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|
{ config, lib, pkgs, ... }:
with lib;
let
pppInterface = config.networking.pppInterface;
in {
options = {
networking.pppInterface = mkOption {
type = types.str;
default = "ppp";
};
};
config = {
networking.vlans = {
telekom = {
id = 7;
interface = "eno2";
};
};
services.pppd = {
enable = true;
peers.telekom.config = ''
nodefaultroute
ifname ${pppInterface}
lcp-echo-adaptive
lcp-echo-failure 10
lcp-echo-interval 1
maxfail 0
mtu 1492
mru 1492
plugin pppoe.so
user congstar
password congstar
nic-telekom
debug
+ipv6
'';
};
systemd.services."pppd-telekom" = {
stopIfChanged = true;
serviceConfig = {
Type = lib.mkForce "notify";
ExecStart = lib.mkForce "${getBin config.services.pppd.package}/sbin/pppd call telekom up_sdnotify nolog";
PIDFile = "/run/pppd/${pppInterface}.pid";
};
restartTriggers = with config; [
environment.etc."ppp/ip-pre-up".source
environment.etc."ppp/ip-up".source
environment.etc."ppp/ip-down".source
];
};
environment.etc = {
"ppp/ip-pre-up".source = pkgs.resholve.writeScript "ip-pre-up" {
interpreter = pkgs.runtimeShell;
inputs = [ pkgs.iproute2 pkgs.ethtool ];
execer = [
"cannot:${lib.getExe' pkgs.iproute2 "ip"}"
"cannot:${lib.getExe' pkgs.iproute2 "tc"}"
];
} ''
ethtool -K telekom tso off gso off gro off
ip link del "ifb4${pppInterface}" || true
ip link add name "ifb4${pppInterface}" type ifb
ip link set "ifb4${pppInterface}" up
tc qdisc del dev "ifb4${pppInterface}" root || true
tc qdisc del dev "${pppInterface}" ingress || true
tc qdisc del dev "${pppInterface}" root || true
tc qdisc add dev "${pppInterface}" handle ffff: ingress
tc filter add dev "${pppInterface}" parent ffff: basic action ctinfo dscp 0x0000003f 0x00000040 action mirred egress redirect dev "ifb4${pppInterface}"
tc qdisc replace dev "ifb4${pppInterface}" root cake memlimit 128Mb overhead 35 mpu 74 regional diffserv4 bandwidth ${toString (builtins.floor (177968 * 0.95))}kbit
tc qdisc replace dev "${pppInterface}" root cake memlimit 128Mb overhead 35 mpu 74 regional nat diffserv4 wash bandwidth ${toString (builtins.floor (41216 * 0.95))}kbit
'';
"ppp/ip-up".source = pkgs.resholve.writeScript "ip-up" {
interpreter = pkgs.runtimeShell;
inputs = [ pkgs.iproute2 ];
execer = [ "cannot:${lib.getExe' pkgs.iproute2 "ip"}" ];
} ''
ip route add default via "$5" dev "${pppInterface}" metric 512
'';
"ppp/ip-down".source = pkgs.resholve.writeScript "ip-down" {
interpreter = pkgs.runtimeShell;
inputs = [ pkgs.iproute2 ];
execer = [ "cannot:${lib.getExe' pkgs.iproute2 "ip"}" ];
} ''
ip link del "ifb4${pppInterface}"
'';
};
systemd.network.networks.${pppInterface} = {
matchConfig = {
Name = pppInterface;
};
dns = [ "::1" "127.0.0.1" ];
domains = [ "~." ];
networkConfig = {
LinkLocalAddressing = "no";
DNSSEC = true;
};
};
services.ndppd = {
enable = true;
proxies = {
${pppInterface} = {
router = true;
rules = {
lan = {
method = "iface";
interface = "lan";
network = "::/0";
};
};
};
};
};
boot.kernelModules = [ "ifb" ];
boot.kernel.sysctl = {
"net.ipv6.conf.all.forwarding" = true;
"net.ipv6.conf.default.forwarding" = true;
"net.ipv4.conf.all.forwarding" = true;
"net.ipv4.conf.default.forwarding" = true;
"net.core.rmem_max" = 4194304;
"net.core.wmem_max" = 4194304;
};
systemd.services."pppd-telekom" = {
bindsTo = [ "sys-subsystem-net-devices-telekom.device" ];
after = [ "sys-subsystem-net-devices-telekom.device" ];
};
networking.interfaces.${pppInterface}.useDHCP = true;
networking.dhcpcd = {
enable = true;
persistent = false;
setHostname = false;
wait = "ipv6";
IPv6rs = false;
extraConfig = ''
duid
vendorclassid
ipv6only
require dhcp_server_identifier
reboot 0
interface ${pppInterface}
nooption domain_name_servers, domain_name, domain_search, ntp_servers
nohook hostname, resolv.conf
option rapid_commit
ipv6rs
ia_pd 1 lan/0/64/0
'';
};
systemd.services.dhcpcd = {
wantedBy = [ "multi-user.target" "network-online.target" "pppd-telekom.service" ];
bindsTo = [ "pppd-telekom.service" ];
after = [ "pppd-telekom.service" ];
wants = [ "network.target" ];
before = [ "network-online.target" ];
serviceConfig = {
ExecStartPre = [
(pkgs.resholve.writeScript "wait-${pppInterface}-ip" {
interpreter = pkgs.runtimeShell;
inputs = with pkgs; [ iproute2 coreutils ];
execer = [
"cannot:${lib.getExe' pkgs.iproute2 "ip"}"
];
} ''
i=0
while [[ -z "$(ip -6 addr show dev ${pppInterface} scope link)" ]]; do
sleep 0.1
i=$((i + 1))
if [[ "$i" -ge 10 ]]; then
exit 1
fi
done
'')
];
RestartSec = "5";
};
};
systemd.services.ndppd = {
wantedBy = [ "dhcpcd.service" ];
bindsTo = [ "dhcpcd.service" ];
after = [ "dhcpcd.service" ];
serviceConfig = {
Restart = "always";
RestartSec = "5";
};
};
systemd.services.radvd = {
wantedBy = [ "dhcpcd.service" "multi-user.target" ];
bindsTo = [ "dhcpcd.service" ];
after = [ "dhcpcd.service" "network.target" ];
serviceConfig = {
Restart = "always";
RestartSec = "5";
DynamicUser = true;
AmbientCapabilities = ["CAP_NET_ADMIN" "CAP_NET_RAW"];
CapabilityBoundingSet = ["CAP_NET_ADMIN" "CAP_NET_RAW"];
RuntimeDirectory = "radvd";
PIDFile = "$RUNTIME_DIRECTORY/radvd.pid";
ExecStart = pkgs.writers.writePython3 "radvd-genconfig" {
libraries = with pkgs.python3Packages; [ jinja2 ];
doCheck = false;
} ''
import os
from tempfile import NamedTemporaryFile
import subprocess
import json
import jinja2
from pathlib import Path
from ipaddress import IPv6Network
def network_address(value, prefixlen):
return IPv6Network(value + "/" + str(prefixlen), strict=False).network_address
with subprocess.Popen(["${lib.getExe' pkgs.iproute2 "ip"}", "-j", "addr", "show", "dev", "lan"], stdout=subprocess.PIPE) as proc:
addresses = json.load(proc.stdout)
global_addresses = [ addr for addr in addresses[0]["addr_info"] if addr["family"] == "inet6" and addr["scope"] == "global" ]
if not global_addresses:
sys.exit(1)
with NamedTemporaryFile(mode='w', dir=os.environ["RUNTIME_DIRECTORY"], prefix="radvd.", suffix=".conf", delete=False) as fh:
config_file = fh.name
env = jinja2.Environment(
loader = jinja2.FileSystemLoader("${pkgs.writeTextDir "radvd.conf.jinja2" ''
interface lan {
IgnoreIfMissing off;
AdvSendAdvert on;
MaxRtrAdvInterval 240;
{% for addr in addrs %}
prefix {{addr["local"] | network_address(addr["prefixlen"])}}/{{addr["prefixlen"]}} {
AdvValidLifetime 86400;
AdvPreferredLifetime 300;
DeprecatePrefix on;
};
route {{addr["local"] | network_address(56)}}/56 {
AdvRouteLifetime 300;
RemoveRoute on;
};
RDNSS {{addr["local"]}} {
AdvRDNSSLifetime 300;
};
{%- endfor %}
DNSSL yggdrasil {};
};
''}"),
autoescape = False,
)
env.filters["network_address"] = network_address
env.get_template("radvd.conf.jinja2").stream({
"addrs": global_addresses,
}).dump(fh)
os.execv("${lib.getExe' pkgs.radvd "radvd"}", ["radvd", "-n", "-p", str(Path(os.environ["RUNTIME_DIRECTORY"]) / "radvd.pid"), "-d", "1", "-C", config_file])
'';
};
};
systemd.services.unbound = {
wantedBy = [ "dhcpcd.service" ];
bindsTo = [ "dhcpcd.service" ];
after = [ "dhcpcd.service" ];
serviceConfig = {
Restart = lib.mkForce "always";
};
};
};
}
|
