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ncat-client-server: add wg-quick variant

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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2018-05-15 02:26:55 +02:00
parent a5412d1056
commit 2f34f3efe7
2 changed files with 37 additions and 4 deletions
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34
contrib/ncat-client-server/client-quick.sh Executable file
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@ -0,0 +1,34 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
set -e
echo "[!] Warning: This server is for testing purposes only. You may not use this server for abusive or illegal purposes."
echo "[+] Generating private key."
privatekey="$(wg genkey)"
echo "[+] Sending public key to server."
exec 7<>/dev/tcp/demo.wireguard.com/42912
wg pubkey <<<"$privatekey" >&7
echo "[+] Parsing server response."
IFS=: read -r status server_pubkey server_port internal_ip <&7
[[ $status == OK ]] || exit 1
echo "[+] Writing config file."
sudo sh -c 'umask 077; mkdir -p /etc/wireguard; cat > /etc/wireguard/demo.conf' <<_EOF
[Interface]
PrivateKey = $privatekey
Address = $internal_ip/24
DNS = 8.8.8.8, 8.8.4.4, 1.1.1.1, 1.0.0.1
[Peer]
PublicKey = $server_pubkey
Endpoint = demo.wireguard.com:$server_port
AllowedIPs = 0.0.0.0/0
_EOF
echo "[+] Success. Run \`wg-quick up demo\` to turn on the tunnel to the demo server and \`wg-quick down demo\` to turn it off."

7
contrib/ncat-client-server/client.sh
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@ -5,15 +5,14 @@
set -e
[[ $UID == 0 ]] || { echo "You must be root to run this."; exit 1; }
umask 077
trap 'rm -f /tmp/wg_private_key' EXIT INT TERM
exec 3<>/dev/tcp/demo.wireguard.com/42912
wg genkey | tee /tmp/wg_private_key | wg pubkey >&3
privatekey="$(wg genkey)"
wg pubkey <<<"$privatekey" >&3
IFS=: read -r status server_pubkey server_port internal_ip <&3
[[ $status == OK ]]
ip link del dev wg0 2>/dev/null || true
ip link add dev wg0 type wireguard
wg set wg0 private-key /tmp/wg_private_key peer "$server_pubkey" allowed-ips 0.0.0.0/0 endpoint "demo.wireguard.com:$server_port" persistent-keepalive 25
wg set wg0 private-key <(echo "$privatekey") peer "$server_pubkey" allowed-ips 0.0.0.0/0 endpoint "demo.wireguard.com:$server_port" persistent-keepalive 25
ip address add "$internal_ip"/24 dev wg0
ip link set up dev wg0
if [ "$1" == "default-route" ]; then