diff options
Diffstat (limited to 'dbrandom.c')
| -rw-r--r-- | dbrandom.c | 32 |
1 files changed, 31 insertions, 1 deletions
@@ -27,7 +27,7 @@ #include "dbutil.h" #include "bignum.h" #include "dbrandom.h" - +#include "runopts.h" /* this is used to generate unique output from the same hashpool */ static uint32_t counter = 0; @@ -145,6 +145,12 @@ void addrandom(const unsigned char * buf, unsigned int len) { hash_state hs; +#ifdef DROPBEAR_FUZZ + if (fuzz.fuzzing || fuzz.recordf) { + return; + } +#endif + /* hash in the new seed data */ sha1_init(&hs); /* existing state (zeroes on startup) */ @@ -157,6 +163,11 @@ void addrandom(const unsigned char * buf, unsigned int len) static void write_urandom() { +#ifdef DROPBEAR_FUZZ + if (fuzz.fuzzing || fuzz.recordf) { + return; + } +#endif #if !DROPBEAR_USE_PRNGD /* This is opportunistic, don't worry about failure */ unsigned char buf[INIT_SEED_SIZE]; @@ -170,6 +181,18 @@ static void write_urandom() #endif } +#ifdef DROPBEAR_FUZZ +void fuzz_seed(void) { + hash_state hs; + sha1_init(&hs); + sha1_process(&hs, "fuzzfuzzfuzz", strlen("fuzzfuzzfuzz")); + sha1_done(&hs, hashpool); + + counter = 0; + donerandinit = 1; +} +#endif + /* Initialise the prng from /dev/urandom or prngd. This function can * be called multiple times */ void seedrandom() { @@ -180,8 +203,15 @@ void seedrandom() { struct timeval tv; clock_t clockval; +#ifdef DROPBEAR_FUZZ + if (fuzz.fuzzing || fuzz.recordf) { + return; + } +#endif + /* hash in the new seed data */ sha1_init(&hs); + /* existing state */ sha1_process(&hs, (void*)hashpool, sizeof(hashpool)); |