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#
# arm64_sysregs_ios.py
# Brandon Azad
#
# Based on https://github.com/gdelugre/ida-arm-system-highlight by Guillaume Delugre.
#

import idautils
import idc

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import html
import os
import re

directory = os.fsencode('SysReg_xml_v86A-2020-03')

def output_reg(name, description, spec):
    assert(all(map(lambda x: type(x) == int, spec)))
    print("{:020b}    'S{}_{}_c{}_c{}_{}' : ( '{}', '{}' ),".format(
        (spec[0] << 16) + (spec[1] << 12) + (spec[2] << 8) + (spec[3] << 4) + (spec[4] << 0),

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#! /usr/bin/env python3
#
# sep_firmware_split.py
# Brandon Azad
#
# Split a decrypted Apple SEP firmware image into individual Mach-O files.
#
# iPhone11,8 17C5053a   https://twitter.com/s1guza/status/1203550760102969345
# iPhone11,8 17E255     https://twitter.com/s1guza/status/1244683851957522435
#

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device-tree:
    target-type (5): "D421"
    mlb-serial-number (32): "C07947707R3LTPJB"
    compatible (27): "D421AP\0iPhone12,3\0AppleARM\0"
    secure-root-prefix (3): "md"
    AAPL,phandle (4): 0x1
    platform-name (32): "t8030"
    device_type (8): "bootrom"
    region-info (32): "LL/A"
    regulatory-model-number (32): "A2160"

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#include <assert.h>
#include <mach/mach.h>
#include <stdbool.h>
#include <stdio.h>

// ---- mach_vm.h ---------------------------------------------------------------------------------

extern
kern_return_t mach_vm_read_overwrite
(

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// Brandon Azad (@_bazad)

#include <assert.h>
#include <errno.h>
#include <mach/mach.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

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#! /bin/bash
#
# build-xnu-4903.241.1.sh
# Brandon Azad
#
# A script showing how to build XNU version 4903.241.1 (which corresponds to
# macOS 10.14.3) on macOS High Sierra 10.14.6 with Xcode 9.4.1.
#
# Note: This process will OVERWRITE files in Xcode's MacOSX10.13.sdk. Make a
# backup of this directory first!

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//
// if_value.h
// Brandon Azad
//
// Public domain
//

#ifndef IF_VALUE

/*

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uint64_t
aarch64_page_table_lookup(uint64_t ttbr, uint64_t vaddr,
			  uint64_t *l1_tte_, uint64_t *l2_tte_, uint64_t *l3_tte_) {
	const uint64_t pg_bits = 14;
	const uint64_t l1_size = 3;
	const uint64_t l2_size = 11;
	const uint64_t l3_size = 11;
	const uint64_t tte_physaddr_mask = ((1uLL << 40) - 1) & ~((1 << pg_bits) - 1);
	uint64_t l1_index = (vaddr >> (l2_size + l3_size + pg_bits)) & ((1 << l1_size) - 1);
	uint64_t l2_index = (vaddr >> (l3_size + pg_bits)) & ((1 << l2_size) - 1);

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#! /bin/bash
#
# build-xnu-4903.221.2.sh
# Brandon Azad
#
# A script showing how to build XNU version 4903.221.2 (which corresponds to
# macOS 10.14.1) on macOS High Sierra 10.14.1 with Xcode 9.4.1.
#
# Note: This process will OVERWRITE files in Xcode's MacOSX10.13.sdk. Make a
# backup of this directory first!