smbcacls



SMBCACLS(1)                                                        SMBCACLS(1)




NAME

       smbcacls - Set or get ACLs on an NT file or directory names


SYNOPSIS

       smbcacls {//server/share} {filename} [-D acls] [-M acls] [-a acls]
                [-S acls] [-C name] [-G name] [--numeric] [-t] [-U username]
                [-h] [-d]



DESCRIPTION

       This tool is part of the samba(7) suite.


       The  smbcacls program manipulates NT Access Control Lists (ACLs) on SMB
       file shares.



OPTIONS

       The following options are available to the smbcacls program. The format
       of ACLs is described in the section ACL FORMAT


       -a acls
              Add  the ACLs specified to the ACL list. Existing access control
              entries are unchanged.


       -M acls
              Modify the mask value (permissions) for the  ACLs  specified  on
              the  command  line. An error will be printed for each ACL speci-
              fied that was not already present in the ACL list


       -D acls
              Delete any ACLs specified on the command line. An error will  be
              printed  for  each ACL specified that was not already present in
              the ACL list.


       -S acls
              This command sets the ACLs on the file with only the ones speci-
              fied  on  the command line. All other ACLs are erased. Note that
              the ACL specified must contain at least a revision, type,  owner
              and group for the call to succeed.


       -U username
              Specifies  a  username used to connect to the specified service.
              The username may be of the form "username" in which case the us-
              er  is  prompted to enter in a password and the workgroup speci-
              fied in the smb.conf(5) file is used, or "username%password"  or
              "DOMAIN\username%password"  and the password and workgroup names
              are used as provided.


       -C name
              The owner of a file or directory can be changed to the name giv-
              en  using  the  -C  option.  The  name  can be a sid in the form
              S-1-x-y-z or a name resolved against the server specified in the
              first argument.

              This command is a shortcut for -M OWNER:name.


       -G name
              The  group  owner  of  a file or directory can be changed to the
              name given using the -G option. The name can be  a  sid  in  the
              form S-1-x-y-z or a name resolved against the server specified n
              the first argument.

              This command is a shortcut for -M GROUP:name.


       --numeric
              This option displays all ACL information in numeric format.  The
              default is to convert SIDs to names and ACE types and masks to a
              readable string format.


       -t     Don’t actually do anything, only validate the correctness of the
              arguments.


       -h|--help
              Print a summary of command line options.


       -V     Prints the program version number.


       -s <configuration file>
              The  file  specified contains the configuration details required
              by the server. The information in this file includes server-spe-
              cific  information such as what printcap file to use, as well as
              descriptions of all the services that the server is to  provide.
              See  smb.conf  for  more  information. The default configuration
              file name is determined at compile time.


       -d|--debug=debuglevel
              debuglevel is an integer from 0 to 10. The default value if this
              parameter is not specified is zero.

              The higher this value, the more detail will be logged to the log
              files about the activities of the server. At level 0, only crit-
              ical  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.

              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.

              Note that specifying this parameter here will override the   pa-
              rameter in the smb.conf file.


       -l|--logfile=logdirectory
              Base  directory  name for log/debug files. The extension ".prog-
              name" will be appended (e.g. log.smbclient,  log.smbd,  etc...).
              The log file is never removed by the client.



ACL FORMAT

       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:




       REVISION:<revision number>
       OWNER:<sid or name>
       GROUP:<sid or name>
       ACL:<sid or name>:<type>/<flags>/<mask>



       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.


       The owner and group specify the owner and group sids for the object. If
       a  SID in the format S-1-x-y-z is specified this is used, otherwise the
       name specified is resolved using the server on which the file or direc-
       tory resides.


       ACLs  specify  permissions  granted  to  the SID. This SID again 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.


       The type can be either 0 or 1 corresponding to ALLOWED or DENIED access
       to the SID. The flags values are generally zero for file ACLs  and  ei-
       ther 9 or 2 for directory ACLs. Some common flags are:


       ·  #define SEC_ACE_FLAG_OBJECT_INHERIT 0x1

       ·  #define SEC_ACE_FLAG_CONTAINER_INHERIT 0x2

       ·  #define SEC_ACE_FLAG_NO_PROPAGATE_INHERIT 0x4

       ·  #define SEC_ACE_FLAG_INHERIT_ONLY 0x8



       At  present  flags can only be specified as decimal or hexadecimal val-
       ues.


       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.


       ·  R - Allow read access

       ·  W - Allow write access

       ·  X - Execute permission on the object

       ·  D - Delete the object

       ·  P - Change permissions

       ·  O - Take ownership



       The following combined permissions can be specified:


       ·  READ - Equivalent to ’RX’ permissions

       ·  CHANGE - Equivalent to ’RXWD’ permissions

       ·  FULL - Equivalent to ’RWXDPO’ permissions




EXIT STATUS

       The  smbcacls  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.


       If  the  operation succeeded, smbcacls returns and exit status of 0. If
       smbcacls couldn’t connect to the specified server, or there was an  er-
       ror  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.



VERSION

       This man page is correct for version 3.0 of the Samba suite.



AUTHOR

       The  original  Samba software and related utilities were created by An-
       drew Tridgell. Samba is now developed by the  Samba  Team  as  an  Open
       Source project similar to the way the Linux kernel is developed.


       smbcacls was written by Andrew Tridgell and Tim Potter.


       The  conversion to DocBook for Samba 2.2 was done by Gerald Carter. The
       conversion to DocBook XML 4.2 for  Samba  3.0  was  done  by  Alexander
       Bokovoy.




                                                                   SMBCACLS(1)

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