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-rw-r--r--network/dnscrypt-wrapper/rc.dnscrypt-wrapper262
1 files changed, 262 insertions, 0 deletions
diff --git a/network/dnscrypt-wrapper/rc.dnscrypt-wrapper b/network/dnscrypt-wrapper/rc.dnscrypt-wrapper
new file mode 100644
index 0000000000000..4f84021dd32a4
--- /dev/null
+++ b/network/dnscrypt-wrapper/rc.dnscrypt-wrapper
@@ -0,0 +1,262 @@
+#!/bin/bash
+
+CONFIGFILE="/etc/default/dnscrypt-wrapper"
+DAEMON="/usr/bin/dnscrypt-wrapper"
+
+. $CONFIGFILE
+
+start_instance() {
+ if [ -z ${PIDFILE[$1]} ]; then
+ echo "No configuration for instance $1 found!"
+ return
+ fi
+ if [ -r ${PIDFILE[$1]} ]; then
+ PID=$(cat ${PIDFILE[$1]})
+ if [ -z "$PID" ] || ! kill -0 $PID ; then
+ echo "Removing stale PID file..."
+ rm -f ${PIDFILE[$1]}
+ else
+ echo "dnscrypt-wrapper (instance $1) already running!"
+ return
+ fi
+ fi
+
+ # dnscrypt-wrapper will NOT work without this. /dev/urandom is required in
+ # the chroot.
+ if [ -n "${CHROOTDIR[$1]}" ]; then
+ if [ "$(readlink -f ${CHROOTDIR[$1]})" != "/" ]; then
+ if [ ! -d ${CHROOTDIR[$1]} ]; then
+ mkdir -p ${CHROOTDIR[$1]}
+ chmod 755 ${CHROOTDIR[$1]}
+ fi
+ if [ ! -d ${CHROOTDIR[$1]}/dev ]; then
+ mkdir -p ${CHROOTDIR[$1]}/dev
+ chmod 755 ${CHROOTDIR[$1]}/dev
+ fi
+ if [ ! -c ${CHROOTDIR[$1]}/dev/urandom ]; then
+ mknod -m 666 ${CHROOTDIR[$1]}/dev/urandom c 1 9
+ fi
+ fi
+ fi
+
+ OPTIONS="-d"
+ if [ -n "${LISTENADDRESS[$1]}" ]; then
+ OPTIONS="${OPTIONS} --listen-address=${LISTENADDRESS[$1]}"
+ fi
+ if [ -n "${PIDFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --pidfile=${PIDFILE[$1]}"
+ fi
+ if [ -n "${USER[$1]}" ]; then
+ OPTIONS="${OPTIONS} --user=${USER[$1]}"
+ fi
+ if [ -n "${DNSCRYPTDIR[$1]}" ]; then
+ OPTIONS="${OPTIONS} --crypt-publickey-file=${DNSCRYPTDIR[$1]}/crypt_public.key"
+ OPTIONS="${OPTIONS} --crypt-secretkey-file=${DNSCRYPTDIR[$1]}/crypt_secret.key"
+ OPTIONS="${OPTIONS} --provider-publickey-file=${DNSCRYPTDIR[$1]}/public.key"
+ OPTIONS="${OPTIONS} --provider-secretkey-file=${DNSCRYPTDIR[$1]}/secret.key"
+ fi
+ if [ -z "${DNSCRYPTDIR[$1]}" ] && [ -n "${CRYPTPUBLICKEYFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --crypt-publickey-file=${CRYPTPUBLICKEYFILE[$1]}"
+ fi
+ if [ -z "${DNSCRYPTDIR[$1]}" ] && [ -n "${CRYPTSECRETKEYFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --crypt-secretkey-file=${CRYPTSECRETKEYFILE[$1]}"
+ fi
+ if [ -z "${DNSCRYPTDIR[$1]}" ] && [ -n "${PROVIDERPUBLICKEYFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --provider-publickey-file=${PROVIDERPUBLICKEYFILE[$1]}"
+ fi
+ if [ -z "${DNSCRYPTDIR[$1]}" ] && [ -n "${PROVIDERSECRETKEYFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --provider-secretkey-file=${PROVIDERSECRETKEYFILE[$1]}"
+ fi
+ if [ -n "${RESOLVERADDRESS[$1]}" ]; then
+ OPTIONS="${OPTIONS} --resolver-address=${RESOLVERADDRESS[$1]}"
+ fi
+ if [ -n "${PROVIDERNAME[$1]}" ]; then
+ OPTIONS="${OPTIONS} --provider-name=${PROVIDERNAME[$1]}"
+ fi
+ if [ -n "${PROVIDERCERTFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --provider-cert-file=${PROVIDERCERTFILE[$1]}"
+ fi
+ if [ -n "${LOGFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --logfile=${LOGFILE[$1]}"
+ fi
+ $DAEMON $OPTIONS
+}
+
+stop_instance() {
+ if [ -z ${PIDFILE[$1]} ]; then
+ echo "No configuration for instance $1 found!"
+ return
+ fi
+ if [ ! -r ${PIDFILE[$1]} ]; then
+ echo "dnscrypt-wrapper (instance $1) is not running!"
+ return
+ fi
+ echo "Stopping dnscrypt-wrapper (instance $1)..."
+ kill $(cat ${PIDFILE[$1]})
+ rm -f ${PIDFILE[$1]}
+}
+
+status_instance() {
+ if [ -z ${PIDFILE[$1]} ]; then
+ echo "No configuration for instance $1 found!"
+ return
+ fi
+ if [ ! -r ${PIDFILE[$1]} ]; then
+ echo "dnscrypt-wrapper (instance $1) is not running."
+ return
+ fi
+ PID=$(cat ${PIDFILE[$1]})
+ if [ -z "$PID" ]; then
+ echo "PID file is empty! dnscrypt-wrapper (instance $1) does not appear to be running, but there is a stale PID file."
+ elif kill -0 $PID ; then
+ echo "dnscrypt-wrapper (instance $1) is running."
+ else
+ echo "dnscrypt-wrapper (instance $1) is not running, but there is a stale PID file."
+ fi
+}
+
+generate-keys_instance() {
+ if [ -z ${PIDFILE[$1]} ]; then
+ echo "No configuration for instance $1 found!"
+ return
+ fi
+ if [ -z ${DNSCRYPTDIR[$1]} ]; then
+ echo "DNSCRYPTDIR not set for instance $1! Either set DNSCRYPTDIR or generate keys manually."
+ return
+ fi
+ (
+ echo "Generating keys for instance $1. You should record the fingerprint, since this will be used by clients."
+ cd ${DNSCRYPTDIR[$1]}
+ rm -f crypt_secret.key crypt_public.key public.key secret.key
+ $DAEMON --gen-provider-keypair
+ $DAEMON --gen-crypt-keypair
+ chmod 0600 crypt_secret.key crypt_public.key public.key secret.key
+ )
+}
+
+generate-cert_instance() {
+ if [ -z ${PIDFILE[$1]} ]; then
+ echo "No configuration for instance $1 found!"
+ return
+ fi
+ if [ -z ${PROVIDERCERTFILE[$1]} ]; then
+ echo "PROVIDERCERTFILE for instance $1 not set! Set PROVIDERCERTFILE before generating a certificate."
+ return
+ fi
+ OPTIONS=""
+ if [ -n "${DNSCRYPTDIR[$1]}" ]; then
+ OPTIONS="${OPTIONS} --crypt-publickey-file=${DNSCRYPTDIR[$1]}/crypt_public.key"
+ OPTIONS="${OPTIONS} --crypt-secretkey-file=${DNSCRYPTDIR[$1]}/crypt_secret.key"
+ OPTIONS="${OPTIONS} --provider-publickey-file=${DNSCRYPTDIR[$1]}/public.key"
+ OPTIONS="${OPTIONS} --provider-secretkey-file=${DNSCRYPTDIR[$1]}/secret.key"
+ fi
+ if [ -z "${DNSCRYPTDIR[$1]}" ] && [ -n "${CRYPTPUBLICKEYFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --crypt-publickey-file=${CRYPTPUBLICKEYFILE[$1]}"
+ fi
+ if [ -z "${DNSCRYPTDIR[$1]}" ] && [ -n "${CRYPTSECRETKEYFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --crypt-secretkey-file=${CRYPTSECRETKEYFILE[$1]}"
+ fi
+ if [ -z "${DNSCRYPTDIR[$1]}" ] && [ -n "${PROVIDERPUBLICKEYFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --provider-publickey-file=${PROVIDERPUBLICKEYFILE[$1]}"
+ fi
+ if [ -z "${DNSCRYPTDIR[$1]}" ] && [ -n "${PROVIDERSECRETKEYFILE[$1]}" ]; then
+ OPTIONS="${OPTIONS} --provider-secretkey-file=${PROVIDERSECRETKEYFILE[$1]}"
+ fi
+ (
+ echo "Generating certificate for instance $1."
+ mkdir /tmp/dnscrypt-wrapper-$$
+ cd /tmp/dnscrypt-wrapper-$$
+ $DAEMON $OPTIONS --gen-cert-file
+ chmod 0600 dnscrypt.cert
+ mv -f dnscrypt.cert ${PROVIDERCERTFILE[$1]}
+ cd /
+ rmdir /tmp/dnscrypt-wrapper-$$
+ )
+}
+
+start() {
+ for i in `/usr/bin/seq 0 $((${#PIDFILE[@]}-1))`
+ do
+ start_instance $i
+ done
+}
+
+stop() {
+ for i in `/usr/bin/seq 0 $((${#PIDFILE[@]}-1))`
+ do
+ stop_instance $i
+ done
+}
+
+status() {
+ for i in `/usr/bin/seq 0 $((${#PIDFILE[@]}-1))`
+ do
+ status_instance $i
+ done
+}
+
+generate-keys() {
+ for i in `/usr/bin/seq 0 $((${#PIDFILE[@]}-1))`
+ do
+ generate-keys_instance $i
+ done
+}
+
+generate-cert() {
+ for i in `/usr/bin/seq 0 $((${#PIDFILE[@]}-1))`
+ do
+ generate-cert_instance $i
+ done
+}
+
+case "$1" in
+ 'start')
+ start
+ ;;
+ 'stop')
+ stop
+ ;;
+ 'restart')
+ stop
+ start
+ ;;
+ 'status')
+ status
+ ;;
+ 'generate-keys')
+ generate-keys
+ ;;
+ 'generate-cert')
+ generate-cert
+ ;;
+ *_start)
+ INSTANCE=`echo $1 | /bin/cut -d '_' -f 1`
+ start_instance $INSTANCE
+ ;;
+ *_stop)
+ INSTANCE=`echo $1 | /bin/cut -d '_' -f 1`
+ stop_instance $INSTANCE
+ ;;
+ *_restart)
+ INSTANCE=`echo $1 | /bin/cut -d '_' -f 1`
+ stop_instance $INSTANCE
+ sleep 1
+ start_instance $INSTANCE
+ ;;
+ *_status)
+ INSTANCE=`echo $1 | /bin/cut -d '_' -f 1`
+ status_instance $INSTANCE
+ ;;
+ *_generate-keys)
+ INSTANCE=`echo $1 | /bin/cut -d '_' -f 1`
+ generate-keys_instance $INSTANCE
+ ;;
+ *_generate-cert)
+ INSTANCE=`echo $1 | /bin/cut -d '_' -f 1`
+ generate-cert_instance $INSTANCE
+ ;;
+ *)
+ echo "Usage: $0 {start|stop|restart|status|generate-keys|generate-cert|#_start|#_stop|#_restart|#_status|#_generate-keys|#_generate-cert}"
+ exit 1
+ ;;
+esac
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