diff options
-rw-r--r-- | crypto/rand/md_rand.c | 4 | ||||
-rw-r--r-- | fuzz/README.md | 3 | ||||
-rw-r--r-- | fuzz/server.c | 8 |
3 files changed, 12 insertions, 3 deletions
diff --git a/crypto/rand/md_rand.c b/crypto/rand/md_rand.c index 85ce4e6..0cf6e90 100644 --- a/crypto/rand/md_rand.c +++ b/crypto/rand/md_rand.c @@ -33,7 +33,7 @@ # include <openssl/fips.h> #endif -#ifdef BN_DEBUG +#if defined(BN_DEBUG) || defined(FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION) # define PREDICT #endif @@ -307,7 +307,7 @@ static int rand_bytes(unsigned char *buf, int num, int pseudo) #ifdef PREDICT if (rand_predictable) { - static unsigned char val = 0; + unsigned char val = 0; for (i = 0; i < num; i++) buf[i] = val++; diff --git a/fuzz/README.md b/fuzz/README.md index c5a1ba9..d0c30f4 100644 --- a/fuzz/README.md +++ b/fuzz/README.md @@ -38,7 +38,8 @@ Configure for fuzzing: $ CC=clang ./config enable-fuzz-libfuzzer \ --with-fuzzer-include=../../svn-work/Fuzzer \ --with-fuzzer-lib=../../svn-work/Fuzzer/libFuzzer \ - -DPEDANTIC enable-asan enable-ubsan no-shared + -DPEDANTIC enable-asan enable-ubsan no-shared \ + -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION $ sudo apt-get install make $ LDCMD=clang++ make -j $ fuzz/helper.py $FUZZER diff --git a/fuzz/server.c b/fuzz/server.c index b8a3ac4..4f2c794 100644 --- a/fuzz/server.c +++ b/fuzz/server.c @@ -191,6 +191,10 @@ static const uint8_t kRSAPrivateKeyDER[] = { static SSL_CTX *ctx; +#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION +extern int rand_predictable; +#endif + int FuzzerInitialize(int *argc, char ***argv) { const uint8_t *bufp = kRSAPrivateKeyDER; @@ -214,6 +218,10 @@ int FuzzerInitialize(int *argc, char ***argv) OPENSSL_assert(ret == 1); X509_free(cert); +#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION + rand_predictable = 1; +#endif + return 1; } |