Created
December 25, 2019 06:17
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print all available framebuffers
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| // Created by mrdekk on 24/12/2019. | |
| // | |
| // Original PHP code was taken here https://www.tonymacx86.com/threads/apple-intel-amd-ati-framebuffers.112299/post-1640375 and attributed to 'Pavo' | |
| import Foundation | |
| import Cocoa | |
| let portMapping: [String: String] = [ | |
| "02000000": "LVDS", | |
| "04000000": "DVI-D", | |
| "08000000": "SVIDEO", | |
| "10000000": "VGA", | |
| "00020000": "DVI-SL", | |
| "00040000": "DP", | |
| "00080000": "HDMI", | |
| "00100000": "UNKNOWN" | |
| ] | |
| do { | |
| let contents = try FileManager.default.contentsOfDirectory(atPath: "/System/Library/Extensions") | |
| for kext in contents { | |
| guard (kext.hasPrefix("AMD") || kext.hasPrefix("ATI")) else { | |
| continue | |
| } | |
| guard kext.hasSuffix("Controller.kext") else { | |
| continue | |
| } | |
| print("KEXT: \(kext)") | |
| let kb: String? = { | |
| do { | |
| let path = "/System/Library/Extensions/\(kext)/Contents/MacOS" | |
| let pathFiles = try FileManager.default.contentsOfDirectory(atPath: path) | |
| if !pathFiles.isEmpty { | |
| return "\(path)/\(pathFiles[0])" | |
| } | |
| } catch { | |
| } | |
| return nil | |
| }() | |
| guard let kextBinary = kb else { | |
| continue | |
| } | |
| print(" binary: \(kextBinary)") | |
| let task = Process() | |
| let pipe = Pipe() | |
| task.launchPath = "/usr/bin/otool" | |
| task.arguments = ["-Xvt", kextBinary] | |
| task.standardOutput = pipe | |
| task.launch() | |
| let data = pipe.fileHandleForReading.readDataToEndOfFile() | |
| let result = String(data: data, encoding: .utf8) | |
| task.waitUntilExit() | |
| guard let lines = result?.split(whereSeparator: { $0.isNewline }) else { | |
| continue | |
| } | |
| var i = 0 | |
| while (i < lines.count) { | |
| let line = lines[i] | |
| if !line.hasPrefix("__ZN") || !line.contains("Info10createInfo") { | |
| i += 1 | |
| continue | |
| } | |
| guard | |
| let lesser = line.range(of: "__ZN")?.upperBound, | |
| let upper = line.range(of: "Info10createInfo")?.lowerBound | |
| else { | |
| i += 1 | |
| continue | |
| } | |
| let framebufferName = String(line[lesser..<upper]).filter { $0.isLetter } | |
| var addr: Int = -1 | |
| var ports: Int = -1 | |
| var ji: Int = -1 | |
| while i < lines.count && !lines[i].contains("ret") { | |
| let lx = lines[i] | |
| if lx.contains("leaq") { | |
| let adri = lx.index(lx.startIndex, offsetBy: 8 /*6*/) | |
| if let strpos = lx.range(of: "(")?.lowerBound { | |
| let adr = lx[adri..<strpos] | |
| if let adrint = Int(adr, radix: 16) { | |
| addr = adrint | |
| } | |
| } | |
| } else if ports == -1 && lx.contains("movb\t$") { | |
| if let adri = lx.range(of: "$")?.upperBound, let adrj = lx.range(of: ",")?.lowerBound { | |
| let adr = lx[adri..<adrj].dropFirst(2) | |
| if let adrint = Int(adr, radix: 16) { | |
| ports = adrint | |
| } | |
| } | |
| } else if lx.contains("jl") { | |
| let adr = lx.dropFirst(4) | |
| if let adrint = Int(adr, radix: 16) { | |
| ji = adrint | |
| print(" \(ji)") | |
| } | |
| } else if lx.contains("jmp") { | |
| let adr = lx.dropFirst(5).dropFirst(2) | |
| if let adrint = Int(adr, radix: 16) { | |
| ji = adrint + 0x1A | |
| } | |
| } | |
| i += 1 | |
| } | |
| addr += ji | |
| print(" \(framebufferName) (\(ports)) @ 0x\(String(addr, radix: 16))") | |
| do { | |
| let data = try Data(contentsOf: URL(fileURLWithPath: kextBinary)) | |
| for ip in 0..<ports { | |
| let saddr = addr + ip * 24 + 8 | |
| let xdata = data.subdata(in: saddr..<(saddr + 24)) | |
| let hexed = xdata.map { String(format: "%02hhx", $0) }.joined() | |
| let portstr = String(hexed[hexed.startIndex..<hexed.index(hexed.startIndex, offsetBy: 8)]) | |
| let port = portMapping[portstr] ?? "-" | |
| print(" \(hexed) \(port)") | |
| } | |
| } catch { | |
| print(" FAILED: \(error)") | |
| } | |
| } | |
| } | |
| } catch { | |
| print(error) | |
| } | |
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