diff options
Diffstat (limited to 'util/guest-random.c')
| -rw-r--r-- | util/guest-random.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/util/guest-random.c b/util/guest-random.c index 9453968..086115b 100644 --- a/util/guest-random.c +++ b/util/guest-random.c @@ -14,6 +14,7 @@ #include "qapi/error.h" #include "qemu/guest-random.h" #include "crypto/random.h" +#include "sysemu/replay.h" static __thread GRand *thread_rand; @@ -44,13 +45,21 @@ static int glib_random_bytes(void *buf, size_t len) int qemu_guest_getrandom(void *buf, size_t len, Error **errp) { + int ret; + if (replay_mode == REPLAY_MODE_PLAY) { + return replay_read_random(buf, len); + } if (unlikely(deterministic)) { /* Deterministic implementation using Glib's Mersenne Twister. */ - return glib_random_bytes(buf, len); + ret = glib_random_bytes(buf, len); } else { /* Non-deterministic implementation using crypto routines. */ - return qcrypto_random_bytes(buf, len, errp); + ret = qcrypto_random_bytes(buf, len, errp); + } + if (replay_mode == REPLAY_MODE_RECORD) { + replay_save_random(ret, buf, len); } + return ret; } void qemu_guest_getrandom_nofail(void *buf, size_t len) |