30 lines
1.2 KiB
Python
30 lines
1.2 KiB
Python
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import requests
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import argparse
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import sys
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def check_as_path(prefix, as_to_check):
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url = f'https://stat.ripe.net/data/looking-glass/data.json?resource={prefix}'
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response = requests.get(url)
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if response.ok:
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data = response.json()
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for rrc in data['data']['rrcs']:
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for peer in rrc['peers']:
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as_path = peer['as_path']
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if as_to_check in as_path:
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print(f"CRITICAL: AS {as_to_check} found in AS path for prefix {prefix} at RRC {rrc['rrc']}")
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return 2 # return critical
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print(f"OK: AS {as_to_check} not found in AS path for prefix {prefix}")
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return 0 # return OK
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else:
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print(f"UNKNOWN: Error fetching data from {url}")
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return 3 # return unknown
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='Check if a certain AS is in the AS path for any peers for a given prefix')
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parser.add_argument('--prefix', required=True, help='IPv4 prefix to check')
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parser.add_argument('--asn', required=True, help='AS number to check for')
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args = parser.parse_args()
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exit_code = check_as_path(args.prefix, args.asn)
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sys.exit(exit_code)
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