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|
import ./make-test-python.nix ({ pkgs, ... }:
let inherit (import ./ssh-keys.nix pkgs)
snakeOilPrivateKey snakeOilPublicKey;
in {
name = "openssh";
meta = with pkgs.lib.maintainers; {
maintainers = [ aszlig eelco ];
};
nodes = {
server =
{ ... }:
{
services.openssh.enable = true;
security.pam.services.sshd.limits =
[ { domain = "*"; item = "memlock"; type = "-"; value = 1024; } ];
users.users.root.openssh.authorizedKeys.keys = [
snakeOilPublicKey
];
};
server-lazy =
{ ... }:
{
services.openssh = { enable = true; startWhenNeeded = true; };
security.pam.services.sshd.limits =
[ { domain = "*"; item = "memlock"; type = "-"; value = 1024; } ];
users.users.root.openssh.authorizedKeys.keys = [
snakeOilPublicKey
];
};
server-localhost-only =
{ ... }:
{
services.openssh = {
enable = true; listenAddresses = [ { addr = "127.0.0.1"; port = 22; } ];
};
};
server-localhost-only-lazy =
{ ... }:
{
services.openssh = {
enable = true; startWhenNeeded = true; listenAddresses = [ { addr = "127.0.0.1"; port = 22; } ];
};
};
server-match-rule =
{ ... }:
{
services.openssh = {
enable = true; listenAddresses = [ { addr = "127.0.0.1"; port = 22; } { addr = "[::]"; port = 22; } ];
extraConfig = ''
# Combined test for two (predictable) Match criterias
Match LocalAddress 127.0.0.1 LocalPort 22
PermitRootLogin yes
# Separate tests for Match criterias
Match User root
PermitRootLogin yes
Match Group root
PermitRootLogin yes
Match Host nohost.example
PermitRootLogin yes
Match LocalAddress 127.0.0.1
PermitRootLogin yes
Match LocalPort 22
PermitRootLogin yes
Match RDomain nohost.example
PermitRootLogin yes
Match Address 127.0.0.1
PermitRootLogin yes
'';
};
};
server_allowedusers =
{ ... }:
{
services.openssh = { enable = true; settings.AllowUsers = [ "alice" "bob" ]; };
users.groups = { alice = { }; bob = { }; carol = { }; };
users.users = {
alice = { isNormalUser = true; group = "alice"; openssh.authorizedKeys.keys = [ snakeOilPublicKey ]; };
bob = { isNormalUser = true; group = "bob"; openssh.authorizedKeys.keys = [ snakeOilPublicKey ]; };
carol = { isNormalUser = true; group = "carol"; openssh.authorizedKeys.keys = [ snakeOilPublicKey ]; };
};
};
client =
{ ... }: { };
};
testScript = ''
start_all()
server.wait_for_unit("sshd", timeout=30)
server_localhost_only.wait_for_unit("sshd", timeout=30)
server_match_rule.wait_for_unit("sshd", timeout=30)
server_lazy.wait_for_unit("sshd.socket", timeout=30)
server_localhost_only_lazy.wait_for_unit("sshd.socket", timeout=30)
with subtest("manual-authkey"):
client.succeed("mkdir -m 700 /root/.ssh")
client.succeed(
'${pkgs.openssh}/bin/ssh-keygen -t ed25519 -f /root/.ssh/id_ed25519 -N ""'
)
public_key = client.succeed(
"${pkgs.openssh}/bin/ssh-keygen -y -f /root/.ssh/id_ed25519"
)
public_key = public_key.strip()
client.succeed("chmod 600 /root/.ssh/id_ed25519")
server.succeed("mkdir -m 700 /root/.ssh")
server.succeed("echo '{}' > /root/.ssh/authorized_keys".format(public_key))
server_lazy.succeed("mkdir -m 700 /root/.ssh")
server_lazy.succeed("echo '{}' > /root/.ssh/authorized_keys".format(public_key))
client.wait_for_unit("network.target")
client.succeed(
"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no server 'echo hello world' >&2",
timeout=30
)
client.succeed(
"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no server 'ulimit -l' | grep 1024",
timeout=30
)
client.succeed(
"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no server-lazy 'echo hello world' >&2",
timeout=30
)
client.succeed(
"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no server-lazy 'ulimit -l' | grep 1024",
timeout=30
)
with subtest("configured-authkey"):
client.succeed(
"cat ${snakeOilPrivateKey} > privkey.snakeoil"
)
client.succeed("chmod 600 privkey.snakeoil")
client.succeed(
"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i privkey.snakeoil server true",
timeout=30
)
client.succeed(
"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i privkey.snakeoil server-lazy true",
timeout=30
)
with subtest("localhost-only"):
server_localhost_only.succeed("ss -nlt | grep '127.0.0.1:22'")
server_localhost_only_lazy.succeed("ss -nlt | grep '127.0.0.1:22'")
with subtest("match-rules"):
server_match_rule.succeed("ss -nlt | grep '127.0.0.1:22'")
with subtest("allowed-users"):
client.succeed(
"cat ${snakeOilPrivateKey} > privkey.snakeoil"
)
client.succeed("chmod 600 privkey.snakeoil")
client.succeed(
"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i privkey.snakeoil alice@server_allowedusers true",
timeout=30
)
client.succeed(
"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i privkey.snakeoil bob@server_allowedusers true",
timeout=30
)
client.fail(
"ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i privkey.snakeoil carol@server_allowedusers true",
timeout=30
)
'';
})
|
