# Use one of these commands to build the manifest for Bash:
#
# - make
# - make DEBUG=1
# - make SGX=1
# - make SGX=1 DEBUG=1
#
# Use `make clean` to remove Graphene-generated files.

# Relative path to Graphene root and key for enclave signing
GRAPHENEDIR ?= ../..
SGX_SIGNER_KEY ?= $(GRAPHENEDIR)/Pal/src/host/Linux-SGX/signer/enclave-key.pem

ifeq ($(DEBUG),1)
GRAPHENE_LOG_LEVEL = debug
else
GRAPHENE_LOG_LEVEL = error
endif

.PHONY: all
all: bash.manifest | pal_loader
ifeq ($(SGX),1)
all: bash.manifest.sgx bash.sig bash.token
endif

include ../../Scripts/Makefile.configs

# Generate manifest rules for Bash dependencies.
# We'll duplicate some Glibc libraries (which Graphene provides in a customized version), but
# there's no harm in this.
PROGRAMS = bash ls cat rm cp date
.INTERMEDIATE: trusted-libs
trusted-libs: ../common_tools/get_deps.sh
	../common_tools/get_deps.sh $(foreach exec,$(PROGRAMS),$(shell which $(exec))) > $@

bash.manifest: manifest.template trusted-libs
	(sed -e 's|$$(GRAPHENEDIR)|'"$(GRAPHENEDIR)"'|g' \
	     -e 's|$$(GRAPHENE_LOG_LEVEL)|'"$(GRAPHENE_LOG_LEVEL)"'|g' \
	     -e 's|$$(EXECDIR)|'"$(shell dirname $(shell which bash))"'|g' \
	     -e 's|$$(ARCH_LIBDIR)|'"$(ARCH_LIBDIR)"'|g' \
	     $<; \
	cat trusted-libs) > $@

# Generating the SGX-specific manifest (*.manifest.sgx), the enclave signature,
# and the token for enclave initialization.
bash.manifest.sgx: bash.manifest
	$(GRAPHENEDIR)/Pal/src/host/Linux-SGX/signer/pal-sgx-sign \
		-libpal $(GRAPHENEDIR)/Runtime/libpal-Linux-SGX.so \
		-key $(SGX_SIGNER_KEY) \
		-manifest bash.manifest -output $@

bash.sig: bash.manifest.sgx

bash.token: bash.sig
	$(GRAPHENEDIR)/Pal/src/host/Linux-SGX/signer/pal-sgx-get-token \
		-output bash.token -sig bash.sig

pal_loader:
	ln -s $(GRAPHENEDIR)/Runtime/pal_loader $@

.PHONY: regression
regression: all
	@mkdir -p scripts/testdir

	./pal_loader ./bash -c "ls" > OUTPUT
	@grep -q "Makefile" OUTPUT && echo "[ Success 1/6 ]"
	@rm OUTPUT

	./pal_loader ./bash -c "cd scripts && bash bash_test.sh 1" > OUTPUT
	@grep -q "hello 1" OUTPUT      && echo "[ Success 2/6 ]"
	@grep -q "createdfile" OUTPUT  && echo "[ Success 3/6 ]"
	@grep -q "somefile" OUTPUT     && echo "[ Success 4/6 ]"
	@grep -q "current date" OUTPUT && echo "[ Success 5/6 ]"
	@rm OUTPUT

	./pal_loader ./bash -c "cd scripts && bash bash_test.sh 3" > OUTPUT
	@grep -q "hello 3" OUTPUT      && echo "[ Success 6/6 ]"
	@rm OUTPUT

	@rm -rf scripts/testdir


.PHONY: clean
clean:
	$(RM) *.manifest *.manifest.sgx *.token *.sig trusted-libs pal_loader OUTPUT scripts/testdir/*

.PHONY: distclean
distclean: clean