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65 lines
1.9 KiB
Protocol Buffer
65 lines
1.9 KiB
Protocol Buffer
// Copyright 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// A proto for serializing the sandbox2::MountTree class
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syntax = "proto3";
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package sandbox2;
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// The MountTree maps path components to mount operations (bind/tmpfs). The path
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// is encoded in the key of the entries map, with the root node representing /.
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// To get the full path of a node, you will need to assemble the keys starting
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// at the root node.
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message MountTree {
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// FileNode represents a bind mount for a regular file using "outside" as the
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// source.
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message FileNode {
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optional string outside = 2;
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optional bool writable = 3;
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}
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// DirNode is like FileNode but for directories.
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message DirNode {
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optional string outside = 2;
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optional bool writable = 3;
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}
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// TmpfsNode mounts a tmpfs with given options.
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message TmpfsNode {
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optional string tmpfs_options = 1;
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}
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// RootNode is as special node for root of the MountTree
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message RootNode {
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optional bool writable = 3;
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}
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message Node {
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oneof node {
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FileNode file_node = 1;
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DirNode dir_node = 2;
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TmpfsNode tmpfs_node = 3;
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RootNode root_node = 4;
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}
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}
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// The entries are mappings from the next path component to the subtree.
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map<string, MountTree> entries = 1;
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// The node of the current path. If not set, we'll just create a directory at
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// this position.
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optional Node node = 2;
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}
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