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============
smbinfo
============
-----------------------------------------------------------------------------------------------------
Userspace helper to display SMB-specific file information for the Linux SMB client file system (CIFS)
-----------------------------------------------------------------------------------------------------
:Manual section: 1
********
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.
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