6 files changed, 141 insertions, 0 deletions
diff --git a/krebs/5pkgs/default.nix b/krebs/5pkgs/default.nix
new file mode 100644
index 000000000..231fda797
--- /dev/null
+++ b/krebs/5pkgs/default.nix
@@ -0,0 +1,14 @@
+{ pkgs, ... }:
+
+let
+  inherit (pkgs) callPackage;
+in
+
+pkgs //
+{
+  dic = callPackage ./dic.nix {};
+  genid = callPackage ./genid.nix {};
+  github-hosts-sync = callPackage ./github-hosts-sync.nix {};
+  github-known_hosts = callPackage ./github-known_hosts.nix {};
+  hashPassword = callPackage ./hashPassword.nix {};
+}
diff --git a/krebs/5pkgs/dic.nix b/krebs/5pkgs/dic.nix
new file mode 100644
index 000000000..571773d22
--- /dev/null
+++ b/krebs/5pkgs/dic.nix
@@ -0,0 +1,36 @@
+{ stdenv, fetchgit, coreutils, curl, gnused, gnugrep, ... }:
+
+stdenv.mkDerivation {
+  name = "dic";
+
+  src = fetchgit {
+    url = https://github.com/krebscode/painload;
+    rev = "35ccac73d563ad30d2851b9aeed4cfef69ff74e3";
+    sha256 = "1y1fs2p3xj2yrqpw0h5kd0f3c5p1y70xk1hjnw99sr33r67s9c35";
+  };
+
+  phases = [
+    "unpackPhase"
+    "installPhase"
+  ];
+
+  installPhase =
+    let
+      path = stdenv.lib.makeSearchPath "bin" [
+        coreutils
+        curl
+        gnused
+        gnugrep
+      ];
+    in
+    ''
+      mkdir -p $out/bin
+
+      sed \
+        's,^main() {$,&\n  PATH=${path}; export PATH,' \
+        < ./util/bin/dic \
+        > $out/bin/dic
+
+      chmod +x $out/bin/dic
+    '';
+}
diff --git a/krebs/5pkgs/genid.nix b/krebs/5pkgs/genid.nix
new file mode 100644
index 000000000..c75bec317
--- /dev/null
+++ b/krebs/5pkgs/genid.nix
@@ -0,0 +1,22 @@
+{ lib, pkgs, ... }:
+
+pkgs.writeScriptBin "genid" ''
+  #! /bin/sh
+  # usage: genid NAME
+  set -euf
+
+  export PATH=${lib.makeSearchPath "bin" (with pkgs; [
+    bc
+    coreutils
+  ])}
+
+  name=$1
+  hash=$(printf %s "$name" | sha1sum | cut -d\  -f1 | tr a-f A-F)
+  echo "
+    min=2^24  # bigger than nobody and nogroup, see <nixos/modules/misc/ids.nix>
+              # and some spare for stuff like lxd.
+    max=2^32  # see 2^(8*sizeof(uid_t))
+    ibase=16
+    ($hash + min) % max
+  " | bc
+''
diff --git a/krebs/5pkgs/github-hosts-sync.nix b/krebs/5pkgs/github-hosts-sync.nix
new file mode 100644
index 000000000..d69b2b12b
--- /dev/null
+++ b/krebs/5pkgs/github-hosts-sync.nix
@@ -0,0 +1,40 @@
+{ stdenv, fetchgit, pkgs, ... }:
+
+stdenv.mkDerivation {
+  name = "github-hosts-sync";
+
+  src = fetchgit {
+    url = https://github.com/krebscode/painload;
+    rev = "35ccac73d563ad30d2851b9aeed4cfef69ff74e3";
+    sha256 = "1y1fs2p3xj2yrqpw0h5kd0f3c5p1y70xk1hjnw99sr33r67s9c35";
+  };
+
+  phases = [
+    "unpackPhase"
+    "installPhase"
+  ];
+
+  installPhase =
+    let
+      ca-bundle = "${pkgs.cacert}/etc/ca-bundle.crt";
+      path = stdenv.lib.makeSearchPath "bin" (with pkgs; [
+        coreutils
+        findutils
+        git
+        gnugrep
+        gnused
+        openssh
+        socat
+      ]);
+    in
+    ''
+      mkdir -p $out/bin
+
+      sed \
+        's,^main() {$,&\n  export PATH=${path} GIT_SSL_CAINFO=${ca-bundle},' \
+        < ./retiolum/scripts/github_hosts_sync/hosts-sync \
+        > $out/bin/github-hosts-sync
+
+      chmod +x $out/bin/github-hosts-sync
+    '';
+}
diff --git a/krebs/5pkgs/github-known_hosts.nix b/krebs/5pkgs/github-known_hosts.nix
new file mode 100644
index 000000000..302fdd8d5
--- /dev/null
+++ b/krebs/5pkgs/github-known_hosts.nix
@@ -0,0 +1,13 @@
+{ lib, ... }:
+
+with builtins;
+with lib;
+
+let
+  github-pubkey = removeSuffix "\n" (readFile ../../Zpubkeys/github.ssh.pub);
+in
+
+toFile "github-known_hosts"
+  (concatMapStrings
+    (i: "github.com,192.30.252.${toString i} ${github-pubkey}\n")
+    (range 0 255))
diff --git a/krebs/5pkgs/hashPassword.nix b/krebs/5pkgs/hashPassword.nix
new file mode 100644
index 000000000..a10340cc4
--- /dev/null
+++ b/krebs/5pkgs/hashPassword.nix
@@ -0,0 +1,16 @@
+{ lib, pkgs, ... }:
+
+pkgs.writeScriptBin "hashPassword" ''
+  #! /bin/sh
+  # usage: hashPassword
+  set -euf
+
+  export PATH=${lib.makeSearchPath "bin" (with pkgs; [
+    coreutils
+    mkpasswd
+    openssl
+  ])}
+
+  salt=$(openssl rand -base64 16 | tr -d '+=' | head -c 16)
+  exec mkpasswd -m sha-512 -S "$salt"
+''