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/*
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# Copyright 2017 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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################################################################################
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*/
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#include <assert.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <gnutls/gnutls.h>
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#include "certs.h"
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#include "mem.h"
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#include "fuzzer.h"
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int LLVMFuzzerTestOneInput(const uint8_t * data, size_t size)
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{
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int res;
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gnutls_datum_t rsa_cert, rsa_key;
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gnutls_datum_t ecdsa_cert, ecdsa_key;
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gnutls_datum_t ed25519_cert, ed25519_key;
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gnutls_session_t session;
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gnutls_certificate_credentials_t xcred;
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struct mem_st memdata;
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res = gnutls_init(&session, GNUTLS_SERVER);
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assert(res >= 0);
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res = gnutls_certificate_allocate_credentials(&xcred);
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assert(res >= 0);
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rsa_cert.data = (unsigned char *)kRSACertificateDER;
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rsa_cert.size = sizeof(kRSACertificateDER);
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rsa_key.data = (unsigned char *)kRSAPrivateKeyDER;
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rsa_key.size = sizeof(kRSAPrivateKeyDER);
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ecdsa_cert.data = (unsigned char *)kECDSACertificateDER;
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ecdsa_cert.size = sizeof(kECDSACertificateDER);
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ecdsa_key.data = (unsigned char *)kECDSAPrivateKeyDER;
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ecdsa_key.size = sizeof(kECDSAPrivateKeyDER);
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ed25519_cert.data = (unsigned char *)kEd25519CertificateDER;
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ed25519_cert.size = sizeof(kEd25519CertificateDER);
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ed25519_key.data = (unsigned char *)kEd25519PrivateKeyDER;
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ed25519_key.size = sizeof(kEd25519PrivateKeyDER);
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res =
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gnutls_certificate_set_x509_key_mem(xcred, &rsa_cert, &rsa_key,
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GNUTLS_X509_FMT_DER);
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assert(res >= 0);
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res =
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gnutls_certificate_set_x509_key_mem(xcred, &ecdsa_cert, &ecdsa_key,
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GNUTLS_X509_FMT_DER);
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assert(res >= 0);
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res =
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gnutls_certificate_set_x509_key_mem(xcred, &ed25519_cert, &ed25519_key,
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GNUTLS_X509_FMT_DER);
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assert(res >= 0);
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gnutls_certificate_set_known_dh_params(xcred, GNUTLS_SEC_PARAM_MEDIUM);
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res = gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
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assert(res >= 0);
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res = gnutls_set_default_priority(session);
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assert(res >= 0);
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memdata.data = data;
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memdata.size = size;
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gnutls_transport_set_push_function(session, mem_push);
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gnutls_transport_set_pull_function(session, mem_pull);
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gnutls_transport_set_pull_timeout_function(session, mem_pull_timeout);
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gnutls_transport_set_ptr(session, &memdata);
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do {
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res = gnutls_handshake(session);
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} while (res < 0 && gnutls_error_is_fatal(res) == 0);
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if (res >= 0) {
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for (;;) {
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char buf[16384];
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res = gnutls_record_recv(session, buf, sizeof(buf));
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if (res <= 0) {
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break;
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}
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}
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}
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gnutls_deinit(session);
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gnutls_certificate_free_credentials(xcred);
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return 0;
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}
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