72 lines
3.1 KiB
Swift
72 lines
3.1 KiB
Swift
// SPDX-FileCopyrightText: 2026 Kaede Akino
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// SPDX-License-Identifier: GPL-3.0-only
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import Foundation
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import TermindApplication
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import TermindDomain
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public nonisolated struct SSHHostMACAddressResolver: HostMACAddressResolving {
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private let coordinator: RemoteConnectionCoordinator
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public init(coordinator: RemoteConnectionCoordinator) { self.coordinator = coordinator }
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public func resolve(_ request: SSHConnectionRequest, progress: SSHRouteProgressHandler?) async throws
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-> [HostMACAddressCandidate]
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{
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var request = request
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request.configuration.beforeConnect = nil
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request.permitsAgentForwarding = false
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let connection = try await coordinator.connectConnection(using: request, progress: progress)
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do {
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var candidates: [HostMACAddressCandidate] = []
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for command in [Self.unixCommand, Self.windowsCommand] {
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try Task.checkCancellation()
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let result = try await connection.execute(
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command, workingDirectory: nil, stdin: nil, timeout: 10, outputLimit: 16 * 1024, onOutput: nil)
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candidates = Self.parse(result.stdout)
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if !candidates.isEmpty { break }
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}
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await connection.disconnect()
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return candidates
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} catch {
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await connection.disconnect()
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throw error
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}
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}
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static func parse(_ output: String) -> [HostMACAddressCandidate] {
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var seen: Set<MACAddress> = []
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return output.split(whereSeparator: \.isNewline).compactMap { line in
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let fields = line.split(separator: "|", omittingEmptySubsequences: false)
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guard fields.count == 2,
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let address = MACAddress(String(fields[1]).trimmingCharacters(in: .whitespaces)),
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seen.insert(address).inserted
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else { return nil }
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let name = String(fields[0]).trimmingCharacters(in: .whitespaces)
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guard !name.isEmpty else { return nil }
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return .init(interface: name, address: address)
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}
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}
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static let unixCommand = """
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sh -c 'if [ "$(uname -s)" = Darwin ]; then
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/usr/sbin/networksetup -listallhardwareports | awk \
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"/^Device: / {dev=\\$2} /^Ethernet Address: / {if(dev ~ /^en[0-9]+$/) print dev \\"|\\" \\$3}"
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else
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for d in /sys/class/net/*; do
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[ -e "$d/device" ] || continue
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[ "$(cat "$d/type" 2>/dev/null)" = 1 ] || continue
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printf "%s|%s\\n" "${d##*/}" "$(cat "$d/address")"
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done
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fi'
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"""
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static let windowsCommand: String = {
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// EncodedCommand works with either cmd.exe or PowerShell as OpenSSH's default shell.
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let script = """
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Get-NetAdapter -Physical | Where-Object { $_.MacAddress } | ForEach-Object \
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{ $_.Name + '|' + $_.MacAddress }
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"""
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let bytes = script.utf16.flatMap { [UInt8($0 & 255), UInt8($0 >> 8)] }
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return "powershell.exe -NoProfile -NonInteractive -EncodedCommand " + Data(bytes).base64EncodedString()
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}()
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}
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