Merge pull request #929 from sarthurdev/pki_wg

pki: wireguard: T3642: Migrate Wireguard private key directly into CLI

1 files changed, 41 insertions, 113 deletions

diff --git a/src/op_mode/wireguard.py b/src/op_mode/wireguard.py
index e08bc983a..3ed8e17ca 100755
--- a/src/op_mode/wireguard.py
+++ b/src/op_mode/wireguard.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2018-2020 VyOS maintainers and contributors
+# Copyright (C) 2018-2021 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
@@ -15,132 +15,65 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import argparse
-import os
 import sys
-import shutil
-import syslog as sl
-import re
+import tabulate
 
 from vyos.config import Config
 from vyos.ifconfig import WireGuardIf
 from vyos.util import cmd
-from vyos.util import run
-from vyos.util import check_kmod
 from vyos import ConfigError
 
-dir = r'/config/auth/wireguard'
-psk = dir + '/preshared.key'
-
-k_mod = 'wireguard'
-
-def generate_keypair(pk, pub):
-    """ generates a keypair which is stored in /config/auth/wireguard """
-    old_umask = os.umask(0o027)
-    if run(f'wg genkey | tee {pk} | wg pubkey > {pub}') != 0:
-        raise ConfigError("wireguard key-pair generation failed")
-    else:
-        sl.syslog(
-            sl.LOG_NOTICE, "new keypair wireguard key generated in " + dir)
-    os.umask(old_umask)
-
-
-def genkey(location):
-    """ helper function to check, regenerate the keypair """
-    pk = "{}/private.key".format(location)
-    pub = "{}/public.key".format(location)
-    old_umask = os.umask(0o027)
-    if os.path.exists(pk) and os.path.exists(pub):
-        try:
-            choice = input(
-                "You already have a wireguard key-pair, do you want to re-generate? [y/n] ")
-            if choice == 'y' or choice == 'Y':
-                generate_keypair(pk, pub)
-        except KeyboardInterrupt:
-            sys.exit(0)
-    else:
-        """ if keypair is bing executed from a running iso """
-        if not os.path.exists(location):
-            run(f'sudo mkdir -p {location}')
-            run(f'sudo chgrp vyattacfg {location}')
-            run(f'sudo chmod 750 {location}')
-        generate_keypair(pk, pub)
-    os.umask(old_umask)
-
-
-def showkey(key):
-    """ helper function to show privkey or pubkey """
-    if os.path.exists(key):
-        print (open(key).read().strip())
-    else:
-        print ("{} not found".format(key))
-
-
-def genpsk():
-    """
-        generates a preshared key and shows it on stdout,
-        it's stored only in the cli config
-    """
-
-    psk = cmd('wg genpsk')
-    print(psk)
-
-def list_key_dirs():
-    """ lists all dirs under /config/auth/wireguard """
-    if os.path.exists(dir):
-        nks = next(os.walk(dir))[1]
-        for nk in nks:
-            print (nk)
-
-def del_key_dir(kname):
-    """ deletes /config/auth/wireguard/<kname> """
-    kdir = "{0}/{1}".format(dir,kname)
-    if not os.path.isdir(kdir):
-        print ("named keypair {} not found".format(kname))
-        return 1
-    shutil.rmtree(kdir)
-
+base = ['interfaces', 'wireguard']
+
+def get_public_keys():
+    config = Config()
+    headers = ['Interface', 'Peer', 'Public Key']
+    out = []
+    if config.exists(base):
+        wg_interfaces = config.get_config_dict(base, key_mangling=('-', '_'),
+                                             get_first_key=True,
+                                             no_tag_node_value_mangle=True)
+
+        for wg, wg_conf in wg_interfaces.items():
+            if 'peer' in wg_conf:
+                for peer, peer_conf in wg_conf['peer'].items():
+                    out.append([wg, peer, peer_conf['public_key']])
+
+    print("Wireguard Public Keys:")
+    print(tabulate.tabulate(out, headers))
+
+def get_private_keys():
+    config = Config()
+    headers = ['Interface', 'Private Key', 'Public Key']
+    out = []
+    if config.exists(base):
+        wg_interfaces = config.get_config_dict(base, key_mangling=('-', '_'),
+                                             get_first_key=True,
+                                             no_tag_node_value_mangle=True)
+
+        for wg, wg_conf in wg_interfaces.items():
+            private_key = wg_conf['private_key']
+            public_key = cmd('wg pubkey', input=private_key)
+            out.append([wg, private_key, public_key])
+
+    print("Wireguard Private Keys:")
+    print(tabulate.tabulate(out, headers))
 
 if __name__ == '__main__':
-    check_kmod(k_mod)
     parser = argparse.ArgumentParser(description='wireguard key management')
     parser.add_argument(
-        '--genkey', action="store_true", help='generate key-pair')
-    parser.add_argument(
-        '--showpub', action="store_true", help='shows public key')
-    parser.add_argument(
-        '--showpriv', action="store_true", help='shows private key')
-    parser.add_argument(
-        '--genpsk', action="store_true", help='generates preshared-key')
-    parser.add_argument(
-        '--location', action="store", help='key location within {}'.format(dir))
-    parser.add_argument(
-        '--listkdir', action="store_true", help='lists named keydirectories')
+        '--showpub', action="store_true", help='shows public keys')
     parser.add_argument(
-        '--delkdir', action="store_true", help='removes named keydirectories')
+        '--showpriv', action="store_true", help='shows private keys')
     parser.add_argument(
         '--showinterface', action="store", help='shows interface details')
     args = parser.parse_args()
 
     try:
-        if args.genkey:
-            if args.location:
-                genkey("{0}/{1}".format(dir, args.location))
-            else:
-                genkey("{}/default".format(dir))
         if args.showpub:
-            if args.location:
-                showkey("{0}/{1}/public.key".format(dir, args.location))
-            else:
-                showkey("{}/default/public.key".format(dir))
+            get_public_keys()
         if args.showpriv:
-            if args.location:
-                showkey("{0}/{1}/private.key".format(dir, args.location))
-            else:
-                showkey("{}/default/private.key".format(dir))
-        if args.genpsk:
-            genpsk()
-        if args.listkdir:
-            list_key_dirs()
+            get_private_keys()
         if args.showinterface:
             try:
                 intf = WireGuardIf(args.showinterface, create=False, debug=False)
@@ -148,11 +81,6 @@ if __name__ == '__main__':
             # the interface does not exists
             except Exception:
                 pass
-        if args.delkdir:
-            if args.location:
-                del_key_dir(args.location)
-            else:
-                del_key_dir("default")
 
     except ConfigError as e:
         print(e)