xref: /openssl/crypto/indicator_core.c (revision 0557d6c6) 
1 /*
2  * Copyright 2024 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the Apache License 2.0 (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 <openssl/indicator.h>
11 #include <openssl/core_names.h>
12 #include <openssl/params.h>
13 #include "internal/cryptlib.h"
14 #include "crypto/context.h"
15 
16 typedef struct indicator_cb_st
17 {
18     OSSL_INDICATOR_CALLBACK *cb;
19 } INDICATOR_CB;
20 
ossl_indicator_set_callback_new(OSSL_LIB_CTX * ctx)21 void *ossl_indicator_set_callback_new(OSSL_LIB_CTX *ctx)
22 {
23     INDICATOR_CB *cb;
24 
25     cb = OPENSSL_zalloc(sizeof(*cb));
26     return cb;
27 }
28 
ossl_indicator_set_callback_free(void * cb)29 void ossl_indicator_set_callback_free(void *cb)
30 {
31     OPENSSL_free(cb);
32 }
33 
get_indicator_callback(OSSL_LIB_CTX * libctx)34 static INDICATOR_CB *get_indicator_callback(OSSL_LIB_CTX *libctx)
35 {
36     return ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_INDICATOR_CB_INDEX);
37 }
38 
OSSL_INDICATOR_set_callback(OSSL_LIB_CTX * libctx,OSSL_INDICATOR_CALLBACK * cb)39 void OSSL_INDICATOR_set_callback(OSSL_LIB_CTX *libctx,
40                                  OSSL_INDICATOR_CALLBACK *cb)
41 {
42     INDICATOR_CB *icb = get_indicator_callback(libctx);
43 
44     if (icb != NULL)
45         icb->cb = cb;
46 }
47 
OSSL_INDICATOR_get_callback(OSSL_LIB_CTX * libctx,OSSL_INDICATOR_CALLBACK ** cb)48 void OSSL_INDICATOR_get_callback(OSSL_LIB_CTX *libctx,
49                                  OSSL_INDICATOR_CALLBACK **cb)
50 {
51     INDICATOR_CB *icb = get_indicator_callback(libctx);
52 
53     if (cb != NULL)
54         *cb = (icb != NULL ? icb->cb : NULL);
55 }
56