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#!/usr/bin/perl
# Create, update or delete an extent
use strict;
use warnings;
no warnings 'redefine';
no warnings 'uninitialized';
require './iscsi-server-lib.pl';
our (%text, %in, %config);
&lock_file($config{'targets_file'});
my $conf = &get_iscsi_config();
&ReadParse();
&error_setup($in{'delete'} ? $text{'extent_derr'} : $text{'extent_err'});
my ($extent, $old_extent);
if (!$in{'new'}) {
# Get the existing extent
$extent = &find($conf, "extent", $in{'num'});
$extent || &text('extent_egone', $in{'num'});
$old_extent = $extent;
}
else {
# Creating a new one
$extent = { 'num' => &find_free_num($conf, 'extent'),
'type' => 'extent' };
}
if ($in{'delete'}) {
# Check if in use before deleting
my @users = &find_extent_users($conf, $extent);
if (@users) {
&error(&text('extent_einuse',
join(", ", map { &describe_object($_) } @users)));
}
# Delete, after asking for confirmation
if ($in{'confirm'}) {
# Delete it
&save_directive($conf, $extent, undef);
}
else {
# Ask first
&ui_print_header(undef, $text{'extent_edit'}, "");
print &ui_confirmation_form(
"save_extent.cgi",
&text('extent_rusure',
&mount::device_name($extent->{'device'})),
[ [ 'num', $in{'num'} ],
[ 'delete', 1 ] ],
[ [ 'confirm', $text{'extent_sure'} ] ],
);
&ui_print_footer("list_extents.cgi", $text{'extents_return'});
return;
}
}
else {
# Validate and store inputs
if ($in{'mode'} eq 'part') {
$extent->{'device'} = $in{'part'};
}
elsif ($in{'mode'} eq 'raid') {
$extent->{'device'} = $in{'raid'};
}
elsif ($in{'mode'} eq 'lvm') {
$extent->{'device'} = $in{'lvm'};
}
else {
-f $in{'other'} || &error($text{'extent_eother'});
$extent->{'device'} = $in{'other'};
}
$in{'start'} =~ /^\d+$/ || &error($text{'extent_estart'});
$extent->{'start'} = $in{'start'}*$in{'start_units'};
my $maxsize = &get_device_size($extent->{'device'}, $in{'mode'});
if ($in{'size_def'}) {
$extent->{'size'} = $maxsize;
}
else {
$in{'size'} =~ /^\d+$/ && $in{'size'} > 0 ||
&error($text{'extent_esize'});
$extent->{'size'} = $in{'size'}*$in{'size_units'};
}
$extent->{'start'} + $extent->{'size'} <= $maxsize ||
&error(&text('extent_esizemax', &nice_size($maxsize)));
# Write out the config
&save_directive($conf, $old_extent, $extent);
}
&unlock_file($config{'targets_file'});
&webmin_log($in{'new'} ? 'create' : $in{'delete'} ? 'delete' : 'modify',
'extent', $extent->{'device'});
&redirect("list_extents.cgi");