1 files changed, 38 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/tmpfs/named_pipe.go b/pkg/sentry/fsimpl/tmpfs/named_pipe.go
new file mode 100755
index 000000000..8d77b3fa8
--- /dev/null
+++ b/pkg/sentry/fsimpl/tmpfs/named_pipe.go
@@ -0,0 +1,38 @@
+// 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 tmpfs
+
+import (
+	"gvisor.dev/gvisor/pkg/abi/linux"
+	"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
+	"gvisor.dev/gvisor/pkg/sentry/kernel/pipe"
+	"gvisor.dev/gvisor/pkg/usermem"
+)
+
+type namedPipe struct {
+	inode inode
+
+	pipe *pipe.VFSPipe
+}
+
+// Preconditions:
+//   * fs.mu must be locked.
+//   * rp.Mount().CheckBeginWrite() has been called successfully.
+func (fs *filesystem) newNamedPipe(creds *auth.Credentials, mode linux.FileMode) *inode {
+	file := &namedPipe{pipe: pipe.NewVFSPipe(true /* isNamed */, pipe.DefaultPipeSize, usermem.PageSize)}
+	file.inode.init(file, fs, creds, linux.S_IFIFO|mode)
+	file.inode.nlink = 1 // Only the parent has a link.
+	return &file.inode
+}