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This commit is contained in:
vanhauser-thc
2023-02-04 15:39:03 +01:00
parent ec87abda93
commit 90f61552f7
3 changed files with 18 additions and 7 deletions
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9
custom_mutators/autotokens/TODO
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@ -1,5 +1,3 @@
cmplog: only add tokens that were found to fit?
create from thin air if no good seed after a cycle and dict large enough? create from thin air if no good seed after a cycle and dict large enough?
(static u32 no_of_struct_inputs;) (static u32 no_of_struct_inputs;)
@ -16,8 +14,9 @@ corpus analyse:
- libpcap - libpcap
min len, max len, % wenn 95/98/99/100 ascii min len, max len, % wenn 95/98/99/100 ascii
funktion und env für menge an mutationen
env für menge an per mutation run env für menge an per mutation run
only add inital dictionary, not furher finds, e.g. cmplog AFL_TXT_MAX_LEN 65535
AFL_TXT_MIN_LEN 16
AFL_TXT_MIN_PERCENT=99

12
custom_mutators/autotokens/autotokens.cpp
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@ -34,6 +34,9 @@ extern "C" {
#ifndef AUTOTOKENS_SPLICE_DISABLE #ifndef AUTOTOKENS_SPLICE_DISABLE
#define AUTOTOKENS_SPLICE_DISABLE 0 #define AUTOTOKENS_SPLICE_DISABLE 0
#endif #endif
#ifndef AFL_TXT_MAX_LEN
#define AFL_TXT_MAX_LEN 65535
#endif
#if AUTOTOKENS_SPLICE_MIN >= AUTOTOKENS_SIZE_MIN #if AUTOTOKENS_SPLICE_MIN >= AUTOTOKENS_SIZE_MIN
#error SPLICE_MIN must be lower than SIZE_MIN #error SPLICE_MIN must be lower than SIZE_MIN
@ -571,6 +574,15 @@ extern "C" unsigned char afl_custom_queue_get(void *data,
DEBUGF(stderr, "Too short (%lu) %s\n", len, filename); DEBUGF(stderr, "Too short (%lu) %s\n", len, filename);
return 1; return 1;
} else
if (len > AFL_TXT_MAX_LEN) {
fclose(fp);
file_mapping[fn] = structure; // NULL ptr so we don't read the file again
s = NULL;
DEBUGF(stderr, "Too long (%lu) %s\n", len, filename);
return 1;
} }
string input; string input;

4
include/config.h
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@ -489,12 +489,12 @@
/* Minimum length of a queue input to be evaluated for "is_ascii"? */ /* Minimum length of a queue input to be evaluated for "is_ascii"? */
#define AFL_TXT_MIN_LEN 12 #define AFL_TXT_MIN_LEN 16
/* What is the minimum percentage of ascii characters present to be classifed /* What is the minimum percentage of ascii characters present to be classifed
as "is_ascii"? */ as "is_ascii"? */
#define AFL_TXT_MIN_PERCENT 95 #define AFL_TXT_MIN_PERCENT 98
/* How often to perform ASCII mutations 0 = disable, 1-8 are good values */ /* How often to perform ASCII mutations 0 = disable, 1-8 are good values */