1 files changed, 0 insertions, 92 deletions
diff --git a/pkg/sentry/devices/memdev/random.go b/pkg/sentry/devices/memdev/random.go
deleted file mode 100644
index acfa23149..000000000
--- a/pkg/sentry/devices/memdev/random.go
+++ /dev/null
@@ -1,92 +0,0 @@
-// 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 memdev
-
-import (
-	"sync/atomic"
-
-	"gvisor.dev/gvisor/pkg/context"
-	"gvisor.dev/gvisor/pkg/rand"
-	"gvisor.dev/gvisor/pkg/safemem"
-	"gvisor.dev/gvisor/pkg/sentry/vfs"
-	"gvisor.dev/gvisor/pkg/usermem"
-)
-
-const (
-	randomDevMinor  = 8
-	urandomDevMinor = 9
-)
-
-// randomDevice implements vfs.Device for /dev/random and /dev/urandom.
-type randomDevice struct{}
-
-// Open implements vfs.Device.Open.
-func (randomDevice) Open(ctx context.Context, mnt *vfs.Mount, vfsd *vfs.Dentry, opts vfs.OpenOptions) (*vfs.FileDescription, error) {
-	fd := &randomFD{}
-	if err := fd.vfsfd.Init(fd, opts.Flags, mnt, vfsd, &vfs.FileDescriptionOptions{
-		UseDentryMetadata: true,
-	}); err != nil {
-		return nil, err
-	}
-	return &fd.vfsfd, nil
-}
-
-// randomFD implements vfs.FileDescriptionImpl for /dev/random.
-type randomFD struct {
-	vfsfd vfs.FileDescription
-	vfs.FileDescriptionDefaultImpl
-	vfs.DentryMetadataFileDescriptionImpl
-
-	// off is the "file offset". off is accessed using atomic memory
-	// operations.
-	off int64
-}
-
-// Release implements vfs.FileDescriptionImpl.Release.
-func (fd *randomFD) Release() {
-	// noop
-}
-
-// PRead implements vfs.FileDescriptionImpl.PRead.
-func (fd *randomFD) PRead(ctx context.Context, dst usermem.IOSequence, offset int64, opts vfs.ReadOptions) (int64, error) {
-	return dst.CopyOutFrom(ctx, safemem.FromIOReader{rand.Reader})
-}
-
-// Read implements vfs.FileDescriptionImpl.Read.
-func (fd *randomFD) Read(ctx context.Context, dst usermem.IOSequence, opts vfs.ReadOptions) (int64, error) {
-	n, err := dst.CopyOutFrom(ctx, safemem.FromIOReader{rand.Reader})
-	atomic.AddInt64(&fd.off, n)
-	return n, err
-}
-
-// PWrite implements vfs.FileDescriptionImpl.PWrite.
-func (fd *randomFD) PWrite(ctx context.Context, src usermem.IOSequence, offset int64, opts vfs.WriteOptions) (int64, error) {
-	// In Linux, this mixes the written bytes into the entropy pool; we just
-	// throw them away.
-	return src.NumBytes(), nil
-}
-
-// Write implements vfs.FileDescriptionImpl.Write.
-func (fd *randomFD) Write(ctx context.Context, src usermem.IOSequence, opts vfs.WriteOptions) (int64, error) {
-	atomic.AddInt64(&fd.off, src.NumBytes())
-	return src.NumBytes(), nil
-}
-
-// Seek implements vfs.FileDescriptionImpl.Seek.
-func (fd *randomFD) Seek(ctx context.Context, offset int64, whence int32) (int64, error) {
-	// Linux: drivers/char/random.c:random_fops.llseek == urandom_fops.llseek
-	// == noop_llseek
-	return atomic.LoadInt64(&fd.off), nil
-}