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/*
* Copyright 2007-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* Test CMP DER parsing.
*/
#include <openssl/bio.h>
#include <openssl/cmp.h>
#include "../crypto/cmp/cmp_local.h"
#include <openssl/err.h>
#include "fuzzer.h"
#include "rand.inc"
int FuzzerInitialize(int *argc, char ***argv)
{
OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
ERR_clear_error();
CRYPTO_free_ex_index(0, -1);
FuzzerSetRand();
return 1;
}
static int num_responses;
static OSSL_CMP_MSG *transfer_cb(OSSL_CMP_CTX *ctx, const OSSL_CMP_MSG *req)
{
if (num_responses++ > 2)
return NULL; /* prevent loops due to repeated pollRep */
return OSSL_CMP_MSG_dup((OSSL_CMP_MSG *)
OSSL_CMP_CTX_get_transfer_cb_arg(ctx));
}
static int print_noop(const char *func, const char *file, int line,
OSSL_CMP_severity level, const char *msg)
{
return 1;
}
static int allow_unprotected(const OSSL_CMP_CTX *ctx, const OSSL_CMP_MSG *rep,
int invalid_protection, int expected_type)
{
return 1;
}
static void cmp_client_process_response(OSSL_CMP_CTX *ctx, OSSL_CMP_MSG *msg)
{
X509_NAME *name = X509_NAME_new();
ASN1_INTEGER *serial = ASN1_INTEGER_new();
ctx->unprotectedSend = 1; /* satisfy ossl_cmp_msg_protect() */
ctx->disableConfirm = 1; /* check just one response message */
ctx->popoMethod = OSSL_CRMF_POPO_NONE; /* satisfy ossl_cmp_certReq_new() */
ctx->oldCert = X509_new(); /* satisfy crm_new() and ossl_cmp_rr_new() */
if (!OSSL_CMP_CTX_set1_secretValue(ctx, (unsigned char *)"",
0) /* prevent too unspecific error */
|| ctx->oldCert == NULL
|| name == NULL || !X509_set_issuer_name(ctx->oldCert, name)
|| serial == NULL || !X509_set_serialNumber(ctx->oldCert, serial))
goto err;
(void)OSSL_CMP_CTX_set_transfer_cb(ctx, transfer_cb);
(void)OSSL_CMP_CTX_set_transfer_cb_arg(ctx, msg);
(void)OSSL_CMP_CTX_set_log_cb(ctx, print_noop);
num_responses = 0;
switch (msg->body != NULL ? msg->body->type : -1) {
case OSSL_CMP_PKIBODY_IP:
(void)OSSL_CMP_exec_IR_ses(ctx);
break;
case OSSL_CMP_PKIBODY_CP:
(void)OSSL_CMP_exec_CR_ses(ctx);
(void)OSSL_CMP_exec_P10CR_ses(ctx);
break;
case OSSL_CMP_PKIBODY_KUP:
(void)OSSL_CMP_exec_KUR_ses(ctx);
break;
case OSSL_CMP_PKIBODY_POLLREP:
ctx->status = OSSL_CMP_PKISTATUS_waiting;
(void)OSSL_CMP_try_certreq(ctx, OSSL_CMP_PKIBODY_CR, NULL, NULL);
break;
case OSSL_CMP_PKIBODY_RP:
(void)OSSL_CMP_exec_RR_ses(ctx);
break;
case OSSL_CMP_PKIBODY_GENP:
sk_OSSL_CMP_ITAV_pop_free(OSSL_CMP_exec_GENM_ses(ctx),
OSSL_CMP_ITAV_free);
break;
default:
(void)ossl_cmp_msg_check_update(ctx, msg, allow_unprotected, 0);
break;
}
err:
X509_NAME_free(name);
ASN1_INTEGER_free(serial);
}
static OSSL_CMP_PKISI *process_cert_request(OSSL_CMP_SRV_CTX *srv_ctx,
const OSSL_CMP_MSG *cert_req,
int certReqId,
const OSSL_CRMF_MSG *crm,
const X509_REQ *p10cr,
X509 **certOut,
STACK_OF(X509) **chainOut,
STACK_OF(X509) **caPubs)
{
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
return NULL;
}
static OSSL_CMP_PKISI *process_rr(OSSL_CMP_SRV_CTX *srv_ctx,
const OSSL_CMP_MSG *rr,
const X509_NAME *issuer,
const ASN1_INTEGER *serial)
{
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
return NULL;
}
static int process_genm(OSSL_CMP_SRV_CTX *srv_ctx,
const OSSL_CMP_MSG *genm,
const STACK_OF(OSSL_CMP_ITAV) *in,
STACK_OF(OSSL_CMP_ITAV) **out)
{
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
return 0;
}
static void process_error(OSSL_CMP_SRV_CTX *srv_ctx, const OSSL_CMP_MSG *error,
const OSSL_CMP_PKISI *statusInfo,
const ASN1_INTEGER *errorCode,
const OSSL_CMP_PKIFREETEXT *errorDetails)
{
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
}
static int process_certConf(OSSL_CMP_SRV_CTX *srv_ctx,
const OSSL_CMP_MSG *certConf, int certReqId,
const ASN1_OCTET_STRING *certHash,
const OSSL_CMP_PKISI *si)
{
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
return 0;
}
static int process_pollReq(OSSL_CMP_SRV_CTX *srv_ctx,
const OSSL_CMP_MSG *pollReq, int certReqId,
OSSL_CMP_MSG **certReq, int64_t *check_after)
{
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
return 0;
}
int FuzzerTestOneInput(const uint8_t *buf, size_t len)
{
OSSL_CMP_MSG *msg;
BIO *in;
if (len == 0)
return 0;
in = BIO_new(BIO_s_mem());
OPENSSL_assert((size_t)BIO_write(in, buf, len) == len);
msg = d2i_OSSL_CMP_MSG_bio(in, NULL);
if (msg != NULL) {
BIO *out = BIO_new(BIO_s_null());
OSSL_CMP_SRV_CTX *srv_ctx = OSSL_CMP_SRV_CTX_new(NULL, NULL);
OSSL_CMP_CTX *client_ctx = OSSL_CMP_CTX_new(NULL, NULL);
i2d_OSSL_CMP_MSG_bio(out, msg);
ASN1_item_print(out, (ASN1_VALUE *)msg, 4,
ASN1_ITEM_rptr(OSSL_CMP_MSG), NULL);
BIO_free(out);
if (client_ctx != NULL)
cmp_client_process_response(client_ctx, msg);
if (srv_ctx != NULL
&& OSSL_CMP_CTX_set_log_cb(OSSL_CMP_SRV_CTX_get0_cmp_ctx(srv_ctx),
print_noop)
&& OSSL_CMP_SRV_CTX_init(srv_ctx, NULL, process_cert_request,
process_rr, process_genm, process_error,
process_certConf, process_pollReq))
OSSL_CMP_MSG_free(OSSL_CMP_SRV_process_request(srv_ctx, msg));
OSSL_CMP_CTX_free(client_ctx);
OSSL_CMP_SRV_CTX_free(srv_ctx);
OSSL_CMP_MSG_free(msg);
}
BIO_free(in);
ERR_clear_error();
return 0;
}
void FuzzerCleanup(void)
{
}
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