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      1 # Copyright (c) 2019-2023 Yubico AB. All rights reserved.
      2 # Use of this source code is governed by a BSD-style
      3 # license that can be found in the LICENSE file.
      4 # SPDX-License-Identifier: BSD-2-Clause
      5 
      6 IMAGE		:= libfido2-coverage:1.16.0
      7 RUNNER		:= libfido2-runner
      8 PROFDATA	:= llvm-profdata
      9 COV		:= llvm-cov
     10 TARGETS		:= fuzz_assert fuzz_attobj fuzz_bio fuzz_cred fuzz_credman \
     11 		   fuzz_hid fuzz_largeblob fuzz_netlink fuzz_mgmt fuzz_pcsc
     12 CORPORA		:= $(foreach f,${TARGETS},${f}/corpus)
     13 MINIFY		:= $(foreach f,${TARGETS},/minify/${f}/corpus)
     14 REMOTE		:= gs://libfido2-corpus.clusterfuzz-external.appspot.com
     15 .DEFAULT_GOAL	:= all
     16 
     17 all: ${TARGETS}
     18 
     19 build:
     20 	docker build -t ${IMAGE} - < Dockerfile
     21 
     22 run: build
     23 	-docker run -it -d --name ${RUNNER} ${IMAGE}
     24 	docker start ${RUNNER}
     25 
     26 sync: run
     27 	tar Ccf .. - src fuzz | docker exec -i ${RUNNER} tar Cxf /libfido2 -
     28 	docker exec ${RUNNER} make -C /libfido2/build
     29 
     30 corpus: sync
     31 	docker exec ${RUNNER} /bin/sh -c 'cd /libfido2/fuzz && rm -rf ${TARGETS}'
     32 	docker exec ${RUNNER} tar Czxf /libfido2/fuzz /libfido2/fuzz/corpus.tgz
     33 
     34 ${TARGETS}: corpus sync
     35 	docker exec -e LLVM_PROFILE_FILE=/profraw/$@ ${RUNNER} \
     36 		/bin/sh -c 'rm -f /profraw/$@ && /libfido2/build/fuzz/$@ \
     37 		-runs=1 /libfido2/fuzz/$@'
     38 
     39 ${MINIFY}: /minify/%/corpus: %
     40 	docker exec ${RUNNER} /bin/sh -c 'rm -rf $@ && mkdir -p $@ && \
     41 		/libfido2/build/fuzz/$< -use_value_profile=1 -merge=1 $@ \
     42 		/libfido2/fuzz/$</corpus'
     43 
     44 corpus.tgz-: ${MINIFY}
     45 	docker exec -i ${RUNNER} tar Czcf /minify - ${TARGETS} > $@
     46 
     47 profdata: run
     48 	docker exec ${RUNNER} /bin/sh -c 'rm -f /$@ && ${PROFDATA} \
     49 		merge -sparse /profraw/* -o /$@'
     50 
     51 report.tgz: profdata
     52 	docker exec ${RUNNER} /bin/sh -c 'rm -rf /report && mkdir /report && \
     53 		${COV} show -format=html -tab-size=8 -instr-profile=/$< \
     54 		-ignore-filename-regex=pcsclite.h --show-branch-summary=false \
     55 		-output-dir=/report /libfido2/build/src/libfido2.so'
     56 	docker exec -i ${RUNNER} tar Czcf / - report > $@
     57 
     58 summary.txt: profdata
     59 	docker exec ${RUNNER} ${COV} report -use-color=false \
     60 		-ignore-filename-regex=pcsclite.h --show-branch-summary=false \
     61 		/libfido2/build/src/libfido2.so -instr-profile=/$< > $@
     62 
     63 functions.txt: profdata
     64 	docker exec ${RUNNER} /bin/sh -c '${COV} report -use-color=false \
     65 		-ignore-filename-regex=pcsclite.h -show-functions \
     66 		--show-branch-summary=false -instr-profile=/$< \
     67 		/libfido2/build/src/libfido2.so /libfido2/src/*.[ch]' > $@
     68 
     69 clean: run
     70 	docker exec ${RUNNER} /bin/sh -c 'rm -rf /profraw /profdata && \
     71 		make -C /libfido2/build clean'
     72 	-docker stop ${RUNNER}
     73 	rm -rf ${TARGETS}
     74 
     75 ${CORPORA}:
     76 	-mkdir -p $@
     77 	gsutil -q -m rsync -d -r ${REMOTE}/libFuzzer/libfido2_$(@:/corpus=) $@
     78 
     79 fetch-oss-fuzz: ${CORPORA}
     80 	find ${TARGETS} -type f -size +8192c -print0 | xargs -0 rm
     81 
     82 fetch-franz:
     83 	ssh franz tar -C corpus -cf- . | tar -xf-
     84 
     85 corpus.tgz:
     86 	tar zcf $@ ${TARGETS}
     87 
     88 .PHONY: build run sync corpus ${TARGETS} ${CORPORA}
     89 .PHONY: report.tgz summary.txt functions.txt
     90 .PHONY: fetch-oss-fuzz fetch-franz corpus.tgz
     91