root / manifests / rules / out / icmp.pp @ fc8e52ed
Historique | Voir | Annoter | Télécharger (1,51 ko)
| 1 |
# @summary control outbound icmp packages |
|---|---|
| 2 |
# |
| 3 |
# @param v4_types ICMP v4 types that should be allowed |
| 4 |
# @param v6_types ICMP v6 types that should be allowed |
| 5 |
# @param order the ordering of the rules |
| 6 |
# |
| 7 |
class nftables::rules::out::icmp ( |
| 8 |
Optional[Array[String]] $v4_types = undef, |
| 9 |
Optional[Array[String]] $v6_types = undef, |
| 10 |
String $order = '10', |
| 11 |
) {
|
| 12 |
if $v4_types {
|
| 13 |
$v4_types.each | String $icmp_type | {
|
| 14 |
nftables::rule { 'default_out-accept_icmpv4':
|
| 15 |
content => "ip protocol icmp icmp type ${icmp_type} accept",
|
| 16 |
order => $order, |
| 17 |
} |
| 18 |
} |
| 19 |
} elsif $v6_types {
|
| 20 |
nftables::rule { 'default_out-accept_icmpv4':
|
| 21 |
content => 'ip protocol icmp accept', |
| 22 |
order => $order, |
| 23 |
} |
| 24 |
} |
| 25 |
|
| 26 |
if $v6_types {
|
| 27 |
$v6_types.each | String $icmp_type | {
|
| 28 |
nftables::rule { 'default_out-accept_icmpv6':
|
| 29 |
content => "ip6 nexthdr ipv6-icmp icmpv6 type ${icmp_type} accept",
|
| 30 |
order => $order, |
| 31 |
} |
| 32 |
} |
| 33 |
} elsif $v4_types {
|
| 34 |
# `ip6 nexthdr ipv6-icmp accept` doesn't match for IPv6 ICMP with extensions |
| 35 |
# context: https://www.rfc-editor.org/rfc/rfc3810#section-5 |
| 36 |
# https://wiki.nftables.org/wiki-nftables/index.php/Matching_packet_headers#Matching_IPv6_headers |
| 37 |
nftables::rule { 'default_out-accept_icmpv6':
|
| 38 |
content => 'meta l4proto icmpv6 accept', |
| 39 |
order => $order, |
| 40 |
} |
| 41 |
} |
| 42 |
|
| 43 |
if $v6_types == undef and $v4_types == undef {
|
| 44 |
nftables::rule { 'default_out-accept_icmp':
|
| 45 |
content => 'meta l4proto { icmp, icmpv6} accept',
|
| 46 |
order => $order, |
| 47 |
} |
| 48 |
} |
| 49 |
} |