|  | // Copyright 2017 The BoringSSL Authors | 
|  | // | 
|  | // Licensed under the Apache License, Version 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.apache.org/licenses/LICENSE-2.0 | 
|  | // | 
|  | // Unless required by applicable law or agreed to in writing, software | 
|  | // distributed under the License is distributed on an "AS IS" BASIS, | 
|  | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | // See the License for the specific language governing permissions and | 
|  | // limitations under the License. | 
|  |  | 
|  | #ifndef HEADER_SSL_TEST_FUZZER | 
|  | #define HEADER_SSL_TEST_FUZZER | 
|  |  | 
|  | #include <assert.h> | 
|  | #include <stdlib.h> | 
|  | #include <string.h> | 
|  |  | 
|  | #include <algorithm> | 
|  | #include <vector> | 
|  |  | 
|  | #include <openssl/bio.h> | 
|  | #include <openssl/bytestring.h> | 
|  | #include <openssl/crypto.h> | 
|  | #include <openssl/err.h> | 
|  | #include <openssl/evp.h> | 
|  | #include <openssl/hpke.h> | 
|  | #include <openssl/rand.h> | 
|  | #include <openssl/rsa.h> | 
|  | #include <openssl/ssl.h> | 
|  | #include <openssl/x509.h> | 
|  |  | 
|  | #include "../../crypto/internal.h" | 
|  | #include "./fuzzer_tags.h" | 
|  |  | 
|  | #if defined(OPENSSL_WINDOWS) | 
|  | // Windows defines struct timeval in winsock2.h. | 
|  | #include <winsock2.h> | 
|  | #else | 
|  | #include <sys/time.h> | 
|  | #endif | 
|  |  | 
|  | namespace { | 
|  |  | 
|  | const uint8_t kP256KeyPKCS8[] = { | 
|  | 0x30, 0x81, 0x87, 0x02, 0x01, 0x00, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, | 
|  | 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, | 
|  | 0x03, 0x01, 0x07, 0x04, 0x6d, 0x30, 0x6b, 0x02, 0x01, 0x01, 0x04, 0x20, | 
|  | 0x43, 0x09, 0xc0, 0x67, 0x75, 0x21, 0x47, 0x9d, 0xa8, 0xfa, 0x16, 0xdf, | 
|  | 0x15, 0x73, 0x61, 0x34, 0x68, 0x6f, 0xe3, 0x8e, 0x47, 0x91, 0x95, 0xab, | 
|  | 0x79, 0x4a, 0x72, 0x14, 0xcb, 0xe2, 0x49, 0x4f, 0xa1, 0x44, 0x03, 0x42, | 
|  | 0x00, 0x04, 0xde, 0x09, 0x08, 0x07, 0x03, 0x2e, 0x8f, 0x37, 0x9a, 0xd5, | 
|  | 0xad, 0xe5, 0xc6, 0x9d, 0xd4, 0x63, 0xc7, 0x4a, 0xe7, 0x20, 0xcb, 0x90, | 
|  | 0xa0, 0x1f, 0x18, 0x18, 0x72, 0xb5, 0x21, 0x88, 0x38, 0xc0, 0xdb, 0xba, | 
|  | 0xf6, 0x99, 0xd8, 0xa5, 0x3b, 0x83, 0xe9, 0xe3, 0xd5, 0x61, 0x99, 0x73, | 
|  | 0x42, 0xc6, 0x6c, 0xe8, 0x0a, 0x95, 0x40, 0x41, 0x3b, 0x0d, 0x10, 0xa7, | 
|  | 0x4a, 0x93, 0xdb, 0x5a, 0xe7, 0xec, | 
|  | }; | 
|  |  | 
|  | const uint8_t kOCSPResponse[] = {0x01, 0x02, 0x03, 0x04}; | 
|  |  | 
|  | const uint8_t kSCT[] = {0x00, 0x06, 0x00, 0x04, 0x05, 0x06, 0x07, 0x08}; | 
|  |  | 
|  | const uint8_t kCertificateDER[] = { | 
|  | 0x30, 0x82, 0x02, 0xff, 0x30, 0x82, 0x01, 0xe7, 0xa0, 0x03, 0x02, 0x01, | 
|  | 0x02, 0x02, 0x11, 0x00, 0xb1, 0x84, 0xee, 0x34, 0x99, 0x98, 0x76, 0xfb, | 
|  | 0x6f, 0xb2, 0x15, 0xc8, 0x47, 0x79, 0x05, 0x9b, 0x30, 0x0d, 0x06, 0x09, | 
|  | 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x30, | 
|  | 0x12, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x07, | 
|  | 0x41, 0x63, 0x6d, 0x65, 0x20, 0x43, 0x6f, 0x30, 0x1e, 0x17, 0x0d, 0x31, | 
|  | 0x35, 0x31, 0x31, 0x30, 0x37, 0x30, 0x30, 0x32, 0x34, 0x35, 0x36, 0x5a, | 
|  | 0x17, 0x0d, 0x31, 0x36, 0x31, 0x31, 0x30, 0x36, 0x30, 0x30, 0x32, 0x34, | 
|  | 0x35, 0x36, 0x5a, 0x30, 0x12, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, | 
|  | 0x04, 0x0a, 0x13, 0x07, 0x41, 0x63, 0x6d, 0x65, 0x20, 0x43, 0x6f, 0x30, | 
|  | 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, | 
|  | 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, | 
|  | 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xce, 0x47, 0xcb, 0x11, | 
|  | 0xbb, 0xd2, 0x9d, 0x8e, 0x9e, 0xd2, 0x1e, 0x14, 0xaf, 0xc7, 0xea, 0xb6, | 
|  | 0xc9, 0x38, 0x2a, 0x6f, 0xb3, 0x7e, 0xfb, 0xbc, 0xfc, 0x59, 0x42, 0xb9, | 
|  | 0x56, 0xf0, 0x4c, 0x3f, 0xf7, 0x31, 0x84, 0xbe, 0xac, 0x03, 0x9e, 0x71, | 
|  | 0x91, 0x85, 0xd8, 0x32, 0xbd, 0x00, 0xea, 0xac, 0x65, 0xf6, 0x03, 0xc8, | 
|  | 0x0f, 0x8b, 0xfd, 0x6e, 0x58, 0x88, 0x04, 0x41, 0x92, 0x74, 0xa6, 0x57, | 
|  | 0x2e, 0x8e, 0x88, 0xd5, 0x3d, 0xda, 0x14, 0x3e, 0x63, 0x88, 0x22, 0xe3, | 
|  | 0x53, 0xe9, 0xba, 0x39, 0x09, 0xac, 0xfb, 0xd0, 0x4c, 0xf2, 0x3c, 0x20, | 
|  | 0xd6, 0x97, 0xe6, 0xed, 0xf1, 0x62, 0x1e, 0xe5, 0xc9, 0x48, 0xa0, 0xca, | 
|  | 0x2e, 0x3c, 0x14, 0x5a, 0x82, 0xd4, 0xed, 0xb1, 0xe3, 0x43, 0xc1, 0x2a, | 
|  | 0x59, 0xa5, 0xb9, 0xc8, 0x48, 0xa7, 0x39, 0x23, 0x74, 0xa7, 0x37, 0xb0, | 
|  | 0x6f, 0xc3, 0x64, 0x99, 0x6c, 0xa2, 0x82, 0xc8, 0xf6, 0xdb, 0x86, 0x40, | 
|  | 0xce, 0xd1, 0x85, 0x9f, 0xce, 0x69, 0xf4, 0x15, 0x2a, 0x23, 0xca, 0xea, | 
|  | 0xb7, 0x7b, 0xdf, 0xfb, 0x43, 0x5f, 0xff, 0x7a, 0x49, 0x49, 0x0e, 0xe7, | 
|  | 0x02, 0x51, 0x45, 0x13, 0xe8, 0x90, 0x64, 0x21, 0x0c, 0x26, 0x2b, 0x5d, | 
|  | 0xfc, 0xe4, 0xb5, 0x86, 0x89, 0x43, 0x22, 0x4c, 0xf3, 0x3b, 0xf3, 0x09, | 
|  | 0xc4, 0xa4, 0x10, 0x80, 0xf2, 0x46, 0xe2, 0x46, 0x8f, 0x76, 0x50, 0xbf, | 
|  | 0xaf, 0x2b, 0x90, 0x1b, 0x78, 0xc7, 0xcf, 0xc1, 0x77, 0xd0, 0xfb, 0xa9, | 
|  | 0xfb, 0xc9, 0x66, 0x5a, 0xc5, 0x9b, 0x31, 0x41, 0x67, 0x01, 0xbe, 0x33, | 
|  | 0x10, 0xba, 0x05, 0x58, 0xed, 0x76, 0x53, 0xde, 0x5d, 0xc1, 0xe8, 0xbb, | 
|  | 0x9f, 0xf1, 0xcd, 0xfb, 0xdf, 0x64, 0x7f, 0xd7, 0x18, 0xab, 0x0f, 0x94, | 
|  | 0x28, 0x95, 0x4a, 0xcc, 0x6a, 0xa9, 0x50, 0xc7, 0x05, 0x47, 0x10, 0x41, | 
|  | 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x50, 0x30, 0x4e, 0x30, 0x0e, 0x06, | 
|  | 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x05, | 
|  | 0xa0, 0x30, 0x13, 0x06, 0x03, 0x55, 0x1d, 0x25, 0x04, 0x0c, 0x30, 0x0a, | 
|  | 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x01, 0x30, 0x0c, | 
|  | 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x02, 0x30, 0x00, | 
|  | 0x30, 0x19, 0x06, 0x03, 0x55, 0x1d, 0x11, 0x04, 0x12, 0x30, 0x10, 0x82, | 
|  | 0x0e, 0x66, 0x75, 0x7a, 0x7a, 0x2e, 0x62, 0x6f, 0x72, 0x69, 0x6e, 0x67, | 
|  | 0x73, 0x73, 0x6c, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, | 
|  | 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x92, | 
|  | 0xde, 0xef, 0x96, 0x06, 0x7b, 0xff, 0x71, 0x7d, 0x4e, 0xa0, 0x7d, 0xae, | 
|  | 0xb8, 0x22, 0xb4, 0x2c, 0xf7, 0x96, 0x9c, 0x37, 0x1d, 0x8f, 0xe7, 0xd9, | 
|  | 0x47, 0xff, 0x3f, 0xe9, 0x35, 0x95, 0x0e, 0xdd, 0xdc, 0x7f, 0xc8, 0x8a, | 
|  | 0x1e, 0x36, 0x1d, 0x38, 0x47, 0xfc, 0x76, 0xd2, 0x1f, 0x98, 0xa1, 0x36, | 
|  | 0xac, 0xc8, 0x70, 0x38, 0x0a, 0x3d, 0x51, 0x8d, 0x0f, 0x03, 0x1b, 0xef, | 
|  | 0x62, 0xa1, 0xcb, 0x2b, 0x4a, 0x8c, 0x12, 0x2b, 0x54, 0x50, 0x9a, 0x6b, | 
|  | 0xfe, 0xaf, 0xd9, 0xf6, 0xbf, 0x58, 0x11, 0x58, 0x5e, 0xe5, 0x86, 0x1e, | 
|  | 0x3b, 0x6b, 0x30, 0x7e, 0x72, 0x89, 0xe8, 0x6b, 0x7b, 0xb7, 0xaf, 0xef, | 
|  | 0x8b, 0xa9, 0x3e, 0xb0, 0xcd, 0x0b, 0xef, 0xb0, 0x0c, 0x96, 0x2b, 0xc5, | 
|  | 0x3b, 0xd5, 0xf1, 0xc2, 0xae, 0x3a, 0x60, 0xd9, 0x0f, 0x75, 0x37, 0x55, | 
|  | 0x4d, 0x62, 0xd2, 0xed, 0x96, 0xac, 0x30, 0x6b, 0xda, 0xa1, 0x48, 0x17, | 
|  | 0x96, 0x23, 0x85, 0x9a, 0x57, 0x77, 0xe9, 0x22, 0xa2, 0x37, 0x03, 0xba, | 
|  | 0x49, 0x77, 0x40, 0x3b, 0x76, 0x4b, 0xda, 0xc1, 0x04, 0x57, 0x55, 0x34, | 
|  | 0x22, 0x83, 0x45, 0x29, 0xab, 0x2e, 0x11, 0xff, 0x0d, 0xab, 0x55, 0xb1, | 
|  | 0xa7, 0x58, 0x59, 0x05, 0x25, 0xf9, 0x1e, 0x3d, 0xb7, 0xac, 0x04, 0x39, | 
|  | 0x2c, 0xf9, 0xaf, 0xb8, 0x68, 0xfb, 0x8e, 0x35, 0x71, 0x32, 0xff, 0x70, | 
|  | 0xe9, 0x46, 0x6d, 0x5c, 0x06, 0x90, 0x88, 0x23, 0x48, 0x0c, 0x50, 0xeb, | 
|  | 0x0a, 0xa9, 0xae, 0xe8, 0xfc, 0xbe, 0xa5, 0x76, 0x94, 0xd7, 0x64, 0x22, | 
|  | 0x38, 0x98, 0x17, 0xa4, 0x3a, 0xa7, 0x59, 0x9f, 0x1d, 0x3b, 0x75, 0x90, | 
|  | 0x1a, 0x81, 0xef, 0x19, 0xfb, 0x2b, 0xb7, 0xa7, 0x64, 0x61, 0x22, 0xa4, | 
|  | 0x6f, 0x7b, 0xfa, 0x58, 0xbb, 0x8c, 0x4e, 0x77, 0x67, 0xd0, 0x5d, 0x58, | 
|  | 0x76, 0x8a, 0xbb, | 
|  | }; | 
|  |  | 
|  | const uint8_t kRSAPrivateKeyDER[] = { | 
|  | 0x30, 0x82, 0x04, 0xa5, 0x02, 0x01, 0x00, 0x02, 0x82, 0x01, 0x01, 0x00, | 
|  | 0xce, 0x47, 0xcb, 0x11, 0xbb, 0xd2, 0x9d, 0x8e, 0x9e, 0xd2, 0x1e, 0x14, | 
|  | 0xaf, 0xc7, 0xea, 0xb6, 0xc9, 0x38, 0x2a, 0x6f, 0xb3, 0x7e, 0xfb, 0xbc, | 
|  | 0xfc, 0x59, 0x42, 0xb9, 0x56, 0xf0, 0x4c, 0x3f, 0xf7, 0x31, 0x84, 0xbe, | 
|  | 0xac, 0x03, 0x9e, 0x71, 0x91, 0x85, 0xd8, 0x32, 0xbd, 0x00, 0xea, 0xac, | 
|  | 0x65, 0xf6, 0x03, 0xc8, 0x0f, 0x8b, 0xfd, 0x6e, 0x58, 0x88, 0x04, 0x41, | 
|  | 0x92, 0x74, 0xa6, 0x57, 0x2e, 0x8e, 0x88, 0xd5, 0x3d, 0xda, 0x14, 0x3e, | 
|  | 0x63, 0x88, 0x22, 0xe3, 0x53, 0xe9, 0xba, 0x39, 0x09, 0xac, 0xfb, 0xd0, | 
|  | 0x4c, 0xf2, 0x3c, 0x20, 0xd6, 0x97, 0xe6, 0xed, 0xf1, 0x62, 0x1e, 0xe5, | 
|  | 0xc9, 0x48, 0xa0, 0xca, 0x2e, 0x3c, 0x14, 0x5a, 0x82, 0xd4, 0xed, 0xb1, | 
|  | 0xe3, 0x43, 0xc1, 0x2a, 0x59, 0xa5, 0xb9, 0xc8, 0x48, 0xa7, 0x39, 0x23, | 
|  | 0x74, 0xa7, 0x37, 0xb0, 0x6f, 0xc3, 0x64, 0x99, 0x6c, 0xa2, 0x82, 0xc8, | 
|  | 0xf6, 0xdb, 0x86, 0x40, 0xce, 0xd1, 0x85, 0x9f, 0xce, 0x69, 0xf4, 0x15, | 
|  | 0x2a, 0x23, 0xca, 0xea, 0xb7, 0x7b, 0xdf, 0xfb, 0x43, 0x5f, 0xff, 0x7a, | 
|  | 0x49, 0x49, 0x0e, 0xe7, 0x02, 0x51, 0x45, 0x13, 0xe8, 0x90, 0x64, 0x21, | 
|  | 0x0c, 0x26, 0x2b, 0x5d, 0xfc, 0xe4, 0xb5, 0x86, 0x89, 0x43, 0x22, 0x4c, | 
|  | 0xf3, 0x3b, 0xf3, 0x09, 0xc4, 0xa4, 0x10, 0x80, 0xf2, 0x46, 0xe2, 0x46, | 
|  | 0x8f, 0x76, 0x50, 0xbf, 0xaf, 0x2b, 0x90, 0x1b, 0x78, 0xc7, 0xcf, 0xc1, | 
|  | 0x77, 0xd0, 0xfb, 0xa9, 0xfb, 0xc9, 0x66, 0x5a, 0xc5, 0x9b, 0x31, 0x41, | 
|  | 0x67, 0x01, 0xbe, 0x33, 0x10, 0xba, 0x05, 0x58, 0xed, 0x76, 0x53, 0xde, | 
|  | 0x5d, 0xc1, 0xe8, 0xbb, 0x9f, 0xf1, 0xcd, 0xfb, 0xdf, 0x64, 0x7f, 0xd7, | 
|  | 0x18, 0xab, 0x0f, 0x94, 0x28, 0x95, 0x4a, 0xcc, 0x6a, 0xa9, 0x50, 0xc7, | 
|  | 0x05, 0x47, 0x10, 0x41, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x82, 0x01, | 
|  | 0x01, 0x00, 0xa8, 0x47, 0xb9, 0x4a, 0x06, 0x47, 0x93, 0x71, 0x3d, 0xef, | 
|  | 0x7b, 0xca, 0xb4, 0x7c, 0x0a, 0xe6, 0x82, 0xd0, 0xe7, 0x0d, 0xa9, 0x08, | 
|  | 0xf6, 0xa4, 0xfd, 0xd8, 0x73, 0xae, 0x6f, 0x56, 0x29, 0x5e, 0x25, 0x72, | 
|  | 0xa8, 0x30, 0x44, 0x73, 0xcf, 0x56, 0x26, 0xb9, 0x61, 0xde, 0x42, 0x81, | 
|  | 0xf4, 0xf0, 0x1f, 0x5d, 0xcb, 0x47, 0xf2, 0x26, 0xe9, 0xe0, 0x93, 0x28, | 
|  | 0xa3, 0x10, 0x3b, 0x42, 0x1e, 0x51, 0x11, 0x12, 0x06, 0x5e, 0xaf, 0xce, | 
|  | 0xb0, 0xa5, 0x14, 0xdd, 0x82, 0x58, 0xa1, 0xa4, 0x12, 0xdf, 0x65, 0x1d, | 
|  | 0x51, 0x70, 0x64, 0xd5, 0x58, 0x68, 0x11, 0xa8, 0x6a, 0x23, 0xc2, 0xbf, | 
|  | 0xa1, 0x25, 0x24, 0x47, 0xb3, 0xa4, 0x3c, 0x83, 0x96, 0xb7, 0x1f, 0xf4, | 
|  | 0x44, 0xd4, 0xd1, 0xe9, 0xfc, 0x33, 0x68, 0x5e, 0xe2, 0x68, 0x99, 0x9c, | 
|  | 0x91, 0xe8, 0x72, 0xc9, 0xd7, 0x8c, 0x80, 0x20, 0x8e, 0x77, 0x83, 0x4d, | 
|  | 0xe4, 0xab, 0xf9, 0x74, 0xa1, 0xdf, 0xd3, 0xc0, 0x0d, 0x5b, 0x05, 0x51, | 
|  | 0xc2, 0x6f, 0xb2, 0x91, 0x02, 0xec, 0xc0, 0x02, 0x1a, 0x5c, 0x91, 0x05, | 
|  | 0xf1, 0xe3, 0xfa, 0x65, 0xc2, 0xad, 0x24, 0xe6, 0xe5, 0x3c, 0xb6, 0x16, | 
|  | 0xf1, 0xa1, 0x67, 0x1a, 0x9d, 0x37, 0x56, 0xbf, 0x01, 0xd7, 0x3b, 0x35, | 
|  | 0x30, 0x57, 0x73, 0xf4, 0xf0, 0x5e, 0xa7, 0xe8, 0x0a, 0xc1, 0x94, 0x17, | 
|  | 0xcf, 0x0a, 0xbd, 0xf5, 0x31, 0xa7, 0x2d, 0xf7, 0xf5, 0xd9, 0x8c, 0xc2, | 
|  | 0x01, 0xbd, 0xda, 0x16, 0x8e, 0xb9, 0x30, 0x40, 0xa6, 0x6e, 0xbd, 0xcd, | 
|  | 0x4d, 0x84, 0x67, 0x4e, 0x0b, 0xce, 0xd5, 0xef, 0xf8, 0x08, 0x63, 0x02, | 
|  | 0xc6, 0xc7, 0xf7, 0x67, 0x92, 0xe2, 0x23, 0x9d, 0x27, 0x22, 0x1d, 0xc6, | 
|  | 0x67, 0x5e, 0x66, 0xbf, 0x03, 0xb8, 0xa9, 0x67, 0xd4, 0x39, 0xd8, 0x75, | 
|  | 0xfa, 0xe8, 0xed, 0x56, 0xb8, 0x81, 0x02, 0x81, 0x81, 0x00, 0xf7, 0x46, | 
|  | 0x68, 0xc6, 0x13, 0xf8, 0xba, 0x0f, 0x83, 0xdb, 0x05, 0xa8, 0x25, 0x00, | 
|  | 0x70, 0x9c, 0x9e, 0x8b, 0x12, 0x34, 0x0d, 0x96, 0xcf, 0x0d, 0x98, 0x9b, | 
|  | 0x8d, 0x9c, 0x96, 0x78, 0xd1, 0x3c, 0x01, 0x8c, 0xb9, 0x35, 0x5c, 0x20, | 
|  | 0x42, 0xb4, 0x38, 0xe3, 0xd6, 0x54, 0xe7, 0x55, 0xd6, 0x26, 0x8a, 0x0c, | 
|  | 0xf6, 0x1f, 0xe0, 0x04, 0xc1, 0x22, 0x42, 0x19, 0x61, 0xc4, 0x94, 0x7c, | 
|  | 0x07, 0x2e, 0x80, 0x52, 0xfe, 0x8d, 0xe6, 0x92, 0x3a, 0x91, 0xfe, 0x72, | 
|  | 0x99, 0xe1, 0x2a, 0x73, 0x76, 0xb1, 0x24, 0x20, 0x67, 0xde, 0x28, 0xcb, | 
|  | 0x0e, 0xe6, 0x52, 0xb5, 0xfa, 0xfb, 0x8b, 0x1e, 0x6a, 0x1d, 0x09, 0x26, | 
|  | 0xb9, 0xa7, 0x61, 0xba, 0xf8, 0x79, 0xd2, 0x66, 0x57, 0x28, 0xd7, 0x31, | 
|  | 0xb5, 0x0b, 0x27, 0x19, 0x1e, 0x6f, 0x46, 0xfc, 0x54, 0x95, 0xeb, 0x78, | 
|  | 0x01, 0xb6, 0xd9, 0x79, 0x5a, 0x4d, 0x02, 0x81, 0x81, 0x00, 0xd5, 0x8f, | 
|  | 0x16, 0x53, 0x2f, 0x57, 0x93, 0xbf, 0x09, 0x75, 0xbf, 0x63, 0x40, 0x3d, | 
|  | 0x27, 0xfd, 0x23, 0x21, 0xde, 0x9b, 0xe9, 0x73, 0x3f, 0x49, 0x02, 0xd2, | 
|  | 0x38, 0x96, 0xcf, 0xc3, 0xba, 0x92, 0x07, 0x87, 0x52, 0xa9, 0x35, 0xe3, | 
|  | 0x0c, 0xe4, 0x2f, 0x05, 0x7b, 0x37, 0xa5, 0x40, 0x9c, 0x3b, 0x94, 0xf7, | 
|  | 0xad, 0xa0, 0xee, 0x3a, 0xa8, 0xfb, 0x1f, 0x11, 0x1f, 0xd8, 0x9a, 0x80, | 
|  | 0x42, 0x3d, 0x7f, 0xa4, 0xb8, 0x9a, 0xaa, 0xea, 0x72, 0xc1, 0xe3, 0xed, | 
|  | 0x06, 0x60, 0x92, 0x37, 0xf9, 0xba, 0xfb, 0x9e, 0xed, 0x05, 0xa6, 0xd4, | 
|  | 0x72, 0x68, 0x4f, 0x63, 0xfe, 0xd6, 0x10, 0x0d, 0x4f, 0x0a, 0x93, 0xc6, | 
|  | 0xb9, 0xd7, 0xaf, 0xfd, 0xd9, 0x57, 0x7d, 0xcb, 0x75, 0xe8, 0x93, 0x2b, | 
|  | 0xae, 0x4f, 0xea, 0xd7, 0x30, 0x0b, 0x58, 0x44, 0x82, 0x0f, 0x84, 0x5d, | 
|  | 0x62, 0x11, 0x78, 0xea, 0x5f, 0xc5, 0x02, 0x81, 0x81, 0x00, 0x82, 0x0c, | 
|  | 0xc1, 0xe6, 0x0b, 0x72, 0xf1, 0x48, 0x5f, 0xac, 0xbd, 0x98, 0xe5, 0x7d, | 
|  | 0x09, 0xbd, 0x15, 0x95, 0x47, 0x09, 0xa1, 0x6c, 0x03, 0x91, 0xbf, 0x05, | 
|  | 0x70, 0xc1, 0x3e, 0x52, 0x64, 0x99, 0x0e, 0xa7, 0x98, 0x70, 0xfb, 0xf6, | 
|  | 0xeb, 0x9e, 0x25, 0x9d, 0x8e, 0x88, 0x30, 0xf2, 0xf0, 0x22, 0x6c, 0xd0, | 
|  | 0xcc, 0x51, 0x8f, 0x5c, 0x70, 0xc7, 0x37, 0xc4, 0x69, 0xab, 0x1d, 0xfc, | 
|  | 0xed, 0x3a, 0x03, 0xbb, 0xa2, 0xad, 0xb6, 0xea, 0x89, 0x6b, 0x67, 0x4b, | 
|  | 0x96, 0xaa, 0xd9, 0xcc, 0xc8, 0x4b, 0xfa, 0x18, 0x21, 0x08, 0xb2, 0xa3, | 
|  | 0xb9, 0x3e, 0x61, 0x99, 0xdc, 0x5a, 0x97, 0x9c, 0x73, 0x6a, 0xb9, 0xf9, | 
|  | 0x68, 0x03, 0x24, 0x5f, 0x55, 0x77, 0x9c, 0xb4, 0xbe, 0x7a, 0x78, 0x53, | 
|  | 0x68, 0x48, 0x69, 0x53, 0xc8, 0xb1, 0xf5, 0xbf, 0x98, 0x2d, 0x11, 0x1e, | 
|  | 0x98, 0xa8, 0x36, 0x50, 0xa0, 0xb1, 0x02, 0x81, 0x81, 0x00, 0x90, 0x88, | 
|  | 0x30, 0x71, 0xc7, 0xfe, 0x9b, 0x6d, 0x95, 0x37, 0x6d, 0x79, 0xfc, 0x85, | 
|  | 0xe7, 0x44, 0x78, 0xbc, 0x79, 0x6e, 0x47, 0x86, 0xc9, 0xf3, 0xdd, 0xc6, | 
|  | 0xec, 0xa9, 0x94, 0x9f, 0x40, 0xeb, 0x87, 0xd0, 0xdb, 0xee, 0xcd, 0x1b, | 
|  | 0x87, 0x23, 0xff, 0x76, 0xd4, 0x37, 0x8a, 0xcd, 0xb9, 0x6e, 0xd1, 0x98, | 
|  | 0xf6, 0x97, 0x8d, 0xe3, 0x81, 0x6d, 0xc3, 0x4e, 0xd1, 0xa0, 0xc4, 0x9f, | 
|  | 0xbd, 0x34, 0xe5, 0xe8, 0x53, 0x4f, 0xca, 0x10, 0xb5, 0xed, 0xe7, 0x16, | 
|  | 0x09, 0x54, 0xde, 0x60, 0xa7, 0xd1, 0x16, 0x6e, 0x2e, 0xb7, 0xbe, 0x7a, | 
|  | 0xd5, 0x9b, 0x26, 0xef, 0xe4, 0x0e, 0x77, 0xfa, 0xa9, 0xdd, 0xdc, 0xb9, | 
|  | 0x88, 0x19, 0x23, 0x70, 0xc7, 0xe1, 0x60, 0xaf, 0x8c, 0x73, 0x04, 0xf7, | 
|  | 0x71, 0x17, 0x81, 0x36, 0x75, 0xbb, 0x97, 0xd7, 0x75, 0xb6, 0x8e, 0xbc, | 
|  | 0xac, 0x9c, 0x6a, 0x9b, 0x24, 0x89, 0x02, 0x81, 0x80, 0x5a, 0x2b, 0xc7, | 
|  | 0x6b, 0x8c, 0x65, 0xdb, 0x04, 0x73, 0xab, 0x25, 0xe1, 0x5b, 0xbc, 0x3c, | 
|  | 0xcf, 0x5a, 0x3c, 0x04, 0xae, 0x97, 0x2e, 0xfd, 0xa4, 0x97, 0x1f, 0x05, | 
|  | 0x17, 0x27, 0xac, 0x7c, 0x30, 0x85, 0xb4, 0x82, 0x3f, 0x5b, 0xb7, 0x94, | 
|  | 0x3b, 0x7f, 0x6c, 0x0c, 0xc7, 0x16, 0xc6, 0xa0, 0xbd, 0x80, 0xb0, 0x81, | 
|  | 0xde, 0xa0, 0x23, 0xa6, 0xf6, 0x75, 0x33, 0x51, 0x35, 0xa2, 0x75, 0x55, | 
|  | 0x70, 0x4d, 0x42, 0xbb, 0xcf, 0x54, 0xe4, 0xdb, 0x2d, 0x88, 0xa0, 0x7a, | 
|  | 0xf2, 0x17, 0xa7, 0xdd, 0x13, 0x44, 0x9f, 0x5f, 0x6b, 0x2c, 0x42, 0x42, | 
|  | 0x8b, 0x13, 0x4d, 0xf9, 0x5b, 0xf8, 0x33, 0x42, 0xd9, 0x9e, 0x50, 0x1c, | 
|  | 0x7c, 0xbc, 0xfa, 0x62, 0x85, 0x0b, 0xcf, 0x99, 0xda, 0x9e, 0x04, 0x90, | 
|  | 0xb2, 0xc6, 0xb2, 0x0a, 0x2a, 0x7c, 0x6d, 0x6a, 0x40, 0xfc, 0xf5, 0x50, | 
|  | 0x98, 0x46, 0x89, 0x82, 0x40, | 
|  | }; | 
|  |  | 
|  | const uint8_t kALPNProtocols[] = { | 
|  | 0x01, 'a', 0x02, 'a', 'a', 0x03, 'a', 'a', 'a', | 
|  | }; | 
|  |  | 
|  | const uint8_t kECHKey[] = { | 
|  | 0x35, 0x6d, 0x45, 0x06, 0xb3, 0x88, 0x89, 0x2e, 0xd6, 0x87, 0x84, | 
|  | 0xd2, 0x2d, 0x6f, 0x83, 0x48, 0xad, 0xf2, 0xfd, 0x08, 0x51, 0x73, | 
|  | 0x10, 0xa0, 0xb8, 0xdd, 0xe9, 0x96, 0x6a, 0xde, 0xbc, 0x82, | 
|  | }; | 
|  |  | 
|  | int ALPNSelectCallback(SSL *ssl, const uint8_t **out, uint8_t *out_len, | 
|  | const uint8_t *in, unsigned in_len, void *arg) { | 
|  | static const uint8_t kProtocol[] = {'a', 'a'}; | 
|  | *out = kProtocol; | 
|  | *out_len = sizeof(kProtocol); | 
|  | return SSL_TLSEXT_ERR_OK; | 
|  | } | 
|  |  | 
|  | int NPNSelectCallback(SSL *ssl, uint8_t **out, uint8_t *out_len, | 
|  | const uint8_t *in, unsigned in_len, void *arg) { | 
|  | static const uint8_t kProtocol[] = {'a', 'a'}; | 
|  | *out = const_cast<uint8_t *>(kProtocol); | 
|  | *out_len = sizeof(kProtocol); | 
|  | return SSL_TLSEXT_ERR_OK; | 
|  | } | 
|  |  | 
|  | int NPNAdvertiseCallback(SSL *ssl, const uint8_t **out, unsigned *out_len, | 
|  | void *arg) { | 
|  | static const uint8_t kProtocols[] = { | 
|  | 0x01, 'a', 0x02, 'a', 'a', 0x03, 'a', 'a', 'a', | 
|  | }; | 
|  | *out = kProtocols; | 
|  | *out_len = sizeof(kProtocols); | 
|  | return SSL_TLSEXT_ERR_OK; | 
|  | } | 
|  |  | 
|  | class TLSFuzzer { | 
|  | public: | 
|  | enum Protocol { | 
|  | kTLS, | 
|  | kDTLS, | 
|  | }; | 
|  |  | 
|  | enum Role { | 
|  | kClient, | 
|  | kServer, | 
|  | }; | 
|  |  | 
|  | enum FuzzerMode { | 
|  | kFuzzerModeOn, | 
|  | kFuzzerModeOff, | 
|  | }; | 
|  |  | 
|  | TLSFuzzer(Protocol protocol, Role role, FuzzerMode fuzzer_mode) | 
|  | : debug_(getenv("BORINGSSL_FUZZER_DEBUG") != nullptr), | 
|  | protocol_(protocol), | 
|  | role_(role) { | 
|  | #if defined(FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION) | 
|  | if (fuzzer_mode == kFuzzerModeOn) { | 
|  | CRYPTO_set_fuzzer_mode(1); | 
|  | } | 
|  | #endif | 
|  | if (!Init()) { | 
|  | abort(); | 
|  | } | 
|  | } | 
|  |  | 
|  | static void MoveBIOs(SSL *dest, SSL *src) { | 
|  | BIO *rbio = SSL_get_rbio(src); | 
|  | BIO_up_ref(rbio); | 
|  | SSL_set0_rbio(dest, rbio); | 
|  |  | 
|  | BIO *wbio = SSL_get_wbio(src); | 
|  | BIO_up_ref(wbio); | 
|  | SSL_set0_wbio(dest, wbio); | 
|  |  | 
|  | SSL_set0_rbio(src, nullptr); | 
|  | SSL_set0_wbio(src, nullptr); | 
|  | } | 
|  |  | 
|  | int TestOneInput(const uint8_t *buf, size_t len) { | 
|  | #if defined(FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION) | 
|  | RAND_reset_for_fuzzing(); | 
|  | #endif | 
|  |  | 
|  | CBS cbs; | 
|  | CBS_init(&cbs, buf, len); | 
|  | bssl::UniquePtr<SSL> ssl = SetupTest(&cbs); | 
|  | if (!ssl) { | 
|  | if (debug_) { | 
|  | fprintf(stderr, "Error parsing parameters.\n"); | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | if (role_ == kClient) { | 
|  | SSL_set_renegotiate_mode(ssl.get(), ssl_renegotiate_freely); | 
|  | SSL_set_tlsext_host_name(ssl.get(), "hostname"); | 
|  | } | 
|  |  | 
|  | // ssl_handoff may or may not be used. | 
|  | bssl::UniquePtr<SSL> ssl_handoff(SSL_new(ctx_.get())); | 
|  | bssl::UniquePtr<SSL> ssl_handback(SSL_new(ctx_.get())); | 
|  | SSL_set_accept_state(ssl_handoff.get()); | 
|  |  | 
|  | SSL_set0_rbio(ssl.get(), MakeBIO(CBS_data(&cbs), CBS_len(&cbs)).release()); | 
|  | SSL_set0_wbio(ssl.get(), BIO_new(BIO_s_mem())); | 
|  |  | 
|  | SSL *ssl_handshake = ssl.get(); | 
|  | bool handshake_successful = false; | 
|  | bool handback_successful = false; | 
|  | for (;;) { | 
|  | int ret = SSL_do_handshake(ssl_handshake); | 
|  | if (ret < 0 && SSL_get_error(ssl_handshake, ret) == SSL_ERROR_HANDOFF) { | 
|  | MoveBIOs(ssl_handoff.get(), ssl.get()); | 
|  | // Ordinarily we would call SSL_serialize_handoff(ssl.get().  But for | 
|  | // fuzzing, use the serialized handoff that's getting fuzzed. | 
|  | if (!bssl::SSL_apply_handoff(ssl_handoff.get(), handoff_)) { | 
|  | if (debug_) { | 
|  | fprintf(stderr, "Handoff failed.\n"); | 
|  | } | 
|  | break; | 
|  | } | 
|  | ssl_handshake = ssl_handoff.get(); | 
|  | } else if (ret < 0 && | 
|  | SSL_get_error(ssl_handshake, ret) == SSL_ERROR_HANDBACK) { | 
|  | MoveBIOs(ssl_handback.get(), ssl_handoff.get()); | 
|  | if (!bssl::SSL_apply_handback(ssl_handback.get(), handback_)) { | 
|  | if (debug_) { | 
|  | fprintf(stderr, "Handback failed.\n"); | 
|  | } | 
|  | break; | 
|  | } | 
|  | handback_successful = true; | 
|  | ssl_handshake = ssl_handback.get(); | 
|  | } else { | 
|  | handshake_successful = ret == 1; | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (debug_) { | 
|  | if (!handshake_successful) { | 
|  | fprintf(stderr, "Handshake failed.\n"); | 
|  | } else if (handback_successful) { | 
|  | fprintf(stderr, "Handback successful.\n"); | 
|  | } | 
|  | } | 
|  |  | 
|  | if (handshake_successful) { | 
|  | // Keep reading application data until error or EOF. | 
|  | uint8_t tmp[1024]; | 
|  | for (;;) { | 
|  | if (SSL_read(ssl_handshake, tmp, sizeof(tmp)) <= 0) { | 
|  | break; | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | if (debug_) { | 
|  | ERR_print_errors_fp(stderr); | 
|  | } | 
|  | ERR_clear_error(); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | private: | 
|  | // Init initializes |ctx_| with settings common to all inputs. | 
|  | bool Init() { | 
|  | ctx_.reset(SSL_CTX_new(protocol_ == kDTLS ? DTLS_method() : TLS_method())); | 
|  | bssl::UniquePtr<EVP_PKEY> pkey(EVP_PKEY_new()); | 
|  | bssl::UniquePtr<RSA> privkey(RSA_private_key_from_bytes( | 
|  | kRSAPrivateKeyDER, sizeof(kRSAPrivateKeyDER))); | 
|  | if (!ctx_ || !privkey || !pkey || | 
|  | !EVP_PKEY_set1_RSA(pkey.get(), privkey.get()) || | 
|  | !SSL_CTX_use_PrivateKey(ctx_.get(), pkey.get())) { | 
|  | return false; | 
|  | } | 
|  |  | 
|  | const uint8_t *bufp = kCertificateDER; | 
|  | bssl::UniquePtr<X509> cert(d2i_X509(NULL, &bufp, sizeof(kCertificateDER))); | 
|  | if (!cert || | 
|  | !SSL_CTX_use_certificate(ctx_.get(), cert.get()) || | 
|  | !SSL_CTX_set_ocsp_response(ctx_.get(), kOCSPResponse, | 
|  | sizeof(kOCSPResponse)) || | 
|  | !SSL_CTX_set_signed_cert_timestamp_list(ctx_.get(), kSCT, | 
|  | sizeof(kSCT))) { | 
|  | return false; | 
|  | } | 
|  |  | 
|  | // Use a constant clock. | 
|  | SSL_CTX_set_current_time_cb(ctx_.get(), | 
|  | [](const SSL *ssl, timeval *out_clock) { | 
|  | *out_clock = {1234, 1234}; | 
|  | }); | 
|  |  | 
|  | // When accepting peer certificates, allow any certificate. | 
|  | SSL_CTX_set_cert_verify_callback( | 
|  | ctx_.get(), | 
|  | [](X509_STORE_CTX *store_ctx, void *arg) -> int { return 1; }, nullptr); | 
|  |  | 
|  | SSL_CTX_enable_signed_cert_timestamps(ctx_.get()); | 
|  | SSL_CTX_enable_ocsp_stapling(ctx_.get()); | 
|  |  | 
|  | // Enable versions and ciphers that are off by default. | 
|  | uint16_t min_version = protocol_ == kDTLS ? DTLS1_VERSION : TLS1_VERSION; | 
|  | uint16_t max_version = | 
|  | protocol_ == kDTLS ? DTLS1_3_VERSION : TLS1_3_VERSION; | 
|  | if (!SSL_CTX_set_min_proto_version(ctx_.get(), min_version) || | 
|  | !SSL_CTX_set_max_proto_version(ctx_.get(), max_version) || | 
|  | !SSL_CTX_set_strict_cipher_list(ctx_.get(), "ALL:3DES")) { | 
|  | return false; | 
|  | } | 
|  |  | 
|  | static const uint16_t kGroups[] = { | 
|  | SSL_GROUP_X25519_MLKEM768, SSL_GROUP_X25519_KYBER768_DRAFT00, | 
|  | SSL_GROUP_X25519,          SSL_GROUP_SECP256R1, | 
|  | SSL_GROUP_SECP384R1,       SSL_GROUP_SECP521R1}; | 
|  | if (!SSL_CTX_set1_group_ids(ctx_.get(), kGroups, | 
|  | OPENSSL_ARRAY_SIZE(kGroups))) { | 
|  | return false; | 
|  | } | 
|  |  | 
|  | SSL_CTX_set_early_data_enabled(ctx_.get(), 1); | 
|  |  | 
|  | SSL_CTX_set_next_proto_select_cb(ctx_.get(), NPNSelectCallback, nullptr); | 
|  | SSL_CTX_set_next_protos_advertised_cb(ctx_.get(), NPNAdvertiseCallback, | 
|  | nullptr); | 
|  |  | 
|  | SSL_CTX_set_alpn_select_cb(ctx_.get(), ALPNSelectCallback, nullptr); | 
|  | if (SSL_CTX_set_alpn_protos(ctx_.get(), kALPNProtocols, | 
|  | sizeof(kALPNProtocols)) != 0) { | 
|  | return false; | 
|  | } | 
|  |  | 
|  | CBS cbs; | 
|  | CBS_init(&cbs, kP256KeyPKCS8, sizeof(kP256KeyPKCS8)); | 
|  | pkey.reset(EVP_parse_private_key(&cbs)); | 
|  | if (!pkey || !SSL_CTX_set1_tls_channel_id(ctx_.get(), pkey.get())) { | 
|  | return false; | 
|  | } | 
|  | SSL_CTX_set_tls_channel_id_enabled(ctx_.get(), 1); | 
|  |  | 
|  | if (role_ == kServer) { | 
|  | bssl::UniquePtr<SSL_ECH_KEYS> keys(SSL_ECH_KEYS_new()); | 
|  | bssl::ScopedEVP_HPKE_KEY key; | 
|  | uint8_t *ech_config; | 
|  | size_t ech_config_len; | 
|  | if (!keys || | 
|  | !EVP_HPKE_KEY_init(key.get(), EVP_hpke_x25519_hkdf_sha256(), kECHKey, | 
|  | sizeof(kECHKey)) || | 
|  | // Match |echConfig| in |addEncryptedClientHelloTests| from runner.go. | 
|  | !SSL_marshal_ech_config(&ech_config, &ech_config_len, | 
|  | /*config_id=*/42, key.get(), "public.example", | 
|  | /*max_name_len=*/64)) { | 
|  | return false; | 
|  | } | 
|  | bssl::UniquePtr<uint8_t> free_ech_config(ech_config); | 
|  | if (!SSL_ECH_KEYS_add(keys.get(), /*is_retry_config=*/true, ech_config, | 
|  | ech_config_len, key.get()) || | 
|  | !SSL_CTX_set1_ech_keys(ctx_.get(), keys.get())) { | 
|  | return false; | 
|  | } | 
|  | } | 
|  |  | 
|  | return true; | 
|  | } | 
|  |  | 
|  | // SetupTest parses parameters from |cbs| and returns a newly-configured |SSL| | 
|  | // object or nullptr on error. On success, the caller should feed the | 
|  | // remaining input in |cbs| to the SSL stack. | 
|  | bssl::UniquePtr<SSL> SetupTest(CBS *cbs) { | 
|  | // |ctx| is shared between runs, so we must clear any modifications to it | 
|  | // made later on in this function. | 
|  | SSL_CTX_flush_sessions(ctx_.get(), 0); | 
|  | handoff_ = {}; | 
|  | handback_ = {}; | 
|  |  | 
|  | bssl::UniquePtr<SSL> ssl(SSL_new(ctx_.get())); | 
|  | if (role_ == kServer) { | 
|  | SSL_set_accept_state(ssl.get()); | 
|  | } else { | 
|  | SSL_set_connect_state(ssl.get()); | 
|  | } | 
|  |  | 
|  | for (;;) { | 
|  | uint16_t tag; | 
|  | if (!CBS_get_u16(cbs, &tag)) { | 
|  | return nullptr; | 
|  | } | 
|  | switch (tag) { | 
|  | case kDataTag: | 
|  | return ssl; | 
|  |  | 
|  | case kSessionTag: { | 
|  | CBS data; | 
|  | if (!CBS_get_u24_length_prefixed(cbs, &data)) { | 
|  | return nullptr; | 
|  | } | 
|  | bssl::UniquePtr<SSL_SESSION> session(SSL_SESSION_from_bytes( | 
|  | CBS_data(&data), CBS_len(&data), ctx_.get())); | 
|  | if (!session) { | 
|  | return nullptr; | 
|  | } | 
|  |  | 
|  | if (role_ == kServer) { | 
|  | SSL_CTX_add_session(ctx_.get(), session.get()); | 
|  | } else { | 
|  | SSL_set_session(ssl.get(), session.get()); | 
|  | } | 
|  | break; | 
|  | } | 
|  |  | 
|  | case kRequestClientCert: | 
|  | if (role_ == kClient) { | 
|  | return nullptr; | 
|  | } | 
|  | SSL_set_verify(ssl.get(), SSL_VERIFY_PEER, nullptr); | 
|  | break; | 
|  |  | 
|  | case kHandoffTag: { | 
|  | CBS handoff; | 
|  | if (!CBS_get_u24_length_prefixed(cbs, &handoff)) { | 
|  | return nullptr; | 
|  | } | 
|  | handoff_.assign(CBS_data(&handoff), | 
|  | CBS_data(&handoff) + CBS_len(&handoff)); | 
|  | bssl::SSL_set_handoff_mode(ssl.get(), 1); | 
|  | break; | 
|  | } | 
|  |  | 
|  | case kHandbackTag: { | 
|  | CBS handback; | 
|  | if (!CBS_get_u24_length_prefixed(cbs, &handback)) { | 
|  | return nullptr; | 
|  | } | 
|  | handback_.assign(CBS_data(&handback), | 
|  | CBS_data(&handback) + CBS_len(&handback)); | 
|  | bssl::SSL_set_handoff_mode(ssl.get(), 1); | 
|  | break; | 
|  | } | 
|  |  | 
|  | case kHintsTag: { | 
|  | CBS hints; | 
|  | if (!CBS_get_u24_length_prefixed(cbs, &hints)) { | 
|  | return nullptr; | 
|  | } | 
|  | SSL_set_handshake_hints(ssl.get(), CBS_data(&hints), CBS_len(&hints)); | 
|  | break; | 
|  | } | 
|  |  | 
|  | default: | 
|  | return nullptr; | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | struct BIOData { | 
|  | Protocol protocol; | 
|  | CBS cbs; | 
|  | }; | 
|  |  | 
|  | bssl::UniquePtr<BIO> MakeBIO(const uint8_t *in, size_t len) { | 
|  | BIOData *b = new BIOData; | 
|  | b->protocol = protocol_; | 
|  | CBS_init(&b->cbs, in, len); | 
|  |  | 
|  | bssl::UniquePtr<BIO> bio(BIO_new(BIOMethod())); | 
|  | BIO_set_init(bio.get(), 1); | 
|  | BIO_set_data(bio.get(), b); | 
|  | return bio; | 
|  | } | 
|  |  | 
|  | static int BIORead(BIO *bio, char *out, int len) { | 
|  | BIOData *b = reinterpret_cast<BIOData *>(BIO_get_data(bio)); | 
|  | if (b->protocol == kTLS) { | 
|  | len = std::min(static_cast<size_t>(len), CBS_len(&b->cbs)); | 
|  | memcpy(out, CBS_data(&b->cbs), len); | 
|  | CBS_skip(&b->cbs, len); | 
|  | return len; | 
|  | } | 
|  |  | 
|  | // Preserve packet boundaries for DTLS. | 
|  | CBS packet; | 
|  | if (!CBS_get_u24_length_prefixed(&b->cbs, &packet)) { | 
|  | return -1; | 
|  | } | 
|  | len = std::min(static_cast<size_t>(len), CBS_len(&packet)); | 
|  | memcpy(out, CBS_data(&packet), len); | 
|  | return len; | 
|  | } | 
|  |  | 
|  | static int BIODestroy(BIO *bio) { | 
|  | BIOData *b = reinterpret_cast<BIOData *>(BIO_get_data(bio)); | 
|  | delete b; | 
|  | return 1; | 
|  | } | 
|  |  | 
|  | static const BIO_METHOD *BIOMethod() { | 
|  | static const BIO_METHOD *method = [] { | 
|  | BIO_METHOD *ret = BIO_meth_new(0, nullptr); | 
|  | BSSL_CHECK(ret); | 
|  | BSSL_CHECK(BIO_meth_set_read(ret, BIORead)); | 
|  | BSSL_CHECK(BIO_meth_set_destroy(ret, BIODestroy)); | 
|  | return ret; | 
|  | }(); | 
|  | return method; | 
|  | } | 
|  |  | 
|  | bool debug_; | 
|  | Protocol protocol_; | 
|  | Role role_; | 
|  | bssl::UniquePtr<SSL_CTX> ctx_; | 
|  | std::vector<uint8_t> handoff_, handback_; | 
|  | }; | 
|  |  | 
|  | }  // namespace | 
|  |  | 
|  |  | 
|  | #endif  // HEADER_SSL_TEST_FUZZER |