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|
//go:build testtool
package main
import (
"flag"
"fmt"
"log"
"os"
"os/signal"
"strconv"
"strings"
"syscall"
"hakurei.app/test/sandbox"
)
var (
flagTestCase string
flagBpfHash string
)
func init() {
flag.StringVar(&flagTestCase, "t", "", "Nix store path to test case file")
flag.StringVar(&flagBpfHash, "s", "", "String representation of expected bpf sha512 hash")
}
func main() {
log.SetFlags(0)
log.SetPrefix("test: ")
flag.Parse()
args := flag.Args()
if len(args) < 1 {
s := make(chan os.Signal, 1)
signal.Notify(s, syscall.SIGINT)
go func() { <-s; log.Println("exiting on signal (likely from verifier)"); os.Exit(0) }()
(&sandbox.T{FS: os.DirFS("/")}).MustCheckFile(flagTestCase)
if _, err := os.Create("/tmp/sandbox-ok"); err != nil {
log.Fatalf("cannot create success marker: %v", err)
}
log.Println("blocking for seccomp check")
select {}
return
}
switch args[0] {
case "filter":
if len(args) != 2 {
log.Fatal("invalid argument")
}
if pid, err := strconv.Atoi(strings.TrimSpace(args[1])); err != nil {
log.Fatalf("%s", err)
} else if pid < 1 {
log.Fatalf("%d out of range", pid)
} else {
sandbox.MustCheckFilter(pid, flagBpfHash)
if err = syscall.Kill(pid, syscall.SIGINT); err != nil {
log.Fatalf("cannot signal check process: %v", err)
}
}
case "hash": // this eases the pain of passing the hash to python
fmt.Print(flagBpfHash)
default:
log.Fatal("invalid argument")
}
}
|
