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#!/usr/bin/perl
# distribution boxbackup-0.11rc2 (svn version: 2072)
#
# Copyright (c) 2003 - 2008
# Ben Summers and contributors. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. All use of this software and associated advertising materials must
# display the following acknowledgment:
# This product includes software developed by Ben Summers.
# 4. The names of the Authors may not be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#
# [Where legally impermissible the Authors do not disclaim liability for
# direct physical injury or death caused solely by defects in the software
# unless it is modified by a third party.]
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#
#
use strict;
# should be running as root
if($> != 0)
{
printf "\nWARNING: this should be run as root\n\n"
}
# check and get command line parameters
if($#ARGV != 4 && $#ARGV != 2)
{
print <<__E;
Setup raidfile config utility.
Bad command line parameters.
Usage:
raidfile-config config-dir block-size dir0 [dir1 dir2]
Parameters:
config-dir is usually /etc/box
block-size must be a power of two, and usually the block or
fragment size of your file system
dir0, dir1, dir2 are the directories used as the root of the raid
file system
If only one directory is specified, then userland RAID is disabled.
Specifying three directories enables it.
__E
exit(1);
}
my ($config_dir,$block_size,@dirs) = @ARGV;
my $conf = $config_dir . '/raidfile.conf';
# check dirs are unique, and exist
my %d;
for(@dirs)
{
die "$_ is used twice" if exists $d{$_};
die "$_ is not a directory" unless -d $_;
die "$_ should be an absolute path" unless m/\A\//;
$d{$_} = 1;
}
# check block size is OK
$block_size = int($block_size);
die "Bad block size" if $block_size <= 0;
my $c = 1;
while(1)
{
last if $c == $block_size;
die "Block size $block_size is not a power of two" if $c > $block_size;
$c = $c * 2;
}
# check that it doesn't already exist
if(-f $conf)
{
die "$conf already exists. Delete and try again";
}
# create directory
if(!-d $config_dir)
{
print "Creating $config_dir...\n";
mkdir $config_dir,0755 or die "Can't create $config_dir";
}
# adjust if userland RAID is disabled
if($#dirs == 0)
{
$dirs[1] = $dirs[0];
$dirs[2] = $dirs[0];
print "WARNING: userland RAID is disabled.\n";
}
# write the file
open CONFIG,">$conf" or die "Can't open $conf for writing";
print CONFIG <<__E;
disc0
{
SetNumber = 0
BlockSize = $block_size
Dir0 = $dirs[0]
Dir1 = $dirs[1]
Dir2 = $dirs[2]
}
__E
close CONFIG;
print "Config file written.\n";
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