47 lines
1.5 KiB
Bash
47 lines
1.5 KiB
Bash
#!/bin/bash
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WG_NUM=$1
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WG_CONF="/etc/wireguard"
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PRIV_KEY_FILE="wg${WG_NUM}_privatekey"
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PUB_KEY_FILE="wg${WG_NUM}_publickey"
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CONF_FILE="wg${WG_NUM}.conf"
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if [ -z "$1" ]; then
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echo "Wireguard interface number not provided."
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exit 1
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fi
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if ! [[ "$1" =~ ^-?[0-9]+([.][0-9]+)?$ ]]; then
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echo "Wireguard interface number has to be a number."
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exit 2
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fi
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wg genkey | tee wg"$WG_NUM"_privatekey | wg pubkey > wg"$WG_NUM"_publickey
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PRIVATE_KEY=$(cat $PRIV_KEY_FILE)
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sudo mkdir -p $WG_CONF
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sudo mv ./$PRIV_KEY_FILE $WG_CONF
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sudo mv ./$PUB_KEY_FILE $WG_CONF
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read -p "Enter IP (as server) (e.g. 192.168.${WG_NUM}.1/24): " ADDRESS
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read -p "Enter wireguard subnet, should be the subnet of server IP: " WG_SUBNET
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read -p "Enter physical interface for nat out: " PHY
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read -p "Enter port to listern (e.g. 51820): " LISTEN_PORT
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HOME_SUBNET="10.238.75.0/24"
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CONF_CONTENT="[Interface]
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PrivateKey = $PRIVATE_KEY
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SaveConfig = false
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Address = $ADDRESS
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ListenPort = $LISTEN_PORT
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PostUp = iptables -A FORWARD -i wg$WG_NUM -j ACCEPT; iptables -t nat -A POSTROUTING -s $WG_SUBNET -d $HOME_SUBNET -o wg$WG_NUM -j MASQUERADE; iptables -t nat -A POSTROUTING -s $WG_SUBNET -o $PHY -j MASQUERADE
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PostDown = iptables -D FORWARD -i wg$WG_NUM -j ACCEPT; iptables -t nat -D POSTROUTING -s $WG_SUBNET -d $HOME_SUBNET -o wg$WG_NUM -j MASQUERADE; iptables -t nat -D POSTROUTING -s $WG_SUBNET -o $PHY -j MASQUERADE
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"
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echo "$CONF_CONTENT" > "$CONF_FILE"
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sudo mv "$CONF_FILE" "$WG_CONF"
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echo "Config saved to: $WG_CONF/$CONF_FILE" |