errdefs: detect certain sycall errors as internal

Signed-off-by: Tonis Tiigi <[email protected]>

Author: tonistiigi

errdefs/errdefs.go renamed to errdefs/internal.go

@@ -1,6 +1,9 @@
 package errdefs
 
-import "errors"
+import (
+	"errors"
+	"syscall"
+)
 
 type internalErr struct {
 	error
@@ -27,5 +30,20 @@ func Internal(err error) error {
 
 func IsInternal(err error) bool {
 	var s system
-	return errors.As(err, &s)
+	if errors.As(err, &s) {
+		return true
+	}
+
+	var errno syscall.Errno
+	if errors.As(err, &errno) {
+		if isInternalSyscall(errno) {
+			return true
+		}
+	}
+	return false
+}
+
+func isInternalSyscall(err syscall.Errno) bool {
+	_, ok := syscallErrors()[err]
+	return ok
 }

errdefs/internal_linux.go

@@ -0,0 +1,21 @@
+//go:build linux
+// +build linux
+
+package errdefs
+
+import (
+	"syscall"
+
+	"golang.org/x/sys/unix"
+)
+
+func syscallErrors() map[syscall.Errno]struct{} {
+	return map[syscall.Errno]struct{}{
+		unix.EIO:             {}, // I/O error
+		unix.ENOMEM:          {}, // Out of memory
+		unix.EFAULT:          {}, // Bad address
+		unix.ENOSPC:          {}, // No space left on device
+		unix.ENOTRECOVERABLE: {}, // State not recoverable
+		unix.EHWPOISON:       {}, // Memory page has hardware error
+	}
+}

errdefs/internal_nolinux.go

@@ -0,0 +1,10 @@
+//go:build !linux
+// +build !linux
+
+package errdefs
+
+import "syscall"
+
+func syscallErrors() map[syscall.Errno]struct{} {
+	return nil
+}