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annotate extensions/radius_gw/rg_common.h @ 406:3a8e91184d4d

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Added code to handle RADIUS client deconnection
author Sebastien Decugis <sdecugis@nict.go.jp>
date Wed, 10 Jun 2009 15:33:26 +0900
parents 1a4902b216f8
children 9cb1799c40d1
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1 /*********************************************************************************************************
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2 * Software License Agreement (BSD License) *
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3 * Author: Sebastien Decugis <sdecugis@nict.go.jp> *
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4 * *
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e86dba02630a Updated copyright information
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5 * Copyright (c) 2009, WIDE Project and NICT *
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6 * All rights reserved. *
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7 * *
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8 * Redistribution and use of this software in source and binary forms, with or without modification, are *
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9 * permitted provided that the following conditions are met: *
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10 * *
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11 * * Redistributions of source code must retain the above *
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12 * copyright notice, this list of conditions and the *
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13 * following disclaimer. *
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14 * *
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15 * * Redistributions in binary form must reproduce the above *
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16 * copyright notice, this list of conditions and the *
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17 * following disclaimer in the documentation and/or other *
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18 * materials provided with the distribution. *
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19 * *
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20 * * Neither the name of the WIDE Project or NICT nor the *
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21 * names of its contributors may be used to endorse or *
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22 * promote products derived from this software without *
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23 * specific prior written permission of WIDE Project and *
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24 * NICT. *
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25 * *
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26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
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27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
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29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
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30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
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31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
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32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
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33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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34 *********************************************************************************************************/
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36 /* This file contains definitions for both radius_gw extension and subextensions. */
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38 #ifndef _RG_COMMON_H
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39 #define _RG_COMMON_H
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41 /* Some headers that are useful in many files */
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42 #include <pthread.h>
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43 #include <string.h>
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44 #include <stdlib.h>
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45 #include <errno.h>
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46 #include <stdint.h>
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47 #include <dlfcn.h>
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48 #include <sys/socket.h>
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49 #include <netdb.h>
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51 /* This should be overwritten before including this file */
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52 #ifndef DEFINE_DEBUG_MACRO
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53 # define DEFINE_DEBUG_MACRO rg_common
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54 # ifndef RG_COMMON_VERBO
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55 # define RG_COMMON_VERBO 0
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56 # endif /* RG_COMMON_VERBO */
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57 static int rg_common_verbosity = RG_COMMON_VERBO;
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58 #endif /* DEFINE_DEBUG_MACRO */
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59
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60 /* Include the waaad API definition */
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61 #define IN_EXTENSION
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62 #include <waaad/waaad.h>
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64 /* Include host-specific defines */
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65 #include "rg_host.h"
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67 /* Include hostap files for RADIUS processings */
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68 #include "hostap_compat.h"
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69 #include "md5.h"
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70 #include "radius.h"
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72 /* Include the radius_gw API definition */
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73 #include "rg_api.h"
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75 /* Type of message / server */
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76 #define RGW_EXT_TYPE_AUTH 1
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77 #define RGW_EXT_TYPE_ACCT 2
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81 /**************************************************************/
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82 /* Functions exported by the common library extension */
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83 /**************************************************************/
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84
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85 /* List management */
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86 struct rg_list {
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87 struct rg_list *next;
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88 struct rg_list *prev;
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89 struct rg_list *head;
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90 };
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91 void rg_list_init(struct rg_list * plist);
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92 int rg_list_is_empty(struct rg_list * plist);
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93 void rg_list_insert_after(struct rg_list * ref, struct rg_list * item);
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94 void rg_list_insert_before(struct rg_list * ref, struct rg_list * item);
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95 void rg_list_unlink(struct rg_list * plist);
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96
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97 /* Others */
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98 int rg_thread_term(pthread_t * th);
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99 void rg_cleanup_mutex(void * mtx);
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100
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101 int rg_pointers_init(void ** hdl);
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102 void rg_pointers_fini(void **hdl);
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103 #define rg_pointers_resolve( ptr, hdl, fct, ret ) { \
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104 ptr = dlsym(hdl, fct); \
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105 if (!ptr) { \
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106 TRACE_DEBUG(INFO, "Error in dlsym(" fct "): %s", dlerror()); \
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107 return ret; \
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108 } \
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109 }
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112 /****************************************/
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113 /* Debug and related stuff */
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114 /****************************************/
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115
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116 #include <assert.h>
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117 #ifndef ASSERT
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118 #define ASSERT(x) assert(x)
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119 #endif /* ASSERT */
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122 /* CHECK_* macro from the daemon */
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123 /* Helper for tracing the CHECK_* macros bellow */
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124 #define TRACE_DEBUG_ALL( str ) \
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125 TRACE_DEBUG(CALL, str );
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126
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127
355
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128 /* Macros to check a return value and branch out in case of error.
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129 * These macro are to be used only when errors are highly improbable, not for expected errors.
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130 */
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131
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132 /* Check the return value of a system function and execute fallback in case of error */
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133 #define CHECK_SYS_DO( __call__, __fallback__ ) { \
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134 int __ret__; \
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135 TRACE_DEBUG_ALL( "Check SYS: " #__call__ ); \
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136 __ret__ = (__call__); \
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137 if (__ret__ < 0) { \
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138 int __err__ = errno; /* We may handle EINTR here */ \
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139 log_error("An unexpected error occured (%s), turn on debug for detail\n",\
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140 strerror(__err__)); \
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141 TRACE_DEBUG(INFO, "Error in '" #__call__ "': %s", strerror(__err__)); \
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142 __fallback__; \
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143 } \
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144 }
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145 /* Check the return value of a system function, return error code on error */
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146 #define CHECK_SYS( __call__ ) { \
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147 int __ret__; \
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148 TRACE_DEBUG_ALL( "Check SYS: " #__call__ ); \
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149 __ret__ = (__call__); \
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150 if (__ret__ < 0) { \
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151 int __err__ = errno; /* We may handle EINTR here */ \
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152 log_error("An unexpected error occured (%s), turn on debug for detail\n",\
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153 strerror(__err__)); \
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154 TRACE_DEBUG(INFO, "Error in '" #__call__ "': %s", strerror(__err__)); \
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155 return __err__; \
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156 } \
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157 }
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158
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159 /* Check the return value of a POSIX function and execute fallback in case of error or special value */
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160 #define CHECK_POSIX_DO2( __call__, __val__, __fallback1__, __fallback2__ ) { \
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161 int __ret__; \
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162 TRACE_DEBUG_ALL( "Check POSIX: " #__call__ ); \
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163 __ret__ = (__call__); \
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164 if (__ret__ != 0) { \
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165 if (__ret__ == (__val__)) { \
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166 __fallback1__; \
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167 } else { \
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168 log_error("An unexpected error, see log for detail\n"); \
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169 TRACE_DEBUG(INFO, "Error in '" #__call__ "': %s", strerror(__ret__)); \
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170 __fallback2__; \
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171 } \
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172 } \
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173 }
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174
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175 /* Check the return value of a POSIX function and execute fallback in case of error */
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176 #define CHECK_POSIX_DO( __call__, __fallback__ ) \
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177 CHECK_POSIX_DO2( (__call__), 0, , __fallback__ );
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178
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179 /* Check the return value of a POSIX function and return it if error */
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180 #define CHECK_POSIX( __call__ ) { \
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181 int __v__; \
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182 CHECK_POSIX_DO( __v__ = (__call__), return __v__ ); \
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183 }
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184
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185 /* Check that a memory allocator did not return NULL, otherwise log an error and execute fallback */
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186 #define CHECK_MALLOC_DO( __call__, __fallback__ ) { \
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187 void * __ret__; \
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188 TRACE_DEBUG_ALL( "Check MALLOC: " #__call__ ); \
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189 __ret__ = (void *)( __call__ ); \
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190 if (__ret__ == NULL) { \
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191 int __err__ = errno; \
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192 log_error("Memory allocation failed: %s\n", strerror(__err__)); \
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193 TRACE_DEBUG(INFO, "Error in '" #__call__ "': %s", strerror(__err__)); \
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194 __fallback__; \
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195 } \
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196 }
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197
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198 /* Check that a memory allocator did not return NULL, otherwise return ENOMEM */
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199 #define CHECK_MALLOC( __call__ ) \
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200 CHECK_MALLOC_DO( __call__, return ENOMEM );
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201
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202
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203 /* The next functions can be used also for expected errors */
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204
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205 /* Check parameters at function entry, execute fallback on error */
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206 #define CHECK_PARAMS_DO( __bool__, __fallback__ ) \
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207 TRACE_DEBUG_ALL( "Check PARAMS: " #__bool__ ); \
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208 if ( ! (__bool__) ) { \
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209 TRACE_DEBUG(INFO, "Invalid parameter received in " #__bool__ ); \
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210 __fallback__; \
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211 }
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212 /* Check parameters at function entry, return EINVAL if the boolean is false (similar to assert) */
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213 #define CHECK_PARAMS( __bool__ ) \
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214 CHECK_PARAMS_DO( __bool__, return EINVAL );
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215
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216 /* Check the return value of an internal function, log and propagate */
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217 #define CHECK_FCT_DO( __call__, __fallback__ ) { \
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218 int __ret__; \
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219 TRACE_DEBUG_ALL( "Check FCT: " #__call__ ); \
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220 __ret__ = (__call__); \
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221 if (__ret__ != 0) { \
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222 TRACE_DEBUG(INFO, "Error in '" #__call__ "': %s", strerror(__ret__)); \
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223 __fallback__; \
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224 } \
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225 }
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226 /* Check the return value of a function call, return any error code */
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227 #define CHECK_FCT( __call__ ) { \
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228 int __v__; \
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229 CHECK_FCT_DO( __v__ = (__call__), return __v__ ); \
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230 }
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231
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232
365
0146c60af026 Moved to the hostap implementation of RADIUS processing (copied radius.* and md5.* files)
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233 #endif /* _RG_COMMON_H */
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234
"Welcome to our mercurial repository"