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initial import (Boeing r1752, NRL r878)

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ahrenholz 2013-08-29 14:21:13 +00:00
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30
daemon/examples/services/sampleFirewall Normal file
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# -------- CUSTOMIZATION REQUIRED --------
#
# Below are sample iptables firewall rules that you can uncomment and edit.
# You can also use ip6tables rules for IPv6.
#
# start by flushing all firewall rules (so this script may be re-run)
#iptables -F
# allow traffic related to established connections
#iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
# allow TCP packets from any source destined for 192.168.1.1
#iptables -A INPUT -s 0/0 -i eth0 -d 192.168.1.1 -p TCP -j ACCEPT
# allow OpenVPN server traffic from eth0
#iptables -A INPUT -p udp --dport 1194 -j ACCEPT
#iptables -A INPUT -i eth0 -j DROP
#iptables -A OUTPUT -p udp --sport 1194 -j ACCEPT
#iptables -A OUTPUT -o eth0 -j DROP
# allow ICMP ping traffic
#iptables -A OUTPUT -p icmp --icmp-type echo-request -j ACCEPT
#iptables -A INPUT -p icmp --icmp-type echo-reply -j ACCEPT
# allow SSH traffic
#iptables -A -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
# drop all other traffic coming in eth0
#iptables -A INPUT -i eth0 -j DROP

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# -------- CUSTOMIZATION REQUIRED --------
#
# The IPsec service builds ESP tunnels between the specified peers using the
# racoon IKEv2 keying daemon. You need to provide keys and the addresses of
# peers, along with subnets to tunnel.
# directory containing the certificate and key described below
keydir=/etc/core/keys
# the name used for the "$certname.pem" x509 certificate and
# "$certname.key" RSA private key, which can be generated using openssl
certname=ipsec1
# list the public-facing IP addresses, starting with the localhost and followed
# by each tunnel peer, separated with a single space
tunnelhosts="172.16.0.1AND172.16.0.2 172.16.0.1AND172.16.2.1"
# Define T<i> where i is the index for each tunnel peer host from
# the tunnel_hosts list above (0 is localhost).
# T<i> is a list of IPsec tunnels with peer i, with a local subnet address
# followed by the remote subnet address:
# T<i>="<local>AND<remote> <local>AND<remote>"
# For example, 172.16.0.0/24 is a local network (behind this node) to be
# tunneled and 172.16.2.0/24 is a remote network (behind peer 1)
T1="172.16.3.0/24AND172.16.5.0/24"
T2="172.16.4.0/24AND172.16.5.0/24 172.16.4.0/24AND172.16.6.0/24"
# -------- END CUSTOMIZATION --------
echo "building config $PWD/ipsec.conf..."
echo "building config $PWD/ipsec.conf..." > $PWD/ipsec.log
checkip=0
if [ "$(dpkg -l | grep " sipcalc ")" = "" ]; then
echo "WARNING: ip validation disabled because package sipcalc not installed
" >> $PWD/ipsec.log
checkip=1
fi
echo "#!/usr/sbin/setkey -f
# Flush the SAD and SPD
flush;
spdflush;
# Security policies \
" > $PWD/ipsec.conf
i=0
for hostpair in $tunnelhosts; do
i=`expr $i + 1`
# parse tunnel host IP
thishost=${hostpair%%AND*}
peerhost=${hostpair##*AND}
if [ $checkip = "0" ] &&
[ "$(sipcalc "$thishost" "$peerhost" | grep ERR)" != "" ]; then
echo "ERROR: invalid host address $thishost or $peerhost \
" >> $PWD/ipsec.log
fi
# parse each tunnel addresses
tunnel_list_var_name=T$i
eval tunnels="$"$tunnel_list_var_name""
for ttunnel in $tunnels; do
lclnet=${ttunnel%%AND*}
rmtnet=${ttunnel##*AND}
if [ $checkip = "0" ] &&
[ "$(sipcalc "$lclnet" "$rmtnet"| grep ERR)" != "" ]; then
echo "ERROR: invalid tunnel address $lclnet and $rmtnet \
" >> $PWD/ipsec.log
fi
# add tunnel policies
echo "
spdadd $lclnet $rmtnet any -P out ipsec
esp/tunnel/$thishost-$peerhost/require;
spdadd $rmtnet $lclnet any -P in ipsec
esp/tunnel/$peerhost-$thishost/require; \
" >> $PWD/ipsec.conf
done
done
echo "building config $PWD/racoon.conf..."
if [ ! -e $keydir\/$certname.key ] || [ ! -e $keydir\/$certname.pem ]; then
echo "ERROR: missing certification files under $keydir \
$certname.key or $certname.pem " >> $PWD/ipsec.log
fi
echo "
path certificate \"$keydir\";
listen {
adminsock disabled;
}
remote anonymous
{
exchange_mode main;
certificate_type x509 \"$certname.pem\" \"$certname.key\";
ca_type x509 \"ca-cert.pem\";
my_identifier asn1dn;
peers_identifier asn1dn;
proposal {
encryption_algorithm 3des ;
hash_algorithm sha1;
authentication_method rsasig ;
dh_group modp768;
}
}
sainfo anonymous
{
pfs_group modp768;
lifetime time 1 hour ;
encryption_algorithm 3des, blowfish 448, rijndael ;
authentication_algorithm hmac_sha1, hmac_md5 ;
compression_algorithm deflate ;
}
" > $PWD/racoon.conf
# the setkey program is required from the ipsec-tools package
echo "running setkey -f $PWD/ipsec.conf..."
setkey -f $PWD/ipsec.conf
echo "running racoon -d -f $PWD/racoon.conf..."
racoon -d -f $PWD/racoon.conf -l racoon.log

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daemon/examples/services/sampleVPNClient Normal file
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# -------- CUSTOMIZATION REQUIRED --------
#
# The VPNClient service builds a VPN tunnel to the specified VPN server using
# OpenVPN software and a virtual TUN/TAP device.
# directory containing the certificate and key described below
keydir=/etc/core/keys
# the name used for a "$keyname.crt" certificate and "$keyname.key" private key.
keyname=client1
# the public IP address of the VPN server this client should connect with
vpnserver="10.0.2.10"
# optional next hop for adding a static route to reach the VPN server
nexthop="10.0.1.1"
# --------- END CUSTOMIZATION --------
# validate addresses
if [ "$(dpkg -l | grep " sipcalc ")" = "" ]; then
echo "WARNING: ip validation disabled because package sipcalc not installed
" > $PWD/vpnclient.log
else
if [ "$(sipcalc "$vpnserver" "$nexthop" | grep ERR)" != "" ]; then
echo "ERROR: invalide address $vpnserver or $nexthop \
" > $PWD/vpnclient.log
fi
fi
# validate key and certification files
if [ ! -e $keydir\/$keyname.key ] || [ ! -e $keydir\/$keyname.crt ] \
|| [ ! -e $keydir\/ca.crt ] || [ ! -e $keydir\/dh1024.pem ]; then
echo "ERROR: missing certification or key files under $keydir \
$keyname.key or $keyname.crt or ca.crt or dh1024.pem" >> $PWD/vpnclient.log
fi
# if necessary, add a static route for reaching the VPN server IP via the IF
vpnservernet=${vpnserver%.*}.0/24
if [ "$nexthop" != "" ]; then
/sbin/ip route add $vpnservernet via $nexthop
fi
# create openvpn client.conf
(
cat << EOF
client
dev tun
proto udp
remote $vpnserver 1194
nobind
ca $keydir/ca.crt
cert $keydir/$keyname.crt
key $keydir/$keyname.key
dh $keydir/dh1024.pem
cipher AES-256-CBC
log $PWD/openvpn-client.log
verb 4
daemon
EOF
) > client.conf
openvpn --config client.conf

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# -------- CUSTOMIZATION REQUIRED --------
#
# The VPNServer service sets up the OpenVPN server for building VPN tunnels
# that allow access via TUN/TAP device to private networks.
#
# note that the IPForward and DefaultRoute services should be enabled
# directory containing the certificate and key described below, in addition to
# a CA certificate and DH key
keydir=/etc/core/keys
# the name used for a "$keyname.crt" certificate and "$keyname.key" private key.
keyname=server2
# the VPN subnet address from which the client VPN IP (for the TUN/TAP)
# will be allocated
vpnsubnet=10.0.200.0
# public IP address of this vpn server (same as VPNClient vpnserver= setting)
vpnserver=10.0.2.10
# optional list of private subnets reachable behind this VPN server
# each subnet and next hop is separated by a space
# "<subnet1>,<nexthop1> <subnet2>,<nexthop2> ..."
privatenets="10.0.11.0,10.0.10.1 10.0.12.0,10.0.10.1"
# optional list of VPN clients, for statically assigning IP addresses to
# clients; also, an optional client subnet can be specified for adding static
# routes via the client
# Note: VPN addresses x.x.x.0-3 are reserved
# "<keyname>,<vpnIP>,<subnetIP> <keyname>,<vpnIP>,<subnetIP> ..."
vpnclients="client1KeyFilename,10.0.200.5,10.0.0.0 client2KeyFilename,,"
# NOTE: you may need to enable the StaticRoutes service on nodes within the
# private subnet, in order to have routes back to the client.
# /sbin/ip ro add <vpnsubnet>/24 via <vpnServerRemoteInterface>
# /sbin/ip ro add <vpnClientSubnet>/24 via <vpnServerRemoteInterface>
# -------- END CUSTOMIZATION --------
echo > $PWD/vpnserver.log
rm -f -r $PWD/ccd
# validate key and certification files
if [ ! -e $keydir\/$keyname.key ] || [ ! -e $keydir\/$keyname.crt ] \
|| [ ! -e $keydir\/ca.crt ] || [ ! -e $keydir\/dh1024.pem ]; then
echo "ERROR: missing certification or key files under $keydir \
$keyname.key or $keyname.crt or ca.crt or dh1024.pem" >> $PWD/vpnserver.log
fi
# validate configuration IP addresses
checkip=0
if [ "$(dpkg -l | grep " sipcalc ")" = "" ]; then
echo "WARNING: ip validation disabled because package sipcalc not installed\
" >> $PWD/vpnserver.log
checkip=1
else
if [ "$(sipcalc "$vpnsubnet" "$vpnserver" | grep ERR)" != "" ]; then
echo "ERROR: invalid vpn subnet or server address \
$vpnsubnet or $vpnserver " >> $PWD/vpnserver.log
fi
fi
# create client vpn ip pool file
(
cat << EOF
EOF
)> $PWD/ippool.txt
# create server.conf file
(
cat << EOF
# openvpn server config
local $vpnserver
server $vpnsubnet 255.255.255.0
push redirect-gateway def1
EOF
)> $PWD/server.conf
# add routes to VPN server private subnets, and push these routes to clients
for privatenet in $privatenets; do
if [ $privatenet != "" ]; then
net=${privatenet%%,*}
nexthop=${privatenet##*,}
if [ $checkip = "0" ] &&
[ "$(sipcalc "$net" "$nexthop" | grep ERR)" != "" ]; then
echo "ERROR: invalid vpn server private net address \
$net or $nexthop " >> $PWD/vpnserver.log
fi
echo push route $net 255.255.255.0 >> $PWD/server.conf
/sbin/ip ro add $net/24 via $nexthop
/sbin/ip ro add $vpnsubnet/24 via $nexthop
fi
done
# allow subnet through this VPN, one route for each client subnet
for client in $vpnclients; do
if [ $client != "" ]; then
cSubnetIP=${client##*,}
cVpnIP=${client#*,}
cVpnIP=${cVpnIP%%,*}
cKeyFilename=${client%%,*}
if [ "$cSubnetIP" != "" ]; then
if [ $checkip = "0" ] &&
[ "$(sipcalc "$cSubnetIP" "$cVpnIP" | grep ERR)" != "" ]; then
echo "ERROR: invalid vpn client and subnet address \
$cSubnetIP or $cVpnIP " >> $PWD/vpnserver.log
fi
echo route $cSubnetIP 255.255.255.0 >> $PWD/server.conf
if ! test -d $PWD/ccd; then
mkdir -p $PWD/ccd
echo client-config-dir $PWD/ccd >> $PWD/server.conf
fi
if test -e $PWD/ccd/$cKeyFilename; then
echo iroute $cSubnetIP 255.255.255.0 >> $PWD/ccd/$cKeyFilename
else
echo iroute $cSubnetIP 255.255.255.0 > $PWD/ccd/$cKeyFilename
fi
fi
if [ "$cVpnIP" != "" ]; then
echo $cKeyFilename,$cVpnIP >> $PWD/ippool.txt
fi
fi
done
(
cat << EOF
keepalive 10 120
ca $keydir/ca.crt
cert $keydir/$keyname.crt
key $keydir/$keyname.key
dh $keydir/dh1024.pem
cipher AES-256-CBC
status /var/log/openvpn-status.log
log /var/log/openvpn-server.log
ifconfig-pool-linear
ifconfig-pool-persist $PWD/ippool.txt
port 1194
proto udp
dev tun
verb 4
daemon
EOF
)>> $PWD/server.conf
# start vpn server
openvpn --config server.conf