test/exdatatest.c

   1 /*
   2  * Copyright 2015-2017 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/crypto.h>
  14
  15 #include "testutil.h"
  16
  17 static long saved_argl;
  18 static void *saved_argp;
  19 static int saved_idx;
  20 static int saved_idx2;
  21 static int gbl_result;
  22
  23 /*
  24  * SIMPLE EX_DATA IMPLEMENTATION
  25  * Apps explicitly set/get ex_data as needed
  26  */
  27
  28 static void exnew(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
  29           int idx, long argl, void *argp)
  30 {
  31     if (!TEST_int_eq(idx, saved_idx)
  32         || !TEST_long_eq(argl, saved_argl)
  33         || !TEST_ptr_eq(argp, saved_argp)
  34         || !TEST_ptr_null(ptr))
  35         gbl_result = 0;
  36 }
  37
  38 static int exdup(CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from,
  39           void *from_d, int idx, long argl, void *argp)
  40 {
  41     if (!TEST_int_eq(idx, saved_idx)
  42         || !TEST_long_eq(argl, saved_argl)
  43         || !TEST_ptr_eq(argp, saved_argp)
  44         || !TEST_ptr(from_d))
  45         gbl_result = 0;
  46     return 1;
  47 }
  48
  49 static void exfree(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
  50             int idx, long argl, void *argp)
  51 {
  52     if (!TEST_int_eq(idx, saved_idx)
  53         || !TEST_long_eq(argl, saved_argl)
  54         || !TEST_ptr_eq(argp, saved_argp))
  55         gbl_result = 0;
  56 }
  57
  58 /*
  59  * PRE-ALLOCATED EX_DATA IMPLEMENTATION
  60  * Extended data structure is allocated in exnew2/freed in exfree2
  61  * Data is stored inside extended data structure
  62  */
  63
  64 typedef struct myobj_ex_data_st {
  65     char *hello;
  66     int new;
  67     int dup;
  68 } MYOBJ_EX_DATA;
  69
  70 static void exnew2(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
  71           int idx, long argl, void *argp)
  72 {
  73     MYOBJ_EX_DATA *ex_data = OPENSSL_zalloc(sizeof(*ex_data));
  74     if (!TEST_int_eq(idx, saved_idx2)
  75         || !TEST_long_eq(argl, saved_argl)
  76         || !TEST_ptr_eq(argp, saved_argp)
  77         || !TEST_ptr_null(ptr)
  78         || !TEST_ptr(ex_data)
  79         || !TEST_true(CRYPTO_set_ex_data(ad, saved_idx2, ex_data))) {
  80         gbl_result = 0;
  81         OPENSSL_free(ex_data);
  82     } else {
  83         ex_data->new = 1;
  84     }
  85 }
  86
  87 static int exdup2(CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from,
  88           void *from_d, int idx, long argl, void *argp)
  89 {
  90     MYOBJ_EX_DATA **update_ex_data = (MYOBJ_EX_DATA**)from_d;
  91     MYOBJ_EX_DATA *ex_data = CRYPTO_get_ex_data(to, saved_idx2);
  92     if (!TEST_int_eq(idx, saved_idx2)
  93         || !TEST_long_eq(argl, saved_argl)
  94         || !TEST_ptr_eq(argp, saved_argp)
  95         || !TEST_ptr(from_d)
  96         || !TEST_ptr(*update_ex_data)
  97         || !TEST_ptr(ex_data)
  98         || !TEST_true(ex_data->new)) {
  99         gbl_result = 0;
 100     } else {
 101         /* Copy hello over */
 102         ex_data->hello = (*update_ex_data)->hello;
 103         /* indicate this is a dup */
 104         ex_data->dup = 1;
 105         /* Keep my original ex_data */
 106         *update_ex_data = ex_data;
 107     }
 108     return 1;
 109 }
 110
 111 static void exfree2(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
 112             int idx, long argl, void *argp)
 113 {
 114     MYOBJ_EX_DATA *ex_data = CRYPTO_get_ex_data(ad, saved_idx2);
 115     OPENSSL_free(ex_data);
 116     if (!TEST_int_eq(idx, saved_idx2)
 117         || !TEST_long_eq(argl, saved_argl)
 118         || !TEST_ptr_eq(argp, saved_argp)
 119         || !TEST_ptr(ex_data)
 120         || !TEST_true(CRYPTO_set_ex_data(ad, saved_idx2, NULL)))
 121         gbl_result = 0;
 122 }
 123
 124 typedef struct myobj_st {
 125     CRYPTO_EX_DATA ex_data;
 126     int id;
 127     int st;
 128 } MYOBJ;
 129
 130 static MYOBJ *MYOBJ_new(void)
 131 {
 132     static int count = 0;
 133     MYOBJ *obj = OPENSSL_malloc(sizeof(*obj));
 134
 135     obj->id = ++count;
 136     obj->st = CRYPTO_new_ex_data(CRYPTO_EX_INDEX_APP, obj, &obj->ex_data);
 137     return obj;
 138 }
 139
 140 static void MYOBJ_sethello(MYOBJ *obj, char *cp)
 141 {
 142     obj->st = CRYPTO_set_ex_data(&obj->ex_data, saved_idx, cp);
 143     if (!TEST_int_eq(obj->st, 1))
 144         gbl_result = 0;
 145 }
 146
 147 static char *MYOBJ_gethello(MYOBJ *obj)
 148 {
 149     return CRYPTO_get_ex_data(&obj->ex_data, saved_idx);
 150 }
 151
 152 static void MYOBJ_sethello2(MYOBJ *obj, char *cp)
 153 {
 154     MYOBJ_EX_DATA* ex_data = CRYPTO_get_ex_data(&obj->ex_data, saved_idx2);
 155     if (TEST_ptr(ex_data))
 156         ex_data->hello = cp;
 157     else
 158         obj->st = gbl_result = 0;
 159 }
 160
 161 static char *MYOBJ_gethello2(MYOBJ *obj)
 162 {
 163     MYOBJ_EX_DATA* ex_data = CRYPTO_get_ex_data(&obj->ex_data, saved_idx2);
 164     if (TEST_ptr(ex_data))
 165         return ex_data->hello;
 166
 167     obj->st = gbl_result = 0;
 168     return NULL;
 169 }
 170
 171 static void MYOBJ_free(MYOBJ *obj)
 172 {
 173     CRYPTO_free_ex_data(CRYPTO_EX_INDEX_APP, obj, &obj->ex_data);
 174     OPENSSL_free(obj);
 175 }
 176
 177 static MYOBJ *MYOBJ_dup(MYOBJ *in)
 178 {
 179     MYOBJ *obj = MYOBJ_new();
 180
 181     obj->st |= CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_APP, &obj->ex_data,
 182                                  &in->ex_data);
 183     return obj;
 184 }
 185
 186 static int test_exdata(void)
 187 {
 188     MYOBJ *t1, *t2, *t3;
 189     MYOBJ_EX_DATA *ex_data;
 190     const char *cp;
 191     char *p;
 192
 193     gbl_result = 1;
 194
 195     p = OPENSSL_strdup("hello world");
 196     saved_argl = 21;
 197     saved_argp = OPENSSL_malloc(1);
 198     saved_idx = CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_APP,
 199                                         saved_argl, saved_argp,
 200                                         exnew, exdup, exfree);
 201     saved_idx2 = CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_APP,
 202                                          saved_argl, saved_argp,
 203                                          exnew2, exdup2, exfree2);
 204     t1 = MYOBJ_new();
 205     t2 = MYOBJ_new();
 206     if (!TEST_int_eq(t1->st, 1) || !TEST_int_eq(t2->st, 1))
 207         return 0;
 208     if (!TEST_ptr(CRYPTO_get_ex_data(&t1->ex_data, saved_idx2)))
 209         return 0;
 210     if (!TEST_ptr(CRYPTO_get_ex_data(&t2->ex_data, saved_idx2)))
 211         return 0;
 212
 213     MYOBJ_sethello(t1, p);
 214     cp = MYOBJ_gethello(t1);
 215     if (!TEST_ptr_eq(cp, p))
 216         return 0;
 217
 218     MYOBJ_sethello2(t1, p);
 219     cp = MYOBJ_gethello2(t1);
 220     if (!TEST_ptr_eq(cp, p))
 221         return 0;
 222
 223     cp = MYOBJ_gethello(t2);
 224     if (!TEST_ptr_null(cp))
 225         return 0;
 226
 227     cp = MYOBJ_gethello2(t2);
 228     if (!TEST_ptr_null(cp))
 229         return 0;
 230
 231     t3 = MYOBJ_dup(t1);
 232     if (!TEST_int_eq(t3->st, 1))
 233         return 0;
 234
 235     ex_data = CRYPTO_get_ex_data(&t3->ex_data, saved_idx2);
 236     if (!TEST_ptr(ex_data))
 237         return 0;
 238     if (!TEST_int_eq(ex_data->dup, 1))
 239         return 0;
 240
 241     cp = MYOBJ_gethello(t3);
 242     if (!TEST_ptr_eq(cp, p))
 243         return 0;
 244
 245     cp = MYOBJ_gethello2(t3);
 246     if (!TEST_ptr_eq(cp, p))
 247         return 0;
 248
 249     MYOBJ_free(t1);
 250     MYOBJ_free(t2);
 251     MYOBJ_free(t3);
 252     OPENSSL_free(saved_argp);
 253     OPENSSL_free(p);
 254
 255     if (gbl_result)
 256       return 1;
 257     else
 258       return 0;
 259 }
 260
 261 int setup_tests(void)
 262 {
 263     ADD_TEST(test_exdata);
 264     return 1;
 265 }