# (GNU) Makefile for Cryptech PKCS #11 implementation.
#
# Author: Rob Austein
# Copyright (c) 2015, SUNET
#
# Redistribution and use in source and binary forms, with or
# without modification, are permitted provided that the following
# conditions are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the
#    distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Whether to enable threading.  Main reason for being able to turn it
# off is that gdb on the Novena goes bananas when threading is enabled.

ifndef ENABLE_THREADS
  ENABLE_THREADS := yes
endif

LIBHAL_DIR   = ../libhal
LIBTFM_DIR   = ../thirdparty/libtfm
SQLITE3_DIR  = ../thirdparty/sqlite3

CFLAGS	:= -g3 -fPIC -Wall -std=c99 -I${LIBHAL_DIR} -I${SQLITE3_DIR}
SOFLAGS := -Wl,-Bsymbolic-functions -Wl,-Bsymbolic -Wl,-z,noexecstack
LIBS	:= ${LIBHAL_DIR}/libhal.a ${LIBTFM_DIR}/libtfm.a ${SQLITE3_DIR}/libsqlite3.a

ifeq "${ENABLE_THREADS}" "yes"
  CFLAGS += -pthread
else
  CFLAGS += -DUSE_PTHREADS=0
endif

ifndef OBJCOPY
  OBJCOPY := objcopy
endif

all: libpkcs11.so p11util

clean:
	rm -rf pkcs11.o pkcs11.so libpkcs11.so* p11util p11util.o schema.h attributes.h

distclean: clean
	rm -f TAGS

schema.h: schema.sql scripts/convert-schema.sed GNUmakefile
	sed -f scripts/convert-schema.sed <schema.sql >schema.h

attributes.h: attributes.yaml scripts/build-attributes GNUmakefile
	python scripts/build-attributes attributes.yaml attributes.h

pkcs11.o: pkcs11.c sql_common.h schema.h attributes.h
	${CC} ${CFLAGS} -c $<

pkcs11.so: pkcs11.o ${LIBS}
	${CC} ${CFLAGS} -shared -o $@ ${SOFLAGS} $^

libpkcs11.so: pkcs11.so
	${OBJCOPY} -w -G 'C_*' $< $@

p11util.o: p11util.c sql_common.h schema.h
	${CC} ${CFLAGS} -c $<

p11util: p11util.o ${LIBS}
	${CC} ${CFLAGS} -o $@ $^

tags: TAGS

TAGS: *.[ch]
	etags $^

# Kudge for testing, gussy this up if we decide to keep it

HSMBULLY := $(firstword $(wildcard $(addsuffix /hsmbully,$(subst :, ,.:${PATH}))))

ifneq "${HSMBULLY}" ""

HSMBULLY_OPTIONS := \
	--pin fnord --so-pin fnord --pkcs11lib $(abspath libpkcs11.so) \
	--verbose=9 --fast-and-frivolous --skip-fragmentation --skip-keysizing

export PKCS11_DATABASE=$(abspath .pkcs11.db)

SQLITE3_CMD := $(abspath ../sqlite3/build/sqlite3)

bully: all
	rm -f ${PKCS11_DATABASE} ${PKCS11_DATABASE}-journal
	(echo fnord; echo fnord) | sudo -E ./p11util --set-so-pin --set-user-pin --pin-from-stdin
	sudo -E ${HSMBULLY} ${HSMBULLY_OPTIONS}

endif