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#!/usr/bin/perl
# Create, update or delete a target
use strict;
use warnings;
no warnings 'redefine';
no warnings 'uninitialized';
require './iscsi-target-lib.pl';
our (%text, %in, %config);
&ReadParse();
&error_setup($text{'target_err'});
&lock_file($config{'config_file'});
my $pconf = &get_iscsi_config_parent();
my $conf = $pconf->{'members'};
# Get the target
my $target;
if ($in{'new'}) {
$target = { 'name' => 'Target',
'members' => [ ] };
}
else {
($target) = grep { $_->{'value'} eq $in{'oldname'} }
&find($conf, "Target");
$target || &error($text{'target_egone'});
}
if ($in{'delete'}) {
# Delete the target
&save_directive($conf, $pconf, [ $target ], [ ]);
}
else {
# Validate and save directives, starting with target name
my $host;
if ($in{'new'}) {
$host = &find_host_name($conf) || &generate_host_name();
}
else {
($host) = split(/:/, $target->{'value'});
}
$in{'name'} =~ /^[a-z0-9\.\_\-]+$/i || &error($text{'target_ename'});
$target->{'value'} = $host.":".$in{'name'};
# Validate logical units
my @luns = &find_value($target->{'members'}, "Lun");
my @newluns;
my $lastlunid = 0;
for(my $i=0; defined($in{"mode".$i}); $i++) {
my ($lunid, $lunstr) = split(/\s+/, $luns[$i]);
$lunid ||= ($lastlunid + 1);
$lastlunid = $lunid;
my %lunopts = map { split(/=/, $_) } split(/,/, $lunstr);
# Clear variables that we will set below
delete($lunopts{"Path"});
delete($lunopts{"Type"});
delete($lunopts{"Sectors"});
if ($in{"mode".$i} eq "none") {
# Nothing to do
next;
}
elsif ($in{"mode".$i} eq "part") {
# Regular partition
$lunopts{"Path"} = $in{"part".$i};
}
elsif ($in{"mode".$i} eq "raid") {
# RAID device
$lunopts{"Path"} = $in{"raid".$i};
}
elsif ($in{"mode".$i} eq "lvm") {
# LVM logical volume
$lunopts{"Path"} = $in{"lvm".$i};
}
elsif ($in{"mode".$i} eq "other") {
# Some other file
$in{"other".$i} =~ /^\/\S+$/ && -r $in{"other".$i} ||
&error(&text('target_eother', $i+1));
$lunopts{"Path"} = $in{"other".$i};
}
elsif ($in{"mode".$i} eq "null") {
# Null-IO device
$lunopts{"Type"} = "nullio";
$in{"null".$i} =~ /^\d+$/ && $in{"null".$i} > 0 ||
&error(&text('target_esectors', $i+1));
$lunopts{"Sectors"} = $in{"null".$i};
}
if ($in{"mode".$i} ne "null") {
# Save IO mode
$lunopts{"Type"} = $in{"type".$i};
$lunopts{"IOMode"} = $in{"iomode".$i};
}
push(@newluns, $lunid." ".
join(",", map { $_."=".$lunopts{$_} }
grep { $lunopts{$_} ne "" }
(keys %lunopts)));
}
&save_directive($conf, $target, "Lun", \@newluns);
# Validate incoming user(s)
my @iusers;
if (!$in{"iuser_def"}) {
for(my $i=0; defined($in{"uname_$i"}); $i++) {
next if (!$in{"uname_$i"});
$in{"uname_$i"} =~ /^\S+$/ ||
&error(&text('target_eiuser', $i+1));
$in{"upass_$i"} =~ /^\S+$/ ||
&error(&text('target_eipass', $i+1));
push(@iusers, $in{"uname_$i"}." ".$in{"upass_$i"});
}
@iusers || &error($text{'target_eiusernone'});
}
&save_directive($conf, $target, "IncomingUser", \@iusers);
# Validate outgoing user
if ($in{"ouser_def"}) {
&save_directive($conf, $target, "OutgoingUser", [ ]);
}
else {
$in{"ouser"} =~ /^\S+$/ || &error($text{'target_eouser'});
$in{"opass"} =~ /^\S+$/ || &error($text{'target_eopass'});
&save_directive($conf, $target, "OutgoingUser",
[ $in{"ouser"}." ".$in{"opass"} ]);
}
# Save alias
if ($in{'alias_def'}) {
&save_directive($conf, $target, "Alias", [ ]);
}
else {
$in{'alias'} =~ /^[a-z0-9\.\_\-]+$/i ||
&error($text{'target_ealias'});
&save_directive($conf, $target, "Alias", [ $in{'alias'} ]);
}
# Save digest modes
&save_directive($conf, $target, "HeaderDigest",
$in{'hdigest'} ? [ $in{'hdigest'} ] : [ ]);
&save_directive($conf, $target, "DataDigest",
$in{'ddigest'} ? [ $in{'ddigest'} ] : [ ]);
# Save the target
&save_directive($conf, $pconf, $in{'new'} ? [ ] : [ $target ],
[ $target ]);
}
&flush_file_lines($config{'config_file'});
&unlock_file($config{'config_file'});
&webmin_log($in{'delete'} ? 'delete' : $in{'new'} ? 'create' : 'modify',
'target', $target->{'value'});
&redirect("");