Add a possibility to change the state (offline or ready) of targets.
It is possible to offline/ready all targets, target specified with its name
(i.e. iqn.2008-08.com.example:some.target) or tid.
This is an example usage help for the --offline option (--ready works in the
same way):
# ./tgt-admin --offline help
"./tgt-admin --offline <value>" - offline all or selected targets.
Example usage:
--offline help - display this help
--offline ALL - offline all targets
--offline tid=4 - offline target 4 (target with tid 4)
--offline iqn.2008-08.com.example:some.target - offline this target
Signed-off-by: Tomasz Chmielewski <[EMAIL PROTECTED]>
diff --git a/scripts/tgt-admin b/scripts/tgt-admin
index 162cac2..eceea83 100755
--- a/scripts/tgt-admin
+++ b/scripts/tgt-admin
@@ -25,6 +25,10 @@ This tool configures tgt targets.
-e, --execute read $configfile and execute tgtadm commands
-d, --delete delete all the targets
+ --offline <value> put all or selected targets in offline state
+ (see "--offline help" for more info)
+ --ready <value> put all or selected targets in ready state
+ (see "--ready help" for more info)
-s, --show show all the targets
-c, --conf <conf file> specify an alternative configuration file
-f, --force don't exit on tgtadm errors
@@ -41,6 +45,8 @@ my %conf;
my $param = $ARGV[0];
my $execute = 0;
my $delete = 0;
+my $offline = 0;
+my $ready = 0;
my $show = 0;
my $alternate_conf="0";
my $force = 0;
@@ -51,6 +57,8 @@ my $help = 0;
my $result = GetOptions (
"e|execute" => \$execute,
"d|delete" => \$delete,
+ "offline=s" => \$offline,
+ "ready=s" => \$ready,
"s|show" => \$show,
"c|conf=s" => \$alternate_conf,
"f|force" => \$force,
@@ -403,6 +411,50 @@ sub dump_config {
}
}
+# Offline or ready targets
+sub ready_offline_targets {
+ my $var = $_[0]; # This variable is either "offline" or "ready"
+ my $off_ready;
+ if ($ready eq 0) {
+ $off_ready = $offline
+ } elsif ($offline eq 0) {
+ $off_ready = $ready
+ } else {
+ print "Invalid value (you can't use both ready and offline)!\n";
+ exit 1
+ }
+ if ($off_ready eq "help") {
+ print <<EOF;
+"$ENV{_} --$var <value>" - $var all or selected targets.
+
+Example usage:
+ --$var help - display this help
+ --$var ALL - $var all targets
+ --$var tid=4 - $var target 4 (target with tid 4)
+ --$var iqn.2008-08.com.example:some.target - $var this target
+
+EOF
+ } elsif ($off_ready eq "ALL") {
+ &process_targets;
+ # Run over all targets and offline/ready them
+ my @all_targets = keys %tgtadm_output_tid;
+ foreach my $existing_target (@all_targets) {
+ execute("tgtadm --op update --mode target
--tid=$tgtadm_output_tid{$existing_target} -n state -v $var");
+ }
+ } elsif ($off_ready =~ m/tid=(.+)/) {
+ &process_targets;
+ execute("tgtadm --op update --mode target --tid=$1 -n state -v
$var");
+ } else {
+ &process_targets;
+ if (length $tgtadm_output_tid{$off_ready}) {
+ execute("tgtadm --op update --mode target
--tid=$tgtadm_output_tid{$off_ready} --name=\"$off_ready\" -n state -v $var");
+ } else {
+ print "There is no target with name \"$off_ready\",
can't $var it!\n";
+ exit 1;
+ }
+ }
+}
+
# Some checks
sub check {
if ( not defined $_[0] or not length $_[0] ) {
@@ -439,7 +491,7 @@ sub execute {
}
}
-if (($execute == 1) || ($pretend == 1)) {
+if ($execute == 1) {
&process_targets;
&parse_configs;
&add_targets;
@@ -450,6 +502,10 @@ if (($execute == 1) || ($pretend == 1)) {
&remove_targets;
} elsif ($dump == 1) {
&dump_config;
+} elsif ($offline ne 0) {
+ &ready_offline_targets("offline");
+} elsif ($ready ne 0) {
+ &ready_offline_targets("ready");
} else {
print "No action specified.\n";
}
--
Tomasz Chmielewski
http://wpkg.org
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