1SMBINFO(1)                                                          SMBINFO(1)
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NAME

6       smbinfo - Userspace helper to display SMB-specific file information for
7       the Linux SMB client file system (CIFS)
8

SYNOPSIS

10          smbinfo [-v] [-h] [-V] {command} {file system object}
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DESCRIPTION

13       This tool is part of the cifs-utils suite.
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15       smbinfo is a userspace helper program for the  Linux  SMB  client  file
16       system (CIFS). It is intended to display SMB-specific file informations
17       such as Security Descriptors and Quota.
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19       This tool works by making an CIFS_QUERY_INFO IOCTL call  to  the  Linux
20       SMB  client  which  in turn issues a SMB Query Info request and returns
21       the result. This differs  from  getcifsacl  which  uses  extended  file
22       attributes.
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OPTIONS

25       -v     Print version number and exit.
26
27       -V     Verbose output.
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29       -h     Print help explaining the command line options.
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COMMAND

32       fileaccessinfo: Prints the FileAccessInformation class
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34       filealigninfo: Prints the FileAlignmentInformation class
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36       fileallinfo: Prints the FileAllInformation class
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38       filebasicinfo: Prints the FileBasicInformation class
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40       fileeainfo: Prints the FileEaInformation class
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42       filefsfullsizeinfo: Prints the FileFsFullSizeInformation class
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44       fileinternalinfo: Prints the FileInternalInformation class
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46       filemodeinfo: Prints the FileModeInformation class
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48       filepositioninfo: Prints the FilePositionInformation class
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50       filestandardinfo: Prints the FileStandardInformation class
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52       fsctl-getobjid: Prints the ObjectID
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54       getcompression: Prints the compression setting for the file.
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56       setcompression  -c <no|default|lznt1>: Sets the compression setting for
57       the file.
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59       list-snapshots: Lists the previous versions of the  volume  that  backs
60       this file
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62       quota: Print the quota for the volume in the form - SID Length - Change
63       Time - Quota Used - Quota Threshold - Quota Limit - SID
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65       secdesc: Print the security descriptor in the form - Revision - Control
66       - Owner SID - Group SID - ACL - File types - File flags
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68       keys:  Dump session id, encryption keys and decryption keys so that the
69       SMB3 traffic of this mount can be decryped e.g. via wireshark (requires
70       root).
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NOTES

73       Kernel support for smbinfo utilities requires the CIFS_QUERY_INFO IOCTL
74       which was initially introduced in the 4.20 kernel and  is  only  imple‐
75       mented  for  mount  points  using SMB2 or above (see mount.cifs(8) vers
76       option).
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SEE ALSO

79       mount.cifs(8), getcifsacl(1)
80

AUTHOR

82       Ronnie Sahlberg wrote the smbinfo program.
83
84       The Linux CIFS Mailing list is the preferred  place  to  ask  questions
85       regarding these programs.
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90                                                                    SMBINFO(1)
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