setup-ipsec-vpn/.github/workflows/main.yml

#
# Copyright (C) 2020-2021 Lin Song <linsongui@gmail.com>
#
# This work is licensed under the Creative Commons Attribution-ShareAlike 3.0
# Unported License: http://creativecommons.org/licenses/by-sa/3.0/
#
# Attribution required: please include my name in any derivative and let me
# know how you have improved it!

name: vpn test

on:
  push:
    branches: [master]
    paths:
      - '**.sh'
      - '.github/workflows/main.yml'

jobs:
  shellcheck:
    runs-on: ubuntu-20.04
    if: github.repository_owner == 'hwdsl2'
    steps:
      - uses: actions/checkout@v2
        with:
          persist-credentials: false
      - name: Check
        run: |
          if [ ! -x /usr/bin/shellcheck ]; then
            export DEBIAN_FRONTEND=noninteractive
            sudo apt-get -yqq update
            sudo apt-get -yqq install shellcheck
          fi

          cd "$GITHUB_WORKSPACE"
          pwd
          ls -ld vpnsetup.sh

          export SHELLCHECK_OPTS="-e SC1090,SC1091,SC1117"
          shellcheck --version
          shopt -s globstar
          ls -ld -- **/*.sh
          shellcheck **/*.sh

  check_urls:
    needs: shellcheck
    runs-on: ubuntu-20.04
    if: github.repository_owner == 'hwdsl2'
    steps:
      - uses: actions/checkout@v2
        with:
          persist-credentials: false
      - name: Check
        run: |
          cd "$GITHUB_WORKSPACE"
          mkdir workdir
          cd workdir
          set -ex

          export DEBIAN_FRONTEND=noninteractive
          sudo apt-get -yqq update
          sudo apt-get -yqq install wget curl

          wget_c="wget -t 3 -T 30 -nv -O"
          gh_url="https://github.com/hwdsl2/setup-ipsec-vpn/raw/master"

          $wget_c vpnsetup.sh          https://git.io/vpnsetup
          $wget_c vpnsetup_centos.sh   https://git.io/vpnsetup-centos
          $wget_c vpnsetup_amzn.sh     https://git.io/vpnsetup-amzn
          $wget_c vpnsetup_ubuntu.sh   https://git.io/vpnsetup-ubuntu
          $wget_c vpnsetup_alpine.sh   https://git.io/vpnsetup-alpine
          $wget_c quickstart.sh        https://git.io/vpnquickstart
          $wget_c ikev2setup.sh        https://git.io/ikev2setup
          $wget_c vpnupgrade.sh        https://git.io/vpnupgrade
          $wget_c vpnupgrade_centos.sh https://git.io/vpnupgrade-centos
          $wget_c vpnupgrade_amzn.sh   https://git.io/vpnupgrade-amzn
          $wget_c vpnupgrade_ubuntu.sh https://git.io/vpnupgrade-ubuntu
          $wget_c vpnupgrade_alpine.sh https://git.io/vpnupgrade-alpine

          $wget_c vpnsetup2.sh          "$gh_url/vpnsetup.sh"
          $wget_c vpnsetup_centos2.sh   "$gh_url/vpnsetup_centos.sh"
          $wget_c vpnsetup_amzn2.sh     "$gh_url/vpnsetup_amzn.sh"
          $wget_c vpnsetup_ubuntu2.sh   "$gh_url/vpnsetup_ubuntu.sh"
          $wget_c vpnsetup_alpine2.sh   "$gh_url/vpnsetup_alpine.sh"
          $wget_c quickstart2.sh        "$gh_url/extras/quickstart.sh"
          $wget_c ikev2setup2.sh        "$gh_url/extras/ikev2setup.sh"
          $wget_c vpnupgrade2.sh        "$gh_url/extras/vpnupgrade.sh"
          $wget_c vpnupgrade_centos2.sh "$gh_url/extras/vpnupgrade_centos.sh"
          $wget_c vpnupgrade_amzn2.sh   "$gh_url/extras/vpnupgrade_amzn.sh"
          $wget_c vpnupgrade_ubuntu2.sh "$gh_url/extras/vpnupgrade_ubuntu.sh"
          $wget_c vpnupgrade_alpine2.sh "$gh_url/extras/vpnupgrade_alpine.sh"

          curl -fsSI https://bit.ly/addvpnuser | grep -q 'add_vpn_user.sh'
          curl -fsSI https://bit.ly/delvpnuser | grep -q 'del_vpn_user.sh'
          curl -fsSI https://bit.ly/updatevpnusers | grep -q 'update_vpn_users.sh'

          diff vpnsetup.sh ../vpnsetup.sh
          diff vpnsetup_centos.sh ../vpnsetup_centos.sh
          diff vpnsetup_amzn.sh ../vpnsetup_amzn.sh
          diff vpnsetup_ubuntu.sh ../vpnsetup_ubuntu.sh
          diff vpnsetup_alpine.sh ../vpnsetup_alpine.sh
          diff quickstart.sh ../extras/quickstart.sh
          diff ikev2setup.sh ../extras/ikev2setup.sh
          diff vpnupgrade.sh ../extras/vpnupgrade.sh
          diff vpnupgrade_centos.sh ../extras/vpnupgrade_centos.sh
          diff vpnupgrade_amzn.sh ../extras/vpnupgrade_amzn.sh
          diff vpnupgrade_ubuntu.sh ../extras/vpnupgrade_ubuntu.sh
          diff vpnupgrade_alpine.sh ../extras/vpnupgrade_alpine.sh

          diff vpnsetup2.sh ../vpnsetup.sh
          diff vpnsetup_centos2.sh ../vpnsetup_centos.sh
          diff vpnsetup_amzn2.sh ../vpnsetup_amzn.sh
          diff vpnsetup_ubuntu2.sh ../vpnsetup_ubuntu.sh
          diff vpnsetup_alpine2.sh ../vpnsetup_alpine.sh
          diff quickstart2.sh ../extras/quickstart.sh
          diff ikev2setup2.sh ../extras/ikev2setup.sh
          diff vpnupgrade2.sh ../extras/vpnupgrade.sh
          diff vpnupgrade_centos2.sh ../extras/vpnupgrade_centos.sh
          diff vpnupgrade_amzn2.sh ../extras/vpnupgrade_amzn.sh
          diff vpnupgrade_ubuntu2.sh ../extras/vpnupgrade_ubuntu.sh
          diff vpnupgrade_alpine2.sh ../extras/vpnupgrade_alpine.sh

  test_set_1:
    needs: [shellcheck, check_urls]
    runs-on: ubuntu-20.04
    if: github.repository_owner == 'hwdsl2'
    strategy:
      matrix:
        os_version: ["centos:8", "centos:8s", "centos:7", "rockylinux:8", "almalinux:8", "amazonlinux:2"]
      fail-fast: false
    env:
      OS_VERSION: ${{ matrix.os_version }}
    steps:
      - name: Build
        run: |
          mkdir -p "$GITHUB_WORKSPACE/testing/${OS_VERSION//:}"
          cd "$GITHUB_WORKSPACE/testing/${OS_VERSION//:}"

          cat > run.sh <<'EOF'
          #!/bin/bash
          set -eEx

          log1=/var/log/secure
          log2=/var/log/messages

          trap 'catch $? $LINENO' ERR

          catch() {
            echo "Error $1 occurred on line $2."
            cat -n -- "$0" | tail -n+"$(($2 - 3))" | head -n7
            exit 1
          }

          restart_ipsec() {
            if ! command -v amazon-linux-extras; then
              systemctl restart ipsec
            fi
            echo "Waiting for IPsec to restart."
            count=0
            while ! grep -q "pluto\[$(cat /var/run/pluto/pluto.pid)\]: listening for IKE messages" "$log1"; do
              [ "$count" -ge "30" ] && { echo "IPsec failed to start."; exit 1; }
              count=$((count+1))
              printf '%s' '.'
              sleep 0.5
            done
            echo
          }

          restart_fail2ban() {
            rm -f /var/log/fail2ban.log
            systemctl restart fail2ban
            echo "Waiting for Fail2ban to restart."
            count=0
            while ! grep -qs -E "Jail '(sshd?|ssh-iptables)' started" /var/log/fail2ban.log; do
              [ "$count" -ge "30" ] && { echo "Fail2ban failed to start."; exit 1; }
              count=$((count+1))
              printf '%s' '.'
              sleep 0.5
            done
            echo
          }

          yum -y -q update
          yum -y -q install wget rsyslog
          systemctl start rsyslog

          wget -t 3 -T 30 -nv -O vpnsetup.sh https://git.io/vpnsetup
          sed -i '/curl /a sed -i "/swan_ver_latest=/s/^/#/" "$tmpdir/vpn.sh"' vpnsetup.sh

          sh vpnsetup.sh

          systemctl start xl2tpd
          restart_ipsec
          restart_fail2ban
          cat /var/log/fail2ban.log

          netstat -anpu | grep pluto
          netstat -anpu | grep xl2tpd
          iptables -nvL
          iptables -nvL | grep -q 'ppp+'
          iptables -nvL | grep -q '192\.168\.43\.0/24'
          iptables -nvL -t nat
          iptables -nvL -t nat | grep -q '192\.168\.42\.0/24'
          iptables -nvL -t nat | grep -q '192\.168\.43\.0/24'
          grep pluto "$log1"
          grep xl2tpd "$log2"
          ipsec status
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk

          ls -l /usr/bin/ikev2.sh
          ls -l /opt/src/ikev2.sh

          wget -t 3 -T 30 -nv -O vpnunst.sh https://git.io/vpnuninstall
          bash vpnunst.sh <<ANSWERS
          y
          ANSWERS
          if grep -qi stream /etc/redhat-release; then
            mkdir /etc/xl2tpd
          fi

          wget -t 3 -T 30 -nv -O quickstart.sh https://git.io/vpnquickstart
          sed -i -e '/curl /a sed -i "/swan_ver_latest=/s/^/#/" "$tmpdir/vpn.sh"' \
            -e '/sleep 1/a sed -i "/swan_ver_latest=/s/^/#/" /opt/src/ikev2.sh' quickstart.sh

          sh quickstart.sh

          systemctl restart xl2tpd
          restart_ipsec
          restart_fail2ban
          cat /var/log/fail2ban.log

          netstat -anpu | grep pluto
          netstat -anpu | grep xl2tpd
          iptables -nvL
          iptables -nvL | grep -q 'ppp+'
          iptables -nvL | grep -q '192\.168\.43\.0/24'
          iptables -nvL -t nat
          iptables -nvL -t nat | grep -q '192\.168\.42\.0/24'
          iptables -nvL -t nat | grep -q '192\.168\.43\.0/24'
          ipsec status
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk
          ipsec status | grep -q ikev2-cp

          ls -ld /etc/ipsec.d/vpnclient.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient.sswan
          ls -ld /etc/ipsec.d/vpnclient.p12

          ls -l /usr/bin/ikev2.sh
          ls -l /opt/src/ikev2.sh

          bash vpnunst.sh <<ANSWERS
          y
          ANSWERS
          if grep -qi stream /etc/redhat-release; then
            mkdir /etc/xl2tpd
          fi

          if [ "$1" != "amazon" ]; then
            wget -t 3 -T 30 -nv -O vpnsetup.sh https://git.io/vpnsetup-centos
          else
            wget -t 3 -T 30 -nv -O vpnsetup.sh https://git.io/vpnsetup-amzn
          fi
          sed -i '/swan_ver_latest=/s/^/#/' vpnsetup.sh

          VPN_IPSEC_PSK='your_ipsec_pre_shared_key' \
          VPN_USER='your_vpn_username' \
          VPN_PASSWORD='your_vpn_password' \
          VPN_DNS_SRV1='1.1.1.1' \
          VPN_DNS_SRV2='1.0.0.1' \
          bash vpnsetup.sh

          restart_ipsec
          grep -q "your_ipsec_pre_shared_key" /etc/ipsec.secrets
          grep -q "your_vpn_username" /etc/ppp/chap-secrets
          grep -q "your_vpn_password" /etc/ppp/chap-secrets
          grep -q "your_vpn_username" /etc/ipsec.d/passwd
          grep -q 'modecfgdns="1.1.1.1 1.0.0.1"' /etc/ipsec.conf
          grep -q 'ms-dns 1.1.1.1' /etc/ppp/options.xl2tpd
          grep -q 'ms-dns 1.0.0.1' /etc/ppp/options.xl2tpd

          wget -t 3 -T 30 -nv -O ikev2.sh https://git.io/ikev2setup # hwdsl2
          sed -i '/swan_ver_latest=/s/^/#/' ikev2.sh

          bash ikev2.sh <<ANSWERS





          y
          ANSWERS

          grep -q 'modecfgdns="8.8.8.8 8.8.4.4"' /etc/ipsec.d/ikev2.conf
          ls -ld /etc/ipsec.d/vpnclient.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient.sswan
          ls -ld /etc/ipsec.d/vpnclient.p12

          restart_ipsec
          grep pluto "$log1" | tail -n 20
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh <<ANSWERS
          1
          invalidclient:
          vpnclient
          vpnclient2

          ANSWERS

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          rm -f /etc/ipsec.d/vpnclient2*
          bash ikev2.sh <<ANSWERS
          2
          nonexistclient
          vpnclient2
          ANSWERS

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          bash ikev2.sh <<ANSWERS
          3
          ANSWERS

          bash ikev2.sh <<ANSWERS
          4
          nonexistclient
          vpnclient2
          y
          ANSWERS

          bash ikev2.sh <<ANSWERS 2>&1 | grep -i "abort"
          4
          vpnclient2

          ANSWERS

          bash ikev2.sh <<ANSWERS 2>&1 | grep -i "abort"
          2
          vpnclient2

          ANSWERS

          bash ikev2.sh <<ANSWERS
          100
          6
          ANSWERS

          bash ikev2.sh <<ANSWERS 2>&1 | grep -i "abort"
          5

          ANSWERS

          bash ikev2.sh <<ANSWERS
          5
          y
          ANSWERS

          restart_ipsec
          ls -ld /etc/ipsec.d/ikev2.conf && exit 1
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk
          ipsec status | grep -q ikev2-cp && exit 1
          certutil -L -d sql:/etc/ipsec.d

          rm -f /etc/ipsec.d/vpnclient*

          VPN_DNS_SRV1=invaliddns \
          bash ikev2.sh --auto 2>&1 | grep -i "invalid"

          sed -i '/^include /d' /etc/ipsec.conf

          VPN_CLIENT_NAME=vpnclient1 \
          VPN_DNS_NAME=vpn.example.com \
          VPN_DNS_SRV1=1.1.1.1 \
          VPN_DNS_SRV2=1.0.0.1 \
          bash ikev2.sh --auto

          grep -q 'leftid=@vpn.example.com' /etc/ipsec.d/ikev2.conf
          grep -q 'modecfgdns="1.1.1.1 1.0.0.1"' /etc/ipsec.d/ikev2.conf
          ls -ld /etc/ipsec.d/vpnclient1.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient1.sswan
          ls -ld /etc/ipsec.d/vpnclient1.p12
          grep -q 'vpn.example.com' /etc/ipsec.d/vpnclient1.mobileconfig
          grep -q 'vpn.example.com' /etc/ipsec.d/vpnclient1.sswan

          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --auto --addclient invalidclient: 2>&1 | grep -i "warning"
          bash ikev2.sh --addclient invalidclient: 2>&1 | grep -i "invalid"
          bash ikev2.sh --addclient vpnclient1 2>&1 | grep -i "already exists"

          bash ikev2.sh --addclient vpnclient2

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          bash ikev2.sh --exportclient nonexistclient 2>&1 | grep -i "does not exist"

          rm -f /etc/ipsec.d/vpnclient2*
          bash ikev2.sh --exportclient vpnclient2

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          bash ikev2.sh --addclient vpnclient2 --exportclient vpnclient2 2>&1 | grep -i "invalid"

          bash ikev2.sh --listclients | grep "vpnclient1"
          bash ikev2.sh --listclients | grep "vpnclient2"

          bash ikev2.sh --revokeclient nonexistclient 2>&1 | grep -i "does not exist"
          bash ikev2.sh --revokeclient vpnclient2 <<ANSWERS
          y
          ANSWERS

          bash ikev2.sh --revokeclient vpnclient2 2>&1 | grep -i "already been revoked"
          bash ikev2.sh --exportclient vpnclient2 2>&1 | grep -i "revoked"
          bash ikev2.sh -h 2>&1 | grep -i "usage:"
          bash ikev2.sh --invalidoption 2>&1 | grep -i "usage:"

          bash ikev2.sh --removeikev2 --exportclient vpnclient1 2>&1 | grep -i "invalid"
          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          bash ikev2.sh <<ANSWERS
          y
          invalidfqdn
          vpn.example.com


          y
          invaliddns
          1.1.1.1
          invaliddns
          1.0.0.1
          y
          ANSWERS

          grep -q 'leftid=@vpn.example.com' /etc/ipsec.d/ikev2.conf
          grep -q 'modecfgdns="1.1.1.1 1.0.0.1"' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          bash ikev2.sh <<ANSWERS

          invalidip
          1.2.3.4
          invalidclient:
          vpnclient1
          1000
          12
          y
          1.1.1.1

          y
          ANSWERS

          grep -q 'leftid=1.2.3.4' /etc/ipsec.d/ikev2.conf
          grep -q 'modecfgdns=1.1.1.1' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          VPN_DNS_SRV1=1.1.1.1 \
          bash ikev2.sh --auto

          grep -q 'modecfgdns=1.1.1.1' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          bash ikev2.sh --auto

          grep -q 'modecfgdns="8.8.8.8 8.8.4.4"' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          wget -t 3 -T 30 -nv -O vpnup.sh https://git.io/vpnupgrade
          sed -i '/curl /a sed -i "/swan_ver_latest=/s/^/#/" "$tmpdir/vpnup.sh"' vpnup.sh

          for ver in 3.32 4.1 4.2; do
            sed -i "s/^SWAN_VER=.*/SWAN_VER=$ver/" vpnup.sh
          bash vpnup.sh <<ANSWERS
          y
          ANSWERS
            restart_ipsec
            ipsec --version | grep "$ver"
            ipsec status | grep -q l2tp-psk
            ipsec status | grep -q xauth-psk
            ipsec status | grep -q ikev2-cp
          done

          if [ "$1" != "amazon" ]; then
            wget -t 3 -T 30 -nv -O vpnup.sh https://git.io/vpnupgrade-centos
          else
            wget -t 3 -T 30 -nv -O vpnup.sh https://git.io/vpnupgrade-amzn
          fi
          sed -i '/swan_ver_latest=/s/^/#/' vpnup.sh

          for ver in 4.3 4.4 4.5; do
            [ "$ver" = "4.3" ] && shc=sh || shc=bash
            sed -i "s/^SWAN_VER=.*/SWAN_VER=$ver/" vpnup.sh
          "$shc" vpnup.sh <<ANSWERS
          y
          ANSWERS
            restart_ipsec
            ipsec --version | grep "$ver"
            ipsec status | grep -q l2tp-psk
            ipsec status | grep -q xauth-psk
            ipsec status | grep -q ikev2-cp
          done

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          ls -ld /etc/ipsec.d/ikev2.conf && exit 1
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk
          ipsec status | grep -q ikev2-cp && exit 1
          certutil -L -d sql:/etc/ipsec.d

          ls -ld vpnsetup.sh
          ls -ld ikev2.sh
          ls -ld vpnup.sh

          exit 0
          EOF

          if [ "$OS_VERSION" = "centos:8s" ]; then
            echo "FROM quay.io/centos/centos:stream8" > Dockerfile
          elif [ "$OS_VERSION" = "rockylinux:8" ]; then
            echo "FROM rockylinux/rockylinux:8" > Dockerfile
          else
            echo "FROM $OS_VERSION" > Dockerfile
          fi

          cat >> Dockerfile <<'EOF'

          ENV container docker
          WORKDIR /opt/src

          RUN if command -v amazon-linux-extras; then amazon-linux-extras install -y kernel-ng; fi

          RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ "$i" = \
          systemd-tmpfiles-setup.service ] || rm -f "$i"; done); \
          rm -f /lib/systemd/system/multi-user.target.wants/*; \
          rm -f /etc/systemd/system/*.wants/*; \
          rm -f /lib/systemd/system/local-fs.target.wants/*; \
          rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
          rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
          rm -f /lib/systemd/system/basic.target.wants/*; \
          rm -f /lib/systemd/system/anaconda.target.wants/*;

          COPY ./run.sh /opt/src/run.sh
          RUN chmod 755 /opt/src/run.sh

          VOLUME [ "/sys/fs/cgroup" ]

          CMD ["/sbin/init"]
          EOF
          cat Dockerfile
          cat run.sh
          docker build -t "${OS_VERSION//:}-test" .

      - name: Test
        run: |
          docker run -d --name "${OS_VERSION//:}-test-1" -v /sys/fs/cgroup:/sys/fs/cgroup:ro \
            --privileged "${OS_VERSION//:}-test"
          sleep 5
          docker exec "${OS_VERSION//:}-test-1" /opt/src/run.sh "${OS_VERSION::6}"

      - name: Clear
        if: always()
        run: |
          rm -rf "$GITHUB_WORKSPACE/testing/${OS_VERSION//:}"
          docker rm -f "${OS_VERSION//:}-test-1" || true
          docker rmi "${OS_VERSION//:}-test" || true

  test_set_2:
    needs: [shellcheck, check_urls]
    runs-on: ubuntu-20.04
    if: github.repository_owner == 'hwdsl2'
    strategy:
      matrix:
        os_version: ["ubuntu:20.04", "ubuntu:18.04", "debian:11", "debian:10", "debian:9"]
      fail-fast: false
    container:
      image: ${{ matrix.os_version }}
      options: --cap-add=NET_ADMIN --device=/dev/ppp
    steps:
      - name: Test
        run: |
          set -ex

          log1=/var/log/auth.log
          log2=/var/log/syslog

          restart_ipsec() {
            echo "Waiting for IPsec to restart."
            count=0
            while ! grep -q "pluto\[$(cat /var/run/pluto/pluto.pid)\]: listening for IKE messages" "$log1"; do
              [ "$count" -ge "30" ] && { echo "IPsec failed to start."; exit 1; }
              count=$((count+1))
              printf '%s' '.'
              sleep 0.5
            done
            echo
          }

          restart_fail2ban() {
            rm -f /var/log/fail2ban.log
            service fail2ban restart
            echo "Waiting for Fail2ban to restart."
            count=0
            while ! grep -qs -E "Jail '(sshd?|ssh-iptables)' started" /var/log/fail2ban.log; do
              [ "$count" -ge "30" ] && { echo "Fail2ban failed to start."; exit 1; }
              count=$((count+1))
              printf '%s' '.'
              sleep 0.5
            done
            echo
          }

          mkdir -p /opt/src
          cd /opt/src
          echo "# hwdsl2" > run.sh

          export DEBIAN_FRONTEND=noninteractive
          apt-get -yqq update
          apt-get -yqq dist-upgrade
          apt-get -yqq install wget rsyslog
          service rsyslog start

          wget -t 3 -T 30 -nv -O vpnsetup.sh https://git.io/vpnsetup
          sed -i '/curl /a sed -i "/swan_ver_latest=/s/^/#/" "$tmpdir/vpn.sh"' vpnsetup.sh

          sh vpnsetup.sh

          restart_ipsec
          restart_fail2ban
          cat /var/log/fail2ban.log

          netstat -anpu | grep pluto
          netstat -anpu | grep xl2tpd
          iptables -nvL
          iptables -nvL | grep -q 'ppp+'
          iptables -nvL | grep -q '192\.168\.43\.0/24'
          iptables -nvL -t nat
          iptables -nvL -t nat | grep -q '192\.168\.42\.0/24'
          iptables -nvL -t nat | grep -q '192\.168\.43\.0/24'
          grep pluto "$log1"
          grep xl2tpd "$log2"
          ipsec status
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk

          ls -l /usr/bin/ikev2.sh
          ls -l /opt/src/ikev2.sh

          wget -t 3 -T 30 -nv -O vpnunst.sh https://git.io/vpnuninstall
          bash vpnunst.sh <<ANSWERS
          y
          ANSWERS

          wget -t 3 -T 30 -nv -O quickstart.sh https://git.io/vpnquickstart
          sed -i -e '/curl /a sed -i "/swan_ver_latest=/s/^/#/" "$tmpdir/vpn.sh"' \
            -e '/sleep 1/a sed -i "/swan_ver_latest=/s/^/#/" /opt/src/ikev2.sh' quickstart.sh

          sh quickstart.sh

          restart_ipsec
          restart_fail2ban
          cat /var/log/fail2ban.log

          netstat -anpu | grep pluto
          netstat -anpu | grep xl2tpd
          iptables -nvL
          iptables -nvL | grep -q 'ppp+'
          iptables -nvL | grep -q '192\.168\.43\.0/24'
          iptables -nvL -t nat
          iptables -nvL -t nat | grep -q '192\.168\.42\.0/24'
          iptables -nvL -t nat | grep -q '192\.168\.43\.0/24'
          ipsec status
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk
          ipsec status | grep -q ikev2-cp

          ls -ld /etc/ipsec.d/vpnclient.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient.sswan
          ls -ld /etc/ipsec.d/vpnclient.p12

          ls -l /usr/bin/ikev2.sh
          ls -l /opt/src/ikev2.sh

          bash vpnunst.sh <<ANSWERS
          y
          ANSWERS

          wget -t 3 -T 30 -nv -O vpnsetup.sh https://git.io/vpnsetup-ubuntu
          sed -i '/swan_ver_latest=/s/^/#/' vpnsetup.sh

          VPN_IPSEC_PSK='your_ipsec_pre_shared_key' \
          VPN_USER='your_vpn_username' \
          VPN_PASSWORD='your_vpn_password' \
          VPN_DNS_SRV1='1.1.1.1' \
          VPN_DNS_SRV2='1.0.0.1' \
          bash vpnsetup.sh

          restart_ipsec
          grep -q "your_ipsec_pre_shared_key" /etc/ipsec.secrets
          grep -q "your_vpn_username" /etc/ppp/chap-secrets
          grep -q "your_vpn_password" /etc/ppp/chap-secrets
          grep -q "your_vpn_username" /etc/ipsec.d/passwd
          grep -q 'modecfgdns="1.1.1.1 1.0.0.1"' /etc/ipsec.conf
          grep -q 'ms-dns 1.1.1.1' /etc/ppp/options.xl2tpd
          grep -q 'ms-dns 1.0.0.1' /etc/ppp/options.xl2tpd

          wget -t 3 -T 30 -nv -O ikev2.sh https://git.io/ikev2setup
          sed -i '/swan_ver_latest=/s/^/#/' ikev2.sh

          bash ikev2.sh <<ANSWERS





          y
          ANSWERS

          grep -q 'modecfgdns="8.8.8.8 8.8.4.4"' /etc/ipsec.d/ikev2.conf
          ls -ld /etc/ipsec.d/vpnclient.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient.sswan
          ls -ld /etc/ipsec.d/vpnclient.p12

          restart_ipsec
          grep pluto "$log1" | tail -n 20
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh <<ANSWERS
          1
          invalidclient:
          vpnclient
          vpnclient2

          ANSWERS

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          rm -f /etc/ipsec.d/vpnclient2*
          bash ikev2.sh <<ANSWERS
          2
          nonexistclient
          vpnclient2
          ANSWERS

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          bash ikev2.sh <<ANSWERS
          3
          ANSWERS

          bash ikev2.sh <<ANSWERS
          4
          nonexistclient
          vpnclient2
          y
          ANSWERS

          bash ikev2.sh <<ANSWERS 2>&1 | grep -i "abort"
          4
          vpnclient2

          ANSWERS

          bash ikev2.sh <<ANSWERS 2>&1 | grep -i "abort"
          2
          vpnclient2

          ANSWERS

          bash ikev2.sh <<ANSWERS
          100
          6
          ANSWERS

          bash ikev2.sh <<ANSWERS 2>&1 | grep -i "abort"
          5

          ANSWERS

          bash ikev2.sh <<ANSWERS
          5
          y
          ANSWERS

          restart_ipsec
          ls -ld /etc/ipsec.d/ikev2.conf && exit 1
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk
          ipsec status | grep -q ikev2-cp && exit 1
          certutil -L -d sql:/etc/ipsec.d

          rm -f /etc/ipsec.d/vpnclient*

          VPN_DNS_SRV1=invaliddns \
          bash ikev2.sh --auto 2>&1 | grep -i "invalid"

          apt-get -yqq remove uuid-runtime
          sed -i '/^include /d' /etc/ipsec.conf

          VPN_CLIENT_NAME=vpnclient1 \
          VPN_DNS_NAME=vpn.example.com \
          VPN_DNS_SRV1=1.1.1.1 \
          VPN_DNS_SRV2=1.0.0.1 \
          bash ikev2.sh --auto

          grep -q 'leftid=@vpn.example.com' /etc/ipsec.d/ikev2.conf
          grep -q 'modecfgdns="1.1.1.1 1.0.0.1"' /etc/ipsec.d/ikev2.conf
          ls -ld /etc/ipsec.d/vpnclient1.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient1.sswan
          ls -ld /etc/ipsec.d/vpnclient1.p12
          grep -q 'vpn.example.com' /etc/ipsec.d/vpnclient1.mobileconfig
          grep -q 'vpn.example.com' /etc/ipsec.d/vpnclient1.sswan

          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --auto --addclient invalidclient: 2>&1 | grep -i "warning"
          bash ikev2.sh --addclient invalidclient: 2>&1 | grep -i "invalid"
          bash ikev2.sh --addclient vpnclient1 2>&1 | grep -i "already exists"

          bash ikev2.sh --addclient vpnclient2

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          bash ikev2.sh --exportclient nonexistclient 2>&1 | grep -i "does not exist"

          rm -f /etc/ipsec.d/vpnclient2*
          bash ikev2.sh --exportclient vpnclient2

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          bash ikev2.sh --addclient vpnclient2 --exportclient vpnclient2 2>&1 | grep -i "invalid"

          bash ikev2.sh --listclients | grep "vpnclient1"
          bash ikev2.sh --listclients | grep "vpnclient2"

          bash ikev2.sh --revokeclient nonexistclient 2>&1 | grep -i "does not exist"
          bash ikev2.sh --revokeclient vpnclient2 <<ANSWERS
          y
          ANSWERS

          bash ikev2.sh --revokeclient vpnclient2 2>&1 | grep -i "already been revoked"
          bash ikev2.sh --exportclient vpnclient2 2>&1 | grep -i "revoked"
          bash ikev2.sh -h 2>&1 | grep -i "usage:"
          bash ikev2.sh --invalidoption 2>&1 | grep -i "usage:"

          bash ikev2.sh --removeikev2 --exportclient vpnclient1 2>&1 | grep -i "invalid"
          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          bash ikev2.sh <<ANSWERS
          y
          invalidfqdn
          vpn.example.com


          y
          invaliddns
          1.1.1.1
          invaliddns
          1.0.0.1
          y
          ANSWERS

          grep -q 'leftid=@vpn.example.com' /etc/ipsec.d/ikev2.conf
          grep -q 'modecfgdns="1.1.1.1 1.0.0.1"' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          bash ikev2.sh <<ANSWERS

          invalidip
          1.2.3.4
          invalidclient:
          vpnclient1
          1000
          12
          y
          1.1.1.1

          y
          ANSWERS

          grep -q 'leftid=1.2.3.4' /etc/ipsec.d/ikev2.conf
          grep -q 'modecfgdns=1.1.1.1' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          VPN_DNS_SRV1=1.1.1.1 \
          bash ikev2.sh --auto

          grep -q 'modecfgdns=1.1.1.1' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          bash ikev2.sh --auto

          grep -q 'modecfgdns="8.8.8.8 8.8.4.4"' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          wget -t 3 -T 30 -nv -O vpnup.sh https://git.io/vpnupgrade
          sed -i '/curl /a sed -i "/swan_ver_latest=/s/^/#/" "$tmpdir/vpnup.sh"' vpnup.sh

          os_ver=$(sed 's/\..*//' /etc/debian_version | tr -dc 'A-Za-z0-9')
          for ver in 3.32 4.1 4.2; do
            [ "$ver" = "3.32" ] && [ "$os_ver" = "11" ] && continue
            sed -i "s/^SWAN_VER=.*/SWAN_VER=$ver/" vpnup.sh
          bash vpnup.sh <<ANSWERS
          y
          ANSWERS
            restart_ipsec
            ipsec --version | grep "$ver"
            ipsec status | grep -q l2tp-psk
            ipsec status | grep -q xauth-psk
            ipsec status | grep -q ikev2-cp
          done

          wget -t 3 -T 30 -nv -O vpnup.sh https://git.io/vpnupgrade-ubuntu
          sed -i '/swan_ver_latest=/s/^/#/' vpnup.sh

          for ver in 4.3 4.4 4.5; do
            [ "$ver" = "4.3" ] && shc=sh || shc=bash
            sed -i "s/^SWAN_VER=.*/SWAN_VER=$ver/" vpnup.sh
          "$shc" vpnup.sh <<ANSWERS
          y
          ANSWERS
            restart_ipsec
            ipsec --version | grep "$ver"
            ipsec status | grep -q l2tp-psk
            ipsec status | grep -q xauth-psk
            ipsec status | grep -q ikev2-cp
          done

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          ls -ld /etc/ipsec.d/ikev2.conf && exit 1
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk
          ipsec status | grep -q ikev2-cp && exit 1
          certutil -L -d sql:/etc/ipsec.d

          ls -ld vpnsetup.sh
          ls -ld ikev2.sh
          ls -ld vpnup.sh

  test_set_3:
    needs: [shellcheck, check_urls]
    runs-on: ubuntu-20.04
    if: github.repository_owner == 'hwdsl2'
    strategy:
      matrix:
        os_version: ["alpine:3.14"]
      fail-fast: false
    container:
      image: ${{ matrix.os_version }}
      options: --cap-add=NET_ADMIN --device=/dev/ppp
    steps:
      - name: Test
        run: |
          set -ex

          log1=/var/log/auth.log
          log2=/var/log/messages

          restart_ipsec() {
            ipsec whack --shutdown || true
            ipsec pluto --config /etc/ipsec.conf
            echo "Waiting for IPsec to restart."
            count=0
            while ! grep -q "pluto\[$(cat /var/run/pluto/pluto.pid)\]: listening for IKE messages" "$log1"; do
              [ "$count" -ge "30" ] && { echo "IPsec failed to start."; exit 1; }
              count=$((count+1))
              printf '%s' '.'
              sleep 0.5
            done
            echo
          }

          mkdir -p /opt/src
          cd /opt/src
          echo "# hwdsl2" > run.sh

          apk add -U wget rsyslog
          rsyslogd

          wget -t 3 -T 30 -nv -O vpnsetup.sh https://git.io/vpnsetup
          sed -i '/curl /a sed -i "/swan_ver_latest=/s/^/#/" "$tmpdir/vpn.sh"' vpnsetup.sh

          sh vpnsetup.sh

          ipsec initnss
          xl2tpd -c /etc/xl2tpd/xl2tpd.conf
          restart_ipsec

          netstat -anpu | grep pluto
          netstat -anpu | grep xl2tpd
          iptables -nvL
          iptables -nvL | grep -q 'ppp+'
          iptables -nvL | grep -q '192\.168\.43\.0/24'
          iptables -nvL -t nat
          iptables -nvL -t nat | grep -q '192\.168\.42\.0/24'
          iptables -nvL -t nat | grep -q '192\.168\.43\.0/24'
          grep pluto "$log1"
          grep xl2tpd "$log2"
          ipsec status
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk

          ls -l /usr/bin/ikev2.sh
          ls -l /opt/src/ikev2.sh

          wget -t 3 -T 30 -nv -O vpnunst.sh https://git.io/vpnuninstall
          bash vpnunst.sh <<ANSWERS
          y
          ANSWERS
          killall pluto || true
          killall xl2tpd || true

          wget -t 3 -T 30 -nv -O quickstart.sh https://git.io/vpnquickstart
          sed -i -e '/curl /a sed -i "/swan_ver_latest=/s/^/#/" "$tmpdir/vpn.sh"' \
            -e '/sleep 1/a sed -i "/swan_ver_latest=/s/^/#/" /opt/src/ikev2.sh' quickstart.sh

          sh quickstart.sh

          xl2tpd -c /etc/xl2tpd/xl2tpd.conf
          restart_ipsec

          netstat -anpu | grep pluto
          netstat -anpu | grep xl2tpd
          iptables -nvL
          iptables -nvL | grep -q 'ppp+'
          iptables -nvL | grep -q '192\.168\.43\.0/24'
          iptables -nvL -t nat
          iptables -nvL -t nat | grep -q '192\.168\.42\.0/24'
          iptables -nvL -t nat | grep -q '192\.168\.43\.0/24'
          ipsec status
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk
          ipsec status | grep -q ikev2-cp

          ls -ld /etc/ipsec.d/vpnclient.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient.sswan
          ls -ld /etc/ipsec.d/vpnclient.p12

          ls -l /usr/bin/ikev2.sh
          ls -l /opt/src/ikev2.sh

          bash vpnunst.sh <<ANSWERS
          y
          ANSWERS
          killall pluto || true
          killall xl2tpd || true

          wget -t 3 -T 30 -nv -O vpnsetup.sh https://git.io/vpnsetup-alpine
          sed -i '/swan_ver_latest=/s/^/#/' vpnsetup.sh

          VPN_IPSEC_PSK='your_ipsec_pre_shared_key' \
          VPN_USER='your_vpn_username' \
          VPN_PASSWORD='your_vpn_password' \
          VPN_DNS_SRV1='1.1.1.1' \
          VPN_DNS_SRV2='1.0.0.1' \
          bash vpnsetup.sh

          ipsec initnss
          restart_ipsec
          grep -q "your_ipsec_pre_shared_key" /etc/ipsec.secrets
          grep -q "your_vpn_username" /etc/ppp/chap-secrets
          grep -q "your_vpn_password" /etc/ppp/chap-secrets
          grep -q "your_vpn_username" /etc/ipsec.d/passwd
          grep -q 'modecfgdns="1.1.1.1 1.0.0.1"' /etc/ipsec.conf
          grep -q 'ms-dns 1.1.1.1' /etc/ppp/options.xl2tpd
          grep -q 'ms-dns 1.0.0.1' /etc/ppp/options.xl2tpd

          wget -t 3 -T 30 -nv -O ikev2.sh https://git.io/ikev2setup
          sed -i '/swan_ver_latest=/s/^/#/' ikev2.sh

          bash ikev2.sh <<ANSWERS





          y
          ANSWERS

          grep -q 'modecfgdns="8.8.8.8 8.8.4.4"' /etc/ipsec.d/ikev2.conf
          ls -ld /etc/ipsec.d/vpnclient.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient.sswan
          ls -ld /etc/ipsec.d/vpnclient.p12

          restart_ipsec
          grep pluto "$log1" | tail -n 20
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh <<ANSWERS
          1
          invalidclient:
          vpnclient
          vpnclient2

          ANSWERS

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          rm -f /etc/ipsec.d/vpnclient2*
          bash ikev2.sh <<ANSWERS
          2
          nonexistclient
          vpnclient2
          ANSWERS

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          bash ikev2.sh <<ANSWERS
          3
          ANSWERS

          bash ikev2.sh <<ANSWERS
          4
          nonexistclient
          vpnclient2
          y
          ANSWERS

          bash ikev2.sh <<ANSWERS 2>&1 | grep -i "abort"
          4
          vpnclient2

          ANSWERS

          bash ikev2.sh <<ANSWERS 2>&1 | grep -i "abort"
          2
          vpnclient2

          ANSWERS

          bash ikev2.sh <<ANSWERS
          100
          6
          ANSWERS

          bash ikev2.sh <<ANSWERS 2>&1 | grep -i "abort"
          5

          ANSWERS

          bash ikev2.sh <<ANSWERS
          5
          y
          ANSWERS

          restart_ipsec
          ls -ld /etc/ipsec.d/ikev2.conf && exit 1
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk
          ipsec status | grep -q ikev2-cp && exit 1
          certutil -L -d sql:/etc/ipsec.d

          rm -f /etc/ipsec.d/vpnclient*

          VPN_DNS_SRV1=invaliddns \
          bash ikev2.sh --auto 2>&1 | grep -i "invalid"

          apk del uuidgen
          sed -i '/^include /d' /etc/ipsec.conf

          VPN_CLIENT_NAME=vpnclient1 \
          VPN_DNS_NAME=vpn.example.com \
          VPN_DNS_SRV1=1.1.1.1 \
          VPN_DNS_SRV2=1.0.0.1 \
          bash ikev2.sh --auto

          grep -q 'leftid=@vpn.example.com' /etc/ipsec.d/ikev2.conf
          grep -q 'modecfgdns="1.1.1.1 1.0.0.1"' /etc/ipsec.d/ikev2.conf
          ls -ld /etc/ipsec.d/vpnclient1.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient1.sswan
          ls -ld /etc/ipsec.d/vpnclient1.p12
          grep -q 'vpn.example.com' /etc/ipsec.d/vpnclient1.mobileconfig
          grep -q 'vpn.example.com' /etc/ipsec.d/vpnclient1.sswan

          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --auto --addclient invalidclient: 2>&1 | grep -i "warning"
          bash ikev2.sh --addclient invalidclient: 2>&1 | grep -i "invalid"
          bash ikev2.sh --addclient vpnclient1 2>&1 | grep -i "already exists"

          bash ikev2.sh --addclient vpnclient2

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          bash ikev2.sh --exportclient nonexistclient 2>&1 | grep -i "does not exist"

          rm -f /etc/ipsec.d/vpnclient2*
          bash ikev2.sh --exportclient vpnclient2

          ls -ld /etc/ipsec.d/vpnclient2.mobileconfig
          ls -ld /etc/ipsec.d/vpnclient2.sswan
          ls -ld /etc/ipsec.d/vpnclient2.p12

          bash ikev2.sh --addclient vpnclient2 --exportclient vpnclient2 2>&1 | grep -i "invalid"

          bash ikev2.sh --listclients | grep "vpnclient1"
          bash ikev2.sh --listclients | grep "vpnclient2"

          bash ikev2.sh --revokeclient nonexistclient 2>&1 | grep -i "does not exist"
          bash ikev2.sh --revokeclient vpnclient2 <<ANSWERS
          y
          ANSWERS

          bash ikev2.sh --revokeclient vpnclient2 2>&1 | grep -i "already been revoked"
          bash ikev2.sh --exportclient vpnclient2 2>&1 | grep -i "revoked"
          bash ikev2.sh -h 2>&1 | grep -i "usage:"
          bash ikev2.sh --invalidoption 2>&1 | grep -i "usage:"

          bash ikev2.sh --removeikev2 --exportclient vpnclient1 2>&1 | grep -i "invalid"
          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          bash ikev2.sh <<ANSWERS
          y
          invalidfqdn
          vpn.example.com


          y
          invaliddns
          1.1.1.1
          invaliddns
          1.0.0.1
          y
          ANSWERS

          grep -q 'leftid=@vpn.example.com' /etc/ipsec.d/ikev2.conf
          grep -q 'modecfgdns="1.1.1.1 1.0.0.1"' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          bash ikev2.sh <<ANSWERS

          invalidip
          1.2.3.4
          invalidclient:
          vpnclient1
          1000
          12
          y
          1.1.1.1

          y
          ANSWERS

          grep -q 'leftid=1.2.3.4' /etc/ipsec.d/ikev2.conf
          grep -q 'modecfgdns=1.1.1.1' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          VPN_DNS_SRV1=1.1.1.1 \
          bash ikev2.sh --auto

          grep -q 'modecfgdns=1.1.1.1' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          bash ikev2.sh --auto

          grep -q 'modecfgdns="8.8.8.8 8.8.4.4"' /etc/ipsec.d/ikev2.conf
          restart_ipsec
          ipsec status | grep -q ikev2-cp

          wget -t 3 -T 30 -nv -O vpnup.sh https://git.io/vpnupgrade
          sed -i '/curl /a sed -i "/swan_ver_latest=/s/^/#/" "$tmpdir/vpnup.sh"' vpnup.sh

          for ver in 4.5; do
            sed -i "s/^SWAN_VER=.*/SWAN_VER=$ver/" vpnup.sh
          bash vpnup.sh <<ANSWERS
          y
          y
          ANSWERS
            restart_ipsec
            ipsec --version | grep "$ver"
            ipsec status | grep -q l2tp-psk
            ipsec status | grep -q xauth-psk
            ipsec status | grep -q ikev2-cp
          done

          wget -t 3 -T 30 -nv -O vpnup.sh https://git.io/vpnupgrade-alpine
          sed -i '/swan_ver_latest=/s/^/#/' vpnup.sh

          for ver in 4.5; do
            sed -i "s/^SWAN_VER=.*/SWAN_VER=$ver/" vpnup.sh
          bash vpnup.sh <<ANSWERS
          y
          y
          ANSWERS
            restart_ipsec
            ipsec --version | grep "$ver"
            ipsec status | grep -q l2tp-psk
            ipsec status | grep -q xauth-psk
            ipsec status | grep -q ikev2-cp
          done

          bash ikev2.sh --removeikev2 <<ANSWERS
          y
          ANSWERS

          restart_ipsec
          ls -ld /etc/ipsec.d/ikev2.conf && exit 1
          ipsec status | grep -q l2tp-psk
          ipsec status | grep -q xauth-psk
          ipsec status | grep -q ikev2-cp && exit 1
          certutil -L -d sql:/etc/ipsec.d

          ls -ld vpnsetup.sh
          ls -ld ikev2.sh
          ls -ld vpnup.sh