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-rw-r--r--python/vyos/interface.py131
-rw-r--r--python/vyos/interfaces.py45
2 files changed, 175 insertions, 1 deletions
diff --git a/python/vyos/interface.py b/python/vyos/interface.py
new file mode 100644
index 000000000..6d57d972b
--- /dev/null
+++ b/python/vyos/interface.py
@@ -0,0 +1,131 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library. If not, see <http://www.gnu.org/licenses/>.
+
+import vyos
+from vyos.config import Config
+import vyos.interfaces
+
+import re
+import json
+
+import subprocess
+import time
+from datetime import timedelta
+import glob
+from os.path import isfile
+from tabulate import tabulate
+from hurry.filesize import size,alternative
+
+class Interface():
+
+ intf = None
+ intf_type = None
+
+ def __init__(self,intf):
+ self.intf = intf
+ self.intf_type = vyos.interfaces.get_type_of_interface(self.intf)
+
+ def print_interface(self):
+ if (self.intf_type == 'wireguard'):
+ self.print_wireguard_interface()
+
+ self.print_interface_stats()
+
+ def print_interface_stats(self):
+ stats = self.get_interface_stats()
+ rx = [['bytes','packets','errors','dropped','overrun','mcast'],[stats['rx_bytes'],stats['rx_packets'],stats['rx_errors'],stats['rx_dropped'],stats['rx_over_errors'],stats['multicast']]]
+ tx = [['bytes','packets','errors','dropped','carrier','collisions'],[stats['tx_bytes'],stats['tx_packets'],stats['tx_errors'],stats['tx_dropped'],stats['tx_carrier_errors'],stats['collisions']]]
+ output = "RX: \n"
+ output += tabulate(rx,headers="firstrow",numalign="right",tablefmt="plain")
+ output += "\n\nTX: \n"
+ output += tabulate(tx,headers="firstrow",numalign="right",tablefmt="plain")
+ print(' '.join(('\n'+output.lstrip()).splitlines(True)))
+
+ def get_interface_stats(self):
+ interface_stats = dict()
+ devices = [f for f in glob.glob("/sys/class/net/**/statistics")]
+ for dev_path in devices:
+ metrics = [f for f in glob.glob(dev_path +"/**")]
+ dev = re.findall(r"/sys/class/net/(.*)/statistics",dev_path)[0]
+ dev_dict = dict()
+ for metric_path in metrics:
+ metric = metric_path.replace(dev_path+"/","")
+ if isfile(metric_path):
+ data = open(metric_path, 'r').read()[:-1]
+ dev_dict[metric] = int(data)
+ interface_stats[dev] = dev_dict
+ return interface_stats[self.intf]
+
+ def print_wireguard_interface(self):
+ output = subprocess.check_output(["wg", "show", self.intf], universal_newlines=True)
+ wgdump = vyos.interfaces.wireguard_dump()[self.intf]
+ c = Config()
+ c.set_level("interfaces wireguard {}".format(self.intf))
+ description = c.return_effective_value("description")
+
+ print ("interface: {}".format(self.intf))
+ """ if the interface has a description, modify the output to include it """
+ if (description):
+ print (" description: {}".format(description))
+ output = re.sub(r"interface: {}".format(re.escape(self.intf)),"interface: {}\n Description: {}".format(self.intf,description),output)
+
+ print (" public key: {}".format(wgdump['public_key']))
+ print (" private key: (hidden)")
+ print (" listening port: {}".format(wgdump['listen_port']))
+ print ()
+
+ for peer in c.list_effective_nodes(' peer'):
+ if wgdump['peers']:
+ pubkey = c.return_effective_value("peer {} pubkey".format(peer))
+ if pubkey in wgdump['peers']:
+ wgpeer = wgdump['peers'][pubkey]
+
+ print (" peer: {}".format(peer))
+ print (" public key: {}".format(pubkey))
+
+ """ figure out if the tunnel is recently active or not """
+ status = "inactive"
+ if (wgpeer['latest_handshake'] is None):
+ """ no handshake ever """
+ status = "inactive"
+ else:
+ if int(wgpeer['latest_handshake']) > 0:
+ delta = timedelta(seconds=int(time.time() - wgpeer['latest_handshake']))
+ print (" latest handshake: {}".format(delta))
+ if (time.time() - int(wgpeer['latest_handshake']) < (60*5)):
+ """ Five minutes and the tunnel is still active """
+ status = "active"
+ else:
+ """ it's been longer than 5 minutes """
+ status = "inactive"
+ elif int(wgpeer['latest_handshake']) == 0:
+ """ no handshake ever """
+ status = "inactive"
+ print (" status: {}".format(status))
+
+ if wgpeer['endpoint'] is not None:
+ print (" endpoint: {}".format(wgpeer['endpoint']))
+
+ if wgpeer['allowed_ips'] is not None:
+ print (" allowed ips: {}".format(",".join(wgpeer['allowed_ips']).replace(",",", ")))
+
+ if wgpeer['transfer_rx'] > 0 or wgpeer['transfer_tx'] > 0:
+ rx_size =size(wgpeer['transfer_rx'],system=alternative)
+ tx_size =size(wgpeer['transfer_tx'],system=alternative)
+ print (" transfer: {} received, {} sent".format(rx_size,tx_size))
+
+ if wgpeer['persistent_keepalive'] is not None:
+ print (" persistent keepalive: every {} seconds".format(wgpeer['persistent_keepalive']))
+ print()
diff --git a/python/vyos/interfaces.py b/python/vyos/interfaces.py
index d69ce9d04..ecf061d17 100644
--- a/python/vyos/interfaces.py
+++ b/python/vyos/interfaces.py
@@ -16,9 +16,9 @@
import re
import json
+import subprocess
import netifaces
-
intf_type_data_file = '/usr/share/vyos/interface-types.json'
def list_interfaces():
@@ -54,3 +54,46 @@ def get_type_of_interface(intf):
return key
raise ValueError("No type found for interface name: {0}".format(intf))
+
+def wireguard_dump():
+ """Dump wireguard data in a python friendly way."""
+ last_device=None
+ output = {}
+
+ # Dump wireguard connection data
+ _f = subprocess.check_output(["wg", "show", "all", "dump"]).decode()
+ for line in _f.split('\n'):
+ if not line:
+ # Skip empty lines and last line
+ continue
+ items = line.split('\t')
+
+ if last_device != items[0]:
+ # We are currently entering a new node
+ device, private_key, public_key, listen_port, fw_mark = items
+ last_device = device
+
+ output[device] = {
+ 'private_key': None if private_key == '(none)' else private_key,
+ 'public_key': None if public_key == '(none)' else public_key,
+ 'listen_port': int(listen_port),
+ 'fw_mark': None if fw_mark == 'off' else int(fw_mark),
+ 'peers': {},
+ }
+ else:
+ # We are entering a peer
+ device, public_key, preshared_key, endpoint, allowed_ips, latest_handshake, transfer_rx, transfer_tx, persistent_keepalive = items
+ if allowed_ips == '(none)':
+ allowed_ips = []
+ else:
+ allowed_ips = allowed_ips.split('\t')
+ output[device]['peers'][public_key] = {
+ 'preshared_key': None if preshared_key == '(none)' else preshared_key,
+ 'endpoint': None if endpoint == '(none)' else endpoint,
+ 'allowed_ips': allowed_ips,
+ 'latest_handshake': None if latest_handshake == '0' else int(latest_handshake),
+ 'transfer_rx': int(transfer_rx),
+ 'transfer_tx': int(transfer_tx),
+ 'persistent_keepalive': None if persistent_keepalive == 'off' else int(persistent_keepalive),
+ }
+ return output