building p0sixspwn on Catalina

Finally got around to the writeup I promised on my Reddit post.

steps

This should work on any modern macOS with Xcode installed.

downloads

I was successful using these particular releases. Newer versions may work as well.

setup

Make a temporary prefix:

mkdir Root
root=$PWD/Root
PATH+=:$root/bin

Make the final output folder:

mkdir Final
final=$PWD/Final

build dependencies

For Autoconf, Automake, libtool, and CMake, unzip the archives and run these commands in the resulting folder.

./configure --prefix=$root
make
make install

For pkg-config:

./configure --with-internal-glib --prefix=$root
make
make install

OpenSSL:

./configure darwin64-x86_64-cc --prefix=$root
make
make install

libplist, libusbmuxd, and libimobiledevice:

./autogen.sh --prefix=$root
make
make install

libzip:

cmake -DCMAKE_INSTALL_PREFIX=$root .
make
make install

wxWidgets:

./configure --enable-monolithic --with-cocoa --enable-compat28 --prefix=$root
make
make install
mv $root/include/wx-3.1/wx $root/include
mv $root/lib/wx/include/osx_cocoa-unicode-3.1/wx/setup.h $root/include/wx

patch p0sixspwn build files

Unzip and cd to the p0sixspwn folder.
Delete the outdated include and staticlibs folders.

Open configure.ac in a text editor.
Remove all -arch i386 compiler flags.
Remove all hardcoded references to libraries in LIBDIR and LIBSDIR.
Remove -framework QuickTime.

fix missing symbols

Edit src/jailbreak.c.

Remove the AMDAddLogFileDescriptor() call.

Find the send_message() declaration and implement it with the following:

CFDataRef data=CFPropertyListCreateXMLData(NULL,plist);
uint32_t size=CFDataGetLength(data);
uint32_t sizeSwapped=swap32(size);
send(socket,&sizeSwapped,4,0);
send(socket,CFDataGetBytePtr(data),size,0);

Implement receive_message():

uint32_t sizeSwapped;
int sizeMessageSize=recv(socket,&sizeSwapped,4,0);
if(sizeMessageSize==4)
{
	uint32_t size=swap32(sizeSwapped);
	void* buffer=malloc(size);
	recv(socket,buffer,size,0);
	CFDataRef data=CFDataCreateWithBytesNoCopy(NULL,buffer,size,NULL);
	return CFPropertyListCreateFromXMLData(NULL,data,0,0);
}

(The above two functions are based on a reverse-engineered MobileDevice.framework from OS X Lion.)

Edit gui/JailbreakWorker.cpp.
Remove the userpref_remove_device_public_key() call.

fix window refresh

Edit gui/JailbreakMainWindow.cpp.

Add at the top:

void JailbreakMainWindow::windowRefreshHack(wxIdleEvent& event)
{
	Refresh();
}

Add to the end of JailbreakMainWindow::JailbreakMainWindow():
Connect(wxID_ANY,wxEVT_IDLE,wxIdleEventHandler(JailbreakMainWindow::windowRefreshHack));

Edit gui/JailbreakMainWindow.h.
Add void windowRefreshHack(wxIdleEvent& event); at the end of the public section.

build p0sixspwn

chmod +x autogen.sh
CFLAGS="-Wno-return-type" LDFLAGS="-F/Library/Apple/System/Library/PrivateFrameworks -L$root/lib -lwx_osx_cocoau-3.1 -limobiledevice -lplist" ./autogen.sh
make

make the standalone package

cp gui/pris0nbarake $final
cp -R payload $final
cp $root/lib/libwx_osx_cocoau-3.1.dylib $final
cp $root/lib/libimobiledevice.6.dylib $final
cp $root/lib/libssl.1.0.0.dylib $final
cp $root/lib/libcrypto.1.0.0.dylib $final
cp $root/lib/libusbmuxd.6.dylib $final
cp $root/lib/libplist.3.dylib $final

Create a launcher script in Final:

#!/bin/bash
cd "$(dirname "$0")"
export DYLD_LIBRARY_PATH="$PWD"
./pris0nbarake

The Root folder can now be safely deleted.

iOS 6.1.6 support

Unlike official builds, the repository was never updated to support iOS 6.1.6, but I found a workaround with the help of /u/DonRedditor and /u/D34DBre4kr. Use at your own risk.

disable version check

Change the verify_product() function in src/jailbreak.c to always return 0.

update untether payload

Fetch the latest deb from Saurik's Cydia repository. This supports iOS 6.1.6 and fixes 3G/iMessage issues.

Replace payload/common/install.deb and rebuild p0sixspwn.

update untether payload (old method)

Copy payload/common/install.deb from the p0sixspwn source. Download winocm's p0sixspwn_lite and copy the contents of p0sixspwn.tproj/Root/Library/Helpers/.

Run the following commands to swap new files into the package.

dpkg-deb -R install.deb Extracted
cp dirhelper Extracted/usr/libexec/
cp _.dylib untether Extracted/var/untether/
dpkg-deb -b Extracted/ Fixed.deb

green ball