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openssl/test/exdatatest.c

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/*
* Copyright 2015-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <openssl/crypto.h>
#include "testutil.h"
static long saved_argl;
static void *saved_argp;
static int saved_idx;
static int saved_idx2;
static int saved_idx3;
static int gbl_result;
/*
* SIMPLE EX_DATA IMPLEMENTATION
* Apps explicitly set/get ex_data as needed
*/
static void exnew(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
int idx, long argl, void *argp)
{
if (!TEST_int_eq(idx, saved_idx)
|| !TEST_long_eq(argl, saved_argl)
|| !TEST_ptr_eq(argp, saved_argp)
|| !TEST_ptr_null(ptr))
gbl_result = 0;
}
static int exdup(CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from,
void **from_d, int idx, long argl, void *argp)
{
if (!TEST_int_eq(idx, saved_idx)
|| !TEST_long_eq(argl, saved_argl)
|| !TEST_ptr_eq(argp, saved_argp)
|| !TEST_ptr(from_d))
gbl_result = 0;
return 1;
}
static void exfree(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
int idx, long argl, void *argp)
{
if (!TEST_int_eq(idx, saved_idx)
|| !TEST_long_eq(argl, saved_argl)
|| !TEST_ptr_eq(argp, saved_argp))
gbl_result = 0;
}
/*
* PRE-ALLOCATED EX_DATA IMPLEMENTATION
* Extended data structure is allocated in exnew2/freed in exfree2
* Data is stored inside extended data structure
*/
typedef struct myobj_ex_data_st {
char *hello;
int new;
int dup;
} MYOBJ_EX_DATA;
static void exnew2(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
int idx, long argl, void *argp)
{
MYOBJ_EX_DATA *ex_data = OPENSSL_zalloc(sizeof(*ex_data));
if (!TEST_true(idx == saved_idx2 || idx == saved_idx3)
|| !TEST_long_eq(argl, saved_argl)
|| !TEST_ptr_eq(argp, saved_argp)
|| !TEST_ptr_null(ptr)
|| !TEST_ptr(ex_data)
|| !TEST_true(CRYPTO_set_ex_data(ad, idx, ex_data))) {
gbl_result = 0;
OPENSSL_free(ex_data);
} else {
ex_data->new = 1;
}
}
static int exdup2(CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from,
void **from_d, int idx, long argl, void *argp)
{
MYOBJ_EX_DATA **update_ex_data = (MYOBJ_EX_DATA**)from_d;
MYOBJ_EX_DATA *ex_data = NULL;
if (!TEST_true(idx == saved_idx2 || idx == saved_idx3)
|| !TEST_long_eq(argl, saved_argl)
|| !TEST_ptr_eq(argp, saved_argp)
|| !TEST_ptr(from_d)
|| !TEST_ptr(*update_ex_data)
|| !TEST_ptr(ex_data = CRYPTO_get_ex_data(to, idx))
|| !TEST_true(ex_data->new)) {
gbl_result = 0;
} else {
/* Copy hello over */
ex_data->hello = (*update_ex_data)->hello;
/* indicate this is a dup */
ex_data->dup = 1;
/* Keep my original ex_data */
*update_ex_data = ex_data;
}
return 1;
}
static void exfree2(void *parent, void *ptr, CRYPTO_EX_DATA *ad,
int idx, long argl, void *argp)
{
MYOBJ_EX_DATA *ex_data = CRYPTO_get_ex_data(ad, idx);
if (!TEST_true(idx == saved_idx2 || idx == saved_idx3)
|| !TEST_long_eq(argl, saved_argl)
|| !TEST_ptr_eq(argp, saved_argp)
|| !TEST_true(CRYPTO_set_ex_data(ad, idx, NULL)))
gbl_result = 0;
OPENSSL_free(ex_data);
}
typedef struct myobj_st {
CRYPTO_EX_DATA ex_data;
int id;
int st;
} MYOBJ;
static MYOBJ *MYOBJ_new(void)
{
static int count = 0;
MYOBJ *obj = OPENSSL_malloc(sizeof(*obj));
obj->id = ++count;
obj->st = CRYPTO_new_ex_data(CRYPTO_EX_INDEX_APP, obj, &obj->ex_data);
return obj;
}
static void MYOBJ_sethello(MYOBJ *obj, char *cp)
{
obj->st = CRYPTO_set_ex_data(&obj->ex_data, saved_idx, cp);
if (!TEST_int_eq(obj->st, 1))
gbl_result = 0;
}
static char *MYOBJ_gethello(MYOBJ *obj)
{
return CRYPTO_get_ex_data(&obj->ex_data, saved_idx);
}
static void MYOBJ_sethello2(MYOBJ *obj, char *cp)
{
MYOBJ_EX_DATA* ex_data = CRYPTO_get_ex_data(&obj->ex_data, saved_idx2);
if (TEST_ptr(ex_data))
ex_data->hello = cp;
else
obj->st = gbl_result = 0;
}
static char *MYOBJ_gethello2(MYOBJ *obj)
{
MYOBJ_EX_DATA* ex_data = CRYPTO_get_ex_data(&obj->ex_data, saved_idx2);
if (TEST_ptr(ex_data))
return ex_data->hello;
obj->st = gbl_result = 0;
return NULL;
}
static void MYOBJ_allochello3(MYOBJ *obj, char *cp)
{
MYOBJ_EX_DATA* ex_data = NULL;
if (TEST_ptr_null(ex_data = CRYPTO_get_ex_data(&obj->ex_data, saved_idx3))
&& TEST_true(CRYPTO_alloc_ex_data(CRYPTO_EX_INDEX_APP, obj,
&obj->ex_data, saved_idx3))
&& TEST_ptr(ex_data = CRYPTO_get_ex_data(&obj->ex_data, saved_idx3)))
ex_data->hello = cp;
else
obj->st = gbl_result = 0;
}
static char *MYOBJ_gethello3(MYOBJ *obj)
{
MYOBJ_EX_DATA* ex_data = CRYPTO_get_ex_data(&obj->ex_data, saved_idx3);
if (TEST_ptr(ex_data))
return ex_data->hello;
obj->st = gbl_result = 0;
return NULL;
}
static void MYOBJ_free(MYOBJ *obj)
{
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_APP, obj, &obj->ex_data);
OPENSSL_free(obj);
}
static MYOBJ *MYOBJ_dup(MYOBJ *in)
{
MYOBJ *obj = MYOBJ_new();
obj->st |= CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_APP, &obj->ex_data,
&in->ex_data);
return obj;
}
static int test_exdata(void)
{
MYOBJ *t1, *t2, *t3;
MYOBJ_EX_DATA *ex_data;
const char *cp;
char *p;
gbl_result = 1;
p = OPENSSL_strdup("hello world");
saved_argl = 21;
saved_argp = OPENSSL_malloc(1);
saved_idx = CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_APP,
saved_argl, saved_argp,
exnew, exdup, exfree);
saved_idx2 = CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_APP,
saved_argl, saved_argp,
exnew2, exdup2, exfree2);
t1 = MYOBJ_new();
t2 = MYOBJ_new();
if (!TEST_int_eq(t1->st, 1) || !TEST_int_eq(t2->st, 1))
return 0;
if (!TEST_ptr(CRYPTO_get_ex_data(&t1->ex_data, saved_idx2)))
return 0;
/*
* saved_idx3 differs from other indexes by being created after the exdata
* was initialized.
*/
saved_idx3 = CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_APP,
saved_argl, saved_argp,
exnew2, exdup2, exfree2);
if (!TEST_ptr_null(CRYPTO_get_ex_data(&t1->ex_data, saved_idx3)))
return 0;
MYOBJ_sethello(t1, p);
cp = MYOBJ_gethello(t1);
if (!TEST_ptr_eq(cp, p))
return 0;
MYOBJ_sethello2(t1, p);
cp = MYOBJ_gethello2(t1);
if (!TEST_ptr_eq(cp, p))
return 0;
MYOBJ_allochello3(t1, p);
cp = MYOBJ_gethello3(t1);
if (!TEST_ptr_eq(cp, p))
return 0;
cp = MYOBJ_gethello(t2);
if (!TEST_ptr_null(cp))
return 0;
cp = MYOBJ_gethello2(t2);
if (!TEST_ptr_null(cp))
return 0;
t3 = MYOBJ_dup(t1);
if (!TEST_int_eq(t3->st, 1))
return 0;
ex_data = CRYPTO_get_ex_data(&t3->ex_data, saved_idx2);
if (!TEST_ptr(ex_data))
return 0;
if (!TEST_int_eq(ex_data->dup, 1))
return 0;
cp = MYOBJ_gethello(t3);
if (!TEST_ptr_eq(cp, p))
return 0;
cp = MYOBJ_gethello2(t3);
if (!TEST_ptr_eq(cp, p))
return 0;
cp = MYOBJ_gethello3(t3);
if (!TEST_ptr_eq(cp, p))
return 0;
MYOBJ_free(t1);
MYOBJ_free(t2);
MYOBJ_free(t3);
OPENSSL_free(saved_argp);
OPENSSL_free(p);
if (gbl_result)
return 1;
else
return 0;
}
int setup_tests(void)
{
ADD_TEST(test_exdata);
return 1;
}
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