From 3072e507eb1cdc18cfe5429fd0c03d223d2576fe Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Tue, 1 Nov 2022 22:35:48 +0100 Subject: openvpn: T3214: allow configuring server with v6 only Starting with v2.5.0 OpenVPN allows configuring a server with an IPv6 only tunnel. For this reason there is no need to depend on the existence of an IPv4 subnet anymore. Signed-off-by: Antonio Quartulli --- src/conf_mode/interfaces-openvpn.py | 3 --- 1 file changed, 3 deletions(-) (limited to 'src/conf_mode/interfaces-openvpn.py') diff --git a/src/conf_mode/interfaces-openvpn.py b/src/conf_mode/interfaces-openvpn.py index 8155f36c2..548ba4449 100755 --- a/src/conf_mode/interfaces-openvpn.py +++ b/src/conf_mode/interfaces-openvpn.py @@ -329,9 +329,6 @@ def verify(openvpn): if v6_subnets > 1: raise ConfigError('Cannot specify more than 1 IPv6 server subnet') - if v6_subnets > 0 and v4_subnets == 0: - raise ConfigError('IPv6 server requires an IPv4 server subnet') - for subnet in tmp: if is_ipv4(subnet): subnet = IPv4Network(subnet) -- cgit v1.2.3 From 7a0e40ce8df386c0ea2de84bce8fb6c81a0353ce Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Tue, 1 Nov 2022 22:43:46 +0100 Subject: openvpn: T3214: warn when setting nopool and server-ipv6 is being used Currently OpenVPN does not allow having an IPv6 subnet if 'nopool' was specified on the --server directive. For this eason warn if this specific configuration is being hit. This is probably something that should be fixed upstream, but for now we can't allow this combination of parameters. Signed-off-by: Antonio Quartulli --- src/conf_mode/interfaces-openvpn.py | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/conf_mode/interfaces-openvpn.py') diff --git a/src/conf_mode/interfaces-openvpn.py b/src/conf_mode/interfaces-openvpn.py index 548ba4449..a06154761 100755 --- a/src/conf_mode/interfaces-openvpn.py +++ b/src/conf_mode/interfaces-openvpn.py @@ -370,6 +370,10 @@ def verify(openvpn): for v4PoolNet in v4PoolNets: if IPv4Address(client['ip'][0]) in v4PoolNet: print(f'Warning: Client "{client["name"]}" IP {client["ip"][0]} is in server IP pool, it is not reserved for this client.') + # configuring a client_ip_pool will set 'server ... nopool' which is currently incompatible with 'server-ipv6' (probably to be fixed upstream) + for subnet in (dict_search('server.subnet', openvpn) or []): + if is_ipv6(subnet): + raise ConfigError(f'Setting client-ip-pool is incompatible having an IPv6 server subnet.') for subnet in (dict_search('server.subnet', openvpn) or []): if is_ipv6(subnet): -- cgit v1.2.3