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# -- coding: utf-8 -- # # Copyright (C) 2017 Red Hat, Inc. # # Authors: # Thomas Woerner <twoerner@redhat.com> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # 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/>. # __all__ = [ "ICMP_TYPES", "ICMPV6_TYPES", "check_icmp_type", "check_icmpv6_type" ] ICMP_TYPES = { # "type": (type, code, backend omit code) "echo-reply": (0, 0, True), "pong": (0, 0, True), "destination-unreachable": (3, 0, True), "network-unreachable": (3, 0, False), "tos-network-unreachable": (3, 0, False), "host-unreachable": (3, 1, False), "tos-host-unreachable": (3, 1, False), "protocol-unreachable": (3, 2, False), "port-unreachable": (3, 3, False), "fragmentation-needed": (3, 4, False), "source-route-failed": (3, 5, False), # RFC-1112 Section 3.2.2.1 defines type 3, code 6-12 "network-unknown": (3, 6, False), "host-unknown": (3, 7, False), "network-prohibited": (3, 9, False), "host-prohibited": (3, 10, False), "TOS-network-unreachable": (3, 11, False), "TOS-host-unreachable": (3, 12, False), # RFC-1812 Section 5.2.7.1 defines type 3, code 13-15 "communication-prohibited": (3, 13, False), "host-precedence-violation": (3, 14, False), "precedence-cutoff": (3, 15, False), "source-quench": (4, 0, True), "network-redirect": (5, 0, False), "redirect": (5, 0, True), "host-redirect": (5, 1, False), "tos-host-redirect": (5, 1, False), "TOS-network-redirect": (5, 2, False), "tos-network-redirect": (5, 2, False), "TOS-host-redirect": (5, 3, False), "echo-request": (8, 0, True), "ping": (8, 0, True), "router-advertisement": (9, 0, True), "router-solicitation": (10, 0, True), "time-exceeded": (11, 0, True), "ttl-zero-during-transit": (11, 0, False), "ttl-zero-during-reassembly": (11, 1, False), "parameter-problem": (12, 0, True), "ip-header-bad": (12, 0, False), "required-option-missing": (12, 1, False), "timestamp-request": (13, 0, True), "timestamp-reply": (14, 0, True), "address-mask-request": (17, 0, False), "address-mask-reply": (18, 0, False), } ICMPV6_TYPES = { # "type": (type, code, backend omit code) "destination-unreachable": (1, 0, True), "no-route": (1, 0, False), "communication-prohibited": (1, 1, False), "beyond-scope": (1, 2, False), "address-unreachable": (1, 3, False), "port-unreachable": (1, 4, False), "failed-policy": (1, 5, False), "reject-route": (1, 6, False), "packet-too-big": (2, 0, True), "time-exceeded": (3, 0, True), "ttl-zero-during-transit": (3, 0, False), "ttl-zero-during-reassembly": (3, 1, False), "parameter-problem": (4, 0, True), "bad-header": (4, 0, False), "unknown-header-type": (4, 1, False), "unknown-option": (4, 2, False), "echo-request": (128, 0, True), "ping": (128, 0, True), "echo-reply": (129, 0, True), "pong": (129, 0, True), "router-solicitation": (133, 0, True), "router-advertisement": (134, 0, True), "neighbour-solicitation": (135, 0, True), "neigbour-solicitation": (135, 0, True), "neighbour-advertisement": (136, 0, True), "neigbour-advertisement": (136, 0, True), "redirect": (137, 0, True), # MLD is RFC-2710 "mld-listener-query": (130, 0, True), "mld-listener-report": (131, 0, True), "mld-listener-done": (132, 0, True), # MLDv2 is RFC-9777 "mld2-listener-report": (143, 0, True), } def check_icmp_name(_name): if _name in ICMP_TYPES: return True return False def check_icmp_type_code(_type, _code): if (_type, _code) in ICMP_TYPES.values(): return True return False def check_icmpv6_name(_name): if _name in ICMPV6_TYPES: return True return False def check_icmpv6_type_code(_type, _code): if (_type, _code) in ICMPV6_TYPES.values(): return True return False