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Add Cotrun so matrix calls can work behind NAT

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This commit is contained in:
Paul-Henri Froidmont 2022-07-27 02:37:42 +02:00
parent ed63967bcd
commit 9e918d5685
Signed by: phfroidmont
GPG key ID: BE948AFD7E7873BE
5 changed files with 95 additions and 13 deletions
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80
modules/synapse.nix
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@ -14,6 +14,7 @@ let
user: "synapse"
password: "SYNAPSE_DB_PASSWORD"
macaroon_secret_key: "MACAROON_SECRET_KEY"
turn_shared_secret: "TURN_SHARED_SECRET"
'';
in
{
@ -82,6 +83,13 @@ in
key = "synapse/macaroon_secret_key";
restartUnits = [ "matrix-synapse-setup" ];
};
turnSharedSecret = {
owner = config.systemd.services.matrix-synapse.serviceConfig.User;
group = "turnserver";
mode = "0440";
key = "synapse/turn_shared_secret";
restartUnits = [ "matrix-synapse-setup" "coturn" ];
};
};
systemd.services.matrix-synapse-setup = {
@ -92,6 +100,7 @@ in
install -m 600 ${synapseDbConfig} /run/synapse/synapse-db-config.yaml
${pkgs.replace-secret}/bin/replace-secret 'SYNAPSE_DB_PASSWORD' '${config.sops.secrets.synapseDbPassword.path}' /run/synapse/synapse-db-config.yaml
${pkgs.replace-secret}/bin/replace-secret 'MACAROON_SECRET_KEY' '${config.sops.secrets.macaroonSecretKey.path}' /run/synapse/synapse-db-config.yaml
${pkgs.replace-secret}/bin/replace-secret 'TURN_SHARED_SECRET' '${config.sops.secrets.turnSharedSecret.path}' /run/synapse/synapse-db-config.yaml
'';
serviceConfig = {
@ -108,7 +117,7 @@ in
bindsTo = [ "matrix-synapse-setup.service" ];
};
services.matrix-synapse = {
services.matrix-synapse = with config.services.coturn; {
enable = true;
settings = {
server_name = config.networking.domain;
@ -128,17 +137,80 @@ in
];
}
];
database = {
name = "psycopg2";
args = {
host = "fake"; # This section is overriden by "extraConfigFiles"
};
};
turn_uris = [ "turn:${realm}:3478?transport=udp" "turn:${realm}:3478?transport=tcp" ];
turn_user_lifetime = "1h";
};
dataDir = "/nix/var/data/matrix-synapse";
extraConfigFiles = [ "/run/synapse/synapse-db-config.yaml" ];
};
services.coturn = rec {
enable = true;
no-cli = true;
no-tcp-relay = true;
min-port = 49000;
max-port = 50000;
use-auth-secret = true;
static-auth-secret-file = config.sops.secrets.turnSharedSecret.path;
realm = "turn.${config.networking.domain}";
cert = "${config.security.acme.certs.${realm}.directory}/full.pem";
pkey = "${config.security.acme.certs.${realm}.directory}/key.pem";
extraConfig = ''
# for debugging
verbose
# ban private IP ranges
no-multicast-peers
denied-peer-ip=0.0.0.0-0.255.255.255
denied-peer-ip=10.0.0.0-10.255.255.255
denied-peer-ip=100.64.0.0-100.127.255.255
denied-peer-ip=127.0.0.0-127.255.255.255
denied-peer-ip=169.254.0.0-169.254.255.255
denied-peer-ip=172.16.0.0-172.31.255.255
denied-peer-ip=192.0.0.0-192.0.0.255
denied-peer-ip=192.0.2.0-192.0.2.255
denied-peer-ip=192.88.99.0-192.88.99.255
denied-peer-ip=192.168.0.0-192.168.255.255
denied-peer-ip=198.18.0.0-198.19.255.255
denied-peer-ip=198.51.100.0-198.51.100.255
denied-peer-ip=203.0.113.0-203.0.113.255
denied-peer-ip=240.0.0.0-255.255.255.255
denied-peer-ip=::1
denied-peer-ip=64:ff9b::-64:ff9b::ffff:ffff
denied-peer-ip=::ffff:0.0.0.0-::ffff:255.255.255.255
denied-peer-ip=100::-100::ffff:ffff:ffff:ffff
denied-peer-ip=2001::-2001:1ff:ffff:ffff:ffff:ffff:ffff:ffff
denied-peer-ip=2002::-2002:ffff:ffff:ffff:ffff:ffff:ffff:ffff
denied-peer-ip=fc00::-fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
denied-peer-ip=fe80::-febf:ffff:ffff:ffff:ffff:ffff:ffff:ffff
'';
};
networking.firewall = {
interfaces.enp2s0 =
let
range = with config.services.coturn; [{
from = min-port;
to = max-port;
}];
in
{
allowedUDPPortRanges = range;
allowedUDPPorts = [ 3478 ];
allowedTCPPortRanges = range;
allowedTCPPorts = [ 3478 ];
};
};
security.acme.certs.${config.services.coturn.realm} = {
postRun = "systemctl restart coturn.service";
group = "turnserver";
};
}