xref: /openbsd-src/lib/libssl/tls_content.h (revision ee4250f602ddc943dc6358c3db4ef7172118489a)
1 /* $OpenBSD: tls_content.h,v 1.2 2022/11/11 17:15:27 jsing Exp $ */
2 /*
3  * Copyright (c) 2020 Joel Sing <jsing@openbsd.org>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #ifndef HEADER_TLS_CONTENT_H
19 #define HEADER_TLS_CONTENT_H
20 
21 #include "bytestring.h"
22 
23 __BEGIN_HIDDEN_DECLS
24 
25 struct tls_content;
26 
27 struct tls_content *tls_content_new(void);
28 void tls_content_clear(struct tls_content *content);
29 void tls_content_free(struct tls_content *content);
30 
31 CBS *tls_content_cbs(struct tls_content *content);
32 int tls_content_equal(struct tls_content *content, const uint8_t *buf, size_t n);
33 size_t tls_content_remaining(struct tls_content *content);
34 uint8_t tls_content_type(struct tls_content *content);
35 uint16_t tls_content_epoch(struct tls_content *content);
36 
37 int tls_content_dup_data(struct tls_content *content, uint8_t type,
38     const uint8_t *data, size_t data_len);
39 void tls_content_set_data(struct tls_content *content, uint8_t type,
40     const uint8_t *data, size_t data_len);
41 int tls_content_set_bounds(struct tls_content *content, size_t offset,
42     size_t len);
43 void tls_content_set_epoch(struct tls_content *content, uint16_t epoch);
44 
45 ssize_t tls_content_peek(struct tls_content *content, uint8_t *buf, size_t n);
46 ssize_t tls_content_read(struct tls_content *content, uint8_t *buf, size_t n);
47 
48 __END_HIDDEN_DECLS
49 
50 #endif
51