VFS_FULL_AUDIT(8)

NAME
vfs_full_audit - record Samba VFS operations in the system log

SYNOPSIS

vfs objects = full_audit

DESCRIPTION

This VFS module is part of the samba(7) suite.

The vfs_full_audit VFS module records selected client operations to the system log using syslog(3).

vfs_full_audit is able to record the complete set of Samba VFS operations:
    chdir
    chflags
    chmod
    chmod_acl
    chown
    close
    closedir
    connect
    copy_chunk_send
    copy_chunk_recv
    disconnect
    disk_free
    fchmod
    fchmod_acl
    fchown
    fget_nt_acl
    fgetxattr
    flistxattr
    fremovexattr
    fset_nt_acl
    fsetxattr
    fstat
    fsync
    ftruncate
    get_compression
    get_nt_acl
    get_quota
    get_shadow_copy_data
    getlock
    getwd
    getxattr
    kernel_flock
    link
    linux_setlease
    listxattr
    lock
    lseek
    lstat
    mkdir
    mknod
    open
    opendir
    pread
    pwrite
    read
    readdir
    readlink
    realpath
    removexattr
    rename
    rewinddir
    rmdir
    seekdir
    sendfile
    set_compression
    set_nt_acl
    set_quota
    setxattr
    stat
    statvfs
    symlink
    sys_acl_delete_def_file
    sys_acl_get_fd
    sys_acl_get_file
    sys_acl_set_fd
    sys_acl_set_file
    telldir
    unlink
    utime
    write

In addition to these operations, vfs_full_audit recognizes the special operation names "all" and "none ", which refer to all the VFS operations and none of the VFS operations respectively.

vfs_full_audit records operations in fixed format consisting of fields separated by '|' characters. The format is:

    		smbd_audit: PREFIX|OPERATION|RESULT|FILE

The record fields are:

    • PREFIX - the result of the full_audit:prefix string after variable substitutions

    • OPERATION - the name of the VFS operation

    • RESULT - whether the operation succeeded or failed

    • FILE - the name of the file or directory the operation was performed on

This module is stackable.

OPTIONS

full_audit:prefix = STRING
    Prepend audit messages with STRING. STRING is processed for standard substitution variables listed in smb.conf(5). The default prefix is "%u|%I".

full_audit:success = LIST
    LIST is a list of VFS operations that should be recorded if they succeed. Operations are specified using the names listed above. Operations can be unset by prefixing the names with "!". The default is all operations.

full_audit:failure = LIST
    LIST is a list of VFS operations that should be recorded if they failed. Operations are specified using the names listed above. Operations can be unset by prefixing the names with "!". The default is all operations.

full_audit:facility = FACILITY
    Log messages to the named syslog(3) facility.

full_audit:priority = PRIORITY
    Log messages with the named syslog(3) priority.

full_audit:syslog = true/false
    Log messages to syslog (default) or as a debug level 1 message.

full_audit:log_secdesc = true/false
    Log an sddl form of the security descriptor coming in when a client sets an acl. Defaults to false.

EXAMPLES

Log file and directory open operations on the [records] share using the LOCAL7 facility and ALERT priority, including the username and IP address. Logging excludes the open VFS function on failures:

            [records]
    	path = /data/records
    	vfs objects = full_audit
    	full_audit:prefix = %u|%I
    	full_audit:success = open opendir
    	full_audit:failure = all !open
    	full_audit:facility = LOCAL7
    	full_audit:priority = ALERT

VERSION

This man page is correct for version 3.0.25 of the Samba suite.

AUTHOR

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