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1 /*
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2 * Copyright 2000-2022 The OpenSSL Project Authors. All Rights Reserved.
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3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
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jpayne@69
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4 *
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5 * Licensed under the OpenSSL license (the "License"). You may not use
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6 * this file except in compliance with the License. You can obtain a copy
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7 * in the file LICENSE in the source distribution or at
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8 * https://www.openssl.org/source/license.html
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9 */
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10
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11 #ifndef HEADER_ENGINE_H
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12 # define HEADER_ENGINE_H
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13
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14 # include <openssl/opensslconf.h>
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15
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16 # ifndef OPENSSL_NO_ENGINE
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17 # if OPENSSL_API_COMPAT < 0x10100000L
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18 # include <openssl/bn.h>
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19 # include <openssl/rsa.h>
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20 # include <openssl/dsa.h>
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21 # include <openssl/dh.h>
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22 # include <openssl/ec.h>
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23 # include <openssl/rand.h>
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24 # include <openssl/ui.h>
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25 # include <openssl/err.h>
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26 # endif
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27 # include <openssl/ossl_typ.h>
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28 # include <openssl/symhacks.h>
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29 # include <openssl/x509.h>
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30 # include <openssl/engineerr.h>
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31 # ifdef __cplusplus
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32 extern "C" {
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33 # endif
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34
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35 /*
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36 * These flags are used to control combinations of algorithm (methods) by
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37 * bitwise "OR"ing.
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38 */
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39 # define ENGINE_METHOD_RSA (unsigned int)0x0001
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40 # define ENGINE_METHOD_DSA (unsigned int)0x0002
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41 # define ENGINE_METHOD_DH (unsigned int)0x0004
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42 # define ENGINE_METHOD_RAND (unsigned int)0x0008
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43 # define ENGINE_METHOD_CIPHERS (unsigned int)0x0040
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44 # define ENGINE_METHOD_DIGESTS (unsigned int)0x0080
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45 # define ENGINE_METHOD_PKEY_METHS (unsigned int)0x0200
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46 # define ENGINE_METHOD_PKEY_ASN1_METHS (unsigned int)0x0400
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47 # define ENGINE_METHOD_EC (unsigned int)0x0800
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48 /* Obvious all-or-nothing cases. */
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49 # define ENGINE_METHOD_ALL (unsigned int)0xFFFF
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50 # define ENGINE_METHOD_NONE (unsigned int)0x0000
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51
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52 /*
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53 * This(ese) flag(s) controls behaviour of the ENGINE_TABLE mechanism used
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54 * internally to control registration of ENGINE implementations, and can be
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55 * set by ENGINE_set_table_flags(). The "NOINIT" flag prevents attempts to
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56 * initialise registered ENGINEs if they are not already initialised.
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57 */
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58 # define ENGINE_TABLE_FLAG_NOINIT (unsigned int)0x0001
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59
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60 /* ENGINE flags that can be set by ENGINE_set_flags(). */
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61 /* Not used */
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62 /* #define ENGINE_FLAGS_MALLOCED 0x0001 */
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63
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64 /*
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65 * This flag is for ENGINEs that wish to handle the various 'CMD'-related
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66 * control commands on their own. Without this flag, ENGINE_ctrl() handles
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67 * these control commands on behalf of the ENGINE using their "cmd_defns"
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68 * data.
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69 */
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70 # define ENGINE_FLAGS_MANUAL_CMD_CTRL (int)0x0002
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71
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72 /*
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73 * This flag is for ENGINEs who return new duplicate structures when found
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74 * via "ENGINE_by_id()". When an ENGINE must store state (eg. if
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75 * ENGINE_ctrl() commands are called in sequence as part of some stateful
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76 * process like key-generation setup and execution), it can set this flag -
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77 * then each attempt to obtain the ENGINE will result in it being copied into
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78 * a new structure. Normally, ENGINEs don't declare this flag so
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79 * ENGINE_by_id() just increments the existing ENGINE's structural reference
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80 * count.
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81 */
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82 # define ENGINE_FLAGS_BY_ID_COPY (int)0x0004
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83
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84 /*
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85 * This flag if for an ENGINE that does not want its methods registered as
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86 * part of ENGINE_register_all_complete() for example if the methods are not
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87 * usable as default methods.
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88 */
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89
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90 # define ENGINE_FLAGS_NO_REGISTER_ALL (int)0x0008
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91
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92 /*
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93 * ENGINEs can support their own command types, and these flags are used in
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94 * ENGINE_CTRL_GET_CMD_FLAGS to indicate to the caller what kind of input
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95 * each command expects. Currently only numeric and string input is
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96 * supported. If a control command supports none of the _NUMERIC, _STRING, or
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97 * _NO_INPUT options, then it is regarded as an "internal" control command -
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98 * and not for use in config setting situations. As such, they're not
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99 * available to the ENGINE_ctrl_cmd_string() function, only raw ENGINE_ctrl()
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100 * access. Changes to this list of 'command types' should be reflected
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101 * carefully in ENGINE_cmd_is_executable() and ENGINE_ctrl_cmd_string().
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102 */
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103
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104 /* accepts a 'long' input value (3rd parameter to ENGINE_ctrl) */
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105 # define ENGINE_CMD_FLAG_NUMERIC (unsigned int)0x0001
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106 /*
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107 * accepts string input (cast from 'void*' to 'const char *', 4th parameter
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108 * to ENGINE_ctrl)
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109 */
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110 # define ENGINE_CMD_FLAG_STRING (unsigned int)0x0002
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111 /*
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112 * Indicates that the control command takes *no* input. Ie. the control
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113 * command is unparameterised.
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114 */
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115 # define ENGINE_CMD_FLAG_NO_INPUT (unsigned int)0x0004
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116 /*
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117 * Indicates that the control command is internal. This control command won't
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118 * be shown in any output, and is only usable through the ENGINE_ctrl_cmd()
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119 * function.
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120 */
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121 # define ENGINE_CMD_FLAG_INTERNAL (unsigned int)0x0008
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122
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123 /*
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124 * NB: These 3 control commands are deprecated and should not be used.
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125 * ENGINEs relying on these commands should compile conditional support for
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126 * compatibility (eg. if these symbols are defined) but should also migrate
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127 * the same functionality to their own ENGINE-specific control functions that
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128 * can be "discovered" by calling applications. The fact these control
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129 * commands wouldn't be "executable" (ie. usable by text-based config)
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130 * doesn't change the fact that application code can find and use them
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131 * without requiring per-ENGINE hacking.
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132 */
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133
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134 /*
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135 * These flags are used to tell the ctrl function what should be done. All
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136 * command numbers are shared between all engines, even if some don't make
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137 * sense to some engines. In such a case, they do nothing but return the
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138 * error ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED.
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139 */
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140 # define ENGINE_CTRL_SET_LOGSTREAM 1
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141 # define ENGINE_CTRL_SET_PASSWORD_CALLBACK 2
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142 # define ENGINE_CTRL_HUP 3/* Close and reinitialise
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143 * any handles/connections
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144 * etc. */
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145 # define ENGINE_CTRL_SET_USER_INTERFACE 4/* Alternative to callback */
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146 # define ENGINE_CTRL_SET_CALLBACK_DATA 5/* User-specific data, used
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147 * when calling the password
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148 * callback and the user
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149 * interface */
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150 # define ENGINE_CTRL_LOAD_CONFIGURATION 6/* Load a configuration,
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151 * given a string that
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152 * represents a file name
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153 * or so */
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154 # define ENGINE_CTRL_LOAD_SECTION 7/* Load data from a given
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155 * section in the already
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156 * loaded configuration */
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157
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158 /*
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159 * These control commands allow an application to deal with an arbitrary
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160 * engine in a dynamic way. Warn: Negative return values indicate errors FOR
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161 * THESE COMMANDS because zero is used to indicate 'end-of-list'. Other
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162 * commands, including ENGINE-specific command types, return zero for an
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163 * error. An ENGINE can choose to implement these ctrl functions, and can
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164 * internally manage things however it chooses - it does so by setting the
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165 * ENGINE_FLAGS_MANUAL_CMD_CTRL flag (using ENGINE_set_flags()). Otherwise
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166 * the ENGINE_ctrl() code handles this on the ENGINE's behalf using the
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167 * cmd_defns data (set using ENGINE_set_cmd_defns()). This means an ENGINE's
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168 * ctrl() handler need only implement its own commands - the above "meta"
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169 * commands will be taken care of.
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170 */
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171
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172 /*
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173 * Returns non-zero if the supplied ENGINE has a ctrl() handler. If "not",
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174 * then all the remaining control commands will return failure, so it is
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175 * worth checking this first if the caller is trying to "discover" the
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176 * engine's capabilities and doesn't want errors generated unnecessarily.
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177 */
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178 # define ENGINE_CTRL_HAS_CTRL_FUNCTION 10
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179 /*
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180 * Returns a positive command number for the first command supported by the
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181 * engine. Returns zero if no ctrl commands are supported.
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182 */
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183 # define ENGINE_CTRL_GET_FIRST_CMD_TYPE 11
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184 /*
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185 * The 'long' argument specifies a command implemented by the engine, and the
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186 * return value is the next command supported, or zero if there are no more.
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187 */
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188 # define ENGINE_CTRL_GET_NEXT_CMD_TYPE 12
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189 /*
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190 * The 'void*' argument is a command name (cast from 'const char *'), and the
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191 * return value is the command that corresponds to it.
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192 */
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193 # define ENGINE_CTRL_GET_CMD_FROM_NAME 13
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194 /*
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195 * The next two allow a command to be converted into its corresponding string
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196 * form. In each case, the 'long' argument supplies the command. In the
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197 * NAME_LEN case, the return value is the length of the command name (not
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198 * counting a trailing EOL). In the NAME case, the 'void*' argument must be a
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199 * string buffer large enough, and it will be populated with the name of the
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200 * command (WITH a trailing EOL).
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201 */
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202 # define ENGINE_CTRL_GET_NAME_LEN_FROM_CMD 14
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203 # define ENGINE_CTRL_GET_NAME_FROM_CMD 15
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204 /* The next two are similar but give a "short description" of a command. */
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205 # define ENGINE_CTRL_GET_DESC_LEN_FROM_CMD 16
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206 # define ENGINE_CTRL_GET_DESC_FROM_CMD 17
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207 /*
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208 * With this command, the return value is the OR'd combination of
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209 * ENGINE_CMD_FLAG_*** values that indicate what kind of input a given
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210 * engine-specific ctrl command expects.
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211 */
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212 # define ENGINE_CTRL_GET_CMD_FLAGS 18
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213
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214 /*
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215 * ENGINE implementations should start the numbering of their own control
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216 * commands from this value. (ie. ENGINE_CMD_BASE, ENGINE_CMD_BASE + 1, etc).
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217 */
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218 # define ENGINE_CMD_BASE 200
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219
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220 /*
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221 * NB: These 2 nCipher "chil" control commands are deprecated, and their
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222 * functionality is now available through ENGINE-specific control commands
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223 * (exposed through the above-mentioned 'CMD'-handling). Code using these 2
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224 * commands should be migrated to the more general command handling before
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225 * these are removed.
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226 */
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227
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228 /* Flags specific to the nCipher "chil" engine */
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229 # define ENGINE_CTRL_CHIL_SET_FORKCHECK 100
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230 /*
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231 * Depending on the value of the (long)i argument, this sets or
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232 * unsets the SimpleForkCheck flag in the CHIL API to enable or
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233 * disable checking and workarounds for applications that fork().
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234 */
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235 # define ENGINE_CTRL_CHIL_NO_LOCKING 101
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236 /*
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237 * This prevents the initialisation function from providing mutex
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238 * callbacks to the nCipher library.
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239 */
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240
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241 /*
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242 * If an ENGINE supports its own specific control commands and wishes the
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243 * framework to handle the above 'ENGINE_CMD_***'-manipulation commands on
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244 * its behalf, it should supply a null-terminated array of ENGINE_CMD_DEFN
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245 * entries to ENGINE_set_cmd_defns(). It should also implement a ctrl()
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246 * handler that supports the stated commands (ie. the "cmd_num" entries as
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247 * described by the array). NB: The array must be ordered in increasing order
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248 * of cmd_num. "null-terminated" means that the last ENGINE_CMD_DEFN element
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249 * has cmd_num set to zero and/or cmd_name set to NULL.
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250 */
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251 typedef struct ENGINE_CMD_DEFN_st {
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252 unsigned int cmd_num; /* The command number */
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253 const char *cmd_name; /* The command name itself */
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254 const char *cmd_desc; /* A short description of the command */
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255 unsigned int cmd_flags; /* The input the command expects */
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256 } ENGINE_CMD_DEFN;
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257
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258 /* Generic function pointer */
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259 typedef int (*ENGINE_GEN_FUNC_PTR) (void);
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260 /* Generic function pointer taking no arguments */
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261 typedef int (*ENGINE_GEN_INT_FUNC_PTR) (ENGINE *);
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262 /* Specific control function pointer */
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263 typedef int (*ENGINE_CTRL_FUNC_PTR) (ENGINE *, int, long, void *,
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264 void (*f) (void));
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265 /* Generic load_key function pointer */
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266 typedef EVP_PKEY *(*ENGINE_LOAD_KEY_PTR)(ENGINE *, const char *,
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267 UI_METHOD *ui_method,
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268 void *callback_data);
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269 typedef int (*ENGINE_SSL_CLIENT_CERT_PTR) (ENGINE *, SSL *ssl,
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270 STACK_OF(X509_NAME) *ca_dn,
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271 X509 **pcert, EVP_PKEY **pkey,
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272 STACK_OF(X509) **pother,
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273 UI_METHOD *ui_method,
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274 void *callback_data);
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jpayne@69
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275 /*-
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276 * These callback types are for an ENGINE's handler for cipher and digest logic.
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277 * These handlers have these prototypes;
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jpayne@69
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278 * int foo(ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid);
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jpayne@69
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279 * int foo(ENGINE *e, const EVP_MD **digest, const int **nids, int nid);
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jpayne@69
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280 * Looking at how to implement these handlers in the case of cipher support, if
|
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jpayne@69
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281 * the framework wants the EVP_CIPHER for 'nid', it will call;
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jpayne@69
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282 * foo(e, &p_evp_cipher, NULL, nid); (return zero for failure)
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jpayne@69
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283 * If the framework wants a list of supported 'nid's, it will call;
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jpayne@69
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284 * foo(e, NULL, &p_nids, 0); (returns number of 'nids' or -1 for error)
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285 */
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jpayne@69
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286 /*
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jpayne@69
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287 * Returns to a pointer to the array of supported cipher 'nid's. If the
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jpayne@69
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288 * second parameter is non-NULL it is set to the size of the returned array.
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jpayne@69
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289 */
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jpayne@69
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290 typedef int (*ENGINE_CIPHERS_PTR) (ENGINE *, const EVP_CIPHER **,
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jpayne@69
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291 const int **, int);
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jpayne@69
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292 typedef int (*ENGINE_DIGESTS_PTR) (ENGINE *, const EVP_MD **, const int **,
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293 int);
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294 typedef int (*ENGINE_PKEY_METHS_PTR) (ENGINE *, EVP_PKEY_METHOD **,
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295 const int **, int);
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jpayne@69
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296 typedef int (*ENGINE_PKEY_ASN1_METHS_PTR) (ENGINE *, EVP_PKEY_ASN1_METHOD **,
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jpayne@69
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297 const int **, int);
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jpayne@69
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298 /*
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jpayne@69
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299 * STRUCTURE functions ... all of these functions deal with pointers to
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jpayne@69
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300 * ENGINE structures where the pointers have a "structural reference". This
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jpayne@69
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301 * means that their reference is to allowed access to the structure but it
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jpayne@69
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302 * does not imply that the structure is functional. To simply increment or
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jpayne@69
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303 * decrement the structural reference count, use ENGINE_by_id and
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jpayne@69
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304 * ENGINE_free. NB: This is not required when iterating using ENGINE_get_next
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jpayne@69
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305 * as it will automatically decrement the structural reference count of the
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jpayne@69
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306 * "current" ENGINE and increment the structural reference count of the
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jpayne@69
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307 * ENGINE it returns (unless it is NULL).
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jpayne@69
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308 */
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309
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jpayne@69
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310 /* Get the first/last "ENGINE" type available. */
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311 ENGINE *ENGINE_get_first(void);
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312 ENGINE *ENGINE_get_last(void);
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jpayne@69
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313 /* Iterate to the next/previous "ENGINE" type (NULL = end of the list). */
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314 ENGINE *ENGINE_get_next(ENGINE *e);
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jpayne@69
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315 ENGINE *ENGINE_get_prev(ENGINE *e);
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jpayne@69
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316 /* Add another "ENGINE" type into the array. */
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jpayne@69
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317 int ENGINE_add(ENGINE *e);
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jpayne@69
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318 /* Remove an existing "ENGINE" type from the array. */
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jpayne@69
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319 int ENGINE_remove(ENGINE *e);
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jpayne@69
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320 /* Retrieve an engine from the list by its unique "id" value. */
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jpayne@69
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321 ENGINE *ENGINE_by_id(const char *id);
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322
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jpayne@69
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323 #if OPENSSL_API_COMPAT < 0x10100000L
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jpayne@69
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324 # define ENGINE_load_openssl() \
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325 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_OPENSSL, NULL)
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jpayne@69
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326 # define ENGINE_load_dynamic() \
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327 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_DYNAMIC, NULL)
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jpayne@69
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328 # ifndef OPENSSL_NO_STATIC_ENGINE
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329 # define ENGINE_load_padlock() \
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330 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_PADLOCK, NULL)
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jpayne@69
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331 # define ENGINE_load_capi() \
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332 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_CAPI, NULL)
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jpayne@69
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333 # define ENGINE_load_afalg() \
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334 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_AFALG, NULL)
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jpayne@69
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335 # endif
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jpayne@69
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336 # define ENGINE_load_cryptodev() \
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337 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_CRYPTODEV, NULL)
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jpayne@69
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338 # define ENGINE_load_rdrand() \
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jpayne@69
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339 OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_RDRAND, NULL)
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jpayne@69
|
340 #endif
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jpayne@69
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341 void ENGINE_load_builtin_engines(void);
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jpayne@69
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342
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jpayne@69
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343 /*
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jpayne@69
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344 * Get and set global flags (ENGINE_TABLE_FLAG_***) for the implementation
|
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jpayne@69
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345 * "registry" handling.
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jpayne@69
|
346 */
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jpayne@69
|
347 unsigned int ENGINE_get_table_flags(void);
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jpayne@69
|
348 void ENGINE_set_table_flags(unsigned int flags);
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jpayne@69
|
349
|
|
jpayne@69
|
350 /*- Manage registration of ENGINEs per "table". For each type, there are 3
|
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jpayne@69
|
351 * functions;
|
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jpayne@69
|
352 * ENGINE_register_***(e) - registers the implementation from 'e' (if it has one)
|
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jpayne@69
|
353 * ENGINE_unregister_***(e) - unregister the implementation from 'e'
|
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jpayne@69
|
354 * ENGINE_register_all_***() - call ENGINE_register_***() for each 'e' in the list
|
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jpayne@69
|
355 * Cleanup is automatically registered from each table when required.
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jpayne@69
|
356 */
|
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jpayne@69
|
357
|
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jpayne@69
|
358 int ENGINE_register_RSA(ENGINE *e);
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jpayne@69
|
359 void ENGINE_unregister_RSA(ENGINE *e);
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jpayne@69
|
360 void ENGINE_register_all_RSA(void);
|
|
jpayne@69
|
361
|
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jpayne@69
|
362 int ENGINE_register_DSA(ENGINE *e);
|
|
jpayne@69
|
363 void ENGINE_unregister_DSA(ENGINE *e);
|
|
jpayne@69
|
364 void ENGINE_register_all_DSA(void);
|
|
jpayne@69
|
365
|
|
jpayne@69
|
366 int ENGINE_register_EC(ENGINE *e);
|
|
jpayne@69
|
367 void ENGINE_unregister_EC(ENGINE *e);
|
|
jpayne@69
|
368 void ENGINE_register_all_EC(void);
|
|
jpayne@69
|
369
|
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jpayne@69
|
370 int ENGINE_register_DH(ENGINE *e);
|
|
jpayne@69
|
371 void ENGINE_unregister_DH(ENGINE *e);
|
|
jpayne@69
|
372 void ENGINE_register_all_DH(void);
|
|
jpayne@69
|
373
|
|
jpayne@69
|
374 int ENGINE_register_RAND(ENGINE *e);
|
|
jpayne@69
|
375 void ENGINE_unregister_RAND(ENGINE *e);
|
|
jpayne@69
|
376 void ENGINE_register_all_RAND(void);
|
|
jpayne@69
|
377
|
|
jpayne@69
|
378 int ENGINE_register_ciphers(ENGINE *e);
|
|
jpayne@69
|
379 void ENGINE_unregister_ciphers(ENGINE *e);
|
|
jpayne@69
|
380 void ENGINE_register_all_ciphers(void);
|
|
jpayne@69
|
381
|
|
jpayne@69
|
382 int ENGINE_register_digests(ENGINE *e);
|
|
jpayne@69
|
383 void ENGINE_unregister_digests(ENGINE *e);
|
|
jpayne@69
|
384 void ENGINE_register_all_digests(void);
|
|
jpayne@69
|
385
|
|
jpayne@69
|
386 int ENGINE_register_pkey_meths(ENGINE *e);
|
|
jpayne@69
|
387 void ENGINE_unregister_pkey_meths(ENGINE *e);
|
|
jpayne@69
|
388 void ENGINE_register_all_pkey_meths(void);
|
|
jpayne@69
|
389
|
|
jpayne@69
|
390 int ENGINE_register_pkey_asn1_meths(ENGINE *e);
|
|
jpayne@69
|
391 void ENGINE_unregister_pkey_asn1_meths(ENGINE *e);
|
|
jpayne@69
|
392 void ENGINE_register_all_pkey_asn1_meths(void);
|
|
jpayne@69
|
393
|
|
jpayne@69
|
394 /*
|
|
jpayne@69
|
395 * These functions register all support from the above categories. Note, use
|
|
jpayne@69
|
396 * of these functions can result in static linkage of code your application
|
|
jpayne@69
|
397 * may not need. If you only need a subset of functionality, consider using
|
|
jpayne@69
|
398 * more selective initialisation.
|
|
jpayne@69
|
399 */
|
|
jpayne@69
|
400 int ENGINE_register_complete(ENGINE *e);
|
|
jpayne@69
|
401 int ENGINE_register_all_complete(void);
|
|
jpayne@69
|
402
|
|
jpayne@69
|
403 /*
|
|
jpayne@69
|
404 * Send parameterised control commands to the engine. The possibilities to
|
|
jpayne@69
|
405 * send down an integer, a pointer to data or a function pointer are
|
|
jpayne@69
|
406 * provided. Any of the parameters may or may not be NULL, depending on the
|
|
jpayne@69
|
407 * command number. In actuality, this function only requires a structural
|
|
jpayne@69
|
408 * (rather than functional) reference to an engine, but many control commands
|
|
jpayne@69
|
409 * may require the engine be functional. The caller should be aware of trying
|
|
jpayne@69
|
410 * commands that require an operational ENGINE, and only use functional
|
|
jpayne@69
|
411 * references in such situations.
|
|
jpayne@69
|
412 */
|
|
jpayne@69
|
413 int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void));
|
|
jpayne@69
|
414
|
|
jpayne@69
|
415 /*
|
|
jpayne@69
|
416 * This function tests if an ENGINE-specific command is usable as a
|
|
jpayne@69
|
417 * "setting". Eg. in an application's config file that gets processed through
|
|
jpayne@69
|
418 * ENGINE_ctrl_cmd_string(). If this returns zero, it is not available to
|
|
jpayne@69
|
419 * ENGINE_ctrl_cmd_string(), only ENGINE_ctrl().
|
|
jpayne@69
|
420 */
|
|
jpayne@69
|
421 int ENGINE_cmd_is_executable(ENGINE *e, int cmd);
|
|
jpayne@69
|
422
|
|
jpayne@69
|
423 /*
|
|
jpayne@69
|
424 * This function works like ENGINE_ctrl() with the exception of taking a
|
|
jpayne@69
|
425 * command name instead of a command number, and can handle optional
|
|
jpayne@69
|
426 * commands. See the comment on ENGINE_ctrl_cmd_string() for an explanation
|
|
jpayne@69
|
427 * on how to use the cmd_name and cmd_optional.
|
|
jpayne@69
|
428 */
|
|
jpayne@69
|
429 int ENGINE_ctrl_cmd(ENGINE *e, const char *cmd_name,
|
|
jpayne@69
|
430 long i, void *p, void (*f) (void), int cmd_optional);
|
|
jpayne@69
|
431
|
|
jpayne@69
|
432 /*
|
|
jpayne@69
|
433 * This function passes a command-name and argument to an ENGINE. The
|
|
jpayne@69
|
434 * cmd_name is converted to a command number and the control command is
|
|
jpayne@69
|
435 * called using 'arg' as an argument (unless the ENGINE doesn't support such
|
|
jpayne@69
|
436 * a command, in which case no control command is called). The command is
|
|
jpayne@69
|
437 * checked for input flags, and if necessary the argument will be converted
|
|
jpayne@69
|
438 * to a numeric value. If cmd_optional is non-zero, then if the ENGINE
|
|
jpayne@69
|
439 * doesn't support the given cmd_name the return value will be success
|
|
jpayne@69
|
440 * anyway. This function is intended for applications to use so that users
|
|
jpayne@69
|
441 * (or config files) can supply engine-specific config data to the ENGINE at
|
|
jpayne@69
|
442 * run-time to control behaviour of specific engines. As such, it shouldn't
|
|
jpayne@69
|
443 * be used for calling ENGINE_ctrl() functions that return data, deal with
|
|
jpayne@69
|
444 * binary data, or that are otherwise supposed to be used directly through
|
|
jpayne@69
|
445 * ENGINE_ctrl() in application code. Any "return" data from an ENGINE_ctrl()
|
|
jpayne@69
|
446 * operation in this function will be lost - the return value is interpreted
|
|
jpayne@69
|
447 * as failure if the return value is zero, success otherwise, and this
|
|
jpayne@69
|
448 * function returns a boolean value as a result. In other words, vendors of
|
|
jpayne@69
|
449 * 'ENGINE'-enabled devices should write ENGINE implementations with
|
|
jpayne@69
|
450 * parameterisations that work in this scheme, so that compliant ENGINE-based
|
|
jpayne@69
|
451 * applications can work consistently with the same configuration for the
|
|
jpayne@69
|
452 * same ENGINE-enabled devices, across applications.
|
|
jpayne@69
|
453 */
|
|
jpayne@69
|
454 int ENGINE_ctrl_cmd_string(ENGINE *e, const char *cmd_name, const char *arg,
|
|
jpayne@69
|
455 int cmd_optional);
|
|
jpayne@69
|
456
|
|
jpayne@69
|
457 /*
|
|
jpayne@69
|
458 * These functions are useful for manufacturing new ENGINE structures. They
|
|
jpayne@69
|
459 * don't address reference counting at all - one uses them to populate an
|
|
jpayne@69
|
460 * ENGINE structure with personalised implementations of things prior to
|
|
jpayne@69
|
461 * using it directly or adding it to the builtin ENGINE list in OpenSSL.
|
|
jpayne@69
|
462 * These are also here so that the ENGINE structure doesn't have to be
|
|
jpayne@69
|
463 * exposed and break binary compatibility!
|
|
jpayne@69
|
464 */
|
|
jpayne@69
|
465 ENGINE *ENGINE_new(void);
|
|
jpayne@69
|
466 int ENGINE_free(ENGINE *e);
|
|
jpayne@69
|
467 int ENGINE_up_ref(ENGINE *e);
|
|
jpayne@69
|
468 int ENGINE_set_id(ENGINE *e, const char *id);
|
|
jpayne@69
|
469 int ENGINE_set_name(ENGINE *e, const char *name);
|
|
jpayne@69
|
470 int ENGINE_set_RSA(ENGINE *e, const RSA_METHOD *rsa_meth);
|
|
jpayne@69
|
471 int ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth);
|
|
jpayne@69
|
472 int ENGINE_set_EC(ENGINE *e, const EC_KEY_METHOD *ecdsa_meth);
|
|
jpayne@69
|
473 int ENGINE_set_DH(ENGINE *e, const DH_METHOD *dh_meth);
|
|
jpayne@69
|
474 int ENGINE_set_RAND(ENGINE *e, const RAND_METHOD *rand_meth);
|
|
jpayne@69
|
475 int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f);
|
|
jpayne@69
|
476 int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f);
|
|
jpayne@69
|
477 int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f);
|
|
jpayne@69
|
478 int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f);
|
|
jpayne@69
|
479 int ENGINE_set_load_privkey_function(ENGINE *e,
|
|
jpayne@69
|
480 ENGINE_LOAD_KEY_PTR loadpriv_f);
|
|
jpayne@69
|
481 int ENGINE_set_load_pubkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpub_f);
|
|
jpayne@69
|
482 int ENGINE_set_load_ssl_client_cert_function(ENGINE *e,
|
|
jpayne@69
|
483 ENGINE_SSL_CLIENT_CERT_PTR
|
|
jpayne@69
|
484 loadssl_f);
|
|
jpayne@69
|
485 int ENGINE_set_ciphers(ENGINE *e, ENGINE_CIPHERS_PTR f);
|
|
jpayne@69
|
486 int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f);
|
|
jpayne@69
|
487 int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f);
|
|
jpayne@69
|
488 int ENGINE_set_pkey_asn1_meths(ENGINE *e, ENGINE_PKEY_ASN1_METHS_PTR f);
|
|
jpayne@69
|
489 int ENGINE_set_flags(ENGINE *e, int flags);
|
|
jpayne@69
|
490 int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns);
|
|
jpayne@69
|
491 /* These functions allow control over any per-structure ENGINE data. */
|
|
jpayne@69
|
492 #define ENGINE_get_ex_new_index(l, p, newf, dupf, freef) \
|
|
jpayne@69
|
493 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ENGINE, l, p, newf, dupf, freef)
|
|
jpayne@69
|
494 int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg);
|
|
jpayne@69
|
495 void *ENGINE_get_ex_data(const ENGINE *e, int idx);
|
|
jpayne@69
|
496
|
|
jpayne@69
|
497 #if OPENSSL_API_COMPAT < 0x10100000L
|
|
jpayne@69
|
498 /*
|
|
jpayne@69
|
499 * This function previously cleaned up anything that needs it. Auto-deinit will
|
|
jpayne@69
|
500 * now take care of it so it is no longer required to call this function.
|
|
jpayne@69
|
501 */
|
|
jpayne@69
|
502 # define ENGINE_cleanup() while(0) continue
|
|
jpayne@69
|
503 #endif
|
|
jpayne@69
|
504
|
|
jpayne@69
|
505 /*
|
|
jpayne@69
|
506 * These return values from within the ENGINE structure. These can be useful
|
|
jpayne@69
|
507 * with functional references as well as structural references - it depends
|
|
jpayne@69
|
508 * which you obtained. Using the result for functional purposes if you only
|
|
jpayne@69
|
509 * obtained a structural reference may be problematic!
|
|
jpayne@69
|
510 */
|
|
jpayne@69
|
511 const char *ENGINE_get_id(const ENGINE *e);
|
|
jpayne@69
|
512 const char *ENGINE_get_name(const ENGINE *e);
|
|
jpayne@69
|
513 const RSA_METHOD *ENGINE_get_RSA(const ENGINE *e);
|
|
jpayne@69
|
514 const DSA_METHOD *ENGINE_get_DSA(const ENGINE *e);
|
|
jpayne@69
|
515 const EC_KEY_METHOD *ENGINE_get_EC(const ENGINE *e);
|
|
jpayne@69
|
516 const DH_METHOD *ENGINE_get_DH(const ENGINE *e);
|
|
jpayne@69
|
517 const RAND_METHOD *ENGINE_get_RAND(const ENGINE *e);
|
|
jpayne@69
|
518 ENGINE_GEN_INT_FUNC_PTR ENGINE_get_destroy_function(const ENGINE *e);
|
|
jpayne@69
|
519 ENGINE_GEN_INT_FUNC_PTR ENGINE_get_init_function(const ENGINE *e);
|
|
jpayne@69
|
520 ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e);
|
|
jpayne@69
|
521 ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e);
|
|
jpayne@69
|
522 ENGINE_LOAD_KEY_PTR ENGINE_get_load_privkey_function(const ENGINE *e);
|
|
jpayne@69
|
523 ENGINE_LOAD_KEY_PTR ENGINE_get_load_pubkey_function(const ENGINE *e);
|
|
jpayne@69
|
524 ENGINE_SSL_CLIENT_CERT_PTR ENGINE_get_ssl_client_cert_function(const ENGINE
|
|
jpayne@69
|
525 *e);
|
|
jpayne@69
|
526 ENGINE_CIPHERS_PTR ENGINE_get_ciphers(const ENGINE *e);
|
|
jpayne@69
|
527 ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e);
|
|
jpayne@69
|
528 ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e);
|
|
jpayne@69
|
529 ENGINE_PKEY_ASN1_METHS_PTR ENGINE_get_pkey_asn1_meths(const ENGINE *e);
|
|
jpayne@69
|
530 const EVP_CIPHER *ENGINE_get_cipher(ENGINE *e, int nid);
|
|
jpayne@69
|
531 const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid);
|
|
jpayne@69
|
532 const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid);
|
|
jpayne@69
|
533 const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid);
|
|
jpayne@69
|
534 const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth_str(ENGINE *e,
|
|
jpayne@69
|
535 const char *str,
|
|
jpayne@69
|
536 int len);
|
|
jpayne@69
|
537 const EVP_PKEY_ASN1_METHOD *ENGINE_pkey_asn1_find_str(ENGINE **pe,
|
|
jpayne@69
|
538 const char *str,
|
|
jpayne@69
|
539 int len);
|
|
jpayne@69
|
540 const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e);
|
|
jpayne@69
|
541 int ENGINE_get_flags(const ENGINE *e);
|
|
jpayne@69
|
542
|
|
jpayne@69
|
543 /*
|
|
jpayne@69
|
544 * FUNCTIONAL functions. These functions deal with ENGINE structures that
|
|
jpayne@69
|
545 * have (or will) be initialised for use. Broadly speaking, the structural
|
|
jpayne@69
|
546 * functions are useful for iterating the list of available engine types,
|
|
jpayne@69
|
547 * creating new engine types, and other "list" operations. These functions
|
|
jpayne@69
|
548 * actually deal with ENGINEs that are to be used. As such these functions
|
|
jpayne@69
|
549 * can fail (if applicable) when particular engines are unavailable - eg. if
|
|
jpayne@69
|
550 * a hardware accelerator is not attached or not functioning correctly. Each
|
|
jpayne@69
|
551 * ENGINE has 2 reference counts; structural and functional. Every time a
|
|
jpayne@69
|
552 * functional reference is obtained or released, a corresponding structural
|
|
jpayne@69
|
553 * reference is automatically obtained or released too.
|
|
jpayne@69
|
554 */
|
|
jpayne@69
|
555
|
|
jpayne@69
|
556 /*
|
|
jpayne@69
|
557 * Initialise a engine type for use (or up its reference count if it's
|
|
jpayne@69
|
558 * already in use). This will fail if the engine is not currently operational
|
|
jpayne@69
|
559 * and cannot initialise.
|
|
jpayne@69
|
560 */
|
|
jpayne@69
|
561 int ENGINE_init(ENGINE *e);
|
|
jpayne@69
|
562 /*
|
|
jpayne@69
|
563 * Free a functional reference to a engine type. This does not require a
|
|
jpayne@69
|
564 * corresponding call to ENGINE_free as it also releases a structural
|
|
jpayne@69
|
565 * reference.
|
|
jpayne@69
|
566 */
|
|
jpayne@69
|
567 int ENGINE_finish(ENGINE *e);
|
|
jpayne@69
|
568
|
|
jpayne@69
|
569 /*
|
|
jpayne@69
|
570 * The following functions handle keys that are stored in some secondary
|
|
jpayne@69
|
571 * location, handled by the engine. The storage may be on a card or
|
|
jpayne@69
|
572 * whatever.
|
|
jpayne@69
|
573 */
|
|
jpayne@69
|
574 EVP_PKEY *ENGINE_load_private_key(ENGINE *e, const char *key_id,
|
|
jpayne@69
|
575 UI_METHOD *ui_method, void *callback_data);
|
|
jpayne@69
|
576 EVP_PKEY *ENGINE_load_public_key(ENGINE *e, const char *key_id,
|
|
jpayne@69
|
577 UI_METHOD *ui_method, void *callback_data);
|
|
jpayne@69
|
578 int ENGINE_load_ssl_client_cert(ENGINE *e, SSL *s,
|
|
jpayne@69
|
579 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
|
|
jpayne@69
|
580 EVP_PKEY **ppkey, STACK_OF(X509) **pother,
|
|
jpayne@69
|
581 UI_METHOD *ui_method, void *callback_data);
|
|
jpayne@69
|
582
|
|
jpayne@69
|
583 /*
|
|
jpayne@69
|
584 * This returns a pointer for the current ENGINE structure that is (by
|
|
jpayne@69
|
585 * default) performing any RSA operations. The value returned is an
|
|
jpayne@69
|
586 * incremented reference, so it should be free'd (ENGINE_finish) before it is
|
|
jpayne@69
|
587 * discarded.
|
|
jpayne@69
|
588 */
|
|
jpayne@69
|
589 ENGINE *ENGINE_get_default_RSA(void);
|
|
jpayne@69
|
590 /* Same for the other "methods" */
|
|
jpayne@69
|
591 ENGINE *ENGINE_get_default_DSA(void);
|
|
jpayne@69
|
592 ENGINE *ENGINE_get_default_EC(void);
|
|
jpayne@69
|
593 ENGINE *ENGINE_get_default_DH(void);
|
|
jpayne@69
|
594 ENGINE *ENGINE_get_default_RAND(void);
|
|
jpayne@69
|
595 /*
|
|
jpayne@69
|
596 * These functions can be used to get a functional reference to perform
|
|
jpayne@69
|
597 * ciphering or digesting corresponding to "nid".
|
|
jpayne@69
|
598 */
|
|
jpayne@69
|
599 ENGINE *ENGINE_get_cipher_engine(int nid);
|
|
jpayne@69
|
600 ENGINE *ENGINE_get_digest_engine(int nid);
|
|
jpayne@69
|
601 ENGINE *ENGINE_get_pkey_meth_engine(int nid);
|
|
jpayne@69
|
602 ENGINE *ENGINE_get_pkey_asn1_meth_engine(int nid);
|
|
jpayne@69
|
603
|
|
jpayne@69
|
604 /*
|
|
jpayne@69
|
605 * This sets a new default ENGINE structure for performing RSA operations. If
|
|
jpayne@69
|
606 * the result is non-zero (success) then the ENGINE structure will have had
|
|
jpayne@69
|
607 * its reference count up'd so the caller should still free their own
|
|
jpayne@69
|
608 * reference 'e'.
|
|
jpayne@69
|
609 */
|
|
jpayne@69
|
610 int ENGINE_set_default_RSA(ENGINE *e);
|
|
jpayne@69
|
611 int ENGINE_set_default_string(ENGINE *e, const char *def_list);
|
|
jpayne@69
|
612 /* Same for the other "methods" */
|
|
jpayne@69
|
613 int ENGINE_set_default_DSA(ENGINE *e);
|
|
jpayne@69
|
614 int ENGINE_set_default_EC(ENGINE *e);
|
|
jpayne@69
|
615 int ENGINE_set_default_DH(ENGINE *e);
|
|
jpayne@69
|
616 int ENGINE_set_default_RAND(ENGINE *e);
|
|
jpayne@69
|
617 int ENGINE_set_default_ciphers(ENGINE *e);
|
|
jpayne@69
|
618 int ENGINE_set_default_digests(ENGINE *e);
|
|
jpayne@69
|
619 int ENGINE_set_default_pkey_meths(ENGINE *e);
|
|
jpayne@69
|
620 int ENGINE_set_default_pkey_asn1_meths(ENGINE *e);
|
|
jpayne@69
|
621
|
|
jpayne@69
|
622 /*
|
|
jpayne@69
|
623 * The combination "set" - the flags are bitwise "OR"d from the
|
|
jpayne@69
|
624 * ENGINE_METHOD_*** defines above. As with the "ENGINE_register_complete()"
|
|
jpayne@69
|
625 * function, this function can result in unnecessary static linkage. If your
|
|
jpayne@69
|
626 * application requires only specific functionality, consider using more
|
|
jpayne@69
|
627 * selective functions.
|
|
jpayne@69
|
628 */
|
|
jpayne@69
|
629 int ENGINE_set_default(ENGINE *e, unsigned int flags);
|
|
jpayne@69
|
630
|
|
jpayne@69
|
631 void ENGINE_add_conf_module(void);
|
|
jpayne@69
|
632
|
|
jpayne@69
|
633 /* Deprecated functions ... */
|
|
jpayne@69
|
634 /* int ENGINE_clear_defaults(void); */
|
|
jpayne@69
|
635
|
|
jpayne@69
|
636 /**************************/
|
|
jpayne@69
|
637 /* DYNAMIC ENGINE SUPPORT */
|
|
jpayne@69
|
638 /**************************/
|
|
jpayne@69
|
639
|
|
jpayne@69
|
640 /* Binary/behaviour compatibility levels */
|
|
jpayne@69
|
641 # define OSSL_DYNAMIC_VERSION (unsigned long)0x00030000
|
|
jpayne@69
|
642 /*
|
|
jpayne@69
|
643 * Binary versions older than this are too old for us (whether we're a loader
|
|
jpayne@69
|
644 * or a loadee)
|
|
jpayne@69
|
645 */
|
|
jpayne@69
|
646 # define OSSL_DYNAMIC_OLDEST (unsigned long)0x00030000
|
|
jpayne@69
|
647
|
|
jpayne@69
|
648 /*
|
|
jpayne@69
|
649 * When compiling an ENGINE entirely as an external shared library, loadable
|
|
jpayne@69
|
650 * by the "dynamic" ENGINE, these types are needed. The 'dynamic_fns'
|
|
jpayne@69
|
651 * structure type provides the calling application's (or library's) error
|
|
jpayne@69
|
652 * functionality and memory management function pointers to the loaded
|
|
jpayne@69
|
653 * library. These should be used/set in the loaded library code so that the
|
|
jpayne@69
|
654 * loading application's 'state' will be used/changed in all operations. The
|
|
jpayne@69
|
655 * 'static_state' pointer allows the loaded library to know if it shares the
|
|
jpayne@69
|
656 * same static data as the calling application (or library), and thus whether
|
|
jpayne@69
|
657 * these callbacks need to be set or not.
|
|
jpayne@69
|
658 */
|
|
jpayne@69
|
659 typedef void *(*dyn_MEM_malloc_fn) (size_t, const char *, int);
|
|
jpayne@69
|
660 typedef void *(*dyn_MEM_realloc_fn) (void *, size_t, const char *, int);
|
|
jpayne@69
|
661 typedef void (*dyn_MEM_free_fn) (void *, const char *, int);
|
|
jpayne@69
|
662 typedef struct st_dynamic_MEM_fns {
|
|
jpayne@69
|
663 dyn_MEM_malloc_fn malloc_fn;
|
|
jpayne@69
|
664 dyn_MEM_realloc_fn realloc_fn;
|
|
jpayne@69
|
665 dyn_MEM_free_fn free_fn;
|
|
jpayne@69
|
666 } dynamic_MEM_fns;
|
|
jpayne@69
|
667 /*
|
|
jpayne@69
|
668 * FIXME: Perhaps the memory and locking code (crypto.h) should declare and
|
|
jpayne@69
|
669 * use these types so we (and any other dependent code) can simplify a bit??
|
|
jpayne@69
|
670 */
|
|
jpayne@69
|
671 /* The top-level structure */
|
|
jpayne@69
|
672 typedef struct st_dynamic_fns {
|
|
jpayne@69
|
673 void *static_state;
|
|
jpayne@69
|
674 dynamic_MEM_fns mem_fns;
|
|
jpayne@69
|
675 } dynamic_fns;
|
|
jpayne@69
|
676
|
|
jpayne@69
|
677 /*
|
|
jpayne@69
|
678 * The version checking function should be of this prototype. NB: The
|
|
jpayne@69
|
679 * ossl_version value passed in is the OSSL_DYNAMIC_VERSION of the loading
|
|
jpayne@69
|
680 * code. If this function returns zero, it indicates a (potential) version
|
|
jpayne@69
|
681 * incompatibility and the loaded library doesn't believe it can proceed.
|
|
jpayne@69
|
682 * Otherwise, the returned value is the (latest) version supported by the
|
|
jpayne@69
|
683 * loading library. The loader may still decide that the loaded code's
|
|
jpayne@69
|
684 * version is unsatisfactory and could veto the load. The function is
|
|
jpayne@69
|
685 * expected to be implemented with the symbol name "v_check", and a default
|
|
jpayne@69
|
686 * implementation can be fully instantiated with
|
|
jpayne@69
|
687 * IMPLEMENT_DYNAMIC_CHECK_FN().
|
|
jpayne@69
|
688 */
|
|
jpayne@69
|
689 typedef unsigned long (*dynamic_v_check_fn) (unsigned long ossl_version);
|
|
jpayne@69
|
690 # define IMPLEMENT_DYNAMIC_CHECK_FN() \
|
|
jpayne@69
|
691 OPENSSL_EXPORT unsigned long v_check(unsigned long v); \
|
|
jpayne@69
|
692 OPENSSL_EXPORT unsigned long v_check(unsigned long v) { \
|
|
jpayne@69
|
693 if (v >= OSSL_DYNAMIC_OLDEST) return OSSL_DYNAMIC_VERSION; \
|
|
jpayne@69
|
694 return 0; }
|
|
jpayne@69
|
695
|
|
jpayne@69
|
696 /*
|
|
jpayne@69
|
697 * This function is passed the ENGINE structure to initialise with its own
|
|
jpayne@69
|
698 * function and command settings. It should not adjust the structural or
|
|
jpayne@69
|
699 * functional reference counts. If this function returns zero, (a) the load
|
|
jpayne@69
|
700 * will be aborted, (b) the previous ENGINE state will be memcpy'd back onto
|
|
jpayne@69
|
701 * the structure, and (c) the shared library will be unloaded. So
|
|
jpayne@69
|
702 * implementations should do their own internal cleanup in failure
|
|
jpayne@69
|
703 * circumstances otherwise they could leak. The 'id' parameter, if non-NULL,
|
|
jpayne@69
|
704 * represents the ENGINE id that the loader is looking for. If this is NULL,
|
|
jpayne@69
|
705 * the shared library can choose to return failure or to initialise a
|
|
jpayne@69
|
706 * 'default' ENGINE. If non-NULL, the shared library must initialise only an
|
|
jpayne@69
|
707 * ENGINE matching the passed 'id'. The function is expected to be
|
|
jpayne@69
|
708 * implemented with the symbol name "bind_engine". A standard implementation
|
|
jpayne@69
|
709 * can be instantiated with IMPLEMENT_DYNAMIC_BIND_FN(fn) where the parameter
|
|
jpayne@69
|
710 * 'fn' is a callback function that populates the ENGINE structure and
|
|
jpayne@69
|
711 * returns an int value (zero for failure). 'fn' should have prototype;
|
|
jpayne@69
|
712 * [static] int fn(ENGINE *e, const char *id);
|
|
jpayne@69
|
713 */
|
|
jpayne@69
|
714 typedef int (*dynamic_bind_engine) (ENGINE *e, const char *id,
|
|
jpayne@69
|
715 const dynamic_fns *fns);
|
|
jpayne@69
|
716 # define IMPLEMENT_DYNAMIC_BIND_FN(fn) \
|
|
jpayne@69
|
717 OPENSSL_EXPORT \
|
|
jpayne@69
|
718 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); \
|
|
jpayne@69
|
719 OPENSSL_EXPORT \
|
|
jpayne@69
|
720 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { \
|
|
jpayne@69
|
721 if (ENGINE_get_static_state() == fns->static_state) goto skip_cbs; \
|
|
jpayne@69
|
722 CRYPTO_set_mem_functions(fns->mem_fns.malloc_fn, \
|
|
jpayne@69
|
723 fns->mem_fns.realloc_fn, \
|
|
jpayne@69
|
724 fns->mem_fns.free_fn); \
|
|
jpayne@69
|
725 OPENSSL_init_crypto(OPENSSL_INIT_NO_ATEXIT, NULL); \
|
|
jpayne@69
|
726 skip_cbs: \
|
|
jpayne@69
|
727 if (!fn(e, id)) return 0; \
|
|
jpayne@69
|
728 return 1; }
|
|
jpayne@69
|
729
|
|
jpayne@69
|
730 /*
|
|
jpayne@69
|
731 * If the loading application (or library) and the loaded ENGINE library
|
|
jpayne@69
|
732 * share the same static data (eg. they're both dynamically linked to the
|
|
jpayne@69
|
733 * same libcrypto.so) we need a way to avoid trying to set system callbacks -
|
|
jpayne@69
|
734 * this would fail, and for the same reason that it's unnecessary to try. If
|
|
jpayne@69
|
735 * the loaded ENGINE has (or gets from through the loader) its own copy of
|
|
jpayne@69
|
736 * the libcrypto static data, we will need to set the callbacks. The easiest
|
|
jpayne@69
|
737 * way to detect this is to have a function that returns a pointer to some
|
|
jpayne@69
|
738 * static data and let the loading application and loaded ENGINE compare
|
|
jpayne@69
|
739 * their respective values.
|
|
jpayne@69
|
740 */
|
|
jpayne@69
|
741 void *ENGINE_get_static_state(void);
|
|
jpayne@69
|
742
|
|
jpayne@69
|
743 # if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
|
|
jpayne@69
|
744 DEPRECATEDIN_1_1_0(void ENGINE_setup_bsd_cryptodev(void))
|
|
jpayne@69
|
745 # endif
|
|
jpayne@69
|
746
|
|
jpayne@69
|
747
|
|
jpayne@69
|
748 # ifdef __cplusplus
|
|
jpayne@69
|
749 }
|
|
jpayne@69
|
750 # endif
|
|
jpayne@69
|
751 # endif
|
|
jpayne@69
|
752 #endif
|
