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annotate deps/Platinum/ThirdParty/Neptune/ThirdParty/axTLS/ssl/tls1.h @ 0:3425707ddbf6

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author fraserofthenight
date Mon, 06 Jul 2009 08:06:28 -0700
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1 /*
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2 * Copyright (c) 2007, Cameron Rich
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3 *
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4 * All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * * Redistributions of source code must retain the above copyright notice,
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10 * this list of conditions and the following disclaimer.
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11 * * Redistributions in binary form must reproduce the above copyright notice,
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12 * this list of conditions and the following disclaimer in the documentation
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13 * and/or other materials provided with the distribution.
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14 * * Neither the name of the axTLS project nor the names of its contributors
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15 * may be used to endorse or promote products derived from this software
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16 * without specific prior written permission.
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17 *
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18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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26 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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29 */
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30
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31 /**
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32 * @file tls1.h
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33 *
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34 * @brief The definitions for the TLS library.
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35 */
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36 #ifndef HEADER_SSL_LIB_H
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37 #define HEADER_SSL_LIB_H
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38
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39 #ifdef __cplusplus
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40 extern "C" {
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41 #endif
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42
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43 #include "version.h"
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44 #include "crypto.h"
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45 #include "os_port.h"
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46 #include "crypto_misc.h"
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47
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48 #define SSL_RANDOM_SIZE 32
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49 #define SSL_SECRET_SIZE 48
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50 #define SSL_FINISHED_HASH_SIZE 12
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51 #define SSL_RECORD_SIZE 5
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52 #define SSL_SERVER_READ 0
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53 #define SSL_SERVER_WRITE 1
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54 #define SSL_CLIENT_READ 2
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55 #define SSL_CLIENT_WRITE 3
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56 #define SSL_HS_HDR_SIZE 4
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57
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58 /* the flags we use while establishing a connection */
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59 #define SSL_NEED_RECORD 0x0001
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60 #define SSL_TX_ENCRYPTED 0x0002
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61 #define SSL_RX_ENCRYPTED 0x0004
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62 #define SSL_SESSION_RESUME 0x0008
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63 #define SSL_IS_CLIENT 0x0010
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64 #define SSL_HAS_CERT_REQ 0x0020
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65
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66 /* some macros to muck around with flag bits */
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67 #define SET_SSL_FLAG(A) (ssl->flag |= A)
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68 #define CLR_SSL_FLAG(A) (ssl->flag &= ~A)
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69 #define IS_SET_SSL_FLAG(A) (ssl->flag & A)
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70
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71 #define MAX_KEY_BYTE_SIZE 512 /* for a 4096 bit key */
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72 #define RT_MAX_PLAIN_LENGTH 16384
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73 #define RT_EXTRA 1024
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74 #define BM_RECORD_OFFSET 5
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75
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76 #ifdef CONFIG_SSL_SKELETON_MODE
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77 #define NUM_PROTOCOLS 1
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78 #else
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79 #define NUM_PROTOCOLS 4
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80 #endif
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81
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82 #define PARANOIA_CHECK(A, B) if (A < B) { \
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83 ret = SSL_ERROR_INVALID_HANDSHAKE; goto error; }
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84
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85 /* protocol types */
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86 enum
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87 {
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88 PT_CHANGE_CIPHER_SPEC = 20,
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89 PT_ALERT_PROTOCOL,
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90 PT_HANDSHAKE_PROTOCOL,
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91 PT_APP_PROTOCOL_DATA
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92 };
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93
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94 /* handshaking types */
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95 enum
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96 {
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97 HS_HELLO_REQUEST,
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98 HS_CLIENT_HELLO,
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99 HS_SERVER_HELLO,
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100 HS_CERTIFICATE = 11,
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101 HS_SERVER_KEY_XCHG,
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102 HS_CERT_REQ,
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103 HS_SERVER_HELLO_DONE,
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104 HS_CERT_VERIFY,
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105 HS_CLIENT_KEY_XCHG,
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106 HS_FINISHED = 20
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107 };
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108
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109 typedef struct
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110 {
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111 uint8_t cipher;
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112 uint8_t key_size;
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113 uint8_t iv_size;
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114 uint8_t key_block_size;
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115 uint8_t padding_size;
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116 uint8_t digest_size;
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117 hmac_func hmac;
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118 crypt_func encrypt;
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119 crypt_func decrypt;
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120 } cipher_info_t;
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121
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122 struct _SSLObjLoader
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123 {
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124 uint8_t *buf;
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125 int len;
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126 };
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127
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128 typedef struct _SSLObjLoader SSLObjLoader;
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129
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130 typedef struct
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131 {
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132 time_t conn_time;
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133 uint8_t session_id[SSL_SESSION_ID_SIZE];
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134 uint8_t master_secret[SSL_SECRET_SIZE];
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135 } SSL_SESS;
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136
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137 typedef struct
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138 {
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139 uint8_t *buf;
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140 int size;
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141 } SSL_CERT;
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142
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143 typedef struct
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144 {
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145 MD5_CTX md5_ctx;
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146 SHA1_CTX sha1_ctx;
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147 uint8_t final_finish_mac[SSL_FINISHED_HASH_SIZE];
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148 uint8_t *key_block;
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149 uint8_t master_secret[SSL_SECRET_SIZE];
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150 uint8_t client_random[SSL_RANDOM_SIZE]; /* client's random sequence */
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151 uint8_t server_random[SSL_RANDOM_SIZE]; /* server's random sequence */
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152 uint16_t bm_proc_index;
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153 } DISPOSABLE_CTX;
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154
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155 struct _SSL
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156 {
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157 uint32_t flag;
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158 uint16_t need_bytes;
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159 uint16_t got_bytes;
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160 uint8_t record_type;
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161 uint8_t cipher;
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162 uint8_t sess_id_size;
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163 int16_t next_state;
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164 int16_t hs_status;
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165 DISPOSABLE_CTX *dc; /* temporary data which we'll get rid of soon */
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166 SSL_SOCKET* client_fd;
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167 const cipher_info_t *cipher_info;
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168 void *encrypt_ctx;
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169 void *decrypt_ctx;
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170 uint8_t bm_all_data[RT_MAX_PLAIN_LENGTH+RT_EXTRA];
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171 uint8_t *bm_data;
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172 uint16_t bm_index;
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173 uint16_t bm_read_index;
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174 struct _SSL *next; /* doubly linked list */
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175 struct _SSL *prev;
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176 struct _SSL_CTX *ssl_ctx; /* back reference to a clnt/svr ctx */
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177 #ifndef CONFIG_SSL_SKELETON_MODE
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178 uint16_t session_index;
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179 SSL_SESS *session;
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180 #endif
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181 #ifdef CONFIG_SSL_CERT_VERIFICATION
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182 X509_CTX *x509_ctx;
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183 #endif
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184
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185 uint8_t session_id[SSL_SESSION_ID_SIZE];
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186 uint8_t client_mac[SHA1_SIZE]; /* for HMAC verification */
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187 uint8_t server_mac[SHA1_SIZE]; /* for HMAC verification */
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188 uint8_t read_sequence[8]; /* 64 bit sequence number */
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189 uint8_t write_sequence[8]; /* 64 bit sequence number */
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190 uint8_t hmac_header[SSL_RECORD_SIZE]; /* rx hmac */
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191 };
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192
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193 typedef struct _SSL SSL;
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194
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195 struct _SSL_CTX
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196 {
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197 uint32_t options;
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198 uint8_t chain_length;
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199 RSA_CTX *rsa_ctx;
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200 #ifdef CONFIG_SSL_CERT_VERIFICATION
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201 CA_CERT_CTX *ca_cert_ctx;
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202 #endif
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203 SSL *head;
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204 SSL *tail;
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205 SSL_CERT certs[CONFIG_SSL_MAX_CERTS];
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206 #ifndef CONFIG_SSL_SKELETON_MODE
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207 uint16_t num_sessions;
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208 SSL_SESS **ssl_sessions;
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209 #endif
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210 #ifdef CONFIG_SSL_CTX_MUTEXING
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211 SSL_CTX_MUTEX_TYPE mutex;
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212 #endif
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213 #ifdef CONFIG_OPENSSL_COMPATIBLE
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214 void *bonus_attr;
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215 #endif
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216 };
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217
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218 typedef struct _SSL_CTX SSL_CTX;
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219
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220 /* backwards compatibility */
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221 typedef struct _SSL_CTX SSLCTX;
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222
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223 extern const uint8_t ssl_prot_prefs[NUM_PROTOCOLS];
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224
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225 SSL *ssl_new(SSL_CTX *ssl_ctx, void* client_fd);
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226 void disposable_new(SSL *ssl);
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227 void disposable_free(SSL *ssl);
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228 int send_packet(SSL *ssl, uint8_t protocol,
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229 const uint8_t *in, int length);
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230 int do_svr_handshake(SSL *ssl, int handshake_type, uint8_t *buf, int hs_len);
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231 int do_clnt_handshake(SSL *ssl, int handshake_type, uint8_t *buf, int hs_len);
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232 int process_finished(SSL *ssl, int hs_len);
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233 int process_sslv23_client_hello(SSL *ssl);
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234 int send_alert(SSL *ssl, int error_code);
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235 int send_finished(SSL *ssl);
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236 int send_certificate(SSL *ssl);
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237 int basic_read(SSL *ssl, uint8_t **in_data);
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238 int send_change_cipher_spec(SSL *ssl);
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239 void finished_digest(SSL *ssl, const char *label, uint8_t *digest);
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240 void generate_master_secret(SSL *ssl, const uint8_t *premaster_secret);
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241 void add_packet(SSL *ssl, const uint8_t *pkt, int len);
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242 int add_cert(SSL_CTX *ssl_ctx, const uint8_t *buf, int len);
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243 int add_private_key(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj);
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244 void ssl_obj_free(SSLObjLoader *ssl_obj);
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245 int pkcs8_decode(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj, const char *password);
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246 int pkcs12_decode(SSL_CTX *ssl_ctx, SSLObjLoader *ssl_obj, const char *password);
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247 int load_key_certs(SSL_CTX *ssl_ctx);
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248 #ifdef CONFIG_SSL_CERT_VERIFICATION
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249 int add_cert_auth(SSL_CTX *ssl_ctx, const uint8_t *buf, int len);
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250 void remove_ca_certs(CA_CERT_CTX *ca_cert_ctx);
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251 #endif
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252 #ifdef CONFIG_SSL_ENABLE_CLIENT
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253 int do_client_connect(SSL *ssl);
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254 #endif
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255
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256 #ifdef CONFIG_SSL_FULL_MODE
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257 void DISPLAY_STATE(SSL *ssl, int is_send, uint8_t state, int not_ok);
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258 void DISPLAY_BYTES(SSL *ssl, const char *format,
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259 const uint8_t *data, int size, ...);
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260 void DISPLAY_CERT(SSL *ssl, const X509_CTX *x509_ctx);
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261 void DISPLAY_RSA(SSL *ssl, const RSA_CTX *rsa_ctx);
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262 void DISPLAY_ALERT(SSL *ssl, int alert);
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263 #else
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264 #define DISPLAY_STATE(A,B,C,D)
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265 #define DISPLAY_CERT(A,B)
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266 #define DISPLAY_RSA(A,B)
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267 #define DISPLAY_ALERT(A, B)
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268 #ifdef WIN32
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269 void DISPLAY_BYTES(SSL *ssl, const char *format,/* win32 has no variadic macros */
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270 const uint8_t *data, int size, ...);
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271 #else
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272 void DISPLAY_BYTES(SSL *ssl, const char *format,/* win32 has no variadic macros */
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273 const uint8_t *data, int size, ...);
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274 #endif
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275 #endif
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276
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277 #ifdef CONFIG_SSL_CERT_VERIFICATION
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278 int process_certificate(SSL *ssl, X509_CTX **x509_ctx);
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279 #endif
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280
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281 SSL_SESS *ssl_session_update(int max_sessions,
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282 SSL_SESS *ssl_sessions[], SSL *ssl,
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283 const uint8_t *session_id);
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284 void kill_ssl_session(SSL_SESS **ssl_sessions, SSL *ssl);
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285
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286 #ifdef __cplusplus
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287 }
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288 #endif
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289
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290 #endif