1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
import ./make-test-python.nix ({ pkgs, ... }:
let
deviceName = "rp0";
server = {
ip = "fe80::1";
wg = {
public = "mQufmDFeQQuU/fIaB2hHgluhjjm1ypK4hJr1cW3WqAw=";
secret = "4N5Y1dldqrpsbaEiY8O0XBUGUFf8vkvtBtm8AoOX7Eo=";
listen = 10000;
};
};
client = {
ip = "fe80::2";
wg = {
public = "Mb3GOlT7oS+F3JntVKiaD7SpHxLxNdtEmWz/9FMnRFU=";
secret = "uC5dfGMv7Oxf5UDfdPkj6rZiRZT2dRWp5x8IQxrNcUE=";
};
};
in
{
name = "rosenpass";
nodes =
let
shared = peer: { config, modulesPath, ... }: {
imports = [ "${modulesPath}/services/networking/rosenpass.nix" ];
boot.kernelModules = [ "wireguard" ];
services.rosenpass = {
enable = true;
defaultDevice = deviceName;
settings = {
verbosity = "Verbose";
public_key = "/etc/rosenpass/pqpk";
secret_key = "/etc/rosenpass/pqsk";
};
};
networking.firewall.allowedUDPPorts = [ 9999 ];
systemd.network = {
enable = true;
networks."rosenpass" = {
matchConfig.Name = deviceName;
networkConfig.IPForward = true;
address = [ "${peer.ip}/64" ];
};
netdevs."10-rp0" = {
netdevConfig = {
Kind = "wireguard";
Name = deviceName;
};
wireguardConfig.PrivateKeyFile = "/etc/wireguard/wgsk";
};
};
environment.etc."wireguard/wgsk" = {
text = peer.wg.secret;
user = "systemd-network";
group = "systemd-network";
};
};
in
{
server = {
imports = [ (shared server) ];
networking.firewall.allowedUDPPorts = [ server.wg.listen ];
systemd.network.netdevs."10-${deviceName}" = {
wireguardConfig.ListenPort = server.wg.listen;
wireguardPeers = [
{
AllowedIPs = [ "::/0" ];
PublicKey = client.wg.public;
}
];
};
services.rosenpass.settings = {
listen = [ "0.0.0.0:9999" ];
peers = [
{
public_key = "/etc/rosenpass/peers/client/pqpk";
peer = client.wg.public;
}
];
};
};
client = {
imports = [ (shared client) ];
systemd.network.netdevs."10-${deviceName}".wireguardPeers = [
{
AllowedIPs = [ "::/0" ];
PublicKey = server.wg.public;
Endpoint = "server:${builtins.toString server.wg.listen}";
}
];
services.rosenpass.settings.peers = [
{
public_key = "/etc/rosenpass/peers/server/pqpk";
endpoint = "server:9999";
peer = server.wg.public;
}
];
};
};
testScript = { ... }: ''
from os import system
# Full path to rosenpass in the store, to avoid fiddling with `$PATH`.
rosenpass = "${pkgs.rosenpass}/bin/rosenpass"
# Path in `/etc` where keys will be placed.
etc = "/etc/rosenpass"
start_all()
for machine in [server, client]:
machine.wait_for_unit("multi-user.target")
# Gently stop Rosenpass to avoid crashes during key generation/distribution.
for machine in [server, client]:
machine.execute("systemctl stop rosenpass.service")
for (name, machine, remote) in [("server", server, client), ("client", client, server)]:
pk, sk = f"{name}.pqpk", f"{name}.pqsk"
system(f"{rosenpass} gen-keys --force --secret-key {sk} --public-key {pk}")
machine.copy_from_host(sk, f"{etc}/pqsk")
machine.copy_from_host(pk, f"{etc}/pqpk")
remote.copy_from_host(pk, f"{etc}/peers/{name}/pqpk")
for machine in [server, client]:
machine.execute("systemctl start rosenpass.service")
for machine in [server, client]:
machine.wait_for_unit("rosenpass.service")
with subtest("ping"):
client.succeed("ping -c 2 -i 0.5 ${server.ip}%${deviceName}")
with subtest("preshared-keys"):
# Rosenpass works by setting the WireGuard preshared key at regular intervals.
# Thus, if it is not active, then no key will be set, and the output of `wg show` will contain "none".
# Otherwise, if it is active, then the key will be set and "none" will not be found in the output of `wg show`.
for machine in [server, client]:
machine.wait_until_succeeds("wg show all preshared-keys | grep --invert-match none", timeout=5)
'';
# NOTE: Below configuration is for "interactive" (=developing/debugging) only.
interactive.nodes =
let
inherit (import ./ssh-keys.nix pkgs) snakeOilPublicKey snakeOilPrivateKey;
sshAndKeyGeneration = {
services.openssh.enable = true;
users.users.root.openssh.authorizedKeys.keys = [ snakeOilPublicKey ];
environment.systemPackages = [
(pkgs.writeShellApplication {
name = "gen-keys";
runtimeInputs = [ pkgs.rosenpass ];
text = ''
HOST="$(hostname)"
if [ "$HOST" == "server" ]
then
PEER="client"
else
PEER="server"
fi
# Generate keypair.
mkdir -vp /etc/rosenpass/peers/$PEER
rosenpass gen-keys --force --secret-key /etc/rosenpass/pqsk --public-key /etc/rosenpass/pqpk
# Set up SSH key.
mkdir -p /root/.ssh
cp ${snakeOilPrivateKey} /root/.ssh/id_ecdsa
chmod 0400 /root/.ssh/id_ecdsa
# Copy public key to other peer.
# shellcheck disable=SC2029
ssh -o StrictHostKeyChecking=no $PEER "mkdir -pv /etc/rosenpass/peers/$HOST"
scp /etc/rosenpass/pqpk "$PEER:/etc/rosenpass/peers/$HOST/pqpk"
'';
})
];
};
# Use kmscon <https://www.freedesktop.org/wiki/Software/kmscon/>
# to provide a slightly nicer console, and while we're at it,
# also use a nice font.
# With kmscon, we can for example zoom in/out using [Ctrl] + [+]
# and [Ctrl] + [-]
niceConsoleAndAutologin.services.kmscon = {
enable = true;
autologinUser = "root";
fonts = [{
name = "Fira Code";
package = pkgs.fira-code;
}];
};
in
{
server = sshAndKeyGeneration // niceConsoleAndAutologin;
client = sshAndKeyGeneration // niceConsoleAndAutologin;
};
})
|
