| /* |
| * Copyright 2016-2022 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 |
| */ |
| |
| #ifndef OSSL_INTERNAL_BIO_H |
| # define OSSL_INTERNAL_BIO_H |
| # pragma once |
| |
| # include <openssl/core.h> |
| # include <openssl/bio.h> |
| |
| struct bio_method_st { |
| int type; |
| char *name; |
| int (*bwrite) (BIO *, const char *, size_t, size_t *); |
| int (*bwrite_old) (BIO *, const char *, int); |
| int (*bread) (BIO *, char *, size_t, size_t *); |
| int (*bread_old) (BIO *, char *, int); |
| int (*bputs) (BIO *, const char *); |
| int (*bgets) (BIO *, char *, int); |
| long (*ctrl) (BIO *, int, long, void *); |
| int (*create) (BIO *); |
| int (*destroy) (BIO *); |
| long (*callback_ctrl) (BIO *, int, BIO_info_cb *); |
| }; |
| |
| void bio_free_ex_data(BIO *bio); |
| void bio_cleanup(void); |
| |
| |
| /* Old style to new style BIO_METHOD conversion functions */ |
| int bwrite_conv(BIO *bio, const char *data, size_t datal, size_t *written); |
| int bread_conv(BIO *bio, char *data, size_t datal, size_t *read); |
| |
| /* Changes to these internal BIOs must also update include/openssl/bio.h */ |
| # define BIO_CTRL_SET_KTLS 72 |
| # define BIO_CTRL_SET_KTLS_TX_SEND_CTRL_MSG 74 |
| # define BIO_CTRL_CLEAR_KTLS_TX_CTRL_MSG 75 |
| |
| /* |
| * This is used with socket BIOs: |
| * BIO_FLAGS_KTLS_TX means we are using ktls with this BIO for sending. |
| * BIO_FLAGS_KTLS_TX_CTRL_MSG means we are about to send a ctrl message next. |
| * BIO_FLAGS_KTLS_RX means we are using ktls with this BIO for receiving. |
| */ |
| # define BIO_FLAGS_KTLS_TX_CTRL_MSG 0x1000 |
| # define BIO_FLAGS_KTLS_RX 0x2000 |
| # define BIO_FLAGS_KTLS_TX 0x4000 |
| |
| /* KTLS related controls and flags */ |
| # define BIO_set_ktls_flag(b, is_tx) \ |
| BIO_set_flags(b, (is_tx) ? BIO_FLAGS_KTLS_TX : BIO_FLAGS_KTLS_RX) |
| # define BIO_should_ktls_flag(b, is_tx) \ |
| BIO_test_flags(b, (is_tx) ? BIO_FLAGS_KTLS_TX : BIO_FLAGS_KTLS_RX) |
| # define BIO_set_ktls_ctrl_msg_flag(b) \ |
| BIO_set_flags(b, BIO_FLAGS_KTLS_TX_CTRL_MSG) |
| # define BIO_should_ktls_ctrl_msg_flag(b) \ |
| BIO_test_flags(b, BIO_FLAGS_KTLS_TX_CTRL_MSG) |
| # define BIO_clear_ktls_ctrl_msg_flag(b) \ |
| BIO_clear_flags(b, BIO_FLAGS_KTLS_TX_CTRL_MSG) |
| |
| # define BIO_set_ktls(b, keyblob, is_tx) \ |
| BIO_ctrl(b, BIO_CTRL_SET_KTLS, is_tx, keyblob) |
| # define BIO_set_ktls_ctrl_msg(b, record_type) \ |
| BIO_ctrl(b, BIO_CTRL_SET_KTLS_TX_SEND_CTRL_MSG, record_type, NULL) |
| # define BIO_clear_ktls_ctrl_msg(b) \ |
| BIO_ctrl(b, BIO_CTRL_CLEAR_KTLS_TX_CTRL_MSG, 0, NULL) |
| |
| /* Functions to allow the core to offer the CORE_BIO type to providers */ |
| OSSL_CORE_BIO *ossl_core_bio_new_from_bio(BIO *bio); |
| OSSL_CORE_BIO *ossl_core_bio_new_file(const char *filename, const char *mode); |
| OSSL_CORE_BIO *ossl_core_bio_new_mem_buf(const void *buf, int len); |
| int ossl_core_bio_read_ex(OSSL_CORE_BIO *cb, void *data, size_t dlen, |
| size_t *readbytes); |
| int ossl_core_bio_write_ex(OSSL_CORE_BIO *cb, const void *data, size_t dlen, |
| size_t *written); |
| int ossl_core_bio_gets(OSSL_CORE_BIO *cb, char *buf, int size); |
| int ossl_core_bio_puts(OSSL_CORE_BIO *cb, const char *buf); |
| long ossl_core_bio_ctrl(OSSL_CORE_BIO *cb, int cmd, long larg, void *parg); |
| int ossl_core_bio_up_ref(OSSL_CORE_BIO *cb); |
| int ossl_core_bio_free(OSSL_CORE_BIO *cb); |
| int ossl_core_bio_vprintf(OSSL_CORE_BIO *cb, const char *format, va_list args); |
| |
| int ossl_bio_init_core(OSSL_LIB_CTX *libctx, const OSSL_DISPATCH *fns); |
| |
| #endif |