/*
- * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL licenses, (the "License");
+ * Licensed under the Apache License 2.0 (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
* asn1 <data structure>
*/
+/* We need to use some deprecated APIs */
+#define OPENSSL_SUPPRESS_DEPRECATED
+
#include <stdio.h>
#include <string.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
+#include <openssl/dh.h>
+#include <openssl/dsa.h>
#include <openssl/ec.h>
#include <openssl/ocsp.h>
#include <openssl/pkcs12.h>
+#include <openssl/rsa.h>
#include <openssl/ts.h>
#include <openssl/x509v3.h>
+#include <openssl/cms.h>
+#include <openssl/ess.h>
+#include <openssl/err.h>
+#include <openssl/rand.h>
+#include <openssl/bio.h>
+#include <openssl/evp.h>
+#include <openssl/ssl.h>
+#include <internal/nelem.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");
+#include "rand.inc"
- return 0;
+static ASN1_ITEM_EXP *item_type[] = {
+ ASN1_ITEM_ref(ACCESS_DESCRIPTION),
+#ifndef OPENSSL_NO_RFC3779
+ ASN1_ITEM_ref(ASIdentifierChoice),
+ ASN1_ITEM_ref(ASIdentifiers),
+ ASN1_ITEM_ref(ASIdOrRange),
+#endif
+ ASN1_ITEM_ref(ASN1_ANY),
+ ASN1_ITEM_ref(ASN1_BIT_STRING),
+ ASN1_ITEM_ref(ASN1_BMPSTRING),
+ ASN1_ITEM_ref(ASN1_BOOLEAN),
+ ASN1_ITEM_ref(ASN1_ENUMERATED),
+ ASN1_ITEM_ref(ASN1_FBOOLEAN),
+ ASN1_ITEM_ref(ASN1_GENERALIZEDTIME),
+ ASN1_ITEM_ref(ASN1_GENERALSTRING),
+ ASN1_ITEM_ref(ASN1_IA5STRING),
+ ASN1_ITEM_ref(ASN1_INTEGER),
+ ASN1_ITEM_ref(ASN1_NULL),
+ ASN1_ITEM_ref(ASN1_OBJECT),
+ ASN1_ITEM_ref(ASN1_OCTET_STRING),
+ ASN1_ITEM_ref(ASN1_OCTET_STRING_NDEF),
+ ASN1_ITEM_ref(ASN1_PRINTABLE),
+ ASN1_ITEM_ref(ASN1_PRINTABLESTRING),
+ ASN1_ITEM_ref(ASN1_SEQUENCE),
+ ASN1_ITEM_ref(ASN1_SEQUENCE_ANY),
+ ASN1_ITEM_ref(ASN1_SET_ANY),
+ ASN1_ITEM_ref(ASN1_T61STRING),
+ ASN1_ITEM_ref(ASN1_TBOOLEAN),
+ ASN1_ITEM_ref(ASN1_TIME),
+ ASN1_ITEM_ref(ASN1_UNIVERSALSTRING),
+ ASN1_ITEM_ref(ASN1_UTCTIME),
+ ASN1_ITEM_ref(ASN1_UTF8STRING),
+ ASN1_ITEM_ref(ASN1_VISIBLESTRING),
+#ifndef OPENSSL_NO_RFC3779
+ ASN1_ITEM_ref(ASRange),
+#endif
+ ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
+ ASN1_ITEM_ref(AUTHORITY_KEYID),
+ ASN1_ITEM_ref(BASIC_CONSTRAINTS),
+ ASN1_ITEM_ref(BIGNUM),
+ ASN1_ITEM_ref(CBIGNUM),
+ ASN1_ITEM_ref(CERTIFICATEPOLICIES),
+#ifndef OPENSSL_NO_CMS
+ ASN1_ITEM_ref(CMS_ContentInfo),
+ ASN1_ITEM_ref(CMS_ReceiptRequest),
+ ASN1_ITEM_ref(CRL_DIST_POINTS),
+#endif
+#ifndef OPENSSL_NO_DH
+ ASN1_ITEM_ref(DHparams),
+#endif
+ ASN1_ITEM_ref(DIRECTORYSTRING),
+ ASN1_ITEM_ref(DISPLAYTEXT),
+ ASN1_ITEM_ref(DIST_POINT),
+ ASN1_ITEM_ref(DIST_POINT_NAME),
+#ifndef OPENSSL_NO_EC
+ ASN1_ITEM_ref(ECPARAMETERS),
+ ASN1_ITEM_ref(ECPKPARAMETERS),
+#endif
+ ASN1_ITEM_ref(EDIPARTYNAME),
+ ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
+ ASN1_ITEM_ref(GENERAL_NAME),
+ ASN1_ITEM_ref(GENERAL_NAMES),
+ ASN1_ITEM_ref(GENERAL_SUBTREE),
+#ifndef OPENSSL_NO_RFC3779
+ ASN1_ITEM_ref(IPAddressChoice),
+ ASN1_ITEM_ref(IPAddressFamily),
+ ASN1_ITEM_ref(IPAddressOrRange),
+ ASN1_ITEM_ref(IPAddressRange),
+#endif
+ ASN1_ITEM_ref(ISSUING_DIST_POINT),
+#ifndef OPENSSL_NO_DEPRECATED_3_0
+ ASN1_ITEM_ref(LONG),
+#endif
+ ASN1_ITEM_ref(NAME_CONSTRAINTS),
+ ASN1_ITEM_ref(NETSCAPE_CERT_SEQUENCE),
+ ASN1_ITEM_ref(NETSCAPE_SPKAC),
+ ASN1_ITEM_ref(NETSCAPE_SPKI),
+ ASN1_ITEM_ref(NOTICEREF),
+#ifndef OPENSSL_NO_OCSP
+ ASN1_ITEM_ref(OCSP_BASICRESP),
+ ASN1_ITEM_ref(OCSP_CERTID),
+ ASN1_ITEM_ref(OCSP_CERTSTATUS),
+ ASN1_ITEM_ref(OCSP_CRLID),
+ ASN1_ITEM_ref(OCSP_ONEREQ),
+ ASN1_ITEM_ref(OCSP_REQINFO),
+ ASN1_ITEM_ref(OCSP_REQUEST),
+ ASN1_ITEM_ref(OCSP_RESPBYTES),
+ ASN1_ITEM_ref(OCSP_RESPDATA),
+ ASN1_ITEM_ref(OCSP_RESPID),
+ ASN1_ITEM_ref(OCSP_RESPONSE),
+ ASN1_ITEM_ref(OCSP_REVOKEDINFO),
+ ASN1_ITEM_ref(OCSP_SERVICELOC),
+ ASN1_ITEM_ref(OCSP_SIGNATURE),
+ ASN1_ITEM_ref(OCSP_SINGLERESP),
+#endif
+ ASN1_ITEM_ref(OTHERNAME),
+ ASN1_ITEM_ref(PBE2PARAM),
+ ASN1_ITEM_ref(PBEPARAM),
+ ASN1_ITEM_ref(PBKDF2PARAM),
+ ASN1_ITEM_ref(PKCS12),
+ ASN1_ITEM_ref(PKCS12_AUTHSAFES),
+ ASN1_ITEM_ref(PKCS12_BAGS),
+ ASN1_ITEM_ref(PKCS12_MAC_DATA),
+ ASN1_ITEM_ref(PKCS12_SAFEBAG),
+ ASN1_ITEM_ref(PKCS12_SAFEBAGS),
+ ASN1_ITEM_ref(PKCS7),
+ ASN1_ITEM_ref(PKCS7_ATTR_SIGN),
+ ASN1_ITEM_ref(PKCS7_ATTR_VERIFY),
+ ASN1_ITEM_ref(PKCS7_DIGEST),
+ ASN1_ITEM_ref(PKCS7_ENC_CONTENT),
+ ASN1_ITEM_ref(PKCS7_ENCRYPT),
+ ASN1_ITEM_ref(PKCS7_ENVELOPE),
+ ASN1_ITEM_ref(PKCS7_ISSUER_AND_SERIAL),
+ ASN1_ITEM_ref(PKCS7_RECIP_INFO),
+ ASN1_ITEM_ref(PKCS7_SIGNED),
+ ASN1_ITEM_ref(PKCS7_SIGN_ENVELOPE),
+ ASN1_ITEM_ref(PKCS7_SIGNER_INFO),
+ ASN1_ITEM_ref(PKCS8_PRIV_KEY_INFO),
+ ASN1_ITEM_ref(PKEY_USAGE_PERIOD),
+ ASN1_ITEM_ref(POLICY_CONSTRAINTS),
+ ASN1_ITEM_ref(POLICYINFO),
+ ASN1_ITEM_ref(POLICY_MAPPING),
+ ASN1_ITEM_ref(POLICY_MAPPINGS),
+ ASN1_ITEM_ref(POLICYQUALINFO),
+ ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION),
+ ASN1_ITEM_ref(PROXY_POLICY),
+ ASN1_ITEM_ref(RSA_OAEP_PARAMS),
+ ASN1_ITEM_ref(RSAPrivateKey),
+ ASN1_ITEM_ref(RSA_PSS_PARAMS),
+ ASN1_ITEM_ref(RSAPublicKey),
+ ASN1_ITEM_ref(SXNET),
+ ASN1_ITEM_ref(SXNETID),
+ ASN1_ITEM_ref(USERNOTICE),
+ ASN1_ITEM_ref(X509),
+ ASN1_ITEM_ref(X509_ALGOR),
+ ASN1_ITEM_ref(X509_ALGORS),
+ ASN1_ITEM_ref(X509_ATTRIBUTE),
+ ASN1_ITEM_ref(X509_CERT_AUX),
+ ASN1_ITEM_ref(X509_CINF),
+ ASN1_ITEM_ref(X509_CRL),
+ ASN1_ITEM_ref(X509_CRL_INFO),
+ ASN1_ITEM_ref(X509_EXTENSION),
+ ASN1_ITEM_ref(X509_EXTENSIONS),
+ ASN1_ITEM_ref(X509_NAME),
+ ASN1_ITEM_ref(X509_NAME_ENTRY),
+ ASN1_ITEM_ref(X509_PUBKEY),
+ ASN1_ITEM_ref(X509_REQ),
+ ASN1_ITEM_ref(X509_REQ_INFO),
+ ASN1_ITEM_ref(X509_REVOKED),
+ ASN1_ITEM_ref(X509_SIG),
+ ASN1_ITEM_ref(X509_VAL),
+#ifndef OPENSSL_NO_DEPRECATED_3_0
+ ASN1_ITEM_ref(ZLONG),
+#endif
+ ASN1_ITEM_ref(INT32),
+ ASN1_ITEM_ref(ZINT32),
+ ASN1_ITEM_ref(UINT32),
+ ASN1_ITEM_ref(ZUINT32),
+ ASN1_ITEM_ref(INT64),
+ ASN1_ITEM_ref(ZINT64),
+ ASN1_ITEM_ref(UINT64),
+ ASN1_ITEM_ref(ZUINT64),
+ NULL
+};
+
+static ASN1_PCTX *pctx;
+
+#define DO_TEST(TYPE, D2I, I2D, PRINT) { \
+ const unsigned char *p = buf; \
+ unsigned char *der = NULL; \
+ TYPE *type = D2I(NULL, &p, len); \
+ \
+ if (type != NULL) { \
+ int len2; \
+ BIO *bio = BIO_new(BIO_s_null()); \
+ \
+ PRINT(bio, type); \
+ BIO_free(bio); \
+ len2 = I2D(type, &der); \
+ if (len2 != 0) {} \
+ OPENSSL_free(der); \
+ TYPE ## _free(type); \
+ } \
}
-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);
+#define DO_TEST_PRINT_OFFSET(TYPE, D2I, I2D, PRINT) { \
+ const unsigned char *p = buf; \
+ unsigned char *der = NULL; \
+ TYPE *type = D2I(NULL, &p, len); \
+ \
+ if (type != NULL) { \
+ BIO *bio = BIO_new(BIO_s_null()); \
+ \
+ PRINT(bio, type, 0); \
+ BIO_free(bio); \
+ I2D(type, &der); \
+ OPENSSL_free(der); \
+ TYPE ## _free(type); \
+ } \
+}
+
+#define DO_TEST_PRINT_PCTX(TYPE, D2I, I2D, PRINT) { \
+ const unsigned char *p = buf; \
+ unsigned char *der = NULL; \
+ TYPE *type = D2I(NULL, &p, len); \
+ \
+ if (type != NULL) { \
+ BIO *bio = BIO_new(BIO_s_null()); \
+ \
+ PRINT(bio, type, 0, pctx); \
+ BIO_free(bio); \
+ I2D(type, &der); \
+ OPENSSL_free(der); \
+ TYPE ## _free(type); \
+ } \
+}
+
+
+#define DO_TEST_NO_PRINT(TYPE, D2I, I2D) { \
+ const unsigned char *p = buf; \
+ unsigned char *der = NULL; \
+ TYPE *type = D2I(NULL, &p, len); \
+ \
+ if (type != NULL) { \
+ BIO *bio = BIO_new(BIO_s_null()); \
+ \
+ BIO_free(bio); \
+ I2D(type, &der); \
+ OPENSSL_free(der); \
+ TYPE ## _free(type); \
+ } \
+}
+
+
+int FuzzerInitialize(int *argc, char ***argv)
+{
+ pctx = ASN1_PCTX_new();
+ ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT |
+ ASN1_PCTX_FLAGS_SHOW_SEQUENCE | ASN1_PCTX_FLAGS_SHOW_SSOF |
+ ASN1_PCTX_FLAGS_SHOW_TYPE | ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME);
+ ASN1_PCTX_set_str_flags(pctx, ASN1_STRFLGS_UTF8_CONVERT |
+ ASN1_STRFLGS_SHOW_TYPE | ASN1_STRFLGS_DUMP_ALL);
+
+ OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
+ OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL);
+ ERR_clear_error();
+ CRYPTO_free_ex_index(0, -1);
+ FuzzerSetRand();
+
+ return 1;
+}
+
+int FuzzerTestOneInput(const uint8_t *buf, size_t len)
+{
+ int n;
+
+
+ for (n = 0; item_type[n] != NULL; ++n) {
+ const uint8_t *b = buf;
+ unsigned char *der = NULL;
+ const ASN1_ITEM *i = ASN1_ITEM_ptr(item_type[n]);
+ ASN1_VALUE *o = ASN1_item_d2i(NULL, &b, len, i);
+
+ if (o != NULL) {
+ BIO *bio = BIO_new(BIO_s_null());
+
+ ASN1_item_print(bio, o, 4, i, pctx);
+ BIO_free(bio);
+ ASN1_item_i2d(o, &der, i);
+ OPENSSL_free(der);
+ ASN1_item_free(o, i);
+ }
+ }
+
+#ifndef OPENSSL_NO_TS
+ DO_TEST(TS_REQ, d2i_TS_REQ, i2d_TS_REQ, TS_REQ_print_bio);
+ DO_TEST(TS_MSG_IMPRINT, d2i_TS_MSG_IMPRINT, i2d_TS_MSG_IMPRINT, TS_MSG_IMPRINT_print_bio);
+ DO_TEST(TS_RESP, d2i_TS_RESP, i2d_TS_RESP, TS_RESP_print_bio);
+ DO_TEST(TS_STATUS_INFO, d2i_TS_STATUS_INFO, i2d_TS_STATUS_INFO, TS_STATUS_INFO_print_bio);
+ DO_TEST(TS_TST_INFO, d2i_TS_TST_INFO, i2d_TS_TST_INFO, TS_TST_INFO_print_bio);
+ DO_TEST_NO_PRINT(TS_ACCURACY, d2i_TS_ACCURACY, i2d_TS_ACCURACY);
+#endif
+ DO_TEST_NO_PRINT(ESS_ISSUER_SERIAL, d2i_ESS_ISSUER_SERIAL, i2d_ESS_ISSUER_SERIAL);
+ DO_TEST_NO_PRINT(ESS_CERT_ID, d2i_ESS_CERT_ID, i2d_ESS_CERT_ID);
+ DO_TEST_NO_PRINT(ESS_SIGNING_CERT, d2i_ESS_SIGNING_CERT, i2d_ESS_SIGNING_CERT);
+ DO_TEST_NO_PRINT(ESS_CERT_ID_V2, d2i_ESS_CERT_ID_V2, i2d_ESS_CERT_ID_V2);
+ DO_TEST_NO_PRINT(ESS_SIGNING_CERT_V2, d2i_ESS_SIGNING_CERT_V2, i2d_ESS_SIGNING_CERT_V2);
+#ifndef OPENSSL_NO_DH
+ DO_TEST_NO_PRINT(DH, d2i_DHparams, i2d_DHparams);
+ DO_TEST_NO_PRINT(DH, d2i_DHxparams, i2d_DHxparams);
+#endif
+#ifndef OPENSSL_NO_DSA
+ DO_TEST_NO_PRINT(DSA_SIG, d2i_DSA_SIG, i2d_DSA_SIG);
+ DO_TEST_NO_PRINT(DSA, d2i_DSAPrivateKey, i2d_DSAPrivateKey);
+ DO_TEST_NO_PRINT(DSA, d2i_DSAPublicKey, i2d_DSAPublicKey);
+ DO_TEST_NO_PRINT(DSA, d2i_DSAparams, i2d_DSAparams);
+#endif
+ DO_TEST_NO_PRINT(RSA, d2i_RSAPublicKey, i2d_RSAPublicKey);
+#ifndef OPENSSL_NO_EC
+ DO_TEST_PRINT_OFFSET(EC_GROUP, d2i_ECPKParameters, i2d_ECPKParameters, ECPKParameters_print);
+ DO_TEST_PRINT_OFFSET(EC_KEY, d2i_ECPrivateKey, i2d_ECPrivateKey, EC_KEY_print);
+ DO_TEST(EC_KEY, d2i_ECParameters, i2d_ECParameters, ECParameters_print);
+# ifndef OPENSSL_NO_DEPRECATED_3_0
+ DO_TEST_NO_PRINT(ECDSA_SIG, d2i_ECDSA_SIG, i2d_ECDSA_SIG);
+# endif
+#endif
+ DO_TEST_PRINT_PCTX(EVP_PKEY, d2i_AutoPrivateKey, i2d_PrivateKey, EVP_PKEY_print_private);
+ DO_TEST(SSL_SESSION, d2i_SSL_SESSION, i2d_SSL_SESSION, SSL_SESSION_print);
+
+ ERR_clear_error();
+
return 0;
}
+
+void FuzzerCleanup(void)
+{
+ ASN1_PCTX_free(pctx);
+}