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-rwxr-xr-xpkg/osx/install/client.up.sh596
1 files changed, 596 insertions, 0 deletions
diff --git a/pkg/osx/install/client.up.sh b/pkg/osx/install/client.up.sh
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+++ 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