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authorViacheslav Hletenko <v.gletenko@vyos.io>2022-07-04 18:16:06 +0000
committerViacheslav Hletenko <v.gletenko@vyos.io>2022-07-05 10:05:44 +0000
commit2bdf4798570222b57af2de2f0b443529abdc3feb (patch)
tree6c6415598e41eb0686a9d0fc0225b631ab867935 /src
parent7a09c9d4b3d74fd0c953f9f097ffecf4af8683d3 (diff)
downloadvyos-1x-2bdf4798570222b57af2de2f0b443529abdc3feb.tar.gz
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dns: T4509: Add dns64-prefix option
rfc6147: DNS Extensions for Network Address Translation from IPv6 Clients to IPv4 Servers set service dns forwarding dns64-prefix 2001:db8:aabb::/96
Diffstat (limited to 'src')
-rwxr-xr-xsrc/conf_mode/dns_forwarding.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/conf_mode/dns_forwarding.py b/src/conf_mode/dns_forwarding.py
index 41023c135..a96183b04 100755
--- a/src/conf_mode/dns_forwarding.py
+++ b/src/conf_mode/dns_forwarding.py
@@ -266,6 +266,12 @@ def verify(dns):
if 'server' not in dns['domain'][domain]:
raise ConfigError(f'No server configured for domain {domain}!')
+ if 'dns64_prefix' in dns:
+ dns_prefix = dns['dns64_prefix'].split('/')[1]
+ # RFC 6147 requires prefix /96
+ if int(dns_prefix) != 96:
+ raise ConfigError('DNS forwarding "dns64-prefix" must be /96')
+
if ('authoritative_zone_errors' in dns) and dns['authoritative_zone_errors']:
for error in dns['authoritative_zone_errors']:
print(error)