GO ms0/ef0 support

README.md

@@ -1,14 +1,30 @@
+# Repo moved to [ChronoSwitch](https://github.com/PSP-Archive/Chronoswitch)
+
+
 # Chronoswitch Downgrader
 Chronoswitch is a downgrader for the Playstation Portable (PSP).
 
 ## Installation
 Download and extract the latest version from the releases on this github page. Copy the `PSP` folder from the extracted output to your memory stick. You will need the firmware update for version you wish to downgrade to. If you want to downgrade to 6.60, you will need the 6.60 official update. If you're downgrading a PSPgo, make sure you download the official firmware appropriate for that device.
 
-Copy the official firmware update to `PSP/GAME/UPDATE/EBOOT.PBP` on your memory stick. If you're using a PSPgo, make sure this copied to the internal storage instead.
+Copy the official firmware update to `PSP/GAME/UPDATE/EBOOT.PBP` on your memory stick. If you're using a PSPgo, you can use internal storage or the memory stick for the official firmware EBOOT
 
 The downgrader is "signed", and can be launched without having a custom firmware installed. Once you run the application, follow the on-screen instructions.
 
 ## Changelog
+### Version 7.6.1
+* Added more print statements for less common issues with parsing EBOOT.PBP or the buffer
+### Version 7.6
+* Changed Default color, makes it a bit easier to read.
+* Detect which OFW you have to make sure your flashing the proper model OFW. ( i.e You can only flash GO OFW on GO and vice versa )
+### Version 7.5
+* Updated Tools to encrypt EBOOT to be OS agnostic ( from Yoti's psp_pspident )
+* Bugfix: GO had issue running with just Infinity/OFW running.
+### Version 7.4
+* PSP GO cleanup
+* Detect if EBOOT.PBP is missing from `PSP/GAME/UPDATE/`
+### Version 7.3
+* PSP GO can boot from ms0/ef0
 ### Version 7.2
 * Replaced 'factory firmware limitation', which prevented certain PSPs from being downgradable at all or limited them from being downgraded to certain firmwares they theoretically support.
 * This fixes most cases where an IDXFFFFFFFF or CAAFFFFFCF7 error could appear.

src/Makefile.signed

@@ -1,25 +1,33 @@
+UNAME := $(shell uname)
 release: all
-	bin/prxEncrypter $(TARGET).prx
-	pack-pbp $(EXTRA_TARGETS) PARAM.SFO icon0.png NULL NULL NULL NULL data.psp NULL
-	rm -f data.psp
+ifeq ($(UNAME), Linux)
+	bin/psptools/pack_ms_game.py --vanity "$(PSP_EBOOT_TITLE)" EBOOT.PBP EBOOT.PBP
+else
+	bin\\psptools\\pack_ms_game.py --vanity "$(PSP_EBOOT_TITLE)" EBOOT.PBP EBOOT.PBP
+endif
+	unpack-pbp EBOOT.PBP
+	pack-pbp $(EXTRA_TARGETS) PARAM.SFO icon0.png NULL NULL NULL NULL DATA.PSP NULL
+	rm -f DATA.PSP
 	rm -f downgrade_ctrl.h
 	rm -f downgrade660_ctrl.h
+	@mkdir -p PSP/GAME/ChronoSwitch
+	@cp EBOOT.PBP PSP/GAME/ChronoSwitch/
 
 TARGET = downgrader
 OBJS = main.o kernel_exploit.o kernel_land.o rebootex.o utils.o extras.o extra_stubs.o libasm/libinfinityUser.o
 
-INCDIR = ../include
+INCDIR = include
 CFLAGS = -Os -G0 -Wall
 CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
 ASFLAGS = $(CFLAGS) -c
 
-LIBDIR = ../lib
+LIBDIR = lib
 LIBS = -lpsppower
 
 PSP_FW_VERSION = 271
 
 EXTRA_TARGETS = EBOOT.PBP
-PSP_EBOOT_TITLE = Chronoswitch Downgrader v7.2
+PSP_EBOOT_TITLE = Chronoswitch Downgrader v7.6.1
 
 BUILD_PRX = 1
 

src/bin/psptools/pack_btcnf.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+
+import argparse
+
+from psptool.pack import pack_btcnf
+from psptool.prx import encrypt
+
+parser = argparse.ArgumentParser(description="Infinity Boot Config Packer")
+parser.add_argument('input', type=argparse.FileType('rb'),
+                    help='The raw text file to pack')
+parser.add_argument('--vanity', type=str,
+                    help='Some vanity text in the executable header')
+parser.add_argument('output', type=str,
+                    help='The output to write the packed text')
+args = parser.parse_args()
+
+executable = args.input.read()
+executable = encrypt(pack_btcnf(executable,
+                              psptag=0x00000000), vanity=args.vanity)
+
+with open(args.output, 'wb') as f:
+    f.write(executable)

src/bin/psptools/pack_kernel_module.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+
+import argparse
+
+from psptool.pack import pack_prx
+from psptool.prx import encrypt
+
+parser = argparse.ArgumentParser(description="Infinity Kernel Module Packer")
+parser.add_argument('input', type=argparse.FileType('rb'),
+                    help='The raw kernel PRX to pack')
+parser.add_argument('--vanity', type=str,
+                    help='Some vanity text in the executable header')
+parser.add_argument('output', type=str,
+                    help='The output to write the packed PRX')
+args = parser.parse_args()
+
+executable = args.input.read()
+executable = encrypt(pack_prx(executable, is_pbp=False,
+                              psptag=lambda x: 0x00000000), vanity=args.vanity)
+
+with open(args.output, 'wb') as f:
+    f.write(executable)

src/bin/psptools/pack_ms_game.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+
+import argparse
+
+from psptool.pbp import is_pbp, PBP
+from psptool.pack import pack_prx
+from psptool.prx import encrypt
+
+parser = argparse.ArgumentParser(description="Infinity Game Packer")
+parser.add_argument('input', type=argparse.FileType('rb'),
+                    help='The raw PBP to pack')
+parser.add_argument('--vanity', type=str,
+                    help='Some vanity text in the executable header')
+parser.add_argument('output', type=str,
+                    help='The output to write the packed PBP')
+args = parser.parse_args()
+
+executable = args.input.read()
+
+if not is_pbp(executable):
+    raise ValueError("not a PBP")
+
+# Although there are several tags for MS demos, 0x0C000000 is the most
+# portable as it exists in every firmware
+pbp = PBP(executable)
+pbp.prx = encrypt(pack_prx(pbp.prx, is_pbp=True,
+                           psptag=lambda x: 0x0C000000), vanity=args.vanity)
+
+with open(args.output, 'wb') as f:
+    f.write(pbp.pack())

src/bin/psptools/pack_updater.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+
+import argparse
+
+from psptool.pbp import is_pbp, PBP
+from psptool.pack import pack_prx
+from psptool.prx import encrypt
+
+parser = argparse.ArgumentParser(description="Infinity Updater Packer")
+parser.add_argument('input', type=argparse.FileType('rb'),
+                    help='The raw PBP to pack')
+parser.add_argument('--vanity', type=str,
+                    help='Some vanity text in the executable header')
+parser.add_argument('output', type=str,
+                    help='The output to write the packed PBP')
+args = parser.parse_args()
+
+executable = args.input.read()
+
+if not is_pbp(executable):
+    raise ValueError("not a PBP")
+
+pbp = PBP(executable)
+pbp.prx = encrypt(pack_prx(pbp.prx, is_pbp=True,
+                           psptag=lambda x: 0x0B000000), vanity=args.vanity)
+
+with open(args.output, 'wb') as f:
+    f.write(pbp.pack())

src/bin/psptools/pack_user_fw_module.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+
+import argparse
+
+from psptool.pack import pack_prx
+from psptool.prx import encrypt
+
+parser = argparse.ArgumentParser(
+    description="Infinity User Firmware Module Packer")
+parser.add_argument('input', type=argparse.FileType('rb'),
+                    help='The raw user PRX to pack')
+parser.add_argument('--id', type=str, help='The btcnf id to set')
+parser.add_argument('output', type=str,
+                    help='The output to write the packed PRX')
+args = parser.parse_args()
+
+executable = args.input.read()
+executable = encrypt(pack_prx(executable, is_pbp=False,
+                              psptag=lambda x: 0x457B8AF0), id=bytes.fromhex(args.id))
+
+with open(args.output, 'wb') as f:
+    f.write(executable)

src/bin/psptools/psptool/.gitignore

@@ -0,0 +1 @@
+__pycache__