1 | /*
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2 | * Copyright 2004-2016 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 | #include <stdio.h>
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11 |
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12 | #include "internal/cryptlib.h"
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13 | #include <openssl/crypto.h>
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14 | #include <openssl/lhash.h>
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15 | #include <openssl/buffer.h>
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16 | #include <openssl/x509.h>
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17 | #include <openssl/x509v3.h>
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18 | #include "internal/x509_int.h"
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19 |
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20 | #include "x509_lcl.h"
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21 |
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22 | /* X509_VERIFY_PARAM functions */
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23 |
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24 | #define SET_HOST 0
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25 | #define ADD_HOST 1
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26 |
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27 | static char *str_copy(const char *s)
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28 | {
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29 | return OPENSSL_strdup(s);
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30 | }
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31 |
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32 | static void str_free(char *s)
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33 | {
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34 | OPENSSL_free(s);
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35 | }
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36 |
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37 | static int int_x509_param_set_hosts(X509_VERIFY_PARAM *vpm, int mode,
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38 | const char *name, size_t namelen)
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39 | {
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40 | char *copy;
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41 |
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42 | /*
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43 | * Refuse names with embedded NUL bytes, except perhaps as final byte.
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44 | * XXX: Do we need to push an error onto the error stack?
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45 | */
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46 | if (namelen == 0 || name == NULL)
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47 | namelen = name ? strlen(name) : 0;
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48 | else if (name && memchr(name, '\0', namelen > 1 ? namelen - 1 : namelen))
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49 | return 0;
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50 | if (namelen > 0 && name[namelen - 1] == '\0')
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51 | --namelen;
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52 |
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53 | if (mode == SET_HOST) {
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54 | sk_OPENSSL_STRING_pop_free(vpm->hosts, str_free);
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55 | vpm->hosts = NULL;
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56 | }
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57 | if (name == NULL || namelen == 0)
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58 | return 1;
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59 |
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60 | copy = OPENSSL_strndup(name, namelen);
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61 | if (copy == NULL)
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62 | return 0;
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63 |
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64 | if (vpm->hosts == NULL &&
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65 | (vpm->hosts = sk_OPENSSL_STRING_new_null()) == NULL) {
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66 | OPENSSL_free(copy);
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67 | return 0;
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68 | }
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69 |
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70 | if (!sk_OPENSSL_STRING_push(vpm->hosts, copy)) {
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71 | OPENSSL_free(copy);
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72 | if (sk_OPENSSL_STRING_num(vpm->hosts) == 0) {
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73 | sk_OPENSSL_STRING_free(vpm->hosts);
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74 | vpm->hosts = NULL;
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75 | }
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76 | return 0;
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77 | }
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78 |
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79 | return 1;
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80 | }
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81 |
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82 | static void x509_verify_param_zero(X509_VERIFY_PARAM *param)
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83 | {
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84 | if (!param)
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85 | return;
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86 | param->name = NULL;
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87 | param->purpose = 0;
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88 | param->trust = X509_TRUST_DEFAULT;
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89 | /*
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90 | * param->inh_flags = X509_VP_FLAG_DEFAULT;
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91 | */
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92 | param->inh_flags = 0;
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93 | param->flags = 0;
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94 | param->depth = -1;
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95 | param->auth_level = -1; /* -1 means unset, 0 is explicit */
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96 | sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
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97 | param->policies = NULL;
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98 | sk_OPENSSL_STRING_pop_free(param->hosts, str_free);
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99 | param->hosts = NULL;
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100 | OPENSSL_free(param->peername);
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101 | param->peername = NULL;
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102 | OPENSSL_free(param->email);
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103 | param->email = NULL;
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104 | param->emaillen = 0;
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105 | OPENSSL_free(param->ip);
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106 | param->ip = NULL;
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107 | param->iplen = 0;
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108 | }
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109 |
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110 | X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)
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111 | {
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112 | X509_VERIFY_PARAM *param;
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113 |
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114 | param = OPENSSL_zalloc(sizeof(*param));
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115 | if (param == NULL)
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116 | return NULL;
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117 | x509_verify_param_zero(param);
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118 | return param;
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119 | }
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120 |
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121 | void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param)
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122 | {
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123 | if (!param)
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124 | return;
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125 | x509_verify_param_zero(param);
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126 | OPENSSL_free(param);
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127 | }
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128 |
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129 | /*-
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130 | * This function determines how parameters are "inherited" from one structure
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131 | * to another. There are several different ways this can happen.
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132 | *
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133 | * 1. If a child structure needs to have its values initialized from a parent
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134 | * they are simply copied across. For example SSL_CTX copied to SSL.
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135 | * 2. If the structure should take on values only if they are currently unset.
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136 | * For example the values in an SSL structure will take appropriate value
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137 | * for SSL servers or clients but only if the application has not set new
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138 | * ones.
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139 | *
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140 | * The "inh_flags" field determines how this function behaves.
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141 | *
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142 | * Normally any values which are set in the default are not copied from the
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143 | * destination and verify flags are ORed together.
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144 | *
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145 | * If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
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146 | * to the destination. Effectively the values in "to" become default values
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147 | * which will be used only if nothing new is set in "from".
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148 | *
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149 | * If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
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150 | * they are set or not. Flags is still Ored though.
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151 | *
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152 | * If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
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153 | * of ORed.
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154 | *
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155 | * If X509_VP_FLAG_LOCKED is set then no values are copied.
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156 | *
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157 | * If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
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158 | * after the next call.
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159 | */
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160 |
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161 | /* Macro to test if a field should be copied from src to dest */
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162 |
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163 | #define test_x509_verify_param_copy(field, def) \
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164 | (to_overwrite || \
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165 | ((src->field != def) && (to_default || (dest->field == def))))
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166 |
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167 | /* Macro to test and copy a field if necessary */
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168 |
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169 | #define x509_verify_param_copy(field, def) \
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170 | if (test_x509_verify_param_copy(field, def)) \
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171 | dest->field = src->field
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172 |
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173 | int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
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174 | const X509_VERIFY_PARAM *src)
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175 | {
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176 | unsigned long inh_flags;
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177 | int to_default, to_overwrite;
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178 | if (!src)
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179 | return 1;
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180 | inh_flags = dest->inh_flags | src->inh_flags;
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181 |
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182 | if (inh_flags & X509_VP_FLAG_ONCE)
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183 | dest->inh_flags = 0;
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184 |
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185 | if (inh_flags & X509_VP_FLAG_LOCKED)
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186 | return 1;
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187 |
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188 | if (inh_flags & X509_VP_FLAG_DEFAULT)
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189 | to_default = 1;
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190 | else
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191 | to_default = 0;
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192 |
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193 | if (inh_flags & X509_VP_FLAG_OVERWRITE)
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194 | to_overwrite = 1;
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195 | else
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196 | to_overwrite = 0;
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197 |
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198 | x509_verify_param_copy(purpose, 0);
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199 | x509_verify_param_copy(trust, X509_TRUST_DEFAULT);
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200 | x509_verify_param_copy(depth, -1);
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201 | x509_verify_param_copy(auth_level, -1);
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202 |
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203 | /* If overwrite or check time not set, copy across */
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204 |
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205 | if (to_overwrite || !(dest->flags & X509_V_FLAG_USE_CHECK_TIME)) {
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206 | dest->check_time = src->check_time;
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207 | dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
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208 | /* Don't need to copy flag: that is done below */
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209 | }
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210 |
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211 | if (inh_flags & X509_VP_FLAG_RESET_FLAGS)
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212 | dest->flags = 0;
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213 |
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214 | dest->flags |= src->flags;
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215 |
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216 | if (test_x509_verify_param_copy(policies, NULL)) {
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217 | if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies))
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218 | return 0;
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219 | }
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220 |
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221 | /* Copy the host flags if and only if we're copying the host list */
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222 | if (test_x509_verify_param_copy(hosts, NULL)) {
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223 | sk_OPENSSL_STRING_pop_free(dest->hosts, str_free);
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224 | dest->hosts = NULL;
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225 | if (src->hosts) {
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226 | dest->hosts =
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227 | sk_OPENSSL_STRING_deep_copy(src->hosts, str_copy, str_free);
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228 | if (dest->hosts == NULL)
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229 | return 0;
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230 | dest->hostflags = src->hostflags;
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231 | }
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232 | }
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233 |
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234 | if (test_x509_verify_param_copy(email, NULL)) {
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235 | if (!X509_VERIFY_PARAM_set1_email(dest, src->email, src->emaillen))
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236 | return 0;
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237 | }
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238 |
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239 | if (test_x509_verify_param_copy(ip, NULL)) {
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240 | if (!X509_VERIFY_PARAM_set1_ip(dest, src->ip, src->iplen))
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241 | return 0;
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242 | }
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243 |
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244 | return 1;
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245 | }
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246 |
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247 | int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
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248 | const X509_VERIFY_PARAM *from)
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249 | {
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250 | unsigned long save_flags = to->inh_flags;
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251 | int ret;
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252 | to->inh_flags |= X509_VP_FLAG_DEFAULT;
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253 | ret = X509_VERIFY_PARAM_inherit(to, from);
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254 | to->inh_flags = save_flags;
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255 | return ret;
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256 | }
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257 |
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258 | static int int_x509_param_set1(char **pdest, size_t *pdestlen,
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259 | const char *src, size_t srclen)
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260 | {
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261 | void *tmp;
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262 | if (src) {
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263 | if (srclen == 0)
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264 | srclen = strlen(src);
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265 |
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266 | tmp = OPENSSL_memdup(src, srclen);
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267 | if (tmp == NULL)
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268 | return 0;
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269 | } else {
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270 | tmp = NULL;
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271 | srclen = 0;
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272 | }
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273 | OPENSSL_free(*pdest);
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274 | *pdest = tmp;
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275 | if (pdestlen != NULL)
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276 | *pdestlen = srclen;
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277 | return 1;
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278 | }
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279 |
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280 | int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM *param, const char *name)
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281 | {
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282 | OPENSSL_free(param->name);
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283 | param->name = OPENSSL_strdup(name);
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284 | if (param->name)
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285 | return 1;
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286 | return 0;
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287 | }
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288 |
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289 | int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags)
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290 | {
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291 | param->flags |= flags;
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292 | if (flags & X509_V_FLAG_POLICY_MASK)
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293 | param->flags |= X509_V_FLAG_POLICY_CHECK;
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294 | return 1;
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295 | }
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296 |
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297 | int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param,
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298 | unsigned long flags)
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299 | {
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300 | param->flags &= ~flags;
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301 | return 1;
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302 | }
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303 |
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304 | unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param)
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305 | {
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306 | return param->flags;
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307 | }
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308 |
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309 | uint32_t X509_VERIFY_PARAM_get_inh_flags(const X509_VERIFY_PARAM *param)
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310 | {
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311 | return param->inh_flags;
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312 | }
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313 |
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314 | int X509_VERIFY_PARAM_set_inh_flags(X509_VERIFY_PARAM *param, uint32_t flags)
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315 | {
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316 | param->inh_flags = flags;
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317 | return 1;
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318 | }
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319 |
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320 | int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose)
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321 | {
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322 | return X509_PURPOSE_set(¶m->purpose, purpose);
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323 | }
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324 |
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325 | int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust)
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326 | {
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327 | return X509_TRUST_set(¶m->trust, trust);
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328 | }
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329 |
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330 | void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)
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331 | {
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332 | param->depth = depth;
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333 | }
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334 |
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335 | void X509_VERIFY_PARAM_set_auth_level(X509_VERIFY_PARAM *param, int auth_level)
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336 | {
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337 | param->auth_level = auth_level;
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338 | }
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339 |
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340 | time_t X509_VERIFY_PARAM_get_time(const X509_VERIFY_PARAM *param)
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341 | {
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342 | return param->check_time;
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343 | }
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344 |
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345 | void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t)
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346 | {
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347 | param->check_time = t;
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348 | param->flags |= X509_V_FLAG_USE_CHECK_TIME;
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349 | }
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350 |
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351 | int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param,
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352 | ASN1_OBJECT *policy)
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353 | {
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354 | if (!param->policies) {
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355 | param->policies = sk_ASN1_OBJECT_new_null();
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356 | if (!param->policies)
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357 | return 0;
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358 | }
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359 | if (!sk_ASN1_OBJECT_push(param->policies, policy))
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360 | return 0;
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361 | return 1;
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362 | }
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363 |
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364 | int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param,
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365 | STACK_OF(ASN1_OBJECT) *policies)
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366 | {
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367 | int i;
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368 | ASN1_OBJECT *oid, *doid;
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369 |
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370 | if (!param)
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371 | return 0;
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372 | sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
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373 |
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374 | if (!policies) {
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375 | param->policies = NULL;
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376 | return 1;
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377 | }
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378 |
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379 | param->policies = sk_ASN1_OBJECT_new_null();
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380 | if (!param->policies)
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381 | return 0;
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382 |
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383 | for (i = 0; i < sk_ASN1_OBJECT_num(policies); i++) {
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384 | oid = sk_ASN1_OBJECT_value(policies, i);
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385 | doid = OBJ_dup(oid);
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386 | if (!doid)
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387 | return 0;
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388 | if (!sk_ASN1_OBJECT_push(param->policies, doid)) {
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389 | ASN1_OBJECT_free(doid);
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390 | return 0;
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391 | }
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392 | }
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393 | param->flags |= X509_V_FLAG_POLICY_CHECK;
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394 | return 1;
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395 | }
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396 |
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397 | int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM *param,
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398 | const char *name, size_t namelen)
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399 | {
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400 | return int_x509_param_set_hosts(param, SET_HOST, name, namelen);
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401 | }
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402 |
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403 | int X509_VERIFY_PARAM_add1_host(X509_VERIFY_PARAM *param,
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404 | const char *name, size_t namelen)
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405 | {
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406 | return int_x509_param_set_hosts(param, ADD_HOST, name, namelen);
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407 | }
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408 |
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409 | void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *param,
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410 | unsigned int flags)
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411 | {
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412 | param->hostflags = flags;
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413 | }
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414 |
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415 | char *X509_VERIFY_PARAM_get0_peername(X509_VERIFY_PARAM *param)
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416 | {
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417 | return param->peername;
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418 | }
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419 |
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420 | /*
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421 | * Move peername from one param structure to another, freeing any name present
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422 | * at the target. If the source is a NULL parameter structure, free and zero
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423 | * the target peername.
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424 | */
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425 | void X509_VERIFY_PARAM_move_peername(X509_VERIFY_PARAM *to,
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426 | X509_VERIFY_PARAM *from)
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427 | {
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428 | char *peername = (from != NULL) ? from->peername : NULL;
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429 |
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430 | if (to->peername != peername) {
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431 | OPENSSL_free(to->peername);
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432 | to->peername = peername;
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433 | }
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434 | if (from)
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435 | from->peername = NULL;
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436 | }
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437 |
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438 | int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *param,
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439 | const char *email, size_t emaillen)
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440 | {
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441 | return int_x509_param_set1(¶m->email, ¶m->emaillen,
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442 | email, emaillen);
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443 | }
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444 |
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445 | int X509_VERIFY_PARAM_set1_ip(X509_VERIFY_PARAM *param,
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446 | const unsigned char *ip, size_t iplen)
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447 | {
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448 | if (iplen != 0 && iplen != 4 && iplen != 16)
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449 | return 0;
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450 | return int_x509_param_set1((char **)¶m->ip, ¶m->iplen,
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451 | (char *)ip, iplen);
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452 | }
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453 |
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454 | int X509_VERIFY_PARAM_set1_ip_asc(X509_VERIFY_PARAM *param, const char *ipasc)
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455 | {
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456 | unsigned char ipout[16];
|
---|
457 | size_t iplen;
|
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458 |
|
---|
459 | iplen = (size_t)a2i_ipadd(ipout, ipasc);
|
---|
460 | if (iplen == 0)
|
---|
461 | return 0;
|
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462 | return X509_VERIFY_PARAM_set1_ip(param, ipout, iplen);
|
---|
463 | }
|
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464 |
|
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465 | int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param)
|
---|
466 | {
|
---|
467 | return param->depth;
|
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468 | }
|
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469 |
|
---|
470 | int X509_VERIFY_PARAM_get_auth_level(const X509_VERIFY_PARAM *param)
|
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471 | {
|
---|
472 | return param->auth_level;
|
---|
473 | }
|
---|
474 |
|
---|
475 | const char *X509_VERIFY_PARAM_get0_name(const X509_VERIFY_PARAM *param)
|
---|
476 | {
|
---|
477 | return param->name;
|
---|
478 | }
|
---|
479 |
|
---|
480 | #define vpm_empty_id NULL, 0U, NULL, NULL, 0, NULL, 0
|
---|
481 |
|
---|
482 | /*
|
---|
483 | * Default verify parameters: these are used for various applications and can
|
---|
484 | * be overridden by the user specified table. NB: the 'name' field *must* be
|
---|
485 | * in alphabetical order because it will be searched using OBJ_search.
|
---|
486 | */
|
---|
487 |
|
---|
488 | static const X509_VERIFY_PARAM default_table[] = {
|
---|
489 | {
|
---|
490 | "default", /* X509 default parameters */
|
---|
491 | 0, /* Check time */
|
---|
492 | 0, /* internal flags */
|
---|
493 | X509_V_FLAG_TRUSTED_FIRST, /* flags */
|
---|
494 | 0, /* purpose */
|
---|
495 | 0, /* trust */
|
---|
496 | 100, /* depth */
|
---|
497 | -1, /* auth_level */
|
---|
498 | NULL, /* policies */
|
---|
499 | vpm_empty_id},
|
---|
500 | {
|
---|
501 | "pkcs7", /* S/MIME sign parameters */
|
---|
502 | 0, /* Check time */
|
---|
503 | 0, /* internal flags */
|
---|
504 | 0, /* flags */
|
---|
505 | X509_PURPOSE_SMIME_SIGN, /* purpose */
|
---|
506 | X509_TRUST_EMAIL, /* trust */
|
---|
507 | -1, /* depth */
|
---|
508 | -1, /* auth_level */
|
---|
509 | NULL, /* policies */
|
---|
510 | vpm_empty_id},
|
---|
511 | {
|
---|
512 | "smime_sign", /* S/MIME sign parameters */
|
---|
513 | 0, /* Check time */
|
---|
514 | 0, /* internal flags */
|
---|
515 | 0, /* flags */
|
---|
516 | X509_PURPOSE_SMIME_SIGN, /* purpose */
|
---|
517 | X509_TRUST_EMAIL, /* trust */
|
---|
518 | -1, /* depth */
|
---|
519 | -1, /* auth_level */
|
---|
520 | NULL, /* policies */
|
---|
521 | vpm_empty_id},
|
---|
522 | {
|
---|
523 | "ssl_client", /* SSL/TLS client parameters */
|
---|
524 | 0, /* Check time */
|
---|
525 | 0, /* internal flags */
|
---|
526 | 0, /* flags */
|
---|
527 | X509_PURPOSE_SSL_CLIENT, /* purpose */
|
---|
528 | X509_TRUST_SSL_CLIENT, /* trust */
|
---|
529 | -1, /* depth */
|
---|
530 | -1, /* auth_level */
|
---|
531 | NULL, /* policies */
|
---|
532 | vpm_empty_id},
|
---|
533 | {
|
---|
534 | "ssl_server", /* SSL/TLS server parameters */
|
---|
535 | 0, /* Check time */
|
---|
536 | 0, /* internal flags */
|
---|
537 | 0, /* flags */
|
---|
538 | X509_PURPOSE_SSL_SERVER, /* purpose */
|
---|
539 | X509_TRUST_SSL_SERVER, /* trust */
|
---|
540 | -1, /* depth */
|
---|
541 | -1, /* auth_level */
|
---|
542 | NULL, /* policies */
|
---|
543 | vpm_empty_id}
|
---|
544 | };
|
---|
545 |
|
---|
546 | static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;
|
---|
547 |
|
---|
548 | static int table_cmp(const X509_VERIFY_PARAM *a, const X509_VERIFY_PARAM *b)
|
---|
549 | {
|
---|
550 | return strcmp(a->name, b->name);
|
---|
551 | }
|
---|
552 |
|
---|
553 | DECLARE_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM, table);
|
---|
554 | IMPLEMENT_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM, table);
|
---|
555 |
|
---|
556 | static int param_cmp(const X509_VERIFY_PARAM *const *a,
|
---|
557 | const X509_VERIFY_PARAM *const *b)
|
---|
558 | {
|
---|
559 | return strcmp((*a)->name, (*b)->name);
|
---|
560 | }
|
---|
561 |
|
---|
562 | int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param)
|
---|
563 | {
|
---|
564 | int idx;
|
---|
565 | X509_VERIFY_PARAM *ptmp;
|
---|
566 | if (param_table == NULL) {
|
---|
567 | param_table = sk_X509_VERIFY_PARAM_new(param_cmp);
|
---|
568 | if (param_table == NULL)
|
---|
569 | return 0;
|
---|
570 | } else {
|
---|
571 | idx = sk_X509_VERIFY_PARAM_find(param_table, param);
|
---|
572 | if (idx != -1) {
|
---|
573 | ptmp = sk_X509_VERIFY_PARAM_value(param_table, idx);
|
---|
574 | X509_VERIFY_PARAM_free(ptmp);
|
---|
575 | (void)sk_X509_VERIFY_PARAM_delete(param_table, idx);
|
---|
576 | }
|
---|
577 | }
|
---|
578 | if (!sk_X509_VERIFY_PARAM_push(param_table, param))
|
---|
579 | return 0;
|
---|
580 | return 1;
|
---|
581 | }
|
---|
582 |
|
---|
583 | int X509_VERIFY_PARAM_get_count(void)
|
---|
584 | {
|
---|
585 | int num = OSSL_NELEM(default_table);
|
---|
586 | if (param_table)
|
---|
587 | num += sk_X509_VERIFY_PARAM_num(param_table);
|
---|
588 | return num;
|
---|
589 | }
|
---|
590 |
|
---|
591 | const X509_VERIFY_PARAM *X509_VERIFY_PARAM_get0(int id)
|
---|
592 | {
|
---|
593 | int num = OSSL_NELEM(default_table);
|
---|
594 | if (id < num)
|
---|
595 | return default_table + id;
|
---|
596 | return sk_X509_VERIFY_PARAM_value(param_table, id - num);
|
---|
597 | }
|
---|
598 |
|
---|
599 | const X509_VERIFY_PARAM *X509_VERIFY_PARAM_lookup(const char *name)
|
---|
600 | {
|
---|
601 | int idx;
|
---|
602 | X509_VERIFY_PARAM pm;
|
---|
603 |
|
---|
604 | pm.name = (char *)name;
|
---|
605 | if (param_table) {
|
---|
606 | idx = sk_X509_VERIFY_PARAM_find(param_table, &pm);
|
---|
607 | if (idx != -1)
|
---|
608 | return sk_X509_VERIFY_PARAM_value(param_table, idx);
|
---|
609 | }
|
---|
610 | return OBJ_bsearch_table(&pm, default_table, OSSL_NELEM(default_table));
|
---|
611 | }
|
---|
612 |
|
---|
613 | void X509_VERIFY_PARAM_table_cleanup(void)
|
---|
614 | {
|
---|
615 | sk_X509_VERIFY_PARAM_pop_free(param_table, X509_VERIFY_PARAM_free);
|
---|
616 | param_table = NULL;
|
---|
617 | }
|
---|