#!/bin/sh # Dropbear Connect Script (DBC) - Developed by acidvegas (https://git.acid.vegas/void) # Dropbear config must be stored in pass in the following format: # NAME USER HOST PORT JUMP # # JUMP is optional and can be used to specify a host that should use your jump host. # If JUMP is set to x, the script will use the jump host to connect to the end host. # There should only be one jump host in the config file and it should be named 'jump'. # # Example: # jump acidvegas 68.192.37.5 5902 # hatebox acidvegas 100.151.45.10 2023 x # aws admin 45.16.150.203 22 # # Useful commands: # Git usage : git config core.sshCommand "dbclient -i ~/.ssh/key" # Generate private key : dropbearkey -t ed25519 -f ~/.dropbear/key | grep "ssh-ed25519" # Get public key : dropbearkey -y -f ~/.dropbear/key | head -n 2 | tail -n 1 load_host() { CONFIG_DATA="$1" NAME="$2" # Use grep to find the matching line MATCHING_LINES=$(printf "%s\n" "$CONFIG_DATA" | grep "^$NAME ") # Check if exactly one matching line is found LINE_COUNT=$(printf "%s\n" "$MATCHING_LINES" | wc -l) if [ "$LINE_COUNT" -ne 1 ]; then echo "Error: The NAME '$NAME' matches multiple or no lines." && return 1 fi # Remove extra whitespace from the matching line MATCHING_LINES=$(printf "%s\n" "$MATCHING_LINES" | tr -s '[:space:]' ' ') # Read parameters from the matching line line_name=$(echo $MATCHING_LINES | cut -d ' ' -f 1) line_user=$(echo $MATCHING_LINES | cut -d ' ' -f 2) line_host=$(echo $MATCHING_LINES | cut -d ' ' -f 3) line_port=$(echo $MATCHING_LINES | cut -d ' ' -f 4) line_jump=$(echo $MATCHING_LINES | cut -d ' ' -f 5) # Output the result printf "%s@%s^%s%s" "$line_user" "$line_host" "$line_port" "$line_jump" } # Check if the name argument is provided if [ $# -ne 1 ]; then echo "usage: $0 [name]" && exit 1 fi # Read the name argument NAME=$1 # Read the config data CONFIG_DATA=$($HOME/.scripts/pass dropbear) # Check if the config data is read successfully if [ $? -ne 0 ]; then echo "error: can not read config data" && exit 1 fi # Load the host data JUMP_HOST=$(load_host "$CONFIG_DATA" "jump") END_HOST=$(load_host "$CONFIG_DATA" "$NAME") JUMP_CHECK=$(printf "$END_HOST" | rev | cut -c1) # Connect to the host if [ $JUMP_CHECK = "x" ]; then END_HOST=$(printf $END_HOST | rev | cut -c2- | rev) dbclient -K 60 -i $HOME/.dropbear/key $JUMP_HOST,$END_HOST else dbclient -K 60 -i $HOME/.dropbear/key $END_HOST fi