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-rw-r--r--pkg/abi/linux/linux_abi_autogen_unsafe.go247
-rw-r--r--pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go4
-rw-r--r--pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go8
-rw-r--r--pkg/abi/linux/tty.go4
-rw-r--r--pkg/sentry/fs/host/tty.go40
-rw-r--r--pkg/sentry/fsimpl/host/tty.go40
-rw-r--r--pkg/sentry/platform/ring0/defs_impl_arm64.go2
7 files changed, 273 insertions, 72 deletions
diff --git a/pkg/abi/linux/linux_abi_autogen_unsafe.go b/pkg/abi/linux/linux_abi_autogen_unsafe.go
index 061e67b66..4aef01929 100644
--- a/pkg/abi/linux/linux_abi_autogen_unsafe.go
+++ b/pkg/abi/linux/linux_abi_autogen_unsafe.go
@@ -47,9 +47,11 @@ var _ marshal.Marshallable = (*Statx)(nil)
var _ marshal.Marshallable = (*StatxTimestamp)(nil)
var _ marshal.Marshallable = (*TCPInfo)(nil)
var _ marshal.Marshallable = (*TableName)(nil)
+var _ marshal.Marshallable = (*Termios)(nil)
var _ marshal.Marshallable = (*Timespec)(nil)
var _ marshal.Marshallable = (*Timeval)(nil)
var _ marshal.Marshallable = (*Utime)(nil)
+var _ marshal.Marshallable = (*Winsize)(nil)
var _ marshal.Marshallable = (*XTCounters)(nil)
// SizeBytes implements marshal.Marshallable.SizeBytes.
@@ -152,7 +154,7 @@ func (s *Statx) UnmarshalBytes(src []byte) {
// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (s *Statx) Packed() bool {
- return s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed()
+ return s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed()
}
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
@@ -178,7 +180,7 @@ 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.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 := task.CopyScratchBuffer(s.SizeBytes()) // escapes: okay.
s.MarshalBytes(buf) // escapes: fallback.
@@ -208,7 +210,7 @@ func (s *Statx) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
// CopyIn implements marshal.Marshallable.CopyIn.
//go:nosplit
func (s *Statx) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
- if !s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.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 UnmarshalBytes.
buf := task.CopyScratchBuffer(s.SizeBytes()) // escapes: okay.
length, err := task.CopyInBytes(addr, buf) // escapes: okay.
@@ -234,7 +236,7 @@ func (s *Statx) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
// WriteTo implements io.WriterTo.WriteTo.
func (s *Statx) WriteTo(writer io.Writer) (int64, error) {
- if !s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() {
+ if !s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() {
// Type Statx doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := make([]byte, s.SizeBytes())
s.MarshalBytes(buf)
@@ -709,7 +711,7 @@ func (f *FUSEHeaderIn) CopyIn(task marshal.Task, addr usermem.Addr) (int, error)
// WriteTo implements io.WriterTo.WriteTo.
func (f *FUSEHeaderIn) WriteTo(writer io.Writer) (int64, error) {
- if !f.Unique.Packed() && f.Opcode.Packed() {
+ if !f.Opcode.Packed() && f.Unique.Packed() {
// Type FUSEHeaderIn doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := make([]byte, f.SizeBytes())
f.MarshalBytes(buf)
@@ -2213,7 +2215,7 @@ func (i *IPTIP) Packed() bool {
// 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.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() {
safecopy.CopyIn(dst, unsafe.Pointer(i))
} else {
// Type IPTIP doesn't have a packed layout in memory, fallback to MarshalBytes.
@@ -2234,7 +2236,7 @@ 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.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() {
+ if !i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.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.
@@ -2264,7 +2266,7 @@ func (i *IPTIP) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
// CopyIn implements marshal.Marshallable.CopyIn.
//go:nosplit
func (i *IPTIP) CopyIn(task marshal.Task, addr usermem.Addr) (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 UnmarshalBytes.
buf := task.CopyScratchBuffer(i.SizeBytes()) // escapes: okay.
length, err := task.CopyInBytes(addr, buf) // escapes: okay.
@@ -3081,7 +3083,7 @@ func (i *IP6TEntry) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
// WriteTo implements io.WriterTo.WriteTo.
func (i *IP6TEntry) WriteTo(writer io.Writer) (int64, error) {
- if !i.IPv6.Packed() && i.Counters.Packed() {
+ if !i.Counters.Packed() && i.IPv6.Packed() {
// Type IP6TEntry doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := make([]byte, i.SizeBytes())
i.MarshalBytes(buf)
@@ -3196,12 +3198,12 @@ func (i *IP6TIP) UnmarshalBytes(src []byte) {
// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (i *IP6TIP) Packed() bool {
- return i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed()
+ return i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed()
}
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (i *IP6TIP) MarshalUnsafe(dst []byte) {
- if i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() {
+ if i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() {
safecopy.CopyIn(dst, unsafe.Pointer(i))
} else {
// Type IP6TIP doesn't have a packed layout in memory, fallback to MarshalBytes.
@@ -3211,7 +3213,7 @@ func (i *IP6TIP) MarshalUnsafe(dst []byte) {
// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (i *IP6TIP) UnmarshalUnsafe(src []byte) {
- if i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() {
+ if i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() {
safecopy.CopyOut(unsafe.Pointer(i), src)
} else {
// Type IP6TIP doesn't have a packed layout in memory, fallback to UnmarshalBytes.
@@ -3222,7 +3224,7 @@ func (i *IP6TIP) UnmarshalUnsafe(src []byte) {
// CopyOutN implements marshal.Marshallable.CopyOutN.
//go:nosplit
func (i *IP6TIP) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
- if !i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() {
+ if !i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() {
// Type IP6TIP doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := task.CopyScratchBuffer(i.SizeBytes()) // escapes: okay.
i.MarshalBytes(buf) // escapes: fallback.
@@ -3252,7 +3254,7 @@ func (i *IP6TIP) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
// CopyIn implements marshal.Marshallable.CopyIn.
//go:nosplit
func (i *IP6TIP) CopyIn(task marshal.Task, addr usermem.Addr) (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 IP6TIP doesn't have a packed layout in memory, fall back to UnmarshalBytes.
buf := task.CopyScratchBuffer(i.SizeBytes()) // escapes: okay.
length, err := task.CopyInBytes(addr, buf) // escapes: okay.
@@ -3278,7 +3280,7 @@ func (i *IP6TIP) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
// WriteTo implements io.WriterTo.WriteTo.
func (i *IP6TIP) WriteTo(writer io.Writer) (int64, error) {
- if !i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() {
+ if !i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() {
// Type IP6TIP doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := make([]byte, i.SizeBytes())
i.MarshalBytes(buf)
@@ -4657,3 +4659,218 @@ func (u *Utime) WriteTo(writer io.Writer) (int64, error) {
return int64(length), err
}
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+func (w *Winsize) SizeBytes() int {
+ return 8
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (w *Winsize) MarshalBytes(dst []byte) {
+ usermem.ByteOrder.PutUint16(dst[:2], uint16(w.Row))
+ dst = dst[2:]
+ usermem.ByteOrder.PutUint16(dst[:2], uint16(w.Col))
+ dst = dst[2:]
+ usermem.ByteOrder.PutUint16(dst[:2], uint16(w.Xpixel))
+ dst = dst[2:]
+ usermem.ByteOrder.PutUint16(dst[:2], uint16(w.Ypixel))
+ dst = dst[2:]
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (w *Winsize) UnmarshalBytes(src []byte) {
+ w.Row = uint16(usermem.ByteOrder.Uint16(src[:2]))
+ src = src[2:]
+ w.Col = uint16(usermem.ByteOrder.Uint16(src[:2]))
+ src = src[2:]
+ w.Xpixel = uint16(usermem.ByteOrder.Uint16(src[:2]))
+ src = src[2:]
+ w.Ypixel = uint16(usermem.ByteOrder.Uint16(src[:2]))
+ src = src[2:]
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (w *Winsize) Packed() bool {
+ return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (w *Winsize) MarshalUnsafe(dst []byte) {
+ safecopy.CopyIn(dst, unsafe.Pointer(w))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (w *Winsize) UnmarshalUnsafe(src []byte) {
+ safecopy.CopyOut(unsafe.Pointer(w), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (w *Winsize) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+ // Construct a slice backed by dst's underlying memory.
+ var buf []byte
+ hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+ hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(w)))
+ hdr.Len = w.SizeBytes()
+ hdr.Cap = w.SizeBytes()
+
+ length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+ // Since we bypassed the compiler's escape analysis, indicate that w
+ // must live until the use above.
+ runtime.KeepAlive(w)
+ return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (w *Winsize) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+ return w.CopyOutN(task, addr, w.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (w *Winsize) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+ // Construct a slice backed by dst's underlying memory.
+ var buf []byte
+ hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+ hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(w)))
+ hdr.Len = w.SizeBytes()
+ hdr.Cap = w.SizeBytes()
+
+ length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+ // Since we bypassed the compiler's escape analysis, indicate that w
+ // must live until the use above.
+ runtime.KeepAlive(w)
+ return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (w *Winsize) WriteTo(writer io.Writer) (int64, error) {
+ // Construct a slice backed by dst's underlying memory.
+ var buf []byte
+ hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+ hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(w)))
+ hdr.Len = w.SizeBytes()
+ hdr.Cap = w.SizeBytes()
+
+ length, err := writer.Write(buf)
+ // Since we bypassed the compiler's escape analysis, indicate that w
+ // must live until the use above.
+ runtime.KeepAlive(w)
+ return int64(length), err
+}
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+func (t *Termios) SizeBytes() int {
+ return 17 +
+ 1*NumControlCharacters
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (t *Termios) MarshalBytes(dst []byte) {
+ usermem.ByteOrder.PutUint32(dst[:4], uint32(t.InputFlags))
+ dst = dst[4:]
+ usermem.ByteOrder.PutUint32(dst[:4], uint32(t.OutputFlags))
+ dst = dst[4:]
+ usermem.ByteOrder.PutUint32(dst[:4], uint32(t.ControlFlags))
+ dst = dst[4:]
+ usermem.ByteOrder.PutUint32(dst[:4], uint32(t.LocalFlags))
+ dst = dst[4:]
+ dst[0] = byte(t.LineDiscipline)
+ dst = dst[1:]
+ for idx := 0; idx < NumControlCharacters; idx++ {
+ dst[0] = byte(t.ControlCharacters[idx])
+ dst = dst[1:]
+ }
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (t *Termios) UnmarshalBytes(src []byte) {
+ t.InputFlags = uint32(usermem.ByteOrder.Uint32(src[:4]))
+ src = src[4:]
+ t.OutputFlags = uint32(usermem.ByteOrder.Uint32(src[:4]))
+ src = src[4:]
+ t.ControlFlags = uint32(usermem.ByteOrder.Uint32(src[:4]))
+ src = src[4:]
+ t.LocalFlags = uint32(usermem.ByteOrder.Uint32(src[:4]))
+ src = src[4:]
+ t.LineDiscipline = uint8(src[0])
+ src = src[1:]
+ for idx := 0; idx < NumControlCharacters; idx++ {
+ t.ControlCharacters[idx] = uint8(src[0])
+ src = src[1:]
+ }
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (t *Termios) Packed() bool {
+ return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (t *Termios) MarshalUnsafe(dst []byte) {
+ safecopy.CopyIn(dst, unsafe.Pointer(t))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (t *Termios) UnmarshalUnsafe(src []byte) {
+ safecopy.CopyOut(unsafe.Pointer(t), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (t *Termios) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+ // Construct a slice backed by dst's underlying memory.
+ var buf []byte
+ hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+ hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(t)))
+ hdr.Len = t.SizeBytes()
+ hdr.Cap = t.SizeBytes()
+
+ length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+ // Since we bypassed the compiler's escape analysis, indicate that t
+ // must live until the use above.
+ runtime.KeepAlive(t)
+ return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (t *Termios) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+ return t.CopyOutN(task, addr, t.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (t *Termios) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+ // Construct a slice backed by dst's underlying memory.
+ var buf []byte
+ hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+ hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(t)))
+ hdr.Len = t.SizeBytes()
+ hdr.Cap = t.SizeBytes()
+
+ length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+ // Since we bypassed the compiler's escape analysis, indicate that t
+ // must live until the use above.
+ runtime.KeepAlive(t)
+ return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (t *Termios) WriteTo(writer io.Writer) (int64, error) {
+ // Construct a slice backed by dst's underlying memory.
+ var buf []byte
+ hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+ hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(t)))
+ hdr.Len = t.SizeBytes()
+ hdr.Cap = t.SizeBytes()
+
+ length, err := writer.Write(buf)
+ // Since we bypassed the compiler's escape analysis, indicate that t
+ // must live until the use above.
+ runtime.KeepAlive(t)
+ return int64(length), err
+}
+
diff --git a/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go b/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go
index 748a75dc8..8ad3a9306 100644
--- a/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go
+++ b/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go
@@ -293,7 +293,7 @@ func (s *Stat) Packed() bool {
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (s *Stat) MarshalUnsafe(dst []byte) {
- if s.MTime.Packed() && s.CTime.Packed() && s.ATime.Packed() {
+ if s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() {
safecopy.CopyIn(dst, unsafe.Pointer(s))
} else {
// Type Stat doesn't have a packed layout in memory, fallback to MarshalBytes.
@@ -303,7 +303,7 @@ func (s *Stat) MarshalUnsafe(dst []byte) {
// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (s *Stat) UnmarshalUnsafe(src []byte) {
- if s.MTime.Packed() && s.CTime.Packed() && s.ATime.Packed() {
+ if s.CTime.Packed() && s.ATime.Packed() && s.MTime.Packed() {
safecopy.CopyOut(unsafe.Pointer(s), src)
} else {
// Type Stat doesn't have a packed layout in memory, fallback to UnmarshalBytes.
diff --git a/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go b/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go
index 52441b977..7f5936811 100644
--- a/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go
+++ b/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go
@@ -295,12 +295,12 @@ func (s *Stat) UnmarshalBytes(src []byte) {
// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (s *Stat) Packed() bool {
- return s.CTime.Packed() && s.ATime.Packed() && s.MTime.Packed()
+ return s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed()
}
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (s *Stat) MarshalUnsafe(dst []byte) {
- if s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() {
+ if s.MTime.Packed() && s.CTime.Packed() && s.ATime.Packed() {
safecopy.CopyIn(dst, unsafe.Pointer(s))
} else {
// Type Stat doesn't have a packed layout in memory, fallback to MarshalBytes.
@@ -321,7 +321,7 @@ func (s *Stat) UnmarshalUnsafe(src []byte) {
// CopyOutN implements marshal.Marshallable.CopyOutN.
//go:nosplit
func (s *Stat) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
- if !s.MTime.Packed() && s.CTime.Packed() && s.ATime.Packed() {
+ if !s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() {
// Type Stat doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := task.CopyScratchBuffer(s.SizeBytes()) // escapes: okay.
s.MarshalBytes(buf) // escapes: fallback.
@@ -377,7 +377,7 @@ func (s *Stat) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
// WriteTo implements io.WriterTo.WriteTo.
func (s *Stat) WriteTo(writer io.Writer) (int64, error) {
- if !s.CTime.Packed() && s.ATime.Packed() && s.MTime.Packed() {
+ if !s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() {
// Type Stat doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := make([]byte, s.SizeBytes())
s.MarshalBytes(buf)
diff --git a/pkg/abi/linux/tty.go b/pkg/abi/linux/tty.go
index 8ac02aee8..e640969a6 100644
--- a/pkg/abi/linux/tty.go
+++ b/pkg/abi/linux/tty.go
@@ -23,6 +23,8 @@ const (
)
// Winsize is struct winsize, defined in uapi/asm-generic/termios.h.
+//
+// +marshal
type Winsize struct {
Row uint16
Col uint16
@@ -31,6 +33,8 @@ type Winsize struct {
}
// Termios is struct termios, defined in uapi/asm-generic/termbits.h.
+//
+// +marshal
type Termios struct {
InputFlags uint32
OutputFlags uint32
diff --git a/pkg/sentry/fs/host/tty.go b/pkg/sentry/fs/host/tty.go
index e29ae00f2..67a807f9d 100644
--- a/pkg/sentry/fs/host/tty.go
+++ b/pkg/sentry/fs/host/tty.go
@@ -24,6 +24,7 @@ import (
"gvisor.dev/gvisor/pkg/sync"
"gvisor.dev/gvisor/pkg/syserror"
"gvisor.dev/gvisor/pkg/usermem"
+ "gvisor.dev/gvisor/tools/go_marshal/primitive"
)
// LINT.IfChange
@@ -123,6 +124,11 @@ func (t *TTYFileOperations) Release(ctx context.Context) {
// Ioctl implements fs.FileOperations.Ioctl.
func (t *TTYFileOperations) Ioctl(ctx context.Context, _ *fs.File, io usermem.IO, args arch.SyscallArguments) (uintptr, error) {
+ task := kernel.TaskFromContext(ctx)
+ if task == nil {
+ return 0, syserror.ENOTTY
+ }
+
// Ignore arg[0]. This is the real FD:
fd := t.fileOperations.iops.fileState.FD()
ioctl := args[1].Uint64()
@@ -132,9 +138,7 @@ func (t *TTYFileOperations) Ioctl(ctx context.Context, _ *fs.File, io usermem.IO
if err != nil {
return 0, err
}
- _, err = usermem.CopyObjectOut(ctx, io, args[2].Pointer(), termios, usermem.IOOpts{
- AddressSpaceActive: true,
- })
+ _, err = termios.CopyOut(task, args[2].Pointer())
return 0, err
case linux.TCSETS, linux.TCSETSW, linux.TCSETSF:
@@ -146,9 +150,7 @@ func (t *TTYFileOperations) Ioctl(ctx context.Context, _ *fs.File, io usermem.IO
}
var termios linux.Termios
- if _, err := usermem.CopyObjectIn(ctx, io, args[2].Pointer(), &termios, usermem.IOOpts{
- AddressSpaceActive: true,
- }); err != nil {
+ if _, err := termios.CopyIn(task, args[2].Pointer()); err != nil {
return 0, err
}
err := ioctlSetTermios(fd, ioctl, &termios)
@@ -173,10 +175,8 @@ func (t *TTYFileOperations) Ioctl(ctx context.Context, _ *fs.File, io usermem.IO
// Map the ProcessGroup into a ProcessGroupID in the task's PID
// namespace.
- pgID := pidns.IDOfProcessGroup(t.fgProcessGroup)
- _, err := usermem.CopyObjectOut(ctx, io, args[2].Pointer(), &pgID, usermem.IOOpts{
- AddressSpaceActive: true,
- })
+ pgID := primitive.Int32(pidns.IDOfProcessGroup(t.fgProcessGroup))
+ _, err := pgID.CopyOut(task, args[2].Pointer())
return 0, err
case linux.TIOCSPGRP:
@@ -184,11 +184,6 @@ func (t *TTYFileOperations) Ioctl(ctx context.Context, _ *fs.File, io usermem.IO
// Equivalent to tcsetpgrp(fd, *argp).
// Set the foreground process group ID of this terminal.
- task := kernel.TaskFromContext(ctx)
- if task == nil {
- return 0, syserror.ENOTTY
- }
-
t.mu.Lock()
defer t.mu.Unlock()
@@ -208,12 +203,11 @@ func (t *TTYFileOperations) Ioctl(ctx context.Context, _ *fs.File, io usermem.IO
return 0, syserror.ENOTTY
}
- var pgID kernel.ProcessGroupID
- if _, err := usermem.CopyObjectIn(ctx, io, args[2].Pointer(), &pgID, usermem.IOOpts{
- AddressSpaceActive: true,
- }); err != nil {
+ var pgIDP primitive.Int32
+ if _, err := pgIDP.CopyIn(task, args[2].Pointer()); err != nil {
return 0, err
}
+ pgID := kernel.ProcessGroupID(pgIDP)
// pgID must be non-negative.
if pgID < 0 {
@@ -242,9 +236,7 @@ func (t *TTYFileOperations) Ioctl(ctx context.Context, _ *fs.File, io usermem.IO
if err != nil {
return 0, err
}
- _, err = usermem.CopyObjectOut(ctx, io, args[2].Pointer(), winsize, usermem.IOOpts{
- AddressSpaceActive: true,
- })
+ _, err = winsize.CopyOut(task, args[2].Pointer())
return 0, err
case linux.TIOCSWINSZ:
@@ -255,9 +247,7 @@ func (t *TTYFileOperations) Ioctl(ctx context.Context, _ *fs.File, io usermem.IO
// background ones) can set the winsize.
var winsize linux.Winsize
- if _, err := usermem.CopyObjectIn(ctx, io, args[2].Pointer(), &winsize, usermem.IOOpts{
- AddressSpaceActive: true,
- }); err != nil {
+ if _, err := winsize.CopyIn(task, args[2].Pointer()); err != nil {
return 0, err
}
err := ioctlSetWinsize(fd, &winsize)
diff --git a/pkg/sentry/fsimpl/host/tty.go b/pkg/sentry/fsimpl/host/tty.go
index 27cbd3059..7a9be4b97 100644
--- a/pkg/sentry/fsimpl/host/tty.go
+++ b/pkg/sentry/fsimpl/host/tty.go
@@ -25,6 +25,7 @@ import (
"gvisor.dev/gvisor/pkg/sync"
"gvisor.dev/gvisor/pkg/syserror"
"gvisor.dev/gvisor/pkg/usermem"
+ "gvisor.dev/gvisor/tools/go_marshal/primitive"
)
// TTYFileDescription implements vfs.FileDescriptionImpl for a host file
@@ -143,6 +144,11 @@ func (t *TTYFileDescription) Write(ctx context.Context, src usermem.IOSequence,
// Ioctl implements vfs.FileDescriptionImpl.
func (t *TTYFileDescription) Ioctl(ctx context.Context, io usermem.IO, args arch.SyscallArguments) (uintptr, error) {
+ task := kernel.TaskFromContext(ctx)
+ if task == nil {
+ return 0, syserror.ENOTTY
+ }
+
// Ignore arg[0]. This is the real FD:
fd := t.inode.hostFD
ioctl := args[1].Uint64()
@@ -152,9 +158,7 @@ func (t *TTYFileDescription) Ioctl(ctx context.Context, io usermem.IO, args arch
if err != nil {
return 0, err
}
- _, err = usermem.CopyObjectOut(ctx, io, args[2].Pointer(), termios, usermem.IOOpts{
- AddressSpaceActive: true,
- })
+ _, err = termios.CopyOut(task, args[2].Pointer())
return 0, err
case linux.TCSETS, linux.TCSETSW, linux.TCSETSF:
@@ -166,9 +170,7 @@ func (t *TTYFileDescription) Ioctl(ctx context.Context, io usermem.IO, args arch
}
var termios linux.Termios
- if _, err := usermem.CopyObjectIn(ctx, io, args[2].Pointer(), &termios, usermem.IOOpts{
- AddressSpaceActive: true,
- }); err != nil {
+ if _, err := termios.CopyIn(task, args[2].Pointer()); err != nil {
return 0, err
}
err := ioctlSetTermios(fd, ioctl, &termios)
@@ -192,10 +194,8 @@ func (t *TTYFileDescription) Ioctl(ctx context.Context, io usermem.IO, args arch
defer t.mu.Unlock()
// Map the ProcessGroup into a ProcessGroupID in the task's PID namespace.
- pgID := pidns.IDOfProcessGroup(t.fgProcessGroup)
- _, err := usermem.CopyObjectOut(ctx, io, args[2].Pointer(), &pgID, usermem.IOOpts{
- AddressSpaceActive: true,
- })
+ pgID := primitive.Int32(pidns.IDOfProcessGroup(t.fgProcessGroup))
+ _, err := pgID.CopyOut(task, args[2].Pointer())
return 0, err
case linux.TIOCSPGRP:
@@ -203,11 +203,6 @@ func (t *TTYFileDescription) Ioctl(ctx context.Context, io usermem.IO, args arch
// Equivalent to tcsetpgrp(fd, *argp).
// Set the foreground process group ID of this terminal.
- task := kernel.TaskFromContext(ctx)
- if task == nil {
- return 0, syserror.ENOTTY
- }
-
t.mu.Lock()
defer t.mu.Unlock()
@@ -226,12 +221,11 @@ func (t *TTYFileDescription) Ioctl(ctx context.Context, io usermem.IO, args arch
return 0, syserror.ENOTTY
}
- var pgID kernel.ProcessGroupID
- if _, err := usermem.CopyObjectIn(ctx, io, args[2].Pointer(), &pgID, usermem.IOOpts{
- AddressSpaceActive: true,
- }); err != nil {
+ var pgIDP primitive.Int32
+ if _, err := pgIDP.CopyIn(task, args[2].Pointer()); err != nil {
return 0, err
}
+ pgID := kernel.ProcessGroupID(pgIDP)
// pgID must be non-negative.
if pgID < 0 {
@@ -260,9 +254,7 @@ func (t *TTYFileDescription) Ioctl(ctx context.Context, io usermem.IO, args arch
if err != nil {
return 0, err
}
- _, err = usermem.CopyObjectOut(ctx, io, args[2].Pointer(), winsize, usermem.IOOpts{
- AddressSpaceActive: true,
- })
+ _, err = winsize.CopyOut(task, args[2].Pointer())
return 0, err
case linux.TIOCSWINSZ:
@@ -273,9 +265,7 @@ func (t *TTYFileDescription) Ioctl(ctx context.Context, io usermem.IO, args arch
// set the winsize.
var winsize linux.Winsize
- if _, err := usermem.CopyObjectIn(ctx, io, args[2].Pointer(), &winsize, usermem.IOOpts{
- AddressSpaceActive: true,
- }); err != nil {
+ if _, err := winsize.CopyIn(task, args[2].Pointer()); err != nil {
return 0, err
}
err := ioctlSetWinsize(fd, &winsize)
diff --git a/pkg/sentry/platform/ring0/defs_impl_arm64.go b/pkg/sentry/platform/ring0/defs_impl_arm64.go
index 2dac9ad14..424b66f76 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"
- "reflect"
"fmt"
"gvisor.dev/gvisor/pkg/usermem"
"io"
+ "reflect"
)
// Useful bits.
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 21:44:53 +0000