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# Copyright (c) 2019-2022 Yubico AB. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# SPDX-License-Identifier: BSD-2-Clause
IMAGE := libfido2-coverage:1.12.2
RUNNER := libfido2-runner
PROFDATA := llvm-profdata
COV := llvm-cov
TARGETS := fuzz_assert fuzz_bio fuzz_cred fuzz_credman fuzz_hid \
fuzz_largeblob fuzz_netlink fuzz_mgmt fuzz_pcsc
CORPORA := $(foreach f,${TARGETS},${f}/corpus)
MINIFY := $(foreach f,${TARGETS},/minify/${f}/corpus)
REMOTE := gs://libfido2-corpus.clusterfuzz-external.appspot.com
.DEFAULT_GOAL := all
all: ${TARGETS}
build:
docker build -t ${IMAGE} - < Dockerfile
run: build
-docker run -it -d --name ${RUNNER} ${IMAGE}
docker start ${RUNNER}
sync: run
tar Ccf .. - src fuzz | docker exec -i ${RUNNER} tar Cxf /libfido2 -
docker exec ${RUNNER} make -C /libfido2/build
corpus: sync
docker exec ${RUNNER} /bin/sh -c 'cd /libfido2/fuzz && rm -rf ${TARGETS}'
docker exec ${RUNNER} tar Czxf /libfido2/fuzz /libfido2/fuzz/corpus.tgz
${TARGETS}: corpus sync
docker exec -e LLVM_PROFILE_FILE=/profraw/$@ ${RUNNER} \
/bin/sh -c 'rm -f /profraw/$@ && /libfido2/build/fuzz/$@ \
-runs=1 /libfido2/fuzz/$@'
${MINIFY}: /minify/%/corpus: %
docker exec ${RUNNER} /bin/sh -c 'rm -rf $@ && mkdir -p $@ && \
/libfido2/build/fuzz/$< -use_value_profile=1 -merge=1 $@ \
/libfido2/fuzz/$</corpus'
corpus.tgz-: ${MINIFY}
docker exec -i ${RUNNER} tar Czcf /minify - ${TARGETS} > $@
profdata: run
docker exec ${RUNNER} /bin/sh -c 'rm -f /$@ && ${PROFDATA} \
merge -sparse /profraw/* -o /$@'
report.tgz: profdata
docker exec ${RUNNER} /bin/sh -c 'rm -rf /report && mkdir /report && \
${COV} show -format=html -tab-size=8 -instr-profile=/$< \
-ignore-filename-regex=pcsclite.h --show-branch-summary=false \
-output-dir=/report /libfido2/build/src/libfido2.so'
docker exec -i ${RUNNER} tar Czcf / - report > $@
summary.txt: profdata
docker exec ${RUNNER} ${COV} report -use-color=false \
-ignore-filename-regex=pcsclite.h --show-branch-summary=false \
/libfido2/build/src/libfido2.so -instr-profile=/$< > $@
functions.txt: profdata
docker exec ${RUNNER} /bin/sh -c '${COV} report -use-color=false \
-ignore-filename-regex=pcsclite.h -show-functions \
--show-branch-summary=false -instr-profile=/$< \
/libfido2/build/src/libfido2.so /libfido2/src/*.[ch]' > $@
clean: run
docker exec ${RUNNER} /bin/sh -c 'rm -rf /profraw /profdata && \
make -C /libfido2/build clean'
-docker stop ${RUNNER}
rm -rf ${TARGETS}
${CORPORA}:
-mkdir -p $@
gsutil -q -m rsync -d -r ${REMOTE}/libFuzzer/libfido2_$(@:/corpus=) $@
fetch-oss-fuzz: ${CORPORA}
find ${TARGETS} -type f -size +8192c -print0 | xargs -0 rm
fetch-franz:
ssh franz tar -C corpus -cf- . | tar -xf-
corpus.tgz:
tar zcf $@ ${TARGETS}
.PHONY: build run sync corpus ${TARGETS} ${CORPORA}
.PHONY: report.tgz summary.txt functions.txt
.PHONY: fetch-oss-fuzz fetch-franz corpus.tgz
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