Skip to content

Commit

Permalink
add support for using MLC key
Browse files Browse the repository at this point in the history
  • Loading branch information
jan-hofmeier committed May 8, 2024
1 parent 802ed93 commit a67b88d
Show file tree
Hide file tree
Showing 3 changed files with 146 additions and 5 deletions.
2 changes: 1 addition & 1 deletion Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ CFLAGS := -g -std=c11 -Os \
-fomit-frame-pointer -fdata-sections -ffunction-sections \
$(ARCH) -nostartfiles

CFLAGS += $(INCLUDE) -D_GNU_SOURCE -DCAN_HAZ_IRQ -fno-builtin-printf -Wno-nonnull -Werror=implicit
CFLAGS += $(INCLUDE) -D_GNU_SOURCE -fno-builtin-printf -Wno-nonnull -Werror=implicit

CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions

Expand Down
135 changes: 135 additions & 0 deletions Makefile.mlckey
Original file line number Diff line number Diff line change
@@ -0,0 +1,135 @@
#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------

export TOPDIR ?= $(CURDIR)
export MAKEFILE_ROOT_DIR:=$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
include $(MAKEFILE_ROOT_DIR)/elf_rules

#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# DATA is a list of directories containing data files
# INCLUDES is a list of directories containing header files
# SPECS is the directory containing the important build and link files
#---------------------------------------------------------------------------------
export TARGET := wafel_sd_usb_mlckey
export BUILD ?= debug

R_SOURCES :=
SOURCES := source source/ios source/services source/wupserver source/latte

R_INCLUDES :=
INCLUDES := source

DATA :=

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH := -march=armv5te -mcpu=arm926ej-s -mthumb-interwork -mbig-endian -mfloat-abi=soft -fPIE -fno-jump-tables -export-dynamic -s -isystem $(STROOPWAFEL_ROOT)/wafel_core/include

CFLAGS := -g -std=c11 -Os \
-fomit-frame-pointer -fdata-sections -ffunction-sections \
$(ARCH) -nostartfiles

CFLAGS += $(INCLUDE) -D_GNU_SOURCE -fno-builtin-printf -Wno-nonnull -Werror=implicit -DUSE_MLC_KEY

CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions

ASFLAGS := -g $(ARCH)
LDFLAGS = -g --specs=$(MAKEFILE_ROOT_DIR)/ccd00.specs $(ARCH) -Wl,--gc-sections,-Map,$(TARGET).map \
-L$(DEVKITARM)/lib/gcc/arm-none-eabi/$(GCC_VERSION)/be -L$(DEVKITARM)/arm-none-eabi/lib/be \
-z max-page-size=4096 -nostartfiles

LIBS := -lnosys

#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS :=

#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------

export ROOTDIR := $(CURDIR)
export OUTPUT := $(CURDIR)/$(TARGET)

SOURCES := $(SOURCES) $(foreach dir,$(R_SOURCES), $(dir) $(filter %/, $(wildcard $(dir)/*/)))
INCLUDES := $(INCLUDES) $(foreach dir,$(R_INCLUDES), $(dir) $(filter %/, $(wildcard $(dir)/*/)))

export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
$(foreach dir,$(DATA),$(CURDIR)/$(dir))

export DEPSDIR := $(CURDIR)/$(BUILD)

CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.S)))
BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))

#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
export LD := $(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
export LD := $(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------

export OFILES := $(addsuffix .o,$(BINFILES)) \
$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.S=.o)

export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
-I$(CURDIR)/$(BUILD)

export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)

.PHONY: $(BUILD) clean all

#---------------------------------------------------------------------------------
all: $(BUILD)

$(BUILD):
@[ -d $@ ] || mkdir -p $@
@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
@mv $(OUTPUT).elf $(OUTPUT).ipx

#---------------------------------------------------------------------------------
clean:
@echo clean ...
@rm -fr $(BUILD) $(OUTPUT).elf $(OUTPUT)-strip.elf $(OUTPUT).ipx


#---------------------------------------------------------------------------------
else

DEPENDS := $(OFILES:.o=.d)

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
#$(OUTPUT)-strip.elf: $(OUTPUT).elf
# $(STRIP) $< -o $@

$(OUTPUT).elf: $(OFILES)


-include $(DEPENDS)


#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------
14 changes: 10 additions & 4 deletions source/main.c
Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,10 @@ const char* MODULE_NAME = "SDUSB";
#define SECTOR_SIZE 512
#define LOCAL_HEAP_ID 0xCAFE
#define DEVTYPE_USB 17
// hope that 0x11 stays constant for mlc
#define MLC_CRYPTO_HANDLE 0x11
// tells crypto to not do crypto (depends on stroopwafel patch)
#define NO_CRYPTO_HANDLE 0xDEADBEEF

#define SERVER_HANDLE_LEN 0xb5
#define SERVER_HANDLE_SZ (SERVER_HANDLE_LEN * sizeof(int))
Expand Down Expand Up @@ -179,11 +183,13 @@ void hook_register_sd(trampoline_state *state){


void crypto_hook(trampoline_state* state){
// hope that 0x11 stays constant for mlc
if(active && state->r[5] == sdusb_size && state->r[0] != 0x11){
if(active && state->r[5] == sdusb_size && state->r[0] != MLC_CRYPTO_HANDLE){
//debug_printf("SDUSB: cryptohook detected USB partition true lr: %p\n", state->lr);
// tells crypto to not do crypto (depends on stroopwafel patch)
state->r[0] = 0xDEADBEEF;
#ifdef USE_MLC_KEY
tate->r[0] = MLC_CRYPTO_HANDLE;
#else
state->r[0] = NO_CRYPTO_HANDLE;
#endif
}
//debug_printf("crypto_hook: r0: %p, r1: %p, r2: %p, r3: %p, r4: %p, r5: %p, r6: %p, r7: %p, r8: %p, r9: %p, r10: %p, r11: %p, r12: %p, lr: %p\n",
// state->r[0],state->r[1],state->r[2],state->r[3],state->r[4],state->r[5],state->r[6],state->r[7],state->r[8],state->r[9],state->r[10],state->r[11], state->r[12], state->lr);
Expand Down

0 comments on commit a67b88d

Please sign in to comment.