Initial versionHEADmaster

This was taken from nixturris.

6 files changed, 275 insertions, 0 deletions

diff --git a/nixos/default.nix b/nixos/default.nix
new file mode 100644
index 0000000..b95e12a
--- /dev/null
+++ b/nixos/default.nix
@@ -0,0 +1,5 @@
+{
+  sentinel = import ./modules/sentinel.nix;
+  sentinel-fwlogs = import ./modules/sentinel-fwlogs.nix;
+  sentinel-minipot = import ./modules/sentinel-minipot.nix;
+}
diff --git a/nixos/modules/sentinel-faillogs.nix b/nixos/modules/sentinel-faillogs.nix
new file mode 100644
index 0000000..93ade14
--- /dev/null
+++ b/nixos/modules/sentinel-faillogs.nix
@@ -0,0 +1,36 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+{
+
+  imports = [ ./sentinel.nix ];
+
+
+  options = {
+    services.sentinel.faillogs = {
+        enable = mkOption {
+          type = types.bool;
+          default = true;
+          description = ''
+            Whether to enable the Turris Sentinel Fail logs collector.
+            The services.sentinel.enable has to be enabled as well.
+          '';
+        };
+      };
+  };
+
+
+  config = mkIf config.services.sentinel.enable && config.services.sentinel.faillogs.enable {
+    environment.systemPackages = [ pkgs.sentinel-faillogs ];
+
+    systemd.services.sentinel-faillogs = {
+      description = "Turris Sentinel Fail Logs";
+      wantedBy = [ "multi-user.target" ];
+      path = [ pkgs.sentinel-faillogs ];
+      serviceConfig.ExecStart = "${pkgs.sentinel-faillogs}/bin/sentinel-faillogs";
+    };
+
+  };
+
+}
diff --git a/nixos/modules/sentinel-fwlogs.nix b/nixos/modules/sentinel-fwlogs.nix
new file mode 100644
index 0000000..d2bc864
--- /dev/null
+++ b/nixos/modules/sentinel-fwlogs.nix
@@ -0,0 +1,41 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+{
+
+  imports = [ ./sentinel.nix ];
+
+
+  options = {
+    services.sentinel.fwlogs = {
+        enable = mkOption {
+          type = types.bool;
+          default = true;
+          description = ''
+            Whether to enable the Turris Sentinel Firewall logs collector.
+            The services.sentinel.enable has to be enabled as well.
+          '';
+        };
+        nflog-group = mkOption {
+          type = types.port;
+          default = 1914;
+          description = "Netfilter log group used to pass logs to sentinel-fwlogs.";
+        };
+      };
+  };
+
+
+  config = mkIf config.services.sentinel.enable && config.services.sentinel.fwlogs.enable {
+    environment.systemPackages = [ pkgs.sentinel-fwlogs ];
+
+    systemd.services.sentinel-fwlogs = {
+      description = "Turris Sentinel Firewall Logs";
+      wantedBy = [ "multi-user.target" ];
+      path = [ pkgs.sentinel-fwlogs ];
+      serviceConfig.ExecStart = "${pkgs.sentinel-fwlogs}/bin/sentinel-fwlogs";
+    };
+
+  };
+
+}
diff --git a/nixos/modules/sentinel-minipot.nix b/nixos/modules/sentinel-minipot.nix
new file mode 100644
index 0000000..8dcf370
--- /dev/null
+++ b/nixos/modules/sentinel-minipot.nix
@@ -0,0 +1,72 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cnf = config.sentinel.minipot;
+  inherit (pkgs) sentinel-minipot;
+
+  minipotOpts = { name, port }: {
+    enable = mkOption {
+      type = types.bool;
+      default = true;
+      description = ''
+        Whether to enable the Turris Sentinel ${name} Minipot.
+        The services.sentinel.enable and service.sentinel.minipot.enable have to be enabled as well.
+      '';
+    };
+    port = mkOption {
+      type = types.port;
+      default = port;
+      description = "The port ${name} minipot should bind to.";
+    };
+  };
+
+in {
+
+  imports = [ ./sentinel.nix ];
+
+  options = {
+    services.sentinel.minipot = {
+      enable = mkOption {
+        type = types.bool;
+        default = true;
+        description = ''
+          Whether to enable the Turris Sentinel Minipot system.
+          The services.sentinel.enable has to be enabled as well.
+        '';
+      };
+
+      http = minipotOpts { name = "HTTP"; port = 8033; };
+      ftp = minipotOpts { name = "FTP"; port = 2133; };
+      smtp = minipotOpts { name = "SMTP"; port = 5873; };
+      telnet = minipotOpts { name = "Telnet"; port = 2333; };
+    };
+  };
+
+
+  config = mkIf (config.services.sentinel.enable && cnf.enable) {
+    assertions = [
+      {
+        assertion = cnf.http.enable || cnf.ftp.enable || cnf.smtp.enable || cnf.telnet.enable;
+        message = "Sentinel minipot requires at least one of the protocols to be enabled";
+      }
+    ];
+
+    environment.systemPackages = [ sentinel-minipot ];
+
+    systemd.services.sentinel-minipot = {
+      description = "Turris Sentinel Minipot";
+      wantedBy = [ "multi-user.target" ];
+      path = [ sentinel-minipot ];
+      serviceConfig.ExecStart = "${sentinel-minipot}/bin/sentinel-minipot"
+        + optionalString cnf.http.enable " --http=${cnf.http.port}"
+        + optionalString cnf.ftp.enable " --ftp=${cnf.ftp.port}"
+        + optionalString cnf.smtp.enable " --smtp=${cnf.smtp.port}"
+        + optionalString cnf.telnet.enable " --telnet=${cnf.telnet.port}";
+    };
+
+  };
+
+}
diff --git a/nixos/modules/sentinel.nix b/nixos/modules/sentinel.nix
new file mode 100644
index 0000000..19ef746
--- /dev/null
+++ b/nixos/modules/sentinel.nix
@@ -0,0 +1,60 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cnf = config.sentinel;
+
+in {
+
+  options = {
+
+    services.sentinel = {
+
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Whether to enable the Turris Sentinel attact prevention system.
+        '';
+      };
+      deviceToken = mkOption {
+        type = types.str;
+        description = ''
+          Turris Sentinel token. You can use `sentinel-device-token -c` to get new one.
+        '';
+      };
+      sentinelCA = mkOption {
+        type = types.path;
+        default = ../sentinel-ca.pem;
+        description = ''
+          The CA certificate used with Sentinel.
+          Most of the times you do not want to modify this as it uses the
+          certificate shipped with NixOS modules.
+        '';
+      };
+
+    };
+
+  };
+
+
+  config = mkIf config.services.sentinel.enable {
+    environment.systemPackages = with pkgs; [
+      sentinel-proxy sentinel-certgen
+    ];
+
+    # TODO we should probably rather pass token using configuration file
+    systemd.services.sentinel-proxy = {
+      description = "Turris Sentinel proxy";
+      wantedBy = [ "multi-user.target" ];
+      path = [ sentinel-proxy ];
+      serviceConfig.ExecStart = "${sentinel-proxy}/bin/sentinel-proxy"
+        + "--ca=${cnf.sentinelCA}"
+        + " --token=${cnf.deviceToken}";
+    };
+
+  };
+
+}
diff --git a/nixos/sentinel-ca.pem b/nixos/sentinel-ca.pem
new file mode 100644
index 0000000..8c1f6a5
--- /dev/null
+++ b/nixos/sentinel-ca.pem
@@ -0,0 +1,61 @@
+################################################################
+(Development) Sentinel CA
+
+-----BEGIN CERTIFICATE-----
+MIIGsDCCBJigAwIBAgIJAM3oziL/qM4GMA0GCSqGSIb3DQEBCwUAMIGWMQswCQYD
+VQQGEwJDWjELMAkGA1UECBMCQ1oxDzANBgNVBAcTBlByYWd1ZTEPMA0GA1UEChMG
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++SZimokYV8q+L9XhyY6Y7Q7d9Szdm269J6FrPqih15AvpnTf
+-----END CERTIFICATE-----
+
+################################################################
+Sentinel Root CA X1
+
+-----BEGIN CERTIFICATE-----
+MIICbjCCAfWgAwIBAgIUJyxjDM9S/kHOqDp2PHlTOKUwuyQwCgYIKoZIzj0EAwMw
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+onY=
+-----END CERTIFICATE-----