forked from clan/clan-core
introduce minifakeroot that also works on macos
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parent
bae0a888c9
commit
2e2358d850
@ -182,10 +182,28 @@ in
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secret.zerotier-identity-secret = { };
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generator.path = [
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config.services.zerotierone.package
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pkgs.fakeroot
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pkgs.python3
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];
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generator.script = ''
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generator.script =
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let
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library = "libfakeroot${pkgs.stdenv.hostPlatform.extensions.sharedLibrary}";
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minifakeroot = pkgs.stdenv.mkDerivation {
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name = "minifakeroot";
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dontUnpack = true;
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installPhase = ''
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mkdir -p $out/lib
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${
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if pkgs.stdenv.isDarwin then
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"$CC -dynamiclib -o $out/lib/libfakeroot.dylib ${./fake_root.c}"
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else
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"$CC -shared -o $out/lib/libfakeroot.so ${./fake_root.c}"
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}
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'';
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};
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varName = if pkgs.stdenv.isDarwin then "DYLD_INSERT_LIBRARIES" else "LD_PRELOAD";
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in
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''
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export ${varName}=${minifakeroot}/lib/${library}
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python3 ${./generate.py} --mode network \
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--ip "$facts/zerotier-ip" \
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--identity-secret "$secrets/zerotier-identity-secret" \
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28
nixosModules/clanCore/zerotier/fake_root.c
Normal file
28
nixosModules/clanCore/zerotier/fake_root.c
Normal file
@ -0,0 +1,28 @@
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#include <stdint.h>
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typedef uint32_t uid_t;
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#ifdef __APPLE__
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struct dyld_interpose {
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const void * replacement;
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const void * replacee;
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};
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#define WRAPPER(ret, name) static ret _fakeroot_wrapper_##name
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#define WRAPPER_DEF(name) \
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__attribute__((used)) static struct dyld_interpose _fakeroot_interpose_##name \
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__attribute__((section("__DATA,__interpose"))) = { &_fakeroot_wrapper_##name, &name };
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#else
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#define WRAPPER(ret, name) ret name
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#define WRAPPER_DEF(name)
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#endif
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WRAPPER(uid_t, geteuid)(const char * path, int flags, ...)
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{
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return 0; // Fake root
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}
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WRAPPER_DEF(geteuid)
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WRAPPER(uid_t, getuid)(const char * path, int flags, ...)
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{
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return 0; // Fake root
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}
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WRAPPER_DEF(getuid)
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@ -111,12 +111,11 @@ def zerotier_controller() -> Iterator[ZerotierController]:
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home = tempdir / "zerotier-one"
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home.mkdir()
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cmd = [
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"fakeroot",
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"--",
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"zerotier-one",
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f"-p{controller_port}",
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str(home),
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]
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with subprocess.Popen(
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cmd,
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preexec_fn=os.setsid,
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@ -3,6 +3,7 @@ import importlib
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import logging
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import os
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import subprocess
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import sys
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from collections.abc import Callable
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from pathlib import Path
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from tempfile import TemporaryDirectory
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@ -15,7 +15,6 @@
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setuptools,
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sops,
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stdenv,
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fakeroot,
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rsync,
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bash,
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sshpass,
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@ -38,7 +37,6 @@ let
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runtimeDependencies = [
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bash
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nix
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fakeroot
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openssh
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sshpass
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zbar
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