mirror of
https://github.com/apple/container.git
synced 2026-07-14 05:27:02 +00:00
Danny Canter
0a7fb07757
The old mtu default in containerization was 1280 to account for some alpine/musl images that have issues with 1500. This changed in the last couple tags to be modifiable, but the new default is the standard 1500. Ideally we eventually allow supplying the mtu to be used when you create a network (or possibly a container creation setting), but for now just default in here back to what CZ used to use.
57 lines
2.2 KiB
Swift
57 lines
2.2 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025-2026 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 ContainerResource
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import ContainerSandboxService
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import ContainerXPC
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import Containerization
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import ContainerizationError
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import Logging
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import Virtualization
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import vmnet
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/// Interface strategy for containers that use macOS's custom network feature.
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@available(macOS 26, *)
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struct NonisolatedInterfaceStrategy: InterfaceStrategy {
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private let log: Logger
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public init(log: Logger) {
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self.log = log
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}
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public func toInterface(attachment: Attachment, interfaceIndex: Int, additionalData: XPCMessage?) throws -> Interface {
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guard let additionalData else {
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throw ContainerizationError(.invalidState, message: "network state does not contain custom network reference")
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}
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var status: vmnet_return_t = .VMNET_SUCCESS
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guard let networkRef = vmnet_network_create_with_serialization(additionalData.underlying, &status) else {
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throw ContainerizationError(.invalidState, message: "cannot deserialize custom network reference, status \(status)")
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}
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log.info("creating NATNetworkInterface with network reference")
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let ipv4Gateway = interfaceIndex == 0 ? attachment.ipv4Gateway : nil
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return NATNetworkInterface(
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ipv4Address: attachment.ipv4Address,
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ipv4Gateway: ipv4Gateway,
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reference: networkRef,
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macAddress: attachment.macAddress,
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// https://github.com/apple/containerization/pull/38
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mtu: 1280
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)
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}
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}
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