T683: Initial version for SNMP op mode command definition in XML

1 files changed, 77 insertions, 0 deletions

diff --git a/src/op_mode/snmp.py b/src/op_mode/snmp.py
new file mode 100755
index 000000000..e08441f0e
--- /dev/null
+++ b/src/op_mode/snmp.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2018 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/>.
+#
+# File: snmp.py
+# Purpose:
+#    Show SNMP community/remote hosts
+#    Used by the "run show snmp community" commands.
+
+import os
+import sys
+import argparse
+
+from vyos.config import Config
+
+config_file_daemon = r'/etc/snmp/snmpd.conf'
+
+parser = argparse.ArgumentParser(description='Retrieve infomration from running SNMP daemon')
+parser.add_argument('--allowed', action="store_true", help='Show available SNMP communities')
+parser.add_argument('--community', action="store", help='Show status of given SNMP community', type=str)
+parser.add_argument('--host', action="store", help='SNMP host to connect to', type=str, default='localhost')
+
+config = {
+    'communities': [],
+}
+
+def read_config():
+    with open(config_file_daemon, 'r') as f:
+        for line in f:
+             # Only get configured SNMP communitie
+             if line.startswith('rocommunity') or line.startswith('rwcommunity'):
+                 string = line.split(' ')
+                 # append community to the output list only once
+                 c = string[1]
+                 if c not in config['communities']:
+                     config['communities'].append(c)
+
+def show_all():
+    if len(config['communities']) > 0:
+        print(' '.join(config['communities']))
+
+def show_community(c, h):
+    print('Status of SNMP community {0} on {1}'.format(c, h), flush=True)
+    os.system('/usr/bin/snmpstatus -t1 -v1 -c {0} {1}'.format(c, h))
+
+if __name__ == '__main__':
+    args = parser.parse_args()
+
+    # Do nothing if service is not configured
+    c = Config()
+    if not c.exists_effective('service snmp'):
+        print("SNMP service is not configured")
+        sys.exit(0)
+
+    read_config()
+
+    if args.allowed:
+        show_all()
+        sys.exit(1)
+    elif args.community:
+        show_community(args.community, args.host)
+        sys.exit(1)
+    else:
+        parser.print_help()
+        sys.exit(1)