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#!/usr/bin/perl -w
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright 2008 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
#
# RCM script to allow/deny removal of miscellaneous virtual devices
# from an LDoms domain.
#
# Currently, the only device in this category is vcc
# (virtual-console-concentrator).
#
use strict;
my $vcc_path_prefix = "/devices/virtual-devices\@100/channel-devices\@200/";
my $vcc_leaf_node = "virtual-console-concentrator";
my $cmd;
my %dispatch;
sub do_scriptinfo
{
print "rcm_log_debug=do_scriptinfo\n";
print "rcm_script_version=1\n";
print "rcm_script_func_info=VIO DR (VCC)\n";
exit (0);
}
sub do_resourceinfo
{
print "rcm_log_debug=do_resourceinfo\n";
print "rcm_resource_usage_info=" .
"in use by virtual console service (vntsd)\n";
exit (0);
}
sub do_register
{
print "rcm_log_debug=do_register\n";
#
# Identify any vcc devices in the system. Vntsd always keeps the
# ":ctl" node open as a way to create or remove console ports, so
# use that as a proxy for the entire device.
#
my $path = $vcc_path_prefix . $vcc_leaf_node . "\*ctl";
my @devs = glob $path;
my $consdev;
#
# Tell the RCM framework to notify us if there is a request to
# remove a vcc device.
#
printf "rcm_log_debug=do_register: %d devices\n", scalar(@devs);
foreach $consdev(@devs) {
print "rcm_resource_name=$consdev\n";
}
exit (0);
}
sub do_queryremove
{
my $rsrc = shift(@ARGV);
print "rcm_log_debug=do_queryremove: '$rsrc'\n";
#
# fuser(8) sends to stdout the pids of any processes using the
# device. Some other information always appears on stderr and
# must be discarded to avoid invalidating the test.
#
my $str = `/usr/sbin/fuser $rsrc 2>/dev/null`;
if ($? != 0) {
printf "rcm_log_err=do_queryremove: " .
"fuser failed (status %d)\n", $?;
print "rcm_failure_reason=helper command (fuser) failed\n";
exit (1);
}
my @words = split(/ /, $str);
# Allow the operation if device not opened by any processes.
if (scalar(@words) != 0) {
print "rcm_log_debug=BLOCKED\n";
print "rcm_failure_reason=device " .
"in use by virtual console service (vntsd)\n";
exit (3);
}
exit (0);
}
$cmd = shift(@ARGV);
# dispatch table for RCM commands
%dispatch = (
"scriptinfo" => \&do_scriptinfo,
"resourceinfo" => \&do_resourceinfo,
"register" => \&do_register,
"queryremove" => \&do_queryremove
);
if (defined($dispatch{$cmd})) {
&{$dispatch{$cmd}};
} else {
exit (2);
}
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