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/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL licenses, (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* https://www.openssl.org/source/license.html
* or in the file LICENSE in the source distribution.
*/
/*
* Fuzz ASN.1 parsing for various data structures. Specify which on the
* command line:
*
* asn1 <data structure>
*/
#include <stdio.h>
#include <string.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/ec.h>
#include <openssl/ocsp.h>
#include <openssl/pkcs12.h>
#include <openssl/ts.h>
#include <openssl/x509v3.h>
#include "fuzzer.h"
static const ASN1_ITEM *item_type;
int LLVMFuzzerInitialize(int *argc, char ***argv) {
const char *cmd;
OPENSSL_assert(*argc > 1);
cmd = (*argv)[1];
(*argv)[1] = (*argv)[0];
++*argv;
--*argc;
// TODO: make this work like d2i_test.c does, once its decided what the
// common scheme is!
#define Y(t) if (!strcmp(cmd, #t)) item_type = ASN1_ITEM_rptr(t)
#define X(t) else Y(t)
Y(ASN1_SEQUENCE);
X(AUTHORITY_INFO_ACCESS);
X(BIGNUM);
X(ECPARAMETERS);
X(ECPKPARAMETERS);
X(GENERAL_NAME);
X(GENERAL_SUBTREE);
X(NAME_CONSTRAINTS);
X(OCSP_BASICRESP);
X(OCSP_RESPONSE);
X(PKCS12);
X(PKCS12_AUTHSAFES);
X(PKCS12_SAFEBAGS);
X(PKCS7);
X(PKCS7_ATTR_SIGN);
X(PKCS7_ATTR_VERIFY);
X(PKCS7_DIGEST);
X(PKCS7_ENC_CONTENT);
X(PKCS7_ENCRYPT);
X(PKCS7_ENVELOPE);
X(PKCS7_RECIP_INFO);
X(PKCS7_SIGN_ENVELOPE);
X(PKCS7_SIGNED);
X(PKCS7_SIGNER_INFO);
X(POLICY_CONSTRAINTS);
X(POLICY_MAPPINGS);
X(SXNET);
//X(TS_RESP); want to do this, but type is hidden, however d2i exists...
X(X509);
X(X509_CRL);
else
OPENSSL_assert(!"Bad type");
return 0;
}
int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) {
const uint8_t *b = buf;
ASN1_VALUE *o = ASN1_item_d2i(NULL, &b, len, item_type);
ASN1_item_free(o, item_type);
return 0;
}
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