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- /* Copyright (c) 2016-2019, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- #define SIGCOMMON_PRIVATE
- #include "core/or/or.h"
- #include "feature/dirparse/ns_parse.h"
- #include "feature/dirparse/sigcommon.h"
- #include "feature/dirparse/unparseable.h"
- #include "feature/nodelist/networkstatus.h"
- #include "lib/crypt_ops/crypto_ed25519.h"
- #include "feature/nodelist/networkstatus_st.h"
- #include "test/fuzz/fuzzing.h"
- static void
- mock_dump_desc__nodump(const char *desc, const char *type)
- {
- (void)desc;
- (void)type;
- }
- static int
- mock_router_produce_hash_final__nohash(char *digest,
- const char *start, size_t len,
- digest_algorithm_t alg)
- {
- (void)start;
- (void)len;
- /* we could look at start[..] */
- if (alg == DIGEST_SHA1)
- memset(digest, 0x01, 20);
- else
- memset(digest, 0x02, 32);
- return 0;
- }
- static int
- mock_signed_digest_equals__yes(const uint8_t *d1, const uint8_t *d2,
- size_t len)
- {
- (void) tor_memeq(d1, d2, len);
- return 1;
- }
- int
- fuzz_init(void)
- {
- disable_signature_checking();
- MOCK(dump_desc, mock_dump_desc__nodump);
- MOCK(router_compute_hash_final, mock_router_produce_hash_final__nohash);
- MOCK(signed_digest_equals, mock_signed_digest_equals__yes);
- ed25519_init();
- return 0;
- }
- int
- fuzz_cleanup(void)
- {
- return 0;
- }
- int
- fuzz_main(const uint8_t *data, size_t sz)
- {
- networkstatus_t *ns;
- char *str = tor_memdup_nulterm(data, sz);
- const char *eos = NULL;
- networkstatus_type_t tp = NS_TYPE_CONSENSUS;
- if (tor_memstr(data, MIN(sz, 1024), "tus vote"))
- tp = NS_TYPE_VOTE;
- const char *what = (tp == NS_TYPE_CONSENSUS) ? "consensus" : "vote";
- ns = networkstatus_parse_vote_from_string(str,
- &eos,
- tp);
- if (ns) {
- log_debug(LD_GENERAL, "Parsing as %s okay", what);
- networkstatus_vote_free(ns);
- } else {
- log_debug(LD_GENERAL, "Parsing as %s failed", what);
- }
- tor_free(str);
- return 0;
- }
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