cmd/hakurei: move to cmd

Having it at the project root never made sense since the "ego" name was deprecated. This change finally addresses it.

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

1 files changed, 0 insertions, 296 deletions

diff --git a/main.go b/main.go
deleted file mode 100644
index e5f54eeb..00000000
--- a/main.go
+++ /dev/null
@@ -1,296 +0,0 @@
-package main
-
-import (
-	"context"
-	_ "embed"
-	"errors"
-	"fmt"
-	"io"
-	"log"
-	"os"
-	"os/signal"
-	"os/user"
-	"strconv"
-	"sync"
-	"syscall"
-	"time"
-
-	"git.gensokyo.uk/security/hakurei/command"
-	"git.gensokyo.uk/security/hakurei/dbus"
-	"git.gensokyo.uk/security/hakurei/hst"
-	"git.gensokyo.uk/security/hakurei/internal"
-	"git.gensokyo.uk/security/hakurei/internal/app"
-	"git.gensokyo.uk/security/hakurei/internal/app/instance"
-	"git.gensokyo.uk/security/hakurei/internal/hlog"
-	"git.gensokyo.uk/security/hakurei/internal/state"
-	"git.gensokyo.uk/security/hakurei/internal/sys"
-	"git.gensokyo.uk/security/hakurei/sandbox"
-	"git.gensokyo.uk/security/hakurei/system"
-)
-
-var (
-	errSuccess = errors.New("success")
-
-	//go:embed LICENSE
-	license string
-)
-
-func init() { hlog.Prepare("hakurei") }
-
-var std sys.State = new(sys.Std)
-
-func main() {
-	// early init path, skips root check and duplicate PR_SET_DUMPABLE
-	sandbox.TryArgv0(hlog.Output{}, hlog.Prepare, internal.InstallFmsg)
-
-	if err := sandbox.SetDumpable(sandbox.SUID_DUMP_DISABLE); err != nil {
-		log.Printf("cannot set SUID_DUMP_DISABLE: %s", err)
-		// not fatal: this program runs as the privileged user
-	}
-
-	if os.Geteuid() == 0 {
-		log.Fatal("this program must not run as root")
-	}
-
-	buildCommand(os.Stderr).MustParse(os.Args[1:], func(err error) {
-		hlog.Verbosef("command returned %v", err)
-		if errors.Is(err, errSuccess) {
-			hlog.BeforeExit()
-			os.Exit(0)
-		}
-	})
-	log.Fatal("unreachable")
-}
-
-func buildCommand(out io.Writer) command.Command {
-	var (
-		flagVerbose bool
-		flagJSON    bool
-	)
-	c := command.New(out, log.Printf, "hakurei", func([]string) error { internal.InstallFmsg(flagVerbose); return nil }).
-		Flag(&flagVerbose, "v", command.BoolFlag(false), "Increase log verbosity").
-		Flag(&flagJSON, "json", command.BoolFlag(false), "Serialise output in JSON when applicable")
-
-	c.Command("shim", command.UsageInternal, func([]string) error { instance.ShimMain(); return errSuccess })
-
-	c.Command("app", "Load app from configuration file", func(args []string) error {
-		if len(args) < 1 {
-			log.Fatal("app requires at least 1 argument")
-		}
-
-		// config extraArgs...
-		config := tryPath(args[0])
-		config.Args = append(config.Args, args[1:]...)
-
-		runApp(config)
-		panic("unreachable")
-	})
-
-	{
-		var (
-			dbusConfigSession string
-			dbusConfigSystem  string
-			mpris             bool
-			dbusVerbose       bool
-
-			fid      string
-			aid      int
-			groups   command.RepeatableFlag
-			homeDir  string
-			userName string
-
-			wayland, x11, dBus, pulse bool
-		)
-
-		c.NewCommand("run", "Configure and start a permissive default sandbox", func(args []string) error {
-			// initialise config from flags
-			config := &hst.Config{
-				ID:   fid,
-				Args: args,
-			}
-
-			if aid < 0 || aid > 9999 {
-				log.Fatalf("aid %d out of range", aid)
-			}
-
-			// resolve home/username from os when flag is unset
-			var (
-				passwd     *user.User
-				passwdOnce sync.Once
-				passwdFunc = func() {
-					var us string
-					if uid, err := std.Uid(aid); err != nil {
-						hlog.PrintBaseError(err, "cannot obtain uid from setuid wrapper:")
-						os.Exit(1)
-					} else {
-						us = strconv.Itoa(uid)
-					}
-
-					if u, err := user.LookupId(us); err != nil {
-						hlog.Verbosef("cannot look up uid %s", us)
-						passwd = &user.User{
-							Uid:      us,
-							Gid:      us,
-							Username: "chronos",
-							Name:     "Hakurei Permissive Default",
-							HomeDir:  "/var/empty",
-						}
-					} else {
-						passwd = u
-					}
-				}
-			)
-
-			if homeDir == "os" {
-				passwdOnce.Do(passwdFunc)
-				homeDir = passwd.HomeDir
-			}
-
-			if userName == "chronos" {
-				passwdOnce.Do(passwdFunc)
-				userName = passwd.Username
-			}
-
-			config.Identity = aid
-			config.Groups = groups
-			config.Data = homeDir
-			config.Username = userName
-
-			if wayland {
-				config.Enablements |= system.EWayland
-			}
-			if x11 {
-				config.Enablements |= system.EX11
-			}
-			if dBus {
-				config.Enablements |= system.EDBus
-			}
-			if pulse {
-				config.Enablements |= system.EPulse
-			}
-
-			// parse D-Bus config file from flags if applicable
-			if dBus {
-				if dbusConfigSession == "builtin" {
-					config.SessionBus = dbus.NewConfig(fid, true, mpris)
-				} else {
-					if conf, err := dbus.NewConfigFromFile(dbusConfigSession); err != nil {
-						log.Fatalf("cannot load session bus proxy config from %q: %s", dbusConfigSession, err)
-					} else {
-						config.SessionBus = conf
-					}
-				}
-
-				// system bus proxy is optional
-				if dbusConfigSystem != "nil" {
-					if conf, err := dbus.NewConfigFromFile(dbusConfigSystem); err != nil {
-						log.Fatalf("cannot load system bus proxy config from %q: %s", dbusConfigSystem, err)
-					} else {
-						config.SystemBus = conf
-					}
-				}
-
-				// override log from configuration
-				if dbusVerbose {
-					config.SessionBus.Log = true
-					config.SystemBus.Log = true
-				}
-			}
-
-			// invoke app
-			runApp(config)
-			panic("unreachable")
-		}).
-			Flag(&dbusConfigSession, "dbus-config", command.StringFlag("builtin"),
-				"Path to session bus proxy config file, or \"builtin\" for defaults").
-			Flag(&dbusConfigSystem, "dbus-system", command.StringFlag("nil"),
-				"Path to system bus proxy config file, or \"nil\" to disable").
-			Flag(&mpris, "mpris", command.BoolFlag(false),
-				"Allow owning MPRIS D-Bus path, has no effect if custom config is available").
-			Flag(&dbusVerbose, "dbus-log", command.BoolFlag(false),
-				"Force buffered logging in the D-Bus proxy").
-			Flag(&fid, "id", command.StringFlag(""),
-				"Reverse-DNS style Application identifier, leave empty to inherit instance identifier").
-			Flag(&aid, "a", command.IntFlag(0),
-				"Application identity").
-			Flag(nil, "g", &groups,
-				"Groups inherited by all container processes").
-			Flag(&homeDir, "d", command.StringFlag("os"),
-				"Container home directory").
-			Flag(&userName, "u", command.StringFlag("chronos"),
-				"Passwd user name within sandbox").
-			Flag(&wayland, "wayland", command.BoolFlag(false),
-				"Enable connection to Wayland via security-context-v1").
-			Flag(&x11, "X", command.BoolFlag(false),
-				"Enable direct connection to X11").
-			Flag(&dBus, "dbus", command.BoolFlag(false),
-				"Enable proxied connection to D-Bus").
-			Flag(&pulse, "pulse", command.BoolFlag(false),
-				"Enable direct connection to PulseAudio")
-	}
-
-	var showFlagShort bool
-	c.NewCommand("show", "Show live or local app configuration", func(args []string) error {
-		switch len(args) {
-		case 0: // system
-			printShowSystem(os.Stdout, showFlagShort, flagJSON)
-
-		case 1: // instance
-			name := args[0]
-			config, entry := tryShort(name)
-			if config == nil {
-				config = tryPath(name)
-			}
-			printShowInstance(os.Stdout, time.Now().UTC(), entry, config, showFlagShort, flagJSON)
-
-		default:
-			log.Fatal("show requires 1 argument")
-		}
-		return errSuccess
-	}).Flag(&showFlagShort, "short", command.BoolFlag(false), "Omit filesystem information")
-
-	var psFlagShort bool
-	c.NewCommand("ps", "List active instances", func(args []string) error {
-		printPs(os.Stdout, time.Now().UTC(), state.NewMulti(std.Paths().RunDirPath), psFlagShort, flagJSON)
-		return errSuccess
-	}).Flag(&psFlagShort, "short", command.BoolFlag(false), "Print instance id")
-
-	c.Command("version", "Display version information", func(args []string) error {
-		fmt.Println(internal.Version())
-		return errSuccess
-	})
-
-	c.Command("license", "Show full license text", func(args []string) error {
-		fmt.Println(license)
-		return errSuccess
-	})
-
-	c.Command("template", "Produce a config template", func(args []string) error {
-		printJSON(os.Stdout, false, hst.Template())
-		return errSuccess
-	})
-
-	c.Command("help", "Show this help message", func([]string) error {
-		c.PrintHelp()
-		return errSuccess
-	})
-
-	return c
-}
-
-func runApp(config *hst.Config) {
-	ctx, stop := signal.NotifyContext(context.Background(),
-		syscall.SIGINT, syscall.SIGTERM)
-	defer stop() // unreachable
-	a := instance.MustNew(instance.ISetuid, ctx, std)
-
-	rs := new(app.RunState)
-	if sa, err := a.Seal(config); err != nil {
-		hlog.PrintBaseError(err, "cannot seal app:")
-		internal.Exit(1)
-	} else {
-		internal.Exit(instance.PrintRunStateErr(instance.ISetuid, rs, sa.Run(rs)))
-	}
-
-	*(*int)(nil) = 0 // not reached
-}