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Diffstat (limited to 'src/lib/libssl/tls13_record.c')
-rw-r--r--src/lib/libssl/tls13_record.c186
1 files changed, 0 insertions, 186 deletions
diff --git a/src/lib/libssl/tls13_record.c b/src/lib/libssl/tls13_record.c
deleted file mode 100644
index dbc835c546..0000000000
--- a/src/lib/libssl/tls13_record.c
+++ /dev/null
@@ -1,186 +0,0 @@
1/* $OpenBSD: tls13_record.c,v 1.10 2022/07/22 19:33:53 jsing Exp $ */
2/*
3 * Copyright (c) 2018, 2019 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#include "tls13_internal.h"
19#include "tls13_record.h"
20
21struct tls13_record {
22 uint16_t version;
23 uint8_t content_type;
24 size_t rec_len;
25 uint8_t *data;
26 size_t data_len;
27 CBS cbs;
28
29 struct tls_buffer *buf;
30};
31
32struct tls13_record *
33tls13_record_new(void)
34{
35 struct tls13_record *rec = NULL;
36
37 if ((rec = calloc(1, sizeof(struct tls13_record))) == NULL)
38 goto err;
39 if ((rec->buf = tls_buffer_new(TLS13_RECORD_MAX_LEN)) == NULL)
40 goto err;
41
42 return rec;
43
44 err:
45 tls13_record_free(rec);
46
47 return NULL;
48}
49
50void
51tls13_record_free(struct tls13_record *rec)
52{
53 if (rec == NULL)
54 return;
55
56 tls_buffer_free(rec->buf);
57
58 freezero(rec->data, rec->data_len);
59 freezero(rec, sizeof(struct tls13_record));
60}
61
62uint16_t
63tls13_record_version(struct tls13_record *rec)
64{
65 return rec->version;
66}
67
68uint8_t
69tls13_record_content_type(struct tls13_record *rec)
70{
71 return rec->content_type;
72}
73
74int
75tls13_record_header(struct tls13_record *rec, CBS *cbs)
76{
77 if (rec->data_len < TLS13_RECORD_HEADER_LEN)
78 return 0;
79
80 CBS_init(cbs, rec->data, TLS13_RECORD_HEADER_LEN);
81
82 return 1;
83}
84
85int
86tls13_record_content(struct tls13_record *rec, CBS *cbs)
87{
88 CBS content;
89
90 tls13_record_data(rec, &content);
91
92 if (!CBS_skip(&content, TLS13_RECORD_HEADER_LEN))
93 return 0;
94
95 CBS_dup(&content, cbs);
96
97 return 1;
98}
99
100void
101tls13_record_data(struct tls13_record *rec, CBS *cbs)
102{
103 CBS_init(cbs, rec->data, rec->data_len);
104}
105
106int
107tls13_record_set_data(struct tls13_record *rec, uint8_t *data, size_t data_len)
108{
109 if (data_len > TLS13_RECORD_MAX_LEN)
110 return 0;
111
112 freezero(rec->data, rec->data_len);
113 rec->data = data;
114 rec->data_len = data_len;
115 CBS_init(&rec->cbs, rec->data, rec->data_len);
116
117 return 1;
118}
119
120ssize_t
121tls13_record_recv(struct tls13_record *rec, tls_read_cb wire_read,
122 void *wire_arg)
123{
124 uint16_t rec_len, rec_version;
125 uint8_t content_type;
126 ssize_t ret;
127 CBS cbs;
128
129 if (rec->data != NULL)
130 return TLS13_IO_FAILURE;
131
132 if (rec->content_type == 0) {
133 if ((ret = tls_buffer_extend(rec->buf,
134 TLS13_RECORD_HEADER_LEN, wire_read, wire_arg)) <= 0)
135 return ret;
136
137 if (!tls_buffer_data(rec->buf, &cbs))
138 return TLS13_IO_FAILURE;
139
140 if (!CBS_get_u8(&cbs, &content_type))
141 return TLS13_IO_FAILURE;
142 if (!CBS_get_u16(&cbs, &rec_version))
143 return TLS13_IO_FAILURE;
144 if (!CBS_get_u16(&cbs, &rec_len))
145 return TLS13_IO_FAILURE;
146
147 if ((rec_version >> 8) != SSL3_VERSION_MAJOR)
148 return TLS13_IO_RECORD_VERSION;
149 if (rec_len > TLS13_RECORD_MAX_CIPHERTEXT_LEN)
150 return TLS13_IO_RECORD_OVERFLOW;
151
152 rec->content_type = content_type;
153 rec->version = rec_version;
154 rec->rec_len = rec_len;
155 }
156
157 if ((ret = tls_buffer_extend(rec->buf,
158 TLS13_RECORD_HEADER_LEN + rec->rec_len, wire_read, wire_arg)) <= 0)
159 return ret;
160
161 if (!tls_buffer_finish(rec->buf, &rec->data, &rec->data_len))
162 return TLS13_IO_FAILURE;
163
164 return rec->data_len;
165}
166
167ssize_t
168tls13_record_send(struct tls13_record *rec, tls_write_cb wire_write,
169 void *wire_arg)
170{
171 ssize_t ret;
172
173 if (rec->data == NULL)
174 return TLS13_IO_FAILURE;
175
176 while (CBS_len(&rec->cbs) > 0) {
177 if ((ret = wire_write(CBS_data(&rec->cbs),
178 CBS_len(&rec->cbs), wire_arg)) <= 0)
179 return ret;
180
181 if (!CBS_skip(&rec->cbs, ret))
182 return TLS13_IO_FAILURE;
183 }
184
185 return rec->data_len;
186}
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