/usr/lib/ipsec/_updown is in libreswan 3.23-4.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 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 73 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 | #! /bin/sh
# iproute2 version, default updown script
#
# Copyright (C) 2003-2004 Nigel Metheringham
# Copyright (C) 2002-2007 Michael Richardson <mcr@xelerance.com>
# Copyright (C) 2003-2013 Tuomo Soini <tis@foobar.fi>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
#
# This program 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 General Public License
# for more details.
#
# CAUTION: Installing a new version of Libreswan will install a new
# copy of this script, wiping out any custom changes you make. If
# you need changes, make a copy of this under another name, and customize
# that, and use the (left/right)updown parameters in ipsec.conf to make
# Libreswan use yours instead of this default one.
test $IPSEC_INIT_SCRIPT_DEBUG && set -v -x
LC_ALL=C
export LC_ALL
# things that this script gets (from ipsec_pluto(8) man page)
#
#
# PLUTO_VERSION
# indicates what version of this interface is being
# used. This document describes version 1.1. This
# is upwardly compatible with version 1.0.
#
# PLUTO_VERB
# specifies the name of the operation to be performed
# (prepare-host, prepare-client, up-host, up-client,
# down-host, or down-client). If the address family
# for security gateway to security gateway communications
# is IPv6, then a suffix of -v6 is added to the
# verb.
#
# PLUTO_CONNECTION
# is the name of the connection for which we are
# routing.
#
# PLUTO_CONN_POLICY
# the policy of the connection, as in:
# RSASIG+ENCRYPT+TUNNEL+PFS+DONTREKEY+OPPORTUNISTIC+failureDROP+lKOD+rKOD
#
# PLUTO_NEXT_HOP
# is the next hop to which packets bound for the peer
# must be sent.
#
# PLUTO_INTERFACE
# is the name of the ipsec interface to be used.
#
# PLUTO_ME
# is the IP address of our host.
#
# PLUTO_MY_CLIENT
# is the IP address / count of our client subnet. If
# the client is just the host, this will be the
# host's own IP address / mask (where max is 32 for
# IPv4 and 128 for IPv6).
#
# PLUTO_MY_CLIENT_NET
# is the IP address of our client net. If the client
# is just the host, this will be the host's own IP
# address.
#
# PLUTO_MY_CLIENT_MASK
# is the mask for our client net. If the client is
# just the host, this will be 255.255.255.255.
#
# PLUTO_MY_SOURCEIP
# if non-empty, then the source address for the route will be
# set to this IP address.
#
# PLUTO_MY_PROTOCOL
# is the protocol for this connection. Useful for
# firewalling.
#
# PLUTO_MY_PORT
# is the port. Useful for firewalling.
#
# PLUTO_PEER
# is the IP address of our peer.
#
# PLUTO_PEER_CLIENT
# is the IP address / count of the peer's client subnet.
# If the client is just the peer, this will be
# the peer's own IP address / mask (where max is 32
# for IPv4 and 128 for IPv6).
#
# PLUTO_PEER_CLIENT_NET
# is the IP address of the peer's client net. If the
# client is just the peer, this will be the peer's
# own IP address.
#
# PLUTO_PEER_CLIENT_MASK
# is the mask for the peer's client net. If the
# client is just the peer, this will be
# 255.255.255.255.
#
# PLUTO_PEER_PROTOCOL
# is the protocol set for remote end with port
# selector.
#
# PLUTO_PEER_PORT
# is the peer's port. Useful for firewalling.
#
# PLUTO_CONNECTION_TYPE
#
# PLUTO_MY_REF/PLUTO_PEER_REF
# KLIPSng(mast) references to the SA to be used in each
# direction.
#
# PLUTO_STACK
# The kernel level IPstack used (see protostack=)
#
# PLUTO_SA_REQID
# When using KAME or XFRM/NETKEY, the IPsec SA reqid value
case $PLUTO_VERSION in
1.*)
# Older Pluto?!? Play it safe, script may be using new features.
echo "$0: obsolete interface version \"$PLUTO_VERSION\"," >&2
echo "$0: called by obsolete Pluto?" >&2
exit 2
;;
2.*)
;;
esac
if [ -x /usr/lib/ipsec/_updown.${PLUTO_STACK} ]; then
exec /usr/lib/ipsec/_updown.${PLUTO_STACK} $*
else
echo "FATAL: Could not execute /usr/lib/ipsec/_updown.${PLUTO_STACK} $*"
fi
exit 3
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