2 * Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved.
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
13 #include <openssl/crypto.h>
15 static long saved_argl;
16 static void *saved_argp;
18 static int saved_idx2;
21 * SIMPLE EX_DATA IMPLEMENTATION
22 * Apps explicitly set/get ex_data as needed
25 static void exnew(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
26 int idx, long argl, void *argp)
28 OPENSSL_assert(idx == saved_idx);
29 OPENSSL_assert(argl == saved_argl);
30 OPENSSL_assert(argp == saved_argp);
31 OPENSSL_assert(ptr == NULL);
34 static int exdup(CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from,
35 void *from_d, int idx, long argl, void *argp)
37 OPENSSL_assert(idx == saved_idx);
38 OPENSSL_assert(argl == saved_argl);
39 OPENSSL_assert(argp == saved_argp);
40 OPENSSL_assert(from_d != NULL);
44 static void exfree(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
45 int idx, long argl, void *argp)
47 OPENSSL_assert(idx == saved_idx);
48 OPENSSL_assert(argl == saved_argl);
49 OPENSSL_assert(argp == saved_argp);
53 * PRE-ALLOCATED EX_DATA IMPLEMENTATION
54 * Extended data structure is allocated in exnew2/freed in exfree2
55 * Data is stored inside extended data structure
58 typedef struct myobj_ex_data_st {
64 static void exnew2(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
65 int idx, long argl, void *argp)
68 MYOBJ_EX_DATA *ex_data;
70 OPENSSL_assert(idx == saved_idx2);
71 OPENSSL_assert(argl == saved_argl);
72 OPENSSL_assert(argp == saved_argp);
73 OPENSSL_assert(ptr == NULL);
75 ex_data = OPENSSL_zalloc(sizeof(*ex_data));
76 OPENSSL_assert(ex_data != NULL);
77 ret = CRYPTO_set_ex_data(ad, saved_idx2, ex_data);
83 static int exdup2(CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from,
84 void *from_d, int idx, long argl, void *argp)
86 MYOBJ_EX_DATA **update_ex_data = (MYOBJ_EX_DATA**)from_d;
87 MYOBJ_EX_DATA *ex_data = CRYPTO_get_ex_data(to, saved_idx2);
89 OPENSSL_assert(idx == saved_idx2);
90 OPENSSL_assert(argl == saved_argl);
91 OPENSSL_assert(argp == saved_argp);
92 OPENSSL_assert(from_d != NULL);
93 OPENSSL_assert(*update_ex_data != NULL);
94 OPENSSL_assert(ex_data != NULL);
95 OPENSSL_assert(ex_data->new);
98 ex_data->hello = (*update_ex_data)->hello;
99 /* indicate this is a dup */
101 /* Keep my original ex_data */
102 *update_ex_data = ex_data;
106 static void exfree2(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
107 int idx, long argl, void *argp)
109 MYOBJ_EX_DATA *ex_data = CRYPTO_get_ex_data(ad, saved_idx2);
112 OPENSSL_assert(ex_data != NULL);
113 OPENSSL_free(ex_data);
114 OPENSSL_assert(idx == saved_idx2);
115 OPENSSL_assert(argl == saved_argl);
116 OPENSSL_assert(argp == saved_argp);
117 ret = CRYPTO_set_ex_data(ad, saved_idx2, NULL);
121 typedef struct myobj_st {
122 CRYPTO_EX_DATA ex_data;
127 static MYOBJ *MYOBJ_new()
129 static int count = 0;
130 MYOBJ *obj = OPENSSL_malloc(sizeof(*obj));
133 obj->st = CRYPTO_new_ex_data(CRYPTO_EX_INDEX_APP, obj, &obj->ex_data);
134 OPENSSL_assert(obj->st != 0);
138 static void MYOBJ_sethello(MYOBJ *obj, char *cp)
140 obj->st = CRYPTO_set_ex_data(&obj->ex_data, saved_idx, cp);
141 OPENSSL_assert(obj->st != 0);
144 static char *MYOBJ_gethello(MYOBJ *obj)
146 return CRYPTO_get_ex_data(&obj->ex_data, saved_idx);
149 static void MYOBJ_sethello2(MYOBJ *obj, char *cp)
151 MYOBJ_EX_DATA* ex_data = CRYPTO_get_ex_data(&obj->ex_data, saved_idx2);
158 static char *MYOBJ_gethello2(MYOBJ *obj)
160 MYOBJ_EX_DATA* ex_data = CRYPTO_get_ex_data(&obj->ex_data, saved_idx2);
162 return ex_data->hello;
168 static void MYOBJ_free(MYOBJ *obj)
170 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_APP, obj, &obj->ex_data);
174 static MYOBJ *MYOBJ_dup(MYOBJ *in)
176 MYOBJ *obj = MYOBJ_new();
178 obj->st = CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_APP, &obj->ex_data,
180 OPENSSL_assert(obj->st != 0);
187 MYOBJ_EX_DATA *ex_data;
191 p = OPENSSL_strdup("hello world");
193 saved_argp = OPENSSL_malloc(1);
194 saved_idx = CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_APP,
195 saved_argl, saved_argp,
196 exnew, exdup, exfree);
197 saved_idx2 = CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_APP,
198 saved_argl, saved_argp,
199 exnew2, exdup2, exfree2);
202 OPENSSL_assert(t1->st && t2->st);
203 ex_data = CRYPTO_get_ex_data(&t1->ex_data, saved_idx2);
204 OPENSSL_assert(ex_data != NULL);
205 ex_data = CRYPTO_get_ex_data(&t2->ex_data, saved_idx2);
206 OPENSSL_assert(ex_data != NULL);
207 MYOBJ_sethello(t1, p);
208 cp = MYOBJ_gethello(t1);
209 OPENSSL_assert(cp == p);
210 cp = MYOBJ_gethello(t2);
211 OPENSSL_assert(cp == NULL);
212 MYOBJ_sethello2(t1, p);
213 cp = MYOBJ_gethello2(t1);
214 OPENSSL_assert(cp == p);
215 OPENSSL_assert(t1->st);
216 cp = MYOBJ_gethello2(t2);
217 OPENSSL_assert(cp == NULL);
218 OPENSSL_assert(t2->st);
220 ex_data = CRYPTO_get_ex_data(&t3->ex_data, saved_idx2);
221 OPENSSL_assert(ex_data != NULL);
222 OPENSSL_assert(ex_data->dup);
223 cp = MYOBJ_gethello(t3);
224 OPENSSL_assert(cp == p);
225 cp = MYOBJ_gethello2(t3);
226 OPENSSL_assert(cp == p);
227 OPENSSL_assert(t3->st);
231 OPENSSL_free(saved_argp);