treewide: introduce osbase package and move things around
All except localregistry moved from metropolis/pkg to osbase,
localregistry moved to metropolis/test as its only used there anyway.
Change-Id: If1a4bf377364bef0ac23169e1b90379c71b06d72
Reviewed-on: https://review.monogon.dev/c/monogon/+/3079
Tested-by: Jenkins CI
Reviewed-by: Serge Bazanski <serge@monogon.tech>
diff --git a/osbase/test/ktest/init/BUILD.bazel b/osbase/test/ktest/init/BUILD.bazel
new file mode 100644
index 0000000..56b262c
--- /dev/null
+++ b/osbase/test/ktest/init/BUILD.bazel
@@ -0,0 +1,18 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
+
+go_library(
+ name = "init_lib",
+ srcs = ["main.go"],
+ importpath = "source.monogon.dev/osbase/test/ktest/init",
+ visibility = ["//visibility:private"],
+ deps = ["@org_golang_x_sys//unix"],
+)
+
+go_binary(
+ name = "init",
+ embed = [":init_lib"],
+ pure = "on",
+ visibility = [
+ "//visibility:public",
+ ],
+)
diff --git a/osbase/test/ktest/init/main.go b/osbase/test/ktest/init/main.go
new file mode 100644
index 0000000..16ffa29
--- /dev/null
+++ b/osbase/test/ktest/init/main.go
@@ -0,0 +1,85 @@
+// Copyright 2020 The Monogon Project Authors.
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// ktestinit is an init designed to run inside a lightweight VM for running
+// tests in there. It performs basic platform initialization like mounting
+// kernel filesystems and launches the test executable at /tester, passes the
+// exit code back out over the control socket to ktest and then terminates the
+// default VM kernel.
+package main
+
+import (
+ "errors"
+ "fmt"
+ "os"
+ "os/exec"
+
+ "golang.org/x/sys/unix"
+)
+
+func mountInit() error {
+ for _, el := range []struct {
+ dir string
+ fs string
+ flags uintptr
+ }{
+ {"/sys", "sysfs", unix.MS_NOEXEC | unix.MS_NOSUID | unix.MS_NODEV},
+ {"/sys/kernel/debug", "debugfs", unix.MS_NOEXEC | unix.MS_NOSUID | unix.MS_NODEV},
+ {"/proc", "proc", unix.MS_NOEXEC | unix.MS_NOSUID | unix.MS_NODEV},
+ {"/dev", "devtmpfs", unix.MS_NOEXEC | unix.MS_NOSUID},
+ {"/dev/pts", "devpts", unix.MS_NOEXEC | unix.MS_NOSUID},
+ {"/tmp", "tmpfs", 0},
+ } {
+ if err := os.Mkdir(el.dir, 0755); err != nil && !os.IsExist(err) {
+ return fmt.Errorf("could not make %s: %w", el.dir, err)
+ }
+ if err := unix.Mount(el.fs, el.dir, el.fs, el.flags, ""); err != nil {
+ return fmt.Errorf("could not mount %s on %s: %w", el.fs, el.dir, err)
+ }
+ }
+ return nil
+}
+
+func main() {
+ if err := mountInit(); err != nil {
+ panic(err)
+ }
+
+ // First virtual serial is always stdout, second is control
+ ioConn, err := os.OpenFile("/dev/vport1p1", os.O_RDWR, 0)
+ if err != nil {
+ fmt.Printf("Failed to open communication device: %v\n", err)
+ return
+ }
+ cmd := exec.Command("/tester", "-test.v")
+ cmd.Stderr = os.Stderr
+ cmd.Stdout = os.Stdout
+ cmd.Env = append(cmd.Env, "IN_KTEST=true")
+ if err := cmd.Run(); err != nil {
+ var exerr *exec.ExitError
+ if errors.As(err, &exerr) {
+ if _, err := ioConn.Write([]byte{uint8(exerr.ExitCode())}); err != nil {
+ panic(err)
+ }
+ }
+ fmt.Printf("Failed to execute tests (tests didn't run): %v", err)
+ } else {
+ ioConn.Write([]byte{0})
+ }
+ ioConn.Close()
+
+ unix.Reboot(unix.LINUX_REBOOT_CMD_RESTART)
+}