44 lines
1.3 KiB
Bash
Executable file
44 lines
1.3 KiB
Bash
Executable file
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Copyright (C) 2015-2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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set -e
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shopt -s nocasematch
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shopt -s extglob
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export LC_ALL=C
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CONFIG_FILE="$1"
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[[ $CONFIG_FILE =~ ^[a-zA-Z0-9_=+.-]{1,15}$ ]] && CONFIG_FILE="/etc/wireguard/$CONFIG_FILE.conf"
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[[ $CONFIG_FILE =~ /?([a-zA-Z0-9_=+.-]{1,15})\.conf$ ]]
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INTERFACE="${BASH_REMATCH[1]}"
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process_peer() {
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[[ $PEER_SECTION -ne 1 || -z $PUBLIC_KEY || -z $ENDPOINT ]] && return 0
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[[ $(wg show "$INTERFACE" latest-handshakes) =~ ${PUBLIC_KEY//+/\\+}\ ([0-9]+) ]] || return 0
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(( ($EPOCHSECONDS - ${BASH_REMATCH[1]}) > 135 )) || return 0
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wg set "$INTERFACE" peer "$PUBLIC_KEY" endpoint "$ENDPOINT"
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reset_peer_section
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}
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reset_peer_section() {
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PEER_SECTION=0
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PUBLIC_KEY=""
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ENDPOINT=""
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}
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reset_peer_section
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while read -r line || [[ -n $line ]]; do
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stripped="${line%%\#*}"
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key="${stripped%%=*}"; key="${key##*([[:space:]])}"; key="${key%%*([[:space:]])}"
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value="${stripped#*=}"; value="${value##*([[:space:]])}"; value="${value%%*([[:space:]])}"
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[[ $key == "["* ]] && { process_peer; reset_peer_section; }
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[[ $key == "[Peer]" ]] && PEER_SECTION=1
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if [[ $PEER_SECTION -eq 1 ]]; then
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case "$key" in
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PublicKey) PUBLIC_KEY="$value"; continue ;;
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Endpoint) ENDPOINT="$value"; continue ;;
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esac
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fi
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done < "$CONFIG_FILE"
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process_peer
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