diff options
-rw-r--r-- | pkg/abi/linux/linux_abi_autogen_unsafe.go | 20 | ||||
-rw-r--r-- | pkg/sentry/platform/ring0/defs_impl_arm64.go | 4 | ||||
-rw-r--r-- | tools/go_marshal/marshal/marshal_impl_util.go | 78 |
3 files changed, 90 insertions, 12 deletions
diff --git a/pkg/abi/linux/linux_abi_autogen_unsafe.go b/pkg/abi/linux/linux_abi_autogen_unsafe.go index 8ad27da56..99461368f 100644 --- a/pkg/abi/linux/linux_abi_autogen_unsafe.go +++ b/pkg/abi/linux/linux_abi_autogen_unsafe.go @@ -150,7 +150,7 @@ func (s *Statx) Packed() bool { // MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. func (s *Statx) MarshalUnsafe(dst []byte) { - if s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() { + if s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() { safecopy.CopyIn(dst, unsafe.Pointer(s)) } else { // Type Statx doesn't have a packed layout in memory, fallback to MarshalBytes. @@ -160,7 +160,7 @@ func (s *Statx) MarshalUnsafe(dst []byte) { // UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. func (s *Statx) UnmarshalUnsafe(src []byte) { - if s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() { + if s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() { safecopy.CopyOut(unsafe.Pointer(s), src) } else { // Type Statx doesn't have a packed layout in memory, fallback to UnmarshalBytes. @@ -171,7 +171,7 @@ func (s *Statx) UnmarshalUnsafe(src []byte) { // CopyOutN implements marshal.Marshallable.CopyOutN. //go:nosplit func (s *Statx) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) { - if !s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() { + if !s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() { // Type Statx doesn't have a packed layout in memory, fall back to MarshalBytes. buf := task.CopyScratchBuffer(s.SizeBytes()) // escapes: okay. s.MarshalBytes(buf) // escapes: fallback. @@ -227,7 +227,7 @@ func (s *Statx) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) { // WriteTo implements io.WriterTo.WriteTo. func (s *Statx) WriteTo(w io.Writer) (int64, error) { - if !s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() { + if !s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() { // Type Statx doesn't have a packed layout in memory, fall back to MarshalBytes. buf := make([]byte, s.SizeBytes()) s.MarshalBytes(buf) @@ -635,7 +635,7 @@ func (f *FUSEHeaderIn) MarshalUnsafe(dst []byte) { // UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe. func (f *FUSEHeaderIn) UnmarshalUnsafe(src []byte) { - if f.Unique.Packed() && f.Opcode.Packed() { + if f.Opcode.Packed() && f.Unique.Packed() { safecopy.CopyOut(unsafe.Pointer(f), src) } else { // Type FUSEHeaderIn doesn't have a packed layout in memory, fallback to UnmarshalBytes. @@ -1630,7 +1630,7 @@ func (i *IPTEntry) UnmarshalBytes(src []byte) { // Packed implements marshal.Marshallable.Packed. //go:nosplit func (i *IPTEntry) Packed() bool { - return i.IP.Packed() && i.Counters.Packed() + return i.Counters.Packed() && i.IP.Packed() } // MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. @@ -1656,7 +1656,7 @@ func (i *IPTEntry) UnmarshalUnsafe(src []byte) { // CopyOutN implements marshal.Marshallable.CopyOutN. //go:nosplit func (i *IPTEntry) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) { - if !i.IP.Packed() && i.Counters.Packed() { + if !i.Counters.Packed() && i.IP.Packed() { // Type IPTEntry doesn't have a packed layout in memory, fall back to MarshalBytes. buf := task.CopyScratchBuffer(i.SizeBytes()) // escapes: okay. i.MarshalBytes(buf) // escapes: fallback. @@ -1818,12 +1818,12 @@ func (i *IPTIP) UnmarshalBytes(src []byte) { // Packed implements marshal.Marshallable.Packed. //go:nosplit func (i *IPTIP) Packed() bool { - return i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() + return i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() } // MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe. func (i *IPTIP) MarshalUnsafe(dst []byte) { - if i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() { + if i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() { safecopy.CopyIn(dst, unsafe.Pointer(i)) } else { // Type IPTIP doesn't have a packed layout in memory, fallback to MarshalBytes. @@ -1844,7 +1844,7 @@ func (i *IPTIP) UnmarshalUnsafe(src []byte) { // CopyOutN implements marshal.Marshallable.CopyOutN. //go:nosplit func (i *IPTIP) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) { - if !i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() { + if !i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() { // Type IPTIP doesn't have a packed layout in memory, fall back to MarshalBytes. buf := task.CopyScratchBuffer(i.SizeBytes()) // escapes: okay. i.MarshalBytes(buf) // escapes: fallback. diff --git a/pkg/sentry/platform/ring0/defs_impl_arm64.go b/pkg/sentry/platform/ring0/defs_impl_arm64.go index 424b66f76..eba2eac30 100644 --- a/pkg/sentry/platform/ring0/defs_impl_arm64.go +++ b/pkg/sentry/platform/ring0/defs_impl_arm64.go @@ -3,11 +3,11 @@ package ring0 import ( "gvisor.dev/gvisor/pkg/sentry/arch" "gvisor.dev/gvisor/pkg/sentry/platform/ring0/pagetables" + "io" + "reflect" "fmt" "gvisor.dev/gvisor/pkg/usermem" - "io" - "reflect" ) // Useful bits. diff --git a/tools/go_marshal/marshal/marshal_impl_util.go b/tools/go_marshal/marshal/marshal_impl_util.go new file mode 100644 index 000000000..89c7d3575 --- /dev/null +++ b/tools/go_marshal/marshal/marshal_impl_util.go @@ -0,0 +1,78 @@ +// Copyright 2020 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package marshal + +import ( + "io" + + "gvisor.dev/gvisor/pkg/usermem" +) + +// StubMarshallable implements the Marshallable interface. +// StubMarshallable is a convenient embeddable type for satisfying the +// marshallable interface, but provides no actual implementation. It is +// useful when the marshallable interface needs to be implemented manually, +// but the caller doesn't require the full marshallable interface. +type StubMarshallable struct{} + +// WriteTo implements Marshallable.WriteTo. +func (StubMarshallable) WriteTo(w io.Writer) (n int64, err error) { + panic("Please implement your own WriteTo function") +} + +// SizeBytes implements Marshallable.SizeBytes. +func (StubMarshallable) SizeBytes() int { + panic("Please implement your own SizeBytes function") +} + +// MarshalBytes implements Marshallable.MarshalBytes. +func (StubMarshallable) MarshalBytes(dst []byte) { + panic("Please implement your own MarshalBytes function") +} + +// UnmarshalBytes implements Marshallable.UnmarshalBytes. +func (StubMarshallable) UnmarshalBytes(src []byte) { + panic("Please implement your own UnMarshalBytes function") +} + +// Packed implements Marshallable.Packed. +func (StubMarshallable) Packed() bool { + panic("Please implement your own Packed function") +} + +// MarshalUnsafe implements Marshallable.MarshalUnsafe. +func (StubMarshallable) MarshalUnsafe(dst []byte) { + panic("Please implement your own MarshalUnsafe function") +} + +// UnmarshalUnsafe implements Marshallable.UnmarshalUnsafe. +func (StubMarshallable) UnmarshalUnsafe(src []byte) { + panic("Please implement your own UnmarshalUnsafe function") +} + +// CopyIn implements Marshallable.CopyIn. +func (StubMarshallable) CopyIn(task Task, addr usermem.Addr) (int, error) { + panic("Please implement your own CopyIn function") +} + +// CopyOut implements Marshallable.CopyOut. +func (StubMarshallable) CopyOut(task Task, addr usermem.Addr) (int, error) { + panic("Please implement your own CopyOut function") +} + +// CopyOutN implements Marshallable.CopyOutN. +func (StubMarshallable) CopyOutN(task Task, addr usermem.Addr, limit int) (int, error) { + panic("Please implement your own CopyOutN function") +} |