/*

 * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the OpenSSL license (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 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_int_eq(idx, saved_idx2)

        || !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, saved_idx2, 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 = CRYPTO_get_ex_data(to, saved_idx2);

    if (!TEST_int_eq(idx, saved_idx2)

        || !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)

        || !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, saved_idx2);

    OPENSSL_free(ex_data);

    if (!TEST_int_eq(idx, saved_idx2)

        || !TEST_long_eq(argl, saved_argl)

        || !TEST_ptr_eq(argp, saved_argp)

        || !TEST_ptr(ex_data)

        || !TEST_true(CRYPTO_set_ex_data(ad, saved_idx2, NULL)))

        gbl_result = 0;

}

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_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;

    if (!TEST_ptr(CRYPTO_get_ex_data(&t2->ex_data, saved_idx2)))

        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;

    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;

    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;

}