client.c revision 1.1.1.1.2.2
1 1.1.1.1.2.2 pgoyette /* 2 1.1.1.1.2.2 pgoyette * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved. 3 1.1.1.1.2.2 pgoyette * 4 1.1.1.1.2.2 pgoyette * Licensed under the OpenSSL licenses, (the "License"); 5 1.1.1.1.2.2 pgoyette * you may not use this file except in compliance with the License. 6 1.1.1.1.2.2 pgoyette * You may obtain a copy of the License at 7 1.1.1.1.2.2 pgoyette * https://www.openssl.org/source/license.html 8 1.1.1.1.2.2 pgoyette * or in the file LICENSE in the source distribution. 9 1.1.1.1.2.2 pgoyette */ 10 1.1.1.1.2.2 pgoyette 11 1.1.1.1.2.2 pgoyette #include <time.h> 12 1.1.1.1.2.2 pgoyette #include <openssl/rand.h> 13 1.1.1.1.2.2 pgoyette #include <openssl/ssl.h> 14 1.1.1.1.2.2 pgoyette #include <openssl/rsa.h> 15 1.1.1.1.2.2 pgoyette #include <openssl/dsa.h> 16 1.1.1.1.2.2 pgoyette #include <openssl/ec.h> 17 1.1.1.1.2.2 pgoyette #include <openssl/dh.h> 18 1.1.1.1.2.2 pgoyette #include <openssl/err.h> 19 1.1.1.1.2.2 pgoyette #include "fuzzer.h" 20 1.1.1.1.2.2 pgoyette 21 1.1.1.1.2.2 pgoyette #include "rand.inc" 22 1.1.1.1.2.2 pgoyette 23 1.1.1.1.2.2 pgoyette /* unused, to avoid warning. */ 24 1.1.1.1.2.2 pgoyette static int idx; 25 1.1.1.1.2.2 pgoyette 26 1.1.1.1.2.2 pgoyette #define FUZZTIME 1485898104 27 1.1.1.1.2.2 pgoyette 28 1.1.1.1.2.2 pgoyette #define TIME_IMPL(t) { if (t != NULL) *t = FUZZTIME; return FUZZTIME; } 29 1.1.1.1.2.2 pgoyette 30 1.1.1.1.2.2 pgoyette /* 31 1.1.1.1.2.2 pgoyette * This might not work in all cases (and definitely not on Windows 32 1.1.1.1.2.2 pgoyette * because of the way linkers are) and callees can still get the 33 1.1.1.1.2.2 pgoyette * current time instead of the fixed time. This will just result 34 1.1.1.1.2.2 pgoyette * in things not being fully reproducible and have a slightly 35 1.1.1.1.2.2 pgoyette * different coverage. 36 1.1.1.1.2.2 pgoyette */ 37 1.1.1.1.2.2 pgoyette #if !defined(_WIN32) 38 1.1.1.1.2.2 pgoyette time_t time(time_t *t) TIME_IMPL(t) 39 1.1.1.1.2.2 pgoyette #endif 40 1.1.1.1.2.2 pgoyette 41 1.1.1.1.2.2 pgoyette int FuzzerInitialize(int *argc, char ***argv) 42 1.1.1.1.2.2 pgoyette { 43 1.1.1.1.2.2 pgoyette STACK_OF(SSL_COMP) *comp_methods; 44 1.1.1.1.2.2 pgoyette 45 1.1.1.1.2.2 pgoyette OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS | OPENSSL_INIT_ASYNC, NULL); 46 1.1.1.1.2.2 pgoyette OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL); 47 1.1.1.1.2.2 pgoyette ERR_get_state(); 48 1.1.1.1.2.2 pgoyette CRYPTO_free_ex_index(0, -1); 49 1.1.1.1.2.2 pgoyette idx = SSL_get_ex_data_X509_STORE_CTX_idx(); 50 1.1.1.1.2.2 pgoyette FuzzerSetRand(); 51 1.1.1.1.2.2 pgoyette comp_methods = SSL_COMP_get_compression_methods(); 52 1.1.1.1.2.2 pgoyette if (comp_methods != NULL) 53 1.1.1.1.2.2 pgoyette sk_SSL_COMP_sort(comp_methods); 54 1.1.1.1.2.2 pgoyette 55 1.1.1.1.2.2 pgoyette return 1; 56 1.1.1.1.2.2 pgoyette } 57 1.1.1.1.2.2 pgoyette 58 1.1.1.1.2.2 pgoyette int FuzzerTestOneInput(const uint8_t *buf, size_t len) 59 1.1.1.1.2.2 pgoyette { 60 1.1.1.1.2.2 pgoyette SSL *client; 61 1.1.1.1.2.2 pgoyette BIO *in; 62 1.1.1.1.2.2 pgoyette BIO *out; 63 1.1.1.1.2.2 pgoyette SSL_CTX *ctx; 64 1.1.1.1.2.2 pgoyette 65 1.1.1.1.2.2 pgoyette if (len == 0) 66 1.1.1.1.2.2 pgoyette return 0; 67 1.1.1.1.2.2 pgoyette 68 1.1.1.1.2.2 pgoyette /* 69 1.1.1.1.2.2 pgoyette * TODO: use the ossltest engine (optionally?) to disable crypto checks. 70 1.1.1.1.2.2 pgoyette */ 71 1.1.1.1.2.2 pgoyette 72 1.1.1.1.2.2 pgoyette /* This only fuzzes the initial flow from the client so far. */ 73 1.1.1.1.2.2 pgoyette ctx = SSL_CTX_new(SSLv23_method()); 74 1.1.1.1.2.2 pgoyette 75 1.1.1.1.2.2 pgoyette client = SSL_new(ctx); 76 1.1.1.1.2.2 pgoyette OPENSSL_assert(SSL_set_min_proto_version(client, 0) == 1); 77 1.1.1.1.2.2 pgoyette OPENSSL_assert(SSL_set_cipher_list(client, "ALL:eNULL:@SECLEVEL=0") == 1); 78 1.1.1.1.2.2 pgoyette SSL_set_tlsext_host_name(client, "localhost"); 79 1.1.1.1.2.2 pgoyette in = BIO_new(BIO_s_mem()); 80 1.1.1.1.2.2 pgoyette out = BIO_new(BIO_s_mem()); 81 1.1.1.1.2.2 pgoyette SSL_set_bio(client, in, out); 82 1.1.1.1.2.2 pgoyette SSL_set_connect_state(client); 83 1.1.1.1.2.2 pgoyette OPENSSL_assert((size_t)BIO_write(in, buf, len) == len); 84 1.1.1.1.2.2 pgoyette if (SSL_do_handshake(client) == 1) { 85 1.1.1.1.2.2 pgoyette /* Keep reading application data until error or EOF. */ 86 1.1.1.1.2.2 pgoyette uint8_t tmp[1024]; 87 1.1.1.1.2.2 pgoyette for (;;) { 88 1.1.1.1.2.2 pgoyette if (SSL_read(client, tmp, sizeof(tmp)) <= 0) { 89 1.1.1.1.2.2 pgoyette break; 90 1.1.1.1.2.2 pgoyette } 91 1.1.1.1.2.2 pgoyette } 92 1.1.1.1.2.2 pgoyette } 93 1.1.1.1.2.2 pgoyette SSL_free(client); 94 1.1.1.1.2.2 pgoyette ERR_clear_error(); 95 1.1.1.1.2.2 pgoyette SSL_CTX_free(ctx); 96 1.1.1.1.2.2 pgoyette 97 1.1.1.1.2.2 pgoyette return 0; 98 1.1.1.1.2.2 pgoyette } 99 1.1.1.1.2.2 pgoyette 100 1.1.1.1.2.2 pgoyette void FuzzerCleanup(void) 101 1.1.1.1.2.2 pgoyette { 102 1.1.1.1.2.2 pgoyette } 103
Indexes created Mon May 04 00:23:20 UTC 2026