test/shlibloadtest.c

   1 /*
   2  * Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <stdlib.h>
  13 #include <openssl/opensslv.h>
  14 #include <openssl/ssl.h>
  15 #include <openssl/ossl_typ.h>
  16 #include "testutil.h"
  17
  18 typedef const SSL_METHOD * (*TLS_method_t)(void);
  19 typedef SSL_CTX * (*SSL_CTX_new_t)(const SSL_METHOD *meth);
  20 typedef void (*SSL_CTX_free_t)(SSL_CTX *);
  21 typedef unsigned long (*ERR_get_error_t)(void);
  22 typedef unsigned long (*OpenSSL_version_num_t)(void);
  23
  24 typedef enum test_types_en {
  25     CRYPTO_FIRST,
  26     SSL_FIRST,
  27     JUST_CRYPTO
  28 } TEST_TYPE;
  29
  30 static TEST_TYPE test_type;
  31 static const char *path_crypto;
  32 static const char *path_ssl;
  33
  34 #ifdef DSO_DLFCN
  35
  36 # include <dlfcn.h>
  37
  38 # define SHLIB_INIT NULL
  39
  40 typedef void *SHLIB;
  41 typedef void *SHLIB_SYM;
  42
  43 static int shlib_load(const char *filename, SHLIB *lib)
  44 {
  45     *lib = dlopen(filename, RTLD_GLOBAL | RTLD_LAZY);
  46     return *lib == NULL ? 0 : 1;
  47 }
  48
  49 static int shlib_sym(SHLIB lib, const char *symname, SHLIB_SYM *sym)
  50 {
  51     *sym = dlsym(lib, symname);
  52     return *sym != NULL;
  53 }
  54
  55 static int shlib_close(SHLIB lib)
  56 {
  57     return dlclose(lib) != 0 ? 0 : 1;
  58 }
  59 #endif
  60
  61 #ifdef DSO_WIN32
  62
  63 # include <windows.h>
  64
  65 # define SHLIB_INIT 0
  66
  67 typedef HINSTANCE SHLIB;
  68 typedef void *SHLIB_SYM;
  69
  70 static int shlib_load(const char *filename, SHLIB *lib)
  71 {
  72     *lib = LoadLibraryA(filename);
  73     return *lib == NULL ? 0 : 1;
  74 }
  75
  76 static int shlib_sym(SHLIB lib, const char *symname, SHLIB_SYM *sym)
  77 {
  78     *sym = (SHLIB_SYM)GetProcAddress(lib, symname);
  79     return *sym != NULL;
  80 }
  81
  82 static int shlib_close(SHLIB lib)
  83 {
  84     return FreeLibrary(lib) == 0 ? 0 : 1;
  85 }
  86 #endif
  87
  88
  89 #if defined(DSO_DLFCN) || defined(DSO_WIN32)
  90
  91 static int test_lib(void)
  92 {
  93     SHLIB ssllib = SHLIB_INIT;
  94     SHLIB cryptolib = SHLIB_INIT;
  95     SSL_CTX *ctx;
  96     union {
  97         void (*func)(void);
  98         SHLIB_SYM sym;
  99     } symbols[3];
 100     TLS_method_t myTLS_method;
 101     SSL_CTX_new_t mySSL_CTX_new;
 102     SSL_CTX_free_t mySSL_CTX_free;
 103     ERR_get_error_t myERR_get_error;
 104     OpenSSL_version_num_t myOpenSSL_version_num;
 105     int result = 0;
 106
 107     switch (test_type) {
 108     case JUST_CRYPTO:
 109         if (!TEST_true(shlib_load(path_crypto, &cryptolib)))
 110             goto end;
 111         break;
 112     case CRYPTO_FIRST:
 113         if (!TEST_true(shlib_load(path_crypto, &cryptolib))
 114                 || !TEST_true(shlib_load(path_ssl, &ssllib)))
 115             goto end;
 116         break;
 117     case SSL_FIRST:
 118         if (!TEST_true(shlib_load(path_ssl, &ssllib))
 119                 || !TEST_true(shlib_load(path_crypto, &cryptolib)))
 120             goto end;
 121         break;
 122     }
 123
 124     if (test_type != JUST_CRYPTO) {
 125         if (!TEST_true(shlib_sym(ssllib, "TLS_method", &symbols[0].sym))
 126                 || !TEST_true(shlib_sym(ssllib, "SSL_CTX_new", &symbols[1].sym))
 127                 || !TEST_true(shlib_sym(ssllib, "SSL_CTX_free", &symbols[2].sym)))
 128             goto end;
 129         myTLS_method = (TLS_method_t)symbols[0].func;
 130         mySSL_CTX_new = (SSL_CTX_new_t)symbols[1].func;
 131         mySSL_CTX_free = (SSL_CTX_free_t)symbols[2].func;
 132         if (!TEST_ptr(ctx = mySSL_CTX_new(myTLS_method())))
 133             goto end;
 134         mySSL_CTX_free(ctx);
 135     }
 136
 137     if (!TEST_true(shlib_sym(cryptolib, "ERR_get_error", &symbols[0].sym))
 138             || !TEST_true(shlib_sym(cryptolib, "OpenSSL_version_num",
 139                                     &symbols[1].sym)))
 140         goto end;
 141     myERR_get_error = (ERR_get_error_t)symbols[0].func;
 142     if (!TEST_int_eq(myERR_get_error(), 0))
 143         goto end;
 144     myOpenSSL_version_num = (OpenSSL_version_num_t)symbols[1].func;
 145     if (!TEST_int_eq(myOpenSSL_version_num(), OPENSSL_VERSION_NUMBER))
 146         goto end;
 147
 148     switch (test_type) {
 149     case JUST_CRYPTO:
 150         if (!TEST_true(shlib_close(cryptolib)))
 151             goto end;
 152         break;
 153     case CRYPTO_FIRST:
 154         if (!TEST_true(shlib_close(cryptolib))
 155                 || !TEST_true(shlib_close(ssllib)))
 156             goto end;
 157         break;
 158     case SSL_FIRST:
 159         if (!TEST_true(shlib_close(ssllib))
 160                 || !TEST_true(shlib_close(cryptolib)))
 161             goto end;
 162         break;
 163     }
 164
 165     result = 1;
 166 end:
 167     return result;
 168 }
 169 #endif
 170
 171
 172 int setup_tests(void)
 173 {
 174     const char *p = test_get_argument(0);
 175
 176     if (strcmp(p, "-crypto_first") == 0) {
 177         test_type = CRYPTO_FIRST;
 178     } else if (strcmp(p, "-ssl_first") == 0) {
 179         test_type = SSL_FIRST;
 180     } else if (strcmp(p, "-just_crypto") == 0) {
 181         test_type = JUST_CRYPTO;
 182     } else {
 183         TEST_error("Unrecognised argument");
 184         return 0;
 185     }
 186     if (!TEST_ptr(path_crypto = test_get_argument(1))
 187             || !TEST_ptr(path_ssl = test_get_argument(2)))
 188         return 0;
 189
 190 #if defined(DSO_DLFCN) || defined(DSO_WIN32)
 191     ADD_TEST(test_lib);
 192 #endif
 193     return 1;
 194 }