2 * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
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
11 #include <openssl/core_numbers.h>
12 #include "internal/cryptlib.h"
15 static OSSL_BIO_new_file_fn *c_bio_new_file = NULL;
16 static OSSL_BIO_new_membuf_fn *c_bio_new_membuf = NULL;
17 static OSSL_BIO_read_ex_fn *c_bio_read_ex = NULL;
18 static OSSL_BIO_write_ex_fn *c_bio_write_ex = NULL;
19 static OSSL_BIO_free_fn *c_bio_free = NULL;
20 static OSSL_BIO_vprintf_fn *c_bio_vprintf = NULL;
22 int ossl_prov_bio_from_dispatch(const OSSL_DISPATCH *fns)
24 for (; fns->function_id != 0; fns++) {
25 switch (fns->function_id) {
26 case OSSL_FUNC_BIO_NEW_FILE:
27 if (c_bio_new_file == NULL)
28 c_bio_new_file = OSSL_get_BIO_new_file(fns);
30 case OSSL_FUNC_BIO_NEW_MEMBUF:
31 if (c_bio_new_membuf == NULL)
32 c_bio_new_membuf = OSSL_get_BIO_new_membuf(fns);
34 case OSSL_FUNC_BIO_READ_EX:
35 if (c_bio_read_ex == NULL)
36 c_bio_read_ex = OSSL_get_BIO_read_ex(fns);
38 case OSSL_FUNC_BIO_WRITE_EX:
39 if (c_bio_write_ex == NULL)
40 c_bio_write_ex = OSSL_get_BIO_write_ex(fns);
42 case OSSL_FUNC_BIO_FREE:
43 if (c_bio_free == NULL)
44 c_bio_free = OSSL_get_BIO_free(fns);
46 case OSSL_FUNC_BIO_VPRINTF:
47 if (c_bio_vprintf == NULL)
48 c_bio_vprintf = OSSL_get_BIO_vprintf(fns);
56 OSSL_CORE_BIO *ossl_prov_bio_new_file(const char *filename, const char *mode)
58 if (c_bio_new_file == NULL)
60 return c_bio_new_file(filename, mode);
63 OSSL_CORE_BIO *ossl_prov_bio_new_membuf(const char *filename, int len)
65 if (c_bio_new_membuf == NULL)
67 return c_bio_new_membuf(filename, len);
70 int ossl_prov_bio_read_ex(OSSL_CORE_BIO *bio, void *data, size_t data_len,
73 if (c_bio_read_ex == NULL)
75 return c_bio_read_ex(bio, data, data_len, bytes_read);
78 int ossl_prov_bio_write_ex(OSSL_CORE_BIO *bio, const void *data, size_t data_len,
81 if (c_bio_write_ex == NULL)
83 return c_bio_write_ex(bio, data, data_len, written);
86 int ossl_prov_bio_free(OSSL_CORE_BIO *bio)
88 if (c_bio_free == NULL)
90 return c_bio_free(bio);
93 int ossl_prov_bio_vprintf(OSSL_CORE_BIO *bio, const char *format, va_list ap)
95 if (c_bio_vprintf == NULL)
97 return c_bio_vprintf(bio, format, ap);
100 int ossl_prov_bio_printf(OSSL_CORE_BIO *bio, const char *format, ...)
105 va_start(ap, format);
106 ret = ossl_prov_bio_vprintf(bio, format, ap);
114 /* No direct BIO support in the FIPS module */
116 static int bio_core_read_ex(BIO *bio, char *data, size_t data_len,
119 return ossl_prov_bio_read_ex(BIO_get_data(bio), data, data_len, bytes_read);
122 static int bio_core_write_ex(BIO *bio, const char *data, size_t data_len,
125 return ossl_prov_bio_write_ex(BIO_get_data(bio), data, data_len, written);
128 static long bio_core_ctrl(BIO *bio, int cmd, long num, void *ptr)
130 /* We don't support this */
135 static int bio_core_gets(BIO *bio, char *buf, int size)
137 /* We don't support this */
142 static int bio_core_puts(BIO *bio, const char *str)
144 /* We don't support this */
149 static int bio_core_new(BIO *bio)
151 BIO_set_init(bio, 1);
156 static int bio_core_free(BIO *bio)
158 BIO_set_init(bio, 0);
163 BIO_METHOD *bio_prov_init_bio_method(void)
165 BIO_METHOD *corebiometh = NULL;
167 corebiometh = BIO_meth_new(BIO_TYPE_CORE_TO_PROV, "BIO to Core filter");
168 if (corebiometh == NULL
169 || !BIO_meth_set_write_ex(corebiometh, bio_core_write_ex)
170 || !BIO_meth_set_read_ex(corebiometh, bio_core_read_ex)
171 || !BIO_meth_set_puts(corebiometh, bio_core_puts)
172 || !BIO_meth_set_gets(corebiometh, bio_core_gets)
173 || !BIO_meth_set_ctrl(corebiometh, bio_core_ctrl)
174 || !BIO_meth_set_create(corebiometh, bio_core_new)
175 || !BIO_meth_set_destroy(corebiometh, bio_core_free)) {
176 BIO_meth_free(corebiometh);
183 BIO *bio_new_from_core_bio(PROV_CTX *provctx, OSSL_CORE_BIO *corebio)
186 BIO_METHOD *corebiometh = PROV_CTX_get0_core_bio_method(provctx);
188 if (corebiometh == NULL)
191 outbio = BIO_new(corebiometh);
193 BIO_set_data(outbio, corebio);