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validate_config.py
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validate_config.py
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#!/usr/bin/env python3
# ------------------------------------------------------------------------
#
# Demonstrates how to validate Cisco configuration
#
# (C) 2021 Osama Abbas, Cairo, Egypt
# Released under MIT License
#
# Filename: cisco_validation.py
# Version: Python 3.11.1
# Authors: Osama Abbas ([email protected])
# Description: This program is designed to validate Cisco configuration
#
# ------------------------------------------------------------------------
import json
from typing import Union
from cerberus import Validator
json_schema = {
"hostname": {
"type": "string",
"minlength": 1,
"maxlength": 63,
"required": True,
"empty": False,
"regex": "[A-Za-z0-9_-]+",
},
"timezone": {"type": "string", "required": True, "empty": False},
"domain_name": {
"type": "string",
"required": True,
"empty": False,
"regex": "[/^\S+$/]+",
},
"stp_mode": {
"type": "string",
"required": True,
"empty": False,
"allowed": ["pvst", "rapid-pvst", "mst"],
},
"vtp_domain": {"type": "string", "required": False, "empty": True},
"vtp_version": {"type": "string", "required": False, "allowed": ["1", "2", "3"]},
"vtp_mode": {
"type": "string",
"required": True,
"empty": False,
"allowed": ["client", "server", "transparent", "off"],
},
"logging_console": {"type": "string", "required": False, "empty": True},
"logging_buffer_size": {"type": "string"},
"http_server": {
"type": "string",
"required": False,
"empty": True,
"allowed": ["yes", "no"],
},
"errdisable": {
"type": "string",
"required": False,
"empty": True,
"allowed": ["yes", "no"],
},
"errdisable_recovery_interval": {
"type": "string",
"required": False,
"empty": True,
"dependencies": ["errdisable"],
"regex": "[0-9]+",
},
"lldp": {
"type": "string",
"required": False,
"empty": True,
"allowed": ["yes", "no"],
},
"username": {"type": "string", "required": True, "empty": False},
"algorithm_type": {
"type": "string",
"required": True,
"empty": False,
"allowed": ["scrypt", "sha256"],
},
"password": {"type": "string", "required": True, "empty": False},
"enable_password": {"type": "string", "required": False, "empty": True},
"ssh_key_size": {
"type": "string",
"required": False,
"empty": True,
"regex": "[0-9]+",
},
"ssh_version": {
"type": "string",
"required": False,
"empty": True,
"regex": "[0-9]+",
},
"vty_lines": {
"type": "string",
"required": False,
"empty": True,
"regex": "[0-9]+",
},
"login_local": {
"type": "string",
"required": False,
"empty": True,
"allowed": ["yes", "no"],
},
"timeout": {"type": "string", "required": False, "empty": True, "regex": "[0-9]+"},
"transport_input": {
"type": "string",
"required": False,
"empty": True,
"allowed": ["ssh", "telnet", "all"],
},
"transport_output": {
"type": "string",
"required": False,
"empty": True,
"allowed": ["ssh", "telnet", "all"],
},
"vlans": {
"type": "list",
"schema": {
"type": "dict",
"schema": {
"id": {"type": "string", "required": True, "regex": "[0-9]+"},
"name": {"type": "string", "required": True},
"ip_addr": {"type": "string", "required": False},
"mask": {"type": "string", "required": False},
"desc": {"type": "string", "required": False},
},
},
},
"etherchannels": {
"type": "list",
"schema": {
"type": "dict",
"schema": {
"id": {"type": "string", "required": True, "regex": "[0-9]+"},
"type": {
"type": "string",
"required": True,
"empty": False,
"allowed": ["L2", "l2", "L3", "l3"],
},
"mode": {"type": "string", "required": False, "empty": True},
"access_vlan": {
"type": "string",
"required": False,
"empty": True,
"regex": "[0-9]+",
},
"native_vlan": {
"type": "string",
"required": False,
"empty": True,
"regex": "[0-9]+",
},
"allowed_vlans": {
"type": "string",
"required": False,
"empty": True,
},
"ip_addr": {
"type": "string",
"required": False,
"empty": True,
},
"mask": {
"type": "string",
"required": False,
"empty": True,
},
"desc": {
"type": "string",
"required": False,
"empty": True,
},
},
},
},
"interfaces": {
"type": "list",
"schema": {
"type": "dict",
"schema": {
"name": {
"type": "string",
"required": True,
"empty": False,
"regex": "[\D+\d+((/\d+)+(\.\d+)?)?]+",
},
"mode": {
"type": "string",
"required": True,
"empty": False,
},
"access_vlan": {
"type": "string",
"required": False,
"empty": True,
"regex": "[0-9]+",
},
"voice_vlan": {
"type": "string",
"required": False,
"empty": True,
"regex": "[0-9]+",
},
"native_vlan": {
"type": "string",
"required": False,
"empty": True,
"regex": "[0-9]+",
},
"allowed_vlans": {
"type": "string",
"required": False,
"empty": True,
},
"portfast": {
"type": "string",
"required": False,
"empty": True,
"allowed": ["yes", "no"],
},
"bpduguard": {
"type": "string",
"required": False,
"empty": True,
"allowed": ["yes", "no"],
},
"portsecurity": {
"type": "string",
"required": False,
"empty": True,
"allowed": ["yes", "no"],
},
"description": {"type": "string", "required": False, "empty": True},
},
},
},
}
def validate_config(schema: str) -> dict[str, Union[bool, dict]]:
v = Validator()
with open(file=schema, mode="rt", encoding="utf-8") as f:
document = json.load(f)
return {"is_validated": v.validate(document, json_schema), "errors": v.errors}