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History

Damien Neil b0c26f1868 internal/impl: add message validator

This adds a experimental function to the internal/impl package which
validates a wire-format message against a message type. The validator
reports whether the message can be successfully unmarshaled, and whether
the result is initialized (all required fields are set). In some cases,
the validator returns ambiguous results when full validation would be
expensive.

The validator is unused outside of tests. In the future, it may be used
to permit lazy unmarshaling of some data. It is being added now for
testing; in particular, the wire fuzzer now checks the validator output
for consistency with the unmarshaler.

The validator adds a small amount of unused per-MessageType state. If
this becomes a concern, we could conditionalize it with a build tag.

Change-Id: I4216ef81d6a9ed975302eed189b02d08608858b4
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/212302
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>

2020-01-07 21:36:47 +00:00

jsonfuzz

internal/fuzztest: factor out common fuzzer tests

2019-12-20 22:08:10 +00:00

textfuzz

internal/fuzztest: factor out common fuzzer tests

2019-12-20 22:08:10 +00:00

wirefuzz

internal/impl: add message validator

2020-01-07 21:36:47 +00:00

README.md

internal/fuzztest: factor out common fuzzer tests

2019-12-20 22:08:10 +00:00

README.md

Fuzzing

Fuzzing support using go-fuzz.

Basic operation:

$ go install github.com/dvyukov/go-fuzz/go-fuzz github.com/dvyukov/go-fuzz/go-fuzz-build
$ cd internal/fuzz/{fuzzer}
$ GOFUZZ111MODULE=on go-fuzz-build .
$ go-fuzz

OSS-Fuzz

Fuzzers are automatically run by OSS-Fuzz.

The OSS-Fuzz configuration currently builds fuzzers in every directory under internal/fuzz. Only add fuzzers (not support packages) in this directory.

Fuzzing results are available at the OSS-Fuzz console, under golang-protobuf.