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#
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#
# The first set of lines runs perl from any shell. The second set of lines 
# identifies the rest of the file as PERL for EMACS autoformatting. 
# See end of copyright for more information.
#
# 
# -------------------------------------------------------------------
#                                   X-BONE
#
#                          http://www.isi.edu/xbone
#                USC Information Sciences Institute (USC/ISI)
#                   Marina del Rey, California 90292, USA
#                          Copyright (c) 1998-2005
# 
# -------------------------------------------------------------------
#
# Copyright (c) 1998-2005 by the University of Southern California.
# All rights reserved.
#
# Permission to use, copy, modify, and distribute this software and
# its documentation in source and binary forms for non-commercial
# purposes and without fee is hereby granted, provided that the above
# copyright notice appear in all copies and that both the copyright
# notice and this permission notice appear in supporting
# documentation, and that any documentation, advertising materials,
# and other materials related to such distribution and use acknowledge
# that the software was developed by the University of Southern
# California, Information Sciences Institute.  The name of the
# University may not be used to endorse or promote products derived
# from this software without specific prior written permission.
# 
# THE UNIVERSITY OF SOUTHERN CALIFORNIA MAKES NO REPRESENTATIONS ABOUT
# THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE.  THIS SOFTWARE IS
# PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
# Other copyrights might apply to parts of this software and are so
# noted when applicable.
#
# -------------------------------------------------------------------
#
# Effort partly sponsored by the Defense Advanced Research Projects
# Agency (DARPA) and Air Force Research Laboratory, Air Force Materiel
# Command, USAF, under agreement numbers F30602-98-1-0200 (X-Bone) and
# F30602-01-2-0529 (DynaBone). The views and conclusions contained
# herein are those of the authors and should not be interpreted as
# necessarily representing the official policies or endorsements,
# either expressed or implied, of the Defense Advanced Research
# Projects Agency (DARPA), the Air Force Research Laboratory, or the
# U.S. Government.
#
# This work was partly supported by the NSF STI-XTEND (ANI-0230789)
# and NETFS (ANI-0129689) projects. Any opinions, findings, and
# conclusions or recommendations expressed in this material are those
# of the authors and do not necessarily reflect the views of the
# National Science Foundation.
#
# -------------------------------------------------------------------
#  $RCSfile: XB_Defs.pm,v $
#
# $Revision: 1.117 $
#   $Author: pingali $
#     $Date: 2005/03/31 07:03:54 $
#    $State: Exp $
# ----------------------------------------------------------------------------
#
#
#############################################
#
# Common definitions used by XBONE Perl modules.
#
# Principal authors: Gregory Finn, Anindo Bannerjea
#
#############################################

package XB_Defs;

require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw();

@EXPORT_OK = qw(NODEOS ALLOWED_NODEOS XBONE_NET 
		DNS_FILE_FORWARD DNS_FILE_REVERSE NAMED_PID XBONE_HOME
		XBONE_PROTOCOL DNS_SERVER DNS_SERVER_SECONDARY
		DNS_UPDATE_MODE SECURITY_CA_CERT SECURITY_SERVER_CERT
		SECURITY_SERVER_KEY MAX_MCAST_RADIUS XB_CTL_PORT
		MCAST_ADDR CA_EMAIL XB_API_PORT IPSEC_ENABLE_RANDOM_PADDING
		NODEOS_LABEL IP_MULTICAST_IF IP_MULTICAST_TTL
		IP_MULTICAST_LOOP IP_ADD_MEMBERSHIP IP_DROP_MEMBERSHIP
		IP_MULTICAST_VIF SOL_IP NET_TIMEOUT SO_RCVBUF
		ACTUATOR_MSG_LIMIT ACTUATOR_TIMEOUT
                LOG_DEST LOG_MASK LOG_FILE DUPLICATE_DETECTION_INTERVAL
                XBONE_RELEASE XBONE_OVLMGR_BACKCOMPAT XBONE_DAEMON_BACKCOMPAT
		IPSEC_DISABLE_REPLAY_PROTECTION
		LOOPBACK_IP_ADDRESS IP_ADDRESS_LENGTH REVISITATION 
		ENABLE_FIREWALL_FORWARDING NODE_ASSIGNMENT_POLICY);

use strict;
use sigtrap;
use FindBin;
use Config;


# XXX THE XBONE DIRECTORY MUST BE NAMED "xbone" FOR THIS TO WORK!
$XB_Defs::XBONE_HOME = $FindBin::RealBin;
if($XB_Defs::XBONE_HOME =~ /(.*\/xbone)/) { $XB_Defs::XBONE_HOME = $1; } 

#------------------------------------------------------------------------------
# NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW
#------------------------------------------------------------------------------

# Default values for XBone node configuration options:
#
# Notes:
#   - Precedence: command line > configuration file > XB_Defs (default)
#   - Do not change this file unless it's site- or network-specific.
#     Use command line or configuration file to override default values
#     with node-specific properties.
#

  $XB_Defs::xol_ver = "1.6";
  $XB_Defs::XOL_PROTOCOL="1.5";
  $XB_Defs::XBONE_RELEASE="3.0";


  # conf: XBone node configuration file, full or relative path
  $XB_Defs::conf = "xbone.conf";

  # cert & key: node certificate & key files
  $XB_Defs::node_cert = "cert/xbone-node-cert.pem";
  $XB_Defs::node_key  = "cert/xbone-node-key.pem";

  # CAcert: CA cert file:
  $XB_Defs::ca_cert   = "cert/xbone-ca-cert.pem";
  $XB_Defs::ca_path   = "cert";

  # daemon type:   specifies the role of a node in virtual networks
  #   host         host
  #   router       router
  #   node         host or router
  #   network      s/node/network|AS/
  #   meta-node    s/node/virtual network/
  #   manager      network + meta-node
  #   manager+node manager + node
  #   om           old XBone OM
  #   rd           old XBone RD
  #
  $XB_Defs::daemon_type = "node";

  #=============================
  #=> Network-Related Parameters

  # multicast address/group
  $XB_Defs::xbone_mcast_addr = "224.192.0.1";

  # ports:
  #   xbone_api_port: XBone API -> manage virtual networks
  #                   official IANA port: x-bone-api 2165
  #   xbone_ctl_port: XBone CTL -> configure nodes in a virtual network
  #                   official IANA port: x-bone-ctl 265
  $XB_Defs::xbone_api_port = 2165;
  $XB_Defs::xbone_ctl_port = 265;

  # RTT:
  #   Rough estimate on the timeout for RTT in seconds
  #   Note that all timeout values are derived from RTT as listed below:
  $XB_Defs::xbone_rtt = 15;


  # logging:
  #   log_dest: log destination(s), combine the chosen ones with logic OR '|'
  #             operation: SYSLOG, ERR, OUT, FILE.
  #   log_mask: log mask (copied from syslog(3)), list & suggested usages
  #               emerg:      (panic)
  #               alert:      (should be corrected immediately)
  #               crit:       (critical conditions)
  #               err:        errors
  #               warning:    warning messages
  #               notice:     not error conditions, but should be handled
  #               info:       enter/exit subroutines
  #               debug:      misc logs: stop points, traces, etc.
  #               debug3:     dump variables
  #               debug4:     dump data structure
  #               debug5:     dump pkts/messages
  #               debug6:     dump data structure
  #               debug7:     dump pkts/messages
  #               debug0-128: gory details not suitable for human being
  #   log_file: log file, only effective if FILE is included in LOG_DEST

  $XB_Defs::SYSLOG = (2**0);		# log to syslog
  $XB_Defs::ERR    = (2**1);		# log to STDERR
  $XB_Defs::OUT    = (2**2);		# log to STDOUT
  $XB_Defs::FILE   = (2**3);		# log to file

  $XB_Defs::log_dest = $XB_Defs::FILE | $XB_Defs::OUT;

  $XB_Defs::log_mask =
  # For release:
    "emerg alert crit err warning notice";
  # --------------------------------------------------------------
  # For development:
  # "emerg alert crit err warning notice info debug debug0 debug1 ".
  # "debug2 debug3 debug4 debug5";

  $XB_Defs::log_file = "/var/xbone/xbone.log";

  # List of allowed parent Overlay Managers
  @XB_Defs::ovl_manager = ();

  # List of user ACL
  %XB_Defs::user_acl = ();

  # Node Resource

  # DEBUGGING
  $XB_Defs::DEBUGGING = 1;		# main switch, turn on the following

  $XB_Defs::SSL_DEBUG = 2;		# 0=none, 1=errors, 2=1+cipher
                                        # 3=2+progress, 4=3+data


  # XBone message delimiters
  $XB_Defs::msg_delimiter = "XBoneEOC";

#------------------------------------------------------------------------------
# OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD
#------------------------------------------------------------------------------

############################################################
# The following are used only by xb-overlay-manager
# 	They are provided here because
#		- xb-overlay-manager has no config file
#		- this is the place for changeable constants
############################################################

$XB_Defs::XBONE_OVERLAY_MANAGER =   # Hostname used by the OM to 
  "www.xbone.net";                 # identify itself in heartbeats

$XB_Defs::SECURITY_SERVER_CERT =    # used by the OM as its public key
  "$XB_Defs::XBONE_HOME/...";       # XXX no idea where this goes after reorg 

$XB_Defs::SECURITY_SERVER_KEY =     # used by the OM as its private key
  "$XB_Defs::XBONE_HOME/...";       # XXX no idea where this goes after reorg

$XB_Defs::DEMO_MODE = 0;            # Flag for demo mode. Set this to 1 to
                                    # force the OM to pick nodes in the 
                                    # reverse order. 0 is normal operation.

$XB_Defs::XBONE_OVLMGR_BACKCOMPAT = # Overlay Manager is backward compatible
  "";				    # with these XBONE_RELEASE release versions
                                    # (separated by "|", eg, "1.3|1.2")

$XB_Defs::OVLMGR_PING_INTERVAL = 60*15;
                                    # Overlay Manager sweeps all hosts in
  				    # all overlays, issuing heartbeat
				    # messages to each of them.  This sweep
				    # is performed as once every interval.
				    # Value is seconds.

############################################################
# The following are used only by xb-daemon
# This may also go into the XB_daemon.conf. 
# all these are valid only with REVISITATION enabled. 
############################################################
$XB_Defs::ENABLE_FIREWALL_FORWARDING = 1; 
$XB_Defs::ACCEPT_RULE_START = 2500;    
$XB_Defs::ACCEPT_RULE_END   = 3499;
$XB_Defs::FWD_RULE_START    = 3500;    
$XB_Defs::FWD_RULE_END      = 4499;
$XB_Defs::OUT_RULE_START    = 4500;    
$XB_Defs::OUT_RULE_END      = 5499;

# node allocation policy. options are BLOCKED or RR (round robin). 
$XB_Defs::NODE_ASSIGNMENT_POLICY = "BLOCKED"; 

############################################################
# The following are used only by nearly everybody :-)
############################################################

$XB_Defs::XBONE_VERSION_DATE =	    # Date this version was created.
# "30/10/2001";                     # "<day_num>/<month_num>/<year_num>"
  "01/01/2005";                     # <- for development

$XB_Defs::XBONE_OBSOLETE_LIMIT =    # Seconds after the version date
  60*60*24*30*6;                    # when the version should be obsolete.

$XB_Defs::API_PROTOCOL = "2.0";     # Protocol version of the XBone API

$XB_Defs::XBONE_PROTOCOL = "1.5";   # Protocol version of the XBone internal
				    # communication (OM <-> RD)
				    
$XB_Defs::XBONE_RELEASE = "2.0";    # Version number of the XBone software 
				    # release

#$XB_Defs::XBONE_RELEASE = "2.0rc1";# <- for development

$XB_Defs::XBONE_NET =		    # The domain name associated with this
  "xbone.net";                      # particular Xbone overlay network.

$XB_Defs::NODEOS = "";              # Holds OS name read from daemon
  				    # configuration file.

@XB_Defs::ALLOWED_NODEOS =	    # List of allowed OS names for
  qw(freebsd linux solaris sunos kame nist netbsd );  # Resource Daemon (RD) hosts.

@XB_Defs::ALLOWED_DNS_NODEOS =	    # List of allowed OS names for the one
  qw(freebsd linux solaris sunos kame nist );  # RD host that manipulates the Xbone
                                    # DNS domain.

%XB_Defs::NODEOS_LABEL =            # labels (textual representation) of 
  ( freebsd => "FreeBSD",           # allowed NODEOS tags - use these when 
    kame    => "FreeBSD/KAME",      # printing (e.g. web pages)
    linux   => "Linux", 
    nist    => "Linux/NIST",
    sunos   => "SunOS",
    solaris => "Solaris",
    netbsd  => "NetBSD" 
   ); 

$XB_Defs::SYSLOG = (2**0);
$XB_Defs::ERR    = (2**1);
$XB_Defs::OUT    = (2**2);
$XB_Defs::FILE   = (2**3);

$XB_Defs::LOG_DEST =                # Log to both the log file and stderr.
# $XB_Defs::FILE;                   # Also see XB_Log.pm.
  $XB_Defs::FILE|$XB_Defs::OUT;

				    # Specify the set of things to log.
$XB_Defs::LOG_MASK =		    # emerg, alert, crit, err, warning, notice
				    # info, debug0, debug1, ...
				    # For debugging, info, debug, & debug1 are
				    # useful, but very noisy.
# uncomment one of the following two groups for release or coding/debugging

# "emerg alert crit err warning notice"; # for release, log critical ones only

"emerg alert crit err warning ".	# for internal coding/debugging, show
"notice info debug debug0 debug1 ".    # everything
"debug2 debug3 debug4 debug5";


$XB_Defs::LOG_FILE =                # File name where logging data is written.
  "/var/log/xbone.log";             # Use only when XB_Defs::LOG_DEST & "FILE".


$XB_Defs::DAEMON_CONF_FILE = "/usr/local/etc/xbone/Xbone_daemon.conf";
                                    # location of Xbone daemon's configuration

$XB_Defs::DAEMON_STATE_DIR  = "/var/xbone";


$XB_Defs::REVISITATION = 0;         # Should revisitation be enabled? 


#== XBone Runtime Directories ================================================= 
# - XBONE_RUN_DIR:      Base for other XBone runtime directories. Must be
#                       configurable from command line & config file.
#==============================================================================
$XB_Defs::XBONE_RUN_DIR = "/var/xbone";

$XB_Defs::DAEMON_STATE_FILE = "$XB_Defs::DAEMON_STATE_DIR/Xbone_daemon.state";
                                    # File where Xbone daemon's overlay state
                                    # is kept for daemon crash recovery.

%XB_Defs::DAEMON_STATE = ();	    # Hash of Xbone daemon's current state

$XB_Defs::ERASE_AT_STARTUP = 0;     # Erase Xbone daemon's tunnel, IPSec
  				    # and route state.  NOTE: This should be
                                    # non-zero only at ISI.

$XB_Defs::DAEMON_STATE_TIME = 1;    # Last time that the Xbone daemon's state
  				    # was dumped out to the state file.

$XB_Defs::OVERLAY_ALIVE_TIME = 60*120;
                                    # Seconds that the resource daemon will
  				    # allow an overlay to remain without
                                    # receiving a keep-alive message from
                                    # an overlay manager.

$XB_Defs::OVERLAY_SWEEP_INTERVAL = 60*10;
                                    # Seconds that resource daemon waits
                                    # between sweeps, looking for overlays
                                    # that have not been kept alive.
$XB_Defs::NET_TIMEOUT = 120;
                                    # Network timeout in seconds. Use one
                                    # instead of 5 different timeouts before.

#------------------------------------------------------------
# OS dependent section to define NAMED_ZONE_PATH & NAMED_PID.
#------------------------------------------------------------

if ($Config{osname} eq "linux") {
  $XB_Defs::NAMED_ZONE_PATH="/var/named/xbone"; # NEED VERIFICATION!
  if(-d "/var/run/named"){
    $XB_Defs::NAMED_PID="/var/run/named/named.pid";
  }else{
    $XB_Defs::NAMED_PID="/var/run/named.pid";
  }
}
if ($Config{osname} eq "solaris") {
  $XB_Defs::NAMED_ZONE_PATH="/var/adm/domain/xbone";
  $XB_Defs::NAMED_PID="/var/adm/domain/named.pid";
}
if ($Config{osname} eq "freebsd") {
  $XB_Defs::NAMED_ZONE_PATH="/etc/namedb/xbone";
  $XB_Defs::NAMED_PID="/var/run/named.pid";
}     

$XB_Defs::DNS_FILE_FORWARD =        # Forward DNS database file for overlays.b
  "$XB_Defs::NAMED_ZONE_PATH/xbone-forward.zone";

$XB_Defs::DNS_FILE_REVERSE =        # Reverse DNS database file for overlays
  "$XB_Defs::NAMED_ZONE_PATH/xbone-reverse.zone";

$XB_Defs::DNS_SERVER =              # Primary Xbone DNS name server
  "dns1.xbone.net";

$XB_Defs::DNS_SERVER_SECONDARY =    # Secondary Xbone DNS server
  "";
# "dns2.xbone.net"; 

###################################################################
# The only allowed values for the DNS update mode are:
#
# $DNS_UPDATE_MODE = "update_both";
# Update both assumes that the DNS is running in two primaries
# mode and that the DNS system will not update the second primary
#
# $DNS_UPDATE_MODE = "update_1_hup_2";
# Update 1 hup 2 assumes that we have one primary and one secondary
# so we update the primary and hup the secondary to get an instantaneous
# update.
#
# The current decision is to run as update_1_hup_2
###################################################################

$XB_Defs::DNS_UPDATE_MODE =         # See above block comment.
  "update_1_hup_2";

$XB_Defs::DNS_TIMEOUT = 15; 	    # Fifteen second DNS cache time.
  				    # A value lower than 15 is undefined.

# used by both RD and OM when calling XB_SSL::init()
$XB_Defs::SECURITY_CA_CERT = 
  "$XB_Defs::XBONE_HOME/isi/ca/CAcert.pem";

# IPv6 peek: define mcast address
$XB_Defs::MCAST_ADDR =		    # Multicast address used by XBONE
  "224.192.0.1";

$XB_Defs::XB_CTL_PORT = 265;	    # Multicast port used by XBone and alos
				    # the unicast TCP and UDP ports used.
				    # Official IANA port: x-bone-ctl

$XB_Defs::XB_API_PORT = 2165;	    # TCP port used by XBone API
				    # Official IANA port: x-bone-api

# IPv6 peek: define address blocks
$XB_Defs::XB_IP_EXTERNAL_BLOCK =    # IP block for releases, from RFC 1918
  "172.26.0.0/16";                 # (breaks rev DNS w/o RD using XB DNS) 
$XB_Defs::XB_IP_INTERNAL_BLOCK =    # IP block for releases, from RFC 1918
  "172.27.0.0/16";                 # (breaks rev DNS w/o RD using XB DNS) 

#$XB_Defs::XB_IP_EXTERNAL_BLOCK =    # IP block owned by X-Bone project, for
#  "198.32.6.0/24";                  # local ISI use
#$XB_Defs::XB_IP_INTERNAL_BLOCK =    # IP block owned by X-Bone project, for
#  "198.32.7.0/24";                  # local ISI use

# IPv6 peek: define subnet
$XB_Defs::XB_OVL_SUBNET_BITS = 8;

$XB_Defs::MAX_MCAST_RADIUS = 16;    # The largest radius that should be used

$XB_Defs::DUPLICATE_DETECTION_INTERVAL  # time interval in seconds we should
  = 120;                                # keep msgs to prevent duplicates 

$XB_Defs::ACTUATOR_MSG_LIMIT =	    # Maximum size of overlay mgr's reservation
    65536;		            # datagram

$XB_Defs::ACTUATOR_TIMEOUT = 15;    # Time OM waits during resource discovery

$XB_Defs::IP_MULTICAST_IF = 9;
$XB_Defs::IP_MULTICAST_TTL = 10;
$XB_Defs::IP_MULTICAST_LOOP = 11;
$XB_Defs::IP_ADD_MEMBERSHIP = 12;
$XB_Defs::IP_DROP_MEMBERSHIP = 13;
$XB_Defs::IP_MULTICAST_VIF = 14;


########################################################
# getsockopt() and setsockopt layer for IP protocol.
# Needed due to bug in Perl version of getprotobyname().
########################################################

$XB_Defs::SOL_IP = 0;
$XB_Defs::SO_RCVBUF = 128*1024;

#######################################
# Global variables used across modules
#######################################

@XB_Defs::DNS_ADD_FWD_PARMS = ();     # Holds DNS forward addition parameters
@XB_Defs::DNS_DEL_FWD_PARMS = ();     #   "    "  forward deletion     "

#== Application Deployment ====================================================
$XB_Defs::ENABLE_APP_DEPLOY = 1;      # set to 1 to enable app deployment code
%XB_Defs::APP_LIST = ();              # hash: AppName -> [ AppFile, LastTime ]
$XB_Defs::APP_RUN =                   # absolute path for application run-time
  "$XB_Defs::XBONE_RUN_DIR/apps";     # directory
@XB_Defs::APP_KEYWORDS =              # list of known keywords to replace
  ("REALHOST", "OVLHOST", "OVLNAME", "OVLSUFFIX", "REALIP", "IPLIST", "IP1",
   "APPNAME", "APPSCRIPT");
#==============================================================================

# IPv6 peek: loopback
$XB_Defs::LOOPBACK_IP_ADDRESS         # IP Loopback address 
    = "127.0.0.1";

# IPv6 peek: define address length
$XB_Defs::IP_ADDRESS_LENGTH           # Length of IP Address
    = 32;

$ENV{PATH} = "";
foreach my $thispath (qw(/usr/local/v6/ /usr/local/ / /usr/)) {
  foreach my $subdir (qw(sbin bin)) {
    if(-d $thispath.$subdir) { $ENV{PATH} .= ":".$thispath.$subdir; }
  }
}
$ENV{PATH} =~ s/^://;

$XB_Defs::TEMP_DIR = "/tmp/";        # Temporary Directory to use


$XB_Defs::CA_EMAIL =                # email address of the CA that signs 
  "X-Bone Certification Authority ".# certificates for this xbone installation
  "<xbone\@isi.edu>";               # (this should go somewhere else)


1;                            # Insure TRUE return if module is interpreted.


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