From 882bbfd606fd65f36951967a530d914a08f1b9a6 Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Mon, 15 May 2023 12:07:53 +0200
Subject: [PATCH 1/3] tv gitrepos: add nixpkgs

---
 tv/2configs/gitrepos.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tv/2configs/gitrepos.nix b/tv/2configs/gitrepos.nix
index eb87f26d1..58dffe6a6 100644
--- a/tv/2configs/gitrepos.nix
+++ b/tv/2configs/gitrepos.nix
@@ -96,6 +96,9 @@ with import ./lib;
     nix-writers = {
       cgit.desc = "collection of package builders";
     };
+    nixpkgs = {
+      cgit.desc = "Nix Packages collection";
+    };
     pager = {
     };
     populate = {

From e3c8492f30a2c73acfb43478d8ceb8c38d7fa777 Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Mon, 15 May 2023 13:31:19 +0200
Subject: [PATCH 2/3] tinc: use DynamicUser

---
 krebs/3modules/tinc.nix | 37 ++++++++++---------------------------
 1 file changed, 10 insertions(+), 27 deletions(-)

diff --git a/krebs/3modules/tinc.nix b/krebs/3modules/tinc.nix
index 52cdafe67..437f3b633 100644
--- a/krebs/3modules/tinc.nix
+++ b/krebs/3modules/tinc.nix
@@ -190,35 +190,16 @@ with import <stockholm/lib>;
           default = 3;
         };
 
-        user = mkOption {
-          type = types.user;
-          default = {
-            name = tinc.config.netname;
-            home = "/var/lib/${tinc.config.user.name}";
-          };
-          defaultText = {
-            name = "‹netname›";
-            home = "/var/lib/‹netname›";
-          };
+        username = mkOption {
+          type = types.username;
+          default = tinc.config.netname;
+          defaultText = literalExample "netname";
         };
       };
     }));
   };
 
   config = {
-    users.users = mapAttrs' (netname: cfg:
-      nameValuePair "${netname}" {
-        inherit (cfg.user) home name uid;
-        createHome = true;
-        isSystemUser = true;
-        group = netname;
-      }
-    ) config.krebs.tinc;
-
-    users.groups = mapAttrs' (netname: cfg:
-      nameValuePair netname {}
-    ) config.krebs.tinc;
-
     krebs.systemd.services = mapAttrs (netname: cfg: {
       restartIfCredentialsChange = true;
     }) config.krebs.tinc;
@@ -238,11 +219,11 @@ with import <stockholm/lib>;
           )
           "rsa_key.priv:${cfg.privkey}"
         ];
-        ExecStartPre = pkgs.writers.writeDash "init-tinc-${netname}" ''
+        ExecStartPre = "+" + pkgs.writers.writeDash "init-tinc-${netname}" ''
           set -efu
           ${pkgs.coreutils}/bin/mkdir -p /etc/tinc
           ${pkgs.rsync}/bin/rsync -Lacv --delete \
-            --chown ${cfg.user.name} \
+            --chown ${cfg.username} \
             --chmod u=rwX,g=rX \
             --exclude='/*.priv' \
             ${cfg.confDir}/ /etc/tinc/${netname}/
@@ -255,14 +236,16 @@ with import <stockholm/lib>;
               "$CREDENTIALS_DIRECTORY"/rsa_key.priv \
               /etc/tinc/${netname}/
         '';
-        ExecStart = toString [
+        ExecStart = "+" + toString [
           "${cfg.tincPackage}/sbin/tincd"
           "-D"
-          "-U ${cfg.user.name}"
+          "-U ${cfg.username}"
           "-d 0"
           "-n ${netname}"
         ];
         SyslogIdentifier = netname;
+        DynamicUser = true;
+        User = cfg.username;
       };
     }) config.krebs.tinc;
   };

From 24b9fc11d6c9345d39a0ec0f97d58cdbdbde7f0c Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Thu, 25 May 2023 13:17:57 +0200
Subject: [PATCH 3/3] cunicu: init at g3ed8109

---
 krebs/5pkgs/simple/cunicu.nix | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 krebs/5pkgs/simple/cunicu.nix

diff --git a/krebs/5pkgs/simple/cunicu.nix b/krebs/5pkgs/simple/cunicu.nix
new file mode 100644
index 000000000..4375a760c
--- /dev/null
+++ b/krebs/5pkgs/simple/cunicu.nix
@@ -0,0 +1,22 @@
+{ lib, pkgs }:
+
+pkgs.buildGo120Module rec {
+  pname = "cunicu";
+  version = "g${lib.substring 0 7 src.rev}";
+
+  buildInputs = [
+    pkgs.libpcap
+  ];
+
+  # XXX tries to access https://relay.cunicu.li
+  doCheck = false;
+
+  src = pkgs.fetchFromGitHub {
+    owner = "stv0g";
+    repo = "cunicu";
+    rev = "3ed8109bef97a10a438e5658c41823b7f812db8e";
+    hash = "sha256-FpOJ6/jmnbpufc+kgKwlLtFhOcc2CTe+FvqeV8WEGMc=";
+  };
+
+  vendorHash = "sha256-eAawhJK9K8/7FCQiYMI9XCPePYsCVF045Di7SpRZvL4=";
+}