NAME

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

SYNOPSIS

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

DESCRIPTION

       This tool is part of the cifs-utils suite.

       smbinfo is a userspace helper program for the Linux SMB client file system  (CIFS).  It  is  intended  to
       display SMB-specific file informations such as Security Descriptors and Quota.

       This  tool  works  by making an CIFS_QUERY_INFO IOCTL call to the Linux SMB client which in turn issues a
       SMB Query Info request and returns the result. This differs from  getcifsacl  which  uses  extended  file
       attributes.

OPTIONS

       -v     Print version number and exit.

       -V     Verbose output.

       -h     Print help explaining the command line options.

COMMAND

       fileaccessinfo: Prints the FileAccessInformation class

       filealigninfo: Prints the FileAlignmentInformation class

       fileallinfo: Prints the FileAllInformation class

       filebasicinfo: Prints the FileBasicInformation class

       fileeainfo: Prints the FileEaInformation class

       filefsfullsizeinfo: Prints the FileFsFullSizeInformation class

       fileinternalinfo: Prints the FileInternalInformation class

       filemodeinfo: Prints the FileModeInformation class

       filepositioninfo: Prints the FilePositionInformation class

       filestandardinfo: Prints the FileStandardInformation class

       fsctl-getobjid: Prints the ObjectID

       getcompression: Prints the compression setting for the file.

       setcompression -c <no|default|lznt1>: Sets the compression setting for the file.

       list-snapshots: Lists the previous versions of the volume that backs this file

       quota:  Print  the  quota  for  the  volume  in  the form - SID Length - Change Time - Quota Used - Quota
       Threshold - Quota Limit - SID

       secdesc: Print the security descriptor in the form - Revision - Control - Owner SID - Group SID -  ACL  -
       File types - File flags

       keys:  Dump session id, encryption keys and decryption keys so that the SMB3 traffic of this mount can be
       decryped e.g. via wireshark (requires root).

NOTES

       Kernel support for smbinfo utilities requires the CIFS_QUERY_INFO IOCTL which was initially introduced in
       the  4.20  kernel  and  is  only implemented for mount points using SMB2 or above (see mount.cifs(8) vers
       option).

SEE ALSO

       mount.cifs(8), getcifsacl(1)

AUTHOR

       Ronnie Sahlberg wrote the smbinfo program.

       The Linux CIFS Mailing list is the preferred place to ask questions regarding these programs.

                                                                                                      SMBINFO(1)