clamfs(1)

NAME

   clamfs - an anti-virus protected file system

SYNOPSIS

   clamfs <configuration.file>

DESCRIPTION

   This manual page documents briefly the ClamFS user-space file system.

   clamfs  is  a  program that mount anti-virus protected file system into
   existing directory tree.

   Features
   * User-space file system (no kernel patches, recompilation, etc.)

   * Configuration stored in XML files

   * FUSE (and libfuse) used as file system back-end

   * Scan files using ClamAV

   * ScanCache (LRU with time-based and out-of-memory  expiration)  speeds
          up file access

   * Sends mail to administrator when detect virus

   Idea
   ClamFS is completely user-space anti-virus solution for Linux.  It uses
   libfuse and Linux kernel module to provide file system.  ClamAV is used
   as anti-virus scanner.

   Normally  program  (or  library)  uses glibc open() call to obtain file
   descriptor.  Glibc calls kernel VFS to open  file  regardless  of  file
   system  used.   If  file is on ClamFS file system open call from VFS is
   directed to user-space by FUSE.  ClamFS calls  libfuse  to  communicate
   with FUSE and through it with VFS.

   Internals
   ClamFS is spitted into four parts:

   *  libfuse  bindings  --  used  to  communicate with FUSE (and with VFS
          through it),

   * ScanCache -- store (per file) results of anti-virus scanning to speed
          up future open() requests

   * ScanQueue -- queue files for scanning

   *   clamd   /   libclamav   bindings  --  communicate  with  anti-virus
          scanner

OPTIONS

   This program uses only one command line argument -  configuration  file
   name.

SEE ALSO

   fusermount(1), clamd(8), clamdscan(1), clamscan(1), freshclam(1).
   ClamFS Project Page: http://clamfs.sourceforge.net/

AUTHOR

   ClamFS  and  this  manual  page  was  written  by  Krzysztof  Burghardt
   <[email protected]> and may be freely distributed under the  terms
   of the GNU General Public License.

                              09 Feb 2007                        CLAMFS(1)

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