anyconnect: T2036: add anyconnect VPN support

1 files changed, 67 insertions, 0 deletions

diff --git a/src/op_mode/anyconnect-control.py b/src/op_mode/anyconnect-control.py
new file mode 100755
index 000000000..6382016b7
--- /dev/null
+++ b/src/op_mode/anyconnect-control.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2020 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
+# published by the Free Software Foundation.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import sys
+import argparse
+import json
+
+from vyos.config import Config
+from vyos.util import popen, run, DEVNULL
+from tabulate import tabulate
+
+occtl        = '/usr/bin/occtl'
+occtl_socket = '/run/ocserv/occtl.socket'
+
+def show_sessions():
+    out, code = popen("sudo {0} -j -s {1} show users".format(occtl, occtl_socket),stderr=DEVNULL)
+    if code:
+        sys.exit('Cannot get anyconnect users information')
+    else:
+        headers = ["interface", "username", "ip", "remote IP", "RX", "TX", "state", "uptime"]
+        sessions = json.loads(out)
+        ses_list = []
+        for ses in sessions:
+            ses_list.append([ses["Device"], ses["Username"], ses["IPv4"], ses["Remote IP"], ses["_RX"], ses["_TX"], ses["State"], ses["_Connected at"]])
+        if len(ses_list) > 0:
+            print(tabulate(ses_list, headers))
+        else:
+            print("No active anyconnect sessions")
+
+def is_ocserv_configured():
+    if not Config().exists_effective('vpn anyconnect'):
+        print("vpn anyconnect server is not configured")
+        sys.exit(1)
+
+def main():
+    #parese args
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--action', help='Control action', required=True)
+    parser.add_argument('--selector', help='Selector username|ifname|sid', required=False)
+    parser.add_argument('--target', help='Target must contain username|ifname|sid', required=False)
+    args = parser.parse_args()
+
+
+    # Check is IPoE configured
+    is_ocserv_configured()
+
+    if args.action == "restart":
+        run("systemctl restart ocserv")
+        sys.exit(0)
+    elif args.action == "show_sessions":
+        show_sessions()
+
+if __name__ == '__main__':
+    main()