1 files changed, 45 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/kernfs/symlink.go b/pkg/sentry/fsimpl/kernfs/symlink.go
new file mode 100644
index 000000000..068063f4e
--- /dev/null
+++ b/pkg/sentry/fsimpl/kernfs/symlink.go
@@ -0,0 +1,45 @@
+// Copyright 2019 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 kernfs
+
+import (
+	"gvisor.dev/gvisor/pkg/abi/linux"
+	"gvisor.dev/gvisor/pkg/sentry/context"
+	"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
+)
+
+type staticSymlink struct {
+	InodeAttrs
+	InodeNoopRefCount
+	InodeSymlink
+
+	target string
+}
+
+var _ Inode = (*staticSymlink)(nil)
+
+// NewStaticSymlink creates a new symlink file pointing to 'target'.
+func NewStaticSymlink(creds *auth.Credentials, ino uint64, perm linux.FileMode, target string) *Dentry {
+	inode := &staticSymlink{target: target}
+	inode.Init(creds, ino, linux.ModeSymlink|perm)
+
+	d := &Dentry{}
+	d.Init(inode)
+	return d
+}
+
+func (s *staticSymlink) Readlink(_ context.Context) (string, error) {
+	return s.target, nil
+}