source: EcnlProtoTool/trunk/openssl-1.1.0e/ssl/record/record.h@ 331

Last change on this file since 331 was 331, checked in by coas-nagasima, 6 years ago

prototoolに関連するプロジェクトをnewlibからmuslを使うよう変更・更新
ntshellをnewlibの下位の実装から、muslのsyscallの実装に変更・更新
以下のOSSをアップデート
・mruby-1.3.0
・musl-1.1.18
・onigmo-6.1.3
・tcc-0.9.27
以下のOSSを追加
・openssl-1.1.0e
・curl-7.57.0
・zlib-1.2.11
以下のmrbgemsを追加
・iij/mruby-digest
・iij/mruby-env
・iij/mruby-errno
・iij/mruby-iijson
・iij/mruby-ipaddr
・iij/mruby-mock
・iij/mruby-require
・iij/mruby-tls-openssl
  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-chdr
File size: 9.6 KB
RevLine 
[331]1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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/*****************************************************************************
11 * *
12 * These structures should be considered PRIVATE to the record layer. No *
13 * non-record layer code should be using these structures in any way. *
14 * *
15 *****************************************************************************/
16
17typedef struct ssl3_buffer_st {
18 /* at least SSL3_RT_MAX_PACKET_SIZE bytes, see ssl3_setup_buffers() */
19 unsigned char *buf;
20 /* default buffer size (or 0 if no default set) */
21 size_t default_len;
22 /* buffer size */
23 size_t len;
24 /* where to 'copy from' */
25 int offset;
26 /* how many bytes left */
27 int left;
28} SSL3_BUFFER;
29
30#define SEQ_NUM_SIZE 8
31
32typedef struct ssl3_record_st {
33 /* Record layer version */
34 /* r */
35 int rec_version;
36 /* type of record */
37 /* r */
38 int type;
39 /* How many bytes available */
40 /* rw */
41 unsigned int length;
42 /*
43 * How many bytes were available before padding was removed? This is used
44 * to implement the MAC check in constant time for CBC records.
45 */
46 /* rw */
47 unsigned int orig_len;
48 /* read/write offset into 'buf' */
49 /* r */
50 unsigned int off;
51 /* pointer to the record data */
52 /* rw */
53 unsigned char *data;
54 /* where the decode bytes are */
55 /* rw */
56 unsigned char *input;
57 /* only used with decompression - malloc()ed */
58 /* r */
59 unsigned char *comp;
60 /* Whether the data from this record has already been read or not */
61 /* r */
62 unsigned int read;
63 /* epoch number, needed by DTLS1 */
64 /* r */
65 unsigned long epoch;
66 /* sequence number, needed by DTLS1 */
67 /* r */
68 unsigned char seq_num[SEQ_NUM_SIZE];
69} SSL3_RECORD;
70
71typedef struct dtls1_bitmap_st {
72 /* Track 32 packets on 32-bit systems and 64 - on 64-bit systems */
73 unsigned long map;
74 /* Max record number seen so far, 64-bit value in big-endian encoding */
75 unsigned char max_seq_num[SEQ_NUM_SIZE];
76} DTLS1_BITMAP;
77
78typedef struct record_pqueue_st {
79 unsigned short epoch;
80 struct pqueue_st *q;
81} record_pqueue;
82
83typedef struct dtls1_record_data_st {
84 unsigned char *packet;
85 unsigned int packet_length;
86 SSL3_BUFFER rbuf;
87 SSL3_RECORD rrec;
88#ifndef OPENSSL_NO_SCTP
89 struct bio_dgram_sctp_rcvinfo recordinfo;
90#endif
91} DTLS1_RECORD_DATA;
92
93typedef struct dtls_record_layer_st {
94 /*
95 * The current data and handshake epoch. This is initially
96 * undefined, and starts at zero once the initial handshake is
97 * completed
98 */
99 unsigned short r_epoch;
100 unsigned short w_epoch;
101 /* records being received in the current epoch */
102 DTLS1_BITMAP bitmap;
103 /* renegotiation starts a new set of sequence numbers */
104 DTLS1_BITMAP next_bitmap;
105 /* Received handshake records (processed and unprocessed) */
106 record_pqueue unprocessed_rcds;
107 record_pqueue processed_rcds;
108 /*
109 * Buffered application records. Only for records between CCS and
110 * Finished to prevent either protocol violation or unnecessary message
111 * loss.
112 */
113 record_pqueue buffered_app_data;
114 /*
115 * storage for Alert/Handshake protocol data received but not yet
116 * processed by ssl3_read_bytes:
117 */
118 unsigned char alert_fragment[DTLS1_AL_HEADER_LENGTH];
119 unsigned int alert_fragment_len;
120 unsigned char handshake_fragment[DTLS1_HM_HEADER_LENGTH];
121 unsigned int handshake_fragment_len;
122 /* save last and current sequence numbers for retransmissions */
123 unsigned char last_write_sequence[8];
124 unsigned char curr_write_sequence[8];
125} DTLS_RECORD_LAYER;
126
127/*****************************************************************************
128 * *
129 * This structure should be considered "opaque" to anything outside of the *
130 * record layer. No non-record layer code should be accessing the members of *
131 * this structure. *
132 * *
133 *****************************************************************************/
134
135typedef struct record_layer_st {
136 /* The parent SSL structure */
137 SSL *s;
138 /*
139 * Read as many input bytes as possible (for
140 * non-blocking reads)
141 */
142 int read_ahead;
143 /* where we are when reading */
144 int rstate;
145 /* How many pipelines can be used to read data */
146 unsigned int numrpipes;
147 /* How many pipelines can be used to write data */
148 unsigned int numwpipes;
149 /* read IO goes into here */
150 SSL3_BUFFER rbuf;
151 /* write IO goes into here */
152 SSL3_BUFFER wbuf[SSL_MAX_PIPELINES];
153 /* each decoded record goes in here */
154 SSL3_RECORD rrec[SSL_MAX_PIPELINES];
155 /* used internally to point at a raw packet */
156 unsigned char *packet;
157 unsigned int packet_length;
158 /* number of bytes sent so far */
159 unsigned int wnum;
160 /*
161 * storage for Alert/Handshake protocol data received but not yet
162 * processed by ssl3_read_bytes:
163 */
164 unsigned char alert_fragment[2];
165 unsigned int alert_fragment_len;
166 unsigned char handshake_fragment[4];
167 unsigned int handshake_fragment_len;
168 /* The number of consecutive empty records we have received */
169 unsigned int empty_record_count;
170 /* partial write - check the numbers match */
171 /* number bytes written */
172 int wpend_tot;
173 int wpend_type;
174 /* number of bytes submitted */
175 int wpend_ret;
176 const unsigned char *wpend_buf;
177 unsigned char read_sequence[SEQ_NUM_SIZE];
178 unsigned char write_sequence[SEQ_NUM_SIZE];
179 /* Set to true if this is the first record in a connection */
180 unsigned int is_first_record;
181 /* Count of the number of consecutive warning alerts received */
182 unsigned int alert_count;
183 DTLS_RECORD_LAYER *d;
184} RECORD_LAYER;
185
186/*****************************************************************************
187 * *
188 * The following macros/functions represent the libssl internal API to the *
189 * record layer. Any libssl code may call these functions/macros *
190 * *
191 *****************************************************************************/
192
193#define MIN_SSL2_RECORD_LEN 9
194
195#define RECORD_LAYER_set_read_ahead(rl, ra) ((rl)->read_ahead = (ra))
196#define RECORD_LAYER_get_read_ahead(rl) ((rl)->read_ahead)
197#define RECORD_LAYER_get_packet(rl) ((rl)->packet)
198#define RECORD_LAYER_get_packet_length(rl) ((rl)->packet_length)
199#define RECORD_LAYER_add_packet_length(rl, inc) ((rl)->packet_length += (inc))
200#define DTLS_RECORD_LAYER_get_w_epoch(rl) ((rl)->d->w_epoch)
201#define DTLS_RECORD_LAYER_get_processed_rcds(rl) \
202 ((rl)->d->processed_rcds)
203#define DTLS_RECORD_LAYER_get_unprocessed_rcds(rl) \
204 ((rl)->d->unprocessed_rcds)
205
206void RECORD_LAYER_init(RECORD_LAYER *rl, SSL *s);
207void RECORD_LAYER_clear(RECORD_LAYER *rl);
208void RECORD_LAYER_release(RECORD_LAYER *rl);
209int RECORD_LAYER_read_pending(const RECORD_LAYER *rl);
210int RECORD_LAYER_write_pending(const RECORD_LAYER *rl);
211int RECORD_LAYER_set_data(RECORD_LAYER *rl, const unsigned char *buf, int len);
212void RECORD_LAYER_reset_read_sequence(RECORD_LAYER *rl);
213void RECORD_LAYER_reset_write_sequence(RECORD_LAYER *rl);
214int RECORD_LAYER_is_sslv2_record(RECORD_LAYER *rl);
215unsigned int RECORD_LAYER_get_rrec_length(RECORD_LAYER *rl);
216__owur int ssl3_pending(const SSL *s);
217__owur int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
218__owur int do_ssl3_write(SSL *s, int type, const unsigned char *buf,
219 unsigned int *pipelens, unsigned int numpipes,
220 int create_empty_fragment);
221__owur int ssl3_read_bytes(SSL *s, int type, int *recvd_type,
222 unsigned char *buf, int len, int peek);
223__owur int ssl3_setup_buffers(SSL *s);
224__owur int ssl3_enc(SSL *s, SSL3_RECORD *inrecs, unsigned int n_recs, int send);
225__owur int n_ssl3_mac(SSL *ssl, SSL3_RECORD *rec, unsigned char *md, int send);
226__owur int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
227 unsigned int len);
228__owur int tls1_enc(SSL *s, SSL3_RECORD *recs, unsigned int n_recs, int send);
229__owur int tls1_mac(SSL *ssl, SSL3_RECORD *rec, unsigned char *md, int send);
230int DTLS_RECORD_LAYER_new(RECORD_LAYER *rl);
231void DTLS_RECORD_LAYER_free(RECORD_LAYER *rl);
232void DTLS_RECORD_LAYER_clear(RECORD_LAYER *rl);
233void DTLS_RECORD_LAYER_set_saved_w_epoch(RECORD_LAYER *rl, unsigned short e);
234void DTLS_RECORD_LAYER_clear(RECORD_LAYER *rl);
235void DTLS_RECORD_LAYER_resync_write(RECORD_LAYER *rl);
236void DTLS_RECORD_LAYER_set_write_sequence(RECORD_LAYER *rl, unsigned char *seq);
237__owur int dtls1_read_bytes(SSL *s, int type, int *recvd_type,
238 unsigned char *buf, int len, int peek);
239__owur int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
240__owur int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
241 unsigned int len, int create_empty_fragement);
242void dtls1_reset_seq_numbers(SSL *s, int rw);
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