// Copyright 2018 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

syntax = "proto3";
option optimize_for = LITE_RUNTIME;

// This file defines messages used for interacting directly with containers
// running inside of a VM.
package vm_tools.cicerone;
option go_package = "vm_cicerone_proto";

// Message sent to cicerone when a VM has started up. This is just for
// tracking purposes by cicerone.
message NotifyVmStartedRequest {
  // Name of the VM.
  string vm_name = 1;

  // The owner of the VM.
  string owner_id = 2;

  // The virtual socket context id assigned to the VM.
  uint32 cid = 3;

  // The token to identify the VM, only used with plugin VMs that don't have
  // containers.
  string vm_token = 4;

  // The pid of the main VM process.
  uint32 pid = 5;
}

// Message sent to cicerone when concierge is about to stop a VM.
// This is just for tracking purposes by cicerone. This may not be
// sent if the VM stops unexpectedly.
message NotifyVmStoppingRequest {
  // Name of the VM.
  string vm_name = 1;

  // The owner of the VM.
  string owner_id = 2;
}

// Message sent to cicerone when a VM stopped or failed to complete startup.
// This is just for tracking purposes by cicerone.
message NotifyVmStoppedRequest {
  // Name of the VM.
  string vm_name = 1;

  // The owner of the VM.
  string owner_id = 2;
}

// Message sent to cicerone when requesting a token for linking to a container
// that is going to be started for a VM.
message ContainerTokenRequest {
  // Name of the VM.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM.
  string owner_id = 3;
}

// Reply to the GetContainerToken method.
message ContainerTokenResponse {
  // A token that should be passed into the container to identify itself. This
  // token will be the empty string if the request was invalid.
  string container_token = 1;
}

// Message used in the signal for when tremplin has started.
message TremplinStartedSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // The owner of the VM.
  string owner_id = 2;
}

// Message used in the signal for when a container has started up.
message ContainerStartedSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // The username of uid 1000 in the container.
  string container_username = 4;

  // The home directory of uid 1000 in the container.
  string container_homedir = 5;

  // The IPv4 address of the container.
  string ipv4_address = 6;
}

// Message used in the signal for when a container has shut down.
message ContainerShutdownSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;
}

// Request to launch on application in the specified VM/container. Used with the
// LaunchContainerApplication D-Bus message into vm_concierge.
message LaunchContainerApplicationRequest {
  // Display scaling of the app windows.
  enum DisplayScaling {
    // Default scaling.
    UNSCALED = 0;
    // Windows scaled. Used to scale up older app windows that don't show well
    // with HiDPI display otherwise.
    SCALED = 1;
  }

  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container within the VM to target, if empty the default
  // container name will be used.
  string container_name = 2;

  // ID of the application to launch, should map to the desktop_file_id that
  // is in the application list sent back from the container.
  string desktop_file_id = 3;

  // The owner of the vm and container.
  string owner_id = 4;

  // Files to pass as arguments when launching the application, if any, given
  // as absolute paths within the container's filesystem.
  repeated string files = 5;

  // Display scaling requested.
  DisplayScaling display_scaling = 6;
}

// Response sent back by vm_concierge when it receives a
// LaunchContainerApplication D-Bus message.
message LaunchContainerApplicationResponse {
  // If true, the requested application launched successfully.
  bool success = 1;

  // The failure_reason if the requested application could not be started.
  string failure_reason = 2;
}

// Request to get application icons in the specified VM/container. Used with the
// GetContainerAppIcon D-Bus message into vm_concierge.
message ContainerAppIconRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container within the VM to target, if empty the default
  // container name will be used.
  string container_name = 2;

  // IDs of the application to get icons for, should map to the desktop_file_id
  // that is in the application list sent back from the container.
  repeated string desktop_file_ids = 3;

  // The icon size with both its height and width equal to this number.
  int32 size = 4;

  // The target scale of this icon. This is the scale factor at which this icon
  // is designed to be used.
  int32 scale = 5;

  // The owner of the VM and container.
  string owner_id = 6;
}

// One desktop file ID with its icon.
message DesktopIcon {
  string desktop_file_id = 1;
  bytes icon = 2;
}

// Response sent back by vm_concierge when it receives a
// GetContainerAppIcon D-Bus message.
// Some desktop_file_id may not have an icon.
message ContainerAppIconResponse {
  repeated DesktopIcon icons = 1;
}

// Launch vshd request.
message LaunchVshdRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container within the VM to target.
  string container_name = 2;

  // The port for vshd to connect to.
  uint32 port = 3;

  // The owner of the VM and container.
  string owner_id = 4;
}

// Response sent back by vm_cicerone when it receives a LaunchVshd
// call.
message LaunchVshdResponse {
  // True if vshd was successfully spawned in the VM.
  bool success = 1;

  // The reason vshd could not be started, if |success| is false.
  string failure_reason = 2;

  // The cid the LaunchVshd request was sent to. Only valid if |success|
  // is true.
  uint32 cid = 3;
}

// Request to get information about a Linux package in the container.
message LinuxPackageInfoRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container within the VM to target.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Path to the package file (e.g. .deb) in the container's filesystem.
  string file_path = 4;

  // Name (not package_id) of package to look up. Used when |file_path| is
  // empty.
  string package_name = 5;
}

// Response sent back from a GetLinuxPackageInfo call.
message LinuxPackageInfoResponse {
  // True if the file was successfully parsed and the other fields are valid.
  bool success = 1;

  // Contains a textual reason for the failure in case success is false.
  string failure_reason = 2;

  // The package identifier is in the form of a semicolon delimited string of
  // the format: name;version;arch;data
  // name, version and arch are as expected. data is somewhat variant and refers
  // to the state of the package as well as potentially remote repository
  // information.
  string package_id = 3;

  // The license associated with the package. So far only the value of
  // 'unknown' has been observed for this field.
  string license = 4;

  // The description of the package, can be a multi-line text string.
  string description = 5;

  // The URL for the homepage of the project.
  string project_url = 6;

  // Size of the package file in bytes.
  uint64 size = 7;

  // Usually more of a title for a package, but sometimes less descriptive
  // than that.
  string summary = 8;
}

// Request to install a Linux package in the container.
message InstallLinuxPackageRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container within the VM to target.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Path to the package file (e.g. .deb) in the container's filesystem.
  string file_path = 4;

  // Package ID to install in the form "package_name;version;arch;data". Used
  // when |file_path| is empty.
  string package_id = 5;

  // Command identifier to track installation progress.
  string command_uuid = 6;
}

// Response sent back from a InstallLinuxPackage call.
message InstallLinuxPackageResponse {
  enum Status {
    // Install process was successfully started, all further updates will be
    // sent via the InstallLinuxPackageProgress signal.
    STARTED = 0;

    // Failed to start up for a general reason, specific details are given in
    // failure_reason.
    FAILED = 1;

    // Indicates another install is already in process, this one will not be
    // started.
    INSTALL_ALREADY_ACTIVE = 2;
  }
  Status status = 1;

  // Contains a textual reason for the failure in case of a FAILED status.
  string failure_reason = 2;
}

// Message used in a signal for updates on Linux package installations.
message InstallLinuxPackageProgressSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  enum Status {
    // Install has completed and was successful. No further signals will be
    // sent after this one.
    SUCCEEDED = 0;

    // Install failed to complete, the specific reason will be in
    // failure_details. No further signals will be sent after this one.
    FAILED = 1;

    // This is sent periodically while packages are being downloaded.
    DOWNLOADING = 2;

    // This is sent periodically during the general installation phase for
    // package and dependency installation.
    INSTALLING = 3;
  }

  // Current status of the installation progress.
  Status status = 4;

  // Overall percentage progress.
  uint32 progress_percent = 5;

  // Details relating to the failure state. This can be a multi-line string in
  // some cases (that's how it comes out of PackageKit, for example in the case
  // of an unsatisfiable dependency).
  string failure_details = 6;

  // Command identifier that is specified in |InstallLinuxPackageRequest| to
  // track installation progress.
  string command_uuid = 7;
}

// Request to uninstall the package owning the indicated file. Identifying the
// package-to-be-uninstalled by desktop file name is safer than using
// package_id; we don't watch for package upgrades so the package_id may be
// stale.
message UninstallPackageOwningFileRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container within the VM to target.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // The ID of the .desktop file inside the container. The container will find
  // the owning package and remove it.
  string desktop_file_id = 4;
}

// Response sent back from a UninstallPackageOwningFile call.
message UninstallPackageOwningFileResponse {
  enum Status {
    // Uninstall process was successfully started, all further updates will be
    // sent via the UninstallPackageProgress signal.
    STARTED = 0;

    // Failed to start up for a general reason, specific details are given in
    // failure_reason.
    FAILED = 1;

    // Indicates another blocking operation (uninstall, install, etc) is already
    // in progress, this one will not be started.
    BLOCKING_OPERATION_IN_PROGRESS = 2;
  }
  Status status = 1;

  // Contains a textual reason for the failure in case status is FAILED.
  string failure_reason = 2;
}

// Message used in a signal for updates on UninstallPackageOwningFile calls.
message UninstallPackageProgressSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  enum Status {
    // Uninstall has completed and was successful. No further signals will be
    // sent after this one.
    SUCCEEDED = 0;

    // Uninstall failed to complete, the specific reason will be in
    // failure_details. No further signals will be sent after this one.
    FAILED = 1;

    // This is sent while the uninstall is in progress. progress_percent will be
    // filled in.
    UNINSTALLING = 2;
  }

  // Current status of the uninstallation progress.
  Status status = 4;

  // Overall percentage progress.
  uint32 progress_percent = 5;

  // Details relating to the failure state.
  string failure_details = 6;
}

// Request for creating an LXD container.
message CreateLxdContainerRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container to start within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // LXD image server URL. Only simplestreams is supported for now.
  string image_server = 4;

  // LXD image alias.
  string image_alias = 5;

  // rootfs path to create the container from.
  string rootfs_path = 6;

  // metadata path to create the container from.
  string metadata_path = 7;
}

// Response for creating an LXD container.
message CreateLxdContainerResponse {
  enum Status {
    // The status of creating the container is unknown.
    UNKNOWN = 0;

    // The container is now being created. An LxdContainerCreated signal will
    // relay the final result.
    CREATING = 1;

    // A container with this name already exists.
    EXISTS = 2;

    // The container could not be created.
    FAILED = 3;
  }

  // Container creation status.
  Status status = 1;

  // The failure_reason if the container could not be created.
  string failure_reason = 2;
}

// Message used in the LxdContainerCreated signal for the outcome of an
// LxdCreateContainer message.
message LxdContainerCreatedSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  enum Status {
    // The container creation status is unknown.
    UNKNOWN = 0;

    // The container was successfully created.
    CREATED = 1;

    // The container download timed out.
    DOWNLOAD_TIMED_OUT = 2;

    // The container creation was cancelled.
    CANCELLED = 3;

    // The container creation failed for an unspecified reason.
    FAILED = 4;
  }

  // Container creation status.
  Status status = 4;

  // The failure_reason if the container was not successfully created.
  string failure_reason = 5;
}

// Request for deleting an LXD container.
message DeleteLxdContainerRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container to start within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;
}

// Response for deleting an LXD container.
message DeleteLxdContainerResponse {
  enum Status {
    // The status of deleting the container is unknown
    UNKNOWN = 0;

    // The container is being deleted.
    DELETING = 1;

    // The named container doesn't exist.
    DOES_NOT_EXIST = 2;

    // The container could not be deleted.
    FAILED = 3;
  }

  // Container creation status.
  Status status = 1;

  // The failure_reason if the container could not be created.
  string failure_reason = 2;
}

// Message used in the LxdContainerDeleted signal for the outcome of an
// LxdDeleteContainer message.
message LxdContainerDeletedSignal {
  enum Status {
    // Deletion status is unknown.
    UNKNOWN = 0;

    // The container has been deleted.
    DELETED = 1;

    // The container deletion was cancelled.
    CANCELLED = 2;

    // One or more steps failed and the container could not be deleted.
    FAILED = 3;
  }

  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Container deletion status.
  Status status = 4;

  // The failure_reason if the container was not successfully deleted.
  string failure_reason = 5;
}

// Request to set timezone for all containers in all VMs known to cicerone.
message SetTimezoneRequest {
  // The timezone name to set, for example "America/Denver" or "Etc/UTC".
  // See /usr/share/zoneinfo, 'timedatectl list-timezones', or the timezone-data
  // package for other valid names.
  //
  // This name will also specify the zoneinfo file from which cicerone will
  // parse a posix TZ string. That string will be used as a fallback in the
  // case that the VM does not support zoneinfo files for timezones.
  string timezone_name = 1;
}

// Response to setting timezone for all containers in all VMs known to cicerone.
message SetTimezoneResponse {
  // The number of containers for which the timezone was successfully set.
  int32 successes = 1;

  // The failure reason for each container for which the timezone could not be
  // set.
  repeated string failure_reasons = 2;
}

// Message used in the signal for when a container is downloading.
message LxdContainerDownloadingSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Container download progress, as a percentage.
  int32 download_progress = 4;
}

// Request for starting an LXD container.
message StartLxdContainerRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container to start within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Deprecated.  All calls are async.
  bool async = 4 [deprecated = true];

  // Full path where drivefs is mounted (/media/fuse/drivefs-<drivefs-hash>).
  string drivefs_mount_path = 5;

  // Represents the privilege level with which a container should be started. If
  // the container is already running this should take effect on the next boot.
  enum PrivilegeLevel {
    // Don't change the privilege level of the container.
    UNCHANGED = 0;

    // Make the container unprivileged.
    UNPRIVILEGED = 1;

    // Make the container privileged.
    PRIVILEGED = 2;
  }

  PrivilegeLevel privilege_level = 6;
}

// OsRelease encapsulates a subset of the os-release info as documented
// at https://www.freedesktop.org/software/systemd/man/os-release.html.
message OsRelease {
  // A pretty operating system name in a format suitable for presentation to the
  // user. May or may not contain a release code name or OS version of some
  // kind, as suitable. (e.g. "Debian GNU/Linux 10 (buster)").
  string pretty_name = 1;

  // A string identifying the operating system, without a version component,
  // and suitable for presentation to the user (e.g. "Debian GNU/Linux").
  string name = 2;

  // String identifying OS version possibly including release codename.
  // (e.g. "10 (buster)").
  string version = 3;

  // Lower case string (mostly numeric) identifying OS version (e.g. "10").
  string version_id = 4;

  // Lower case string identifying the operating system (e.g. "debian").
  string id = 5;
}

// Response for starting an LXD container.
message StartLxdContainerResponse {
  enum Status {
    // The status of starting the container is unknown.
    UNKNOWN = 0;

    // The container has started. This is only valid if async was false in the
    // request.
    STARTED = 1;

    // The container was already running.
    RUNNING = 2;

    // The container could not be started.
    FAILED = 3;

    // The container is starting. This is only valid if async was true in the
    // request.
    STARTING = 4;

    // The container is remapping its rootfs uids/gids and will take longer than
    // usual to start up. This is only valid if async was true in the request.
    REMAPPING = 5;
  }

  // Container startup status.
  Status status = 1;

  // The failure_reason if the container could not be started.
  string failure_reason = 2;

  // OS strings found in the container's /etc/os-release, e.g. "stretch".
  OsRelease os_release = 3;
}

// Message used in the signal for when a container is starting.
message LxdContainerStartingSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  enum Status {
    // Start status is unknown.
    UNKNOWN = 0;

    // The container has started. No more signals are expected.
    STARTED = 1;

    // The container start was cancelled. No more signals are expected.
    CANCELLED = 2;

    // One or more steps failed and the container could not be started. No
    // more signals are expected.
    FAILED = 3;
  }

  // The current status of starting the container.
  Status status = 4;

  // The failure_reason if the container was not successfully started.
  string failure_reason = 5;

  // OS strings found in the container's /etc/os-release, e.g. "stretch".
  OsRelease os_release = 6;
}

// Request for getting the primary user for an LXD container.
message GetLxdContainerUsernameRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container to get the primary user for.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;
}

// Response for getting the primary user for an LXD container.
message GetLxdContainerUsernameResponse {
  enum Status {
    // The status is unknown.
    UNKNOWN = 0;

    // The primary username is stored in the username field.
    SUCCESS = 1;

    // A container with the specified name doesn't exist.
    CONTAINER_NOT_FOUND = 2;

    // The container is not running, so the username could not be found.
    CONTAINER_NOT_RUNNING = 3;

    // The primary user doesn't exist.
    USER_NOT_FOUND = 4;

    // Some part of the operation failed.
    FAILED = 5;
  }

  // Status of getting the primary username.
  Status status = 1;

  // The primary username of the container, if successful.
  string username = 2;

  // The failure_reason if the username could not be retrieved.
  string failure_reason = 3;

  // The home directory of uid 1000 in the container.
  string homedir = 4;
}
// Request for setting up the user for an LXD container.
message SetUpLxdContainerUserRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container to start within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Username for the first user in the container.
  string container_username = 4;
}

// Response for setting up the user on an LXD container.
message SetUpLxdContainerUserResponse {
  enum Status {
    // The status of setting up the user is unknown.
    UNKNOWN = 0;

    // The user has been set up sucessfully.
    SUCCESS = 1;

    // The user already exists.
    EXISTS = 2;

    // Setting up the user failed.
    FAILED = 3;
  }

  // Status of setting up the user.
  Status status = 1;

  // The failure_reason if the user was not set up successfully.
  string failure_reason = 2;

  // The username of uid 1000 in the container.
  string container_username = 3;
}

// Request for debug information about virtual machine and container state.
message GetDebugInformationRequest {}

// Response for debug information about virtual machine and container state.
message GetDebugInformationResponse {
  // Debug information about virtual machine and container state in arbitrary
  // format.
  string debug_information = 1;
}

message ExportLxdContainerRequest {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container exporting.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Path to write the exported container.  This path, or a parent
  // must have already been shared using seneschal.  It is the path relative
  // to the VM root mount point (/mnt/shared) as returned in seneschal
  // SharePathResponse.path.  E.g.: "MyFiles/export".  If path is a directory,
  // it must already exist, and the export will be named <fingerprint>.tar.gz
  // otherwise this path must already exist as a file, or its parent directory
  // must exist.
  string export_path = 4;
}

message ExportLxdContainerResponse {
  enum Status {
    // The result is unknown.
    UNKNOWN = 0;

    // The container is exporting. Further updates will be delievered via
    // ExportLxdContainerProgressSignal.
    EXPORTING = 1;

    // One or more steps failed and the container could not be exported.
    FAILED = 2;
  }

  // Current container status.
  Status status = 1;

  // Details relating to the failure state.
  string failure_reason = 2;
}

message CancelExportLxdContainerRequest {
  // Name of the VM the container is in.
  string vm_name = 1;

  // The owner of the VM and container.
  string owner_id = 2;

  // The container name of the in-progress export.
  string in_progress_container_name = 3;
}

message CancelExportLxdContainerResponse {
  enum Status {
    // The result is unknown.
    UNKNOWN = 0;

    // The cancel for the in-progress request has been queued.
    // The in-progress request may yet complete before the cancel is processed.
    CANCEL_QUEUED = 1;

    // No in-progress request was found with that container name.
    OPERATION_NOT_FOUND = 2;

    // One or more steps failed and the cancel could not be scheduled.
    FAILED = 3;
  }

  // The status of the cancellation.
  Status status = 1;

  // Details relating to the failure state.
  string failure_reason = 2;
}

message ExportLxdContainerProgressSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container exporting.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  enum Status {
    // The result is unknown.
    UNKNOWN = 0;

    // Export is completed.
    DONE = 1;

    // One or more steps failed and the container could not be exported.
    FAILED = 2;

    // Deprecated. The container is exporting into a tar file.
    EXPORTING_TAR = 3 [deprecated = true];

    // Deprecated. The container tar file is being compressed into an image
    // file.
    EXPORTING_COMPRESS = 4 [deprecated = true];

    // Deprecated. The exported image file is being downloaded.
    EXPORTING_DOWNLOAD = 5 [deprecated = true];

    // Deprecated. The exported image file is being packed. This is equivalent
    // to tar/compress.
    EXPORTING_PACK = 6 [deprecated = true];

    // EXPORTING_PACK and EXPORTING_DOWNLOAD have been combined into
    // EXPORTING_STREAMING. The exported image file is being tar'd, compressed'd
    // and download'd out of the container.
    EXPORTING_STREAMING = 7;

    // The export was cancelled by a CancelExportLxdContainerRequest.
    CANCELLED = 8;
  }

  // Container status.
  Status status = 4;

  // Deprecated. Percentage progress for the current stage given in status.
  uint32 progress_percent = 5 [deprecated = true];

  // Deprecated. Speed (bytes per second) for the current stage given in status.
  uint64 progress_speed = 6 [deprecated = true];

  // Details relating to the failure state.
  string failure_reason = 7;

  // Total number of files in the input container.
  uint32 total_input_files = 8;

  // Total size of the files in the input container.
  uint64 total_input_bytes = 9;

  // Number of files in the input container that have been downloaded.
  uint32 input_files_streamed = 10;

  // Size of the files in the input container that have been downloaded.
  uint64 input_bytes_streamed = 11;

  // Number of compressed bytes that have been exported.
  uint64 bytes_exported = 12;
}

message ImportLxdContainerRequest {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container importing.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Path to read the imported container.  This is a file which
  // must have already been shared using seneschal.  It is the path relative
  // to the VM root mount point (/mnt/shared) as returned in seneschal
  // SharePathResponse.path.  E.g.: "MyFiles/export/backup.tar.gz".
  string import_path = 4;
}

message ImportLxdContainerResponse {
  enum Status {
    // The result is unknown.
    UNKNOWN = 0;

    // The container is importing. Further updates will be delievered via
    // ImportLxdContainerProgressSignal.
    IMPORTING = 1;

    // One or more steps failed and the container could not be imported.
    FAILED = 2;
  }

  // Current container status.
  Status status = 1;

  // Details relating to the failure state.
  string failure_reason = 2;
}

message CancelImportLxdContainerRequest {
  // Name of the VM the container is in.
  string vm_name = 1;

  // The owner of the VM and container.
  string owner_id = 2;

  // The container name of the in-progress import.
  string in_progress_container_name = 3;
}

message CancelImportLxdContainerResponse {
  enum Status {
    // The result is unknown.
    UNKNOWN = 0;

    // The cancel for the in-progress request has been queued.
    // The in-progress request may yet complete before the cancel is processed.
    CANCEL_QUEUED = 1;

    // No in-progress request was found with that container name.
    OPERATION_NOT_FOUND = 2;

    // One or more steps failed and the cancel could not be scheduled.
    FAILED = 3;
  }

  // The status of the cancellation.
  Status status = 1;

  // Details relating to the failure state.
  string failure_reason = 2;
}

message ImportLxdContainerProgressSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container importing.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  enum Status {
    // The result is unknown.
    UNKNOWN = 0;

    // Import is completed.
    DONE = 1;

    // One or more steps failed and the container could not be imported.
    FAILED = 2;

    // The image is being uploaded.
    IMPORTING_UPLOAD = 3;

    // The image is being unpacked to create a container.
    IMPORTING_UNPACK = 4;

    // The container could not be imported due to mismatched architecture.
    FAILED_ARCHITECTURE = 5;

    // The container could not be imported due to insufficient space.
    FAILED_SPACE = 6;

    // The import was cancelled by a CancelImportLxdContainerRequest.
    CANCELLED = 7;
  }

  // Container status.
  Status status = 4;

  // Percentage progress for the current stage given in status.
  uint32 progress_percent = 5;

  // Speed (bytes per second) for the current stage given in status.
  uint64 progress_speed = 6;

  // Details relating to the failure state.
  string failure_reason = 7;

  // Architecture of device.  Set when status is FAILED_ARCHITECTURE.
  string architecture_device = 8;

  // Architecture of container which failed to import.
  // Set when status is FAILED_ARCHITECTURE.
  string architecture_container = 9;

  // Available space for import.  Set when status is FAILED_SPACE.
  uint64 available_space = 10;

  // Minimum required space for import.  Set when status is FAILED_SPACE.
  uint64 min_required_space = 11;
}

message PendingAppListUpdatesSignal {
  // Name of the VM on which the app list updates will run.
  string vm_name = 1;

  // Name of the container on which the app list updates will run.
  string container_name = 2;

  // Number of currently scheduled app list updates for this container.
  uint32 count = 3;
}

message ApplyAnsiblePlaybookRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container within the VM to target.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Ansible playbook to be applied.
  string playbook = 4;
}

message ApplyAnsiblePlaybookResponse {
  enum Status {
    // The status is unknown.
    UNKNOWN = 0;

    // Application process was successfully started, all further updates will be
    // sent via the ApplyAnsiblePlaybookProgress signal.
    STARTED = 1;

    // Failed to start up for a general reason, specific details are given in
    // failure_reason.
    FAILED = 2;
  }
  Status status = 1;

  // Contains a textual reason for the failure in case of a FAILED status.
  string failure_reason = 2;
}

message ApplyAnsiblePlaybookProgressSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  enum Status {
    // The signal has unknown status.
    UNKNOWN = 0;

    // Application has completed and was successfull. No further signals will be
    // sent after this one.
    SUCCEEDED = 1;

    // Application failed to complete, the specific reason will be in
    // failure_details. No further signals will be sent after this one.
    FAILED = 2;

    // Ansible playbook is being currently applied.
    IN_PROGRESS = 3;
  }

  // Current status of the application progress.
  Status status = 4;

  // Contains a textual reason for the failure in case of a FAILED status.
  string failure_details = 5;
}

message ConfigureForArcSideloadRequest {
  // Name of the VM to target.
  string vm_name = 1;

  // Name of the container within the VM to target.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;
}

message ConfigureForArcSideloadResponse {
  enum Status {
    // The status is unknown.
    UNKNOWN = 0;

    // The configuration succeeded.
    SUCCEEDED = 2;

    // The configuration failed.
    FAILED = 3;
  }

  // Status of the request.
  Status status = 1;

  // If status is FAILED, contains the reason the request failed.
  string failure_reason = 2;
}

// Request for a container to create a tunnel to a prepared port on the host.
message ConnectChunnelRequest {
  // Name of the VM to tunnel traffic to.
  string vm_name = 1;

  // Name of the container within the VM to target.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Name of the container to tunnel traffic to.
  // Target vsock port to forward traffic from. This port must be listening
  // and ready to accept a connection from the chunnel client.
  uint32 chunneld_port = 4;

  // Target TCPv4 port to forward traffic to. Chunnel in the guest will connect
  // to localhost:target_tcp4_port.
  uint32 target_tcp4_port = 5;
}

// Response to ConnectChunnelRequest.
message ConnectChunnelResponse {
  enum Status {
    // The result is unknown.
    UNKNOWN = 0;

    // Chunnel was successfully launched in the container.
    SUCCESS = 1;

    // One or more steps failed and chunnel could not be connected.
    FAILED = 2;
  }

  // Status of the request.
  Status status = 1;

  // If status is FAILED, contains the reason the request failed.
  string failure_reason = 2;
}

message UpgradeContainerRequest {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container to upgrade.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  enum Version {
    // Uknown OS version.
    UNKNOWN = 0;

    // Debian 9 AKA Stretch.
    DEBIAN_STRETCH = 1;

    // Debian 10 AKA Buster.
    DEBIAN_BUSTER = 2;
  }
  // Version from which the container will upgrade.
  Version source_version = 4;

  // Version to which the container will be upgraded.
  Version target_version = 5;
}

message UpgradeContainerResponse {
  enum Status {
    // The result is unknown.
    UNKNOWN = 0;

    // Upgrade successfully started.
    STARTED = 1;

    // An upgrade is already running.
    ALREADY_RUNNING = 2;

    // Upgrade path not supported e.g. buster->stretch.
    NOT_SUPPORTED = 3;

    // The container is already upgraded to the requested target_version.
    ALREADY_UPGRADED = 4;

    // Failed to start the upgrade for some other reason.
    FAILED = 5;
  }

  // Status of the request.
  Status status = 1;

  // If status is FAILED, contains the reason the request failed.
  string failure_reason = 2;
}

message CancelUpgradeContainerRequest {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container being upgraded.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;
}

message CancelUpgradeContainerResponse {
  enum Status {
    // The status is unknown.
    UNKNOWN = 0;

    // Upgrade was not in progress, nothing to do.
    NOT_RUNNING = 1;

    // Upgrade cancelled.
    CANCELLED = 2;

    // Failed to cancel.
    FAILED = 3;
  }

  // Status of the request.
  Status status = 1;

  // If status is FAILED, contains the reason the request failed.
  string failure_reason = 2;
}

message UpgradeContainerProgressSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container to upgrade.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  enum Status {
    // The current status is unknown.
    UNKNOWN = 0;

    // Still in progress.
    IN_PROGRESS = 1;

    // Completed successfully.
    SUCCEEDED = 2;

    // Failed to complete.
    FAILED = 3;
  }

  // Status of the upgrade.
  Status status = 4;

  // If status is FAILED, contains the reason the upgrade failed.
  string failure_reason = 5;

  // Human readable upgrade progress.
  repeated string progress_messages = 6;
}

message StartLxdRequest {
  // Name of the VM to start LXD in.
  string vm_name = 1;

  // The owner of the VM.
  string owner_id = 2;

  // If true, opt-in to resetting the LXD DB on launch. If false, use whatever
  // the default behaviour is.
  bool reset_lxd_db = 3;
}

message StartLxdResponse {
  enum Status {
    // The status of creating the container is unknown.
    UNKNOWN = 0;

    // LXD is starting.
    STARTING = 1;

    // LXD is already running.
    ALREADY_RUNNING = 2;

    // Could not launch LXD.
    FAILED = 3;
  }

  // LXD launch status
  Status status = 1;

  // The failure_reason if LXD could not be started.
  string failure_reason = 2;
}

// Sent by tremplin to update the host on the start progress of starting LXD.
message StartLxdProgressSignal {
  enum Status {
    // The status of creating the container is unknown.
    UNKNOWN = 0;

    // LXD is starting.
    STARTING = 1;

    // Something went wrong, Tremplin is trying to recover LXD.
    // This is still an in-progress status.
    RECOVERING = 2;

    // LXD is now running.
    STARTED = 3;

    // Could not launch LXD.
    FAILED = 4;
  }

  // Name of the VM to start LXD in.
  string vm_name = 1;

  // The owner of the VM.
  string owner_id = 2;

  // LXD launch status
  Status status = 3;

  // The failure_reason if LXD could not be started.
  string failure_reason = 4;
}

// Request to watch files and notify if there are changes. Used by FilesApp.
message AddFileWatchRequest {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Directory in container relative to $HOME to watch.
  string path = 4;
}

message AddFileWatchResponse {
  enum Status {
    // The current status is unknown.
    UNKNOWN = 0;

    // Watch added successfully.
    SUCCEEDED = 2;

    // Add watch failed.
    FAILED = 1;
  }

  // Add watch status.
  Status status = 1;

  // The failure_reason if the watcher could not be added.
  string failure_reason = 2;
}

// Request to stop watching files.
message RemoveFileWatchRequest {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Directory in container relative to $HOME to stop watching.
  string path = 4;
}

message RemoveFileWatchResponse {
  enum Status {
    // The current status is unknown.
    UNKNOWN = 0;

    // Watch removed successfully.
    SUCCEEDED = 2;

    // Remove watch failed.
    FAILED = 1;
  }

  // Remove watch status.
  Status status = 1;

  // The failure_reason if the watcher could not be removed.
  string failure_reason = 2;
}

// Sent by garcon to notify that a file in a watched directory has changed. Used
// by FilesApp.
message FileWatchTriggeredSignal {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Path in container relative to $HOME that has changed.
  string path = 4;
}

// Sent by vsh to register session information such as the container shell pid,
// keyed from the host vsh pid. Crostini terminal will look up this info for
// features such as starting new terminals in the same cwd.
message RegisterVshSessionRequest {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Process ID of vsh running in host.
  int32 host_vsh_pid = 4;

  // Process ID of shell spawned from vshd running in container. Set to 0 to
  // remove mapping.
  int32 container_shell_pid = 5;
}

message RegisterVshSessionResponse {
  // True if pid mapping was completed.
  bool success = 1;

  // The reason the pid mapping failed.
  string failure_reason = 2;
}

// Sent by chrome to query the container shell pid associated with vsh.
message GetVshSessionRequest {
  // Name of the VM the container is in.
  string vm_name = 1;

  // Name of the container within the VM.
  string container_name = 2;

  // The owner of the VM and container.
  string owner_id = 3;

  // Process ID of vsh running in host.
  int32 host_vsh_pid = 4;
}

message GetVshSessionResponse {
  // True if container pid was found.
  bool success = 1;

  // The reason the pid was not found.
  string failure_reason = 2;

  // Process ID of shell spawned from vshd running in container.
  int32 container_shell_pid = 3;
}