1 | /* |
2 | * Copyright 2016-2018 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 | #ifndef OSSL_INTERNAL_BIO_H |
11 | # define OSSL_INTERNAL_BIO_H |
12 | |
13 | #include <openssl/bio.h> |
14 | |
15 | struct bio_method_st { |
16 | int type; |
17 | char *name; |
18 | int (*bwrite) (BIO *, const char *, size_t, size_t *); |
19 | int (*bwrite_old) (BIO *, const char *, int); |
20 | int (*bread) (BIO *, char *, size_t, size_t *); |
21 | int (*bread_old) (BIO *, char *, int); |
22 | int (*bputs) (BIO *, const char *); |
23 | int (*bgets) (BIO *, char *, int); |
24 | long (*ctrl) (BIO *, int, long, void *); |
25 | int (*create) (BIO *); |
26 | int (*destroy) (BIO *); |
27 | long (*callback_ctrl) (BIO *, int, BIO_info_cb *); |
28 | }; |
29 | |
30 | void bio_free_ex_data(BIO *bio); |
31 | void bio_cleanup(void); |
32 | |
33 | |
34 | /* Old style to new style BIO_METHOD conversion functions */ |
35 | int bwrite_conv(BIO *bio, const char *data, size_t datal, size_t *written); |
36 | int bread_conv(BIO *bio, char *data, size_t datal, size_t *read); |
37 | |
38 | /* Changes to these internal BIOs must also update include/openssl/bio.h */ |
39 | # define BIO_CTRL_SET_KTLS 72 |
40 | # define BIO_CTRL_SET_KTLS_TX_SEND_CTRL_MSG 74 |
41 | # define BIO_CTRL_CLEAR_KTLS_TX_CTRL_MSG 75 |
42 | |
43 | /* |
44 | * This is used with socket BIOs: |
45 | * BIO_FLAGS_KTLS_TX means we are using ktls with this BIO for sending. |
46 | * BIO_FLAGS_KTLS_TX_CTRL_MSG means we are about to send a ctrl message next. |
47 | * BIO_FLAGS_KTLS_RX means we are using ktls with this BIO for receiving. |
48 | */ |
49 | # define BIO_FLAGS_KTLS_TX 0x800 |
50 | # define BIO_FLAGS_KTLS_TX_CTRL_MSG 0x1000 |
51 | # define BIO_FLAGS_KTLS_RX 0x2000 |
52 | |
53 | /* KTLS related controls and flags */ |
54 | # define BIO_set_ktls_flag(b, is_tx) \ |
55 | BIO_set_flags(b, (is_tx) ? BIO_FLAGS_KTLS_TX : BIO_FLAGS_KTLS_RX) |
56 | # define BIO_should_ktls_flag(b, is_tx) \ |
57 | BIO_test_flags(b, (is_tx) ? BIO_FLAGS_KTLS_TX : BIO_FLAGS_KTLS_RX) |
58 | # define BIO_set_ktls_ctrl_msg_flag(b) \ |
59 | BIO_set_flags(b, BIO_FLAGS_KTLS_TX_CTRL_MSG) |
60 | # define BIO_should_ktls_ctrl_msg_flag(b) \ |
61 | BIO_test_flags(b, BIO_FLAGS_KTLS_TX_CTRL_MSG) |
62 | # define BIO_clear_ktls_ctrl_msg_flag(b) \ |
63 | BIO_clear_flags(b, BIO_FLAGS_KTLS_TX_CTRL_MSG) |
64 | |
65 | # define BIO_set_ktls(b, keyblob, is_tx) \ |
66 | BIO_ctrl(b, BIO_CTRL_SET_KTLS, is_tx, keyblob) |
67 | # define BIO_set_ktls_ctrl_msg(b, record_type) \ |
68 | BIO_ctrl(b, BIO_CTRL_SET_KTLS_TX_SEND_CTRL_MSG, record_type, NULL) |
69 | # define BIO_clear_ktls_ctrl_msg(b) \ |
70 | BIO_ctrl(b, BIO_CTRL_CLEAR_KTLS_TX_CTRL_MSG, 0, NULL) |
71 | |
72 | #endif |
73 | |