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-rw-r--r--pkg/abi/linux/linux_abi_autogen_unsafe.go24
-rw-r--r--pkg/sentry/devices/ttydev/ttydev.go46
-rw-r--r--pkg/sentry/platform/ring0/defs_impl_arm64.go6
3 files changed, 18 insertions, 58 deletions
diff --git a/pkg/abi/linux/linux_abi_autogen_unsafe.go b/pkg/abi/linux/linux_abi_autogen_unsafe.go
index 866b4c458..efe2aba2a 100644
--- a/pkg/abi/linux/linux_abi_autogen_unsafe.go
+++ b/pkg/abi/linux/linux_abi_autogen_unsafe.go
@@ -178,7 +178,7 @@ 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.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.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.
@@ -627,7 +627,7 @@ func (f *FUSEHeaderIn) UnmarshalBytes(src []byte) {
// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (f *FUSEHeaderIn) Packed() bool {
- return f.Unique.Packed() && f.Opcode.Packed()
+ return f.Opcode.Packed() && f.Unique.Packed()
}
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
@@ -653,7 +653,7 @@ func (f *FUSEHeaderIn) UnmarshalUnsafe(src []byte) {
// CopyOutN implements marshal.Marshallable.CopyOutN.
//go:nosplit
func (f *FUSEHeaderIn) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, 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 := task.CopyScratchBuffer(f.SizeBytes()) // escapes: okay.
f.MarshalBytes(buf) // escapes: fallback.
@@ -2025,7 +2025,7 @@ func (i *IPTEntry) Packed() bool {
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (i *IPTEntry) MarshalUnsafe(dst []byte) {
- if i.Counters.Packed() && i.IP.Packed() {
+ if i.IP.Packed() && i.Counters.Packed() {
safecopy.CopyIn(dst, unsafe.Pointer(i))
} else {
// Type IPTEntry doesn't have a packed layout in memory, fallback to MarshalBytes.
@@ -2076,7 +2076,7 @@ func (i *IPTEntry) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
// CopyIn implements marshal.Marshallable.CopyIn.
//go:nosplit
func (i *IPTEntry) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
- if !i.Counters.Packed() && i.IP.Packed() {
+ if !i.IP.Packed() && i.Counters.Packed() {
// Type IPTEntry 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.
@@ -2102,7 +2102,7 @@ func (i *IPTEntry) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
// WriteTo implements io.WriterTo.WriteTo.
func (i *IPTEntry) WriteTo(w io.Writer) (int64, error) {
- if !i.Counters.Packed() && i.IP.Packed() {
+ if !i.IP.Packed() && i.Counters.Packed() {
// Type IPTEntry doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := make([]byte, i.SizeBytes())
i.MarshalBytes(buf)
@@ -2213,7 +2213,7 @@ func (i *IPTIP) Packed() bool {
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (i *IPTIP) MarshalUnsafe(dst []byte) {
- 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() {
safecopy.CopyIn(dst, unsafe.Pointer(i))
} else {
// Type IPTIP doesn't have a packed layout in memory, fallback to MarshalBytes.
@@ -2234,7 +2234,7 @@ 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.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.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.
@@ -3014,7 +3014,7 @@ func (i *IP6TEntry) MarshalUnsafe(dst []byte) {
// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (i *IP6TEntry) UnmarshalUnsafe(src []byte) {
- if i.IPv6.Packed() && i.Counters.Packed() {
+ if i.Counters.Packed() && i.IPv6.Packed() {
safecopy.CopyOut(unsafe.Pointer(i), src)
} else {
// Type IP6TEntry doesn't have a packed layout in memory, fallback to UnmarshalBytes.
@@ -3196,12 +3196,12 @@ 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.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.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.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() {
safecopy.CopyIn(dst, unsafe.Pointer(i))
} else {
// Type IP6TIP doesn't have a packed layout in memory, fallback to MarshalBytes.
@@ -3278,7 +3278,7 @@ func (i *IP6TIP) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
// WriteTo implements io.WriterTo.WriteTo.
func (i *IP6TIP) WriteTo(w io.Writer) (int64, error) {
- if !i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() {
+ if !i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() {
// Type IP6TIP doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := make([]byte, i.SizeBytes())
i.MarshalBytes(buf)
diff --git a/pkg/sentry/devices/ttydev/ttydev.go b/pkg/sentry/devices/ttydev/ttydev.go
index fd4b79c46..664e54498 100644
--- a/pkg/sentry/devices/ttydev/ttydev.go
+++ b/pkg/sentry/devices/ttydev/ttydev.go
@@ -12,10 +12,7 @@
// See the License for the specific language governing permissions and
// limitations under the License.
-// Package ttydev implements devices for /dev/tty and (eventually)
-// /dev/console.
-//
-// TODO(b/159623826): Support /dev/console.
+// Package ttydev implements an unopenable vfs.Device for /dev/tty.
package ttydev
import (
@@ -23,7 +20,7 @@ import (
"gvisor.dev/gvisor/pkg/context"
"gvisor.dev/gvisor/pkg/sentry/fsimpl/devtmpfs"
"gvisor.dev/gvisor/pkg/sentry/vfs"
- "gvisor.dev/gvisor/pkg/usermem"
+ "gvisor.dev/gvisor/pkg/syserror"
)
const (
@@ -37,44 +34,7 @@ type ttyDevice struct{}
// Open implements vfs.Device.Open.
func (ttyDevice) Open(ctx context.Context, mnt *vfs.Mount, vfsd *vfs.Dentry, opts vfs.OpenOptions) (*vfs.FileDescription, error) {
- fd := &ttyFD{}
- if err := fd.vfsfd.Init(fd, opts.Flags, mnt, vfsd, &vfs.FileDescriptionOptions{
- UseDentryMetadata: true,
- }); err != nil {
- return nil, err
- }
- return &fd.vfsfd, nil
-}
-
-// ttyFD implements vfs.FileDescriptionImpl for /dev/tty.
-type ttyFD struct {
- vfsfd vfs.FileDescription
- vfs.FileDescriptionDefaultImpl
- vfs.DentryMetadataFileDescriptionImpl
- vfs.NoLockFD
-}
-
-// Release implements vfs.FileDescriptionImpl.Release.
-func (fd *ttyFD) Release(context.Context) {}
-
-// PRead implements vfs.FileDescriptionImpl.PRead.
-func (fd *ttyFD) PRead(ctx context.Context, dst usermem.IOSequence, offset int64, opts vfs.ReadOptions) (int64, error) {
- return 0, nil
-}
-
-// Read implements vfs.FileDescriptionImpl.Read.
-func (fd *ttyFD) Read(ctx context.Context, dst usermem.IOSequence, opts vfs.ReadOptions) (int64, error) {
- return 0, nil
-}
-
-// PWrite implements vfs.FileDescriptionImpl.PWrite.
-func (fd *ttyFD) PWrite(ctx context.Context, src usermem.IOSequence, offset int64, opts vfs.WriteOptions) (int64, error) {
- return src.NumBytes(), nil
-}
-
-// Write implements vfs.FileDescriptionImpl.Write.
-func (fd *ttyFD) Write(ctx context.Context, src usermem.IOSequence, opts vfs.WriteOptions) (int64, error) {
- return src.NumBytes(), nil
+ return nil, syserror.EIO
}
// Register registers all devices implemented by this package in vfsObj.
diff --git a/pkg/sentry/platform/ring0/defs_impl_arm64.go b/pkg/sentry/platform/ring0/defs_impl_arm64.go
index 424b66f76..eda1e1484 100644
--- a/pkg/sentry/platform/ring0/defs_impl_arm64.go
+++ b/pkg/sentry/platform/ring0/defs_impl_arm64.go
@@ -1,13 +1,13 @@
package ring0
import (
+ "fmt"
"gvisor.dev/gvisor/pkg/sentry/arch"
"gvisor.dev/gvisor/pkg/sentry/platform/ring0/pagetables"
-
- "fmt"
- "gvisor.dev/gvisor/pkg/usermem"
"io"
"reflect"
+
+ "gvisor.dev/gvisor/pkg/usermem"
)
// Useful bits.
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 16:24:45 +0000