Mercurial > hg > freeDiameter
annotate include/freeDiameter/libfdproto.h @ 1033:000e1904074c
Fix a number of additional warnings
| author | Sebastien Decugis <sdecugis@freediameter.net> |
|---|---|
| date | Tue, 16 Apr 2013 11:45:52 +0800 |
| parents | 0117a7746b21 |
| children | f4a73a991623 aecdc2fbf222 |
| rev | line source |
|---|---|
| 0 | 1 /********************************************************************************************************* |
| 2 * Software License Agreement (BSD License) * | |
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3 * Author: Sebastien Decugis <sdecugis@freediameter.net> * |
| 0 | 4 * * |
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5 * Copyright (c) 2013, WIDE Project and NICT * |
| 0 | 6 * All rights reserved. * |
| 7 * * | |
| 8 * Redistribution and use of this software in source and binary forms, with or without modification, are * | |
| 9 * permitted provided that the following conditions are met: * | |
| 10 * * | |
| 11 * * Redistributions of source code must retain the above * | |
| 12 * copyright notice, this list of conditions and the * | |
| 13 * following disclaimer. * | |
| 14 * * | |
| 15 * * Redistributions in binary form must reproduce the above * | |
| 16 * copyright notice, this list of conditions and the * | |
| 17 * following disclaimer in the documentation and/or other * | |
| 18 * materials provided with the distribution. * | |
| 19 * * | |
| 20 * * Neither the name of the WIDE Project or NICT nor the * | |
| 21 * names of its contributors may be used to endorse or * | |
| 22 * promote products derived from this software without * | |
| 23 * specific prior written permission of WIDE Project and * | |
| 24 * NICT. * | |
| 25 * * | |
| 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED * | |
| 27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * | |
| 28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * | |
| 29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * | |
| 30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * | |
| 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 S_OUT OF THE USE OF THIS SOFTWARE, EVEN IF * |
| 0 | 33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * |
| 34 *********************************************************************************************************/ | |
| 35 | |
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36 /* This file contains the definitions of functions and types used by the libfreeDiameter library. |
| 0 | 37 * |
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38 * This library is meant to be used by both the freeDiameter daemon and its extensions. |
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39 * It provides the tools to manipulate Diameter messages and related data. |
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40 * This file should always be included as #include <freeDiameter/libfreeDiameter.h> |
| 0 | 41 * |
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42 * If any change is made to this file, you must increment the FD_PROJECT_VERSION_API version. |
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43 * |
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44 * The file contains the following parts: |
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45 * DEBUG |
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46 * MACROS |
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47 * OCTET STRINGS |
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48 * THREADS |
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49 * LISTS |
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50 * DICTIONARY |
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51 * SESSIONS |
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52 * MESSAGES |
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53 * DISPATCH |
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54 * QUEUES |
| 0 | 55 */ |
| 56 | |
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57 #ifndef _LIBFDPROTO_H |
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58 #define _LIBFDPROTO_H |
| 0 | 59 |
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60 #ifdef __cplusplus |
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61 extern "C" { |
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62 #endif |
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63 |
| 0 | 64 #ifndef FD_IS_CONFIG |
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65 #error "You must include 'freeDiameter-host.h' before this file." |
| 0 | 66 #endif /* FD_IS_CONFIG */ |
| 67 | |
| 68 #include <pthread.h> | |
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69 #include <sched.h> |
| 0 | 70 #include <string.h> |
| 71 #include <assert.h> | |
| 72 #include <errno.h> | |
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73 #include <netinet/in.h> |
| 0 | 74 #include <arpa/inet.h> |
| 75 #include <sys/socket.h> | |
| 76 #include <netdb.h> | |
| 77 #include <stdio.h> | |
| 78 #include <stdlib.h> | |
| 79 #include <unistd.h> | |
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80 #include <stdarg.h> |
| 0 | 81 |
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82 #ifdef DEBUG |
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83 #include <libgen.h> /* for basename if --dbg_file is specified */ |
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84 #endif /* DEBUG */ |
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85 |
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86 #ifdef SWIG |
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87 #define _ATTRIBUTE_PRINTFLIKE_(_f,_v) |
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88 #else |
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89 #define _ATTRIBUTE_PRINTFLIKE_(_f,_v) __attribute__ ((format (printf, _f, _v))) |
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90 #endif /* SWIG */ |
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91 |
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92 /*============================================================*/ |
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93 /* CONSTANTS */ |
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94 /*============================================================*/ |
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95 |
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96 #define DIAMETER_PORT 3868 |
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97 #define DIAMETER_SECURE_PORT 3869 |
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98 |
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99 |
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100 /*============================================================*/ |
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101 /* INIT */ |
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102 /*============================================================*/ |
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103 |
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104 /* This function must be called first, before any call to another library function */ |
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105 int fd_libproto_init(void); /* note if you are using libfdcore, it handles this already */ |
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106 |
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107 /* Call this one when the application terminates, to destroy internal threads */ |
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108 void fd_libproto_fini(void); |
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109 |
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110 |
| 0 | 111 /*============================================================*/ |
| 112 /* DEBUG */ | |
| 113 /*============================================================*/ | |
| 114 | |
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115 |
| 0 | 116 /* |
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117 * FUNCTION: fd_log |
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118 * MACRO: fd_log_debug |
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119 * MACRO: fd_log_notice |
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120 * MACRO: fd_log_error |
| 0 | 121 * |
| 122 * PARAMETERS: | |
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123 * loglevel : Integer, how important the message is |
| 0 | 124 * format : Same format string as in the printf function |
| 125 * ... : Same list as printf | |
| 126 * | |
| 127 * DESCRIPTION: | |
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128 * Write information to log. |
| 0 | 129 * The format and arguments may contain UTF-8 encoded data. The |
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130 * output medium is expected to support this encoding. |
| 0 | 131 * |
| 132 * RETURN VALUE: | |
| 133 * None. | |
| 134 */ | |
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135 void fd_log ( int, const char *, ... ) _ATTRIBUTE_PRINTFLIKE_(2,3); |
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136 #define fd_log_debug(format,args...) fd_log(FD_LOG_DEBUG, format, ## args) |
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137 #define fd_log_notice(format,args...) fd_log(FD_LOG_NOTICE, format, ## args) |
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138 #define fd_log_error(format,args...) fd_log(FD_LOG_ERROR, format, ## args) |
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139 |
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140 void fd_log_debug_fstr( FILE *, const char *, ... ); |
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141 |
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142 /* these are internal objects of the debug facility, |
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143 might be useful to control the behavior from outside */ |
| 0 | 144 extern pthread_mutex_t fd_log_lock; |
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145 extern char * fd_debug_one_function; |
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146 extern char * fd_debug_one_file; |
| 0 | 147 |
| 148 /* | |
| 149 * FUNCTION: fd_log_threadname | |
| 150 * | |
| 151 * PARAMETERS: | |
| 152 * name : \0-terminated string containing a name to identify the current thread. | |
| 153 * | |
| 154 * DESCRIPTION: | |
| 155 * Name the current thread, useful for debugging multi-threaded problems. | |
| 156 * | |
| 157 * This function assumes that a global thread-specific key called "fd_log_thname" exists | |
| 158 * in the address space of the current process. | |
| 159 * | |
| 160 * RETURN VALUE: | |
| 161 * None. | |
| 162 */ | |
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163 void fd_log_threadname ( const char * name ); |
| 0 | 164 extern pthread_key_t fd_log_thname; |
| 165 | |
| 166 /* | |
| 167 * FUNCTION: fd_log_time | |
| 168 * | |
| 169 * PARAMETERS: | |
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170 * ts : The timestamp to log, or NULL for "now" |
| 0 | 171 * buf : An array where the time must be stored |
| 172 * len : size of the buffer | |
| 173 * | |
| 174 * DESCRIPTION: | |
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175 * Writes the timestamp (in human readable format) in a buffer. |
| 0 | 176 * |
| 177 * RETURN VALUE: | |
| 178 * pointer to buf. | |
| 179 */ | |
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180 char * fd_log_time ( struct timespec * ts, char * buf, size_t len ); |
| 0 | 181 |
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182 /* |
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183 * FUNCTION: fd_log_handler_register |
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184 * MACRO: |
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185 * |
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186 * PARAMETERS: |
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187 * loglevel : priority of the message |
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188 * format : Same format string as in the printf function |
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189 * va_list : Argument list |
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190 * |
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191 * DESCRIPTION: |
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192 * Register an external method for logging purposes. |
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193 * |
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194 * RETURN VALUE: |
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195 * int : Success or failure |
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196 */ |
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197 int fd_log_handler_register ( void (*logger)(int loglevel, const char * format, va_list args) ); |
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198 |
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199 /* |
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200 * FUNCTION: fd_log_handler_unregister |
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201 * MACRO: |
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202 * |
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203 * PARAMETERS: |
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204 * |
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205 * DESCRIPTION: |
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206 * Unregister the external logging function. |
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207 * |
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208 * RETURN VALUE: |
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209 * int : Success or failure |
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210 */ |
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211 int fd_log_handler_unregister ( void ); |
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212 |
| 0 | 213 |
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214 /*============================================================*/ |
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215 /* DEBUG MACROS */ |
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216 /*============================================================*/ |
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217 |
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218 #ifndef ASSERT |
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219 #define ASSERT(x) assert(x) |
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220 #endif /* ASSERT */ |
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221 |
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222 /* log levels definitions */ |
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223 #define FD_LOG_DEBUG 0 /* Verbose information for developers use */ |
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224 #define FD_LOG_NOTICE 3 /* Normal execution states worth noting */ |
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225 #define FD_LOG_ERROR 5 /* Error conditions, both recoverable or not */ |
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226 |
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227 /* print level definitions */ |
| 0 | 228 #define NONE 0 /* Display no debug message */ |
| 229 #define INFO 1 /* Display errors only */ | |
| 230 #define FULL 2 /* Display additional information to follow code execution */ | |
| 231 #define ANNOYING 4 /* Very verbose, for example in loops */ | |
| 232 #define FCTS 6 /* Display entry parameters of most functions */ | |
| 233 #define CALL 9 /* Display calls to most functions (with CHECK macros) */ | |
| 234 | |
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235 /* A global level, changed by configuration or cmd line for example. Default is INFO (in libfdproto/log.c). */ |
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236 extern int fd_g_debug_lvl; |
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237 |
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238 /* Some portability code to get nice function name in __PRETTY_FUNCTION__ */ |
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239 #if (!defined( __func__)) && (__STDC_VERSION__ < 199901L) |
| 0 | 240 # if __GNUC__ >= 2 |
| 241 # define __func__ __FUNCTION__ | |
| 242 # else /* __GNUC__ >= 2 */ | |
| 243 # define __func__ "<unknown>" | |
| 244 # endif /* __GNUC__ >= 2 */ | |
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245 #endif /*(!defined( __func__)) && (__STDC_VERSION__ < 199901L) */ |
| 0 | 246 #ifndef __PRETTY_FUNCTION__ |
| 247 #define __PRETTY_FUNCTION__ __func__ | |
| 248 #endif /* __PRETTY_FUNCTION__ */ | |
| 249 | |
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250 #ifdef DEBUG |
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251 /* A version of __FILE__ without the full path */ |
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252 static char * file_bname = NULL; |
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253 static char * file_bname_init(char * full) { file_bname = basename(full); return file_bname; } |
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254 #define __STRIPPED_FILE__ (file_bname ?: file_bname_init((char *)__FILE__)) |
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255 |
| 0 | 256 /* Boolean for tracing at a certain level */ |
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257 #define TRACE_BOOL(_level_) ( ((_level_) <= fd_g_debug_lvl) \ |
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174
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258 || (fd_debug_one_function && !strcmp(fd_debug_one_function, __PRETTY_FUNCTION__)) \ |
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259 || (fd_debug_one_file && !strcmp(fd_debug_one_file, __STRIPPED_FILE__) ) ) |
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260 #else /* DEBUG */ |
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261 #define TRACE_BOOL(_level_) ((_level_) <= fd_g_debug_lvl) |
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262 #define __STRIPPED_FILE__ __FILE__ |
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263 #endif /* DEBUG */ |
| 0 | 264 |
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265 |
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266 #define STD_TRACE_FMT_STRING "pid:%s in %s@%s:%d: " |
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267 /************* |
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268 The general debug macro, each call results in two lines of debug messages (change the macro for more compact output) |
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269 *************/ |
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270 #ifdef DEBUG |
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271 /* In DEBUG mode, we add (a lot of) meta-information along each trace. This makes multi-threading problems easier to debug. */ |
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272 #define TRACE(printlevel,level,format,args... ) { \ |
| 0 | 273 if ( TRACE_BOOL(level) ) { \ |
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274 const char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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275 fd_log((printlevel), STD_TRACE_FMT_STRING format, \ |
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276 __thn, __PRETTY_FUNCTION__, __STRIPPED_FILE__, __LINE__, ## args); \ |
| 0 | 277 } \ |
| 278 } | |
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279 #else /* DEBUG */ |
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280 /* Do not print thread, function, ... only the message itself in this case */ |
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281 #define TRACE(printlevel,level,format,args... ) { \ |
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282 if ( TRACE_BOOL(level) ) { \ |
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283 fd_log((printlevel), format, ## args); \ |
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284 } \ |
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285 } |
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286 #endif /* DEBUG */ |
| 0 | 287 |
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288 /* Report debug information */ |
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289 #define TRACE_DEBUG(level,format,args... ) \ |
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290 TRACE(FD_LOG_DEBUG,(level),format,##args) |
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291 |
| 972 | 292 /* Report a normal message that is useful for normal admin monitoring */ |
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293 #define TRACE_NOTICE(format,args... ) \ |
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294 TRACE(FD_LOG_NOTICE,INFO,format,##args) |
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295 |
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296 /* Report an error */ |
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297 #define TRACE_ERROR(format,args... ) \ |
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298 TRACE(FD_LOG_ERROR, NONE, format, ##args) |
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299 |
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300 /* |
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301 TRACE_NOTICE(...) and fd_log_notice(...) are equivalent when the code is not compiled in DEBUG mode, |
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302 but there is more contextual information when compiled in DEBUG with the TRACE_NOTICE macro, |
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303 hence it is recommended to use this one except for formatted output (e.g. fd_*_dump function) |
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304 |
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305 resp. TRACE_DEBUG and TRACE_ERROR. |
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306 */ |
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307 |
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308 /************* |
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309 Derivatives for debug |
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310 ************/ |
|
2
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|
311 /* Helper for function entry -- for very detailed trace of the execution */ |
| 0 | 312 #define TRACE_ENTRY(_format,_args... ) \ |
|
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|
313 TRACE_DEBUG(FCTS, "[enter] %s(" _format ") {" #_args "}", __PRETTY_FUNCTION__, ##_args ); |
| 0 | 314 |
|
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|
315 /* Helper for debugging by adding traces -- for debuging a specific location of the code */ |
| 0 | 316 #define TRACE_HERE() \ |
|
183
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Fix compilation error
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|
317 TRACE_DEBUG(NONE, " -- debug checkpoint %d -- ", fd_breakhere()); |
|
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|
318 int fd_breakhere(void); |
| 0 | 319 |
| 972 | 320 /* Helper for tracing the CHECK_* macros below -- very very verbose code execution! */ |
|
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|
321 #define TRACE_DEBUG_ALL( str... ) \ |
| 0 | 322 TRACE_DEBUG(CALL, str ); |
| 323 | |
|
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|
324 /* For development only, to keep track of TODO locations in the code */ |
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|
325 #ifndef ERRORS_ON_TODO |
|
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|
326 #define TODO( _msg, _args... ) \ |
|
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|
327 TRACE_DEBUG(NONE, "TODO: " _msg , ##_args); |
|
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|
328 #else /* ERRORS_ON_TODO */ |
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|
329 #define TODO( _msg, _args... ) \ |
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|
330 "TODO" = _msg ## _args; /* just a stupid compilation error to spot the todo */ |
|
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|
331 #endif /* ERRORS_ON_TODO */ |
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|
332 |
|
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|
333 /* Trace a binary buffer content */ |
|
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334 #ifdef DEBUG |
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|
335 /* In DEBUG mode, we add (a lot of) meta-information along each trace. This makes multi-threading problems easier to debug. */ |
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336 #define TRACE_BUFFER(printlevel, level, prefix, buf, bufsz, suffix ) { \ |
|
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337 if ( TRACE_BOOL(level) ) { \ |
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|
338 int __i; \ |
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339 size_t __sz = (size_t)(bufsz); \ |
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|
340 uint8_t * __buf = (uint8_t *)(buf); \ |
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341 char __strbuf[1024+1]; \ |
|
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|
342 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
|
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343 for (__i = 0; (__i < __sz) && (__i<(sizeof(__strbuf)/2)); __i++) { \ |
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|
344 sprintf(__strbuf + (2 * __i), "%2.2hhx", __buf[__i]); \ |
|
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345 } \ |
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346 fd_log(printlevel, STD_TRACE_FMT_STRING "%s%s%s", \ |
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347 __thn, __PRETTY_FUNCTION__, __STRIPPED_FILE__, __LINE__, (prefix), __strbuf, (suffix)); \ |
|
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|
348 } \ |
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349 } |
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350 #else /* DEBUG */ |
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351 /* Do not print thread, function, ... only the message itself in this case */ |
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352 #define TRACE_BUFFER(printlevel, level, prefix, buf, bufsz, suffix ) { \ |
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353 if ( TRACE_BOOL(level) ) { \ |
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354 int __i; \ |
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355 size_t __sz = (size_t)(bufsz); \ |
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356 uint8_t * __buf = (uint8_t *)(buf); \ |
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357 char __strbuf[1024+1]; \ |
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358 for (__i = 0; (__i < __sz) && (__i<(sizeof(__strbuf)/2)); __i++) { \ |
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359 sprintf(__strbuf + (2 * __i), "%2.2hhx", __buf[__i]); \ |
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360 } \ |
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361 fd_log(printlevel, "%s%s%s", (prefix), __strbuf, (suffix)); \ |
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362 } \ |
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363 } |
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364 #endif /* DEBUG */ |
|
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365 |
|
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|
366 /* Some aliases to socket addresses structures */ |
|
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|
367 #define sSS struct sockaddr_storage |
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|
368 #define sSA struct sockaddr |
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369 #define sSA4 struct sockaddr_in |
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370 #define sSA6 struct sockaddr_in6 |
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|
371 |
|
246
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372 /* The sockaddr length of a sSS structure */ |
|
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|
373 #define sSAlen( _sa_ ) \ |
|
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374 ( (socklen_t) ( (((sSA *)_sa_)->sa_family == AF_INET) ? (sizeof(sSA4)) : \ |
|
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|
375 ((((sSA *)_sa_)->sa_family == AF_INET6) ? (sizeof(sSA6)) : \ |
|
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|
376 0 ) ) ) |
|
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|
377 |
|
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|
378 /* Dump one sockaddr Node information */ |
|
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|
379 #define sSA_DUMP_NODE( buf, bufsize, sa, flag ) { \ |
|
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|
380 sSA * __sa = (sSA *)(sa); \ |
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|
381 char __addrbuf[INET6_ADDRSTRLEN]; \ |
|
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|
382 if (__sa) { \ |
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|
383 int __rc = getnameinfo(__sa, \ |
|
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|
384 sSAlen(__sa), \ |
|
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|
385 __addrbuf, \ |
|
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|
386 sizeof(__addrbuf), \ |
|
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|
387 NULL, \ |
|
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|
388 0, \ |
|
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|
389 (flag)); \ |
|
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|
390 if (__rc) \ |
|
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|
391 snprintf(buf, bufsize, "%s", gai_strerror(__rc)); \ |
|
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392 else \ |
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|
393 snprintf(buf, bufsize, "%s", &__addrbuf[0]); \ |
|
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|
394 } else { \ |
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|
395 snprintf(buf, bufsize, "(NULL / ANY)"); \ |
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|
396 } \ |
|
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397 } |
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398 /* Same but with the port (service) also */ |
|
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399 #define sSA_DUMP_NODE_SERV( buf, bufsize, sa, flag ) { \ |
|
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400 sSA * __sa = (sSA *)(sa); \ |
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|
401 char __addrbuf[INET6_ADDRSTRLEN]; \ |
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|
402 char __servbuf[32]; \ |
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|
403 if (__sa) { \ |
|
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|
404 int __rc = getnameinfo(__sa, \ |
|
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405 sSAlen(__sa), \ |
|
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406 __addrbuf, \ |
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|
407 sizeof(__addrbuf), \ |
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|
408 __servbuf, \ |
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409 sizeof(__servbuf), \ |
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410 (flag)); \ |
|
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411 if (__rc) \ |
|
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|
412 snprintf(buf, bufsize, "%s", gai_strerror(__rc)); \ |
|
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413 else \ |
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|
414 snprintf(buf, bufsize, "[%s]:%s", &__addrbuf[0],&__servbuf[0]); \ |
|
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|
415 } else { \ |
|
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416 snprintf(buf, bufsize,"(NULL / ANY)"); \ |
|
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417 } \ |
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418 } |
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419 |
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420 #ifdef DEBUG |
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421 /* In DEBUG mode, we add (a lot of) meta-information along each trace. This makes multi-threading problems easier to debug. */ |
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422 #define TRACE_sSA(printlevel, level, prefix, sa, flags, suffix ) { \ |
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423 if ( TRACE_BOOL(level) ) { \ |
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424 char __buf[1024]; \ |
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425 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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426 sSA_DUMP_NODE_SERV(__buf, sizeof(__buf), sa, flags ); \ |
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427 fd_log(printlevel, STD_TRACE_FMT_STRING "%s%s%s" , \ |
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428 __thn, __PRETTY_FUNCTION__, __STRIPPED_FILE__, __LINE__, (prefix), __buf, (suffix)); \ |
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429 } \ |
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430 } |
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431 #else /* DEBUG */ |
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432 /* Do not print thread, function, ... only the message itself in this case */ |
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433 #define TRACE_sSA(printlevel, level, prefix, sa, flags, suffix ) { \ |
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434 if ( TRACE_BOOL(level) ) { \ |
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435 char __buf[1024]; \ |
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436 sSA_DUMP_NODE_SERV(__buf, sizeof(__buf), sa, flags ); \ |
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437 fd_log(printlevel, "%s%s%s" , (prefix), __buf, (suffix)); \ |
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438 } \ |
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439 } |
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440 #endif /* DEBUG */ |
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441 |
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442 /****************** |
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443 Optimized code: remove all debugging code |
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444 **/ |
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445 #ifdef STRIP_DEBUG_CODE |
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446 #undef TRACE_DEBUG |
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447 #undef TRACE_NOTICE |
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448 #undef TRACE_ERROR |
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449 #undef TRACE_BOOL |
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450 #undef TRACE_BUFFER |
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451 #undef TRACE_sSA |
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452 |
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453 #define TRACE_DEBUG(level,format,args... ) /* noop */ |
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454 #define TRACE_BOOL(_level_) (0) /* always false */ |
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455 #define TRACE_NOTICE fd_log_notice |
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456 #define TRACE_ERROR fd_log_error |
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457 #define TRACE_BUFFER(printlevel, level, prefix, buf, bufsz, suffix ) { \ |
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458 if (printlevel > FD_LOG_DEBUG) { \ |
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459 int __i; \ |
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460 size_t __sz = (size_t)(bufsz); \ |
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461 uint8_t * __buf = (uint8_t *)(buf); \ |
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462 char * __strbuf[1024+1]; \ |
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463 for (__i = 0; (__i < __sz) && (__i<(sizeof(__strbuf)/2); __i++) { \ |
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464 sprintf(__strbuf + (2 * __i), "%02.2hhx", __buf[__i]); \ |
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465 } \ |
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466 fd_log(printlevel, prefix"%s"suffix, __strbuf); \ |
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467 } |
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468 #define TRACE_sSA(printlevel, level, prefix, sa, flags, suffix ) { \ |
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469 if (printlevel > FD_LOG_DEBUG) { \ |
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470 char __buf[1024]; \ |
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471 sSA_DUMP_NODE_SERV(__buf, sizeof(__buf), sa, flags ); \ |
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472 fd_log(printlevel, prefix "%s" suffix, __buf); \ |
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473 } |
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474 #endif /* STRIP_DEBUG_CODE */ |
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475 |
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476 |
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477 /*============================================================*/ |
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478 /* ERROR CHECKING MACRO */ |
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479 /*============================================================*/ |
| 0 | 480 |
| 481 /* Macros to check a return value and branch out in case of error. | |
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482 * These macro should be used only when errors are improbable, not for expected errors. |
| 0 | 483 */ |
| 484 | |
| 485 /* Check the return value of a system function and execute fallback in case of error */ | |
| 486 #define CHECK_SYS_DO( __call__, __fallback__ ) { \ | |
| 487 int __ret__; \ | |
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488 TRACE_DEBUG_ALL( "Check SYS: %s", #__call__ ); \ |
| 0 | 489 __ret__ = (__call__); \ |
| 490 if (__ret__ < 0) { \ | |
| 491 int __err__ = errno; /* We may handle EINTR here */ \ | |
|
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492 TRACE_ERROR("ERROR: in '%s' :\t%s", #__call__ , strerror(__err__)); \ |
| 0 | 493 __fallback__; \ |
| 494 } \ | |
| 495 } | |
| 496 /* Check the return value of a system function, return error code on error */ | |
| 497 #define CHECK_SYS( __call__ ) { \ | |
| 498 int __ret__; \ | |
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499 TRACE_DEBUG_ALL( "Check SYS: %s", #__call__ ); \ |
| 0 | 500 __ret__ = (__call__); \ |
| 501 if (__ret__ < 0) { \ | |
| 502 int __err__ = errno; /* We may handle EINTR here */ \ | |
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503 TRACE_ERROR("ERROR: in '%s' :\t%s", #__call__ , strerror(__err__)); \ |
| 0 | 504 return __err__; \ |
| 505 } \ | |
| 506 } | |
| 507 | |
| 508 /* Check the return value of a POSIX function and execute fallback in case of error or special value */ | |
| 509 #define CHECK_POSIX_DO2( __call__, __speval__, __fallback1__, __fallback2__ ) { \ | |
| 510 int __ret__; \ | |
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511 TRACE_DEBUG_ALL( "Check POSIX: %s", #__call__ ); \ |
| 0 | 512 __ret__ = (__call__); \ |
| 513 if (__ret__ != 0) { \ | |
| 514 if (__ret__ == (__speval__)) { \ | |
| 515 __fallback1__; \ | |
| 516 } else { \ | |
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517 TRACE_ERROR("ERROR: in '%s':\t%s", #__call__, strerror(__ret__)); \ |
| 0 | 518 __fallback2__; \ |
| 519 } \ | |
| 520 } \ | |
| 521 } | |
| 522 | |
| 523 /* Check the return value of a POSIX function and execute fallback in case of error */ | |
| 524 #define CHECK_POSIX_DO( __call__, __fallback__ ) \ | |
| 525 CHECK_POSIX_DO2( (__call__), 0, , __fallback__ ); | |
| 526 | |
| 527 /* Check the return value of a POSIX function and return it if error */ | |
| 528 #define CHECK_POSIX( __call__ ) { \ | |
| 529 int __v__; \ | |
| 530 CHECK_POSIX_DO( __v__ = (__call__), return __v__ ); \ | |
| 531 } | |
| 532 | |
| 533 /* Check that a memory allocator did not return NULL, otherwise log an error and execute fallback */ | |
| 534 #define CHECK_MALLOC_DO( __call__, __fallback__ ) { \ | |
| 535 void * __ret__; \ | |
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536 TRACE_DEBUG_ALL( "Check MALLOC: %s", #__call__ ); \ |
| 0 | 537 __ret__ = (void *)( __call__ ); \ |
| 538 if (__ret__ == NULL) { \ | |
| 539 int __err__ = errno; \ | |
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540 TRACE_ERROR("ERROR: in '%s':\t%s", #__call__, strerror(__err__)); \ |
| 0 | 541 __fallback__; \ |
| 542 } \ | |
| 543 } | |
| 544 | |
| 545 /* Check that a memory allocator did not return NULL, otherwise return ENOMEM */ | |
| 546 #define CHECK_MALLOC( __call__ ) \ | |
| 547 CHECK_MALLOC_DO( __call__, return ENOMEM ); | |
| 548 | |
| 549 | |
| 550 /* Check parameters at function entry, execute fallback on error */ | |
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551 #define CHECK_PARAMS_DO( __bool__, __fallback__ ) \ |
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552 TRACE_DEBUG_ALL( "Check PARAMS: %s", #__bool__ ); \ |
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553 if ( ! (__bool__) ) { \ |
|
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554 TRACE_ERROR("Warning: Invalid parameter received in '%s'", #__bool__); \ |
|
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555 __fallback__; \ |
| 0 | 556 } |
| 557 /* Check parameters at function entry, return EINVAL if the boolean is false (similar to assert) */ | |
| 558 #define CHECK_PARAMS( __bool__ ) \ | |
| 559 CHECK_PARAMS_DO( __bool__, return EINVAL ); | |
| 560 | |
| 561 /* Check the return value of an internal function, log and propagate */ | |
| 562 #define CHECK_FCT_DO( __call__, __fallback__ ) { \ | |
| 563 int __ret__; \ | |
|
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564 TRACE_DEBUG_ALL( "Check FCT: %s", #__call__ ); \ |
| 0 | 565 __ret__ = (__call__); \ |
| 566 if (__ret__ != 0) { \ | |
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567 TRACE_ERROR("ERROR: in '%s':\t%s", #__call__, strerror(__ret__)); \ |
| 0 | 568 __fallback__; \ |
| 569 } \ | |
| 570 } | |
| 571 /* Check the return value of a function call, return any error code */ | |
| 572 #define CHECK_FCT( __call__ ) { \ | |
| 573 int __v__; \ | |
| 574 CHECK_FCT_DO( __v__ = (__call__), return __v__ ); \ | |
| 575 } | |
| 576 | |
|
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577 |
|
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|
578 |
|
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579 /*============================================================*/ |
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580 /* OTHER MACROS */ |
|
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581 /*============================================================*/ |
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582 |
|
618
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583 |
|
3
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584 /* helper macros (pre-processor hacks to allow macro arguments) */ |
|
653
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585 #define __tostr( arg ) #arg |
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586 #define _stringize( arg ) __tostr( arg ) |
|
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587 #define __agr( arg1, arg2 ) arg1 ## arg2 |
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588 #define _aggregate( arg1, arg2 ) __agr( arg1, arg2 ) |
| 0 | 589 |
| 590 | |
|
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591 /* A l4 protocol name (TCP / SCTP) */ |
|
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592 #ifdef DISABLE_SCTP |
|
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593 #define IPPROTO_NAME( _proto ) \ |
|
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594 (((_proto) == IPPROTO_TCP) ? "TCP" : \ |
|
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|
595 "Unknown") |
|
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Added a lot of TODOs :)
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596 #else /* DISABLE_SCTP */ |
|
20
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diff
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|
597 #define IPPROTO_NAME( _proto ) \ |
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598 ( ((_proto) == IPPROTO_TCP) ? "TCP" : \ |
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|
599 (((_proto) == IPPROTO_SCTP) ? "SCTP" : \ |
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600 "Unknown")) |
|
33
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601 #endif /* DISABLE_SCTP */ |
|
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602 |
| 0 | 603 /* Define the value of IP loopback address */ |
| 604 #ifndef INADDR_LOOPBACK | |
| 605 #define INADDR_LOOPBACK inet_addr("127.0.0.1") | |
| 606 #endif /* INADDR_LOOPBACK */ | |
| 607 | |
|
512
16224de837fd
Fix problem reported by ????? ????????? on dev@freediameter.net
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608 #ifndef INADDR_BROADCAST |
|
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diff
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|
609 #define INADDR_BROADCAST ((in_addr_t) 0xffffffff) |
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610 #endif /* INADDR_BROADCAST */ |
|
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Fix problem reported by ????? ????????? on dev@freediameter.net
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|
611 |
|
134
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Fixed loopback test for correct network order
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131
diff
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|
612 /* An IP equivalent to IN6_IS_ADDR_LOOPBACK */ |
|
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613 #ifndef IN_IS_ADDR_LOOPBACK |
|
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|
614 #define IN_IS_ADDR_LOOPBACK(a) \ |
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parents:
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615 ((((long int) (a)->s_addr) & ntohl(0xff000000)) == ntohl(0x7f000000)) |
|
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616 #endif /* IN_IS_ADDR_LOOPBACK */ |
|
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|
617 |
|
135
bbb8ddba4c85
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618 /* An IP equivalent to IN6_IS_ADDR_UNSPECIFIED */ |
|
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619 #ifndef IN_IS_ADDR_UNSPECIFIED |
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620 #define IN_IS_ADDR_UNSPECIFIED(a) \ |
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621 (((long int) (a)->s_addr) == 0x00000000) |
|
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622 #endif /* IN_IS_ADDR_UNSPECIFIED */ |
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623 |
| 0 | 624 /* create a V4MAPPED address */ |
| 625 #define IN6_ADDR_V4MAP( a6, a4 ) { \ | |
| 626 ((uint32_t *)(a6))[0] = 0; \ | |
| 627 ((uint32_t *)(a6))[1] = 0; \ | |
| 628 ((uint32_t *)(a6))[2] = htonl(0xffff); \ | |
| 629 ((uint32_t *)(a6))[3] = (uint32_t)(a4); \ | |
| 630 } | |
| 631 | |
| 632 /* Retrieve a v4 value from V4MAPPED address ( takes a s6_addr as param) */ | |
| 633 #define IN6_ADDR_V4UNMAP( a6 ) \ | |
| 634 (((in_addr_t *)(a6))[3]) | |
| 635 | |
| 636 | |
| 637 /* We provide macros to convert 64 bit values to and from network byte-order, on systems where it is not already provided. */ | |
|
226
406f74f0789b
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638 #ifndef HAVE_NTOHLL /* Defined by the cmake step, if the ntohll symbol is defined on the system */ |
| 0 | 639 # if HOST_BIG_ENDIAN |
| 640 /* In big-endian systems, we don't have to change the values, since the order is the same as network */ | |
| 641 # define ntohll(x) (x) | |
| 642 # define htonll(x) (x) | |
| 643 # else /* HOST_BIG_ENDIAN */ | |
| 644 /* For these systems, we must reverse the bytes. Use ntohl and htonl on sub-32 blocs, and inverse these blocs. */ | |
| 645 # define ntohll(x) (typeof (x))( (((uint64_t)ntohl( (uint32_t)(x))) << 32 ) | ((uint64_t) ntohl( ((uint64_t)(x)) >> 32 ))) | |
| 646 # define htonll(x) (typeof (x))( (((uint64_t)htonl( (uint32_t)(x))) << 32 ) | ((uint64_t) htonl( ((uint64_t)(x)) >> 32 ))) | |
| 647 # endif /* HOST_BIG_ENDIAN */ | |
| 648 #endif /* HAVE_NTOHLL */ | |
| 649 | |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
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diff
changeset
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650 /* This macro will give the next multiple of 4 for an integer (used for padding sizes of AVP). */ |
| 0 | 651 #define PAD4(_x) ((_x) + ( (4 - (_x)) & 3 ) ) |
| 652 | |
|
226
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Few cosmetics changes
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|
653 /* Useful to display any value as (safe) ASCII (will garbage UTF-8 output...) */ |
| 0 | 654 #define ASCII(_c) ( ((_c < 32) || (_c > 127)) ? ( _c ? '?' : ' ' ) : _c ) |
| 655 | |
| 656 /* Compare timespec structures */ | |
| 657 #define TS_IS_INFERIOR( ts1, ts2 ) \ | |
| 658 ( ((ts1)->tv_sec < (ts2)->tv_sec ) \ | |
|
5
c2d2729e3603
Completed new session module tests; some bugs fixed
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parents:
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659 || (((ts1)->tv_sec == (ts2)->tv_sec ) && ((ts1)->tv_nsec < (ts2)->tv_nsec) )) |
| 0 | 660 |
|
895
fbf77629cb7b
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|
661 /* Compute diff between two timespecs (pointers) */ |
|
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|
662 #define TS_DIFFERENCE( tsdiff, tsstart, tsend ) { \ |
|
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663 if ((tsend)->tv_nsec < (tsstart)->tv_nsec ) { \ |
|
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664 (tsdiff)->tv_sec = (tsend)->tv_sec - (tsstart)->tv_sec - 1; \ |
|
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665 (tsdiff)->tv_nsec = (tsend)->tv_nsec + 1000000000 - (tsstart)->tv_nsec; \ |
|
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666 } else { \ |
|
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diff
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|
667 (tsdiff)->tv_sec = (tsend)->tv_sec - (tsstart)->tv_sec; \ |
|
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diff
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668 (tsdiff)->tv_nsec = (tsend)->tv_nsec - (tsstart)->tv_nsec; \ |
|
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Added received and sent timestamps in the messages; added logs on emission and reception
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diff
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|
669 }} |
|
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
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parents:
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diff
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|
670 |
|
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
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diff
changeset
|
671 |
|
542
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
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diff
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|
672 /* This gives a good size for buffered reads */ |
|
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
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673 #ifndef BUFSIZ |
|
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
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674 #define BUFSIZ 96 |
|
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
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diff
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|
675 #endif /* BUFSIZ */ |
|
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
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|
676 |
|
706
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677 /* This gives the length of a const string */ |
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678 #define CONSTSTRLEN( str ) (sizeof(str) - 1) |
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679 |
|
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680 |
|
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681 /*============================================================*/ |
|
836
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
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diff
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|
682 /* PORTABILITY */ |
|
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683 /*============================================================*/ |
|
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Add replacement for clock_gettime (for Mac OS) -- ticket #38
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684 #ifndef HAVE_CLOCK_GETTIME |
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685 #define CLOCK_REALTIME 0 |
|
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diff
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|
686 #include <sys/time.h> |
|
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diff
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|
687 int clock_gettime(int clk_id, struct timespec* ts); |
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diff
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|
688 #endif /* HAVE_CLOCK_GETTIME */ |
|
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diff
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|
689 |
|
849
d7f940afd933
New portability function: strndup
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diff
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|
690 #ifndef HAVE_STRNDUP |
|
850
12e7fcbc1b21
Fix previous commit
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diff
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|
691 char * strndup (char *str, size_t len); |
|
849
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692 #endif /* HAVE_STRNDUP */ |
|
836
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|
693 |
|
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Add replacement for clock_gettime (for Mac OS) -- ticket #38
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|
694 |
|
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|
695 /*============================================================*/ |
|
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696 /* BINARY STRINGS */ |
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697 /*============================================================*/ |
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698 |
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699 /* Compute a hash value of a binary string. |
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700 The hash must remain local to this machine, there is no guarantee that same input |
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701 will give same output on a different system (endianness) */ |
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702 uint32_t fd_os_hash ( uint8_t * string, size_t len ); |
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703 |
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704 /* This type used for binary strings that contain no \0 except as their last character. |
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705 It means some string operations can be used on it. */ |
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706 typedef uint8_t * os0_t; |
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707 |
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708 /* Same as strdup but for os0_t strings */ |
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709 os0_t os0dup_int(os0_t s, size_t l); |
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710 #define os0dup( _s, _l) (void *)os0dup_int((os0_t)(_s), _l) |
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711 |
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712 /* Check that an octet string value can be used as os0_t */ |
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713 static __inline__ int fd_os_is_valid_os0(uint8_t * os, size_t oslen) { |
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714 /* The only situation where it is not valid is when it contains a \0 inside the octet string */ |
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715 return (memchr(os, '\0', oslen) == NULL); |
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716 } |
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717 |
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718 /* The following type denotes a verified DiameterIdentity value (that contains only pure letters, digits, hyphen, dot) */ |
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719 typedef char * DiamId_t; |
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720 |
|
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721 /* Maximum length of a hostname we accept */ |
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|
722 #ifndef HOST_NAME_MAX |
|
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|
723 #define HOST_NAME_MAX 512 |
|
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724 #endif /* HOST_NAME_MAX */ |
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|
725 |
|
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|
726 /* Check if a binary string contains a valid Diameter Identity value. |
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|
727 rfc3588 states explicitely that such a Diameter Identity consists only of ASCII characters. */ |
|
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|
728 int fd_os_is_valid_DiameterIdentity(uint8_t * os, size_t ossz); |
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|
729 |
|
717
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diff
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|
730 /* The following function validates a string as a Diameter Identity or applies the IDNA transformation on it |
|
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diff
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|
731 if *inoutsz is != 0 on entry, *id may not be \0-terminated. |
|
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Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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|
732 memory has the following meaning: 0: *id can be realloc'd. 1: *id must be malloc'd on output (was static) |
|
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diff
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|
733 */ |
|
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diff
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|
734 int fd_os_validate_DiameterIdentity(char ** id, size_t * inoutsz, int memory); |
|
706
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|
735 |
|
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|
736 /* Create an order relationship for binary strings (not needed to be \0 terminated). |
|
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|
737 It does NOT mimic strings relationships so that it is more efficient. It is case sensitive. |
|
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|
738 (the strings are actually first ordered by their lengh, then by their bytes contents) |
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739 returns: -1 if os1 < os2; +1 if os1 > os2; 0 if they are equal */ |
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|
740 int fd_os_cmp_int(os0_t os1, size_t os1sz, os0_t os2, size_t os2sz); |
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|
741 #define fd_os_cmp(_o1, _l1, _o2, _l2) fd_os_cmp_int((os0_t)(_o1), _l1, (os0_t)(_o2), _l2) |
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|
742 |
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|
743 /* A roughly case-insensitive variant, which actually only compares ASCII chars (0-127) in a case-insentitive maneer |
|
738
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|
744 -- it does not support locales where a lowercase letter uses more space than upper case, such as ? -> ss |
|
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diff
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|
745 It is slower than fd_os_cmp. |
|
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|
746 Note that the result is NOT the same as strcasecmp !!! |
|
738
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diff
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|
747 |
|
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diff
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|
748 This function gives the same order as fd_os_cmp, except when it finds 2 strings to be equal. |
|
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diff
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|
749 However this is not always sufficient: |
|
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diff
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|
750 for example fd_os_cmp gives: "Ac" < "aB" < "aa" |
|
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diff
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|
751 if you attempt to fd_os_almostcasesrch "Aa" you will actually have to go past "aB" which is > "Aa". |
|
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diff
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|
752 Therefore you can use the maybefurther parameter. |
|
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diff
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|
753 This parameter is 1 on return if os1 may have been stored further that os2 (assuming os2 values are ordered by fd_os_cmp) |
|
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diff
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|
754 and 0 if we are sure that it is not the case. |
|
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736
diff
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|
755 When looping through a list of fd_os_cmp classified values, this parameter must be used to stop looping, in addition to the comp result. |
|
706
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|
756 */ |
|
738
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|
757 int fd_os_almostcasesrch_int(uint8_t * os1, size_t os1sz, uint8_t * os2, size_t os2sz, int * maybefurther); |
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|
758 #define fd_os_almostcasesrch(_o1, _l1, _o2, _l2, _mb) fd_os_almostcasesrch_int((os0_t)(_o1), _l1, (os0_t)(_o2), _l2, _mb) |
| 0 | 759 |
|
717
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diff
changeset
|
760 /* Analyze a DiameterURI and return its components. |
|
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|
761 Return EINVAL if the URI is not valid. |
|
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|
762 *diamid is malloc'd on function return and must be freed (it is processed by fd_os_validate_DiameterIdentity). |
|
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diff
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|
763 *secure is 0 (no security) or 1 (security enabled) on return. |
|
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|
764 *port is 0 (default) or a value in host byte order on return. |
|
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diff
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|
765 *transport is 0 (default) or IPPROTO_* on return. |
|
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|
766 *proto is 0 (default) or 'd' (diameter), 'r' (radius), or 't' (tacacs+) on return. |
|
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|
767 */ |
|
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|
768 int fd_os_parse_DiameterURI(uint8_t * uri, size_t urisz, DiamId_t * diamid, size_t * diamidlen, int * secure, uint16_t * port, int * transport, char *proto); |
|
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|
769 |
| 0 | 770 /*============================================================*/ |
| 771 /* THREADS */ | |
| 772 /*============================================================*/ | |
| 773 | |
| 774 /* Terminate a thread */ | |
| 775 static __inline__ int fd_thr_term(pthread_t * th) | |
| 776 { | |
| 777 void * th_ret = NULL; | |
| 778 | |
| 779 CHECK_PARAMS(th); | |
| 780 | |
| 781 /* Test if it was already terminated */ | |
| 782 if (*th == (pthread_t)NULL) | |
| 783 return 0; | |
| 784 | |
| 785 /* Cancel the thread if it is still running - ignore error if it was already terminated */ | |
| 786 (void) pthread_cancel(*th); | |
| 787 | |
| 788 /* Then join the thread */ | |
|
183
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diff
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|
789 CHECK_POSIX( pthread_join(*th, &th_ret) ); |
| 0 | 790 |
|
181
1f39f0c51094
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|
791 if (th_ret == PTHREAD_CANCELED) { |
|
1027
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|
792 TRACE_DEBUG(ANNOYING, "The thread %p was canceled", (void *)*th); |
|
181
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|
793 } else { |
|
1027
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diff
changeset
|
794 TRACE_DEBUG(CALL, "The thread %p returned %p", (void *)*th, th_ret); |
| 0 | 795 } |
| 796 | |
| 797 /* Clean the location */ | |
| 798 *th = (pthread_t)NULL; | |
| 799 | |
|
183
960764fbc68f
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|
800 return 0; |
| 0 | 801 } |
| 802 | |
|
454
f1484823cb4a
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diff
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|
803 |
|
226
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|
804 /************* |
|
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805 Cancelation cleanup handlers for common objects |
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|
806 *************/ |
| 0 | 807 static __inline__ void fd_cleanup_mutex( void * mutex ) |
| 808 { | |
| 809 CHECK_POSIX_DO( pthread_mutex_unlock((pthread_mutex_t *)mutex), /* */); | |
| 810 } | |
| 811 | |
| 812 static __inline__ void fd_cleanup_rwlock( void * rwlock ) | |
| 813 { | |
| 814 CHECK_POSIX_DO( pthread_rwlock_unlock((pthread_rwlock_t *)rwlock), /* */); | |
| 815 } | |
| 816 | |
| 817 static __inline__ void fd_cleanup_buffer( void * buffer ) | |
| 818 { | |
| 819 free(buffer); | |
| 820 } | |
|
24
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diff
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|
821 static __inline__ void fd_cleanup_socket(void * sockptr) |
|
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|
822 { |
|
191
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diff
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|
823 if (sockptr && (*(int *)sockptr > 0)) { |
| 179 | 824 CHECK_SYS_DO( close(*(int *)sockptr), /* ignore */ ); |
| 184 | 825 *(int *)sockptr = -1; |
|
24
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diff
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|
826 } |
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827 } |
| 0 | 828 |
|
235
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829 |
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830 /*============================================================*/ |
| 0 | 831 /* LISTS */ |
| 832 /*============================================================*/ | |
| 833 | |
| 834 /* The following structure represents a chained list element */ | |
| 835 struct fd_list { | |
| 836 struct fd_list *next; /* next element in the list */ | |
| 837 struct fd_list *prev; /* previous element in the list */ | |
| 838 struct fd_list *head; /* head of the list */ | |
|
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|
839 void *o; /* additional pointer, used for any purpose (ex: start of the parent object) */ |
| 0 | 840 }; |
| 841 | |
| 842 /* Initialize a list element */ | |
|
14
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843 #define FD_LIST_INITIALIZER( _list_name ) \ |
|
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844 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = NULL } |
|
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845 #define FD_LIST_INITIALIZER_O( _list_name, _obj ) \ |
|
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diff
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846 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = _obj } |
|
618
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diff
changeset
|
847 void fd_list_init ( struct fd_list * list, void * obj ); |
| 0 | 848 |
| 849 /* Return boolean, true if the list is empty */ | |
|
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850 #define FD_IS_LIST_EMPTY( _list ) ((((struct fd_list *)(_list))->head == (_list)) && (((struct fd_list *)(_list))->next == (_list))) |
| 0 | 851 |
| 852 /* Insert an item in a list at known position */ | |
| 853 void fd_list_insert_after ( struct fd_list * ref, struct fd_list * item ); | |
| 854 void fd_list_insert_before ( struct fd_list * ref, struct fd_list * item ); | |
| 855 | |
|
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|
856 /* Move all elements from a list at the end of another */ |
|
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|
857 void fd_list_move_end(struct fd_list * ref, struct fd_list * senti); |
|
67ca08d5bc48
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diff
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|
858 |
|
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diff
changeset
|
859 /* Insert an item in an ordered list -- ordering function must be provided. If duplicate object found, EEXIST and it is returned in ref_duplicate */ |
| 0 | 860 int fd_list_insert_ordered( struct fd_list * head, struct fd_list * item, int (*cmp_fct)(void *, void *), void ** ref_duplicate); |
| 861 | |
| 862 /* Unlink an item from a list */ | |
| 863 void fd_list_unlink ( struct fd_list * item ); | |
| 864 | |
|
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865 |
|
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|
866 |
| 0 | 867 |
| 868 /*============================================================*/ | |
| 869 /* DICTIONARY */ | |
| 870 /*============================================================*/ | |
|
618
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871 |
| 0 | 872 /* Structure that contains the complete dictionary definitions */ |
| 873 struct dictionary; | |
| 874 | |
| 875 /* Structure that contains a dictionary object */ | |
| 876 struct dict_object; | |
| 877 | |
| 878 /* Types of object in the dictionary. */ | |
| 879 enum dict_object_type { | |
| 880 DICT_VENDOR = 1, /* Vendor */ | |
| 881 DICT_APPLICATION, /* Diameter Application */ | |
| 882 DICT_TYPE, /* AVP data type */ | |
| 883 DICT_ENUMVAL, /* Named constant (value of an enumerated AVP type) */ | |
| 884 DICT_AVP, /* AVP */ | |
| 885 DICT_COMMAND, /* Diameter Command */ | |
| 886 DICT_RULE /* a Rule for AVP in command or grouped AVP */ | |
| 887 #define DICT_TYPE_MAX DICT_RULE | |
| 888 }; | |
| 889 | |
| 890 /* Initialize a dictionary */ | |
| 891 int fd_dict_init(struct dictionary ** dict); | |
| 892 /* Destroy a dictionary */ | |
| 893 int fd_dict_fini(struct dictionary ** dict); | |
| 894 | |
| 895 /* | |
| 896 * FUNCTION: fd_dict_new | |
| 897 * | |
| 898 * PARAMETERS: | |
| 899 * dict : Pointer to the dictionnary where the object is created | |
| 900 * type : What kind of object must be created | |
| 901 * data : pointer to the data for the object. | |
| 972 | 902 * type parameter is used to determine the type of data (see below for detail). |
| 0 | 903 * parent : a reference to a parent object, if needed. |
| 904 * ref : upon successful creation, reference to new object is stored here if !null. | |
| 905 * | |
| 906 * DESCRIPTION: | |
| 907 * Create a new object in the dictionary. | |
| 908 * See following object sections in this header file for more information on data and parent parameters format. | |
| 909 * | |
| 910 * RETURN VALUE: | |
| 911 * 0 : The object is created in the dictionary. | |
| 912 * EINVAL : A parameter is invalid. | |
| 913 * EEXIST : This object is already defined in the dictionary (with conflicting data). | |
| 914 * If "ref" is not NULL, it points to the existing element on return. | |
| 915 * (other standard errors may be returned, too, with their standard meaning. Example: | |
| 916 * ENOMEM : Memory allocation for the new object element failed.) | |
| 917 */ | |
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918 int fd_dict_new ( struct dictionary * dict, enum dict_object_type type, void * data, struct dict_object * parent, struct dict_object ** ref ); |
| 0 | 919 |
| 920 /* | |
| 921 * FUNCTION: fd_dict_search | |
| 922 * | |
| 923 * PARAMETERS: | |
| 924 * dict : Pointer to the dictionnary where the object is searched | |
| 925 * type : type of object that is being searched | |
| 972 | 926 * criteria : how the object must be searched. See object-related sections below for more information. |
| 0 | 927 * what : depending on criteria, the data that must be searched. |
| 928 * result : On successful return, pointer to the object is stored here. | |
| 929 * retval : this value is returned if the object is not found and result is not NULL. | |
| 930 * | |
| 931 * DESCRIPTION: | |
| 932 * Perform a search in the dictionary. | |
| 972 | 933 * See the object-specific sections below to find how to look for each objects. |
| 0 | 934 * If the "result" parameter is NULL, the function is used to check if an object is in the dictionary. |
| 935 * Otherwise, a reference to the object is stored in result if found. | |
| 936 * If result is not NULL and the object is not found, retval is returned (should be 0 or ENOENT usually) | |
| 937 * | |
| 938 * RETURN VALUE: | |
| 939 * 0 : The object has been found in the dictionary, or *result is NULL. | |
| 940 * EINVAL : A parameter is invalid. | |
| 941 * ENOENT : No matching object has been found, and result was NULL. | |
| 942 */ | |
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943 int fd_dict_search ( struct dictionary * dict, enum dict_object_type type, int criteria, const void * what, struct dict_object ** result, int retval ); |
| 0 | 944 |
| 945 /* Special case: get the generic error command object */ | |
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946 int fd_dict_get_error_cmd(struct dictionary * dict, struct dict_object ** obj); |
| 0 | 947 |
| 948 /* | |
| 949 * FUNCTION: fd_dict_getval | |
| 950 * | |
| 951 * PARAMETERS: | |
| 952 * object : Pointer to a dictionary object. | |
| 953 * data : pointer to a structure to hold the data for the object. | |
| 954 * The type is the same as "data" parameter in fd_dict_new function. | |
| 955 * | |
| 956 * DESCRIPTION: | |
| 957 * Retrieve content of a dictionary object. | |
| 958 * See following object sections in this header file for more information on data and parent parameters format. | |
| 959 * | |
| 960 * RETURN VALUE: | |
| 961 * 0 : The content of the object has been retrieved. | |
| 962 * EINVAL : A parameter is invalid. | |
| 963 */ | |
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964 int fd_dict_getval ( struct dict_object * object, void * val); |
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965 int fd_dict_gettype ( struct dict_object * object, enum dict_object_type * type); |
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966 int fd_dict_getdict ( struct dict_object * object, struct dictionary ** dict); |
| 0 | 967 |
| 968 /* Debug functions */ | |
| 969 void fd_dict_dump_object(struct dict_object * obj); | |
| 970 void fd_dict_dump(struct dictionary * dict); | |
| 971 | |
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972 /* Function to access full contents of the dictionary, see doc in dictionary.c */ |
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973 int fd_dict_getlistof(int criteria, void * parent, struct fd_list ** sentinel); |
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974 |
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975 /* Function to remove an entry from the dictionary. |
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976 This cannot be used if the object has children (for example a vendor with vendor-specific AVPs). |
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977 In such case, the children must be removed first. */ |
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978 int fd_dict_delete(struct dict_object * obj); |
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979 |
| 0 | 980 /* |
| 981 *************************************************************************** | |
| 982 * | |
| 983 * Vendor object | |
| 984 * | |
| 985 * These types are used to manage vendors in the dictionary | |
| 986 * | |
| 987 *************************************************************************** | |
| 988 */ | |
| 989 | |
| 990 /* Type to hold a Vendor ID: "SMI Network Management Private Enterprise Codes" (RFC3232) */ | |
| 991 typedef uint32_t vendor_id_t; | |
| 992 | |
| 993 /* Type to hold data associated to a vendor */ | |
| 994 struct dict_vendor_data { | |
| 995 vendor_id_t vendor_id; /* ID of a vendor */ | |
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996 char * vendor_name; /* The name of this vendor */ |
| 0 | 997 }; |
| 998 | |
| 999 /* The criteria for searching a vendor object in the dictionary */ | |
| 1000 enum { | |
| 1001 VENDOR_BY_ID = 10, /* "what" points to a vendor_id_t */ | |
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1002 VENDOR_BY_NAME, /* "what" points to a char * */ |
| 972 | 1003 VENDOR_OF_APPLICATION /* "what" points to a struct dict_object containing an application (see below) */ |
| 0 | 1004 }; |
| 1005 | |
| 1006 /*** | |
| 1007 * API usage : | |
| 1008 | |
| 1009 Note: the value of "vendor_name" is copied when the object is created, and the string may be disposed afterwards. | |
| 1010 On the other side, when value is retrieved with dict_getval, the string is not copied and MUST NOT be freed. It will | |
| 1011 be freed automatically along with the object itself with call to dict_fini later. | |
| 1012 | |
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1013 - fd_dict_new: |
| 0 | 1014 The "parent" parameter is not used for vendors. |
| 1015 Sample code to create a vendor: | |
| 1016 { | |
| 1017 int ret; | |
| 1018 struct dict_object * myvendor; | |
| 1019 struct dict_vendor_data myvendordata = { 23455, "my vendor name" }; -- just an example... | |
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1020 ret = fd_dict_new ( dict, DICT_VENDOR, &myvendordata, NULL, &myvendor ); |
| 0 | 1021 } |
| 1022 | |
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1023 - fd_dict_search: |
| 0 | 1024 Sample codes to look for a vendor object, by its id or name: |
| 1025 { | |
| 1026 int ret; | |
| 1027 struct dict_object * vendor_found; | |
| 1028 vendor_id_t vendorid = 23455; | |
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1029 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_ID, &vendorid, &vendor_found, ENOENT); |
| 0 | 1030 - or - |
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1031 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &vendor_found, ENOENT); |
| 0 | 1032 } |
| 1033 | |
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1034 - fd_dict_getval: |
| 0 | 1035 Sample code to retrieve the data from a vendor object: |
| 1036 { | |
| 1037 int ret; | |
| 1038 struct dict_object * myvendor; | |
| 1039 struct dict_vendor_data myvendordata; | |
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1040 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &myvendor, ENOENT); |
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1041 ret = fd_dict_getval ( myvendor, &myvendordata ); |
| 0 | 1042 printf("my vendor id: %d\n", myvendordata.vendor_id ); |
| 1043 } | |
| 1044 | |
| 1045 */ | |
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1046 |
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1047 /* Special function: */ |
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1048 uint32_t * fd_dict_get_vendorid_list(struct dictionary * dict); |
| 0 | 1049 |
| 1050 /* | |
| 1051 *************************************************************************** | |
| 1052 * | |
| 1053 * Application object | |
| 1054 * | |
| 1055 * These types are used to manage Diameter applications in the dictionary | |
| 1056 * | |
| 1057 *************************************************************************** | |
| 1058 */ | |
| 1059 | |
| 1060 /* Type to hold a Diameter application ID: IANA assigned value for this application. */ | |
| 1061 typedef uint32_t application_id_t; | |
| 1062 | |
| 1063 /* Type to hold data associated to an application */ | |
| 1064 struct dict_application_data { | |
| 1065 application_id_t application_id; /* ID of the application */ | |
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1066 char * application_name; /* The name of this application */ |
| 0 | 1067 }; |
| 1068 | |
| 1069 /* The criteria for searching an application object in the dictionary */ | |
| 1070 enum { | |
| 1071 APPLICATION_BY_ID = 20, /* "what" points to a application_id_t */ | |
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1072 APPLICATION_BY_NAME, /* "what" points to a char * */ |
| 972 | 1073 APPLICATION_OF_TYPE, /* "what" points to a struct dict_object containing a type object (see below) */ |
| 1074 APPLICATION_OF_COMMAND /* "what" points to a struct dict_object containing a command (see below) */ | |
| 0 | 1075 }; |
| 1076 | |
| 1077 /*** | |
| 1078 * API usage : | |
| 1079 | |
| 1080 The "parent" parameter of dict_new may point to a vendor object to inform of what vendor defines the application. | |
| 1081 for standard-track applications, the "parent" parameter should be NULL. | |
| 1082 The vendor associated to an application is retrieved with VENDOR_OF_APPLICATION search criteria on vendors. | |
| 1083 | |
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1084 - fd_dict_new: |
| 0 | 1085 Sample code for application creation: |
| 1086 { | |
| 1087 int ret; | |
| 1088 struct dict_object * vendor; | |
| 1089 struct dict_object * appl; | |
| 1090 struct dict_vendor_data vendor_data = { | |
| 1091 23455, | |
| 1092 "my vendor name" | |
| 1093 }; | |
| 1094 struct dict_application_data app_data = { | |
| 1095 9789, | |
| 1096 "my vendor's application" | |
| 1097 }; | |
| 1098 | |
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1099 ret = fd_dict_new ( dict, DICT_VENDOR, &vendor_data, NULL, &vendor ); |
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1100 ret = fd_dict_new ( dict, DICT_APPLICATION, &app_data, vendor, &appl ); |
| 0 | 1101 } |
| 1102 | |
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1103 - fd_dict_search: |
| 0 | 1104 Sample code to retrieve the vendor of an application |
| 1105 { | |
| 1106 int ret; | |
| 1107 struct dict_object * vendor, * appli; | |
| 1108 | |
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1109 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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1110 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_OF_APPLICATION, appli, &vendor, ENOENT); |
| 0 | 1111 } |
| 1112 | |
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1113 - fd_dict_getval: |
| 0 | 1114 Sample code to retrieve the data from an application object: |
| 1115 { | |
| 1116 int ret; | |
| 1117 struct dict_object * appli; | |
| 1118 struct dict_application_data appl_data; | |
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1119 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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1120 ret = fd_dict_getval ( appli, &appl_data ); |
| 0 | 1121 printf("my application id: %s\n", appl_data.application_id ); |
| 1122 } | |
| 1123 | |
| 1124 */ | |
| 1125 | |
| 1126 /* | |
| 1127 *************************************************************************** | |
| 1128 * | |
| 1129 * Type object | |
| 1130 * | |
| 1131 * These types are used to manage AVP data types in the dictionary | |
| 1132 * | |
| 1133 *************************************************************************** | |
| 1134 */ | |
| 1135 | |
| 1136 /* Type to store any AVP value */ | |
| 1137 union avp_value { | |
| 1138 struct { | |
| 1139 uint8_t *data; /* bytes buffer */ | |
| 1140 size_t len; /* length of the data buffer */ | |
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1141 } os; /* Storage for an octet string */ |
| 0 | 1142 int32_t i32; /* integer 32 */ |
| 1143 int64_t i64; /* integer 64 */ | |
| 1144 uint32_t u32; /* unsigned 32 */ | |
| 1145 uint64_t u64; /* unsigned 64 */ | |
| 1146 float f32; /* float 32 */ | |
| 1147 double f64; /* float 64 */ | |
| 1148 }; | |
| 1149 | |
| 1150 /* These are the basic AVP types defined in RFC3588bis */ | |
| 1151 enum dict_avp_basetype { | |
| 1152 AVP_TYPE_GROUPED, | |
| 1153 AVP_TYPE_OCTETSTRING, | |
| 1154 AVP_TYPE_INTEGER32, | |
| 1155 AVP_TYPE_INTEGER64, | |
| 1156 AVP_TYPE_UNSIGNED32, | |
| 1157 AVP_TYPE_UNSIGNED64, | |
| 1158 AVP_TYPE_FLOAT32, | |
| 1159 AVP_TYPE_FLOAT64 | |
| 1160 #define AVP_TYPE_MAX AVP_TYPE_FLOAT64 | |
| 1161 }; | |
| 1162 | |
| 1163 /* Callbacks that can be associated with a derived type to easily interpret the AVP value. */ | |
| 1164 /* | |
| 1165 * CALLBACK: dict_avpdata_interpret | |
| 1166 * | |
| 1167 * PARAMETERS: | |
| 1168 * val : Pointer to the AVP value that must be interpreted. | |
| 1169 * interpreted : The result of interpretation is stored here. The format and meaning depends on each type. | |
| 1170 * | |
| 1171 * DESCRIPTION: | |
| 1172 * This callback can be provided with a derived type in order to facilitate the interpretation of formated data. | |
| 1173 * For example, when an AVP of type "Address" is received, it can be used to convert the octetstring into a struct sockaddr. | |
| 1174 * This callback is not called directly, but through the message's API msg_avp_value_interpret function. | |
| 1175 * | |
| 1176 * RETURN VALUE: | |
| 1177 * 0 : Operation complete. | |
| 1178 * !0 : An error occurred, the error code is returned. | |
| 1179 */ | |
| 1180 typedef int (*dict_avpdata_interpret) (union avp_value * value, void * interpreted); | |
| 1181 /* | |
| 1182 * CALLBACK: dict_avpdata_encode | |
| 1183 * | |
| 1184 * PARAMETERS: | |
| 1185 * data : The formated data that must be stored in the AVP value. | |
| 1186 * val : Pointer to the AVP value storage area where the data must be stored. | |
| 1187 * | |
| 1188 * DESCRIPTION: | |
| 1189 * This callback can be provided with a derived type in order to facilitate the encoding of formated data. | |
| 1190 * For example, it can be used to convert a struct sockaddr in an AVP value of type Address. | |
| 1191 * This callback is not called directly, but through the message's API msg_avp_value_encode function. | |
| 1192 * If the callback is defined for an OctetString based type, the created string must be malloc'd. free will be called | |
| 1193 * automatically later. | |
| 1194 * | |
| 1195 * RETURN VALUE: | |
| 1196 * 0 : Operation complete. | |
| 1197 * !0 : An error occurred, the error code is returned. | |
| 1198 */ | |
| 1199 typedef int (*dict_avpdata_encode) (void * data, union avp_value * val); | |
| 1200 | |
| 1201 | |
| 1202 /* Type to hold data associated to a derived AVP data type */ | |
| 1203 struct dict_type_data { | |
| 1204 enum dict_avp_basetype type_base; /* How the data of such AVP must be interpreted */ | |
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1205 char * type_name; /* The name of this type */ |
| 0 | 1206 dict_avpdata_interpret type_interpret;/* cb to convert the AVP value in more comprehensive format (or NULL) */ |
| 1207 dict_avpdata_encode type_encode; /* cb to convert formatted data into an AVP value (or NULL) */ | |
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1208 char * (*type_dump)(union avp_value * val); /* cb called by fd_msg_dump_one for this type of data (if != NULL). Returned string must be freed. */ |
| 0 | 1209 }; |
| 1210 | |
| 1211 /* The criteria for searching a type object in the dictionary */ | |
| 1212 enum { | |
|
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1213 TYPE_BY_NAME = 30, /* "what" points to a char * */ |
| 972 | 1214 TYPE_OF_ENUMVAL, /* "what" points to a struct dict_object containing an enumerated constant (DICT_ENUMVAL, see below). */ |
| 0 | 1215 TYPE_OF_AVP /* "what" points to a struct dict_object containing an AVP object. */ |
| 1216 }; | |
| 1217 | |
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1218 /**** |
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1219 Callbacks defined in libfdproto/dictionary_functions.c file -- see that file for usage. |
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1220 */ |
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1221 |
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1222 /* Convert an Address type AVP into a struct sockaddr_storage */ |
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1223 int fd_dictfct_Address_encode(void * data, union avp_value * avp_value); |
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1224 int fd_dictfct_Address_interpret(union avp_value * avp_value, void * interpreted); |
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1225 char * fd_dictfct_Address_dump(union avp_value * avp_value); |
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1226 |
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1227 /* Display the content of an AVP of type UTF8String in the log file */ |
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1228 char * fd_dictfct_UTF8String_dump(union avp_value * avp_value); |
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1229 |
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1230 /* For Time AVPs, map with time_t value directly */ |
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1231 int fd_dictfct_Time_encode(void * data, union avp_value * avp_value); |
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1232 int fd_dictfct_Time_interpret(union avp_value * avp_value, void * interpreted); |
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1233 char * fd_dictfct_Time_dump(union avp_value * avp_value); |
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1234 |
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1235 |
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1236 |
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1237 /****/ |
| 0 | 1238 |
| 1239 /*** | |
| 1240 * API usage : | |
| 1241 | |
|
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1242 - fd_dict_new: |
| 0 | 1243 The "parent" parameter may point to an application object, when a type is defined by a Diameter application. |
| 1244 | |
| 1245 Sample code: | |
| 1246 { | |
| 1247 int ret; | |
| 1248 struct dict_object * mytype; | |
| 1249 struct dict_type_data mytypedata = | |
| 1250 { | |
| 1251 AVP_TYPE_OCTETSTRING, | |
| 1252 "Address", | |
| 1253 NULL, | |
| 1254 NULL | |
| 1255 }; | |
|
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1256 ret = fd_dict_new ( dict, DICT_TYPE, &mytypedata, NULL, &mytype ); |
| 0 | 1257 } |
| 1258 | |
|
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1259 - fd_dict_search: |
| 0 | 1260 Sample code: |
| 1261 { | |
| 1262 int ret; | |
| 1263 struct dict_object * address_type; | |
|
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1264 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Address", &address_type, ENOENT); |
| 0 | 1265 } |
| 1266 | |
| 1267 */ | |
|
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1268 |
| 0 | 1269 /* |
| 1270 *************************************************************************** | |
| 1271 * | |
| 1272 * Enumerated values object | |
| 1273 * | |
| 1274 * These types are used to manage named constants of some AVP, | |
|
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1275 * for enumerated types. freeDiameter allows constants for types others than Unsigned32 |
| 0 | 1276 * |
| 1277 *************************************************************************** | |
| 1278 */ | |
| 1279 | |
| 1280 /* Type to hold data of named constants for AVP */ | |
| 1281 struct dict_enumval_data { | |
|
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1282 char * enum_name; /* The name of this constant */ |
| 0 | 1283 union avp_value enum_value; /* Value of the constant. Union term depends on parent type's base type. */ |
| 1284 }; | |
| 1285 | |
| 1286 /* The criteria for searching a constant in the dictionary */ | |
| 1287 enum { | |
| 972 | 1288 ENUMVAL_BY_STRUCT = 40, /* "what" points to a struct dict_enumval_request as defined below */ |
|
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1289 ENUMVAL_BY_NAME, /* This cannot be used for researches */ |
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1290 ENUMVAL_BY_VALUE /* This cannot be used for researches */ |
| 0 | 1291 }; |
| 1292 | |
| 1293 struct dict_enumval_request { | |
| 1294 /* Identifier of the parent type, one of the following must not be NULL */ | |
| 1295 struct dict_object *type_obj; | |
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1296 char * type_name; |
| 0 | 1297 |
| 1298 /* Search criteria for the constant */ | |
| 1299 struct dict_enumval_data search; /* search.enum_value is used only if search.enum_name == NULL */ | |
| 1300 }; | |
| 1301 | |
| 1302 /*** | |
| 1303 * API usage : | |
| 1304 | |
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1305 - fd_dict_new: |
| 0 | 1306 The "parent" parameter must point to a derived type object. |
| 1307 Sample code to create a type "Boolean" with two constants "True" and "False": | |
| 1308 { | |
| 1309 int ret; | |
| 1310 struct dict_object * type_boolean; | |
| 1311 struct dict_type_data type_boolean_data = | |
| 1312 { | |
| 1313 AVP_TYPE_INTEGER32, | |
| 1314 "Boolean", | |
| 1315 NULL, | |
| 1316 NULL | |
| 1317 }; | |
| 1318 struct dict_enumval_data boolean_false = | |
| 1319 { | |
| 1320 .enum_name="False", | |
| 1321 .enum_value.i32 = 0 | |
| 1322 }; | |
| 1323 struct dict_enumval_data boolean_true = | |
| 1324 { | |
| 1325 .enum_name="True", | |
| 1326 .enum_value.i32 = -1 | |
| 1327 }; | |
|
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1328 ret = fd_dict_new ( dict, DICT_TYPE, &type_boolean_data, NULL, &type_boolean ); |
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1329 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_false, type_boolean, NULL ); |
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1330 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_true , type_boolean, NULL ); |
| 0 | 1331 |
| 1332 } | |
| 1333 | |
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1334 - fd_dict_search: |
| 0 | 1335 Sample code to look for a constant name, by its value: |
| 1336 { | |
| 1337 int ret; | |
| 1338 struct dict_object * value_found; | |
| 1339 struct dict_enumval_request boolean_by_value = | |
| 1340 { | |
| 1341 .type_name = "Boolean", | |
| 1342 .search.enum_name=NULL, | |
| 1343 .search.enum_value.i32 = -1 | |
| 1344 }; | |
| 1345 | |
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1346 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
| 0 | 1347 } |
| 1348 | |
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1349 - fd_dict_getval: |
| 0 | 1350 Sample code to retrieve the data from a constant object: |
| 1351 { | |
| 1352 int ret; | |
| 1353 struct dict_object * value_found; | |
| 1354 struct dict_enumval_data boolean_data = NULL; | |
| 1355 struct dict_enumval_request boolean_by_value = | |
| 1356 { | |
| 1357 .type_name = "Boolean", | |
| 1358 .search.enum_name=NULL, | |
| 1359 .search.enum_value.i32 = 0 | |
| 1360 }; | |
| 1361 | |
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1362 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
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1363 ret = fd_dict_getval ( value_found, &boolean_data ); |
| 0 | 1364 printf(" Boolean with value 0: %s", boolean_data.enum_name ); |
| 1365 } | |
| 1366 */ | |
| 1367 | |
| 1368 /* | |
| 1369 *************************************************************************** | |
| 1370 * | |
| 1371 * AVP object | |
| 1372 * | |
| 1373 * These objects are used to manage AVP definitions in the dictionary | |
| 1374 * | |
| 1375 *************************************************************************** | |
| 1376 */ | |
| 1377 | |
| 1378 /* Type to hold an AVP code. For vendor 0, these codes are assigned by IANA. Otherwise, it is managed by the vendor */ | |
| 1379 typedef uint32_t avp_code_t; | |
| 1380 | |
| 1381 /* Values of AVP flags */ | |
| 1382 #define AVP_FLAG_VENDOR 0x80 | |
| 1383 #define AVP_FLAG_MANDATORY 0x40 | |
| 1384 #define AVP_FLAG_RESERVED3 0x20 | |
| 1385 #define AVP_FLAG_RESERVED4 0x10 | |
| 1386 #define AVP_FLAG_RESERVED5 0x08 | |
| 1387 #define AVP_FLAG_RESERVED6 0x04 | |
| 1388 #define AVP_FLAG_RESERVED7 0x02 | |
| 1389 #define AVP_FLAG_RESERVED8 0x01 | |
| 1390 | |
|
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1391 /* For dumping flags and values */ |
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1392 #define DUMP_AVPFL_str "%c%c" |
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1393 #define DUMP_AVPFL_val(_val) (_val & AVP_FLAG_VENDOR)?'V':'-' , (_val & AVP_FLAG_MANDATORY)?'M':'-' |
| 0 | 1394 |
| 1395 /* Type to hold data associated to an avp */ | |
| 1396 struct dict_avp_data { | |
| 1397 avp_code_t avp_code; /* Code of the avp */ | |
| 1398 vendor_id_t avp_vendor; /* Vendor of the AVP, or 0 */ | |
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1399 char * avp_name; /* Name of this AVP */ |
| 0 | 1400 uint8_t avp_flag_mask; /* Mask of fixed AVP flags */ |
| 1401 uint8_t avp_flag_val; /* Values of the fixed flags */ | |
| 1402 enum dict_avp_basetype avp_basetype; /* Basic type of data found in the AVP */ | |
| 1403 }; | |
| 1404 | |
| 1405 /* The criteria for searching an avp object in the dictionary */ | |
| 1406 enum { | |
| 1407 AVP_BY_CODE = 50, /* "what" points to an avp_code_t, vendor is always 0 */ | |
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1408 AVP_BY_NAME, /* "what" points to a char *, vendor is always 0 */ |
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1409 AVP_BY_NAME_ALL_VENDORS,/* "what" points to a string. Might be quite slow... */ |
| 972 | 1410 AVP_BY_STRUCT, /* "what" points to a struct dict_avp_request_ex (see below) */ |
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1411 |
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1412 /* kept for backward compatibility, better use AVP_BY_STRUCT above instead */ |
| 972 | 1413 AVP_BY_CODE_AND_VENDOR, /* "what" points to a struct dict_avp_request (see below), where avp_vendor and avp_code are set */ |
| 1414 AVP_BY_NAME_AND_VENDOR /* "what" points to a struct dict_avp_request (see below), where avp_vendor and avp_name are set */ | |
| 0 | 1415 }; |
| 1416 | |
| 1417 /* Struct used for some researchs */ | |
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1418 struct dict_avp_request_ex { |
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1419 struct { |
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1420 /* Only one of the following fields must be set. */ |
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1421 struct dict_object * vendor; /* most efficient if already known, set to NULL to ignore */ |
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1422 vendor_id_t vendor_id; /* set to 0 to ignore -- prefer AVP_BY_CODE or AVP_BY_NAME for vendor 0 */ |
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1423 const char * vendor_name; /* set to NULL to ignore */ |
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1424 } avp_vendor; |
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1425 |
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1426 struct { |
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1427 /* Only one of the following fields must be set */ |
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1428 avp_code_t avp_code; /* set to 0 to ignore */ |
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1429 const char * avp_name; /* set to NULL to ignore */ |
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1430 } avp_data; |
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1431 }; |
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1432 |
| 0 | 1433 struct dict_avp_request { |
| 1434 vendor_id_t avp_vendor; | |
| 1435 avp_code_t avp_code; | |
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1436 char * avp_name; |
| 0 | 1437 }; |
| 1438 | |
| 1439 | |
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1440 |
| 0 | 1441 /*** |
| 1442 * API usage : | |
| 1443 | |
| 1444 If "parent" parameter is not NULL during AVP creation, it must point to a DICT_TYPE object. | |
| 1445 The extended type is then attached to the AVP. In case where it is an enumerated type, the value of | |
| 1446 AVP is automatically interpreted in debug messages, and in message checks. | |
| 1447 The derived type of an AVP can be retrieved with: dict_search ( DICT_TYPE, TYPE_OF_AVP, avp, ... ) | |
| 1448 | |
| 1449 To create the rules (ABNF) for children of Grouped AVP, see the DICT_RULE related part. | |
| 1450 | |
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1451 - fd_dict_new: |
| 0 | 1452 Sample code for AVP creation: |
| 1453 { | |
| 1454 int ret; | |
| 1455 struct dict_object * user_name_avp; | |
| 1456 struct dict_object * boolean_type; | |
| 1457 struct dict_object * sample_boolean_avp; | |
| 1458 struct dict_avp_data user_name_data = { | |
| 1459 1, // code | |
| 1460 0, // vendor | |
| 1461 "User-Name", // name | |
| 1462 AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, // fixed mask: V and M values must always be defined as follow. other flags can be set or cleared | |
| 1463 AVP_FLAG_MANDATORY, // the V flag must be cleared, the M flag must be set. | |
| 1464 AVP_TYPE_OCTETSTRING // User-Name AVP contains OctetString data (further precision such as UTF8String can be given with a parent derived type) | |
| 1465 }; | |
| 1466 struct dict_avp_data sample_boolean_data = { | |
| 1467 31337, | |
| 1468 23455, | |
| 1469 "Sample-Boolean", | |
| 1470 AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, | |
| 1471 AVP_FLAG_VENDOR, | |
| 1472 AVP_TYPE_INTEGER32 // This MUST be the same as parent type's | |
| 1473 }; | |
| 1474 | |
| 1475 -- Create an AVP with a base type -- | |
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1476 ret = fd_dict_new ( dict, DICT_AVP, &user_name_data, NULL, &user_name_avp ); |
| 0 | 1477 |
| 1478 -- Create an AVP with a derived type -- | |
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1479 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Boolean", &boolean_type, ENOENT); |
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1480 ret = fd_dict_new ( dict, DICT_AVP, &sample_boolean_data , boolean_type, &sample_boolean_avp ); |
| 0 | 1481 |
| 1482 } | |
| 1483 | |
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1484 - fd_dict_search: |
| 0 | 1485 Sample code to look for an AVP |
| 1486 { | |
| 1487 int ret; | |
| 1488 struct dict_object * avp_username; | |
| 1489 struct dict_object * avp_sampleboolean; | |
| 1490 struct dict_avp_request avpvendorboolean = | |
| 1491 { | |
| 1492 .avp_vendor = 23455, | |
| 1493 .avp_name = "Sample-Boolean" | |
| 1494 }; | |
| 1495 | |
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1496 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
| 0 | 1497 |
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1498 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME_AND_VENDOR, &avpvendorboolean, &avp_sampleboolean, ENOENT); |
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1499 |
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1500 -- this would also work, but be slower, because it has to search all vendor dictionaries -- |
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1501 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME_ALL_VENDORS, "Sample-Boolean", &avp_sampleboolean, ENOENT); |
| 0 | 1502 |
| 1503 } | |
| 1504 | |
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1505 - fd_dict_getval: |
| 0 | 1506 Sample code to retrieve the data from an AVP object: |
| 1507 { | |
| 1508 int ret; | |
| 1509 struct dict_object * avp_username; | |
| 1510 struct dict_avp_data user_name_data; | |
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1511 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
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1512 ret = fd_dict_getval ( avp_username, &user_name_data ); |
| 0 | 1513 printf("User-Name code: %d\n", user_name_data.avp_code ); |
| 1514 } | |
| 1515 | |
| 1516 */ | |
| 1517 | |
| 1518 /* | |
| 1519 *************************************************************************** | |
| 1520 * | |
| 1521 * Command object | |
| 1522 * | |
| 1523 * These types are used to manage commands objects in the dictionary | |
| 1524 * | |
| 1525 *************************************************************************** | |
| 1526 */ | |
| 1527 | |
| 1528 /* Type to hold a Diameter command code: IANA assigned values. 0x0-0x7fffff=standard, 0x800000-0xfffffd=vendors, 0xfffffe-0xffffff=experimental */ | |
| 1529 typedef uint32_t command_code_t; | |
| 1530 | |
| 1531 /* Values of command flags */ | |
| 1532 #define CMD_FLAG_REQUEST 0x80 | |
| 1533 #define CMD_FLAG_PROXIABLE 0x40 | |
| 1534 #define CMD_FLAG_ERROR 0x20 | |
| 1535 #define CMD_FLAG_RETRANSMIT 0x10 | |
| 1536 #define CMD_FLAG_RESERVED5 0x08 | |
| 1537 #define CMD_FLAG_RESERVED6 0x04 | |
| 1538 #define CMD_FLAG_RESERVED7 0x02 | |
| 1539 #define CMD_FLAG_RESERVED8 0x01 | |
| 1540 | |
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1541 /* For dumping flags and values */ |
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1542 #define DUMP_CMDFL_str "%c%c%c%c" |
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1543 #define DUMP_CMDFL_val(_val) (_val & CMD_FLAG_REQUEST)?'R':'-' , (_val & CMD_FLAG_PROXIABLE)?'P':'-' , (_val & CMD_FLAG_ERROR)?'E':'-' , (_val & CMD_FLAG_RETRANSMIT)?'T':'-' |
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1544 |
| 0 | 1545 /* Type to hold data associated to a command */ |
| 1546 struct dict_cmd_data { | |
| 1547 command_code_t cmd_code; /* code of the command */ | |
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1548 char * cmd_name; /* Name of the command */ |
| 0 | 1549 uint8_t cmd_flag_mask; /* Mask of fixed-value flags */ |
| 1550 uint8_t cmd_flag_val; /* values of the fixed flags */ | |
| 1551 }; | |
| 1552 | |
| 1553 /* The criteria for searching an avp object in the dictionary */ | |
| 1554 enum { | |
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1555 CMD_BY_NAME = 60, /* "what" points to a char * */ |
| 0 | 1556 CMD_BY_CODE_R, /* "what" points to a command_code_t. The "Request" command is returned. */ |
| 1557 CMD_BY_CODE_A, /* "what" points to a command_code_t. The "Answer" command is returned. */ | |
| 1558 CMD_ANSWER /* "what" points to a struct dict_object of a request command. The corresponding "Answer" command is returned. */ | |
| 1559 }; | |
| 1560 | |
| 1561 | |
| 1562 /*** | |
| 1563 * API usage : | |
| 1564 | |
| 1565 The "parent" parameter of dict_new may point to an application object to inform of what application defines the command. | |
| 1566 The application associated to a command is retrieved with APPLICATION_OF_COMMAND search criteria on applications. | |
| 1567 | |
| 1568 To create the rules for children of commands, see the DICT_RULE related part. | |
| 1569 | |
| 1570 Note that the "Request" and "Answer" commands are two independant objects. This allows to have different rules for each. | |
| 1571 | |
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1572 - fd_dict_new: |
| 0 | 1573 Sample code for command creation: |
| 1574 { | |
| 1575 int ret; | |
| 1576 struct dict_object * cer; | |
| 1577 struct dict_object * cea; | |
| 1578 struct dict_cmd_data ce_data = { | |
| 1579 257, // code | |
| 1580 "Capabilities-Exchange-Request", // name | |
| 1581 CMD_FLAG_REQUEST, // mask | |
| 1582 CMD_FLAG_REQUEST // value. Only the "R" flag is constrained here, set. | |
| 1583 }; | |
| 1584 | |
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1585 ret = fd_dict_new (dict, DICT_COMMAND, &ce_data, NULL, &cer ); |
| 0 | 1586 |
| 1587 ce_data.cmd_name = "Capabilities-Exchange-Answer"; | |
| 1588 ce_data.cmd_flag_val = 0; // Same constraint on "R" flag, but this time it must be cleared. | |
| 1589 | |
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1590 ret = fd_dict_new ( dict, DICT_COMMAND, &ce_data, NULL, &cea ); |
| 0 | 1591 } |
| 1592 | |
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1593 - fd_dict_search: |
| 0 | 1594 Sample code to look for a command |
| 1595 { | |
| 1596 int ret; | |
| 1597 struct dict_object * cer, * cea; | |
| 1598 command_code_t code = 257; | |
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1599 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1600 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_CODE_R, &code, &cer, ENOENT); |
| 0 | 1601 } |
| 1602 | |
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1603 - fd_dict_getval: |
| 0 | 1604 Sample code to retrieve the data from a command object: |
| 1605 { | |
| 1606 int ret; | |
| 1607 struct dict_object * cer; | |
| 1608 struct dict_object * cea; | |
| 1609 struct dict_cmd_data cea_data; | |
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1610 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1611 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_ANSWER, cer, &cea, ENOENT); |
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1612 ret = fd_dict_getval ( cea, &cea_data ); |
| 0 | 1613 printf("Answer to CER: %s\n", cea_data.cmd_name ); |
| 1614 } | |
| 1615 | |
| 1616 */ | |
| 1617 | |
| 1618 /* | |
| 1619 *************************************************************************** | |
| 1620 * | |
| 1621 * Rule object | |
| 1622 * | |
| 1623 * These objects are used to manage rules in the dictionary (ABNF implementation) | |
| 1624 * This is used for checking messages validity (more powerful than a DTD) | |
| 1625 * | |
| 1626 *************************************************************************** | |
| 1627 */ | |
| 1628 | |
| 1629 /* This defines the kind of rule that is defined */ | |
| 1630 enum rule_position { | |
| 1631 RULE_FIXED_HEAD = 1, /* The AVP must be at the head of the group. The rule_order field is used to specify the position. */ | |
| 1632 RULE_REQUIRED, /* The AVP must be present in the parent, but its position is not defined. */ | |
| 1633 RULE_OPTIONAL, /* The AVP may be present in the message. Used to specify a max number of occurences for example */ | |
| 1634 RULE_FIXED_TAIL /* The AVP must be at the end of the group. The rule_order field is used to specify the position. */ | |
| 1635 }; | |
| 1636 | |
| 1637 /* Content of a RULE object data */ | |
| 1638 struct dict_rule_data { | |
| 1639 struct dict_object *rule_avp; /* Pointer to the AVP object that is concerned by this rule */ | |
| 1640 enum rule_position rule_position; /* The position in which the rule_avp must appear in the parent */ | |
| 1641 unsigned rule_order; /* for RULE_FIXED_* rules, the place. 1,2,3.. for HEAD rules; ...,3,2,1 for TAIL rules. */ | |
| 1642 int rule_min; /* Minimum number of occurences. -1 means "default": 0 for optional rules, 1 for other rules */ | |
| 1643 int rule_max; /* Maximum number of occurences. -1 means no maximum. 0 means the AVP is forbidden. */ | |
| 1644 }; | |
| 1645 | |
| 1646 /* The criteria for searching a rule in the dictionary */ | |
| 1647 enum { | |
| 972 | 1648 RULE_BY_AVP_AND_PARENT = 70 /* "what" points to a struct dict_rule_request -- see below. This is used to query "what is the rule for this AVP in this group?" */ |
| 0 | 1649 }; |
| 1650 | |
| 1651 /* Structure for querying the dictionary about a rule */ | |
| 1652 struct dict_rule_request { | |
| 1653 struct dict_object *rule_parent; /* The grouped avp or command to which the rule apply */ | |
| 1654 struct dict_object *rule_avp; /* The AVP concerned by this rule */ | |
| 1655 }; | |
| 1656 | |
| 1657 | |
| 1658 /*** | |
| 1659 * API usage : | |
| 1660 | |
| 1661 The "parent" parameter can not be NULL. It points to the object (grouped avp or command) to which this rule apply (i.e. for which the ABNF is defined). | |
| 1662 | |
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1663 - fd_dict_new: |
| 0 | 1664 Sample code for rule creation. Let's create the Proxy-Info grouped AVP for example. |
| 1665 { | |
| 1666 int ret; | |
| 1667 struct dict_object * proxy_info_avp; | |
| 1668 struct dict_object * proxy_host_avp; | |
| 1669 struct dict_object * proxy_state_avp; | |
| 1670 struct dict_object * diameteridentity_type; | |
| 1671 struct dict_rule_data rule_data; | |
| 1672 struct dict_type_data di_type_data = { AVP_TYPE_OCTETSTRING, "DiameterIdentity", NULL, NULL }; | |
| 1673 struct dict_avp_data proxy_info_data = { 284, 0, "Proxy-Info", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_GROUPED }; | |
| 1674 struct dict_avp_data proxy_host_data = { 280, 0, "Proxy-Host", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
| 1675 struct dict_avp_data proxy_state_data = { 33, 0, "Proxy-State",AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
| 1676 | |
| 1677 -- Create the parent AVP | |
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1678 ret = fd_dict_new ( dict, DICT_AVP, &proxy_info_data, NULL, &proxy_info_avp ); |
| 0 | 1679 |
| 1680 -- Create the first child AVP. | |
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1681 ret = fd_dict_new ( dict, DICT_TYPE, &di_type_data, NULL, &diameteridentity_type ); |
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1682 ret = fd_dict_new ( dict, DICT_AVP, &proxy_host_data, diameteridentity_type, &proxy_host_avp ); |
| 0 | 1683 |
| 1684 -- Create the other child AVP | |
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1685 ret = fd_dict_new ( dict, DICT_AVP, &proxy_state_data, NULL, &proxy_state_avp ); |
| 0 | 1686 |
| 1687 -- Now we can create the rules. Both children AVP are mandatory. | |
| 1688 rule_data.rule_position = RULE_REQUIRED; | |
| 1689 rule_data.rule_min = -1; | |
| 1690 rule_data.rule_max = -1; | |
| 1691 | |
| 1692 rule_data.rule_avp = proxy_host_avp; | |
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1693 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
| 0 | 1694 |
| 1695 rule_data.rule_avp = proxy_state_avp; | |
|
3
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diff
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|
1696 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
| 0 | 1697 } |
| 1698 | |
|
3
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2
diff
changeset
|
1699 - fd_dict_search and fd_dict_getval are similar to previous examples. |
| 0 | 1700 |
| 1701 */ | |
| 1702 | |
| 1703 /* Define some hard-coded values */ | |
|
43
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34
diff
changeset
|
1704 /* Application */ |
|
2db15632a63d
Added a large part of connection establishment logic, to test
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diff
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|
1705 #define AI_RELAY 0xffffffff |
|
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Added a large part of connection establishment logic, to test
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diff
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|
1706 |
| 0 | 1707 /* Commands Codes */ |
| 1708 #define CC_CAPABILITIES_EXCHANGE 257 | |
| 1709 #define CC_RE_AUTH 258 | |
| 1710 #define CC_ACCOUNTING 271 | |
| 1711 #define CC_ABORT_SESSION 274 | |
| 1712 #define CC_SESSION_TERMINATION 275 | |
| 1713 #define CC_DEVICE_WATCHDOG 280 | |
| 1714 #define CC_DISCONNECT_PEER 282 | |
| 1715 | |
| 1716 /* AVPs (Vendor 0) */ | |
| 87 | 1717 #define AC_USER_NAME 1 |
| 0 | 1718 #define AC_PROXY_STATE 33 |
| 1719 #define AC_HOST_IP_ADDRESS 257 | |
| 1720 #define AC_AUTH_APPLICATION_ID 258 | |
| 1721 #define AC_ACCT_APPLICATION_ID 259 | |
| 1722 #define AC_VENDOR_SPECIFIC_APPLICATION_ID 260 | |
| 1723 #define AC_REDIRECT_HOST_USAGE 261 | |
| 1724 #define AC_REDIRECT_MAX_CACHE_TIME 262 | |
| 1725 #define AC_SESSION_ID 263 | |
| 1726 #define AC_ORIGIN_HOST 264 | |
| 1727 #define AC_SUPPORTED_VENDOR_ID 265 | |
| 1728 #define AC_VENDOR_ID 266 | |
| 1729 #define AC_FIRMWARE_REVISION 267 | |
| 1730 #define AC_RESULT_CODE 268 | |
| 1731 #define AC_PRODUCT_NAME 269 | |
| 1732 #define AC_DISCONNECT_CAUSE 273 | |
| 1733 #define ACV_DC_REBOOTING 0 | |
| 1734 #define ACV_DC_BUSY 1 | |
| 1735 #define ACV_DC_NOT_FRIEND 2 | |
| 1736 #define AC_ORIGIN_STATE_ID 278 | |
| 1737 #define AC_FAILED_AVP 279 | |
| 1738 #define AC_PROXY_HOST 280 | |
| 1739 #define AC_ERROR_MESSAGE 281 | |
| 1740 #define AC_ROUTE_RECORD 282 | |
| 1741 #define AC_DESTINATION_REALM 283 | |
| 1742 #define AC_PROXY_INFO 284 | |
| 1743 #define AC_REDIRECT_HOST 292 | |
| 1744 #define AC_DESTINATION_HOST 293 | |
| 1745 #define AC_ERROR_REPORTING_HOST 294 | |
| 1746 #define AC_ORIGIN_REALM 296 | |
| 1747 #define AC_INBAND_SECURITY_ID 299 | |
|
43
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diff
changeset
|
1748 #define ACV_ISI_NO_INBAND_SECURITY 0 |
|
2db15632a63d
Added a large part of connection establishment logic, to test
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diff
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|
1749 #define ACV_ISI_TLS 1 |
| 0 | 1750 |
|
705
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Added standard Result-Code values in header.
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|
1751 /* Error codes from Base protocol |
|
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|
1752 (reference: http://www.iana.org/assignments/aaa-parameters/aaa-parameters.xml#aaa-parameters-4) |
|
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changeset
|
1753 Note that currently, rfc3588bis-26 has some different values for some of these |
|
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|
1754 */ |
|
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|
1755 #define ER_DIAMETER_MULTI_ROUND_AUTH 1001 |
|
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changeset
|
1756 |
|
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|
1757 #define ER_DIAMETER_SUCCESS 2001 |
|
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|
1758 #define ER_DIAMETER_LIMITED_SUCCESS 2002 |
|
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|
1759 |
|
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|
1760 #define ER_DIAMETER_COMMAND_UNSUPPORTED 3001 /* 5019 ? */ |
|
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|
1761 #define ER_DIAMETER_UNABLE_TO_DELIVER 3002 |
|
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|
1762 #define ER_DIAMETER_REALM_NOT_SERVED 3003 |
|
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|
1763 #define ER_DIAMETER_TOO_BUSY 3004 |
|
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|
1764 #define ER_DIAMETER_LOOP_DETECTED 3005 |
|
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|
1765 #define ER_DIAMETER_REDIRECT_INDICATION 3006 |
|
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|
1766 #define ER_DIAMETER_APPLICATION_UNSUPPORTED 3007 |
|
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|
1767 #define ER_DIAMETER_INVALID_HDR_BITS 3008 /* 5020 ? */ |
|
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|
1768 #define ER_DIAMETER_INVALID_AVP_BITS 3009 /* 5021 ? */ |
|
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|
1769 #define ER_DIAMETER_UNKNOWN_PEER 3010 /* 5018 ? */ |
|
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|
1770 |
|
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parents:
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diff
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|
1771 #define ER_DIAMETER_AUTHENTICATION_REJECTED 4001 |
|
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parents:
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|
1772 #define ER_DIAMETER_OUT_OF_SPACE 4002 |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
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changeset
|
1773 #define ER_ELECTION_LOST 4003 |
|
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parents:
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|
1774 |
|
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|
1775 #define ER_DIAMETER_AVP_UNSUPPORTED 5001 |
|
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|
1776 #define ER_DIAMETER_UNKNOWN_SESSION_ID 5002 |
|
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parents:
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|
1777 #define ER_DIAMETER_AUTHORIZATION_REJECTED 5003 |
|
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parents:
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|
1778 #define ER_DIAMETER_INVALID_AVP_VALUE 5004 |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1779 #define ER_DIAMETER_MISSING_AVP 5005 |
|
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Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1780 #define ER_DIAMETER_RESOURCES_EXCEEDED 5006 |
|
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Added standard Result-Code values in header.
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parents:
689
diff
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|
1781 #define ER_DIAMETER_CONTRADICTING_AVPS 5007 |
|
f0cb8f465763
Added standard Result-Code values in header.
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parents:
689
diff
changeset
|
1782 #define ER_DIAMETER_AVP_NOT_ALLOWED 5008 |
|
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Added standard Result-Code values in header.
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parents:
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diff
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|
1783 #define ER_DIAMETER_AVP_OCCURS_TOO_MANY_TIMES 5009 |
|
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Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1784 #define ER_DIAMETER_NO_COMMON_APPLICATION 5010 |
|
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Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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changeset
|
1785 #define ER_DIAMETER_UNSUPPORTED_VERSION 5011 |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1786 #define ER_DIAMETER_UNABLE_TO_COMPLY 5012 |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
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|
1787 #define ER_DIAMETER_INVALID_BIT_IN_HEADER 5013 /* 3011 ? */ |
|
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Added standard Result-Code values in header.
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parents:
689
diff
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|
1788 #define ER_DIAMETER_INVALID_AVP_LENGTH 5014 |
|
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parents:
689
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|
1789 #define ER_DIAMETER_INVALID_MESSAGE_LENGTH 5015 /* 3012 ? */ |
|
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parents:
689
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|
1790 #define ER_DIAMETER_INVALID_AVP_BIT_COMBO 5016 /* deprecated? */ |
|
f0cb8f465763
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parents:
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diff
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|
1791 #define ER_DIAMETER_NO_COMMON_SECURITY 5017 |
| 0 | 1792 |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
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|
1793 |
|
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1794 /*============================================================*/ |
|
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
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|
1795 /* SESSIONS */ |
|
d8ce06172629
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
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|
1796 /*============================================================*/ |
|
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
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|
1797 |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
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2
diff
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|
1798 /* Modules that want to associate a state with a Session-Id must first register a handler of this type */ |
|
ef303f1078ab
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parents:
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diff
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|
1799 struct session_handler; |
|
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parents:
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|
1800 |
|
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diff
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|
1801 /* This opaque structure represents a session associated with a Session-Id */ |
|
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diff
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|
1802 struct session; |
|
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parents:
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diff
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|
1803 |
|
226
406f74f0789b
Few cosmetics changes
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
216
diff
changeset
|
1804 /* The state information that a module associate with a session -- each module defines its own data format */ |
|
3
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diff
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|
1805 typedef void session_state; |
|
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|
1806 |
|
453
9a8b3178a7a7
Postpone the creation of session expiry thread to allow some global variables to be set (debug level, etc)
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340
diff
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|
1807 /* The following function must be called to activate the session expiry mechanism */ |
|
9a8b3178a7a7
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|
1808 int fd_sess_start(void); |
|
9a8b3178a7a7
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|
1809 |
|
3
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|
1810 /* |
|
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|
1811 * FUNCTION: fd_sess_handler_create |
|
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|
1812 * |
|
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|
1813 * PARAMETERS: |
|
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diff
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|
1814 * handler : location where the new handler must be stored. |
|
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|
1815 * cleanup : a callback function that must be called when the session with associated data is destroyed. |
|
639
95a784729cac
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diff
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|
1816 * opaque : A pointer that is passed to the cleanup callback -- the content is never examined by the framework. |
|
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1817 * |
|
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|
1818 * DESCRIPTION: |
|
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|
1819 * Create a new session handler. This is needed by a module to associate a state with a session object. |
|
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|
1820 * The cleanup handler is called when the session timeout expires, or fd_sess_destroy is called. It must free |
|
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|
1821 * the state associated with the session, and eventually trig other actions (send a STR, ...). |
|
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|
1822 * |
|
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|
1823 * RETURN VALUE: |
|
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|
1824 * 0 : The new handler has been created. |
|
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|
1825 * EINVAL : A parameter is invalid. |
|
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|
1826 * ENOMEM : Not enough memory to complete the operation |
|
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|
1827 */ |
|
706
4ffbc9f1e922
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diff
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|
1828 int fd_sess_handler_create_internal ( struct session_handler ** handler, void (*cleanup)(session_state * state, os0_t sid, void * opaque), void * opaque ); |
|
3
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|
1829 /* Macro to avoid casting everywhere */ |
|
639
95a784729cac
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|
1830 #define fd_sess_handler_create( _handler, _cleanup, _opaque ) \ |
|
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|
1831 fd_sess_handler_create_internal( (_handler), (void (*)(session_state *, os0_t, void *))(_cleanup), (void *)(_opaque) ) |
|
3
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|
1832 |
|
340
81821e9f6988
Fix issue on session cleanup callback parameters -- thanks Souheil for reporting.
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336
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changeset
|
1833 |
|
3
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1834 /* |
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1835 * FUNCTION: fd_sess_handler_destroy |
|
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1836 * |
|
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1837 * PARAMETERS: |
|
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1838 * handler : location of an handler created by fd_sess_handler_create. |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
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1839 * opaque : the opaque pointer registered with the callback is restored here (if ! NULL). |
|
3
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1840 * |
|
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1841 * DESCRIPTION: |
|
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1842 * This destroys a session handler (typically called when an application is shutting down). |
|
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1843 * If sessions states are registered with this handler, the cleanup callback is called on them. |
|
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1844 * |
|
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1845 * RETURN VALUE: |
|
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1846 * 0 : The handler was destroyed. |
|
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1847 * EINVAL : A parameter is invalid. |
|
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1848 * ENOMEM : Not enough memory to complete the operation |
|
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1849 */ |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
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1850 int fd_sess_handler_destroy ( struct session_handler ** handler, void **opaque ); |
|
3
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1851 |
|
2
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1852 |
|
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1853 |
|
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1854 /* |
|
3
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1855 * FUNCTION: fd_sess_new |
|
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1856 * |
|
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1857 * PARAMETERS: |
|
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1858 * session : The location where the session object will be created upon success. |
|
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1859 * diamid : a Diameter Identity, or NULL. |
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1860 * diamidlen : if diamid is \0-terminated, this can be 0. Otherwise, the length of diamid. |
| 972 | 1861 * opt : Additional string, or NULL. Usage is described below. |
|
3
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1862 * optlen : if opt is \0-terminated, this can be 0. Otherwise, the length of opt. |
|
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1863 * |
|
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1864 * DESCRIPTION: |
|
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1865 * Create a new session object. The Session-Id string associated with this session is generated as follow: |
|
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1866 * If diamId parameter is provided, the string is created according to the RFC: <diamId>;<high32>;<low32>[;opt] where |
|
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1867 * diamId is a Diameter Identity. |
|
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1868 * high32 and low32 are the parts of a monotonic 64 bits counter initialized to (time, 0) at startup. |
|
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1869 * opt is an optional string that can be concatenated to the identifier. |
|
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1870 * If diamId is NULL, the string is exactly the content of opt. |
|
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1871 * |
|
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1872 * RETURN VALUE: |
|
924
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
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922
diff
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|
1873 * 0 : The session is created, the initial msg refcount is 1. |
|
3
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1874 * EINVAL : A parameter is invalid. |
|
924
877592751fee
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Sebastien Decugis <sdecugis@freediameter.net>
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|
1875 * EALREADY : A session with the same name already exists (returned in *session), the msg refcount is increased. |
|
3
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1876 * ENOMEM : Not enough memory to complete the operation |
|
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1877 */ |
|
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1878 int fd_sess_new ( struct session ** session, DiamId_t diamid, size_t diamidlen, uint8_t * opt, size_t optlen ); |
|
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1879 |
|
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1880 /* |
|
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1881 * FUNCTION: fd_sess_fromsid |
|
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1882 * |
|
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1883 * PARAMETERS: |
|
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1884 * sid : pointer to a string containing a Session-Id (should be UTF-8). |
|
3
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1885 * len : length of the sid string (which does not need to be '\0'-terminated) |
|
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1886 * session : On success, pointer to the session object created / retrieved. |
|
653
34373acfbc6a
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|
1887 * isnew : if not NULL, set to 1 on return if the session object has been created, 0 if it was simply retrieved. |
|
2
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1888 * |
|
3
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1889 * DESCRIPTION: |
|
85
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diff
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|
1890 * Retrieve a session object from a Session-Id string. In case no session object was previously existing with this |
|
3
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1891 * id, a new object is silently created (equivalent to fd_sess_new with flag SESSION_NEW_FULL). |
|
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1892 * |
|
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1893 * RETURN VALUE: |
|
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1894 * 0 : The session parameter has been updated. |
|
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1895 * EINVAL : A parameter is invalid. |
|
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|
1896 * ENOMEM : Not enough memory to complete the operation |
|
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|
1897 */ |
|
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1898 int fd_sess_fromsid ( uint8_t * sid, size_t len, struct session ** session, int * isnew); |
|
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1899 |
|
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1900 /* |
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1901 * FUNCTION: fd_sess_getsid |
|
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1902 * |
|
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1903 * PARAMETERS: |
|
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1904 * session : Pointer to a session object. |
|
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1905 * sid : On success, the location of the sid is stored here. |
|
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1906 * |
|
3
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1907 * DESCRIPTION: |
|
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1908 * Retrieve the session identifier (Session-Id) corresponding to a session object. |
|
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1909 * The returned sid is a \0-terminated binary string which might be UTF-8 (but there is no guarantee in the framework). |
|
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1910 * It may be used for example to set the value of an AVP. |
|
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1911 * Note that the sid string is not copied, just its reference... do not free it! |
|
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1912 * |
|
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1913 * RETURN VALUE: |
|
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1914 * 0 : The sid & len parameters have been updated. |
|
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1915 * EINVAL : A parameter is invalid. |
|
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1916 */ |
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1917 int fd_sess_getsid ( struct session * session, os0_t * sid, size_t * sidlen ); |
|
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1918 |
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1919 /* |
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1920 * FUNCTION: fd_sess_settimeout |
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1921 * |
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1922 * PARAMETERS: |
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1923 * session : The session for which to set the timeout. |
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1924 * timeout : The date when the session times out. |
|
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1925 * |
|
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1926 * DESCRIPTION: |
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1927 * Set the lifetime for a given session object. This function may be |
|
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1928 * called several times on the same object to update the timeout value. |
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1929 * When the timeout date is reached, the cleanup handler of each |
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1930 * module that registered data with this session is called, then the |
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1931 * session is cleared. |
|
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1932 * |
|
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1933 * There is a possible race condition between cleanup of the session |
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1934 * and use of its data; applications should ensure that they are not |
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1935 * using data from a session that is about to expire / expired. |
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1936 * |
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1937 * RETURN VALUE: |
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1938 * 0 : The session timeout has been updated. |
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1939 * EINVAL : A parameter is invalid. |
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1940 */ |
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1941 int fd_sess_settimeout( struct session * session, const struct timespec * timeout ); |
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1942 |
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1943 /* |
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1944 * FUNCTION: fd_sess_destroy |
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1945 * |
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1946 * PARAMETERS: |
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1947 * session : Pointer to a session object. |
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1948 * |
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1949 * DESCRIPTION: |
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1950 * Destroys all associated states of a session, if any. |
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1951 * Equivalent to a session timeout expired, but the effect is immediate. |
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1952 * The session itself is marked as deleted, and will be freed when it is not referenced |
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1953 * by any message anymore. |
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1954 * |
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1955 * RETURN VALUE: |
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1956 * 0 : The session no longer exists. |
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1957 * EINVAL : A parameter is invalid. |
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1958 */ |
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1959 int fd_sess_destroy ( struct session ** session ); |
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1960 |
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1961 /* |
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1962 * FUNCTION: fd_sess_reclaim |
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1963 * |
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1964 * PARAMETERS: |
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1965 * session : Pointer to a session object. |
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1966 * |
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1967 * DESCRIPTION: |
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1968 * Equivalent to fd_sess_destroy, only if no session_state is associated with the session. |
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1969 * Otherwise, this function has no effect (except that it sets *session to NULL). |
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1970 * |
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1971 * RETURN VALUE: |
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1972 * 0 : The session was reclaimed. |
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1973 * EINVAL : A parameter is invalid. |
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1974 */ |
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1975 int fd_sess_reclaim ( struct session ** session ); |
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1976 |
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1977 |
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1978 |
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1979 |
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1980 /* |
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1981 * FUNCTION: fd_sess_state_store |
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1982 * |
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1983 * PARAMETERS: |
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1984 * handler : The handler with which the state is registered. |
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1985 * session : The session object with which the state is registered. |
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1986 * state : An application state (opaque data) to store with the session. |
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1987 * |
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1988 * DESCRIPTION: |
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1989 * Stores an application state with a session. This state can later be retrieved |
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1990 * with fd_sess_state_retrieve, or implicitly in the cleanup handler when the session |
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1991 * is destroyed. |
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1992 * |
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1993 * RETURN VALUE: |
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1994 * 0 : The state has been stored. |
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1995 * EINVAL : A parameter is invalid. |
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1996 * EALREADY : Data was already associated with this session and client. |
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1997 * ENOMEM : Not enough memory to complete the operation |
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1998 */ |
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1999 int fd_sess_state_store_internal ( struct session_handler * handler, struct session * session, session_state ** state ); |
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2000 #define fd_sess_state_store( _handler, _session, _state ) \ |
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2001 fd_sess_state_store_internal( (_handler), (_session), (void *)(_state) ) |
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2002 |
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2003 /* |
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2004 * FUNCTION: fd_sess_state_retrieve |
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2005 * |
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2006 * PARAMETERS: |
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2007 * handler : The handler with which the state was registered. |
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2008 * session : The session object with which the state was registered. |
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2009 * state : Location where the state must be saved if it is found. |
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2010 * |
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2011 * DESCRIPTION: |
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2012 * Retrieves a state saved by fd_sess_state_store. |
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2013 * After this function has been called, the state is no longer associated with |
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2014 * the session. A new call to fd_sess_state_store must be performed in order to |
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2015 * store again the data with the session. |
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2016 * |
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2017 * RETURN VALUE: |
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2018 * 0 : *state is updated (NULL or points to the state if it was found). |
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2019 * EINVAL : A parameter is invalid. |
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2020 */ |
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Removed the OUTPUT specification for SWIG, too complex
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2021 int fd_sess_state_retrieve_internal ( struct session_handler * handler, struct session * session, session_state ** state ); |
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2022 #define fd_sess_state_retrieve( _handler, _session, _state ) \ |
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2023 fd_sess_state_retrieve_internal( (_handler), (_session), (void *)(_state) ) |
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2024 |
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2025 |
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2026 /* For debug */ |
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2027 void fd_sess_dump(int level, struct session * session); |
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2028 void fd_sess_dump_hdl(int level, struct session_handler * handler); |
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2029 |
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778
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Added two new interfaces on Zach requests http://lists.freediameter.net/pipermail/help/2012-January/000312.html and http://lists.freediameter.net/pipermail/help/2012-January/000311.html
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2030 /* For statistics / monitoring: get the number of struct session in memory */ |
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2031 int fd_sess_getcount(uint32_t *cnt); |
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2032 |
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2033 /*============================================================*/ |
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2034 /* ROUTING */ |
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2035 /*============================================================*/ |
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2036 |
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2037 /* The following functions are helpers for the routing module. |
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Completed rt_default extension
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2038 The routing data is stored in the message itself. */ |
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2039 |
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2040 /* Structure that contains the routing data for a message */ |
|
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2041 struct rt_data; |
|
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|
2042 |
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2043 /* Following functions are helpers to create the routing data of a message */ |
|
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2044 int fd_rtd_init(struct rt_data ** rtd); |
|
83
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2045 void fd_rtd_free(struct rt_data ** rtd); |
|
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2046 |
|
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2047 /* Add a peer to the candidates list. */ |
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2048 int fd_rtd_candidate_add(struct rt_data * rtd, DiamId_t peerid, size_t peeridlen, DiamId_t realm, size_t realmlen); |
|
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2049 |
|
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2050 /* Remove a peer from the candidates (if it is found). The search is case-insensitive. */ |
|
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|
2051 void fd_rtd_candidate_del(struct rt_data * rtd, uint8_t * id, size_t idsz); |
|
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2052 |
|
88
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|
2053 /* Extract the list of valid candidates, and initialize their scores to 0 */ |
|
620
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|
2054 void fd_rtd_candidate_extract(struct rt_data * rtd, struct fd_list ** candidates, int ini_score); |
|
88
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2055 |
|
1019
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1014
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|
2056 /* If a peer returned a protocol error for this message, save it so that we don't try to send it there again. Optionally retrieve the current list of candidates. */ |
|
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|
2057 int fd_rtd_error_add(struct rt_data * rtd, DiamId_t sentto, size_t senttolen, uint8_t * origin, size_t originsz, uint32_t rcode, struct fd_list ** candidates, int * sendingattemtps); |
|
83
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2058 |
|
c662d3eb6ff6
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2059 /* The extracted list items have the following structure: */ |
|
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2060 struct rtd_candidate { |
|
1019
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2061 struct fd_list chain; /* link in the list returned by the previous fcts */ |
|
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2062 DiamId_t diamid; /* the diameter Id of the peer */ |
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2063 size_t diamidlen; /* cached size of the diamid string */ |
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2064 DiamId_t realm; /* the diameter realm of the peer */ |
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2065 size_t realmlen; /* cached size of realm */ |
|
83
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2066 int score; /* the current routing score for this peer, see fd_rt_out_register definition for details */ |
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2067 }; |
|
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2068 |
|
706
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|
2069 /* Reorder the list of peers by score */ |
|
83
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2070 int fd_rtd_candidate_reorder(struct fd_list * candidates); |
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2071 |
|
85
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2072 /* Note : it is fine for a callback to add a new entry in the candidates list after the list has been extracted. The diamid must then be malloc'd. */ |
|
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2073 /* Beware that this could lead to routing loops */ |
|
83
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2074 |
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|
2075 /*============================================================*/ |
| 0 | 2076 /* MESSAGES */ |
| 2077 /*============================================================*/ | |
| 2078 | |
| 2079 /* The following types are opaque */ | |
| 2080 struct msg; /* A message: command with children AVPs (possibly grand children) */ | |
| 2081 struct avp; /* AVP object */ | |
| 2082 | |
| 2083 /* Some details about chaining: | |
| 2084 * | |
| 2085 * A message is made of a header ( msg ) and 0 or more AVPs ( avp ). | |
| 2086 * The structure is a kind of tree, where some AVPs (grouped AVPs) can contain other AVPs. | |
| 871 | 2087 * Example: |
| 0 | 2088 * msg |
| 2089 * |-avp | |
| 2090 * |-gavp | |
| 2091 * | |-avp | |
| 2092 * | |-avp | |
| 2093 * | \-avp | |
| 2094 * |-avp | |
| 2095 * \-avp | |
| 2096 * | |
| 2097 */ | |
| 2098 | |
| 2099 /* The following type is used to point to either a msg or an AVP */ | |
| 2100 typedef void msg_or_avp; | |
| 2101 | |
| 2102 /* The Diameter protocol version */ | |
| 2103 #define DIAMETER_VERSION 1 | |
| 2104 | |
| 2105 /* In the two following types, some fields are marked (READONLY). | |
| 2106 * This means that the content of these fields will be overwritten by the daemon so modifying it is useless. | |
| 2107 */ | |
| 2108 | |
| 2109 /* The following structure represents the header of a message. All data is in host byte order. */ | |
| 2110 struct msg_hdr { | |
| 2111 uint8_t msg_version; /* (READONLY) Version of Diameter: must be DIAMETER_VERSION. */ | |
| 2112 uint32_t msg_length; /* (READONLY)(3 bytes) indicates the length of the message */ | |
| 2113 uint8_t msg_flags; /* Message flags: CMD_FLAG_* */ | |
| 2114 command_code_t msg_code; /* (3 bytes) the command-code. See dictionary-api.h for more detail */ | |
| 2115 application_id_t msg_appl; /* The application issuing this message */ | |
| 2116 uint32_t msg_hbhid; /* The Hop-by-Hop identifier of the message */ | |
| 2117 uint32_t msg_eteid; /* The End-to-End identifier of the message */ | |
| 2118 }; | |
| 2119 | |
| 2120 /* The following structure represents the visible content of an AVP. All data is in host byte order. */ | |
| 2121 struct avp_hdr { | |
| 2122 avp_code_t avp_code; /* the AVP Code */ | |
| 2123 uint8_t avp_flags; /* AVP_FLAG_* flags */ | |
| 2124 uint32_t avp_len; /* (READONLY)(Only 3 bytes are used) the length of the AVP as described in the RFC */ | |
| 2125 vendor_id_t avp_vendor; /* Only used if AVP_FLAG_VENDOR is present */ | |
| 2126 union avp_value *avp_value; /* pointer to the value of the AVP. NULL means that the value is not set / not understood. | |
| 2127 One should not directly change this value. Use the msg_avp_setvalue function instead. | |
| 2128 The content of the pointed structure can be changed directly, with this restriction: | |
| 2129 if the AVP is an OctetString, and you change the value of the pointer avp_value->os.data, then | |
| 2130 you must call free() on the previous value, and the new one must be free()-able. | |
| 2131 */ | |
| 2132 }; | |
| 2133 | |
| 2134 /* The following enum is used to browse inside message hierarchy (msg, gavp, avp) */ | |
| 2135 enum msg_brw_dir { | |
| 2136 MSG_BRW_NEXT = 1, /* Get the next element at the same level, or NULL if this is the last element. */ | |
| 2137 MSG_BRW_PREV, /* Get the previous element at the same level, or NULL if this is the first element. */ | |
| 2138 MSG_BRW_FIRST_CHILD, /* Get the first child AVP of this element, if any. */ | |
| 2139 MSG_BRW_LAST_CHILD, /* Get the last child AVP of this element, if any. */ | |
| 2140 MSG_BRW_PARENT, /* Get the parent element of this element, if any. Only the msg_t object has no parent. */ | |
| 2141 MSG_BRW_WALK /* This is equivalent to FIRST_CHILD or NEXT or PARENT->next, first that is not NULL. Use this to walk inside all AVPs. */ | |
| 2142 }; | |
| 2143 | |
| 972 | 2144 /* Some flags used in the functions below */ |
|
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2145 #define AVPFL_SET_BLANK_VALUE 0x01 /* When creating an AVP, initialize its value to a blank area */ |
|
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2146 #define AVPFL_SET_RAWDATA_FROM_AVP 0x02 /* When creating an AVP, initialize its rawdata area from an existing AVP -- it is only blank padding (for error reporting) */ |
|
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2147 #define AVPFL_MAX AVPFL_SET_RAWDATA_FROM_AVP /* The biggest valid flag value */ |
|
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2148 |
| 0 | 2149 #define MSGFL_ALLOC_ETEID 0x01 /* When creating a message, a new end-to-end ID is allocated and set in the message */ |
| 2150 #define MSGFL_ANSW_ERROR 0x02 /* When creating an answer message, set the 'E' bit and use the generic error ABNF instead of command-specific ABNF */ | |
|
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2151 #define MSGFL_ANSW_NOSID 0x04 /* When creating an answer message, do not add the Session-Id even if present in request */ |
|
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2152 #define MSGFL_ANSW_NOPROXYINFO 0x08 /* When creating an answer message, do not add the Proxy-Info AVPs presents in request */ |
|
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2153 #define MSGFL_MAX MSGFL_ANSW_NOPROXYINFO /* The biggest valid flag value */ |
| 0 | 2154 |
| 2155 /**************************************************/ | |
| 2156 /* Message creation, manipulation, disposal */ | |
| 2157 /**************************************************/ | |
| 2158 /* | |
| 2159 * FUNCTION: fd_msg_avp_new | |
| 2160 * | |
| 2161 * PARAMETERS: | |
|
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2162 * model : Pointer to a DICT_AVP dictionary object describing the avp to create, or NULL if flags are used. |
|
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2163 * flags : Flags to use in creation (AVPFL_*, see above). |
|
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2164 * avp : Upon success, pointer to the new avp is stored here. It points to reference AVP upon function call when flags are used. |
| 0 | 2165 * |
| 2166 * DESCRIPTION: | |
| 2167 * Create a new AVP instance. | |
| 2168 * | |
| 2169 * RETURN VALUE: | |
| 2170 * 0 : The AVP is created. | |
| 2171 * EINVAL : A parameter is invalid. | |
| 2172 * (other standard errors may be returned, too, with their standard meaning. Example: | |
| 2173 * ENOMEM : Memory allocation for the new avp failed.) | |
| 2174 */ | |
|
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2175 int fd_msg_avp_new ( struct dict_object * model, int flags, struct avp ** avp ); |
| 0 | 2176 |
| 2177 /* | |
| 2178 * FUNCTION: fd_msg_new | |
| 2179 * | |
| 2180 * PARAMETERS: | |
| 2181 * model : Pointer to a DICT_COMMAND dictionary object describing the message to create, or NULL. | |
| 2182 * flags : combination of MSGFL_* flags. | |
| 2183 * msg : Upon success, pointer to the new message is stored here. | |
| 2184 * | |
| 2185 * DESCRIPTION: | |
| 2186 * Create a new empty Diameter message. | |
| 2187 * | |
| 2188 * RETURN VALUE: | |
| 2189 * 0 : The message is created. | |
| 2190 * EINVAL : A parameter is invalid. | |
| 2191 * (other standard errors may be returned, too, with their standard meaning. Example: | |
| 2192 * ENOMEM : Memory allocation for the new message failed.) | |
| 2193 */ | |
|
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2194 int fd_msg_new ( struct dict_object * model, int flags, struct msg ** msg ); |
| 0 | 2195 |
| 2196 /* | |
| 2197 * FUNCTION: msg_new_answer_from_req | |
| 2198 * | |
| 2199 * PARAMETERS: | |
| 2200 * dict : Pointer to the dictionary containing the model of the query. | |
| 2201 * msg : The location of the query on function call. Updated by the location of answer message on return. | |
| 2202 * flag : Pass MSGFL_ANSW_ERROR to indicate if the answer is an error message (will set the 'E' bit) | |
|
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2203 * : See other MSGFL_ANSW_* definition above for other flags. |
| 0 | 2204 * |
| 2205 * DESCRIPTION: | |
| 2206 * This function creates the empty answer message corresponding to a request. | |
| 2207 * The header is set properly (R flag, ccode, appid, hbhid, eteid) | |
| 2208 * The Session-Id AVP is copied if present. | |
| 2209 * The calling code should usually call fd_msg_rescode_set function on the answer. | |
| 2210 * Upon return, the original query may be retrieved by calling fd_msg_answ_getq on the message. | |
| 2211 * | |
| 2212 * RETURN VALUE: | |
| 2213 * 0 : Operation complete. | |
| 2214 * !0 : an error occurred. | |
| 2215 */ | |
|
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2216 int fd_msg_new_answer_from_req ( struct dictionary * dict, struct msg ** msg, int flag ); |
| 0 | 2217 |
| 2218 /* | |
| 2219 * FUNCTION: fd_msg_browse | |
| 2220 * | |
| 2221 * PARAMETERS: | |
| 2222 * reference : Pointer to a struct msg or struct avp. | |
| 2223 * dir : Direction for browsing | |
| 2224 * found : If not NULL, updated with the element that has been found, if any, or NULL if no element was found / an error occurred. | |
| 2225 * depth : If not NULL, points to an integer representing the "depth" of this object in the tree. This is a relative value, updated on return. | |
| 2226 * | |
| 2227 * DESCRIPTION: | |
| 2228 * Explore the content of a message object (hierarchy). If "found" is null, only error checking is performed. | |
| 2229 * If "depth" is provided, it is updated as follow on successful function return: | |
| 2230 * - not modified for MSG_BRW_NEXT and MSG_BRW_PREV. | |
| 2231 * - *depth = *depth + 1 for MSG_BRW_FIRST_CHILD and MSG_BRW_LAST_CHILD. | |
| 2232 * - *depth = *depth - 1 for MSG_BRW_PARENT. | |
| 2233 * - *depth = *depth + X for MSG_BRW_WALK, with X between 1 (returned the 1st child) and -N (returned the Nth parent's next). | |
| 2234 * | |
| 2235 * RETURN VALUE: | |
| 2236 * 0 : found has been updated (if non NULL). | |
| 2237 * EINVAL : A parameter is invalid. | |
| 2238 * ENOENT : No element has been found where requested, and "found" was NULL (otherwise, *found is set to NULL and 0 is returned). | |
| 2239 */ | |
|
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2240 int fd_msg_browse_internal ( msg_or_avp * reference, enum msg_brw_dir dir, msg_or_avp ** found, int * depth ); |
| 0 | 2241 /* Macro to avoid having to cast the third parameter everywhere */ |
| 2242 #define fd_msg_browse( ref, dir, found, depth ) \ | |
| 2243 fd_msg_browse_internal( (ref), (dir), (void *)(found), (depth) ) | |
| 2244 | |
| 2245 | |
| 2246 /* | |
| 2247 * FUNCTION: fd_msg_avp_add | |
| 2248 * | |
| 2249 * PARAMETERS: | |
| 2250 * reference : Pointer to a valid msg or avp. | |
| 2251 * dir : location where the new AVP should be inserted, relative to the reference. MSG_BRW_PARENT and MSG_BRW_WALK are not valid. | |
| 2252 * avp : pointer to the AVP object that must be inserted. | |
| 2253 * | |
| 2254 * DESCRIPTION: | |
| 2255 * Adds an AVP into an object that can contain it: grouped AVP or message. | |
|
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2256 * Note that the added AVP will be freed at the same time as the object it is added to, |
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2257 * so it should not be freed after the call to this function. |
| 0 | 2258 * |
| 2259 * RETURN VALUE: | |
| 2260 * 0 : The AVP has been added. | |
| 2261 * EINVAL : A parameter is invalid. | |
| 2262 */ | |
| 2263 int fd_msg_avp_add ( msg_or_avp * reference, enum msg_brw_dir dir, struct avp *avp); | |
| 2264 | |
| 2265 /* | |
| 2266 * FUNCTION: fd_msg_search_avp | |
| 2267 * | |
| 2268 * PARAMETERS: | |
| 2269 * msg : The message structure in which to search the AVP. | |
| 2270 * what : The dictionary model of the AVP to search. | |
| 2271 * avp : location where the AVP reference is stored if found. | |
| 2272 * | |
| 2273 * DESCRIPTION: | |
| 2274 * Search the first top-level AVP of a given model inside a message. | |
| 2275 * Note: only the first instance of the AVP is returned by this function. | |
| 2276 * Note: only top-level AVPs are searched, not inside grouped AVPs. | |
| 2277 * Use msg_browse if you need more advanced research features. | |
| 2278 * | |
| 2279 * RETURN VALUE: | |
| 2280 * 0 : The AVP has been found. | |
| 2281 * EINVAL : A parameter is invalid. | |
| 2282 * ENOENT : No AVP has been found, and "avp" was NULL (otherwise, *avp is set to NULL and 0 returned). | |
| 2283 */ | |
|
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|
2284 int fd_msg_search_avp ( struct msg * msg, struct dict_object * what, struct avp ** avp ); |
| 0 | 2285 |
| 2286 /* | |
| 2287 * FUNCTION: fd_msg_free | |
| 2288 * | |
| 2289 * PARAMETERS: | |
| 2290 * object : pointer to the message or AVP object that must be unlinked and freed. | |
| 2291 * | |
| 2292 * DESCRIPTION: | |
| 2293 * Unlink and free a message or AVP object and its children. | |
| 2294 * If the object is an AVP linked into a message, the AVP is removed before being freed. | |
| 2295 * | |
| 2296 * RETURN VALUE: | |
| 2297 * 0 : The message has been freed. | |
| 2298 * EINVAL : A parameter is invalid. | |
| 2299 */ | |
| 2300 int fd_msg_free ( msg_or_avp * object ); | |
| 2301 | |
| 2302 /***************************************/ | |
| 2303 /* Dump functions */ | |
| 2304 /***************************************/ | |
| 2305 /* | |
| 2306 * FUNCTION: fd_msg_dump_* | |
| 2307 * | |
| 2308 * PARAMETERS: | |
| 2309 * level : the log level (INFO, FULL, ...) at which the object is dumped | |
| 2310 * obj : A msg or avp object. | |
| 2311 * | |
| 2312 * DESCRIPTION: | |
| 2313 * These functions dump the content of a message to the debug log | |
| 2314 * either recursively or only the object itself. | |
| 2315 * | |
| 2316 * RETURN VALUE: | |
| 2317 * - | |
| 2318 */ | |
| 2319 void fd_msg_dump_walk ( int level, msg_or_avp *obj ); | |
| 2320 void fd_msg_dump_one ( int level, msg_or_avp *obj ); | |
| 2321 | |
|
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|
2322 /* |
|
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|
2323 * FUNCTION: fd_msg_log |
|
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diff
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2324 * |
|
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2325 * PARAMETERS: |
|
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|
2326 * cause : Context for calling this function. This allows the log facility to be configured precisely. |
|
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diff
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|
2327 * msg : The message to log. |
|
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|
2328 * prefix_format: Printf-style format message that is printed ahead of the message. Might be reason for drop or so. |
|
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|
2329 * |
|
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2330 * DESCRIPTION: |
|
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2331 * This function is called when a Diameter message reaches some particular points in the fD framework. |
|
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2332 * The actual effect is configurable: log in a separate file, dump in the debug log, etc. |
|
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|
2333 * |
|
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|
2334 * RETURN VALUE: |
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|
2335 * - |
|
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|
2336 */ |
|
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|
2337 enum fd_msg_log_cause { |
|
899
40d5e8002b12
Disable all logs by default, activate required logs by command-line switch. To be improved when file logging is supported
Sebastien Decugis <sdecugis@freediameter.net>
parents:
898
diff
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|
2338 FD_MSG_LOG_DROPPED = 1, /* message has been dropped by the framework */ |
|
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|
2339 FD_MSG_LOG_RECEIVED, /* message received from the network */ |
|
688
8c3dc8584dab
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diff
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|
2340 FD_MSG_LOG_SENT, /* message sent to another peer */ |
|
895
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diff
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|
2341 FD_MSG_LOG_NODELIVER, /* message could not be delivered to any peer */ |
|
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diff
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|
2342 FD_MSG_LOG_TIMING /* profiling messages */ |
|
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2343 }; |
|
895
fbf77629cb7b
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parents:
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diff
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|
2344 #define FD_MSG_LOG_MAX FD_MSG_LOG_TIMING |
|
1027
0117a7746b21
Fix a number of errors and warnings introduced/highlighted by recent commits
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1026
diff
changeset
|
2345 void fd_msg_log( enum fd_msg_log_cause cause, struct msg * msg, const char * prefix_format, ... ) _ATTRIBUTE_PRINTFLIKE_(3,4); |
|
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|
2346 |
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|
2347 /* configure the msg_log facility */ |
|
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diff
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|
2348 enum fd_msg_log_method { |
|
898
c2ecce3fb928
Add a NONE option for fd_msg_log to disable the trace
Sebastien Decugis <sdecugis@freediameter.net>
parents:
897
diff
changeset
|
2349 FD_MSG_LOGTO_NONE = 0, /* The message is not dumped. This is the default. */ |
|
c2ecce3fb928
Add a NONE option for fd_msg_log to disable the trace
Sebastien Decugis <sdecugis@freediameter.net>
parents:
897
diff
changeset
|
2350 FD_MSG_LOGTO_DEBUGONLY, /* Simply log the message with other debug information, at the INFO level. */ |
|
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diff
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|
2351 FD_MSG_LOGTO_FILE, /* Messages are dumped in a single file, defined in arg */ |
|
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diff
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|
2352 FD_MSG_LOGTO_DIR /* Messages are dumped in different files within one directory defined in arg. */ |
|
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|
2353 }; |
|
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parents:
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diff
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|
2354 int fd_msg_log_config(enum fd_msg_log_cause cause, enum fd_msg_log_method method, const char * arg); |
|
689
933d098fc75d
Cleanups in msg_log feature
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
688
diff
changeset
|
2355 void fd_msg_log_init(struct dictionary *dict); |
| 0 | 2356 |
| 2357 /*********************************************/ | |
| 2358 /* Message metadata management functions */ | |
| 2359 /*********************************************/ | |
| 2360 /* | |
| 2361 * FUNCTION: fd_msg_model | |
| 2362 * | |
| 2363 * PARAMETERS: | |
| 2364 * reference : Pointer to a valid msg or avp. | |
| 2365 * model : on success, pointer to the dictionary model of this command or AVP. NULL if the model is unknown. | |
| 2366 * | |
| 2367 * DESCRIPTION: | |
| 2368 * Retrieve the dictionary object describing this message or avp. If the object is unknown or the fd_msg_parse_dict has not been called, | |
| 2369 * *model is set to NULL. | |
| 2370 * | |
| 2371 * RETURN VALUE: | |
| 2372 * 0 : The model has been set. | |
| 2373 * EINVAL : A parameter is invalid. | |
| 2374 */ | |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2375 int fd_msg_model ( msg_or_avp * reference, struct dict_object ** model ); |
| 0 | 2376 |
| 2377 /* | |
| 2378 * FUNCTION: fd_msg_hdr | |
| 2379 * | |
| 2380 * PARAMETERS: | |
| 2381 * msg : Pointer to a valid message object. | |
| 2382 * pdata : Upon success, pointer to the msg_hdr structure of this message. The fields may be modified. | |
| 2383 * | |
| 2384 * DESCRIPTION: | |
| 2385 * Retrieve location of modifiable section of a message. | |
| 2386 * | |
| 2387 * RETURN VALUE: | |
| 2388 * 0 : The location has been written. | |
| 2389 * EINVAL : A parameter is invalid. | |
| 2390 */ | |
|
620
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parents:
618
diff
changeset
|
2391 int fd_msg_hdr ( struct msg *msg, struct msg_hdr ** pdata ); |
| 0 | 2392 |
| 2393 /* | |
| 2394 * FUNCTION: fd_msg_avp_hdr | |
| 2395 * | |
| 2396 * PARAMETERS: | |
| 2397 * avp : Pointer to a valid avp object. | |
| 2398 * pdata : Upon success, pointer to the avp_hdr structure of this avp. The fields may be modified. | |
| 2399 * | |
| 2400 * DESCRIPTION: | |
| 2401 * Retrieve location of modifiable data of an avp. | |
| 2402 * | |
| 2403 * RETURN VALUE: | |
| 2404 * 0 : The location has been written. | |
| 2405 * EINVAL : A parameter is invalid. | |
| 2406 */ | |
|
620
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parents:
618
diff
changeset
|
2407 int fd_msg_avp_hdr ( struct avp *avp, struct avp_hdr ** pdata ); |
| 0 | 2408 |
| 2409 /* | |
| 2410 * FUNCTION: fd_msg_answ_associate, fd_msg_answ_getq, fd_msg_answ_detach | |
| 2411 * | |
| 2412 * PARAMETERS: | |
| 2413 * answer : the received answer message | |
| 2414 * query : the corresponding query that had been sent | |
| 2415 * | |
| 2416 * DESCRIPTION: | |
| 2417 * fd_msg_answ_associate associates a query msg with the received answer. | |
| 2418 * Query is retrieved with fd_msg_answ_getq. | |
| 2419 * If answer message is freed, the query is also freed. | |
| 2420 * If the msg_answ_detach function is called, the association is removed. | |
| 2421 * This is meant to be called from the daemon only. | |
| 2422 * | |
| 2423 * RETURN VALUE: | |
| 2424 * 0 : ok | |
| 2425 * EINVAL: a parameter is invalid | |
| 2426 */ | |
| 2427 int fd_msg_answ_associate( struct msg * answer, struct msg * query ); | |
|
620
bc7328e600f0
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2428 int fd_msg_answ_getq ( struct msg * answer, struct msg ** query ); |
| 0 | 2429 int fd_msg_answ_detach ( struct msg * answer ); |
| 2430 | |
| 2431 /* | |
| 2432 * FUNCTION: fd_msg_anscb_associate, fd_msg_anscb_get | |
| 2433 * | |
| 2434 * PARAMETERS: | |
|
1014
908ffbb81f60
Added a second callback in fd_msg_send_timeout to handle more easily the timeout situation
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1004
diff
changeset
|
2435 * msg : the request message |
| 0 | 2436 * anscb : the callback to associate with the message |
| 2437 * data : the data to pass to the callback | |
|
1014
908ffbb81f60
Added a second callback in fd_msg_send_timeout to handle more easily the timeout situation
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1004
diff
changeset
|
2438 * expirecb : the expiration callback to associate with the message |
|
646
cfc8da9264f4
Prepared first part of the changes for #10
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
639
diff
changeset
|
2439 * timeout : (optional, use NULL if no timeout) a timeout associated with calling the cb. |
| 0 | 2440 * |
| 2441 * DESCRIPTION: | |
|
1014
908ffbb81f60
Added a second callback in fd_msg_send_timeout to handle more easily the timeout situation
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parents:
1004
diff
changeset
|
2442 * Associate or retrieve callbacks with an message. |
| 0 | 2443 * This is meant to be called from the daemon only. |
| 2444 * | |
| 2445 * RETURN VALUE: | |
| 2446 * 0 : ok | |
| 2447 * EINVAL: a parameter is invalid | |
| 2448 */ | |
|
1014
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Added a second callback in fd_msg_send_timeout to handle more easily the timeout situation
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1004
diff
changeset
|
2449 int fd_msg_anscb_associate( struct msg * msg, void ( *anscb)(void *, struct msg **), void * data, void (*expirecb)(void *, DiamId_t, size_t, struct msg **), const struct timespec *timeout ); |
|
908ffbb81f60
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parents:
1004
diff
changeset
|
2450 int fd_msg_anscb_get( struct msg * msg, void (**anscb)(void *, struct msg **), void (**expirecb)(void *, DiamId_t, size_t, struct msg **), void ** data ); |
|
649
5e5d8152c229
Implemented fd_msg_send_timeout to close #10. Not tested yet.
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parents:
648
diff
changeset
|
2451 struct timespec *fd_msg_anscb_gettimeout( struct msg * msg ); /* returns NULL or a valid non-0 timespec */ |
| 0 | 2452 |
| 2453 /* | |
| 2454 * FUNCTION: fd_msg_rt_associate, fd_msg_rt_get | |
| 2455 * | |
| 2456 * PARAMETERS: | |
| 2457 * msg : the query message to be sent | |
| 2458 * list : the ordered list of possible next-peers | |
| 2459 * | |
| 2460 * DESCRIPTION: | |
| 2461 * Associate a routing list with a query, and retrieve it. | |
| 2462 * If the message is freed, the list is also freed. | |
| 2463 * | |
| 2464 * RETURN VALUE: | |
| 2465 * 0 : ok | |
| 2466 * EINVAL: a parameter is invalid | |
| 2467 */ | |
|
83
c662d3eb6ff6
Started support for routing module
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parents:
43
diff
changeset
|
2468 int fd_msg_rt_associate( struct msg * msg, struct rt_data ** rtd ); |
|
620
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parents:
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diff
changeset
|
2469 int fd_msg_rt_get ( struct msg * msg, struct rt_data ** rtd ); |
| 0 | 2470 |
| 2471 /* | |
| 2472 * FUNCTION: fd_msg_is_routable | |
| 2473 * | |
| 2474 * PARAMETERS: | |
| 2475 * msg : A msg object. | |
| 2476 * | |
| 2477 * DESCRIPTION: | |
| 2478 * This function returns a boolean telling if a given message is routable in the Diameter network, | |
| 2479 * or if it is a local link message only (ex: CER/CEA, DWR/DWA, ...). | |
| 2480 * | |
| 2481 * RETURN VALUE: | |
| 2482 * 0 : The message is not routable / an error occurred. | |
| 2483 * 1 : The message is routable. | |
| 2484 */ | |
| 2485 int fd_msg_is_routable ( struct msg * msg ); | |
| 2486 | |
| 2487 /* | |
| 2488 * FUNCTION: fd_msg_source_(g/s)et | |
| 2489 * | |
| 2490 * PARAMETERS: | |
| 2491 * msg : A msg object. | |
|
706
4ffbc9f1e922
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parents:
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diff
changeset
|
2492 * diamid,len : The diameter id of the peer from which this message was received. |
| 0 | 2493 * add_rr : if true, a Route-Record AVP is added to the message with content diamid. In that case, dict must be supplied. |
| 2494 * dict : a dictionary with definition of Route-Record AVP (if add_rr is true) | |
| 2495 * | |
| 2496 * DESCRIPTION: | |
| 2497 * Store or retrieve the diameted id of the peer from which this message was received. | |
| 2498 * Will be used for example by the routing module to add the Route-Record AVP in forwarded requests, | |
| 2499 * or to direct answers to the appropriate peer. | |
| 2500 * | |
| 2501 * RETURN VALUE: | |
| 2502 * 0 : Operation complete. | |
| 2503 * !0 : an error occurred. | |
| 2504 */ | |
|
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|
2505 int fd_msg_source_set( struct msg * msg, DiamId_t diamid, size_t diamidlen, int add_rr, struct dictionary * dict ); |
|
4ffbc9f1e922
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|
2506 int fd_msg_source_get( struct msg * msg, DiamId_t *diamid, size_t * diamidlen ); |
| 0 | 2507 |
| 2508 /* | |
|
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diff
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|
2509 * FUNCTION: fd_msg_ts_* |
|
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diff
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|
2510 * |
|
fbf77629cb7b
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diff
changeset
|
2511 * PARAMETERS: |
|
fbf77629cb7b
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diff
changeset
|
2512 * msg : A msg object. |
|
fbf77629cb7b
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diff
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|
2513 * ts : A struct timespec pointer, indexed on CLOCK_REALTIME |
|
fbf77629cb7b
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diff
changeset
|
2514 * |
|
fbf77629cb7b
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diff
changeset
|
2515 * DESCRIPTION: |
|
fbf77629cb7b
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diff
changeset
|
2516 * Associate or retrieve timestamps meaningful for the message. |
|
fbf77629cb7b
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parents:
894
diff
changeset
|
2517 * A timestamp with a value of { 0, 0 } means: not set. |
|
fbf77629cb7b
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diff
changeset
|
2518 * |
|
fbf77629cb7b
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Sebastien Decugis <sdecugis@freediameter.net>
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diff
changeset
|
2519 * RETURN VALUE: |
|
fbf77629cb7b
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diff
changeset
|
2520 * 0 : Operation complete. |
|
fbf77629cb7b
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Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
2521 * !0 : an error occurred. |
|
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
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|
2522 */ |
|
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
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parents:
894
diff
changeset
|
2523 /* when msg was received from network */ |
|
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
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diff
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|
2524 int fd_msg_ts_set_recv( struct msg * msg, struct timespec * ts ); |
|
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
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diff
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|
2525 int fd_msg_ts_get_recv( struct msg * msg, struct timespec * ts ); |
|
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Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
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diff
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|
2526 int fd_msg_ts_set_sent( struct msg * msg, struct timespec * ts ); |
|
fbf77629cb7b
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Sebastien Decugis <sdecugis@freediameter.net>
parents:
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diff
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|
2527 int fd_msg_ts_get_sent( struct msg * msg, struct timespec * ts ); |
|
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
2528 |
|
fbf77629cb7b
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Sebastien Decugis <sdecugis@freediameter.net>
parents:
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diff
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|
2529 |
|
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
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diff
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|
2530 /* |
| 0 | 2531 * FUNCTION: fd_msg_eteid_get |
| 2532 * | |
| 2533 * PARAMETERS: | |
| 2534 * - | |
| 2535 * | |
| 2536 * DESCRIPTION: | |
| 2537 * Get a new unique end-to-end id value for the local peer. | |
| 2538 * | |
| 2539 * RETURN VALUE: | |
| 2540 * The new assigned value. No error code is defined. | |
| 2541 */ | |
| 2542 uint32_t fd_msg_eteid_get ( void ); | |
| 2543 | |
| 2544 | |
|
85
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Sebastien Decugis <sdecugis@nict.go.jp>
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83
diff
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|
2545 /* |
|
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diff
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|
2546 * FUNCTION: fd_msg_sess_get |
|
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
2547 * |
|
e5fcd672caff
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diff
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|
2548 * PARAMETERS: |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
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83
diff
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|
2549 * dict : the dictionary that contains the Session-Id AVP definition |
|
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
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|
2550 * msg : A valid message. |
|
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
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|
2551 * session : Location to store the session pointer when retrieved. |
|
653
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
diff
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|
2552 * isnew : Indicates if the session has been created. |
|
85
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Sebastien Decugis <sdecugis@nict.go.jp>
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|
2553 * |
|
e5fcd672caff
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parents:
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diff
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|
2554 * DESCRIPTION: |
|
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
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83
diff
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|
2555 * This function retrieves or creates the session object corresponding to a message. |
|
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
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|
2556 * If the message does not contain a Session-Id AVP, *session == NULL on return. |
|
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
2557 * Note that the Session-Id AVP must never be modified after created in a message. |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
2558 * |
|
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|
2559 * RETURN VALUE: |
|
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
2560 * 0 : success |
|
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
2561 * !0 : standard error code. |
|
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
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|
2562 */ |
|
653
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
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|
2563 int fd_msg_sess_get(struct dictionary * dict, struct msg * msg, struct session ** session, int * isnew); |
|
85
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Sebastien Decugis <sdecugis@nict.go.jp>
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|
2564 |
|
924
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
Sebastien Decugis <sdecugis@freediameter.net>
parents:
922
diff
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|
2565 /* This one is used by the libfdcore, you should use fd_msg_new_session rather than fd_sess_new, when possible */ |
|
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
Sebastien Decugis <sdecugis@freediameter.net>
parents:
922
diff
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|
2566 int fd_msg_sess_set(struct msg * msg, struct session * session); |
|
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
Sebastien Decugis <sdecugis@freediameter.net>
parents:
922
diff
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|
2567 |
|
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
Sebastien Decugis <sdecugis@freediameter.net>
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922
diff
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|
2568 |
| 0 | 2569 /***************************************/ |
| 2570 /* Manage AVP values */ | |
| 2571 /***************************************/ | |
| 2572 | |
| 2573 /* | |
| 2574 * FUNCTION: fd_msg_avp_setvalue | |
| 2575 * | |
| 2576 * PARAMETERS: | |
| 2577 * avp : Pointer to a valid avp object with a NULL avp_value pointer. The model must be known. | |
| 2578 * value : pointer to an avp_value. The content will be COPIED into the internal storage area. | |
| 2579 * If data type is an octetstring, the data is also copied. | |
| 2580 * If value is a NULL pointer, the previous data is erased and value is unset in the AVP. | |
| 2581 * | |
| 2582 * DESCRIPTION: | |
| 2583 * Initialize the avp_value field of an AVP header. | |
| 2584 * | |
| 2585 * RETURN VALUE: | |
| 2586 * 0 : The avp_value pointer has been set. | |
| 2587 * EINVAL : A parameter is invalid. | |
| 2588 */ | |
| 2589 int fd_msg_avp_setvalue ( struct avp *avp, union avp_value *value ); | |
| 2590 | |
| 2591 /* | |
| 2592 * FUNCTION: fd_msg_avp_value_encode | |
| 2593 * | |
| 2594 * PARAMETERS: | |
| 2595 * avp : Pointer to a valid avp object with a NULL avp_value. The model must be known. | |
| 2596 * data : Pointer to the data that must be encoded as AVP value and stored in the AVP. | |
| 2597 * This is only valid for AVPs of derived type for which type_data_encode callback is set. (ex: Address type) | |
| 2598 * | |
| 2599 * DESCRIPTION: | |
| 2600 * Initialize the avp_value field of an AVP object from formatted data, using the AVP's type "type_data_encode" callback. | |
| 2601 * | |
| 2602 * RETURN VALUE: | |
| 2603 * 0 : The avp_value has been set. | |
| 2604 * EINVAL : A parameter is invalid. | |
| 2605 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
| 2606 */ | |
| 2607 int fd_msg_avp_value_encode ( void *data, struct avp *avp ); | |
| 2608 /* | |
| 2609 * FUNCTION: fd_msg_avp_value_interpret | |
| 2610 * | |
| 2611 * PARAMETERS: | |
| 2612 * avp : Pointer to a valid avp object with a non-NULL avp_value value. | |
| 2613 * data : Upon success, formatted interpretation of the AVP value is stored here. | |
| 2614 * | |
| 2615 * DESCRIPTION: | |
| 2616 * Interpret the content of an AVP of Derived type and store the result in data pointer. The structure | |
| 2617 * of the data pointer is dependent on the AVP type. This function calls the "type_data_interpret" callback | |
| 2618 * of the type. | |
| 2619 * | |
| 2620 * RETURN VALUE: | |
| 2621 * 0 : The avp_value has been set. | |
| 2622 * EINVAL : A parameter is invalid. | |
| 2623 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
| 2624 */ | |
| 2625 int fd_msg_avp_value_interpret ( struct avp *avp, void *data ); | |
| 2626 | |
| 2627 | |
| 2628 /***************************************/ | |
| 2629 /* Message parsing functions */ | |
| 2630 /***************************************/ | |
| 2631 | |
| 2632 /* | |
| 2633 * FUNCTION: fd_msg_bufferize | |
| 2634 * | |
| 2635 * PARAMETERS: | |
| 2636 * msg : A valid msg object. All AVPs must have a value set. | |
| 2637 * buffer : Upon success, this points to a buffer (malloc'd) containing the message ready for network transmission (or security transformations). | |
| 2638 * The buffer may be freed after use. | |
| 2639 * len : if not NULL, the size of the buffer is written here. In any case, this size is updated in the msg header. | |
| 2640 * | |
| 2641 * DESCRIPTION: | |
| 2642 * Renders a message in memory as a buffer that can be sent over the network to the next peer. | |
| 2643 * | |
| 2644 * RETURN VALUE: | |
| 2645 * 0 : The location has been written. | |
| 2646 * EINVAL : The buffer does not contain a valid Diameter message. | |
| 2647 * ENOMEM : Unable to allocate enough memory to create the buffer object. | |
| 2648 */ | |
|
706
4ffbc9f1e922
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2649 int fd_msg_bufferize ( struct msg * msg, uint8_t ** buffer, size_t * len ); |
| 0 | 2650 |
| 2651 /* | |
| 2652 * FUNCTION: fd_msg_parse_buffer | |
| 2653 * | |
| 2654 * PARAMETERS: | |
| 2655 * buffer : Pointer to a buffer containing a message received from the network. | |
| 2656 * buflen : the size in bytes of the buffer. | |
| 2657 * msg : Upon success, this points to a valid msg object. No AVP value is resolved in this object, nor grouped AVP. | |
| 2658 * | |
| 2659 * DESCRIPTION: | |
| 2660 * This function parses a buffer an creates a msg object to represent the structure of the message. | |
| 2661 * Since no dictionary lookup is performed, the values of the AVPs are not interpreted. To interpret the values, | |
| 2662 * the returned message object must be passed to fd_msg_parse_dict function. | |
| 2663 * The buffer pointer is saved inside the message and will be freed when not needed anymore. | |
| 2664 * | |
| 2665 * RETURN VALUE: | |
| 2666 * 0 : The location has been written. | |
| 2667 * ENOMEM : Unable to allocate enough memory to create the msg object. | |
| 2668 * EBADMSG : The buffer does not contain a valid Diameter message (or is truncated). | |
| 2669 * EINVAL : A parameter is invalid. | |
| 2670 */ | |
|
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parents:
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diff
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|
2671 int fd_msg_parse_buffer ( uint8_t ** buffer, size_t buflen, struct msg ** msg ); |
| 0 | 2672 |
|
114
5b3868944e2b
Reporting errors in parse_dict function
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
112
diff
changeset
|
2673 /* Parsing Error Information structure */ |
|
5b3868944e2b
Reporting errors in parse_dict function
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
112
diff
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|
2674 struct fd_pei { |
|
5b3868944e2b
Reporting errors in parse_dict function
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
112
diff
changeset
|
2675 char * pei_errcode; /* name of the error code to use */ |
|
891
9432ac55823c
Tentative fix for the parse_or_error function
Sebastien Decugis <sdecugis@freediameter.net>
parents:
871
diff
changeset
|
2676 struct avp * pei_avp; /* pointer to invalid (in original message) or missing AVP (to be freed) */ |
|
114
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Reporting errors in parse_dict function
Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
2677 char * pei_message; /* Overwrite default message if needed */ |
|
5b3868944e2b
Reporting errors in parse_dict function
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
112
diff
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|
2678 int pei_protoerr; /* do we set the 'E' bit in the error message ? */ |
|
5b3868944e2b
Reporting errors in parse_dict function
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|
2679 }; |
|
5b3868944e2b
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diff
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|
2680 |
| 0 | 2681 /* |
| 2682 * FUNCTION: fd_msg_parse_dict | |
| 2683 * | |
| 2684 * PARAMETERS: | |
| 2685 * object : A msg or AVP object as returned by fd_msg_parse_buffer. | |
| 2686 * dict : the dictionary containing the objects definitions to use for resolving all AVPs. | |
|
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|
2687 * error_info : If not NULL, will contain the detail about error upon return. May be used to generate an error reply. |
| 0 | 2688 * |
| 2689 * DESCRIPTION: | |
| 2690 * This function looks up for the command and each children AVP definitions in the dictionary. | |
| 2691 * If the dictionary definition is found, avp_model is set and the value of the AVP is interpreted accordingly and: | |
| 2692 * - for grouped AVPs, the children AVP are created and interpreted also. | |
| 2693 * - for numerical AVPs, the value is converted to host byte order and saved in the avp_value field. | |
| 2694 * - for octetstring AVPs, the string is copied into a new buffer and its address is saved in avp_value. | |
| 2695 * If the dictionary definition is not found, avp_model is set to NULL and | |
| 2696 * the content of the AVP is saved as an octetstring in an internal structure. avp_value is NULL. | |
|
637
22e8fac3b2d6
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Sebastien Decugis <sdecugis@nict.go.jp>
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621
diff
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|
2697 * As a result, after this function has been called, there is no more dependency of the msg object to the message buffer, that is freed. |
| 0 | 2698 * |
| 2699 * RETURN VALUE: | |
| 2700 * 0 : The message has been fully parsed as described. | |
| 2701 * EINVAL : The msg parameter is invalid for this operation. | |
| 2702 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
| 2703 * ENOTSUP : No dictionary definition for the command or one of the mandatory AVP was found. | |
| 2704 */ | |
|
620
bc7328e600f0
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|
2705 int fd_msg_parse_dict ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info ); |
|
34
0e2b57789361
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|
2706 |
| 0 | 2707 /* |
| 2708 * FUNCTION: fd_msg_parse_rules | |
| 2709 * | |
| 2710 * PARAMETERS: | |
| 2711 * object : A msg or grouped avp object that must be verified. | |
| 2712 * dict : The dictionary containing the rules definitions. | |
|
34
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diff
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|
2713 * error_info : If not NULL, the first problem information will be saved here. |
| 0 | 2714 * |
| 2715 * DESCRIPTION: | |
| 2716 * Check that the children of the object do not conflict with the dictionary rules (ABNF compliance). | |
| 2717 * | |
| 2718 * RETURN VALUE: | |
| 2719 * 0 : The message has been fully parsed and complies to the defined rules. | |
| 2720 * EBADMSG : A conflict was detected, or a mandatory AVP is unknown in the dictionary. | |
| 2721 * EINVAL : The msg or avp object is invalid for this operation. | |
| 2722 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
| 2723 */ | |
|
620
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|
2724 int fd_msg_parse_rules ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info); |
|
34
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|
2725 |
| 0 | 2726 |
| 2727 | |
| 2728 /* | |
| 2729 * FUNCTION: fd_msg_update_length | |
| 2730 * | |
| 2731 * PARAMETERS: | |
| 2732 * object : Pointer to a valid msg or avp. | |
| 2733 * | |
| 2734 * DESCRIPTION: | |
| 2735 * Update the length field of the object passed as parameter. | |
| 2736 * As a side effect, all children objects are also updated. Therefore, all avp_value fields of | |
| 2737 * the children AVPs must be set, or an error will occur. | |
| 2738 * | |
| 2739 * RETURN VALUE: | |
| 2740 * 0 : The size has been recomputed. | |
| 2741 * EINVAL : A parameter is invalid. | |
| 2742 */ | |
| 2743 int fd_msg_update_length ( msg_or_avp * object ); | |
| 2744 | |
| 2745 | |
|
7
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|
2746 /*============================================================*/ |
|
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|
2747 /* DISPATCH */ |
|
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2748 /*============================================================*/ |
|
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2749 |
|
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|
2750 /* Dispatch module (passing incoming messages to extensions registered callbacks) |
|
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|
2751 * is split between the library and the daemon. |
|
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|
2752 * |
|
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|
2753 * The library provides the support for associating dispatch callbacks with |
|
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|
2754 * dictionary objects. |
|
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|
2755 * |
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diff
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|
2756 * The daemon is responsible for calling the callbacks for a message when appropriate. |
|
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changeset
|
2757 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2758 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2759 * The dispatch module has two main roles: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2760 * - help determine if a message can be handled locally (during the routing step) |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2761 * This decision involves only the application-id of the message. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2762 * - pass the message to the callback(s) that will handle it (during the dispatch step) |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2763 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2764 * The first role is handled by the daemon. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2765 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2766 * About the second, these are the possibilities for registering a dispatch callback: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2767 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2768 * -> For All messages. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2769 * This callback is called for all messages that are handled locally. This should be used only |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2770 * for debug purpose. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2771 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2772 * -> by AVP value (constants only). |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2773 * This callback will be called when a message is received and contains an AVP with a specified enumerated value. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2774 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2775 * -> by AVP. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2776 * This callback will be called when the received message contains a certain AVP. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2777 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2778 * -> by command-code. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2779 * This callback will be called when the message is a specific command (and 'R' flag). |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2780 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2781 * -> by application. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2782 * This callback will be called when the message has a specific application-id. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2783 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2784 * ( by vendor: would this be useful? it may be added later) |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2785 */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2786 enum disp_how { |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2787 DISP_HOW_ANY = 1, /* Any message. This should be only used for debug. */ |
|
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Added dispatch module and tests
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parents:
6
diff
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|
2788 DISP_HOW_APPID, /* Any message with the specified application-id */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2789 DISP_HOW_CC, /* Messages of the specified command-code (request or answer). App id may be specified. */ |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2790 DISP_HOW_AVP, /* Messages containing a specific AVP. Command-code and App id may be specified. */ |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2791 DISP_HOW_AVP_ENUMVAL /* Messages containing a specific AVP with a specific enumerated value. Command-code and App id may be specified. */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2792 }; |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2793 /* |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2794 * Several criteria may be selected at the same time, for example command-code AND application id. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2795 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2796 * If several callbacks are registered for the same object, they are called in the order they were registered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2797 * The order in which the callbacks are called is: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2798 * DISP_HOW_ANY |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2799 * DISP_HOW_AVP_ENUMVAL & DISP_HOW_AVP |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2800 * DISP_HOW_CC |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2801 * DISP_HOW_APPID |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2802 */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2803 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2804 /* When a callback is registered, a "when" argument is passed in addition to the disp_how value, |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2805 * to specify which values the criteria must match. */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2806 struct disp_when { |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2807 struct dict_object * app; |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2808 struct dict_object * command; |
|
e5af94b04946
Added dispatch module and tests
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parents:
6
diff
changeset
|
2809 struct dict_object * avp; |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2810 struct dict_object * value; |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2811 }; |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2812 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2813 /* Note that all the dictionary objects should really belong to the same dictionary! |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2814 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2815 * Here is the details on this "when" argument, depending on the disp_how value. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2816 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2817 * DISP_HOW_ANY. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2818 * In this case, "when" must be NULL. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2819 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2820 * DISP_HOW_APPID. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2821 * Only the "app_id" field must be set, other fields are ignored. It points to a dictionary object of type DICT_APPLICATION. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2822 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2823 * DISP_HOW_CC. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2824 * The "command" field must be defined and point to a dictionary object of type DICT_COMMAND. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2825 * The "app_id" may be also set. In the case it is set, it restricts the callback to be called only with this command-code and app id. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2826 * The other fields are ignored. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2827 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2828 * DISP_HOW_AVP. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2829 * The "avp" field of the structure must be set and point to a dictionary object of type DICT_AVP. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2830 * The "app_id" field may be set to restrict the messages matching to a specific app id. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2831 * The "command" field may also be set to a valid DICT_COMMAND object. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2832 * The content of the "value" field is ignored. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2833 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2834 * DISP_HOW_AVP_ENUMVAL. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2835 * All fields have the same constraints and meaning as in DISP_REG_AVP. In addition, the "value" field must be set |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2836 * and points to a valid DICT_ENUMVAL object. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2837 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2838 * Here is a sumary of the fields: ( M : must be set; m : may be set; 0 : ignored ) |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2839 * field: app_id command avp value |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2840 * APPID : M 0 0 0 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2841 * CC : m M 0 0 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2842 * AVP : m m M 0 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
changeset
|
2843 * ENUMVA: m m M M |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2844 */ |
|
e5af94b04946
Added dispatch module and tests
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parents:
6
diff
changeset
|
2845 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
changeset
|
2846 enum disp_action { |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2847 DISP_ACT_CONT, /* The next handler should be called, unless *msg == NULL. */ |
|
90
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
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|
2848 DISP_ACT_SEND, /* The updated message must be sent. No further callback is called. */ |
|
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
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88
diff
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|
2849 DISP_ACT_ERROR /* An error must be created and sent as a reply -- not valid for callbacks, only for fd_msg_dispatch. */ |
|
7
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6
diff
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|
2850 }; |
|
e5af94b04946
Added dispatch module and tests
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6
diff
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|
2851 /* The callbacks that are registered have the following prototype: |
|
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6
diff
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|
2852 * int dispatch_callback( struct msg ** msg, struct avp * avp, struct session * session, enum disp_action * action ); |
|
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6
diff
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|
2853 * |
|
e5af94b04946
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6
diff
changeset
|
2854 * CALLBACK: dispatch_callback |
|
e5af94b04946
Added dispatch module and tests
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6
diff
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|
2855 * |
|
e5af94b04946
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6
diff
changeset
|
2856 * PARAMETERS: |
|
e5af94b04946
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6
diff
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|
2857 * msg : the received message on function entry. may be updated to answer on return (see description) |
|
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6
diff
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|
2858 * avp : for callbacks registered with DISP_HOW_AVP or DISP_HOW_AVP_ENUMVAL, direct link to the triggering AVP. |
|
e5af94b04946
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6
diff
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|
2859 * session : if the message contains a Session-Id AVP, the corresponding session object, NULL otherwise. |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2860 * opaque : An opaque pointer that is registered along the session handler. |
|
7
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6
diff
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|
2861 * action : upon return, this tells the daemon what to do next. |
|
e5af94b04946
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6
diff
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|
2862 * |
|
e5af94b04946
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6
diff
changeset
|
2863 * DESCRIPTION: |
|
e5af94b04946
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6
diff
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|
2864 * Called when a received message matchs the condition for which the callback was registered. |
|
e5af94b04946
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6
diff
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|
2865 * This callback may do any kind of processing on the message, including: |
|
e5af94b04946
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6
diff
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|
2866 * - create an answer for a request. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2867 * - proxy a request or message, add / remove the Proxy-Info AVP, then forward the message. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2868 * - update a routing table or start a connection with a new peer, then forward the message. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2869 * - ... |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2870 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2871 * When *action == DISP_ACT_SEND on callback return, the msg pointed by *msg is passed to the routing module for sending. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2872 * When *action == DISP_ACT_CONT, the next registered callback is called. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2873 * When the last callback gives also DISP_ACT_CONT action value, a default handler is called. It's behavior is as follow: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2874 * - if the message is an answer, it is discarded. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2875 * - if the message is a request, it is passed again to the routing stack, and marked as non-local handling. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2876 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2877 * RETURN VALUE: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2878 * 0 : The callback executed successfully and updated *action appropriately. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2879 * !0 : standard errors. In case of error, the message is discarded. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2880 */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2881 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2882 /* This structure represents a handler for a registered callback, allowing its de-registration */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2883 struct disp_hdl; |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2884 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2885 /* |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2886 * FUNCTION: fd_disp_register |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2887 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2888 * PARAMETERS: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2889 * cb : The callback function to register (see dispatch_callback description above). |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2890 * how : How the callback must be registered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2891 * when : Values that must match, depending on the how argument. |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2892 * opaque : A pointer that is passed back to the handler. The content is not interpreted by the framework. |
|
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2893 * handle : On success, a handler to the registered callback is stored here if not NULL. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2894 * This handler can be used to unregister the cb. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2895 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2896 * DESCRIPTION: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2897 * Register a new callback to handle messages delivered locally. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2898 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2899 * RETURN VALUE: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2900 * 0 : The callback is registered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2901 * EINVAL : A parameter is invalid. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2902 * ENOMEM : Not enough memory to complete the operation |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2903 */ |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2904 int fd_disp_register ( int (*cb)( struct msg **, struct avp *, struct session *, void *, enum disp_action *), |
|
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2905 enum disp_how how, struct disp_when * when, void * opaque, struct disp_hdl ** handle ); |
|
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2906 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2907 /* |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2908 * FUNCTION: fd_disp_unregister |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2909 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2910 * PARAMETERS: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2911 * handle : Location of the handle of the callback that must be unregistered. |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2912 * opaque : If not NULL, the opaque data that was registered is restored here. |
|
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2913 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2914 * DESCRIPTION: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2915 * Removes a callback previously registered by fd_disp_register. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2916 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2917 * RETURN VALUE: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2918 * 0 : The callback is unregistered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2919 * EINVAL : A parameter is invalid. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2920 */ |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2921 int fd_disp_unregister ( struct disp_hdl ** handle, void ** opaque ); |
|
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2922 |
|
90
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2923 /* Destroy all handlers */ |
|
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2924 void fd_disp_unregister_all ( void ); |
|
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2925 |
|
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2926 /* |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2927 * FUNCTION: fd_msg_dispatch |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2928 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2929 * PARAMETERS: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2930 * msg : A msg object that have already been fd_msg_parse_dict. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2931 * session : The session corresponding to this object, if any. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2932 * action : Upon return, the action that must be taken on the message |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2933 * error_code : Upon return with action == DISP_ACT_ERROR, contains the error (such as "DIAMETER_UNABLE_TO_COMPLY") |
|
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2934 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2935 * DESCRIPTION: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2936 * Call all handlers registered for a given message. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2937 * The session must have already been resolved on entry. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2938 * The msg pointed may be updated during this process. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2939 * Upon return, the action parameter points to what must be done next. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2940 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2941 * RETURN VALUE: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2942 * 0 : Success. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2943 * EINVAL : A parameter is invalid. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2944 * (other errors) |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2945 */ |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2946 int fd_msg_dispatch ( struct msg ** msg, struct session * session, enum disp_action *action, char ** error_code ); |
|
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2947 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2948 |
| 0 | 2949 |
| 2950 /*============================================================*/ | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2951 /* QUEUES */ |
| 0 | 2952 /*============================================================*/ |
| 2953 | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2954 /* Management of FIFO queues of elements */ |
| 0 | 2955 |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2956 /* A queue is an opaque object */ |
|
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2957 struct fifo; |
| 0 | 2958 |
| 2959 /* | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2960 * FUNCTION: fd_fifo_new |
| 0 | 2961 * |
| 2962 * PARAMETERS: | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2963 * queue : Upon success, a pointer to the new queue is saved here. |
|
767
c47c16436f71
Added a limit on fifo queues to avoid memory exaustion when messages are received faster than handled
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
764
diff
changeset
|
2964 * max : max number of items in the queue. Above this number, adding a new item becomes a |
|
c47c16436f71
Added a limit on fifo queues to avoid memory exaustion when messages are received faster than handled
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
764
diff
changeset
|
2965 * blocking operation. Use 0 to disable this maximum. |
| 0 | 2966 * |
| 2967 * DESCRIPTION: | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2968 * Create a new empty queue. |
| 0 | 2969 * |
| 2970 * RETURN VALUE : | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2971 * 0 : The queue has been initialized successfully. |
| 0 | 2972 * EINVAL : The parameter is invalid. |
| 2973 * ENOMEM : Not enough memory to complete the creation. | |
| 2974 */ | |
|
767
c47c16436f71
Added a limit on fifo queues to avoid memory exaustion when messages are received faster than handled
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
764
diff
changeset
|
2975 int fd_fifo_new ( struct fifo ** queue, int max ); |
| 0 | 2976 |
| 2977 /* | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2978 * FUNCTION: fd_fifo_del |
| 0 | 2979 * |
| 2980 * PARAMETERS: | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2981 * queue : Pointer to an empty queue to delete. |
| 0 | 2982 * |
| 2983 * DESCRIPTION: | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2984 * Destroys a queue. This is only possible if no thread is waiting for an element, |
| 0 | 2985 * and the queue is empty. |
| 2986 * | |
| 2987 * RETURN VALUE: | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2988 * 0 : The queue has been destroyed successfully. |
| 0 | 2989 * EINVAL : The parameter is invalid. |
| 2990 */ | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2991 int fd_fifo_del ( struct fifo ** queue ); |
| 0 | 2992 |
| 2993 /* | |
|
25
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
2994 * FUNCTION: fd_fifo_move |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
2995 * |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
2996 * PARAMETERS: |
|
653
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
diff
changeset
|
2997 * oldq : Location of a FIFO that is to be emptied. |
|
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
diff
changeset
|
2998 * newq : A FIFO that will receive the old data. |
|
25
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
2999 * loc_update : if non NULL, a place to store the pointer to new FIFO atomically with the move. |
|
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3000 * |
|
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3001 * DESCRIPTION: |
|
43
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3002 * Empties a queue and move its content to another one atomically. |
|
25
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3003 * |
|
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3004 * RETURN VALUE: |
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3005 * 0 : The queue has been destroyed successfully. |
|
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3006 * EINVAL : A parameter is invalid. |
|
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3007 */ |
|
653
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3008 int fd_fifo_move ( struct fifo * oldq, struct fifo * newq, struct fifo ** loc_update ); |
|
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3009 |
|
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3010 /* |
|
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3011 * FUNCTION: fd_fifo_length |
| 0 | 3012 * |
| 3013 * PARAMETERS: | |
|
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3014 * queue : The queue from which to retrieve the number of elements. |
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3015 * length : Upon success, the current number of elements in the queue is stored here. |
| 0 | 3016 * |
| 3017 * DESCRIPTION: | |
|
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3018 * Retrieve the number of elements in a queue. |
| 0 | 3019 * |
| 3020 * RETURN VALUE: | |
| 3021 * 0 : The length of the queue has been written. | |
| 3022 * EINVAL : A parameter is invalid. | |
| 3023 */ | |
|
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3024 int fd_fifo_length ( struct fifo * queue, int * length ); |
|
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3025 int fd_fifo_length_noerr ( struct fifo * queue ); /* no error checking version */ |
| 0 | 3026 |
| 3027 /* | |
|
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3028 * FUNCTION: fd_fifo_setthrhd |
| 0 | 3029 * |
| 3030 * PARAMETERS: | |
| 3031 * queue : The queue for which the thresholds are being set. | |
| 3032 * data : An opaque pointer that is passed to h_cb and l_cb callbacks. | |
| 3033 * high : The high-level threshold. If the number of elements in the queue increase to this value, h_cb is called. | |
| 3034 * h_cb : if not NULL, a callback to call when the queue lengh is bigger than "high". | |
| 3035 * low : The low-level threshold. Must be < high. | |
| 3036 * l_cb : If the number of elements decrease to low, this callback is called. | |
| 3037 * | |
| 3038 * DESCRIPTION: | |
| 3039 * This function allows to adjust the number of producer / consumer threads of a queue. | |
|
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3040 * If the consumer are slower than the producers, the number of elements in the queue increase. |
| 0 | 3041 * By setting a "high" value, we allow a callback to be called when this number is too high. |
| 3042 * The typical use would be to create an additional consumer thread in this callback. | |
| 3043 * If the queue continues to grow, the callback will be called again when the length is 2 * high, then 3*high, ... N * high | |
|
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3044 * (the callback itself should implement a limit on the number of consumers that can be created) |
| 0 | 3045 * When the queue starts to decrease, and the number of elements go under ((N - 1) * high + low, the l_cb callback is called |
|
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3046 * and would typially stop one of the consumer threads. If the queue continues to reduce, l_cb is again called at (N-2)*high + low, |
| 0 | 3047 * and so on. |
| 3048 * | |
| 3049 * Since there is no destructor for the data pointer, if cleanup operations are required, they should be performed in | |
| 3050 * l_cb when the length of the queue is becoming < low. | |
| 3051 * | |
|
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3052 * Note that the callbacks are called synchronously, during fd_fifo_post or fd_fifo_get. Their operation should be quick. |
| 0 | 3053 * |
| 3054 * RETURN VALUE: | |
| 3055 * 0 : The thresholds have been set | |
| 3056 * EINVAL : A parameter is invalid. | |
| 3057 */ | |
|
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3058 int fd_fifo_setthrhd ( struct fifo * queue, void * data, uint16_t high, void (*h_cb)(struct fifo *, void **), uint16_t low, void (*l_cb)(struct fifo *, void **) ); |
| 0 | 3059 |
| 3060 /* | |
|
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3061 * FUNCTION: fd_fifo_post |
| 0 | 3062 * |
| 3063 * PARAMETERS: | |
|
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3064 * queue : The queue in which the element must be posted. |
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3065 * item : The element that is put in the queue. |
| 0 | 3066 * |
| 3067 * DESCRIPTION: | |
|
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3068 * An element is added in a queue. Elements are retrieved from the queue in FIFO order |
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3069 * with the fd_fifo_get, fd_fifo_tryget, or fd_fifo_timedget functions. |
| 0 | 3070 * |
| 3071 * RETURN VALUE: | |
|
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3072 * 0 : The element is queued. |
| 0 | 3073 * EINVAL : A parameter is invalid. |
| 3074 * ENOMEM : Not enough memory to complete the operation. | |
| 3075 */ | |
|
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3076 int fd_fifo_post_int ( struct fifo * queue, void ** item ); |
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3077 #define fd_fifo_post(queue, item) \ |
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3078 fd_fifo_post_int((queue), (void *)(item)) |
| 0 | 3079 |
| 3080 /* | |
|
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3081 * FUNCTION: fd_fifo_get |
| 0 | 3082 * |
| 3083 * PARAMETERS: | |
|
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3084 * queue : The queue from which the first element must be retrieved. |
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3085 * item : On return, the first element of the queue is stored here. |
| 0 | 3086 * |
| 3087 * DESCRIPTION: | |
|
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3088 * This function retrieves the first element from a queue. If the queue is empty, the function will block the |
|
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3089 * thread until a new element is posted to the queue, or until the thread is canceled (in which case the |
| 0 | 3090 * function does not return). |
| 3091 * | |
| 3092 * RETURN VALUE: | |
|
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3093 * 0 : A new element has been retrieved. |
| 0 | 3094 * EINVAL : A parameter is invalid. |
| 3095 */ | |
|
620
bc7328e600f0
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|
3096 int fd_fifo_get_int ( struct fifo * queue, void ** item ); |
|
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|
3097 #define fd_fifo_get(queue, item) \ |
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3098 fd_fifo_get_int((queue), (void *)(item)) |
| 0 | 3099 |
| 3100 /* | |
|
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3101 * FUNCTION: fd_fifo_tryget |
| 0 | 3102 * |
| 3103 * PARAMETERS: | |
|
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3104 * queue : The queue from which the element must be retrieved. |
|
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3105 * item : On return, the first element of the queue is stored here. |
| 0 | 3106 * |
| 3107 * DESCRIPTION: | |
|
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3108 * This function is similar to fd_fifo_get, except that it will not block if |
| 0 | 3109 * the queue is empty, but return EWOULDBLOCK instead. |
| 3110 * | |
| 3111 * RETURN VALUE: | |
|
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3112 * 0 : A new element has been retrieved. |
| 0 | 3113 * EINVAL : A parameter is invalid. |
| 3114 * EWOULDBLOCK : The queue was empty. | |
| 3115 */ | |
|
620
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3116 int fd_fifo_tryget_int ( struct fifo * queue, void ** item ); |
|
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3117 #define fd_fifo_tryget(queue, item) \ |
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3118 fd_fifo_tryget_int((queue), (void *)(item)) |
| 0 | 3119 |
| 3120 /* | |
|
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3121 * FUNCTION: fd_fifo_timedget |
| 0 | 3122 * |
| 3123 * PARAMETERS: | |
|
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3124 * queue : The queue from which the element must be retrieved. |
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3125 * item : On return, the element is stored here. |
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3126 * abstime : the absolute time until which we allow waiting for an item. |
| 0 | 3127 * |
| 3128 * DESCRIPTION: | |
|
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3129 * This function is similar to fd_fifo_get, except that it will block if the queue is empty |
| 0 | 3130 * only until the absolute time abstime (see pthread_cond_timedwait for + info). |
| 3131 * If the queue is still empty when the time expires, the function returns ETIMEDOUT | |
| 3132 * | |
| 3133 * RETURN VALUE: | |
|
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3134 * 0 : A new item has been retrieved. |
| 0 | 3135 * EINVAL : A parameter is invalid. |
|
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3136 * ETIMEDOUT : The time out has passed and no item has been received. |
| 0 | 3137 */ |
|
620
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3138 int fd_fifo_timedget_int ( struct fifo * queue, void ** item, const struct timespec *abstime ); |
|
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3139 #define fd_fifo_timedget(queue, item, abstime) \ |
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3140 fd_fifo_timedget_int((queue), (void *)(item), (abstime)) |
| 0 | 3141 |
|
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3142 /* Dump a fifo list and optionally its inner elements -- beware of deadlocks! */ |
|
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|
3143 void fd_fifo_dump(int level, char * name, struct fifo * queue, void (*dump_item)(int level, void * item)); |
|
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3144 |
|
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|
3145 #ifdef __cplusplus |
|
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3146 } |
|
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3147 #endif |
|
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3148 |
|
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3149 #endif /* _LIBFDPROTO_H */ |