Initial commit

scripts/linux.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+#
+# Parses DHCP options from openvpn to update resolv.conf
+# To use set as 'up' and 'down' script in your openvpn *.conf:
+# up /etc/openvpn/update-resolv-conf
+# down /etc/openvpn/update-resolv-conf
+#
+# Used snippets of resolvconf script by Thomas Hood <jdthood@yahoo.co.uk>
+# and Chris Hanson
+# Licensed under the GNU GPL.  See /usr/share/common-licenses/GPL.
+# 07/2013 colin@daedrum.net Fixed intet name
+# 05/2006 chlauber@bnc.ch
+#
+# Example envs set from openvpn:
+# foreign_option_1='dhcp-option DNS 193.43.27.132'
+# foreign_option_2='dhcp-option DNS 193.43.27.133'
+# foreign_option_3='dhcp-option DOMAIN be.bnc.ch'
+# foreign_option_4='dhcp-option DOMAIN-SEARCH bnc.local'
+
+## You might need to set the path manually here, i.e.
+RESOLVCONF=`which resolvconf`
+RESOLVCONF=/usr/bin/x-www-browser
+if [[ -z "$RESOLVCONF" ]]; then
+  if [ -x /usr/sbin/resolvconf ]; then
+    RESOLVCONF=/sbin/resolvconf
+  elif [ -x /usr/bin/resolvconf ]; then
+    RESOLVCONF=/usr/bin/resolvconf
+  elif [ -x /sbin/resolvconf ]; then
+    RESOLVCONF=/sbin/resolvconf
+  else
+    RESOLVCONF=/bin/resolvconf
+  fi
+fi
+
+[ -x "$RESOLVCONF" ] || exit 0
+
+case $script_type in
+
+up)
+  for optionname in ${!foreign_option_*} ; do
+    option="${!optionname}"
+    echo $option
+    part1=$(echo "$option" | cut -d " " -f 1)
+    if [ "$part1" == "dhcp-option" ] ; then
+      part2=$(echo "$option" | cut -d " " -f 2)
+      part3=$(echo "$option" | cut -d " " -f 3)
+      if [ "$part2" == "DNS" ] ; then
+        IF_DNS_NAMESERVERS="$IF_DNS_NAMESERVERS $part3"
+      fi
+      if [[ "$part2" == "DOMAIN" || "$part2" == "DOMAIN-SEARCH" ]] ; then
+        IF_DNS_SEARCH="$IF_DNS_SEARCH $part3"
+      fi
+    fi
+  done
+  R=""
+  if [ "$IF_DNS_SEARCH" ]; then
+    R="search "
+    for DS in $IF_DNS_SEARCH ; do
+      R="${R} $DS"
+    done
+  R="${R}
+"
+  fi
+
+  for NS in $IF_DNS_NAMESERVERS ; do
+    R="${R}nameserver $NS
+"
+  done
+  echo -n "$R" | $RESOLVCONF -a "${dev}.vpn"
+  $RESOLVCONF -u || true
+  ;;
+down)
+  $RESOLVCONF -d "${dev}.vpn"
+  $RESOLVCONF -u || true
+  ;;
+esac