new_contents: #!/usr/bin/env python3
  
  import re
  import subprocess
  
  import tabulate
  
  def parse_conn_spec(s):
      # Example: ESTABLISHED 14 seconds ago, 10.0.0.2[foo]...10.0.0.1[10.0.0.1]
      return re.search(r'.*ESTABLISHED\s+(.*)ago,\s(.*)\[(.*)\]\.\.\.(.*)\[(.*)\].*', s).groups()
  
  def parse_ike_line(s):
      # Example: 3DES_CBC/HMAC_MD5_96/MODP_1024, 0 bytes_i, 0 bytes_o, rekeying in 45 minutes
      try:
          return re.search(r'.*:\s+(.*)\/(.*)\/(.*),\s+(\d+)\s+bytes_i,\s+(\d+)\s+bytes_o,\s+rekeying', s).groups()
      except AttributeError:
          return (None, None, None, None, None)
  
  
  # Get a list of all configured connections
  with open('/etc/ipsec.conf', 'r') as f:
      config = f.read()
      connections = re.findall(r'conn\s([^\s]+)\s*\n', config)
      connections = list(filter(lambda s: s != '%default', connections))
  
  status_data = []
  
  for conn in connections:
      status = subprocess.check_output("ipsec statusall {0}".format(conn), shell=True).decode()
      if re.search(r'no match', status):
          status_line = [conn, "down", None, None, None, None, None]
      else:
          try:
              time, _, _, ip, id = parse_conn_spec(status)
              if ip == id:
                  id = None
              enc, hash, dh, bytes_in, bytes_out = parse_ike_line(status)
              status_line = [conn, "up", time, "{0}/{1}".format(bytes_in, bytes_out), ip, id, "{0}/{1}/{2}".format(enc, hash, dh)]
          except Exception as e:
              print(status)
              raise e
              status_line = [conn, None, None, None, None, None]
  
      status_line = list(map(lambda x: "N/A" if x is None else x, status_line))
      status_data.append(status_line)
  
  headers = ["Connection", "State", "Up", "Bytes In/Out", "Remote address", "Remote ID", "Proposal"]
  output = tabulate.tabulate(status_data, headers)
  print(output)
  
subject: add a new script for displaying IPsec SAs.