[331] | 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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