1 | /*
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2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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3 | *
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4 | * Licensed under the OpenSSL license (the "License"). You may not use
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5 | * this file except in compliance with the License. You can obtain a copy
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6 | * in the file LICENSE in the source distribution or at
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7 | * https://www.openssl.org/source/license.html
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8 | */
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9 |
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10 | /*****************************************************************************
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11 | * *
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12 | * The following macros/functions are PRIVATE to the record layer. They *
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13 | * should NOT be used outside of the record layer. *
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14 | * *
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15 | *****************************************************************************/
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16 |
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17 | #define MAX_WARN_ALERT_COUNT 5
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18 |
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19 | /* Functions/macros provided by the RECORD_LAYER component */
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20 |
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21 | #define RECORD_LAYER_get_rbuf(rl) (&(rl)->rbuf)
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22 | #define RECORD_LAYER_get_wbuf(rl) ((rl)->wbuf)
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23 | #define RECORD_LAYER_get_rrec(rl) ((rl)->rrec)
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24 | #define RECORD_LAYER_set_packet(rl, p) ((rl)->packet = (p))
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25 | #define RECORD_LAYER_reset_packet_length(rl) ((rl)->packet_length = 0)
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26 | #define RECORD_LAYER_get_rstate(rl) ((rl)->rstate)
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27 | #define RECORD_LAYER_set_rstate(rl, st) ((rl)->rstate = (st))
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28 | #define RECORD_LAYER_get_read_sequence(rl) ((rl)->read_sequence)
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29 | #define RECORD_LAYER_get_write_sequence(rl) ((rl)->write_sequence)
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30 | #define RECORD_LAYER_get_numrpipes(rl) ((rl)->numrpipes)
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31 | #define RECORD_LAYER_set_numrpipes(rl, n) ((rl)->numrpipes = (n))
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32 | #define RECORD_LAYER_inc_empty_record_count(rl) ((rl)->empty_record_count++)
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33 | #define RECORD_LAYER_reset_empty_record_count(rl) \
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34 | ((rl)->empty_record_count = 0)
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35 | #define RECORD_LAYER_get_empty_record_count(rl) ((rl)->empty_record_count)
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36 | #define RECORD_LAYER_is_first_record(rl) ((rl)->is_first_record)
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37 | #define RECORD_LAYER_set_first_record(rl) ((rl)->is_first_record = 1)
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38 | #define RECORD_LAYER_clear_first_record(rl) ((rl)->is_first_record = 0)
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39 | #define DTLS_RECORD_LAYER_get_r_epoch(rl) ((rl)->d->r_epoch)
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40 |
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41 | __owur int ssl3_read_n(SSL *s, int n, int max, int extend, int clearold);
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42 |
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43 | void RECORD_LAYER_set_write_sequence(RECORD_LAYER *rl, const unsigned char *ws);
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44 | DTLS1_BITMAP *dtls1_get_bitmap(SSL *s, SSL3_RECORD *rr,
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45 | unsigned int *is_next_epoch);
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46 | int dtls1_process_buffered_records(SSL *s);
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47 | int dtls1_retrieve_buffered_record(SSL *s, record_pqueue *queue);
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48 | int dtls1_buffer_record(SSL *s, record_pqueue *q, unsigned char *priority);
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49 | void ssl3_record_sequence_update(unsigned char *seq);
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50 |
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51 | /* Functions provided by the DTLS1_BITMAP component */
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52 |
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53 | int dtls1_record_replay_check(SSL *s, DTLS1_BITMAP *bitmap);
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54 | void dtls1_record_bitmap_update(SSL *s, DTLS1_BITMAP *bitmap);
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55 |
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56 | /* Macros/functions provided by the SSL3_BUFFER component */
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57 |
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58 | #define SSL3_BUFFER_get_buf(b) ((b)->buf)
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59 | #define SSL3_BUFFER_set_buf(b, n) ((b)->buf = (n))
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60 | #define SSL3_BUFFER_get_len(b) ((b)->len)
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61 | #define SSL3_BUFFER_set_len(b, l) ((b)->len = (l))
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62 | #define SSL3_BUFFER_get_left(b) ((b)->left)
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63 | #define SSL3_BUFFER_set_left(b, l) ((b)->left = (l))
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64 | #define SSL3_BUFFER_add_left(b, l) ((b)->left += (l))
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65 | #define SSL3_BUFFER_get_offset(b) ((b)->offset)
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66 | #define SSL3_BUFFER_set_offset(b, o) ((b)->offset = (o))
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67 | #define SSL3_BUFFER_add_offset(b, o) ((b)->offset += (o))
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68 | #define SSL3_BUFFER_is_initialised(b) ((b)->buf != NULL)
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69 | #define SSL3_BUFFER_set_default_len(b, l) ((b)->default_len = (l))
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70 |
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71 | void SSL3_BUFFER_clear(SSL3_BUFFER *b);
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72 | void SSL3_BUFFER_set_data(SSL3_BUFFER *b, const unsigned char *d, int n);
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73 | void SSL3_BUFFER_release(SSL3_BUFFER *b);
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74 | __owur int ssl3_setup_read_buffer(SSL *s);
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75 | __owur int ssl3_setup_write_buffer(SSL *s, unsigned int numwpipes, size_t len);
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76 | int ssl3_release_read_buffer(SSL *s);
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77 | int ssl3_release_write_buffer(SSL *s);
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78 |
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79 | /* Macros/functions provided by the SSL3_RECORD component */
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80 |
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81 | #define SSL3_RECORD_get_type(r) ((r)->type)
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82 | #define SSL3_RECORD_set_type(r, t) ((r)->type = (t))
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83 | #define SSL3_RECORD_get_length(r) ((r)->length)
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84 | #define SSL3_RECORD_set_length(r, l) ((r)->length = (l))
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85 | #define SSL3_RECORD_add_length(r, l) ((r)->length += (l))
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86 | #define SSL3_RECORD_sub_length(r, l) ((r)->length -= (l))
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87 | #define SSL3_RECORD_get_data(r) ((r)->data)
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88 | #define SSL3_RECORD_set_data(r, d) ((r)->data = (d))
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89 | #define SSL3_RECORD_get_input(r) ((r)->input)
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90 | #define SSL3_RECORD_set_input(r, i) ((r)->input = (i))
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91 | #define SSL3_RECORD_reset_input(r) ((r)->input = (r)->data)
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92 | #define SSL3_RECORD_get_seq_num(r) ((r)->seq_num)
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93 | #define SSL3_RECORD_get_off(r) ((r)->off)
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94 | #define SSL3_RECORD_set_off(r, o) ((r)->off = (o))
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95 | #define SSL3_RECORD_add_off(r, o) ((r)->off += (o))
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96 | #define SSL3_RECORD_get_epoch(r) ((r)->epoch)
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97 | #define SSL3_RECORD_is_sslv2_record(r) \
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98 | ((r)->rec_version == SSL2_VERSION)
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99 | #define SSL3_RECORD_is_read(r) ((r)->read)
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100 | #define SSL3_RECORD_set_read(r) ((r)->read = 1)
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101 |
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102 | void SSL3_RECORD_clear(SSL3_RECORD *r, unsigned int num_recs);
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103 | void SSL3_RECORD_release(SSL3_RECORD *r, unsigned int num_recs);
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104 | void SSL3_RECORD_set_seq_num(SSL3_RECORD *r, const unsigned char *seq_num);
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105 | int ssl3_get_record(SSL *s);
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106 | __owur int ssl3_do_compress(SSL *ssl, SSL3_RECORD *wr);
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107 | __owur int ssl3_do_uncompress(SSL *ssl, SSL3_RECORD *rr);
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108 | void ssl3_cbc_copy_mac(unsigned char *out,
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109 | const SSL3_RECORD *rec, unsigned md_size);
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110 | __owur int ssl3_cbc_remove_padding(SSL3_RECORD *rec,
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111 | unsigned block_size, unsigned mac_size);
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112 | __owur int tls1_cbc_remove_padding(const SSL *s,
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113 | SSL3_RECORD *rec,
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114 | unsigned block_size, unsigned mac_size);
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115 | int dtls1_process_record(SSL *s, DTLS1_BITMAP *bitmap);
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116 | __owur int dtls1_get_record(SSL *s);
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