diff options
Diffstat (limited to 'pkg/osx/install/client.up.sh')
| -rwxr-xr-x | pkg/osx/install/client.up.sh | 596 |
1 files changed, 596 insertions, 0 deletions
diff --git a/pkg/osx/install/client.up.sh b/pkg/osx/install/client.up.sh new file mode 100755 index 00000000..fc7e341a --- /dev/null +++ b/pkg/osx/install/client.up.sh @@ -0,0 +1,596 @@ +#!/bin/bash -e +# Note: must be bash; uses bash-specific tricks +# +# ****************************************************************************************************************** +# This Tunnelblick script does everything! It handles TUN and TAP interfaces, +# pushed configurations, DHCP with DNS and WINS, and renewed DHCP leases. :) +# +# This is the "Up" version of the script, executed after the interface is +# initialized. +# +# Created by: Nick Williams (using original code and parts of old Tblk scripts) +# +# ****************************************************************************************************************** + +trap "" TSTP +trap "" HUP +trap "" INT +export PATH="/bin:/sbin:/usr/sbin:/usr/bin" + +# Process optional arguments (if any) for the script +# Each one begins with a "-" +# They come from Tunnelblick, and come first, before the OpenVPN arguments +# So we set ARG_ script variables to their values and shift them out of the argument list +# When we're done, only the OpenVPN arguments remain for the rest of the script to use +ARG_MONITOR_NETWORK_CONFIGURATION="false" +ARG_RESTORE_ON_DNS_RESET="false" +ARG_RESTORE_ON_WINS_RESET="false" +ARG_TAP="false" +ARG_IGNORE_OPTION_FLAGS="" + +while [ {$#} ] ; do + if [ "$1" = "-m" ] ; then # Handle the arguments we know about + ARG_MONITOR_NETWORK_CONFIGURATION="true" # by setting ARG_ script variables to their values + shift # Then shift them out + elif [ "$1" = "-d" ] ; then + ARG_RESTORE_ON_DNS_RESET="true" + shift + elif [ "$1" = "-w" ] ; then + ARG_RESTORE_ON_WINS_RESET="true" + shift + elif [ "$1" = "-a" ] ; then + ARG_TAP="true" + shift + elif [ "${1:0:2}" = "-i" ] ; then + ARG_IGNORE_OPTION_FLAGS="${1}" + shift + elif [ "${1:0:2}" = "-a" ] ; then + ARG_IGNORE_OPTION_FLAGS="${1}" + shift + else + if [ "${1:0:1}" = "-" ] ; then # Shift out Tunnelblick arguments (they start with "-") that we don't understand + shift # so the rest of the script sees only the OpenVPN arguments + else + break + fi + fi +done + +readonly ARG_MONITOR_NETWORK_CONFIGURATION ARG_RESTORE_ON_DNS_RESET ARG_RESTORE_ON_WINS_RESET ARG_TAP ARG_IGNORE_OPTION_FLAGS + +# Note: The script log path name is constructed from the path of the regular config file, not the shadow copy +# if the config is shadow copy, e.g. /Library/Application Support/Tunnelblick/Users/Jonathan/Folder/Subfolder/config.ovpn +# then convert to regular config /Users/Jonathan/Library/Application Support/Tunnelblick/Configurations/Folder/Subfolder/config.ovpn +# to get the script log path +# Note: "/Users/..." works even if the home directory has a different path; it is used in the name of the log file, and is not used as a path to get to anything. +readonly TBALTPREFIX="/Library/Application Support/Tunnelblick/Users/" +readonly TBALTPREFIXLEN="${#TBALTPREFIX}" +readonly TBCONFIGSTART="${config:0:$TBALTPREFIXLEN}" +if [ "$TBCONFIGSTART" = "$TBALTPREFIX" ] ; then + readonly TBBASE="${config:$TBALTPREFIXLEN}" + readonly TBSUFFIX="${TBBASE#*/}" + readonly TBUSERNAME="${TBBASE%%/*}" + readonly TBCONFIG="/Users/$TBUSERNAME/Library/Application Support/Tunnelblick/Configurations/$TBSUFFIX" +else + readonly TBCONFIG="${config}" +fi + +readonly CONFIG_PATH_DASHES_SLASHES="$(echo "${TBCONFIG}" | sed -e 's/-/--/g' | sed -e 's/\//-S/g')" +readonly SCRIPT_LOG_FILE="/Library/Application Support/Tunnelblick/Logs/${CONFIG_PATH_DASHES_SLASHES}.script.log" + +readonly TB_RESOURCE_PATH=$(dirname "${0}") + +LEASEWATCHER_PLIST_PATH="/Library/Application Support/Tunnelblick/LeaseWatch.plist" + +readonly OSVER="$(sw_vers | grep 'ProductVersion:' | grep -o '10\.[0-9]*')" + +readonly DEFAULT_DOMAIN_NAME="openvpn" + +bRouteGatewayIsDhcp="false" + +# @param String message - The message to log +readonly LOG_MESSAGE_COMMAND=$(basename "${0}") +logMessage() +{ + echo "$(date '+%a %b %e %T %Y') *Tunnelblick $LOG_MESSAGE_COMMAND: "${@} >> "${SCRIPT_LOG_FILE}" +} + +# @param String string - Content to trim +trim() +{ + echo ${@} +} + +# @param String[] dnsServers - The name servers to use +# @param String domainName - The domain name to use +# @param \optional String[] winsServers - The WINS servers to use +setDnsServersAndDomainName() +{ + declare -a vDNS=("${!1}") + domain=$2 + declare -a vWINS=("${!3}") + + set +e # "grep" will return error status (1) if no matches are found, so don't fail on individual errors + + PSID=$( (scutil | grep PrimaryService | sed -e 's/.*PrimaryService : //')<<- EOF + open + show State:/Network/Global/IPv4 + quit +EOF ) + + STATIC_DNS_CONFIG="$( (scutil | sed -e 's/^[[:space:]]*[[:digit:]]* : //g' | tr '\n' ' ')<<- EOF + open + show Setup:/Network/Service/${PSID}/DNS + quit +EOF )" + if echo "${STATIC_DNS_CONFIG}" | grep -q "ServerAddresses" ; then + readonly STATIC_DNS="$(trim "$( echo "${STATIC_DNS_CONFIG}" | sed -e 's/^.*ServerAddresses[^{]*{[[:space:]]*\([^}]*\)[[:space:]]*}.*$/\1/g' )")" + fi + if echo "${STATIC_DNS_CONFIG}" | grep -q "SearchDomains" ; then + readonly STATIC_SEARCH="$(trim "$( echo "${STATIC_DNS_CONFIG}" | sed -e 's/^.*SearchDomains[^{]*{[[:space:]]*\([^}]*\)[[:space:]]*}.*$/\1/g' )")" + fi + + STATIC_WINS_CONFIG="$( (scutil | sed -e 's/^[[:space:]]*[[:digit:]]* : //g' | tr '\n' ' ')<<- EOF + open + show Setup:/Network/Service/${PSID}/SMB + quit +EOF )" + STATIC_WINS_SERVERS="" + STATIC_WORKGROUP="" + STATIC_NETBIOSNAME="" + if echo "${STATIC_WINS_CONFIG}" | grep -q "WINSAddresses" ; then + STATIC_WINS_SERVERS="$(trim "$( echo "${STATIC_WINS_CONFIG}" | sed -e 's/^.*WINSAddresses[^{]*{[[:space:]]*\([^}]*\)[[:space:]]*}.*$/\1/g' )")" + fi + if echo "${STATIC_WINS_CONFIG}" | grep -q "Workgroup" ; then + STATIC_WORKGROUP="$(trim "$( echo "${STATIC_WINS_CONFIG}" | sed -e 's/^.*Workgroup : \([^[:space:]]*\).*$/\1/g' )")" + fi + if echo "${STATIC_WINS_CONFIG}" | grep -q "NetBIOSName" ; then + STATIC_NETBIOSNAME="$(trim "$( echo "${STATIC_WINS_CONFIG}" | sed -e 's/^.*NetBIOSName : \([^[:space:]]*\).*$/\1/g' )")" + fi + readonly STATIC_WINS_SERVERS STATIC_WORKGROUP STATIC_NETBIOSNAME + + if [ ${#vDNS[*]} -eq 0 ] ; then + DYN_DNS="false" + ALL_DNS="${STATIC_DNS}" + elif [ -n "${STATIC_DNS}" ] ; then + case "${OSVER}" in + 10.6 | 10.7 ) + # Do nothing - in 10.6 we don't aggregate our configurations, apparently + DYN_DNS="false" + ALL_DNS="${STATIC_DNS}" + ;; + 10.4 | 10.5 ) + DYN_DNS="true" + # We need to remove duplicate DNS entries, so that our reference list matches MacOSX's + SDNS="$(echo "${STATIC_DNS}" | tr ' ' '\n')" + (( i=0 )) + for n in "${vDNS[@]}" ; do + if echo "${SDNS}" | grep -q "${n}" ; then + unset vDNS[${i}] + fi + (( i++ )) + done + if [ ${#vDNS[*]} -gt 0 ] ; then + ALL_DNS="$(trim "${STATIC_DNS}" "${vDNS[*]}")" + else + DYN_DNS="false" + ALL_DNS="${STATIC_DNS}" + fi + ;; + esac + else + DYN_DNS="true" + ALL_DNS="$(trim "${vDNS[*]}")" + fi + readonly DYN_DNS ALL_DNS + + if [ ${#vWINS[*]} -eq 0 ] ; then + DYN_WINS="false" + ALL_WINS_SERVERS="${STATIC_WINS_SERVERS}" + elif [ -n "${STATIC_WINS_SERVERS}" ] ; then + case "${OSVER}" in + 10.6 | 10.7 ) + # Do nothing - in 10.6 we don't aggregate our configurations, apparently + DYN_WINS="false" + ALL_WINS_SERVERS="${STATIC_WINS_SERVERS}" + ;; + 10.4 | 10.5 ) + DYN_WINS="true" + # We need to remove duplicate WINS entries, so that our reference list matches MacOSX's + SWINS="$(echo "${STATIC_WINS_SERVERS}" | tr ' ' '\n')" + (( i=0 )) + for n in "${vWINS[@]}" ; do + if echo "${SWINS}" | grep -q "${n}" ; then + unset vWINS[${i}] + fi + (( i++ )) + done + if [ ${#vWINS[*]} -gt 0 ] ; then + ALL_WINS_SERVERS="$(trim "${STATIC_WINS_SERVERS}" "${vWINS[*]}")" + else + DYN_WINS="false" + ALL_WINS_SERVERS="${STATIC_WINS_SERVERS}" + fi + ;; + esac + else + DYN_WINS="true" + ALL_WINS_SERVERS="$(trim "${vWINS[*]}")" + fi + readonly DYN_WINS ALL_WINS_SERVERS + + # We double-check that our search domain isn't already on the list + SEARCH_DOMAIN="${domain}" + case "${OSVER}" in + 10.6 | 10.7 ) + # Do nothing - in 10.6 we don't aggregate our configurations, apparently + if [ -n "${STATIC_SEARCH}" ] ; then + ALL_SEARCH="${STATIC_SEARCH}" + SEARCH_DOMAIN="" + else + ALL_SEARCH="${SEARCH_DOMAIN}" + fi + ;; + 10.4 | 10.5 ) + if echo "${STATIC_SEARCH}" | tr ' ' '\n' | grep -q "${SEARCH_DOMAIN}" ; then + SEARCH_DOMAIN="" + fi + if [ -z "${SEARCH_DOMAIN}" ] ; then + ALL_SEARCH="${STATIC_SEARCH}" + else + ALL_SEARCH="$(trim "${STATIC_SEARCH}" "${SEARCH_DOMAIN}")" + fi + ;; + esac + readonly SEARCH_DOMAIN ALL_SEARCH + + if ! ${DYN_DNS} ; then + NO_DNS="#" + fi + if ! ${DYN_WINS} ; then + NO_WS="#" + fi + if [ -z "${SEARCH_DOMAIN}" ] ; then + NO_SEARCH="#" + fi + if [ -z "${STATIC_WORKGROUP}" ] ; then + NO_WG="#" + fi + if [ -z "${STATIC_NETBIOSNAME}" ] ; then + NO_NB="#" + fi + if [ -z "${ALL_DNS}" ] ; then + AGG_DNS="#" + fi + if [ -z "${ALL_SEARCH}" ] ; then + AGG_SEARCH="#" + fi + if [ -z "${ALL_WINS_SERVERS}" ] ; then + AGG_WINS="#" + fi + + # Now, do the aggregation + # Save the openvpn process ID and the Network Primary Service ID, leasewather.plist path, logfile path, and optional arguments from Tunnelblick, + # then save old and new DNS and WINS settings + # PPID is a bash-script variable that contains the process ID of the parent of the process running the script (i.e., OpenVPN's process ID) + # config is an environmental variable set to the configuration path by OpenVPN prior to running this up script + logMessage "Up to two 'No such key' warnings are normal and may be ignored" + + # If DNS is manually set, it overrides the DHCP setting, which isn't reflected in 'State:/Network/Service/${PSID}/DNS' + if echo "${STATIC_DNS_CONFIG}" | grep -q "ServerAddresses" ; then + CORRECT_OLD_DNS_KEY="Setup:" + else + CORRECT_OLD_DNS_KEY="State:" + fi + + # If WINS is manually set, it overrides the DHCP setting, which isn't reflected in 'State:/Network/Service/${PSID}/DNS' + if echo "${STATIC_WINS_CONFIG}" | grep -q "WINSAddresses" ; then + CORRECT_OLD_WINS_KEY="Setup:" + else + CORRECT_OLD_WINS_KEY="State:" + fi + + # If we are not expecting any WINS value, add <TunnelblickNoSuchKey : true> to the expected WINS setup + NO_NOSUCH_KEY_WINS="#" + if [ "${NO_NB}" = "#" -a "${AGG_WINS}" = "#" -a "${NO_WG}" = "#" ] ; then + NO_NOSUCH_KEY_WINS="" + fi + readonly NO_NOSUCH_KEY_WINS + + set -e # We instruct bash that it CAN again fail on errors + + scutil <<- EOF + open + d.init + d.add PID # ${PPID} + d.add Service ${PSID} + d.add LeaseWatcherPlistPath "${LEASEWATCHER_PLIST_PATH}" + d.add ScriptLogFile "${SCRIPT_LOG_FILE}" + d.add MonitorNetwork "${ARG_MONITOR_NETWORK_CONFIGURATION}" + d.add RestoreOnDNSReset "${ARG_RESTORE_ON_DNS_RESET}" + d.add RestoreOnWINSReset "${ARG_RESTORE_ON_WINS_RESET}" + d.add IgnoreOptionFlags "${ARG_IGNORE_OPTION_FLAGS}" + d.add IsTapInterface "${ARG_TAP}" + d.add RouteGatewayIsDhcp "${bRouteGatewayIsDhcp}" + set State:/Network/OpenVPN + + # First, back up the device's current DNS and WINS configurations + # Indicate 'no such key' by a dictionary with a single entry: "TunnelblickNoSuchKey : true" + d.init + d.add TunnelblickNoSuchKey true + get ${CORRECT_OLD_DNS_KEY}/Network/Service/${PSID}/DNS + set State:/Network/OpenVPN/OldDNS + + d.init + d.add TunnelblickNoSuchKey true + get ${CORRECT_OLD_WINS_KEY}/Network/Service/${PSID}/SMB + set State:/Network/OpenVPN/OldSMB + + # Second, initialize the new DNS map + d.init + ${NO_DNS}d.add ServerAddresses * ${vDNS[*]} + ${NO_SEARCH}d.add SearchDomains * ${SEARCH_DOMAIN} + d.add DomainName ${domain} + set State:/Network/Service/${PSID}/DNS + + # Third, initialize the WINS map + d.init + ${NO_NB}d.add NetBIOSName ${STATIC_NETBIOSNAME} + ${NO_WS}d.add WINSAddresses * ${vWINS[*]} + ${NO_WG}d.add Workgroup ${STATIC_WORKGROUP} + set State:/Network/Service/${PSID}/SMB + + # Now, initialize the maps that will be compared against the system-generated map + # which means that we will have to aggregate configurations of statically-configured + # nameservers, and statically-configured search domains + d.init + ${AGG_DNS}d.add ServerAddresses * ${ALL_DNS} + ${AGG_SEARCH}d.add SearchDomains * ${ALL_SEARCH} + d.add DomainName ${domain} + set State:/Network/OpenVPN/DNS + + d.init + ${NO_NB}d.add NetBIOSName ${STATIC_NETBIOSNAME} + ${AGG_WINS}d.add WINSAddresses * ${ALL_WINS_SERVERS} + ${NO_WG}d.add Workgroup ${STATIC_WORKGROUP} + ${NO_NOSUCH_KEY_WINS}d.add TunnelblickNoSuchKey true + set State:/Network/OpenVPN/SMB + + # We are done + quit +EOF + + logMessage "Saved the DNS and WINS configurations for later use" + + if ${ARG_MONITOR_NETWORK_CONFIGURATION} ; then + if [ "${ARG_IGNORE_OPTION_FLAGS:0:2}" = "-a" ] ; then + # Generate an updated plist with the path for process-network-changes + readonly LEASEWATCHER_TEMPLATE_PATH="$(dirname "${0}")/ProcessNetworkChanges.plist.template" + sed -e "s|\${DIR}|$(dirname "${0}")|g" "${LEASEWATCHER_TEMPLATE_PATH}" > "${LEASEWATCHER_PLIST_PATH}" + launchctl load "${LEASEWATCHER_PLIST_PATH}" + logMessage "Set up to monitor system configuration with process-network-changes" + else + # Generate an updated plist with the path for leasewatch + readonly LEASEWATCHER_TEMPLATE_PATH="$(dirname "${0}")/LeaseWatch.plist.template" + sed -e "s|\${DIR}|$(dirname "${0}")|g" "${LEASEWATCHER_TEMPLATE_PATH}" > "${LEASEWATCHER_PLIST_PATH}" + launchctl load "${LEASEWATCHER_PLIST_PATH}" + logMessage "Set up to monitor system configuration with leasewatch" + fi + fi +} + +configureDhcpDns() +{ + # whilst ipconfig will have created the neccessary Network Service keys, the DNS + # settings won't actually be used by OS X unless the SupplementalMatchDomains key + # is added + # ref. <http://lists.apple.com/archives/Macnetworkprog/2005/Jun/msg00011.html> + # - is there a way to extract the domains from the SC dictionary and re-insert + # as SupplementalMatchDomains? i.e. not requiring the ipconfig domain_name call? + + # - wait until we get a lease before extracting the DNS domain name and merging into SC + # - despite it's name, ipconfig waitall doesn't (but maybe one day it will :-) + ipconfig waitall + + unset test_domain_name + unset test_name_server + + set +e # We instruct bash NOT to exit on individual command errors, because if we need to wait longer these commands will fail + + # usually takes at least a few seconds to get a DHCP lease + sleep 3 + n=0 + while [ -z "$test_domain_name" -a -z "$test_name_server" -a $n -lt 5 ] + do + logMessage "Sleeping for $n seconds to wait for DHCP to finish setup." + sleep $n + n=`expr $n + 1` + + if [ -z "$test_domain_name" ]; then + test_domain_name=`ipconfig getoption $dev domain_name 2>/dev/null` + fi + + if [ -z "$test_name_server" ]; then + test_name_server=`ipconfig getoption $dev domain_name_server 2>/dev/null` + fi + done + + sGetPacketOutput=`ipconfig getpacket $dev` + + set -e # We instruct bash that it CAN again fail on individual errors + + #echo "`date` test_domain_name = $test_domain_name, test_name_server = $test_name_server, sGetPacketOutput = $sGetPacketOutput" + + unset aNameServers + unset aWinsServers + + nNameServerIndex=1 + nWinsServerIndex=1 + + if [ "$sGetPacketOutput" ]; then + sGetPacketOutput_FirstLine=`echo "$sGetPacketOutput"|head -n 1` + #echo $sGetPacketOutput_FirstLine + + if [ "$sGetPacketOutput_FirstLine" == "op = BOOTREPLY" ]; then + set +e # "grep" will return error status (1) if no matches are found, so don't fail on individual errors + + for tNameServer in `echo "$sGetPacketOutput"|grep "domain_name_server"|grep -Eo "\{([0-9\.]+)(, [0-9\.]+)*\}"|grep -Eo "([0-9\.]+)"`; do + aNameServers[nNameServerIndex-1]="$(trim "$tNameServer")" + let nNameServerIndex++ + done + + for tWINSServer in `echo "$sGetPacketOutput"|grep "nb_over_tcpip_name_server"|grep -Eo "\{([0-9\.]+)(, [0-9\.]+)*\}"|grep -Eo "([0-9\.]+)"`; do + aWinsServers[nWinsServerIndex-1]="$(trim "$tWINSServer")" + let nWinsServerIndex++ + done + + sDomainName=`echo "$sGetPacketOutput"|grep "domain_name "|grep -Eo ": [-A-Za-z0-9\-\.]+"|grep -Eo "[-A-Za-z0-9\-\.]+"` + sDomainName="$(trim "$sDomainName")" + + if [ ${#aNameServers[*]} -gt 0 -a "$sDomainName" ]; then + logMessage "Retrieved name server(s) [ ${aNameServers[@]} ], domain name [ $sDomainName ], and WINS server(s) [ ${aWinsServers[@]} ]" + setDnsServersAndDomainName aNameServers[@] "$sDomainName" aWinsServers[@] + return 0 + elif [ ${#aNameServers[*]} -gt 0 ]; then + logMessage "Retrieved name server(s) [ ${aNameServers[@]} ] and WINS server(s) [ ${aWinsServers[@]} ] and using default domain name [ $DEFAULT_DOMAIN_NAME ]" + setDnsServersAndDomainName aNameServers[@] "$DEFAULT_DOMAIN_NAME" aWinsServers[@] + return 0 + else + # Should we return 1 here and indicate an error, or attempt the old method? + logMessage "No useful information extracted from DHCP/BOOTP packet. Attempting legacy configuration." + fi + + set -e # We instruct bash that it CAN again fail on errors + else + # Should we return 1 here and indicate an error, or attempt the old method? + logMessage "No DHCP/BOOTP packet found on interface. Attempting legacy configuration." + fi + fi + + unset sDomainName + unset sNameServer + unset aNameServers + + sDomainName=`ipconfig getoption $dev domain_name 2>/dev/null` + sNameServer=`ipconfig getoption $dev domain_name_server 2>/dev/null` + + sDomainName="$(trim "$sDomainName")" + sNameServer="$(trim "$sNameServer")" + + declare -a aWinsServers=( ) # Declare empty WINS array to avoid any useless error messages + + if [ "$sDomainName" -a "$sNameServer" ]; then + aNameServers[0]=$sNameServer + logMessage "Retrieved name server [ $sNameServer ], domain name [ $sDomainName ], and no WINS servers" + setDnsServersAndDomainName aNameServers[@] "$sDomainName" aWinsServers[@] + elif [ "$sNameServer" ]; then + aNameServers[0]=$sNameServer + logMessage "Retrieved name server [ $sNameServer ] and no WINS servers, and using default domain name [ $DEFAULT_DOMAIN_NAME ]" + setDnsServersAndDomainName aNameServers[@] "$DEFAULT_DOMAIN_NAME" aWinsServers[@] + elif [ "$sDomainName" ]; then + logMessage "WARNING: Retrieved domain name [ $sDomainName ] but no name servers from OpenVPN (DHCP), which is not sufficient to make network/DNS configuration changes." + if ${ARG_MONITOR_NETWORK_CONFIGURATION} ; then + logMessage "Will NOT monitor for other network configuration changes." + fi + else + logMessage "WARNING: No DNS information received from OpenVPN (DHCP), so no network/DNS configuration changes need to be made." + if ${ARG_MONITOR_NETWORK_CONFIGURATION} ; then + logMessage "Will NOT monitor for other network configuration changes." + fi + fi + + return 0 +} + +configureOpenVpnDns() +{ + unset vForOptions + unset vOptions + unset aNameServers + unset aWinsServers + + nOptionIndex=1 + nNameServerIndex=1 + nWinsServerIndex=1 + + while vForOptions=foreign_option_$nOptionIndex; [ -n "${!vForOptions}" ]; do + vOptions[nOptionIndex-1]=${!vForOptions} + case ${vOptions[nOptionIndex-1]} in + *DOMAIN* ) + sDomainName="$(trim "${vOptions[nOptionIndex-1]//dhcp-option DOMAIN /}")" + ;; + *DNS* ) + aNameServers[nNameServerIndex-1]="$(trim "${vOptions[nOptionIndex-1]//dhcp-option DNS /}")" + let nNameServerIndex++ + ;; + *WINS* ) + aWinsServers[nWinsServerIndex-1]="$(trim "${vOptions[nOptionIndex-1]//dhcp-option WINS /}")" + let nWinsServerIndex++ + ;; + * ) + logMessage "Unknown: 'foreign_option_${nOptionIndex}' = '${vOptions[nOptionIndex-1]}'" + ;; + esac + let nOptionIndex++ + done + + if [ ${#aNameServers[*]} -gt 0 -a "$sDomainName" ]; then + logMessage "Retrieved name server(s) [ ${aNameServers[@]} ], domain name [ $sDomainName ], and WINS server(s) [ ${aWinsServers[@]} ]" + setDnsServersAndDomainName aNameServers[@] "$sDomainName" aWinsServers[@] + elif [ ${#aNameServers[*]} -gt 0 ]; then + logMessage "Retrieved name server(s) [ ${aNameServers[@]} ] and WINS server(s) [ ${aWinsServers[@]} ] and using default domain name [ $DEFAULT_DOMAIN_NAME ]" + setDnsServersAndDomainName aNameServers[@] "$DEFAULT_DOMAIN_NAME" aWinsServers[@] + else + # Should we maybe just return 1 here to indicate an error? Does this mean that something bad has happened? + logMessage "No DNS information recieved from OpenVPN, so no network configuration changes need to be made." + if ${ARG_MONITOR_NETWORK_CONFIGURATION} ; then + logMessage "Will NOT monitor for other network configuration changes." + fi + fi + + return 0 +} + +# We sleep here to allow time for OS X to process network settings +sleep 2 + +EXIT_CODE=0 + +if ${ARG_TAP} ; then + # Still need to do: Look for route-gateway dhcp (TAP isn't always DHCP) + bRouteGatewayIsDhcp="false" + if [ -z "${route_vpn_gateway}" -o "$route_vpn_gateway" == "dhcp" -o "$route_vpn_gateway" == "DHCP" ]; then + bRouteGatewayIsDhcp="true" + fi + + if [ "$bRouteGatewayIsDhcp" == "true" ]; then + if [ -z "$dev" ]; then + logMessage "Cannot configure TAP interface for DHCP without \$dev being defined. Exiting." + exit 1 + fi + + ipconfig set "$dev" DHCP + + configureDhcpDns & + elif [ "$foreign_option_1" == "" ]; then + logMessage "No network configuration changes need to be made." + if ${ARG_MONITOR_NETWORK_CONFIGURATION} ; then + logMessage "Will NOT monitor for other network configuration changes." + fi + else + configureOpenVpnDns + EXIT_CODE=$? + fi +else + if [ "$foreign_option_1" == "" ]; then + logMessage "No network configuration changes need to be made." + if ${ARG_MONITOR_NETWORK_CONFIGURATION} ; then + logMessage "Will NOT monitor for other network configuration changes." + fi + else + configureOpenVpnDns + EXIT_CODE=$? + fi +fi + +exit $EXIT_CODE |