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author | wolfbeast <mcwerewolf@gmail.com> | 2018-02-06 11:46:26 +0100 |
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committer | wolfbeast <mcwerewolf@gmail.com> | 2018-02-06 11:46:26 +0100 |
commit | f017b749ea9f1586d2308504553d40bf4cc5439d (patch) | |
tree | c6033924a0de9be1ab140596e305898c651bf57e /security/nss/fuzz/tls_server_target.cc | |
parent | 7c728b3c7680662fc4e92b5d03697b8339560b08 (diff) | |
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Update NSS to 3.32.1-RTM
Diffstat (limited to 'security/nss/fuzz/tls_server_target.cc')
-rw-r--r-- | security/nss/fuzz/tls_server_target.cc | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/security/nss/fuzz/tls_server_target.cc b/security/nss/fuzz/tls_server_target.cc new file mode 100644 index 000000000..0c0902077 --- /dev/null +++ b/security/nss/fuzz/tls_server_target.cc @@ -0,0 +1,141 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include <assert.h> +#include <stdint.h> +#include <memory> + +#include "blapi.h" +#include "prinit.h" +#include "ssl.h" + +#include "shared.h" +#include "tls_common.h" +#include "tls_mutators.h" +#include "tls_server_certs.h" +#include "tls_server_config.h" +#include "tls_socket.h" + +#ifdef IS_DTLS +__attribute__((constructor)) static void set_is_dtls() { + TlsMutators::SetIsDTLS(); +} +#endif + +PRFileDesc* ImportFD(PRFileDesc* model, PRFileDesc* fd) { +#ifdef IS_DTLS + return DTLS_ImportFD(model, fd); +#else + return SSL_ImportFD(model, fd); +#endif +} + +class SSLServerSessionCache { + public: + SSLServerSessionCache() { + assert(SSL_ConfigServerSessionIDCache(1024, 0, 0, ".") == SECSuccess); + } + + ~SSLServerSessionCache() { + assert(SSL_ShutdownServerSessionIDCache() == SECSuccess); + } +}; + +static void SetSocketOptions(PRFileDesc* fd, + std::unique_ptr<ServerConfig>& config) { + SECStatus rv = SSL_OptionSet(fd, SSL_NO_CACHE, config->EnableCache()); + assert(rv == SECSuccess); + + rv = SSL_OptionSet(fd, SSL_REUSE_SERVER_ECDHE_KEY, false); + assert(rv == SECSuccess); + + rv = SSL_OptionSet(fd, SSL_ENABLE_EXTENDED_MASTER_SECRET, + config->EnableExtendedMasterSecret()); + assert(rv == SECSuccess); + + rv = SSL_OptionSet(fd, SSL_REQUEST_CERTIFICATE, config->RequestCertificate()); + assert(rv == SECSuccess); + + rv = SSL_OptionSet(fd, SSL_REQUIRE_CERTIFICATE, config->RequireCertificate()); + assert(rv == SECSuccess); + + rv = SSL_OptionSet(fd, SSL_ENABLE_DEFLATE, config->EnableDeflate()); + assert(rv == SECSuccess); + + rv = SSL_OptionSet(fd, SSL_CBC_RANDOM_IV, config->EnableCbcRandomIv()); + assert(rv == SECSuccess); + + rv = SSL_OptionSet(fd, SSL_REQUIRE_SAFE_NEGOTIATION, + config->RequireSafeNegotiation()); + assert(rv == SECSuccess); + +#ifndef IS_DTLS + rv = + SSL_OptionSet(fd, SSL_ENABLE_RENEGOTIATION, SSL_RENEGOTIATE_UNRESTRICTED); + assert(rv == SECSuccess); +#endif +} + +static PRStatus InitModelSocket(void* arg) { + PRFileDesc* fd = reinterpret_cast<PRFileDesc*>(arg); + + EnableAllProtocolVersions(); + EnableAllCipherSuites(fd); + InstallServerCertificates(fd); + + return PR_SUCCESS; +} + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t len) { + static std::unique_ptr<NSSDatabase> db(new NSSDatabase()); + assert(db != nullptr); + + static std::unique_ptr<SSLServerSessionCache> cache( + new SSLServerSessionCache()); + assert(cache != nullptr); + + std::unique_ptr<ServerConfig> config(new ServerConfig(data, len)); + + // Clear the cache. We never want to resume as we couldn't reproduce that. + SSL_ClearSessionCache(); + + // Reset the RNG state. + assert(RNG_RandomUpdate(NULL, 0) == SECSuccess); + + // Create model socket. + static ScopedPRFileDesc model(ImportFD(nullptr, PR_NewTCPSocket())); + assert(model); + + // Initialize the model socket once. + static PRCallOnceType initModelOnce; + PR_CallOnceWithArg(&initModelOnce, InitModelSocket, model.get()); + + // Create and import dummy socket. + std::unique_ptr<DummyPrSocket> socket(new DummyPrSocket(data, len)); + static PRDescIdentity id = PR_GetUniqueIdentity("fuzz-server"); + ScopedPRFileDesc fd(DummyIOLayerMethods::CreateFD(id, socket.get())); + PRFileDesc* ssl_fd = ImportFD(model.get(), fd.get()); + assert(ssl_fd == fd.get()); + + SetSocketOptions(ssl_fd, config); + DoHandshake(ssl_fd, true); + + return 0; +} + +extern "C" size_t LLVMFuzzerCustomMutator(uint8_t* data, size_t size, + size_t max_size, unsigned int seed) { + using namespace TlsMutators; + return CustomMutate({DropRecord, ShuffleRecords, DuplicateRecord, + TruncateRecord, FragmentRecord}, + data, size, max_size, seed); +} + +extern "C" size_t LLVMFuzzerCustomCrossOver(const uint8_t* data1, size_t size1, + const uint8_t* data2, size_t size2, + uint8_t* out, size_t max_out_size, + unsigned int seed) { + return TlsMutators::CrossOver(data1, size1, data2, size2, out, max_out_size, + seed); +} |