2026-09-11 20:19:40 +02:00
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# Host-side tests for obu-firmware. See README.md: needs gcc and make on PATH (MSYS2 UCRT64), and
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# asn1tools under `py -3.11` for the replay check.
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#
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# make build and run everything: chain, replay, fuzz
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# make chain | replay | fuzz one of them
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# make fuzz FUZZ_ITER=50000000 FUZZ_SEED=7 a longer or different fuzz run
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# make clean remove build/
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#
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# The firmware sources are compiled straight from ../../main, never copied.
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CC = gcc
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PYTHON = python
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PYTHON_ASN1 = py -3.11
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FW = ../../main
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BUILD = build
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EXE = $(if $(filter Windows_NT,$(OS)),.exe,)
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2026-09-14 13:38:38 +02:00
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# Captures live in capture/recordings/ since 2026-09-14; older ones are still in the
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# receiver checkout beside this repo.
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RECORDINGS = $(wildcard ../../../capture/recordings/*.pcap ../../../its-g5-receiver-firmware/recordings/*.pcap)
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2026-09-11 20:19:40 +02:00
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FUZZ_ITER = 2000000
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FUZZ_SEED = 1
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# -Werror: these sources must stay warning-free on the host compiler too.
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# UBSan in trap mode needs no runtime library, so it works on MinGW; a trap shows up as a crash.
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CFLAGS = -std=c11 -O2 -g -Wall -Wextra -Wpedantic -Werror -I$(FW) \
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-fsanitize=undefined -fsanitize-undefined-trap-on-error
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FW_SRCS = $(FW)/geonet.c $(FW)/dot11p.c $(FW)/gn_unwrap.c
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DEPS = test_util.c test_util.h $(FW_SRCS) $(wildcard $(FW)/*.h)
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.PHONY: all check chain replay fuzz clean
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all: check
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check: chain replay fuzz
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$(BUILD):
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mkdir -p $@
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$(BUILD)/%$(EXE): %.c $(DEPS) | $(BUILD)
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$(CC) $(CFLAGS) -o $@ $< test_util.c $(FW_SRCS)
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# The pcap goes through pcap_gn_tally.py as a second, independent parser of the same frames.
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chain: $(BUILD)/test_chain$(EXE)
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$(BUILD)/test_chain$(EXE) $(BUILD)/test_chain.pcap
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$(PYTHON) ../pcap_gn_tally.py $(BUILD)/test_chain.pcap
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replay: $(BUILD)/test_replay$(EXE)
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ifeq ($(RECORDINGS),)
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@echo "replay: no recordings in ../../../its-g5-receiver-firmware/recordings, skipped"
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else
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$(BUILD)/test_replay$(EXE) $(BUILD)/replay.tsv $(RECORDINGS)
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$(PYTHON_ASN1) check_replay.py $(BUILD)/replay.tsv $(RECORDINGS)
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endif
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fuzz: $(BUILD)/fuzz_gn_unwrap$(EXE)
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$(BUILD)/fuzz_gn_unwrap$(EXE) $(FUZZ_ITER) $(FUZZ_SEED) $(RECORDINGS)
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clean:
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rm -rf $(BUILD)
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