mirror of
https://github.com/pivpn/pivpn.git
synced 2024-12-18 19:00:15 +00:00
340 lines
8.9 KiB
Bash
Executable file
340 lines
8.9 KiB
Bash
Executable file
#!/bin/bash
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PLAT="$(grep -sEe '^NAME\=' /etc/os-release \
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| sed -E -e "s/NAME\=[\'\"]?([^ ]*).*/\1/")"
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# dual protocol, VPN type supplied as $1
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VPN="${1}"
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setupVars="/etc/pivpn/${VPN}/setupVars.conf"
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ERR=0
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err() {
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echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
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}
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if [[ ! -f "${setupVars}" ]]; then
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err "::: Missing setup vars file!"
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exit 1
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fi
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# SC1090 disabled as setupVars file differs from system to system
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# shellcheck disable=SC1090
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source "${setupVars}"
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if [[ "${VPN}" == "wireguard" ]]; then
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VPN_PRETTY_NAME="WireGuard"
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VPN_SERVICE="wg-quick@wg0"
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if [[ "${PLAT}" == 'Alpine' ]]; then
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VPN_SERVICE='wg-quick'
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fi
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elif [[ "${VPN}" == "openvpn" ]]; then
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VPN_SERVICE="openvpn"
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VPN_PRETTY_NAME="OpenVPN"
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fi
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if [[ "$(< /proc/sys/net/ipv4/ip_forward)" -eq 1 ]]; then
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echo ":: [OK] IP forwarding is enabled"
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else
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ERR=1
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read -r \
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-p ":: [ERR] IP forwarding is not enabled, attempt fix now? [Y/n] " \
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REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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sed -i '/net.ipv4.ip_forward=1/s/^#//g' /etc/sysctl.conf
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sysctl -p
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echo "Done"
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fi
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fi
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if [[ "${USING_UFW}" -eq 0 ]]; then
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# Disabled SC Warnings for SC2154, values
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# for variables are sourced from setupVars
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# shellcheck disable=SC2154
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if iptables \
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-t nat \
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-C POSTROUTING \
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-s "${pivpnNET}/${subnetClass}" \
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-o "${IPv4dev}" \
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-j MASQUERADE \
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-m comment \
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--comment "${VPN}-nat-rule" &> /dev/null; then
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echo ":: [OK] Iptables MASQUERADE rule set"
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else
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ERR=1
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echo -n ":: [ERR] Iptables MASQUERADE rule is not set, "
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echo -n "attempt fix now? [Y/n] "
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read -r REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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iptables \
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-t nat \
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-I POSTROUTING \
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-s "${pivpnNET}/${subnetClass}" \
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-o "${IPv4dev}" \
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-j MASQUERADE \
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-m comment \
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--comment "${VPN}-nat-rule"
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iptables-save > /etc/iptables/rules.v4
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echo "Done"
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fi
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fi
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if [[ "${INPUT_CHAIN_EDITED}" -eq 1 ]]; then
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# Disabled SC Warnings for SC2154, values
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# for variables are sourced from setupVars
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# shellcheck disable=SC2154
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if iptables \
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-C INPUT \
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-i "${IPv4dev}" \
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-p "${pivpnPROTO}" \
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--dport "${pivpnPORT}" \
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-j ACCEPT \
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-m comment \
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--comment "${VPN}-input-rule" &> /dev/null; then
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echo ":: [OK] Iptables INPUT rule set"
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else
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ERR=1
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read -r \
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-p ":: [ERR] Iptables INPUT rule is not set, attempt fix now? [Y/n] " \
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REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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iptables \
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-I INPUT 1 \
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-i "${IPv4dev}" \
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-p "${pivpnPROTO}" \
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--dport "${pivpnPORT}" \
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-j ACCEPT \
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-m comment \
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--comment "${VPN}-input-rule"
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iptables-save > /etc/iptables/rules.v4
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echo "Done"
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fi
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fi
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fi
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if [[ "${FORWARD_CHAIN_EDITED}" -eq 1 ]]; then
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# Disabled SC Warnings for SC2154, values
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# for variables are sourced from setupVars
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# shellcheck disable=SC2154
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if iptables \
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-C FORWARD \
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-s "${pivpnNET}/${subnetClass}" \
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-i "${pivpnDEV}" \
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-o "${IPv4dev}" \
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-j ACCEPT \
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-m comment \
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--comment "${VPN}-forward-rule" &> /dev/null; then
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echo ":: [OK] Iptables FORWARD rule set"
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else
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ERR=1
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echo -n ":: [ERR] Iptables FORWARD rule is not set, "
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echo -n "attempt fix now? [Y/n] "
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read -r REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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iptables \
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-I FORWARD 1 \
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-d "${pivpnNET}/${subnetClass}" \
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-i "${IPv4dev}" \
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-o "${pivpnDEV}" \
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-m conntrack \
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--ctstate RELATED,ESTABLISHED \
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-j ACCEPT \
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-m comment \
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--comment "${VPN}-forward-rule"
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iptables \
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-I FORWARD 2 \
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-s "${pivpnNET}/${subnetClass}" \
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-i "${pivpnDEV}" \
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-o "${IPv4dev}" \
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-j ACCEPT \
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-m comment \
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--comment "${VPN}-forward-rule"
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iptables-save > /etc/iptables/rules.v4
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echo "Done"
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fi
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fi
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fi
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else
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if LANG="en_US.UTF-8" ufw status | grep -qw 'active'; then
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echo ":: [OK] Ufw is enabled"
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else
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ERR=1
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echo -n ":: [ERR] Ufw is not enabled, "
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echo -n "try to enable now? [Y/n] "
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read -r REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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ufw enable
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fi
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fi
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if iptables \
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-t nat \
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-C POSTROUTING \
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-s "${pivpnNET}/${subnetClass}" \
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-o "${IPv4dev}" \
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-j MASQUERADE \
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-m comment \
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--comment "${VPN}-nat-rule" &> /dev/null; then
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echo ":: [OK] Iptables MASQUERADE rule set"
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else
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ERR=1
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echo -n ":: [ERR] Iptables MASQUERADE rule is not set, "
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echo -n "attempt fix now? [Y/n] "
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read -r REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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sed_pattern='/delete these required/i'
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sed_pattern="${sed_pattern} *nat\n:POSTROUTING ACCEPT [0:0]\n"
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sed_pattern="${sed_pattern} -I POSTROUTING"
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sed_pattern="${sed_pattern} -s ${pivpnNET}/${subnetClass}"
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sed_pattern="${sed_pattern} -o ${IPv4dev}"
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sed_pattern="${sed_pattern} -j MASQUERADE"
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sed_pattern="${sed_pattern} -m comment"
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sed_pattern="${sed_pattern} --comment ${VPN}-nat-rule\n"
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sed_pattern="${sed_pattern}COMMIT\n"
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sed "${sed_pattern}" -i /etc/ufw/before.rules
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ufw reload
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echo "Done"
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unset sed_pattern
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fi
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fi
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if iptables \
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-C ufw-user-input \
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-p "${pivpnPROTO}" \
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--dport "${pivpnPORT}" \
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-j ACCEPT &> /dev/null; then
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echo ":: [OK] Ufw input rule set"
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else
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ERR=1
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read -r \
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-p ":: [ERR] Ufw input rule is not set, attempt fix now? [Y/n] " \
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REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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ufw insert 1 allow "${pivpnPORT}"/"${pivpnPROTO}"
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ufw reload
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echo "Done"
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fi
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fi
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if iptables \
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-C ufw-user-forward \
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-i "${pivpnDEV}" \
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-o "${IPv4dev}" \
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-s "${pivpnNET}/${subnetClass}" \
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-j ACCEPT &> /dev/null; then
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echo ":: [OK] Ufw forwarding rule set"
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else
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ERR=1
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read -r \
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-p ":: [ERR] Ufw forwarding rule is not set, attempt fix now? [Y/n] " \
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REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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ufw route insert 1 allow in on "${pivpnDEV}" \
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from "${pivpnNET}/${subnetClass}" out on "${IPv4dev}" to any
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ufw reload
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echo "Done"
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fi
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fi
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fi
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if [[ "${PLAT}" == 'Alpine' ]]; then
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if [[ "$(rc-service "${VPN_SERVICE}" status \
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| sed -E -e 's/.*status\: (.*)/\1/')" == 'started' ]]; then
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echo ":: [OK] ${VPN_PRETTY_NAME} is running"
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else
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ERR=1
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echo -n ":: [ERR] ${VPN_PRETTY_NAME} is not running, "
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echo -n "try to start now? [Y/n] "
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read -r REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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rc-service -s "${VPN_SERVICE}" restart
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rc-service -N "${VPN_SERVICE}" start
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echo "Done"
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fi
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fi
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if rc-update show default \
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| grep -sEe "\s*${VPN_SERVICE} .*" &> /dev/null; then
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echo -n ":: [OK] ${VPN_PRETTY_NAME} is enabled "
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echo "(it will automatically start on reboot)"
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else
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ERR=1
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echo -n ":: [ERR] ${VPN_PRETTY_NAME} is not enabled, "
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echo -n "try to enable now? [Y/n] "
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read -r REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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rc-update add "${VPN_SERVICE}" default
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echo "Done"
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fi
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fi
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else
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if systemctl is-active -q "${VPN_SERVICE}"; then
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echo ":: [OK] ${VPN_PRETTY_NAME} is running"
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else
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ERR=1
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echo -n ":: [ERR] ${VPN_PRETTY_NAME} is not running, "
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echo -n "try to start now? [Y/n] "
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read -r REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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systemctl start "${VPN_SERVICE}"
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echo "Done"
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fi
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fi
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if systemctl is-enabled -q "${VPN_SERVICE}"; then
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echo ":: [OK] ${VPN_PRETTY_NAME} is enabled "
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echo "(it will automatically start on reboot)"
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else
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ERR=1
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echo -n ":: [ERR] ${VPN_PRETTY_NAME} is not enabled, "
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echo -n "try to enable now? [Y/n] "
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read -r REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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systemctl enable "${VPN_SERVICE}"
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echo "Done"
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fi
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fi
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fi
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# grep -w (whole word) is used so port 11940 won't match when looking for 1194
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if netstat -antu | grep -wqE "${pivpnPROTO}.*${pivpnPORT}"; then
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echo -n ":: [OK] ${VPN_PRETTY_NAME} is listening "
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echo "on port ${pivpnPORT}/${pivpnPROTO}"
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else
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ERR=1
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echo -n ":: [ERR] ${VPN_PRETTY_NAME} is not listening, "
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echo -n "try to restart now? [Y/n] "
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read -r REPLY
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if [[ "${REPLY}" =~ ^[Yy]$ ]] || [[ -z "${REPLY}" ]]; then
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if [[ "${PLAT}" == 'Alpine' ]]; then
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rc-service -s "${VPN_SERVICE}" restart
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rc-service -N "${VPN_SERVICE}" start
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else
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systemctl restart "${VPN_SERVICE}"
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fi
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echo "Done"
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fi
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fi
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if [[ "${ERR}" -eq 1 ]]; then
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echo -e "[INFO] Run \e[1mpivpn -d\e[0m again to see if we detect issues"
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fi
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