test: move nix files

These are too much clutter. Move them to test directory until the test suite replacement is upstreamed.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/hsu/package.nix

@@ -1,23 +0,0 @@
-{
-  lib,
-  buildGoModule,
-  hakurei ? abort "hakurei package required",
-}:
-
-buildGoModule {
-  pname = "${hakurei.pname}-hsu";
-  inherit (hakurei) version;
-
-  src = ./.;
-  inherit (hakurei) vendorHash;
-  env.CGO_ENABLED = 0;
-
-  preBuild = ''
-    go mod init hsu >& /dev/null
-  '';
-
-  ldflags = lib.attrsets.foldlAttrs (
-    ldflags: name: value:
-    ldflags ++ [ "-X main.${name}=${value}" ]
-  ) [ "-s -w" ] { hakureiPath = "${hakurei}/libexec/hakurei"; };
-}

cmd/sharefs/test/configuration.nix

@@ -1,44 +0,0 @@
-{ pkgs, ... }:
-{
-  users.users = {
-    alice = {
-      isNormalUser = true;
-      description = "Alice Foobar";
-      password = "foobar";
-      uid = 1000;
-    };
-  };
-
-  home-manager.users.alice.home.stateVersion = "24.11";
-
-  # Automatically login on tty1 as a normal user:
-  services.getty.autologinUser = "alice";
-
-  environment = {
-    # For benchmarking sharefs:
-    systemPackages = [ pkgs.fsmark ];
-  };
-
-  virtualisation = {
-    # Hopefully reduces spurious test failures:
-    memorySize = if pkgs.stdenv.hostPlatform.is32bit then 2046 else 8192;
-
-    diskSize = 6 * 1024;
-
-    qemu.options = [
-      # Increase test performance:
-      "-smp 16"
-    ];
-  };
-
-  environment.hakurei = rec {
-    enable = true;
-    stateDir = "/var/lib/hakurei";
-    sharefs.source = "${stateDir}/sdcard";
-    users.alice = 0;
-
-    extraHomeConfig = {
-      home.stateVersion = "23.05";
-    };
-  };
-}

cmd/sharefs/test/default.nix

@@ -1,44 +0,0 @@
-{
-  testers,
-
-  system,
-  self,
-}:
-testers.nixosTest {
-  name = "sharefs";
-  nodes.machine =
-    { options, pkgs, ... }:
-    let
-      fhs =
-        let
-          hakurei = options.environment.hakurei.package.default;
-        in
-        pkgs.buildFHSEnv {
-          pname = "hakurei-fhs";
-          inherit (hakurei) version;
-          targetPkgs = _: hakurei.targetPkgs;
-          extraOutputsToInstall = [ "dev" ];
-          profile = ''
-            export PKG_CONFIG_PATH="/usr/share/pkgconfig:$PKG_CONFIG_PATH"
-          '';
-        };
-    in
-    {
-      environment.systemPackages = [
-        # For go tests:
-        (pkgs.writeShellScriptBin "sharefs-workload-hakurei-tests" ''
-          cp -r "${self.packages.${system}.hakurei.src}" "/sdcard/hakurei" && cd "/sdcard/hakurei"
-          ${fhs}/bin/hakurei-fhs -c 'ROSA_SKIP_BINFMT=1 CC="clang -O3 -Werror" go test ./...'
-        '')
-      ];
-
-      imports = [
-        ./configuration.nix
-
-        self.nixosModules.hakurei
-        self.inputs.home-manager.nixosModules.home-manager
-      ];
-    };
-
-  testScript = builtins.readFile ./test.py;
-}

cmd/sharefs/test/raceattr.go

@@ -1,122 +0,0 @@
-//go:build raceattr
-
-// The raceattr program reproduces vfs inode file attribute race.
-//
-// Even though libfuse high-level API presents the address of a struct stat
-// alongside struct fuse_context, file attributes are actually inherent to the
-// inode, instead of the specific call from userspace. The kernel implementation
-// in fs/fuse/xattr.c appears to make stale data in the inode (set by a previous
-// call) impossible or very unlikely to reach userspace via the stat family of
-// syscalls. However, when using default_permissions to have the VFS check
-// permissions, this race still happens, despite the resulting struct stat being
-// correct when overriding the check via capabilities otherwise.
-//
-// This program reproduces the failure, but because of its continuous nature, it
-// is provided independent of the vm integration test suite.
-package main
-
-import (
-	"context"
-	"flag"
-	"log"
-	"os"
-	"os/signal"
-	"runtime"
-	"sync"
-	"sync/atomic"
-	"syscall"
-)
-
-func newStatAs(
-	ctx context.Context, cancel context.CancelFunc,
-	n *atomic.Uint64, ok *atomic.Bool,
-	uid uint32, pathname string,
-	continuous bool,
-) func() {
-	return func() {
-		runtime.LockOSThread()
-		defer cancel()
-
-		if _, _, errno := syscall.Syscall(
-			syscall.SYS_SETUID, uintptr(uid),
-			0, 0,
-		); errno != 0 {
-			cancel()
-			log.Printf("cannot set uid to %d: %s", uid, errno)
-		}
-
-		var stat syscall.Stat_t
-		for {
-			if ctx.Err() != nil {
-				return
-			}
-
-			if err := syscall.Lstat(pathname, &stat); err != nil {
-				// SHAREFS_PERM_DIR not world executable, or
-				// SHAREFS_PERM_REG not world readable
-				if !continuous {
-					cancel()
-				}
-				ok.Store(true)
-				log.Printf("uid %d: %v", uid, err)
-			} else if stat.Uid != uid {
-				// appears to be unreachable
-				if !continuous {
-					cancel()
-				}
-				ok.Store(true)
-				log.Printf("got uid %d instead of %d", stat.Uid, uid)
-			}
-			n.Add(1)
-		}
-	}
-}
-
-func main() {
-	log.SetFlags(0)
-	log.SetPrefix("raceattr: ")
-
-	p := flag.String("target", "/sdcard/raceattr", "pathname of test file")
-	u0 := flag.Int("uid0", 1<<10-1, "first uid")
-	u1 := flag.Int("uid1", 1<<10-2, "second uid")
-	count := flag.Int("count", 1, "threads per uid")
-	continuous := flag.Bool("continuous", false, "keep running even after reproduce")
-	flag.Parse()
-
-	if os.Geteuid() != 0 {
-		log.Fatal("this program must run as root")
-	}
-
-	ctx, cancel := signal.NotifyContext(
-		context.Background(),
-		syscall.SIGINT,
-		syscall.SIGTERM,
-		syscall.SIGHUP,
-	)
-
-	if err := os.WriteFile(*p, nil, 0); err != nil {
-		log.Fatal(err)
-	}
-
-	var (
-		wg sync.WaitGroup
-
-		n  atomic.Uint64
-		ok atomic.Bool
-	)
-
-	if *count < 1 {
-		*count = 1
-	}
-	for range *count {
-		wg.Go(newStatAs(ctx, cancel, &n, &ok, uint32(*u0), *p, *continuous))
-		if *u1 >= 0 {
-			wg.Go(newStatAs(ctx, cancel, &n, &ok, uint32(*u1), *p, *continuous))
-		}
-	}
-
-	wg.Wait()
-	if !*continuous && ok.Load() {
-		log.Printf("reproduced after %d calls", n.Load())
-	}
-}

cmd/sharefs/test/test.py

@@ -1,60 +0,0 @@
-start_all()
-machine.wait_for_unit("multi-user.target")
-
-# To check sharefs version:
-print(machine.succeed("sharefs -V"))
-
-# Make sure sharefs started:
-machine.wait_for_unit("sdcard.mount")
-
-machine.succeed("mkdir /mnt")
-def check_bad_opts_output(opts, want, source="/etc", privileged=False):
-    output = machine.fail(("" if privileged else "sudo -u alice -i ") + f"sharefs -f -o source={source},{opts} /mnt 2>&1")
-    if output != want:
-        raise Exception(f"unexpected output: {output}")
-
-# Malformed setuid/setgid representation:
-check_bad_opts_output("setuid=ff", "sharefs: invalid value for option setuid\n")
-check_bad_opts_output("setgid=ff", "sharefs: invalid value for option setgid\n")
-
-# Bounds check for setuid/setgid:
-check_bad_opts_output("setuid=0", "sharefs: invalid value for option setuid\n")
-check_bad_opts_output("setgid=0", "sharefs: invalid value for option setgid\n")
-check_bad_opts_output("setuid=-1", "sharefs: invalid value for option setuid\n")
-check_bad_opts_output("setgid=-1", "sharefs: invalid value for option setgid\n")
-
-# Non-root setuid/setgid:
-check_bad_opts_output("setuid=1023", "sharefs: setuid and setgid has no effect when not starting as root\n")
-check_bad_opts_output("setgid=1023", "sharefs: setuid and setgid has no effect when not starting as root\n")
-check_bad_opts_output("setuid=1023,setgid=1023", "sharefs: setuid and setgid has no effect when not starting as root\n")
-check_bad_opts_output("mkdir", "sharefs: mkdir has no effect when not starting as root\n")
-
-# Starting as root without setuid/setgid:
-check_bad_opts_output("allow_other", "sharefs: setuid and setgid must not be 0\n", privileged=True)
-check_bad_opts_output("setuid=1023", "sharefs: setuid and setgid must not be 0\n", privileged=True)
-check_bad_opts_output("setgid=1023", "sharefs: setuid and setgid must not be 0\n", privileged=True)
-
-# Make sure nothing actually got mounted:
-machine.fail("umount /mnt")
-machine.succeed("rmdir /mnt")
-
-# Unprivileged mount/unmount:
-machine.succeed("sudo -u alice -i mkdir /home/alice/{sdcard,persistent}")
-machine.succeed("sudo -u alice -i sharefs -o source=/home/alice/persistent /home/alice/sdcard")
-machine.succeed("sudo -u alice -i touch /home/alice/sdcard/check")
-machine.succeed("sudo -u alice -i umount /home/alice/sdcard")
-machine.succeed("sudo -u alice -i rm /home/alice/persistent/check")
-machine.succeed("sudo -u alice -i rmdir /home/alice/{sdcard,persistent}")
-
-# Benchmark sharefs:
-machine.succeed("fs_mark -v -d /sdcard/fs_mark -l /tmp/fs_log.txt")
-machine.copy_from_vm("/tmp/fs_log.txt", "")
-
-# Check permissions:
-machine.succeed("sudo -u sharefs touch /var/lib/hakurei/sdcard/fs_mark/.check")
-machine.succeed("sudo -u sharefs rm /var/lib/hakurei/sdcard/fs_mark/.check")
-machine.succeed("sudo -u alice rm -rf /sdcard/fs_mark")
-machine.fail("ls /var/lib/hakurei/sdcard/fs_mark")
-
-# Run hakurei tests on sharefs:
-machine.succeed("sudo -u alice -i sharefs-workload-hakurei-tests")