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//go:build testtool
package main
import (
"errors"
"log"
"net"
"os"
"path"
"slices"
"syscall"
"hakurei.app/container/fhs"
"hakurei.app/container/vfs"
)
func main() {
log.SetFlags(0)
log.SetPrefix("testtool: ")
var hostNet bool
wantArgs := []string{"testtool"}
if len(os.Args) == 2 {
hostNet = true
wantArgs = []string{"testtool", "net"}
}
if !slices.Equal(os.Args, wantArgs) {
log.Fatalf("Args: %q, want %q", os.Args, wantArgs)
}
if wantEnv := []string{
"HAKUREI_TEST=1",
}; !slices.Equal(wantEnv, os.Environ()) {
log.Fatalf("Environ: %q, want %q", os.Environ(), wantEnv)
}
const wantExec = "/opt/bin/testtool"
if got, err := os.Executable(); err != nil {
log.Fatalf("Executable: error = %v", err)
} else if got != wantExec {
log.Fatalf("Executable: %q, want %q", got, wantExec)
}
wantHostname := "cure"
if hostNet {
wantHostname += "-net"
}
if hostname, err := os.Hostname(); err != nil {
log.Fatalf("Hostname: error = %v", err)
} else if hostname != wantHostname {
log.Fatalf("Hostname: %q, want %q", hostname, wantHostname)
}
ident := "oHuqV7p0v1Vd8IdAzjyYM8sfCS0P2LR5tfv5cb6Gbf2ZWUm8Ec-7hYPJ_qr183m7"
if hostNet {
ident = "I3T53NtN6HPAyyodHtq2B0clcsoS1nPdvCEb-Zc5K-hoqFGL2od1mftHhwG7gX1S"
}
var m *vfs.MountInfo
if f, err := os.Open(fhs.Proc + "self/mountinfo"); err != nil {
log.Fatalf("Open: error = %v", err)
} else {
err = vfs.NewMountInfoDecoder(f).Decode(&m)
closeErr := f.Close()
if err != nil {
log.Fatalf("Decode: error = %v", err)
}
if closeErr != nil {
log.Fatalf("Close: error = %v", err)
}
}
if _, err := net.Dial("tcp", "127.0.0.1:0"); err == nil {
log.Fatal("Dial unexpectedly succeeded")
} else if hostNet {
if !errors.Is(err, syscall.ECONNREFUSED) {
log.Fatalf("Dial: error = %v", err)
}
} else {
if !errors.Is(err, syscall.ENETUNREACH) {
log.Fatalf("Dial: error = %v", err)
}
}
log.Println(m)
if m.Root != "/sysroot" || m.Target != "/" {
log.Fatal("unexpected root mount entry")
}
next := func() { m = m.Next; log.Println(m) }
next()
if path.Base(m.Root) != "OLBgp1GsljhM2TJ-sbHjaiH9txEUvgdDTAzHv2P24donTt6_529l-9Ua0vFImLlb" {
log.Fatal("unexpected file artifact checksum")
}
next()
if path.Base(m.Root) != "MGWmEfjut2QE2xPJwTsmUzpff4BN_FEnQ7T0j7gvUCCiugJQNwqt9m151fm9D1yU" {
log.Fatal("unexpected artifact checksum")
}
next() // testtool artifact
next()
if path.Base(m.Root) != ident || m.Target != "/work" {
log.Fatal("unexpected work mount entry")
}
next()
if path.Base(m.Root) != ident || m.Target != "/tmp" {
log.Fatal("unexpected temp mount entry")
}
next()
if m.Root != "/" || m.Target != "/proc" || m.Source != "proc" || m.FsType != "proc" {
log.Fatal("unexpected proc mount entry")
}
next()
if m.Root != "/" || m.Target != "/dev" || m.Source != "devtmpfs" || m.FsType != "tmpfs" {
log.Fatal("unexpected dev mount entry")
}
for i := 0; i < 9; i++ { // private /dev entries
next()
}
if m.Next != nil {
log.Println("unexpected extra mount entries")
for m.Next != nil {
next()
}
os.Exit(1)
}
checkData := []byte{0}
if hostNet {
checkData = []byte("net")
}
if err := os.WriteFile("check", checkData, 0400); err != nil {
log.Fatal(err)
}
}
|
