Move FuzzerSetRand to separate file.
[openssl.git] / fuzz / asn1.c
1 /*
2  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the OpenSSL licenses, (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  * https://www.openssl.org/source/license.html
8  * or in the file LICENSE in the source distribution.
9  */
10
11 /*
12  * Fuzz ASN.1 parsing for various data structures. Specify which on the
13  * command line:
14  *
15  * asn1 <data structure>
16  */
17
18 #include <stdio.h>
19 #include <string.h>
20 #include <openssl/asn1.h>
21 #include <openssl/asn1t.h>
22 #include <openssl/dh.h>
23 #include <openssl/ec.h>
24 #include <openssl/ocsp.h>
25 #include <openssl/pkcs12.h>
26 #include <openssl/rsa.h>
27 #include <openssl/ts.h>
28 #include <openssl/x509v3.h>
29 #include <openssl/cms.h>
30 #include <openssl/err.h>
31 #include <openssl/rand.h>
32 #include "fuzzer.h"
33
34 #include "rand.inc"
35
36 static ASN1_ITEM_EXP *item_type[] = {
37     ASN1_ITEM_ref(ACCESS_DESCRIPTION),
38 #ifndef OPENSSL_NO_RFC3779
39     ASN1_ITEM_ref(ASIdentifierChoice),
40     ASN1_ITEM_ref(ASIdentifiers),
41     ASN1_ITEM_ref(ASIdOrRange),
42 #endif
43     ASN1_ITEM_ref(ASN1_ANY),
44     ASN1_ITEM_ref(ASN1_BIT_STRING),
45     ASN1_ITEM_ref(ASN1_BMPSTRING),
46     ASN1_ITEM_ref(ASN1_BOOLEAN),
47     ASN1_ITEM_ref(ASN1_ENUMERATED),
48     ASN1_ITEM_ref(ASN1_FBOOLEAN),
49     ASN1_ITEM_ref(ASN1_GENERALIZEDTIME),
50     ASN1_ITEM_ref(ASN1_GENERALSTRING),
51     ASN1_ITEM_ref(ASN1_IA5STRING),
52     ASN1_ITEM_ref(ASN1_INTEGER),
53     ASN1_ITEM_ref(ASN1_NULL),
54     ASN1_ITEM_ref(ASN1_OBJECT),
55     ASN1_ITEM_ref(ASN1_OCTET_STRING),
56     ASN1_ITEM_ref(ASN1_OCTET_STRING_NDEF),
57     ASN1_ITEM_ref(ASN1_PRINTABLE),
58     ASN1_ITEM_ref(ASN1_PRINTABLESTRING),
59     ASN1_ITEM_ref(ASN1_SEQUENCE),
60     ASN1_ITEM_ref(ASN1_SEQUENCE_ANY),
61     ASN1_ITEM_ref(ASN1_SET_ANY),
62     ASN1_ITEM_ref(ASN1_T61STRING),
63     ASN1_ITEM_ref(ASN1_TBOOLEAN),
64     ASN1_ITEM_ref(ASN1_TIME),
65     ASN1_ITEM_ref(ASN1_UNIVERSALSTRING),
66     ASN1_ITEM_ref(ASN1_UTCTIME),
67     ASN1_ITEM_ref(ASN1_UTF8STRING),
68     ASN1_ITEM_ref(ASN1_VISIBLESTRING),
69 #ifndef OPENSSL_NO_RFC3779
70     ASN1_ITEM_ref(ASRange),
71 #endif
72     ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
73     ASN1_ITEM_ref(AUTHORITY_KEYID),
74     ASN1_ITEM_ref(BASIC_CONSTRAINTS),
75     ASN1_ITEM_ref(BIGNUM),
76     ASN1_ITEM_ref(CBIGNUM),
77     ASN1_ITEM_ref(CERTIFICATEPOLICIES),
78 #ifndef OPENSSL_NO_CMS
79     ASN1_ITEM_ref(CMS_ContentInfo),
80     ASN1_ITEM_ref(CMS_ReceiptRequest),
81     ASN1_ITEM_ref(CRL_DIST_POINTS),
82 #endif
83 #ifndef OPENSSL_NO_DH
84     ASN1_ITEM_ref(DHparams),
85 #endif
86     ASN1_ITEM_ref(DIRECTORYSTRING),
87     ASN1_ITEM_ref(DISPLAYTEXT),
88     ASN1_ITEM_ref(DIST_POINT),
89     ASN1_ITEM_ref(DIST_POINT_NAME),
90 #ifndef OPENSSL_NO_EC
91     ASN1_ITEM_ref(ECPARAMETERS),
92     ASN1_ITEM_ref(ECPKPARAMETERS),
93 #endif
94     ASN1_ITEM_ref(EDIPARTYNAME),
95     ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
96     ASN1_ITEM_ref(GENERAL_NAME),
97     ASN1_ITEM_ref(GENERAL_NAMES),
98     ASN1_ITEM_ref(GENERAL_SUBTREE),
99 #ifndef OPENSSL_NO_RFC3779
100     ASN1_ITEM_ref(IPAddressChoice),
101     ASN1_ITEM_ref(IPAddressFamily),
102     ASN1_ITEM_ref(IPAddressOrRange),
103     ASN1_ITEM_ref(IPAddressRange),
104 #endif
105     ASN1_ITEM_ref(ISSUING_DIST_POINT),
106 #if OPENSSL_API_COMPAT < 0x10200000L
107     ASN1_ITEM_ref(LONG),
108 #endif
109     ASN1_ITEM_ref(NAME_CONSTRAINTS),
110     ASN1_ITEM_ref(NETSCAPE_CERT_SEQUENCE),
111     ASN1_ITEM_ref(NETSCAPE_SPKAC),
112     ASN1_ITEM_ref(NETSCAPE_SPKI),
113     ASN1_ITEM_ref(NOTICEREF),
114 #ifndef OPENSSL_NO_OCSP
115     ASN1_ITEM_ref(OCSP_BASICRESP),
116     ASN1_ITEM_ref(OCSP_CERTID),
117     ASN1_ITEM_ref(OCSP_CERTSTATUS),
118     ASN1_ITEM_ref(OCSP_CRLID),
119     ASN1_ITEM_ref(OCSP_ONEREQ),
120     ASN1_ITEM_ref(OCSP_REQINFO),
121     ASN1_ITEM_ref(OCSP_REQUEST),
122     ASN1_ITEM_ref(OCSP_RESPBYTES),
123     ASN1_ITEM_ref(OCSP_RESPDATA),
124     ASN1_ITEM_ref(OCSP_RESPID),
125     ASN1_ITEM_ref(OCSP_RESPONSE),
126     ASN1_ITEM_ref(OCSP_REVOKEDINFO),
127     ASN1_ITEM_ref(OCSP_SERVICELOC),
128     ASN1_ITEM_ref(OCSP_SIGNATURE),
129     ASN1_ITEM_ref(OCSP_SINGLERESP),
130 #endif
131     ASN1_ITEM_ref(OTHERNAME),
132     ASN1_ITEM_ref(PBE2PARAM),
133     ASN1_ITEM_ref(PBEPARAM),
134     ASN1_ITEM_ref(PBKDF2PARAM),
135     ASN1_ITEM_ref(PKCS12),
136     ASN1_ITEM_ref(PKCS12_AUTHSAFES),
137     ASN1_ITEM_ref(PKCS12_BAGS),
138     ASN1_ITEM_ref(PKCS12_MAC_DATA),
139     ASN1_ITEM_ref(PKCS12_SAFEBAG),
140     ASN1_ITEM_ref(PKCS12_SAFEBAGS),
141     ASN1_ITEM_ref(PKCS7),
142     ASN1_ITEM_ref(PKCS7_ATTR_SIGN),
143     ASN1_ITEM_ref(PKCS7_ATTR_VERIFY),
144     ASN1_ITEM_ref(PKCS7_DIGEST),
145     ASN1_ITEM_ref(PKCS7_ENC_CONTENT),
146     ASN1_ITEM_ref(PKCS7_ENCRYPT),
147     ASN1_ITEM_ref(PKCS7_ENVELOPE),
148     ASN1_ITEM_ref(PKCS7_ISSUER_AND_SERIAL),
149     ASN1_ITEM_ref(PKCS7_RECIP_INFO),
150     ASN1_ITEM_ref(PKCS7_SIGNED),
151     ASN1_ITEM_ref(PKCS7_SIGN_ENVELOPE),
152     ASN1_ITEM_ref(PKCS7_SIGNER_INFO),
153     ASN1_ITEM_ref(PKCS8_PRIV_KEY_INFO),
154     ASN1_ITEM_ref(PKEY_USAGE_PERIOD),
155     ASN1_ITEM_ref(POLICY_CONSTRAINTS),
156     ASN1_ITEM_ref(POLICYINFO),
157     ASN1_ITEM_ref(POLICY_MAPPING),
158     ASN1_ITEM_ref(POLICY_MAPPINGS),
159     ASN1_ITEM_ref(POLICYQUALINFO),
160     ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION),
161     ASN1_ITEM_ref(PROXY_POLICY),
162     ASN1_ITEM_ref(RSA_OAEP_PARAMS),
163     ASN1_ITEM_ref(RSAPrivateKey),
164     ASN1_ITEM_ref(RSA_PSS_PARAMS),
165     ASN1_ITEM_ref(RSAPublicKey),
166     ASN1_ITEM_ref(SXNET),
167     ASN1_ITEM_ref(SXNETID),
168     /*ASN1_ITEM_ref(TS_RESP),  want to do this, but type is hidden, however d2i exists... */
169     ASN1_ITEM_ref(USERNOTICE),
170     ASN1_ITEM_ref(X509),
171     ASN1_ITEM_ref(X509_ALGOR),
172     ASN1_ITEM_ref(X509_ALGORS),
173     ASN1_ITEM_ref(X509_ATTRIBUTE),
174     ASN1_ITEM_ref(X509_CERT_AUX),
175     ASN1_ITEM_ref(X509_CINF),
176     ASN1_ITEM_ref(X509_CRL),
177     ASN1_ITEM_ref(X509_CRL_INFO),
178     ASN1_ITEM_ref(X509_EXTENSION),
179     ASN1_ITEM_ref(X509_EXTENSIONS),
180     ASN1_ITEM_ref(X509_NAME),
181     ASN1_ITEM_ref(X509_NAME_ENTRY),
182     ASN1_ITEM_ref(X509_PUBKEY),
183     ASN1_ITEM_ref(X509_REQ),
184     ASN1_ITEM_ref(X509_REQ_INFO),
185     ASN1_ITEM_ref(X509_REVOKED),
186     ASN1_ITEM_ref(X509_SIG),
187     ASN1_ITEM_ref(X509_VAL),
188 #if OPENSSL_API_COMPAT < 0x10200000L
189     ASN1_ITEM_ref(ZLONG),
190 #endif
191     ASN1_ITEM_ref(INT32),
192     ASN1_ITEM_ref(ZINT32),
193     ASN1_ITEM_ref(UINT32),
194     ASN1_ITEM_ref(ZUINT32),
195     ASN1_ITEM_ref(INT64),
196     ASN1_ITEM_ref(ZINT64),
197     ASN1_ITEM_ref(UINT64),
198     ASN1_ITEM_ref(ZUINT64),
199     NULL
200 };
201
202 static ASN1_PCTX *pctx;
203
204 int FuzzerInitialize(int *argc, char ***argv)
205 {
206     pctx = ASN1_PCTX_new();
207     ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT |
208         ASN1_PCTX_FLAGS_SHOW_SEQUENCE | ASN1_PCTX_FLAGS_SHOW_SSOF |
209         ASN1_PCTX_FLAGS_SHOW_TYPE | ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME);
210     ASN1_PCTX_set_str_flags(pctx, ASN1_STRFLGS_UTF8_CONVERT |
211         ASN1_STRFLGS_SHOW_TYPE | ASN1_STRFLGS_DUMP_ALL);
212
213     OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
214     ERR_get_state();
215     CRYPTO_free_ex_index(0, -1);
216     FuzzerSetRand();
217
218     return 1;
219 }
220
221 int FuzzerTestOneInput(const uint8_t *buf, size_t len)
222 {
223     int n;
224
225
226     for (n = 0; item_type[n] != NULL; ++n) {
227         const uint8_t *b = buf;
228         unsigned char *der = NULL;
229         const ASN1_ITEM *i = ASN1_ITEM_ptr(item_type[n]);
230         ASN1_VALUE *o = ASN1_item_d2i(NULL, &b, len, i);
231
232         if (o != NULL) {
233             BIO *bio = BIO_new(BIO_s_null());
234             ASN1_item_print(bio, o, 4, i, pctx);
235             BIO_free(bio);
236
237             ASN1_item_i2d(o, &der, i);
238             OPENSSL_free(der);
239
240             ASN1_item_free(o, i);
241         }
242     }
243
244     ERR_clear_error();
245
246     return 0;
247 }
248
249 void FuzzerCleanup(void)
250 {
251     ASN1_PCTX_free(pctx);
252 }