rc.delays 3.74 KB
Newer Older
1 2
#!/usr/bin/perl -w
#
Mike Hibler's avatar
Mike Hibler committed
3
# Copyright (c) 2004, 2005, 2009 University of Utah and the Flux Group.
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
# 
# {{{EMULAB-LICENSE
# 
# This file is part of the Emulab network testbed software.
# 
# This file is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
# 
# This file is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public
# License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with this file.  If not, see <http://www.gnu.org/licenses/>.
# 
# }}}
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72
#
use English;
use Getopt::Std;

#
# An artifact is that all the delay stuff is handled in OS dependent
# scripts. This is just a wrapper. The delay agent is also started and
# stopped in the OS dependent stuff. Eventually clean this up.
#
# We ignore the -r option for now; delaysetup does not need it. 
#
sub usage()
{
    print "Usage: " .
	scriptname() . " [-j vnodeid] [-r rtabid] ".
	               "boot|shutdown|reconfig|reset\n";
    exit(1);
}
my $optlist = "j:r:";
my $action  = "boot";
my $vnodeid;

# Turn off line buffering on output
$| = 1;

# Drag in path stuff so we can find emulab stuff.
BEGIN { require "/etc/emulab/paths.pm"; import emulabpaths; }

# Only root.
if ($EUID != 0) {
    die("*** $0:\n".
	"    Must be root to run this script!\n");
}

# Script specific goo.
my $DELAYSETUP = "$BINDIR/delaysetup";
my $DELAYAGENT = "$BINDIR/rc/rc.delayagent";

#
# Load the OS independent support library. It will load the OS dependent
# library and initialize itself. 
# 
use libsetup;
use libtmcc;
use librc;

#
# Not all clients support this.
#
exit(0)
73
    if (MFS() || REMOTE() || JAILED() || INXENVM() || INDOCKERVM() || PLAB());
74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182

# Protos.
sub doboot();
sub doshutdown();
sub doreconfig();
sub docleanup();

# Parse command line.
if (! getopts($optlist, \%options)) {
    usage();
}
if (defined($options{'j'})) {
    $vnodeid = $options{'j'};
    libsetup_setvnodeid($vnodeid);
}
# Allow default above.
if (@ARGV) {
    $action = $ARGV[0];
}

# Execute the action.
SWITCH: for ($action) {
    /^boot$/i && do {
	doboot();
	last SWITCH;
    };
    /^shutdown$/i && do {
	doshutdown();
	last SWITCH;
    };
    /^reconfig$/i && do {
	doreconfig();
	last SWITCH;
    };
    /^reset$/i && do {
	docleanup();
	last SWITCH;
    };
    fatal("Invalid action: $action\n");
}
exit(0);

#
# Boot Action.
#
sub doboot()
{
    #
    # Just run the delaysetup script. It does it all.
    #
    my $optarg = (defined($vnodeid) ? "-j $vnodeid" : "");
    
    system("$DELAYSETUP -i $optarg");
    if ($?) {
	fatal("Could not install delays!");
    }
    #
    # Fire up the delayagent if we can (not done for linux yet).
    #
    if (-x $DELAYAGENT) {
	system("$DELAYAGENT $optarg start");
	if ($?) {
	    fatal("Could not start delay agent!");
	}
    }
}

#
# Shutdown Action.
#
sub doshutdown()
{
    #
    # Just run the delaysetup script. It does it all.
    #
    my $optarg = (defined($vnodeid) ? "-j $vnodeid" : "");

    #
    # Kill the delayagent if we can (not done for linux yet).
    #
    if (-x $DELAYAGENT) {
	system("$DELAYAGENT $optarg stop");
	if ($?) {
	    fatal("Could not stop delay agent!");
	}
    }
   
    system("$DELAYSETUP -u $optarg");
    if ($?) {
	fatal("Could not uninstall existing delays!");
    }
}

#
# Node Reconfig Action (without rebooting).
#
sub doreconfig()
{
    doshutdown();
    return doboot();
}

#
# Node cleanup action (node is reset to completely clean state).
#
sub docleanup()
{
    unlink TMDELAY, TMLINKDELAY, TMDELMAP;
}
183