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-rw-r--r--pkg/sentry/fs/tty/terminal.go46
1 files changed, 46 insertions, 0 deletions
diff --git a/pkg/sentry/fs/tty/terminal.go b/pkg/sentry/fs/tty/terminal.go
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+++ b/pkg/sentry/fs/tty/terminal.go
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+// Copyright 2018 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 tty
+
+import (
+ "gvisor.googlesource.com/gvisor/pkg/abi/linux"
+ "gvisor.googlesource.com/gvisor/pkg/refs"
+ "gvisor.googlesource.com/gvisor/pkg/sentry/context"
+)
+
+// Terminal is a pseudoterminal.
+//
+// +stateify savable
+type Terminal struct {
+ refs.AtomicRefCount
+
+ // n is the terminal index.
+ n uint32
+
+ // d is the containing directory.
+ d *dirInodeOperations
+
+ // ld is the line discipline of the terminal.
+ ld *lineDiscipline
+}
+
+func newTerminal(ctx context.Context, d *dirInodeOperations, n uint32) *Terminal {
+ termios := linux.DefaultSlaveTermios
+ return &Terminal{
+ d: d,
+ n: n,
+ ld: newLineDiscipline(termios),
+ }
+}