go.mod: runc v1.0.1

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

vendor/github.com/cilium/ebpf/internal/syscall.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"path/filepath"
 	"runtime"
+	"syscall"
 	"unsafe"
 
 	"github.com/cilium/ebpf/internal/unix"
@@ -61,7 +62,7 @@ func BPF(cmd BPFCmd, attr unsafe.Pointer, size uintptr) (uintptr, error) {
 
 	var err error
 	if errNo != 0 {
-		err = errNo
+		err = wrappedErrno{errNo}
 	}
 
 	return r1, err
@@ -178,3 +179,67 @@ func BPFObjGetInfoByFD(fd *FD, info unsafe.Pointer, size uintptr) error {
 	}
 	return nil
 }
+
+// BPFObjName is a null-terminated string made up of
+// 'A-Za-z0-9_' characters.
+type BPFObjName [unix.BPF_OBJ_NAME_LEN]byte
+
+// NewBPFObjName truncates the result if it is too long.
+func NewBPFObjName(name string) BPFObjName {
+	var result BPFObjName
+	copy(result[:unix.BPF_OBJ_NAME_LEN-1], name)
+	return result
+}
+
+type BPFMapCreateAttr struct {
+	MapType        uint32
+	KeySize        uint32
+	ValueSize      uint32
+	MaxEntries     uint32
+	Flags          uint32
+	InnerMapFd     uint32     // since 4.12 56f668dfe00d
+	NumaNode       uint32     // since 4.14 96eabe7a40aa
+	MapName        BPFObjName // since 4.15 ad5b177bd73f
+	MapIfIndex     uint32
+	BTFFd          uint32
+	BTFKeyTypeID   uint32
+	BTFValueTypeID uint32
+}
+
+func BPFMapCreate(attr *BPFMapCreateAttr) (*FD, error) {
+	fd, err := BPF(BPF_MAP_CREATE, unsafe.Pointer(attr), unsafe.Sizeof(*attr))
+	if err != nil {
+		return nil, err
+	}
+
+	return NewFD(uint32(fd)), nil
+}
+
+// wrappedErrno wraps syscall.Errno to prevent direct comparisons with
+// syscall.E* or unix.E* constants.
+//
+// You should never export an error of this type.
+type wrappedErrno struct {
+	syscall.Errno
+}
+
+func (we wrappedErrno) Unwrap() error {
+	return we.Errno
+}
+
+type syscallError struct {
+	error
+	errno syscall.Errno
+}
+
+func SyscallError(err error, errno syscall.Errno) error {
+	return &syscallError{err, errno}
+}
+
+func (se *syscallError) Is(target error) bool {
+	return target == se.error
+}
+
+func (se *syscallError) Unwrap() error {
+	return se.errno
+}