1 #!/bin/sh 2 3 # 4 # sa-up.sh local configuration for a new SA 5 # 6 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin 7 8 case `uname -s` in 9 NetBSD) 10 DEFAULT_GW=`netstat -rn | awk '($1 == "default"){print $2}'` 11 ;; 12 Linux) 13 DEFAULT_GW=`netstat -rn | awk '($1 == "0.0.0.0"){print $2}'` 14 ;; 15 esac 16 17 echo $@ 18 echo "LOCAL_ADDR = ${LOCAL_ADDR}" 19 echo "LOCAL_PORT = ${LOCAL_PORT}" 20 echo "REMOTE_ADDR = ${REMOTE_ADDR}" 21 echo "REMOTE_PORT = ${REMOTE_PORT}" 22 echo "DEFAULT_GW = ${DEFAULT_GW}" 23 echo "INTERNAL_ADDR4 = ${INTERNAL_ADDR4}" 24 echo "INTERNAL_DNS4 = ${INTERNAL_DNS4}" 25 26 echo ${INTERNAL_ADDR4} | grep '[0-9]' > /dev/null || exit 0 27 echo ${DEFAULT_GW} | grep '[0-9]' > /dev/null || exit 0 28 29 test -f /etc/resolv.conf.bak || cp /etc/resolv.conf /etc/resolv.conf.bak 30 echo "# Generated by racoon on `date`" > /etc/resolv.conf 31 echo "nameserver ${INTERNAL_DNS4}" >> /etc/resolv.conf 32 33 case `uname -s` in 34 NetBSD) 35 if=`netstat -rn|awk '($1 == "default"){print $7}'` 36 ifconfig ${if} alias ${INTERNAL_ADDR4} netmask ${INTERNAL_NETMASK4} 37 route delete default 38 route add default ${DEFAULT_GW} -ifa ${INTERNAL_ADDR4} 39 route add ${REMOTE_ADDR} ${DEFAULT_GW} 40 ;; 41 Linux) 42 if=`netstat -rn|awk '($1 == "0.0.0.0"){print $8}'` 43 ifconfig ${if}:1 ${INTERNAL_ADDR4} 44 route delete default 45 route add ${REMOTE_ADDR} gw ${DEFAULT_GW} dev ${if} 46 route add default gw ${DEFAULT_GW} dev ${if}:1 47 ;; 48 esac 49 50 # Use this for a NAT-T setup 51 LOCAL="${LOCAL_ADDR}[${LOCAL_PORT}]" 52 REMOTE="${REMOTE_ADDR}[${REMOTE_PORT}]" 53 54 # Use this for a non NAT-T setup 55 #LOCAL="${LOCAL_ADDR}" 56 #REMOTE="${REMOTE_ADDR}" 57 58 59 echo " 60 spdadd ${INTERNAL_ADDR4}/32[any] 0.0.0.0/0[any] any 61 -P out ipsec esp/tunnel/${LOCAL}-${REMOTE}/require; 62 spdadd 0.0.0.0/0[any] ${INTERNAL_ADDR4}[any] any 63 -P in ipsec esp/tunnel/${REMOTE}-${LOCAL}/require; 64 " | setkey -c 65 66 # 67 # XXX This is a workaround for Linux forward policies problem. 68 # Someone familiar with forward policies please fix this properly. 69 # 70 case `uname -s` in 71 Linux) 72 echo " 73 spddelete 0.0.0.0/0[any] ${INTERNAL_ADDR4}[any] any 74 -P fwd ipsec esp/tunnel/${REMOTE}-${LOCAL}/require; 75 " | setkey -c 76 ;; 77 esac 78
