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J LoganandGitHub
4f88725158
- Part of work for #460. - With CZ release 0.17.0, the IP and CIDR address types changed from String to IPv4Address and CIDRv4, respectively. This PR applies the corresponding adaptations to container.
81 lines
2.8 KiB
Swift
81 lines
2.8 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025 Apple Inc. and the container project authors.
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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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//===----------------------------------------------------------------------===//
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import ContainerPersistence
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import ContainerXPC
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import ContainerizationError
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import ContainerizationExtras
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import Foundation
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import Logging
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public actor AllocationOnlyVmnetNetwork: Network {
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private let log: Logger
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private var _state: NetworkState
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/// Configure a bridge network that allows external system access using
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/// network address translation.
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public init(
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configuration: NetworkConfiguration,
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log: Logger
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) throws {
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guard configuration.mode == .nat else {
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throw ContainerizationError(.unsupported, message: "invalid network mode \(configuration.mode)")
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}
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guard configuration.ipv4Subnet == nil else {
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throw ContainerizationError(.unsupported, message: "IPv4 subnet assignment is not yet implemented")
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}
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self.log = log
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self._state = .created(configuration)
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}
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public var state: NetworkState {
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self._state
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}
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public nonisolated func withAdditionalData(_ handler: (XPCMessage?) throws -> Void) throws {
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try handler(nil)
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}
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public func start() async throws {
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guard case .created(let configuration) = _state else {
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throw ContainerizationError(.invalidState, message: "cannot start network \(_state.id) in \(_state.state) state")
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}
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log.info(
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"starting allocation-only network",
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metadata: [
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"id": "\(configuration.id)",
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"mode": "\(NetworkMode.nat.rawValue)",
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]
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)
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let subnet = DefaultsStore.get(key: .defaultSubnet)
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let subnetCIDR = try CIDRv4(subnet)
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let gateway = IPv4Address(subnetCIDR.lower.value + 1)
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self._state = .running(configuration, NetworkStatus(ipv4Subnet: subnetCIDR, ipv4Gateway: gateway))
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log.info(
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"started allocation-only network",
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metadata: [
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"id": "\(configuration.id)",
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"mode": "\(configuration.mode)",
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"cidr": "\(subnet)",
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]
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)
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}
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}
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