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tests: New style fuzzing tool for DPP URI parsing

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Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2020-04-04 20:07:38 +03:00
parent 41a1032449
commit af23f3a849
5 changed files with 87 additions and 0 deletions
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33
tests/fuzzing/dpp-uri/Makefile Normal file
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all: dpp-uri
include ../rules.include
CFLAGS += -DCONFIG_DPP
CFLAGS += -DCONFIG_DPP2
CFLAGS += -DCONFIG_SHA256
CFLAGS += -DCONFIG_SHA384
CFLAGS += -DCONFIG_SHA512
CFLAGS += -DCONFIG_ECC
CFLAGS += -DCONFIG_OPENSSL_CMAC
LIBS += $(SRC)/common/libcommon.a
LIBS += $(SRC)/utils/libutils.a
OBJS += $(SRC)/crypto/crypto_openssl.o
LIBS += -lcrypto
OBJS += $(SRC)/crypto/aes-ctr.o
OBJS += $(SRC)/crypto/aes-siv.o
OBJS += $(SRC)/crypto/sha256-kdf.o
OBJS += $(SRC)/crypto/sha384-kdf.o
OBJS += $(SRC)/crypto/sha512-kdf.o
OBJS += $(SRC)/tls/asn1.o
OBJS += $(SRC)/common/dpp.o
dpp-uri: dpp-uri.o $(OBJS) $(LIBS)
$(LDO) $(LDFLAGS) -o $@ $^ $(LIBS)
clean:
$(MAKE) -C $(SRC) clean
rm -f dpp-uri *~ *.o *.d ../*~ ../*.o ../*.d
-include $(OBJS:%.o=%.d)

1
tests/fuzzing/dpp-uri/corpus/1.dat Normal file
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DPP:K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADM2206avxHJaHXgLMkq/24e0rsrfMP9K1Tm8gx+ovP0I=;;

1
tests/fuzzing/dpp-uri/corpus/2.dat Normal file
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DPP:C:81/1,115/36;K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADM2206avxHJaHXgLMkq/24e0rsrfMP9K1Tm8gx+ovP0I=;;

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tests/fuzzing/dpp-uri/corpus/3.dat Normal file
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DPP:I:SN=4774LH2b4044;M:010203040506;C:81/1,115/36;K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADM2206avxHJaHXgLMkq/24e0rsrfMP9K1Tm8gx+ovP0I=;;

51
tests/fuzzing/dpp-uri/dpp-uri.c Normal file
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/*
* DPP URI fuzzer
* Copyright (c) 2020, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "utils/includes.h"
#include "utils/common.h"
#include "common/dpp.h"
#include "../fuzzer-common.h"
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
struct dpp_global *dpp;
struct dpp_global_config config;
struct dpp_bootstrap_info *bi;
char *uri;
char buf[1000];
int ret = -1;
wpa_fuzzer_set_debug_level();
if (os_program_init())
return 0;
uri = os_malloc(size + 1);
if (!uri)
goto out;
os_memcpy(uri, data, size);
uri[size] = '\0';
os_memset(&config, 0, sizeof(config));
dpp = dpp_global_init(&config);
if (!dpp)
goto out;
bi = dpp_add_qr_code(dpp, uri);
if (bi && dpp_bootstrap_info(dpp, bi->id, buf, sizeof(buf)) > 0)
wpa_printf(MSG_DEBUG, "DPP: %s", buf);
dpp_global_deinit(dpp);
ret = 0;
out:
os_free(uri);
os_program_deinit();
return ret;
}