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Autodictionary (#309)

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* lto module clean-up

* step 1/3

* step 1/3 completed

* if tmp is ever made non-static

* parts 2 and 3 - autodictionary is complete

* variable map_size support

* variable map size: changed overlooked functions

* remove debug for autodict

* 64 bit alignment of map size

* fix review comments

* force 64 bit alignment on both sides

* typo

* better map transfer, display snapshot in UI

* update readme
This commit is contained in:
van Hauser
2020-04-11 07:32:42 +02:00
committed by GitHub
parent 29ee3a1ffc
commit 68f269437d
7 changed files with 530 additions and 44 deletions
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27
src/afl-forkserver.c
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@ -367,24 +367,29 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
if ((status & FS_OPT_MAPSIZE) == FS_OPT_MAPSIZE) {
fsrv->map_size = FS_OPT_GET_MAPSIZE(status);
if (fsrv->map_size % 8)
if (fsrv->map_size % 8) // should not happen
fsrv->map_size = (((fsrv->map_size + 8) >> 3) << 3);
if (!be_quiet) ACTF("Target map size: %u", fsrv->map_size);
}
if (fsrv->function_ptr == NULL || fsrv->function_opt == NULL) {
// this is not afl-fuzz - we deny and return
status = (0xffffffff ^ (FS_OPT_ENABLED | FS_OPT_AUTODICT));
if (write(fsrv->fsrv_ctl_fd, &status, 4) != 4)
FATAL("Writing to forkserver failed.");
return;
if (fsrv->map_size > MAP_SIZE)
FATAL(
"Target's coverage map size of %u is larger than the one this "
"afl++ is compiled with (%u)\n",
fsrv->map_size, MAP_SIZE);
}
if ((status & FS_OPT_AUTODICT) == FS_OPT_AUTODICT) {
if (fsrv->function_ptr == NULL || fsrv->function_opt == NULL) {
// this is not afl-fuzz - we deny and return
status = (0xffffffff ^ (FS_OPT_ENABLED | FS_OPT_AUTODICT));
if (write(fsrv->fsrv_ctl_fd, &status, 4) != 4)
FATAL("Writing to forkserver failed.");
return;
}
if (!be_quiet) ACTF("Using AUTODICT feature.");
status = (FS_OPT_ENABLED | FS_OPT_AUTODICT);
if (write(fsrv->fsrv_ctl_fd, &status, 4) != 4)