60 lines
1.3 KiB
Text
60 lines
1.3 KiB
Text
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#!/usr/bin/env python3
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from sys import argv
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from sys import stderr
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from sys import exit
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from os import path
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import nftables
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NFT = nftables.Nftables()
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FILTER_TABLE = "inet filter"
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try:
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NAME = path.basename(argv.pop(0))
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except IndexError:
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pass
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def error(message, exit_code):
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print("%s: %s" % (NAME, message), file = stderr)
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exit(exit_code)
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def alter_set(operation, protocol, port):
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NFT.cmd("%s element %s allowed_%s { %s }" % (operation, FILTER_TABLE, protocol, port))
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def public_allow(argv):
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try:
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protocol = argv.pop(0)
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except IndexError:
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error("no protocol supplied", 1)
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try:
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port = argv.pop(0)
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except IndexError:
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error("no port supplied", 1)
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alter_set('add', protocol, port)
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def public_deny(argv):
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try:
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protocol = argv.pop(0)
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except IndexError:
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error("no protocol supplied", 1)
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try:
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port = argv.pop(0)
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except IndexError:
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error("no port supplied", 1)
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alter_set('delete', protocol, port)
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if __name__ == '__main__':
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try:
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arg = argv.pop(0)
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except IndexError:
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error("No command supplied", 1)
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try:
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command = globals()["public_%s" % (arg)]
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except KeyError:
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error('invalid command "%s"' % (arg), 2)
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command(argv)
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