i_82 Lessica

Recap

As you may have known, we recently managed to bring multitask to LiveContainer. This originally came from FrontBoardAppLauncher which was reverse engineered of various Apple apps: ClarityBoard, SpringBoard, Xcode PreviewShell, etc. A quick recap of how we worked on it:

I began reverse engineering said apps to study how to use various Private API of FrontBoard, RunningBoardServices and UIKit, resulted in MySystemShell and FrontBoardAppLauncher
I found app could spawn multiple processes thanks to the writeup of NSExtension
We found we could extend memory limit by setting a hidden NSExtensionPointIdentifier

However, as more and more people get to try it, we were reported that physical keyboard input wouldn't work. (LiveContainer/LiveContainer#524)

~~If anyone could figure it out, we will forever owe you.~~

	// Allows disabling Same-Origin Policy on iOS WKWebView.
	// Tested on iOS 12.4.
	// Uses private API; obviously can't be used on app store.

	@import WebKit;
	@import ObjectiveC;

	void WKPreferencesSetWebSecurityEnabled(id, bool);

	@interface WDBFakeWebKitPointer: NSObject

	#include <IOKit/IOKitLib.h>
	#include <mach/mach.h>
	#include <stdio.h>
	#include <stdint.h>
	#include <stdlib.h>
	#include <ctype.h>

	void hexdump(void *ptr, int buflen) {
	unsigned char buf = (unsigned char)ptr;
	int i, j;

	import Cocoa

	class MyStackView: NSStackView {
	override func responds(to aSelector: Selector!) -> Bool {
	if aSelector == #selector(NSSplitViewController.toggleSidebar(_:)) {
	return false
	}
	return super.responds(to: aSelector)
	}

	Key Name Description
	======== ===========
	3GProximityCapability Whether the device has a 3G proximity sensor
	3GVeniceCapability Whether the device supports FaceTime over cellular
	720pPlaybackCapability Whether the device supports 720p video (identical to kMGQDeviceSupports720p)
	APNCapability
	ARM64ExecutionCapability Whether the device supports executing arm64 binaries
	ARMV6ExecutionCapability Whether the device supports executing armv6 binaries
	ARMV7ExecutionCapability Whether the device supports executing armv7 binaries
	ARMV7SExecutionCapability Whether the device supports executing armv7s binaries

	//
	// AKNativeAnisetteService.m
	// akd
	//
	// Created by Scott Knight on 5/10/19.
	// Copyright © 2019 Scott Knight. All rights reserved.
	//

	#import <AuthKit/AuthKit.h>
	#import "AKNativeAnisetteService.h"

	var SecTrustEvaluate_handle =
	Module.findExportByName('Security', 'SecTrustEvaluate');
	var SecTrustEvaluateWithError_handle =
	Module.findExportByName('Security', 'SecTrustEvaluateWithError');
	var SSL_CTX_set_custom_verify_handle =
	Module.findExportByName('libboringssl.dylib', 'SSL_CTX_set_custom_verify');
	var SSL_get_psk_identity_handle =
	Module.findExportByName('libboringssl.dylib', 'SSL_get_psk_identity');
	var boringssl_context_set_verify_mode_handle = Module.findExportByName(
	'libboringssl.dylib', 'boringssl_context_set_verify_mode');