Add a minimal msgpack serialiser for ccf

.github/workflows/long-test.yml

@@ -180,17 +180,25 @@ jobs:
           cd build
           ./tests.sh --output-on-failure --timeout 1600 -LE "benchmark"
 
-      - name: "Run CBOR fuzz test"
+      - name: "Run fuzz tests"
         run: |
           set -o pipefail
           set -ex
           mkdir -p build_fuzz
           cd build_fuzz
           rm -f CMakeCache.txt
           cmake -GNinja -DFUZZING=ON -DSAN=ON -DUSE_SNMALLOC=OFF ..
-          ninja cbor_fuzz_test
-          mkdir -p /tmp/cbor_fuzz_live
-          ./cbor_fuzz_test /tmp/cbor_fuzz_live ../src/crypto/test/cbor_fuzz_corpus -max_total_time=60
+          ninja cbor_fuzz_test msgpack_fuzz_test
+          mkdir -p fuzz-live/cbor fuzz-live/msgpack fuzz-artifacts/cbor fuzz-artifacts/msgpack
+          ./cbor_fuzz_test fuzz-live/cbor ../src/crypto/test/cbor_fuzz_corpus \
+            -max_total_time=60 \
+            -artifact_prefix="$PWD/fuzz-artifacts/cbor/"
+          ./msgpack_fuzz_test fuzz-live/msgpack ../src/msgpack/test/msgpack_fuzz_corpus \
+            -max_total_time=60 \
+            -max_len=4096 \
+            -timeout=2 \
+            -rss_limit_mb=1024 \
+            -artifact_prefix="$PWD/fuzz-artifacts/msgpack/"
 
       - name: "Upload logs"
         if: success() || failure()
@@ -204,6 +212,7 @@ jobs:
             build/workspace/*/*.ledger/*
             build/workspace/*/stack_trace
             build/workspace/**/openapi_coverage.json
+            build_fuzz/fuzz-artifacts/**
           if-no-files-found: ignore
 
   # All e2e tests in release mode (same as release build).

CMakeLists.txt

@@ -746,6 +746,18 @@ if(BUILD_TESTS)
       target_link_libraries(cbor_fuzz_test PRIVATE evercbor)
     endif()
 
+    add_unit_test(
+      msgpack_test
+      ${CMAKE_CURRENT_SOURCE_DIR}/src/msgpack/test/msgpack_unit.cpp
+    )
+
+    if(FUZZING)
+      add_fuzz_test(
+        msgpack_fuzz_test
+        ${CMAKE_CURRENT_SOURCE_DIR}/src/msgpack/test/msgpack_fuzz.cpp
+      )
+    endif()
+
     add_unit_test(
       sharing_test
       ${CMAKE_CURRENT_SOURCE_DIR}/src/crypto/test/secret_sharing.cpp
@@ -1056,6 +1068,7 @@ if(BUILD_TESTS)
     add_picobench(map_bench SRCS src/ds/test/map_bench.cpp)
     add_picobench(logger_bench SRCS src/ds/test/logger_bench.cpp)
     add_picobench(json_bench SRCS src/ds/test/json_bench.cpp)
+    add_picobench(msgpack_bench SRCS src/msgpack/test/msgpack_bench.cpp)
     add_picobench(ring_buffer_bench SRCS src/ds/test/ring_buffer_bench.cpp)
     add_picobench(ledger_bench SRCS src/host/test/ledger_bench.cpp)
     add_picobench(crypto_bench SRCS src/crypto/test/bench.cpp LINK_LIBS)