Mercurial > hg > freeDiameter
annotate include/freeDiameter/libfreeDiameter.h @ 620:bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
| author | Sebastien Decugis <sdecugis@nict.go.jp> |
|---|---|
| date | Mon, 06 Dec 2010 14:45:49 +0900 |
| parents | 1dbc4c5397d6 |
| children | 04dbea46c7a2 |
| rev | line source |
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| 0 | 1 /********************************************************************************************************* |
| 2 * Software License Agreement (BSD License) * | |
| 3 * Author: Sebastien Decugis <sdecugis@nict.go.jp> * | |
| 4 * * | |
|
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5 * Copyright (c) 2010, 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 * THREADS |
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48 * LISTS |
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49 * DICTIONARY |
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50 * SESSIONS |
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51 * MESSAGES |
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52 * DISPATCH |
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53 * QUEUES |
| 0 | 54 */ |
| 55 | |
| 56 #ifndef _LIBFREEDIAMETER_H | |
| 57 #define _LIBFREEDIAMETER_H | |
| 58 | |
| 59 #ifndef FD_IS_CONFIG | |
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60 #error "You must include 'freeDiameter-host.h' before this file." |
| 0 | 61 #endif /* FD_IS_CONFIG */ |
| 62 | |
| 63 #include <pthread.h> | |
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64 #include <sched.h> |
| 0 | 65 #include <string.h> |
| 66 #include <assert.h> | |
| 67 #include <errno.h> | |
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68 #include <netinet/in.h> |
| 0 | 69 #include <arpa/inet.h> |
| 70 #include <sys/socket.h> | |
| 71 #include <netdb.h> | |
| 72 #include <stdio.h> | |
| 73 #include <stdlib.h> | |
| 74 #include <unistd.h> | |
| 75 | |
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76 #ifdef DEBUG |
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77 #include <libgen.h> /* for basename if --dbg_file is specified */ |
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78 #endif /* DEBUG */ |
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79 |
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80 /*============================================================*/ |
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81 /* INIT */ |
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82 /*============================================================*/ |
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83 #ifndef SWIG /* This section is not included in wrapper */ |
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84 |
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85 |
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86 /* This function must be called first, before any call to another library function */ |
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87 /* If the parameter is not 0, the support for signals (fd_sig_register) is enabled, otherwise it is disabled */ |
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88 /* The function must be called while the application is single-threaded to enable support for signals */ |
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89 int fd_lib_init(int support_signals); |
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90 |
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91 /* Call this one when the application terminates, to destroy internal threads */ |
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92 void fd_lib_fini(void); |
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93 |
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94 |
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95 #endif /* !SWIG */ |
| 0 | 96 /*============================================================*/ |
| 97 /* DEBUG */ | |
| 98 /*============================================================*/ | |
| 99 | |
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100 |
| 0 | 101 /* |
| 102 * FUNCTION: fd_log_debug | |
| 103 * | |
| 104 * PARAMETERS: | |
| 105 * format : Same format string as in the printf function | |
| 106 * ... : Same list as printf | |
| 107 * | |
| 108 * DESCRIPTION: | |
| 109 * Log internal information for use of developpers only. | |
| 110 * The format and arguments may contain UTF-8 encoded data. The | |
| 111 * output medium (file or console) is expected to support this encoding. | |
| 112 * | |
| 113 * This function assumes that a global mutex called "fd_log_lock" exists | |
| 114 * in the address space of the current process. | |
| 115 * | |
| 116 * RETURN VALUE: | |
| 117 * None. | |
| 118 */ | |
| 119 void fd_log_debug ( char * format, ... ); | |
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120 #ifndef SWIG |
| 0 | 121 extern pthread_mutex_t fd_log_lock; |
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122 #endif /* !SWIG */ |
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123 extern char * fd_debug_one_function; |
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124 extern char * fd_debug_one_file; |
| 0 | 125 |
| 126 /* | |
| 127 * FUNCTION: fd_log_threadname | |
| 128 * | |
| 129 * PARAMETERS: | |
| 130 * name : \0-terminated string containing a name to identify the current thread. | |
| 131 * | |
| 132 * DESCRIPTION: | |
| 133 * Name the current thread, useful for debugging multi-threaded problems. | |
| 134 * | |
| 135 * This function assumes that a global thread-specific key called "fd_log_thname" exists | |
| 136 * in the address space of the current process. | |
| 137 * | |
| 138 * RETURN VALUE: | |
| 139 * None. | |
| 140 */ | |
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141 #ifndef SWIG |
| 0 | 142 void fd_log_threadname ( char * name ); |
| 143 extern pthread_key_t fd_log_thname; | |
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144 #endif /* !SWIG */ |
| 0 | 145 |
| 146 /* | |
| 147 * FUNCTION: fd_log_time | |
| 148 * | |
| 149 * PARAMETERS: | |
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150 * ts : The timestamp to log, or NULL for "now" |
| 0 | 151 * buf : An array where the time must be stored |
| 152 * len : size of the buffer | |
| 153 * | |
| 154 * DESCRIPTION: | |
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155 * Writes the timestamp (in human readable format) in a buffer. |
| 0 | 156 * |
| 157 * RETURN VALUE: | |
| 158 * pointer to buf. | |
| 159 */ | |
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160 char * fd_log_time ( struct timespec * ts, char * buf, size_t len ); |
| 0 | 161 |
| 162 | |
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163 /*============================================================*/ |
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164 /* DEBUG MACROS */ |
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165 /*============================================================*/ |
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166 |
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167 #ifndef SWIG |
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168 #ifndef ASSERT |
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169 #define ASSERT(x) assert(x) |
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170 #endif /* ASSERT */ |
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171 #endif /* !SWIG */ |
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172 |
| 0 | 173 /* levels definitions */ |
| 174 #define NONE 0 /* Display no debug message */ | |
| 175 #define INFO 1 /* Display errors only */ | |
| 176 #define FULL 2 /* Display additional information to follow code execution */ | |
| 177 #define ANNOYING 4 /* Very verbose, for example in loops */ | |
| 178 #define FCTS 6 /* Display entry parameters of most functions */ | |
| 179 #define CALL 9 /* Display calls to most functions (with CHECK macros) */ | |
| 180 | |
| 181 /* Default level is INFO */ | |
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182 #ifndef SWIG |
| 0 | 183 #ifndef TRACE_LEVEL |
| 184 #define TRACE_LEVEL INFO | |
| 185 #endif /* TRACE_LEVEL */ | |
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186 #endif /* !SWIG */ |
| 0 | 187 |
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188 /* The level of the file being compiled. */ |
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189 #ifndef SWIG |
| 0 | 190 static int local_debug_level = TRACE_LEVEL; |
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191 #endif /* !SWIG */ |
| 0 | 192 |
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193 /* A global level, changed by configuration or cmd line for example. default is 0. */ |
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194 extern int fd_g_debug_lvl; |
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195 |
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196 /* Some portability code to get nice function name in __PRETTY_FUNCTION__ */ |
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197 #ifndef SWIG |
| 0 | 198 #if __STDC_VERSION__ < 199901L |
| 199 # if __GNUC__ >= 2 | |
| 200 # define __func__ __FUNCTION__ | |
| 201 # else /* __GNUC__ >= 2 */ | |
| 202 # define __func__ "<unknown>" | |
| 203 # endif /* __GNUC__ >= 2 */ | |
| 204 #endif /* __STDC_VERSION__ < 199901L */ | |
| 205 #ifndef __PRETTY_FUNCTION__ | |
| 206 #define __PRETTY_FUNCTION__ __func__ | |
| 207 #endif /* __PRETTY_FUNCTION__ */ | |
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208 #endif /* !SWIG */ |
| 0 | 209 |
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210 /* A version of __FILE__ without the full path */ |
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211 #ifndef SWIG |
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212 static char * file_bname = NULL; |
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213 #define __STRIPPED_FILE__ (file_bname ?: (file_bname = basename(__FILE__))) |
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214 #endif /* !SWIG */ |
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215 |
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216 |
| 0 | 217 /* Boolean for tracing at a certain level */ |
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218 #ifndef SWIG |
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219 #ifdef DEBUG |
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220 #define TRACE_BOOL(_level_) ( ((_level_) <= local_debug_level + fd_g_debug_lvl) \ |
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221 || (fd_debug_one_function && !strcmp(fd_debug_one_function, __PRETTY_FUNCTION__)) \ |
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205
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222 || (fd_debug_one_file && !strcmp(fd_debug_one_file, __STRIPPED_FILE__) ) ) |
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223 #else /* DEBUG */ |
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224 #define TRACE_BOOL(_level_) ((_level_) <= local_debug_level + fd_g_debug_lvl) |
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225 #endif /* DEBUG */ |
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226 #endif /* !SWIG */ |
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226
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228 |
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229 /************* |
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230 The general debug macro, each call results in two lines of debug messages (change the macro for more compact output) |
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231 *************/ |
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232 #ifndef SWIG |
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233 #ifdef DEBUG |
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234 /* In DEBUG mode, we add (a lot of) meta-information along each trace. This makes multi-threading problems easier to debug. */ |
| 0 | 235 #define TRACE_DEBUG(level,format,args... ) { \ |
| 236 if ( TRACE_BOOL(level) ) { \ | |
| 237 char __buf[25]; \ | |
| 238 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ | |
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239 fd_log_debug("\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
| 0 | 240 "\t%s|%*s" format "\n", \ |
| 206 | 241 __thn, fd_log_time(NULL, __buf, sizeof(__buf)), __PRETTY_FUNCTION__, __FILE__, __LINE__,\ |
| 0 | 242 (level < FULL)?"@":" ",level, "", ## args); \ |
| 243 } \ | |
| 244 } | |
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245 #else /* DEBUG */ |
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304
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246 /* Do not print thread, function, ... only the message itself in this case, unless the debug level is set > FULL. */ |
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247 #define TRACE_DEBUG(level,format,args... ) { \ |
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248 if ( TRACE_BOOL(level) ) { \ |
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249 if (fd_g_debug_lvl > FULL) { \ |
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250 char __buf[25]; \ |
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251 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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252 fd_log_debug("\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
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253 "\t%s|%*s" format "\n", \ |
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254 __thn, fd_log_time(NULL, __buf, sizeof(__buf)), __PRETTY_FUNCTION__, __FILE__, __LINE__,\ |
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255 (level < FULL)?"@":" ",level, "", ## args); \ |
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256 } else { \ |
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257 fd_log_debug(format "\n", ## args); \ |
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258 } \ |
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259 } \ |
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260 } |
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261 #endif /* DEBUG */ |
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262 #endif /* !SWIG */ |
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226
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264 /************* |
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265 Derivatives from this macro |
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266 ************/ |
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267 #ifndef SWIG |
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268 /* Helper for function entry -- for very detailed trace of the execution */ |
| 0 | 269 #define TRACE_ENTRY(_format,_args... ) \ |
|
29
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270 TRACE_DEBUG(FCTS, "[enter] %s(" _format ") {" #_args "}", __PRETTY_FUNCTION__, ##_args ); |
| 0 | 271 |
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272 /* Helper for debugging by adding traces -- for debuging a specific location of the code */ |
| 0 | 273 #define TRACE_HERE() \ |
|
183
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274 TRACE_DEBUG(NONE, " -- debug checkpoint %d -- ", fd_breakhere()); |
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275 int fd_breakhere(void); |
| 0 | 276 |
|
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277 /* Helper for tracing the CHECK_* macros bellow -- very very verbose code execution! */ |
| 0 | 278 #define TRACE_DEBUG_ALL( str ) \ |
| 279 TRACE_DEBUG(CALL, str ); | |
| 280 | |
|
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281 /* For development only, to keep track of TODO locations in the code */ |
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282 #ifndef ERRORS_ON_TODO |
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283 #define TODO( _msg, _args... ) \ |
|
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284 TRACE_DEBUG(NONE, "TODO: " _msg , ##_args); |
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285 #else /* ERRORS_ON_TODO */ |
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286 #define TODO( _msg, _args... ) \ |
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287 "TODO" = _msg ## _args; /* just a stupid compilation error to spot the todo */ |
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288 #endif /* ERRORS_ON_TODO */ |
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289 |
|
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290 /* Trace a binary buffer content */ |
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291 #define TRACE_DEBUG_BUFFER(level, prefix, buf, bufsz, suffix ) { \ |
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292 if ( TRACE_BOOL(level) ) { \ |
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293 char __ts[25]; \ |
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294 int __i; \ |
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295 size_t __sz = (size_t)(bufsz); \ |
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296 uint8_t * __buf = (uint8_t *)(buf); \ |
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297 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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298 fd_log_debug("\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
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299 "\t%s|%*s" prefix , \ |
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300 __thn, fd_log_time(NULL, __ts, sizeof(__ts)), __PRETTY_FUNCTION__, __FILE__, __LINE__, \ |
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301 (level < FULL)?"@":" ",level, ""); \ |
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302 for (__i = 0; __i < __sz; __i++) { \ |
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303 fd_log_debug("%02.2hhx", __buf[__i]); \ |
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304 } \ |
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305 fd_log_debug(suffix "\n"); \ |
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306 } \ |
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307 } |
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308 |
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309 /* Some aliases to socket addresses structures */ |
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310 #define sSS struct sockaddr_storage |
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311 #define sSA struct sockaddr |
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312 #define sSA4 struct sockaddr_in |
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313 #define sSA6 struct sockaddr_in6 |
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314 |
|
246
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315 /* The sockaddr length of a sSS structure */ |
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316 #define sSAlen( _sa_ ) \ |
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317 ( (socklen_t) ( (((sSA *)_sa_)->sa_family == AF_INET) ? (sizeof(sSA4)) : \ |
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318 ((((sSA *)_sa_)->sa_family == AF_INET6) ? (sizeof(sSA6)) : \ |
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319 0 ) ) ) |
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320 |
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321 /* Dump one sockaddr Node information */ |
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322 #define sSA_DUMP_NODE( sa, flag ) { \ |
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323 sSA * __sa = (sSA *)(sa); \ |
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324 char __addrbuf[INET6_ADDRSTRLEN]; \ |
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325 if (__sa) { \ |
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326 int __rc = getnameinfo(__sa, \ |
|
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327 sSAlen(__sa), \ |
|
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328 __addrbuf, \ |
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329 sizeof(__addrbuf), \ |
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330 NULL, \ |
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331 0, \ |
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332 flag); \ |
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333 if (__rc) \ |
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334 fd_log_debug("%s", (char *)gai_strerror(__rc)); \ |
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335 else \ |
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336 fd_log_debug("%s", &__addrbuf[0]); \ |
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337 } else { \ |
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338 fd_log_debug("(NULL / ANY)"); \ |
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339 } \ |
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340 } |
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341 /* Same but with the port (service) also */ |
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342 #define sSA_DUMP_NODE_SERV( sa, flag ) { \ |
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343 sSA * __sa = (sSA *)(sa); \ |
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344 char __addrbuf[INET6_ADDRSTRLEN]; \ |
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345 char __servbuf[32]; \ |
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346 if (__sa) { \ |
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347 int __rc = getnameinfo(__sa, \ |
|
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348 sSAlen(__sa), \ |
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349 __addrbuf, \ |
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350 sizeof(__addrbuf), \ |
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351 __servbuf, \ |
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352 sizeof(__servbuf), \ |
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353 flag); \ |
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354 if (__rc) \ |
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355 fd_log_debug("%s", (char *)gai_strerror(__rc)); \ |
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356 else \ |
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357 fd_log_debug("[%s]:%s", &__addrbuf[0],&__servbuf[0]); \ |
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358 } else { \ |
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359 fd_log_debug("(NULL / ANY)"); \ |
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360 } \ |
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361 } |
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362 |
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363 /* Inside a debug trace */ |
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364 #define TRACE_DEBUG_sSA(level, prefix, sa, flags, suffix ) { \ |
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365 if ( TRACE_BOOL(level) ) { \ |
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366 char __buf[25]; \ |
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367 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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368 fd_log_debug("\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
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369 "\t%s|%*s" prefix , \ |
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370 __thn, fd_log_time(NULL, __buf, sizeof(__buf)), __PRETTY_FUNCTION__, __FILE__, __LINE__,\ |
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371 (level < FULL)?"@":" ",level, ""); \ |
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372 sSA_DUMP_NODE_SERV( sa, flags ); \ |
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373 fd_log_debug(suffix "\n"); \ |
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374 } \ |
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375 } |
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376 |
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377 /* Report an error */ |
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378 #define TRACE_DEBUG_ERROR(format,args... ) \ |
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379 TRACE_DEBUG(NONE, format, ##args) |
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380 |
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381 /****************** |
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382 Optimized code: remove all debugging code |
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383 **/ |
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384 #ifdef STRIP_DEBUG_CODE |
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385 #undef TRACE_DEBUG |
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386 #undef TRACE_BOOL |
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387 #undef TRACE_DEBUG_sSA |
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388 #undef TRACE_DEBUG_BUFFER |
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389 #undef TRACE_DEBUG_ERROR |
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390 #define TRACE_DEBUG(level,format,args... ) |
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391 #define TRACE_BOOL(_level_) (0) |
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392 #define TRACE_DEBUG_BUFFER(level, prefix, buf, bufsz, suffix ) |
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393 #define TRACE_DEBUG_sSA(level, prefix, sa, flags, suffix ) |
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394 #define TRACE_DEBUG_ERROR(format,args... ) { \ |
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395 fd_log_debug(format "\n", ## args); \ |
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396 } |
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397 #endif /* STRIP_DEBUG_CODE */ |
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398 |
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399 #endif /* !SWIG */ |
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400 |
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401 /*============================================================*/ |
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402 /* ERROR CHECKING MACRO */ |
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403 /*============================================================*/ |
| 0 | 404 |
| 405 /* Macros to check a return value and branch out in case of error. | |
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406 * These macro should be used only when errors are improbable, not for expected errors. |
| 0 | 407 */ |
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408 #ifndef SWIG |
| 0 | 409 |
| 410 /* Check the return value of a system function and execute fallback in case of error */ | |
| 411 #define CHECK_SYS_DO( __call__, __fallback__ ) { \ | |
| 412 int __ret__; \ | |
| 413 TRACE_DEBUG_ALL( "Check SYS: " #__call__ ); \ | |
| 414 __ret__ = (__call__); \ | |
| 415 if (__ret__ < 0) { \ | |
| 416 int __err__ = errno; /* We may handle EINTR here */ \ | |
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417 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "' :\t%s", strerror(__err__));\ |
| 0 | 418 __fallback__; \ |
| 419 } \ | |
| 420 } | |
| 421 /* Check the return value of a system function, return error code on error */ | |
| 422 #define CHECK_SYS( __call__ ) { \ | |
| 423 int __ret__; \ | |
| 424 TRACE_DEBUG_ALL( "Check SYS: " #__call__ ); \ | |
| 425 __ret__ = (__call__); \ | |
| 426 if (__ret__ < 0) { \ | |
| 427 int __err__ = errno; /* We may handle EINTR here */ \ | |
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428 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "' :\t%s", strerror(__err__));\ |
| 0 | 429 return __err__; \ |
| 430 } \ | |
| 431 } | |
| 432 | |
| 433 /* Check the return value of a POSIX function and execute fallback in case of error or special value */ | |
| 434 #define CHECK_POSIX_DO2( __call__, __speval__, __fallback1__, __fallback2__ ) { \ | |
| 435 int __ret__; \ | |
| 436 TRACE_DEBUG_ALL( "Check POSIX: " #__call__ ); \ | |
| 437 __ret__ = (__call__); \ | |
| 438 if (__ret__ != 0) { \ | |
| 439 if (__ret__ == (__speval__)) { \ | |
| 440 __fallback1__; \ | |
| 441 } else { \ | |
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442 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__ret__)); \ |
| 0 | 443 __fallback2__; \ |
| 444 } \ | |
| 445 } \ | |
| 446 } | |
| 447 | |
| 448 /* Check the return value of a POSIX function and execute fallback in case of error */ | |
| 449 #define CHECK_POSIX_DO( __call__, __fallback__ ) \ | |
| 450 CHECK_POSIX_DO2( (__call__), 0, , __fallback__ ); | |
| 451 | |
| 452 /* Check the return value of a POSIX function and return it if error */ | |
| 453 #define CHECK_POSIX( __call__ ) { \ | |
| 454 int __v__; \ | |
| 455 CHECK_POSIX_DO( __v__ = (__call__), return __v__ ); \ | |
| 456 } | |
| 457 | |
| 458 /* Check that a memory allocator did not return NULL, otherwise log an error and execute fallback */ | |
| 459 #define CHECK_MALLOC_DO( __call__, __fallback__ ) { \ | |
| 460 void * __ret__; \ | |
| 461 TRACE_DEBUG_ALL( "Check MALLOC: " #__call__ ); \ | |
| 462 __ret__ = (void *)( __call__ ); \ | |
| 463 if (__ret__ == NULL) { \ | |
| 464 int __err__ = errno; \ | |
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465 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__err__)); \ |
| 0 | 466 __fallback__; \ |
| 467 } \ | |
| 468 } | |
| 469 | |
| 470 /* Check that a memory allocator did not return NULL, otherwise return ENOMEM */ | |
| 471 #define CHECK_MALLOC( __call__ ) \ | |
| 472 CHECK_MALLOC_DO( __call__, return ENOMEM ); | |
| 473 | |
| 474 | |
| 475 /* Check parameters at function entry, execute fallback on error */ | |
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476 #define CHECK_PARAMS_DO( __bool__, __fallback__ ) \ |
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477 TRACE_DEBUG_ALL( "Check PARAMS: " #__bool__ ); \ |
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478 if ( ! (__bool__) ) { \ |
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479 TRACE_DEBUG_ERROR("Warning: Invalid parameter received in '" #__bool__ "'"); \ |
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480 __fallback__; \ |
| 0 | 481 } |
| 482 /* Check parameters at function entry, return EINVAL if the boolean is false (similar to assert) */ | |
| 483 #define CHECK_PARAMS( __bool__ ) \ | |
| 484 CHECK_PARAMS_DO( __bool__, return EINVAL ); | |
| 485 | |
| 486 /* Check the return value of an internal function, log and propagate */ | |
| 487 #define CHECK_FCT_DO( __call__, __fallback__ ) { \ | |
| 488 int __ret__; \ | |
| 489 TRACE_DEBUG_ALL( "Check FCT: " #__call__ ); \ | |
| 490 __ret__ = (__call__); \ | |
| 491 if (__ret__ != 0) { \ | |
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492 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__ret__)); \ |
| 0 | 493 __fallback__; \ |
| 494 } \ | |
| 495 } | |
| 496 /* Check the return value of a function call, return any error code */ | |
| 497 #define CHECK_FCT( __call__ ) { \ | |
| 498 int __v__; \ | |
| 499 CHECK_FCT_DO( __v__ = (__call__), return __v__ ); \ | |
| 500 } | |
| 501 | |
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502 #endif /* !SWIG */ |
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503 |
|
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504 |
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505 /*============================================================*/ |
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506 /* OTHER MACROS */ |
|
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507 /*============================================================*/ |
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508 |
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509 #ifndef SWIG |
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510 |
|
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511 /* helper macros (pre-processor hacks to allow macro arguments) */ |
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512 #define __str( arg ) #arg |
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513 #define _stringize( arg ) __str( arg ) |
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514 #define __agr( arg1, arg2 ) arg1 ## arg2 |
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515 #define _aggregate( arg1, arg2 ) __agr( arg1, arg2 ) |
| 0 | 516 |
| 517 | |
|
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518 /* A l4 protocol name (TCP / SCTP) */ |
|
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519 #ifdef DISABLE_SCTP |
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520 #define IPPROTO_NAME( _proto ) \ |
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521 (((_proto) == IPPROTO_TCP) ? "TCP" : \ |
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522 "Unknown") |
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523 #else /* DISABLE_SCTP */ |
|
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524 #define IPPROTO_NAME( _proto ) \ |
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525 ( ((_proto) == IPPROTO_TCP) ? "TCP" : \ |
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526 (((_proto) == IPPROTO_SCTP) ? "SCTP" : \ |
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527 "Unknown")) |
|
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528 #endif /* DISABLE_SCTP */ |
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529 |
| 0 | 530 /* Define the value of IP loopback address */ |
| 531 #ifndef INADDR_LOOPBACK | |
| 532 #define INADDR_LOOPBACK inet_addr("127.0.0.1") | |
| 533 #endif /* INADDR_LOOPBACK */ | |
| 534 | |
|
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535 #ifndef INADDR_BROADCAST |
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536 #define INADDR_BROADCAST ((in_addr_t) 0xffffffff) |
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537 #endif /* INADDR_BROADCAST */ |
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538 |
|
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539 /* An IP equivalent to IN6_IS_ADDR_LOOPBACK */ |
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540 #ifndef IN_IS_ADDR_LOOPBACK |
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541 #define IN_IS_ADDR_LOOPBACK(a) \ |
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542 ((((long int) (a)->s_addr) & ntohl(0xff000000)) == ntohl(0x7f000000)) |
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543 #endif /* IN_IS_ADDR_LOOPBACK */ |
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544 |
|
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545 /* An IP equivalent to IN6_IS_ADDR_UNSPECIFIED */ |
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546 #ifndef IN_IS_ADDR_UNSPECIFIED |
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547 #define IN_IS_ADDR_UNSPECIFIED(a) \ |
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548 (((long int) (a)->s_addr) == 0x00000000) |
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549 #endif /* IN_IS_ADDR_UNSPECIFIED */ |
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550 |
| 0 | 551 /* create a V4MAPPED address */ |
| 552 #define IN6_ADDR_V4MAP( a6, a4 ) { \ | |
| 553 ((uint32_t *)(a6))[0] = 0; \ | |
| 554 ((uint32_t *)(a6))[1] = 0; \ | |
| 555 ((uint32_t *)(a6))[2] = htonl(0xffff); \ | |
| 556 ((uint32_t *)(a6))[3] = (uint32_t)(a4); \ | |
| 557 } | |
| 558 | |
| 559 /* Retrieve a v4 value from V4MAPPED address ( takes a s6_addr as param) */ | |
| 560 #define IN6_ADDR_V4UNMAP( a6 ) \ | |
| 561 (((in_addr_t *)(a6))[3]) | |
| 562 | |
| 563 | |
| 564 /* We provide macros to convert 64 bit values to and from network byte-order, on systems where it is not already provided. */ | |
|
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565 #ifndef HAVE_NTOHLL /* Defined by the cmake step, if the ntohll symbol is defined on the system */ |
| 0 | 566 # if HOST_BIG_ENDIAN |
| 567 /* In big-endian systems, we don't have to change the values, since the order is the same as network */ | |
| 568 # define ntohll(x) (x) | |
| 569 # define htonll(x) (x) | |
| 570 # else /* HOST_BIG_ENDIAN */ | |
| 571 /* For these systems, we must reverse the bytes. Use ntohl and htonl on sub-32 blocs, and inverse these blocs. */ | |
| 572 # define ntohll(x) (typeof (x))( (((uint64_t)ntohl( (uint32_t)(x))) << 32 ) | ((uint64_t) ntohl( ((uint64_t)(x)) >> 32 ))) | |
| 573 # define htonll(x) (typeof (x))( (((uint64_t)htonl( (uint32_t)(x))) << 32 ) | ((uint64_t) htonl( ((uint64_t)(x)) >> 32 ))) | |
| 574 # endif /* HOST_BIG_ENDIAN */ | |
| 575 #endif /* HAVE_NTOHLL */ | |
| 576 | |
|
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577 /* This macro will give the next multiple of 4 for an integer (used for padding sizes of AVP). */ |
| 0 | 578 #define PAD4(_x) ((_x) + ( (4 - (_x)) & 3 ) ) |
| 579 | |
|
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580 /* Useful to display any value as (safe) ASCII (will garbage UTF-8 output...) */ |
| 0 | 581 #define ASCII(_c) ( ((_c < 32) || (_c > 127)) ? ( _c ? '?' : ' ' ) : _c ) |
| 582 | |
| 583 /* Compare timespec structures */ | |
| 584 #define TS_IS_INFERIOR( ts1, ts2 ) \ | |
| 585 ( ((ts1)->tv_sec < (ts2)->tv_sec ) \ | |
|
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586 || (((ts1)->tv_sec == (ts2)->tv_sec ) && ((ts1)->tv_nsec < (ts2)->tv_nsec) )) |
| 0 | 587 |
|
542
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588 /* This gives a good size for buffered reads */ |
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589 #ifndef BUFSIZ |
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590 #define BUFSIZ 96 |
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591 #endif /* BUFSIZ */ |
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592 |
|
618
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593 #endif /* !SWIG */ |
| 0 | 594 |
|
25
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595 |
| 0 | 596 /*============================================================*/ |
| 597 /* THREADS */ | |
| 598 /*============================================================*/ | |
|
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599 #ifndef SWIG |
| 0 | 600 |
| 601 /* Terminate a thread */ | |
| 602 static __inline__ int fd_thr_term(pthread_t * th) | |
| 603 { | |
| 604 void * th_ret = NULL; | |
| 605 | |
| 606 CHECK_PARAMS(th); | |
| 607 | |
| 608 /* Test if it was already terminated */ | |
| 609 if (*th == (pthread_t)NULL) | |
| 610 return 0; | |
| 611 | |
| 612 /* Cancel the thread if it is still running - ignore error if it was already terminated */ | |
| 613 (void) pthread_cancel(*th); | |
| 614 | |
| 615 /* Then join the thread */ | |
|
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616 CHECK_POSIX( pthread_join(*th, &th_ret) ); |
| 0 | 617 |
|
181
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618 if (th_ret == PTHREAD_CANCELED) { |
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619 TRACE_DEBUG(ANNOYING, "The thread %p was canceled", *th); |
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620 } else { |
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621 TRACE_DEBUG(CALL, "The thread %p returned %x", *th, th_ret); |
| 0 | 622 } |
| 623 | |
| 624 /* Clean the location */ | |
| 625 *th = (pthread_t)NULL; | |
| 626 | |
|
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627 return 0; |
| 0 | 628 } |
| 629 | |
|
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630 /* Force flushing the cache of a CPU before reading a shared memory area (use only for atomic reads such as int and void*) */ |
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631 extern pthread_mutex_t fd_cpu_mtx_dummy; /* only for the macro bellow, so that we have reasonably fresh pir_state value when needed */ |
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632 #define fd_cpu_flush_cache() { \ |
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633 (void)pthread_mutex_lock(&fd_cpu_mtx_dummy); \ |
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634 (void)pthread_mutex_unlock(&fd_cpu_mtx_dummy); \ |
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635 } |
|
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636 |
|
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637 |
|
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638 /************* |
|
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639 Cancelation cleanup handlers for common objects |
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640 *************/ |
| 0 | 641 static __inline__ void fd_cleanup_mutex( void * mutex ) |
| 642 { | |
| 643 CHECK_POSIX_DO( pthread_mutex_unlock((pthread_mutex_t *)mutex), /* */); | |
| 644 } | |
| 645 | |
| 646 static __inline__ void fd_cleanup_rwlock( void * rwlock ) | |
| 647 { | |
| 648 CHECK_POSIX_DO( pthread_rwlock_unlock((pthread_rwlock_t *)rwlock), /* */); | |
| 649 } | |
| 650 | |
| 651 static __inline__ void fd_cleanup_buffer( void * buffer ) | |
| 652 { | |
| 653 free(buffer); | |
| 654 } | |
|
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655 static __inline__ void fd_cleanup_socket(void * sockptr) |
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656 { |
|
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657 if (sockptr && (*(int *)sockptr > 0)) { |
| 179 | 658 CHECK_SYS_DO( close(*(int *)sockptr), /* ignore */ ); |
| 184 | 659 *(int *)sockptr = -1; |
|
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660 } |
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661 } |
|
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662 #endif /* !SWIG */ |
| 0 | 663 |
| 664 /*============================================================*/ | |
|
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665 /* SIGNALS */ |
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666 /*============================================================*/ |
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667 |
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668 /* Register a new callback to be called on reception of a given signal (it receives the signal as parameter) */ |
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669 /* EALREADY will be returned if there is already a callback registered on this signal */ |
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670 /* NOTE: the signal handler will be called from a new detached thread */ |
|
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671 #ifndef SWIG |
|
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672 int fd_sig_register(int signal, char * modname, void (*callback)(int signal)); |
|
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673 #endif /* !SWIG */ |
|
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674 |
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675 /* Remove the handler for a given signal */ |
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676 int fd_sig_unregister(int signal); |
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677 |
|
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678 /* Dump list of handlers */ |
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679 void fd_sig_dump(int level, int indent); |
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680 |
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681 /* Name of signals */ |
|
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Remove dependency on signalent.h
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682 const char * fd_sig_abbrev(int signal); |
|
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683 |
|
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684 |
|
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685 /*============================================================*/ |
| 0 | 686 /* LISTS */ |
| 687 /*============================================================*/ | |
| 688 | |
| 689 /* The following structure represents a chained list element */ | |
| 690 struct fd_list { | |
| 691 struct fd_list *next; /* next element in the list */ | |
| 692 struct fd_list *prev; /* previous element in the list */ | |
| 693 struct fd_list *head; /* head of the list */ | |
|
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694 void *o; /* additional pointer, used for any purpose (ex: start of the parent object) */ |
| 0 | 695 }; |
| 696 | |
| 697 /* Initialize a list element */ | |
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698 #define FD_LIST_INITIALIZER( _list_name ) \ |
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699 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = NULL } |
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700 #define FD_LIST_INITIALIZER_O( _list_name, _obj ) \ |
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701 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = _obj } |
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702 void fd_list_init ( struct fd_list * list, void * obj ); |
| 0 | 703 |
| 704 /* Return boolean, true if the list is empty */ | |
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705 #define FD_IS_LIST_EMPTY( _list ) ((((struct fd_list *)(_list))->head == (_list)) && (((struct fd_list *)(_list))->next == (_list))) |
| 0 | 706 |
| 707 /* Insert an item in a list at known position */ | |
| 708 void fd_list_insert_after ( struct fd_list * ref, struct fd_list * item ); | |
| 709 void fd_list_insert_before ( struct fd_list * ref, struct fd_list * item ); | |
| 710 | |
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711 /* Move all elements from a list at the end of another */ |
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712 void fd_list_move_end(struct fd_list * ref, struct fd_list * senti); |
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713 |
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714 /* 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 | 715 int fd_list_insert_ordered( struct fd_list * head, struct fd_list * item, int (*cmp_fct)(void *, void *), void ** ref_duplicate); |
| 716 | |
| 717 /* Unlink an item from a list */ | |
| 718 void fd_list_unlink ( struct fd_list * item ); | |
| 719 | |
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720 |
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721 |
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722 /*============================================================*/ |
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723 /* HASH */ |
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724 /*============================================================*/ |
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725 |
| 0 | 726 /* Compute a hash value of a string (session id, diameter id, ...) */ |
| 727 uint32_t fd_hash ( char * string, size_t len ); | |
| 728 | |
| 729 | |
| 730 | |
| 731 /*============================================================*/ | |
| 732 /* DICTIONARY */ | |
| 733 /*============================================================*/ | |
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734 |
| 0 | 735 /* Structure that contains the complete dictionary definitions */ |
| 736 struct dictionary; | |
| 737 | |
| 738 /* Structure that contains a dictionary object */ | |
| 739 struct dict_object; | |
| 740 | |
| 741 /* Types of object in the dictionary. */ | |
| 742 enum dict_object_type { | |
| 743 DICT_VENDOR = 1, /* Vendor */ | |
| 744 DICT_APPLICATION, /* Diameter Application */ | |
| 745 DICT_TYPE, /* AVP data type */ | |
| 746 DICT_ENUMVAL, /* Named constant (value of an enumerated AVP type) */ | |
| 747 DICT_AVP, /* AVP */ | |
| 748 DICT_COMMAND, /* Diameter Command */ | |
| 749 DICT_RULE /* a Rule for AVP in command or grouped AVP */ | |
| 750 #define DICT_TYPE_MAX DICT_RULE | |
| 751 }; | |
| 752 | |
| 753 /* Initialize a dictionary */ | |
| 754 int fd_dict_init(struct dictionary ** dict); | |
| 755 /* Destroy a dictionary */ | |
| 756 int fd_dict_fini(struct dictionary ** dict); | |
| 757 | |
| 758 /* | |
| 759 * FUNCTION: fd_dict_new | |
| 760 * | |
| 761 * PARAMETERS: | |
| 762 * dict : Pointer to the dictionnary where the object is created | |
| 763 * type : What kind of object must be created | |
| 764 * data : pointer to the data for the object. | |
| 765 * type parameter is used to determine the type of data (see bellow for detail). | |
| 766 * parent : a reference to a parent object, if needed. | |
| 767 * ref : upon successful creation, reference to new object is stored here if !null. | |
| 768 * | |
| 769 * DESCRIPTION: | |
| 770 * Create a new object in the dictionary. | |
| 771 * See following object sections in this header file for more information on data and parent parameters format. | |
| 772 * | |
| 773 * RETURN VALUE: | |
| 774 * 0 : The object is created in the dictionary. | |
| 775 * EINVAL : A parameter is invalid. | |
| 776 * EEXIST : This object is already defined in the dictionary (with conflicting data). | |
| 777 * If "ref" is not NULL, it points to the existing element on return. | |
| 778 * (other standard errors may be returned, too, with their standard meaning. Example: | |
| 779 * ENOMEM : Memory allocation for the new object element failed.) | |
| 780 */ | |
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781 int fd_dict_new ( struct dictionary * dict, enum dict_object_type type, void * data, struct dict_object * parent, struct dict_object ** ref ); |
| 0 | 782 |
| 783 /* | |
| 784 * FUNCTION: fd_dict_search | |
| 785 * | |
| 786 * PARAMETERS: | |
| 787 * dict : Pointer to the dictionnary where the object is searched | |
| 788 * type : type of object that is being searched | |
| 789 * criteria : how the object must be searched. See object-related sections bellow for more information. | |
| 790 * what : depending on criteria, the data that must be searched. | |
| 791 * result : On successful return, pointer to the object is stored here. | |
| 792 * retval : this value is returned if the object is not found and result is not NULL. | |
| 793 * | |
| 794 * DESCRIPTION: | |
| 795 * Perform a search in the dictionary. | |
| 796 * See the object-specific sections bellow to find how to look for each objects. | |
| 797 * If the "result" parameter is NULL, the function is used to check if an object is in the dictionary. | |
| 798 * Otherwise, a reference to the object is stored in result if found. | |
| 799 * If result is not NULL and the object is not found, retval is returned (should be 0 or ENOENT usually) | |
| 800 * | |
| 801 * RETURN VALUE: | |
| 802 * 0 : The object has been found in the dictionary, or *result is NULL. | |
| 803 * EINVAL : A parameter is invalid. | |
| 804 * ENOENT : No matching object has been found, and result was NULL. | |
| 805 */ | |
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806 int fd_dict_search ( struct dictionary * dict, enum dict_object_type type, int criteria, void * what, struct dict_object ** result, int retval ); |
| 0 | 807 |
| 808 /* Special case: get the generic error command object */ | |
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809 int fd_dict_get_error_cmd(struct dictionary * dict, struct dict_object ** obj); |
| 0 | 810 |
| 811 /* | |
| 812 * FUNCTION: fd_dict_getval | |
| 813 * | |
| 814 * PARAMETERS: | |
| 815 * object : Pointer to a dictionary object. | |
| 816 * data : pointer to a structure to hold the data for the object. | |
| 817 * The type is the same as "data" parameter in fd_dict_new function. | |
| 818 * | |
| 819 * DESCRIPTION: | |
| 820 * Retrieve content of a dictionary object. | |
| 821 * See following object sections in this header file for more information on data and parent parameters format. | |
| 822 * | |
| 823 * RETURN VALUE: | |
| 824 * 0 : The content of the object has been retrieved. | |
| 825 * EINVAL : A parameter is invalid. | |
| 826 */ | |
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827 int fd_dict_getval ( struct dict_object * object, void * val); |
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828 int fd_dict_gettype ( struct dict_object * object, enum dict_object_type * type); |
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829 int fd_dict_getdict ( struct dict_object * object, struct dictionary ** dict); |
| 0 | 830 |
| 831 /* Debug functions */ | |
| 832 void fd_dict_dump_object(struct dict_object * obj); | |
| 833 void fd_dict_dump(struct dictionary * dict); | |
| 834 | |
| 835 /* | |
| 836 *************************************************************************** | |
| 837 * | |
| 838 * Vendor object | |
| 839 * | |
| 840 * These types are used to manage vendors in the dictionary | |
| 841 * | |
| 842 *************************************************************************** | |
| 843 */ | |
| 844 | |
| 845 /* Type to hold a Vendor ID: "SMI Network Management Private Enterprise Codes" (RFC3232) */ | |
| 846 typedef uint32_t vendor_id_t; | |
| 847 | |
| 848 /* Type to hold data associated to a vendor */ | |
| 849 struct dict_vendor_data { | |
| 850 vendor_id_t vendor_id; /* ID of a vendor */ | |
| 851 char *vendor_name; /* The name of this vendor */ | |
| 852 }; | |
| 853 | |
| 854 /* The criteria for searching a vendor object in the dictionary */ | |
| 855 enum { | |
| 856 VENDOR_BY_ID = 10, /* "what" points to a vendor_id_t */ | |
| 857 VENDOR_BY_NAME, /* "what" points to a string */ | |
| 858 VENDOR_OF_APPLICATION /* "what" points to a struct dict_object containing an application (see bellow) */ | |
| 859 }; | |
| 860 | |
| 861 /*** | |
| 862 * API usage : | |
| 863 | |
| 864 Note: the value of "vendor_name" is copied when the object is created, and the string may be disposed afterwards. | |
| 865 On the other side, when value is retrieved with dict_getval, the string is not copied and MUST NOT be freed. It will | |
| 866 be freed automatically along with the object itself with call to dict_fini later. | |
| 867 | |
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868 - fd_dict_new: |
| 0 | 869 The "parent" parameter is not used for vendors. |
| 870 Sample code to create a vendor: | |
| 871 { | |
| 872 int ret; | |
| 873 struct dict_object * myvendor; | |
| 874 struct dict_vendor_data myvendordata = { 23455, "my vendor name" }; -- just an example... | |
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875 ret = fd_dict_new ( dict, DICT_VENDOR, &myvendordata, NULL, &myvendor ); |
| 0 | 876 } |
| 877 | |
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878 - fd_dict_search: |
| 0 | 879 Sample codes to look for a vendor object, by its id or name: |
| 880 { | |
| 881 int ret; | |
| 882 struct dict_object * vendor_found; | |
| 883 vendor_id_t vendorid = 23455; | |
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884 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_ID, &vendorid, &vendor_found, ENOENT); |
| 0 | 885 - or - |
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886 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &vendor_found, ENOENT); |
| 0 | 887 } |
| 888 | |
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889 - fd_dict_getval: |
| 0 | 890 Sample code to retrieve the data from a vendor object: |
| 891 { | |
| 892 int ret; | |
| 893 struct dict_object * myvendor; | |
| 894 struct dict_vendor_data myvendordata; | |
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895 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &myvendor, ENOENT); |
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896 ret = fd_dict_getval ( myvendor, &myvendordata ); |
| 0 | 897 printf("my vendor id: %d\n", myvendordata.vendor_id ); |
| 898 } | |
| 899 | |
| 900 */ | |
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901 |
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902 /* Special function: */ |
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903 uint32_t * fd_dict_get_vendorid_list(struct dictionary * dict); |
| 0 | 904 |
| 905 /* | |
| 906 *************************************************************************** | |
| 907 * | |
| 908 * Application object | |
| 909 * | |
| 910 * These types are used to manage Diameter applications in the dictionary | |
| 911 * | |
| 912 *************************************************************************** | |
| 913 */ | |
| 914 | |
| 915 /* Type to hold a Diameter application ID: IANA assigned value for this application. */ | |
| 916 typedef uint32_t application_id_t; | |
| 917 | |
| 918 /* Type to hold data associated to an application */ | |
| 919 struct dict_application_data { | |
| 920 application_id_t application_id; /* ID of the application */ | |
| 921 char *application_name; /* The name of this application */ | |
| 922 }; | |
| 923 | |
| 924 /* The criteria for searching an application object in the dictionary */ | |
| 925 enum { | |
| 926 APPLICATION_BY_ID = 20, /* "what" points to a application_id_t */ | |
| 927 APPLICATION_BY_NAME, /* "what" points to a string */ | |
| 928 APPLICATION_OF_TYPE, /* "what" points to a struct dict_object containing a type object (see bellow) */ | |
| 929 APPLICATION_OF_COMMAND /* "what" points to a struct dict_object containing a command (see bellow) */ | |
| 930 }; | |
| 931 | |
| 932 /*** | |
| 933 * API usage : | |
| 934 | |
| 935 The "parent" parameter of dict_new may point to a vendor object to inform of what vendor defines the application. | |
| 936 for standard-track applications, the "parent" parameter should be NULL. | |
| 937 The vendor associated to an application is retrieved with VENDOR_OF_APPLICATION search criteria on vendors. | |
| 938 | |
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939 - fd_dict_new: |
| 0 | 940 Sample code for application creation: |
| 941 { | |
| 942 int ret; | |
| 943 struct dict_object * vendor; | |
| 944 struct dict_object * appl; | |
| 945 struct dict_vendor_data vendor_data = { | |
| 946 23455, | |
| 947 "my vendor name" | |
| 948 }; | |
| 949 struct dict_application_data app_data = { | |
| 950 9789, | |
| 951 "my vendor's application" | |
| 952 }; | |
| 953 | |
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954 ret = fd_dict_new ( dict, DICT_VENDOR, &vendor_data, NULL, &vendor ); |
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955 ret = fd_dict_new ( dict, DICT_APPLICATION, &app_data, vendor, &appl ); |
| 0 | 956 } |
| 957 | |
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958 - fd_dict_search: |
| 0 | 959 Sample code to retrieve the vendor of an application |
| 960 { | |
| 961 int ret; | |
| 962 struct dict_object * vendor, * appli; | |
| 963 | |
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964 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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965 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_OF_APPLICATION, appli, &vendor, ENOENT); |
| 0 | 966 } |
| 967 | |
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968 - fd_dict_getval: |
| 0 | 969 Sample code to retrieve the data from an application object: |
| 970 { | |
| 971 int ret; | |
| 972 struct dict_object * appli; | |
| 973 struct dict_application_data appl_data; | |
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974 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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975 ret = fd_dict_getval ( appli, &appl_data ); |
| 0 | 976 printf("my application id: %s\n", appl_data.application_id ); |
| 977 } | |
| 978 | |
| 979 */ | |
| 980 | |
| 981 /* | |
| 982 *************************************************************************** | |
| 983 * | |
| 984 * Type object | |
| 985 * | |
| 986 * These types are used to manage AVP data types in the dictionary | |
| 987 * | |
| 988 *************************************************************************** | |
| 989 */ | |
| 990 | |
| 991 /* Type to store any AVP value */ | |
| 992 union avp_value { | |
| 993 struct { | |
| 994 uint8_t *data; /* bytes buffer */ | |
| 995 size_t len; /* length of the data buffer */ | |
| 996 } os; /* Storage for an octet string, data is alloc'd and must be freed */ | |
| 997 int32_t i32; /* integer 32 */ | |
| 998 int64_t i64; /* integer 64 */ | |
| 999 uint32_t u32; /* unsigned 32 */ | |
| 1000 uint64_t u64; /* unsigned 64 */ | |
| 1001 float f32; /* float 32 */ | |
| 1002 double f64; /* float 64 */ | |
| 1003 }; | |
| 1004 | |
| 1005 /* These are the basic AVP types defined in RFC3588bis */ | |
| 1006 enum dict_avp_basetype { | |
| 1007 AVP_TYPE_GROUPED, | |
| 1008 AVP_TYPE_OCTETSTRING, | |
| 1009 AVP_TYPE_INTEGER32, | |
| 1010 AVP_TYPE_INTEGER64, | |
| 1011 AVP_TYPE_UNSIGNED32, | |
| 1012 AVP_TYPE_UNSIGNED64, | |
| 1013 AVP_TYPE_FLOAT32, | |
| 1014 AVP_TYPE_FLOAT64 | |
| 1015 #define AVP_TYPE_MAX AVP_TYPE_FLOAT64 | |
| 1016 }; | |
| 1017 | |
| 1018 /* Callbacks that can be associated with a derived type to easily interpret the AVP value. */ | |
| 1019 /* | |
| 1020 * CALLBACK: dict_avpdata_interpret | |
| 1021 * | |
| 1022 * PARAMETERS: | |
| 1023 * val : Pointer to the AVP value that must be interpreted. | |
| 1024 * interpreted : The result of interpretation is stored here. The format and meaning depends on each type. | |
| 1025 * | |
| 1026 * DESCRIPTION: | |
| 1027 * This callback can be provided with a derived type in order to facilitate the interpretation of formated data. | |
| 1028 * For example, when an AVP of type "Address" is received, it can be used to convert the octetstring into a struct sockaddr. | |
| 1029 * This callback is not called directly, but through the message's API msg_avp_value_interpret function. | |
| 1030 * | |
| 1031 * RETURN VALUE: | |
| 1032 * 0 : Operation complete. | |
| 1033 * !0 : An error occurred, the error code is returned. | |
| 1034 */ | |
| 1035 typedef int (*dict_avpdata_interpret) (union avp_value * value, void * interpreted); | |
| 1036 /* | |
| 1037 * CALLBACK: dict_avpdata_encode | |
| 1038 * | |
| 1039 * PARAMETERS: | |
| 1040 * data : The formated data that must be stored in the AVP value. | |
| 1041 * val : Pointer to the AVP value storage area where the data must be stored. | |
| 1042 * | |
| 1043 * DESCRIPTION: | |
| 1044 * This callback can be provided with a derived type in order to facilitate the encoding of formated data. | |
| 1045 * For example, it can be used to convert a struct sockaddr in an AVP value of type Address. | |
| 1046 * This callback is not called directly, but through the message's API msg_avp_value_encode function. | |
| 1047 * If the callback is defined for an OctetString based type, the created string must be malloc'd. free will be called | |
| 1048 * automatically later. | |
| 1049 * | |
| 1050 * RETURN VALUE: | |
| 1051 * 0 : Operation complete. | |
| 1052 * !0 : An error occurred, the error code is returned. | |
| 1053 */ | |
| 1054 typedef int (*dict_avpdata_encode) (void * data, union avp_value * val); | |
| 1055 | |
| 1056 | |
| 1057 /* Type to hold data associated to a derived AVP data type */ | |
| 1058 struct dict_type_data { | |
| 1059 enum dict_avp_basetype type_base; /* How the data of such AVP must be interpreted */ | |
| 1060 char *type_name; /* The name of this type */ | |
| 1061 dict_avpdata_interpret type_interpret;/* cb to convert the AVP value in more comprehensive format (or NULL) */ | |
| 1062 dict_avpdata_encode type_encode; /* cb to convert formatted data into an AVP value (or NULL) */ | |
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1063 void (*type_dump)(union avp_value * val); /* cb called by fd_msg_dump_one for this type of data (if != NULL), to dump the AVP value in debug */ |
| 0 | 1064 }; |
| 1065 | |
| 1066 /* The criteria for searching a type object in the dictionary */ | |
| 1067 enum { | |
| 1068 TYPE_BY_NAME = 30, /* "what" points to a string */ | |
| 1069 TYPE_OF_ENUMVAL, /* "what" points to a struct dict_object containing an enumerated constant (DICT_ENUMVAL, see bellow). */ | |
| 1070 TYPE_OF_AVP /* "what" points to a struct dict_object containing an AVP object. */ | |
| 1071 }; | |
| 1072 | |
| 1073 | |
| 1074 /*** | |
| 1075 * API usage : | |
| 1076 | |
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1077 - fd_dict_new: |
| 0 | 1078 The "parent" parameter may point to an application object, when a type is defined by a Diameter application. |
| 1079 | |
| 1080 Sample code: | |
| 1081 { | |
| 1082 int ret; | |
| 1083 struct dict_object * mytype; | |
| 1084 struct dict_type_data mytypedata = | |
| 1085 { | |
| 1086 AVP_TYPE_OCTETSTRING, | |
| 1087 "Address", | |
| 1088 NULL, | |
| 1089 NULL | |
| 1090 }; | |
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1091 ret = fd_dict_new ( dict, DICT_TYPE, &mytypedata, NULL, &mytype ); |
| 0 | 1092 } |
| 1093 | |
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1094 - fd_dict_search: |
| 0 | 1095 Sample code: |
| 1096 { | |
| 1097 int ret; | |
| 1098 struct dict_object * address_type; | |
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1099 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Address", &address_type, ENOENT); |
| 0 | 1100 } |
| 1101 | |
| 1102 */ | |
| 1103 | |
| 1104 /* | |
| 1105 *************************************************************************** | |
| 1106 * | |
| 1107 * Enumerated values object | |
| 1108 * | |
| 1109 * These types are used to manage named constants of some AVP, | |
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1110 * for enumerated types. freeDiameter allows constants for types others than Unsigned32 |
| 0 | 1111 * |
| 1112 *************************************************************************** | |
| 1113 */ | |
| 1114 | |
| 1115 /* Type to hold data of named constants for AVP */ | |
| 1116 struct dict_enumval_data { | |
| 1117 char *enum_name; /* The name of this constant */ | |
| 1118 union avp_value enum_value; /* Value of the constant. Union term depends on parent type's base type. */ | |
| 1119 }; | |
| 1120 | |
| 1121 /* The criteria for searching a constant in the dictionary */ | |
| 1122 enum { | |
| 1123 ENUMVAL_BY_STRUCT = 40, /* "what" points to a struct dict_enumval_request as defined bellow */ | |
| 1124 }; | |
| 1125 | |
| 1126 struct dict_enumval_request { | |
| 1127 /* Identifier of the parent type, one of the following must not be NULL */ | |
| 1128 struct dict_object *type_obj; | |
| 1129 char *type_name; | |
| 1130 | |
| 1131 /* Search criteria for the constant */ | |
| 1132 struct dict_enumval_data search; /* search.enum_value is used only if search.enum_name == NULL */ | |
| 1133 }; | |
| 1134 | |
| 1135 /*** | |
| 1136 * API usage : | |
| 1137 | |
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1138 - fd_dict_new: |
| 0 | 1139 The "parent" parameter must point to a derived type object. |
| 1140 Sample code to create a type "Boolean" with two constants "True" and "False": | |
| 1141 { | |
| 1142 int ret; | |
| 1143 struct dict_object * type_boolean; | |
| 1144 struct dict_type_data type_boolean_data = | |
| 1145 { | |
| 1146 AVP_TYPE_INTEGER32, | |
| 1147 "Boolean", | |
| 1148 NULL, | |
| 1149 NULL | |
| 1150 }; | |
| 1151 struct dict_enumval_data boolean_false = | |
| 1152 { | |
| 1153 .enum_name="False", | |
| 1154 .enum_value.i32 = 0 | |
| 1155 }; | |
| 1156 struct dict_enumval_data boolean_true = | |
| 1157 { | |
| 1158 .enum_name="True", | |
| 1159 .enum_value.i32 = -1 | |
| 1160 }; | |
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1161 ret = fd_dict_new ( dict, DICT_TYPE, &type_boolean_data, NULL, &type_boolean ); |
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1162 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_false, type_boolean, NULL ); |
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1163 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_true , type_boolean, NULL ); |
| 0 | 1164 |
| 1165 } | |
| 1166 | |
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1167 - fd_dict_search: |
| 0 | 1168 Sample code to look for a constant name, by its value: |
| 1169 { | |
| 1170 int ret; | |
| 1171 struct dict_object * value_found; | |
| 1172 struct dict_enumval_request boolean_by_value = | |
| 1173 { | |
| 1174 .type_name = "Boolean", | |
| 1175 .search.enum_name=NULL, | |
| 1176 .search.enum_value.i32 = -1 | |
| 1177 }; | |
| 1178 | |
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1179 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
| 0 | 1180 } |
| 1181 | |
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1182 - fd_dict_getval: |
| 0 | 1183 Sample code to retrieve the data from a constant object: |
| 1184 { | |
| 1185 int ret; | |
| 1186 struct dict_object * value_found; | |
| 1187 struct dict_enumval_data boolean_data = NULL; | |
| 1188 struct dict_enumval_request boolean_by_value = | |
| 1189 { | |
| 1190 .type_name = "Boolean", | |
| 1191 .search.enum_name=NULL, | |
| 1192 .search.enum_value.i32 = 0 | |
| 1193 }; | |
| 1194 | |
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1195 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
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1196 ret = fd_dict_getval ( value_found, &boolean_data ); |
| 0 | 1197 printf(" Boolean with value 0: %s", boolean_data.enum_name ); |
| 1198 } | |
| 1199 */ | |
| 1200 | |
| 1201 /* | |
| 1202 *************************************************************************** | |
| 1203 * | |
| 1204 * AVP object | |
| 1205 * | |
| 1206 * These objects are used to manage AVP definitions in the dictionary | |
| 1207 * | |
| 1208 *************************************************************************** | |
| 1209 */ | |
| 1210 | |
| 1211 /* Type to hold an AVP code. For vendor 0, these codes are assigned by IANA. Otherwise, it is managed by the vendor */ | |
| 1212 typedef uint32_t avp_code_t; | |
| 1213 | |
| 1214 /* Values of AVP flags */ | |
| 1215 #define AVP_FLAG_VENDOR 0x80 | |
| 1216 #define AVP_FLAG_MANDATORY 0x40 | |
| 1217 #define AVP_FLAG_RESERVED3 0x20 | |
| 1218 #define AVP_FLAG_RESERVED4 0x10 | |
| 1219 #define AVP_FLAG_RESERVED5 0x08 | |
| 1220 #define AVP_FLAG_RESERVED6 0x04 | |
| 1221 #define AVP_FLAG_RESERVED7 0x02 | |
| 1222 #define AVP_FLAG_RESERVED8 0x01 | |
| 1223 | |
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1224 /* For dumping flags and values */ |
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1225 #define DUMP_AVPFL_str "%c%c" |
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1226 #define DUMP_AVPFL_val(_val) (_val & AVP_FLAG_VENDOR)?'V':'-' , (_val & AVP_FLAG_MANDATORY)?'M':'-' |
| 0 | 1227 |
| 1228 /* Type to hold data associated to an avp */ | |
| 1229 struct dict_avp_data { | |
| 1230 avp_code_t avp_code; /* Code of the avp */ | |
| 1231 vendor_id_t avp_vendor; /* Vendor of the AVP, or 0 */ | |
| 1232 char *avp_name; /* Name of this AVP */ | |
| 1233 uint8_t avp_flag_mask; /* Mask of fixed AVP flags */ | |
| 1234 uint8_t avp_flag_val; /* Values of the fixed flags */ | |
| 1235 enum dict_avp_basetype avp_basetype; /* Basic type of data found in the AVP */ | |
| 1236 }; | |
| 1237 | |
| 1238 /* The criteria for searching an avp object in the dictionary */ | |
| 1239 enum { | |
| 1240 AVP_BY_CODE = 50, /* "what" points to an avp_code_t, vendor is always 0 */ | |
| 1241 AVP_BY_NAME, /* "what" points to a string, vendor is always 0 */ | |
| 1242 AVP_BY_CODE_AND_VENDOR, /* "what" points to a struct dict_avp_request (see bellow), where avp_vendor and avp_code are set */ | |
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1243 AVP_BY_NAME_AND_VENDOR, /* "what" points to a struct dict_avp_request (see bellow), where avp_vendor and avp_name are set */ |
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1244 AVP_BY_NAME_ALL_VENDORS /* "what" points to a string. Might be quite slow... */ |
| 0 | 1245 }; |
| 1246 | |
| 1247 /* Struct used for some researchs */ | |
| 1248 struct dict_avp_request { | |
| 1249 vendor_id_t avp_vendor; | |
| 1250 avp_code_t avp_code; | |
| 1251 char *avp_name; | |
| 1252 }; | |
| 1253 | |
| 1254 | |
| 1255 /*** | |
| 1256 * API usage : | |
| 1257 | |
| 1258 If "parent" parameter is not NULL during AVP creation, it must point to a DICT_TYPE object. | |
| 1259 The extended type is then attached to the AVP. In case where it is an enumerated type, the value of | |
| 1260 AVP is automatically interpreted in debug messages, and in message checks. | |
| 1261 The derived type of an AVP can be retrieved with: dict_search ( DICT_TYPE, TYPE_OF_AVP, avp, ... ) | |
| 1262 | |
| 1263 To create the rules (ABNF) for children of Grouped AVP, see the DICT_RULE related part. | |
| 1264 | |
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1265 - fd_dict_new: |
| 0 | 1266 Sample code for AVP creation: |
| 1267 { | |
| 1268 int ret; | |
| 1269 struct dict_object * user_name_avp; | |
| 1270 struct dict_object * boolean_type; | |
| 1271 struct dict_object * sample_boolean_avp; | |
| 1272 struct dict_avp_data user_name_data = { | |
| 1273 1, // code | |
| 1274 0, // vendor | |
| 1275 "User-Name", // name | |
| 1276 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 | |
| 1277 AVP_FLAG_MANDATORY, // the V flag must be cleared, the M flag must be set. | |
| 1278 AVP_TYPE_OCTETSTRING // User-Name AVP contains OctetString data (further precision such as UTF8String can be given with a parent derived type) | |
| 1279 }; | |
| 1280 struct dict_avp_data sample_boolean_data = { | |
| 1281 31337, | |
| 1282 23455, | |
| 1283 "Sample-Boolean", | |
| 1284 AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, | |
| 1285 AVP_FLAG_VENDOR, | |
| 1286 AVP_TYPE_INTEGER32 // This MUST be the same as parent type's | |
| 1287 }; | |
| 1288 | |
| 1289 -- Create an AVP with a base type -- | |
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1290 ret = fd_dict_new ( dict, DICT_AVP, &user_name_data, NULL, &user_name_avp ); |
| 0 | 1291 |
| 1292 -- Create an AVP with a derived type -- | |
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1293 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Boolean", &boolean_type, ENOENT); |
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1294 ret = fd_dict_new ( dict, DICT_AVP, &sample_boolean_data , boolean_type, &sample_boolean_avp ); |
| 0 | 1295 |
| 1296 } | |
| 1297 | |
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1298 - fd_dict_search: |
| 0 | 1299 Sample code to look for an AVP |
| 1300 { | |
| 1301 int ret; | |
| 1302 struct dict_object * avp_username; | |
| 1303 struct dict_object * avp_sampleboolean; | |
| 1304 struct dict_avp_request avpvendorboolean = | |
| 1305 { | |
| 1306 .avp_vendor = 23455, | |
| 1307 .avp_name = "Sample-Boolean" | |
| 1308 }; | |
| 1309 | |
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1310 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
| 0 | 1311 |
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1312 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME_AND_VENDOR, &avpvendorboolean, &avp_sampleboolean, ENOENT); |
| 0 | 1313 |
| 1314 } | |
| 1315 | |
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1316 - fd_dict_getval: |
| 0 | 1317 Sample code to retrieve the data from an AVP object: |
| 1318 { | |
| 1319 int ret; | |
| 1320 struct dict_object * avp_username; | |
| 1321 struct dict_avp_data user_name_data; | |
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1322 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
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1323 ret = fd_dict_getval ( avp_username, &user_name_data ); |
| 0 | 1324 printf("User-Name code: %d\n", user_name_data.avp_code ); |
| 1325 } | |
| 1326 | |
| 1327 */ | |
| 1328 | |
| 1329 /* | |
| 1330 *************************************************************************** | |
| 1331 * | |
| 1332 * Command object | |
| 1333 * | |
| 1334 * These types are used to manage commands objects in the dictionary | |
| 1335 * | |
| 1336 *************************************************************************** | |
| 1337 */ | |
| 1338 | |
| 1339 /* Type to hold a Diameter command code: IANA assigned values. 0x0-0x7fffff=standard, 0x800000-0xfffffd=vendors, 0xfffffe-0xffffff=experimental */ | |
| 1340 typedef uint32_t command_code_t; | |
| 1341 | |
| 1342 /* Values of command flags */ | |
| 1343 #define CMD_FLAG_REQUEST 0x80 | |
| 1344 #define CMD_FLAG_PROXIABLE 0x40 | |
| 1345 #define CMD_FLAG_ERROR 0x20 | |
| 1346 #define CMD_FLAG_RETRANSMIT 0x10 | |
| 1347 #define CMD_FLAG_RESERVED5 0x08 | |
| 1348 #define CMD_FLAG_RESERVED6 0x04 | |
| 1349 #define CMD_FLAG_RESERVED7 0x02 | |
| 1350 #define CMD_FLAG_RESERVED8 0x01 | |
| 1351 | |
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1352 /* For dumping flags and values */ |
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1353 #define DUMP_CMDFL_str "%c%c%c%c" |
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1354 #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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1355 |
| 0 | 1356 /* Type to hold data associated to a command */ |
| 1357 struct dict_cmd_data { | |
| 1358 command_code_t cmd_code; /* code of the command */ | |
| 1359 char *cmd_name; /* Name of the command */ | |
| 1360 uint8_t cmd_flag_mask; /* Mask of fixed-value flags */ | |
| 1361 uint8_t cmd_flag_val; /* values of the fixed flags */ | |
| 1362 }; | |
| 1363 | |
| 1364 /* The criteria for searching an avp object in the dictionary */ | |
| 1365 enum { | |
| 1366 CMD_BY_NAME = 60, /* "what" points to a string */ | |
| 1367 CMD_BY_CODE_R, /* "what" points to a command_code_t. The "Request" command is returned. */ | |
| 1368 CMD_BY_CODE_A, /* "what" points to a command_code_t. The "Answer" command is returned. */ | |
| 1369 CMD_ANSWER /* "what" points to a struct dict_object of a request command. The corresponding "Answer" command is returned. */ | |
| 1370 }; | |
| 1371 | |
| 1372 | |
| 1373 /*** | |
| 1374 * API usage : | |
| 1375 | |
| 1376 The "parent" parameter of dict_new may point to an application object to inform of what application defines the command. | |
| 1377 The application associated to a command is retrieved with APPLICATION_OF_COMMAND search criteria on applications. | |
| 1378 | |
| 1379 To create the rules for children of commands, see the DICT_RULE related part. | |
| 1380 | |
| 1381 Note that the "Request" and "Answer" commands are two independant objects. This allows to have different rules for each. | |
| 1382 | |
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1383 - fd_dict_new: |
| 0 | 1384 Sample code for command creation: |
| 1385 { | |
| 1386 int ret; | |
| 1387 struct dict_object * cer; | |
| 1388 struct dict_object * cea; | |
| 1389 struct dict_cmd_data ce_data = { | |
| 1390 257, // code | |
| 1391 "Capabilities-Exchange-Request", // name | |
| 1392 CMD_FLAG_REQUEST, // mask | |
| 1393 CMD_FLAG_REQUEST // value. Only the "R" flag is constrained here, set. | |
| 1394 }; | |
| 1395 | |
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1396 ret = fd_dict_new (dict, DICT_COMMAND, &ce_data, NULL, &cer ); |
| 0 | 1397 |
| 1398 ce_data.cmd_name = "Capabilities-Exchange-Answer"; | |
| 1399 ce_data.cmd_flag_val = 0; // Same constraint on "R" flag, but this time it must be cleared. | |
| 1400 | |
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1401 ret = fd_dict_new ( dict, DICT_COMMAND, &ce_data, NULL, &cea ); |
| 0 | 1402 } |
| 1403 | |
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1404 - fd_dict_search: |
| 0 | 1405 Sample code to look for a command |
| 1406 { | |
| 1407 int ret; | |
| 1408 struct dict_object * cer, * cea; | |
| 1409 command_code_t code = 257; | |
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1410 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1411 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_CODE_R, &code, &cer, ENOENT); |
| 0 | 1412 } |
| 1413 | |
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1414 - fd_dict_getval: |
| 0 | 1415 Sample code to retrieve the data from a command object: |
| 1416 { | |
| 1417 int ret; | |
| 1418 struct dict_object * cer; | |
| 1419 struct dict_object * cea; | |
| 1420 struct dict_cmd_data cea_data; | |
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1421 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1422 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_ANSWER, cer, &cea, ENOENT); |
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1423 ret = fd_dict_getval ( cea, &cea_data ); |
| 0 | 1424 printf("Answer to CER: %s\n", cea_data.cmd_name ); |
| 1425 } | |
| 1426 | |
| 1427 */ | |
| 1428 | |
| 1429 /* | |
| 1430 *************************************************************************** | |
| 1431 * | |
| 1432 * Rule object | |
| 1433 * | |
| 1434 * These objects are used to manage rules in the dictionary (ABNF implementation) | |
| 1435 * This is used for checking messages validity (more powerful than a DTD) | |
| 1436 * | |
| 1437 *************************************************************************** | |
| 1438 */ | |
| 1439 | |
| 1440 /* This defines the kind of rule that is defined */ | |
| 1441 enum rule_position { | |
| 1442 RULE_FIXED_HEAD = 1, /* The AVP must be at the head of the group. The rule_order field is used to specify the position. */ | |
| 1443 RULE_REQUIRED, /* The AVP must be present in the parent, but its position is not defined. */ | |
| 1444 RULE_OPTIONAL, /* The AVP may be present in the message. Used to specify a max number of occurences for example */ | |
| 1445 RULE_FIXED_TAIL /* The AVP must be at the end of the group. The rule_order field is used to specify the position. */ | |
| 1446 }; | |
| 1447 | |
| 1448 /* Content of a RULE object data */ | |
| 1449 struct dict_rule_data { | |
| 1450 struct dict_object *rule_avp; /* Pointer to the AVP object that is concerned by this rule */ | |
| 1451 enum rule_position rule_position; /* The position in which the rule_avp must appear in the parent */ | |
| 1452 unsigned rule_order; /* for RULE_FIXED_* rules, the place. 1,2,3.. for HEAD rules; ...,3,2,1 for TAIL rules. */ | |
| 1453 int rule_min; /* Minimum number of occurences. -1 means "default": 0 for optional rules, 1 for other rules */ | |
| 1454 int rule_max; /* Maximum number of occurences. -1 means no maximum. 0 means the AVP is forbidden. */ | |
| 1455 }; | |
| 1456 | |
| 1457 /* The criteria for searching a rule in the dictionary */ | |
| 1458 enum { | |
| 1459 RULE_BY_AVP_AND_PARENT = 70 /* "what" points to a struct dict_rule_request -- see bellow. This is used to query "what is the rule for this AVP in this group?" */ | |
| 1460 }; | |
| 1461 | |
| 1462 /* Structure for querying the dictionary about a rule */ | |
| 1463 struct dict_rule_request { | |
| 1464 struct dict_object *rule_parent; /* The grouped avp or command to which the rule apply */ | |
| 1465 struct dict_object *rule_avp; /* The AVP concerned by this rule */ | |
| 1466 }; | |
| 1467 | |
| 1468 | |
| 1469 /*** | |
| 1470 * API usage : | |
| 1471 | |
| 1472 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). | |
| 1473 | |
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1474 - fd_dict_new: |
| 0 | 1475 Sample code for rule creation. Let's create the Proxy-Info grouped AVP for example. |
| 1476 { | |
| 1477 int ret; | |
| 1478 struct dict_object * proxy_info_avp; | |
| 1479 struct dict_object * proxy_host_avp; | |
| 1480 struct dict_object * proxy_state_avp; | |
| 1481 struct dict_object * diameteridentity_type; | |
| 1482 struct dict_rule_data rule_data; | |
| 1483 struct dict_type_data di_type_data = { AVP_TYPE_OCTETSTRING, "DiameterIdentity", NULL, NULL }; | |
| 1484 struct dict_avp_data proxy_info_data = { 284, 0, "Proxy-Info", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_GROUPED }; | |
| 1485 struct dict_avp_data proxy_host_data = { 280, 0, "Proxy-Host", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
| 1486 struct dict_avp_data proxy_state_data = { 33, 0, "Proxy-State",AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
| 1487 | |
| 1488 -- Create the parent AVP | |
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1489 ret = fd_dict_new ( dict, DICT_AVP, &proxy_info_data, NULL, &proxy_info_avp ); |
| 0 | 1490 |
| 1491 -- Create the first child AVP. | |
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1492 ret = fd_dict_new ( dict, DICT_TYPE, &di_type_data, NULL, &diameteridentity_type ); |
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1493 ret = fd_dict_new ( dict, DICT_AVP, &proxy_host_data, diameteridentity_type, &proxy_host_avp ); |
| 0 | 1494 |
| 1495 -- Create the other child AVP | |
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1496 ret = fd_dict_new ( dict, DICT_AVP, &proxy_state_data, NULL, &proxy_state_avp ); |
| 0 | 1497 |
| 1498 -- Now we can create the rules. Both children AVP are mandatory. | |
| 1499 rule_data.rule_position = RULE_REQUIRED; | |
| 1500 rule_data.rule_min = -1; | |
| 1501 rule_data.rule_max = -1; | |
| 1502 | |
| 1503 rule_data.rule_avp = proxy_host_avp; | |
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1504 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
| 0 | 1505 |
| 1506 rule_data.rule_avp = proxy_state_avp; | |
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1507 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
| 0 | 1508 } |
| 1509 | |
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1510 - fd_dict_search and fd_dict_getval are similar to previous examples. |
| 0 | 1511 |
| 1512 */ | |
| 1513 | |
| 1514 /* Define some hard-coded values */ | |
|
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1515 /* Application */ |
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1516 #define AI_RELAY 0xffffffff |
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1517 |
| 0 | 1518 /* Commands Codes */ |
| 1519 #define CC_CAPABILITIES_EXCHANGE 257 | |
| 1520 #define CC_RE_AUTH 258 | |
| 1521 #define CC_ACCOUNTING 271 | |
| 1522 #define CC_ABORT_SESSION 274 | |
| 1523 #define CC_SESSION_TERMINATION 275 | |
| 1524 #define CC_DEVICE_WATCHDOG 280 | |
| 1525 #define CC_DISCONNECT_PEER 282 | |
| 1526 | |
| 1527 /* AVPs (Vendor 0) */ | |
| 87 | 1528 #define AC_USER_NAME 1 |
| 0 | 1529 #define AC_PROXY_STATE 33 |
| 1530 #define AC_HOST_IP_ADDRESS 257 | |
| 1531 #define AC_AUTH_APPLICATION_ID 258 | |
| 1532 #define AC_ACCT_APPLICATION_ID 259 | |
| 1533 #define AC_VENDOR_SPECIFIC_APPLICATION_ID 260 | |
| 1534 #define AC_REDIRECT_HOST_USAGE 261 | |
| 1535 #define AC_REDIRECT_MAX_CACHE_TIME 262 | |
| 1536 #define AC_SESSION_ID 263 | |
| 1537 #define AC_ORIGIN_HOST 264 | |
| 1538 #define AC_SUPPORTED_VENDOR_ID 265 | |
| 1539 #define AC_VENDOR_ID 266 | |
| 1540 #define AC_FIRMWARE_REVISION 267 | |
| 1541 #define AC_RESULT_CODE 268 | |
| 1542 #define AC_PRODUCT_NAME 269 | |
| 1543 #define AC_DISCONNECT_CAUSE 273 | |
| 1544 #define ACV_DC_REBOOTING 0 | |
| 1545 #define ACV_DC_BUSY 1 | |
| 1546 #define ACV_DC_NOT_FRIEND 2 | |
| 1547 #define AC_ORIGIN_STATE_ID 278 | |
| 1548 #define AC_FAILED_AVP 279 | |
| 1549 #define AC_PROXY_HOST 280 | |
| 1550 #define AC_ERROR_MESSAGE 281 | |
| 1551 #define AC_ROUTE_RECORD 282 | |
| 1552 #define AC_DESTINATION_REALM 283 | |
| 1553 #define AC_PROXY_INFO 284 | |
| 1554 #define AC_REDIRECT_HOST 292 | |
| 1555 #define AC_DESTINATION_HOST 293 | |
| 1556 #define AC_ERROR_REPORTING_HOST 294 | |
| 1557 #define AC_ORIGIN_REALM 296 | |
| 1558 #define AC_INBAND_SECURITY_ID 299 | |
|
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1559 #define ACV_ISI_NO_INBAND_SECURITY 0 |
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1560 #define ACV_ISI_TLS 1 |
| 0 | 1561 |
| 1562 /* Error codes */ | |
| 1563 #define ER_DIAMETER_SUCCESS 2001 | |
| 1564 #define ER_DIAMETER_REALM_NOT_SERVED 3003 | |
| 1565 #define ER_DIAMETER_TOO_BUSY 3004 | |
| 1566 #define ER_DIAMETER_REDIRECT_INDICATION 3006 | |
|
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1567 #define ER_ELECTION_LOST 4003 |
| 0 | 1568 |
|
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1569 |
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1570 /*============================================================*/ |
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1571 /* SESSIONS */ |
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1572 /*============================================================*/ |
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1573 |
|
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1574 /* Modules that want to associate a state with a Session-Id must first register a handler of this type */ |
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1575 struct session_handler; |
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1576 |
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1577 /* This opaque structure represents a session associated with a Session-Id */ |
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1578 struct session; |
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1579 |
|
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1580 /* The state information that a module associate with a session -- each module defines its own data format */ |
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1581 typedef void session_state; |
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1582 |
|
453
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1583 /* The following function must be called to activate the session expiry mechanism */ |
|
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1584 #ifndef SWIG |
|
453
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1585 int fd_sess_start(void); |
|
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1586 #endif /* !SWIG */ |
|
453
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1587 |
|
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1588 /* |
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1589 * FUNCTION: fd_sess_handler_create |
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1590 * |
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1591 * PARAMETERS: |
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1592 * handler : location where the new handler must be stored. |
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1593 * cleanup : a callback function that must be called when the session with associated data is destroyed. |
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1594 * |
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1595 * DESCRIPTION: |
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1596 * Create a new session handler. This is needed by a module to associate a state with a session object. |
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1597 * The cleanup handler is called when the session timeout expires, or fd_sess_destroy is called. It must free |
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1598 * the state associated with the session, and eventually trig other actions (send a STR, ...). |
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1599 * |
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1600 * RETURN VALUE: |
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1601 * 0 : The new handler has been created. |
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1602 * EINVAL : A parameter is invalid. |
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1603 * ENOMEM : Not enough memory to complete the operation |
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1604 */ |
|
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1605 int fd_sess_handler_create_internal ( struct session_handler ** handler, void (*cleanup)(session_state * state, char * sid) ); |
|
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1606 /* Macro to avoid casting everywhere */ |
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1607 #define fd_sess_handler_create( _handler, _cleanup ) \ |
|
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|
1608 fd_sess_handler_create_internal( (_handler), (void (*)(session_state *, char *))(_cleanup) ) |
|
3
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|
1609 |
|
340
81821e9f6988
Fix issue on session cleanup callback parameters -- thanks Souheil for reporting.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
336
diff
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|
1610 |
|
3
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|
1611 /* |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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changeset
|
1612 * FUNCTION: fd_sess_handler_destroy |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1613 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1614 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1615 * handler : location of an handler created by fd_sess_handler_create. |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
changeset
|
1616 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1617 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1618 * This destroys a session handler (typically called when an application is shutting down). |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1619 * If sessions states are registered with this handler, the cleanup callback is called on them. |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1620 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1621 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1622 * 0 : The handler was destroyed. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1623 * EINVAL : A parameter is invalid. |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1624 * ENOMEM : Not enough memory to complete the operation |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1625 */ |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1626 int fd_sess_handler_destroy ( struct session_handler ** handler ); |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1627 |
|
2
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Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
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1
diff
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|
1628 |
|
d8ce06172629
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Sebastien Decugis <sdecugis@nict.go.jp>
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1
diff
changeset
|
1629 |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
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1
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|
1630 /* |
|
3
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|
1631 * FUNCTION: fd_sess_new |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1632 * |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1633 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
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changeset
|
1634 * session : The location where the session object will be created upon success. |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1635 * diamId : \0-terminated string containing a Diameter Identity. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1636 * opt : Additional string. Usage is described bellow. |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1637 * optlen : if opt is \0-terminated, this can be 0. Otherwise, the length of opt. |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1638 * |
|
ef303f1078ab
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1639 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1640 * Create a new session object. The Session-Id string associated with this session is generated as follow: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1641 * If diamId parameter is provided, the string is created according to the RFC: <diamId>;<high32>;<low32>[;opt] where |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1642 * diamId is a Diameter Identity. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1643 * high32 and low32 are the parts of a monotonic 64 bits counter initialized to (time, 0) at startup. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1644 * opt is an optional string that can be concatenated to the identifier. |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1645 * If diamId is NULL, the string is exactly the content of opt. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1646 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1647 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1648 * 0 : The session is created. |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1649 * EINVAL : A parameter is invalid. |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1650 * EALREADY : A session with the same name already exists (returned in *session) |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1651 * ENOMEM : Not enough memory to complete the operation |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1652 */ |
|
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
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|
1653 int fd_sess_new ( struct session ** session, char * diamId, char * opt, size_t optlen ); |
|
3
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Sebastien Decugis <sdecugis@nict.go.jp>
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|
1654 |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
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|
1655 /* |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1656 * FUNCTION: fd_sess_fromsid |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1657 * |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1658 * PARAMETERS: |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1659 * sid : pointer to a string containing a Session-Id (UTF-8). |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1660 * len : length of the sid string (which does not need to be '\0'-terminated) |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1661 * session : On success, pointer to the session object created / retrieved. |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1662 * new : if not NULL, set to 1 on return if the session object has been created, 0 if it was simply retrieved. |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
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1
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|
1663 * |
|
3
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parents:
2
diff
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|
1664 * DESCRIPTION: |
|
85
e5fcd672caff
Added new function to retrieve messages sessions easily
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
1665 * Retrieve a session object from a Session-Id string. In case no session object was previously existing with this |
|
3
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1666 * id, a new object is silently created (equivalent to fd_sess_new with flag SESSION_NEW_FULL). |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1667 * |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1668 * RETURN VALUE: |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1669 * 0 : The session parameter has been updated. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1670 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1671 * ENOMEM : Not enough memory to complete the operation |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1672 */ |
|
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
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618
diff
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|
1673 int fd_sess_fromsid ( char * sid, size_t len, struct session ** session, int * new); |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1674 |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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|
1675 /* |
|
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parents:
2
diff
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|
1676 * FUNCTION: fd_sess_getsid |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1677 * |
|
ef303f1078ab
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1678 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1679 * session : Pointer to a session object. |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1680 * sid : On success, the location of a (\0-terminated) string is stored here. |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
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1
diff
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|
1681 * |
|
3
ef303f1078ab
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2
diff
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|
1682 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1683 * Retrieve the session identifier (Session-Id) corresponding to a session object. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1684 * The returned sid is an UTF-8 string terminated by \0, suitable for calls to strlen and strcpy. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1685 * It may be used for example to set the value of an AVP. |
|
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1686 * Note that the sid string is not copied, just its reference... do not free it! |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
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1
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|
1687 * |
|
3
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2
diff
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|
1688 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1689 * 0 : The sid parameter has been updated. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
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|
1690 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1691 */ |
|
620
bc7328e600f0
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Sebastien Decugis <sdecugis@nict.go.jp>
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618
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|
1692 int fd_sess_getsid ( struct session * session, char ** sid ); |
|
3
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|
1693 |
|
ef303f1078ab
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|
1694 /* |
|
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|
1695 * FUNCTION: fd_sess_settimeout |
|
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2
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|
1696 * |
|
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|
1697 * PARAMETERS: |
|
ef303f1078ab
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|
1698 * session : The session for which to set the timeout. |
|
ef303f1078ab
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2
diff
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|
1699 * timeout : The date when the session times out. |
|
2
d8ce06172629
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1
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|
1700 * |
|
3
ef303f1078ab
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|
1701 * DESCRIPTION: |
|
ef303f1078ab
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2
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|
1702 * Set the lifetime for a given session object. This function may be |
|
ef303f1078ab
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|
1703 * called several times on the same object to update the timeout value. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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|
1704 * When the timeout date is reached, the cleanup handler of each |
|
ef303f1078ab
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parents:
2
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|
1705 * module that registered data with this session is called, then the |
|
ef303f1078ab
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|
1706 * session is cleared. |
|
2
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1
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|
1707 * |
|
3
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|
1708 * There is a possible race condition between cleanup of the session |
|
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2
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|
1709 * and use of its data; applications should ensure that they are not |
|
ef303f1078ab
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|
1710 * using data from a session that is about to expire / expired. |
|
2
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1
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|
1711 * |
|
3
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|
1712 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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2
diff
changeset
|
1713 * 0 : The session timeout has been updated. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1714 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1715 */ |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1716 int fd_sess_settimeout( struct session * session, const struct timespec * timeout ); |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1717 |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1718 /* |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1719 * FUNCTION: fd_sess_destroy |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1720 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1721 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1722 * session : Pointer to a session object. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1723 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1724 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1725 * Destroys a session an all associated data, if any. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1726 * Equivalent to a session timeout expired, but the effect is immediate. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1727 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1728 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1729 * 0 : The session no longer exists. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1730 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1731 */ |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1732 int fd_sess_destroy ( struct session ** session ); |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1733 |
|
6
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1734 /* |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1735 * FUNCTION: fd_sess_reclaim |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1736 * |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1737 * PARAMETERS: |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1738 * session : Pointer to a session object. |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1739 * |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1740 * DESCRIPTION: |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1741 * Destroys the resources of a session, only if no session_state is associated with it. |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1742 * |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1743 * RETURN VALUE: |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1744 * 0 : The session no longer exists. |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1745 * EINVAL : A parameter is invalid. |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1746 */ |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1747 int fd_sess_reclaim ( struct session ** session ); |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1748 |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1749 |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1750 |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1751 |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1752 /* |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1753 * FUNCTION: fd_sess_state_store |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1754 * |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1755 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1756 * handler : The handler with which the state is registered. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1757 * session : The session object with which the state is registered. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1758 * state : An application state (opaque data) to store with the session. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1759 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1760 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1761 * Stores an application state with a session. This state can later be retrieved |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1762 * with fd_sess_state_retrieve, or implicitly in the cleanup handler when the session |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1763 * is destroyed. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1764 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1765 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1766 * 0 : The state has been stored. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1767 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1768 * EALREADY : Data was already associated with this session and client. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1769 * ENOMEM : Not enough memory to complete the operation |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1770 */ |
|
6
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1771 int fd_sess_state_store_internal ( struct session_handler * handler, struct session * session, session_state ** state ); |
|
5
c2d2729e3603
Completed new session module tests; some bugs fixed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
3
diff
changeset
|
1772 #define fd_sess_state_store( _handler, _session, _state ) \ |
|
6
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1773 fd_sess_state_store_internal( (_handler), (_session), (void *)(_state) ) |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1774 |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1775 /* |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1776 * FUNCTION: fd_sess_state_retrieve |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1777 * |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1778 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1779 * handler : The handler with which the state was registered. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1780 * session : The session object with which the state was registered. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1781 * state : Location where the state must be saved if it is found. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1782 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1783 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1784 * Retrieves a state saved by fd_sess_state_store. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1785 * After this function has been called, the state is no longer associated with |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1786 * the session. A new call to fd_sess_state_store must be performed in order to |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1787 * store again the data with the session. |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1788 * |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1789 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1790 * 0 : *state is updated (NULL or points to the state if it was found). |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1791 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1792 */ |
|
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
1793 int fd_sess_state_retrieve_internal ( struct session_handler * handler, struct session * session, session_state ** state ); |
|
5
c2d2729e3603
Completed new session module tests; some bugs fixed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
3
diff
changeset
|
1794 #define fd_sess_state_retrieve( _handler, _session, _state ) \ |
|
6
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
1795 fd_sess_state_retrieve_internal( (_handler), (_session), (void *)(_state) ) |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1796 |
|
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1797 |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1798 /* For debug */ |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1799 void fd_sess_dump(int level, struct session * session); |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1800 void fd_sess_dump_hdl(int level, struct session_handler * handler); |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1801 |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1802 /*============================================================*/ |
|
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1803 /* ROUTING */ |
|
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1804 /*============================================================*/ |
|
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1805 |
|
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1806 /* The following functions are helpers for the routing module. |
|
168
6db078b955e3
Completed rt_default extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
156
diff
changeset
|
1807 The routing data is stored in the message itself. */ |
|
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1808 |
|
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1809 /* Structure that contains the routing data for a message */ |
|
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1810 struct rt_data; |
|
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1811 |
|
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1812 /* Following functions are helpers to create the routing data of a message */ |
|
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
1813 int fd_rtd_init(struct rt_data ** rtd); |
|
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1814 void fd_rtd_free(struct rt_data ** rtd); |
|
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1815 |
|
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
1816 /* Add a peer to the candidates list */ |
|
168
6db078b955e3
Completed rt_default extension
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parents:
156
diff
changeset
|
1817 int fd_rtd_candidate_add(struct rt_data * rtd, char * peerid, char * realm); |
|
83
c662d3eb6ff6
Started support for routing module
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1818 |
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1819 /* Remove a peer from the candidates (if it is found) */ |
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1820 void fd_rtd_candidate_del(struct rt_data * rtd, char * peerid, size_t sz /* if !0, peerid does not need to be \0 terminated */); |
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1821 |
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1822 /* Extract the list of valid candidates, and initialize their scores to 0 */ |
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1823 void fd_rtd_candidate_extract(struct rt_data * rtd, struct fd_list ** candidates, int ini_score); |
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1824 |
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1825 /* If a peer returned a protocol error for this message, save it so that we don't try to send it there again */ |
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1826 int fd_rtd_error_add(struct rt_data * rtd, char * sentto, uint8_t * origin, size_t originsz, uint32_t rcode); |
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1827 |
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1828 /* The extracted list items have the following structure: */ |
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1829 struct rtd_candidate { |
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1830 struct fd_list chain; /* link in the list returned by the previous fct */ |
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1831 char * diamid; /* the diameter Id of the peer */ |
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1832 char * realm; /* the diameter realm of the peer (if known) */ |
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1833 int score; /* the current routing score for this peer, see fd_rt_out_register definition for details */ |
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1834 }; |
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1835 |
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1836 /* Reorder the list of peers */ |
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1837 int fd_rtd_candidate_reorder(struct fd_list * candidates); |
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1838 |
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1839 /* 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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1840 /* Beware that this could lead to routing loops */ |
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1841 |
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1842 /*============================================================*/ |
| 0 | 1843 /* MESSAGES */ |
| 1844 /*============================================================*/ | |
| 1845 | |
| 1846 /* The following types are opaque */ | |
| 1847 struct msg; /* A message: command with children AVPs (possibly grand children) */ | |
| 1848 struct avp; /* AVP object */ | |
| 1849 | |
| 1850 /* Some details about chaining: | |
| 1851 * | |
| 1852 * A message is made of a header ( msg ) and 0 or more AVPs ( avp ). | |
| 1853 * The structure is a kind of tree, where some AVPs (grouped AVPs) can contain other AVPs. | |
| 1854 * Exemple: | |
| 1855 * msg | |
| 1856 * |-avp | |
| 1857 * |-gavp | |
| 1858 * | |-avp | |
| 1859 * | |-avp | |
| 1860 * | \-avp | |
| 1861 * |-avp | |
| 1862 * \-avp | |
| 1863 * | |
| 1864 */ | |
| 1865 | |
| 1866 /* The following type is used to point to either a msg or an AVP */ | |
| 1867 typedef void msg_or_avp; | |
| 1868 | |
| 1869 /* The Diameter protocol version */ | |
| 1870 #define DIAMETER_VERSION 1 | |
| 1871 | |
| 1872 /* In the two following types, some fields are marked (READONLY). | |
| 1873 * This means that the content of these fields will be overwritten by the daemon so modifying it is useless. | |
| 1874 */ | |
| 1875 | |
| 1876 /* The following structure represents the header of a message. All data is in host byte order. */ | |
| 1877 struct msg_hdr { | |
| 1878 uint8_t msg_version; /* (READONLY) Version of Diameter: must be DIAMETER_VERSION. */ | |
| 1879 uint32_t msg_length; /* (READONLY)(3 bytes) indicates the length of the message */ | |
| 1880 uint8_t msg_flags; /* Message flags: CMD_FLAG_* */ | |
| 1881 command_code_t msg_code; /* (3 bytes) the command-code. See dictionary-api.h for more detail */ | |
| 1882 application_id_t msg_appl; /* The application issuing this message */ | |
| 1883 uint32_t msg_hbhid; /* The Hop-by-Hop identifier of the message */ | |
| 1884 uint32_t msg_eteid; /* The End-to-End identifier of the message */ | |
| 1885 }; | |
| 1886 | |
| 1887 /* The following structure represents the visible content of an AVP. All data is in host byte order. */ | |
| 1888 struct avp_hdr { | |
| 1889 avp_code_t avp_code; /* the AVP Code */ | |
| 1890 uint8_t avp_flags; /* AVP_FLAG_* flags */ | |
| 1891 uint32_t avp_len; /* (READONLY)(Only 3 bytes are used) the length of the AVP as described in the RFC */ | |
| 1892 vendor_id_t avp_vendor; /* Only used if AVP_FLAG_VENDOR is present */ | |
| 1893 union avp_value *avp_value; /* pointer to the value of the AVP. NULL means that the value is not set / not understood. | |
| 1894 One should not directly change this value. Use the msg_avp_setvalue function instead. | |
| 1895 The content of the pointed structure can be changed directly, with this restriction: | |
| 1896 if the AVP is an OctetString, and you change the value of the pointer avp_value->os.data, then | |
| 1897 you must call free() on the previous value, and the new one must be free()-able. | |
| 1898 */ | |
| 1899 }; | |
| 1900 | |
| 1901 /* The following enum is used to browse inside message hierarchy (msg, gavp, avp) */ | |
| 1902 enum msg_brw_dir { | |
| 1903 MSG_BRW_NEXT = 1, /* Get the next element at the same level, or NULL if this is the last element. */ | |
| 1904 MSG_BRW_PREV, /* Get the previous element at the same level, or NULL if this is the first element. */ | |
| 1905 MSG_BRW_FIRST_CHILD, /* Get the first child AVP of this element, if any. */ | |
| 1906 MSG_BRW_LAST_CHILD, /* Get the last child AVP of this element, if any. */ | |
| 1907 MSG_BRW_PARENT, /* Get the parent element of this element, if any. Only the msg_t object has no parent. */ | |
| 1908 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. */ | |
| 1909 }; | |
| 1910 | |
| 1911 /* Some flags used in the functions bellow */ | |
| 1912 #define MSGFL_ALLOC_ETEID 0x01 /* When creating a message, a new end-to-end ID is allocated and set in the message */ | |
| 1913 #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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1914 #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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1915 #define MSGFL_MAX MSGFL_ANSW_NOSID /* The biggest valid flag value */ |
| 0 | 1916 |
| 1917 /**************************************************/ | |
| 1918 /* Message creation, manipulation, disposal */ | |
| 1919 /**************************************************/ | |
| 1920 /* | |
| 1921 * FUNCTION: fd_msg_avp_new | |
| 1922 * | |
| 1923 * PARAMETERS: | |
| 1924 * model : Pointer to a DICT_AVP dictionary object describing the avp to create, or NULL. | |
| 1925 * flags : Flags to use in creation (not used yet, should be 0). | |
| 1926 * avp : Upon success, pointer to the new avp is stored here. | |
| 1927 * | |
| 1928 * DESCRIPTION: | |
| 1929 * Create a new AVP instance. | |
| 1930 * | |
| 1931 * RETURN VALUE: | |
| 1932 * 0 : The AVP is created. | |
| 1933 * EINVAL : A parameter is invalid. | |
| 1934 * (other standard errors may be returned, too, with their standard meaning. Example: | |
| 1935 * ENOMEM : Memory allocation for the new avp failed.) | |
| 1936 */ | |
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1937 int fd_msg_avp_new ( struct dict_object * model, int flags, struct avp ** avp ); |
| 0 | 1938 |
| 1939 /* | |
| 1940 * FUNCTION: fd_msg_new | |
| 1941 * | |
| 1942 * PARAMETERS: | |
| 1943 * model : Pointer to a DICT_COMMAND dictionary object describing the message to create, or NULL. | |
| 1944 * flags : combination of MSGFL_* flags. | |
| 1945 * msg : Upon success, pointer to the new message is stored here. | |
| 1946 * | |
| 1947 * DESCRIPTION: | |
| 1948 * Create a new empty Diameter message. | |
| 1949 * | |
| 1950 * RETURN VALUE: | |
| 1951 * 0 : The message is created. | |
| 1952 * EINVAL : A parameter is invalid. | |
| 1953 * (other standard errors may be returned, too, with their standard meaning. Example: | |
| 1954 * ENOMEM : Memory allocation for the new message failed.) | |
| 1955 */ | |
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1956 int fd_msg_new ( struct dict_object * model, int flags, struct msg ** msg ); |
| 0 | 1957 |
| 1958 /* | |
| 1959 * FUNCTION: msg_new_answer_from_req | |
| 1960 * | |
| 1961 * PARAMETERS: | |
| 1962 * dict : Pointer to the dictionary containing the model of the query. | |
| 1963 * msg : The location of the query on function call. Updated by the location of answer message on return. | |
| 1964 * flag : Pass MSGFL_ANSW_ERROR to indicate if the answer is an error message (will set the 'E' bit) | |
| 1965 * | |
| 1966 * DESCRIPTION: | |
| 1967 * This function creates the empty answer message corresponding to a request. | |
| 1968 * The header is set properly (R flag, ccode, appid, hbhid, eteid) | |
| 1969 * The Session-Id AVP is copied if present. | |
| 1970 * The calling code should usually call fd_msg_rescode_set function on the answer. | |
| 1971 * Upon return, the original query may be retrieved by calling fd_msg_answ_getq on the message. | |
| 1972 * | |
| 1973 * RETURN VALUE: | |
| 1974 * 0 : Operation complete. | |
| 1975 * !0 : an error occurred. | |
| 1976 */ | |
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1977 int fd_msg_new_answer_from_req ( struct dictionary * dict, struct msg ** msg, int flag ); |
| 0 | 1978 |
| 1979 /* | |
| 1980 * FUNCTION: fd_msg_browse | |
| 1981 * | |
| 1982 * PARAMETERS: | |
| 1983 * reference : Pointer to a struct msg or struct avp. | |
| 1984 * dir : Direction for browsing | |
| 1985 * found : If not NULL, updated with the element that has been found, if any, or NULL if no element was found / an error occurred. | |
| 1986 * 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. | |
| 1987 * | |
| 1988 * DESCRIPTION: | |
| 1989 * Explore the content of a message object (hierarchy). If "found" is null, only error checking is performed. | |
| 1990 * If "depth" is provided, it is updated as follow on successful function return: | |
| 1991 * - not modified for MSG_BRW_NEXT and MSG_BRW_PREV. | |
| 1992 * - *depth = *depth + 1 for MSG_BRW_FIRST_CHILD and MSG_BRW_LAST_CHILD. | |
| 1993 * - *depth = *depth - 1 for MSG_BRW_PARENT. | |
| 1994 * - *depth = *depth + X for MSG_BRW_WALK, with X between 1 (returned the 1st child) and -N (returned the Nth parent's next). | |
| 1995 * | |
| 1996 * RETURN VALUE: | |
| 1997 * 0 : found has been updated (if non NULL). | |
| 1998 * EINVAL : A parameter is invalid. | |
| 1999 * ENOENT : No element has been found where requested, and "found" was NULL (otherwise, *found is set to NULL and 0 is returned). | |
| 2000 */ | |
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2001 int fd_msg_browse_internal ( msg_or_avp * reference, enum msg_brw_dir dir, msg_or_avp ** found, int * depth ); |
| 0 | 2002 /* Macro to avoid having to cast the third parameter everywhere */ |
| 2003 #define fd_msg_browse( ref, dir, found, depth ) \ | |
| 2004 fd_msg_browse_internal( (ref), (dir), (void *)(found), (depth) ) | |
| 2005 | |
| 2006 | |
| 2007 /* | |
| 2008 * FUNCTION: fd_msg_avp_add | |
| 2009 * | |
| 2010 * PARAMETERS: | |
| 2011 * reference : Pointer to a valid msg or avp. | |
| 2012 * dir : location where the new AVP should be inserted, relative to the reference. MSG_BRW_PARENT and MSG_BRW_WALK are not valid. | |
| 2013 * avp : pointer to the AVP object that must be inserted. | |
| 2014 * | |
| 2015 * DESCRIPTION: | |
| 2016 * Adds an AVP into an object that can contain it: grouped AVP or message. | |
|
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2017 * Note that the added AVP will be freed at the same time as the object it is added to, |
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2018 * so it should not be freed after the call to this function. |
| 0 | 2019 * |
| 2020 * RETURN VALUE: | |
| 2021 * 0 : The AVP has been added. | |
| 2022 * EINVAL : A parameter is invalid. | |
| 2023 */ | |
| 2024 int fd_msg_avp_add ( msg_or_avp * reference, enum msg_brw_dir dir, struct avp *avp); | |
| 2025 | |
| 2026 /* | |
| 2027 * FUNCTION: fd_msg_search_avp | |
| 2028 * | |
| 2029 * PARAMETERS: | |
| 2030 * msg : The message structure in which to search the AVP. | |
| 2031 * what : The dictionary model of the AVP to search. | |
| 2032 * avp : location where the AVP reference is stored if found. | |
| 2033 * | |
| 2034 * DESCRIPTION: | |
| 2035 * Search the first top-level AVP of a given model inside a message. | |
| 2036 * Note: only the first instance of the AVP is returned by this function. | |
| 2037 * Note: only top-level AVPs are searched, not inside grouped AVPs. | |
| 2038 * Use msg_browse if you need more advanced research features. | |
| 2039 * | |
| 2040 * RETURN VALUE: | |
| 2041 * 0 : The AVP has been found. | |
| 2042 * EINVAL : A parameter is invalid. | |
| 2043 * ENOENT : No AVP has been found, and "avp" was NULL (otherwise, *avp is set to NULL and 0 returned). | |
| 2044 */ | |
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2045 int fd_msg_search_avp ( struct msg * msg, struct dict_object * what, struct avp ** avp ); |
| 0 | 2046 |
| 2047 /* | |
| 2048 * FUNCTION: fd_msg_free | |
| 2049 * | |
| 2050 * PARAMETERS: | |
| 2051 * object : pointer to the message or AVP object that must be unlinked and freed. | |
| 2052 * | |
| 2053 * DESCRIPTION: | |
| 2054 * Unlink and free a message or AVP object and its children. | |
| 2055 * If the object is an AVP linked into a message, the AVP is removed before being freed. | |
| 2056 * | |
| 2057 * RETURN VALUE: | |
| 2058 * 0 : The message has been freed. | |
| 2059 * EINVAL : A parameter is invalid. | |
| 2060 */ | |
| 2061 int fd_msg_free ( msg_or_avp * object ); | |
| 2062 | |
| 2063 /***************************************/ | |
| 2064 /* Dump functions */ | |
| 2065 /***************************************/ | |
| 2066 /* | |
| 2067 * FUNCTION: fd_msg_dump_* | |
| 2068 * | |
| 2069 * PARAMETERS: | |
| 2070 * level : the log level (INFO, FULL, ...) at which the object is dumped | |
| 2071 * obj : A msg or avp object. | |
| 2072 * | |
| 2073 * DESCRIPTION: | |
| 2074 * These functions dump the content of a message to the debug log | |
| 2075 * either recursively or only the object itself. | |
| 2076 * | |
| 2077 * RETURN VALUE: | |
| 2078 * - | |
| 2079 */ | |
| 2080 void fd_msg_dump_walk ( int level, msg_or_avp *obj ); | |
| 2081 void fd_msg_dump_one ( int level, msg_or_avp *obj ); | |
| 2082 | |
| 2083 | |
| 2084 /*********************************************/ | |
| 2085 /* Message metadata management functions */ | |
| 2086 /*********************************************/ | |
| 2087 /* | |
| 2088 * FUNCTION: fd_msg_model | |
| 2089 * | |
| 2090 * PARAMETERS: | |
| 2091 * reference : Pointer to a valid msg or avp. | |
| 2092 * model : on success, pointer to the dictionary model of this command or AVP. NULL if the model is unknown. | |
| 2093 * | |
| 2094 * DESCRIPTION: | |
| 2095 * Retrieve the dictionary object describing this message or avp. If the object is unknown or the fd_msg_parse_dict has not been called, | |
| 2096 * *model is set to NULL. | |
| 2097 * | |
| 2098 * RETURN VALUE: | |
| 2099 * 0 : The model has been set. | |
| 2100 * EINVAL : A parameter is invalid. | |
| 2101 */ | |
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2102 int fd_msg_model ( msg_or_avp * reference, struct dict_object ** model ); |
| 0 | 2103 |
| 2104 /* | |
| 2105 * FUNCTION: fd_msg_hdr | |
| 2106 * | |
| 2107 * PARAMETERS: | |
| 2108 * msg : Pointer to a valid message object. | |
| 2109 * pdata : Upon success, pointer to the msg_hdr structure of this message. The fields may be modified. | |
| 2110 * | |
| 2111 * DESCRIPTION: | |
| 2112 * Retrieve location of modifiable section of a message. | |
| 2113 * | |
| 2114 * RETURN VALUE: | |
| 2115 * 0 : The location has been written. | |
| 2116 * EINVAL : A parameter is invalid. | |
| 2117 */ | |
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2118 int fd_msg_hdr ( struct msg *msg, struct msg_hdr ** pdata ); |
| 0 | 2119 |
| 2120 /* | |
| 2121 * FUNCTION: fd_msg_avp_hdr | |
| 2122 * | |
| 2123 * PARAMETERS: | |
| 2124 * avp : Pointer to a valid avp object. | |
| 2125 * pdata : Upon success, pointer to the avp_hdr structure of this avp. The fields may be modified. | |
| 2126 * | |
| 2127 * DESCRIPTION: | |
| 2128 * Retrieve location of modifiable data of an avp. | |
| 2129 * | |
| 2130 * RETURN VALUE: | |
| 2131 * 0 : The location has been written. | |
| 2132 * EINVAL : A parameter is invalid. | |
| 2133 */ | |
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2134 int fd_msg_avp_hdr ( struct avp *avp, struct avp_hdr ** pdata ); |
| 0 | 2135 |
| 2136 /* | |
| 2137 * FUNCTION: fd_msg_answ_associate, fd_msg_answ_getq, fd_msg_answ_detach | |
| 2138 * | |
| 2139 * PARAMETERS: | |
| 2140 * answer : the received answer message | |
| 2141 * query : the corresponding query that had been sent | |
| 2142 * | |
| 2143 * DESCRIPTION: | |
| 2144 * fd_msg_answ_associate associates a query msg with the received answer. | |
| 2145 * Query is retrieved with fd_msg_answ_getq. | |
| 2146 * If answer message is freed, the query is also freed. | |
| 2147 * If the msg_answ_detach function is called, the association is removed. | |
| 2148 * This is meant to be called from the daemon only. | |
| 2149 * | |
| 2150 * RETURN VALUE: | |
| 2151 * 0 : ok | |
| 2152 * EINVAL: a parameter is invalid | |
| 2153 */ | |
| 2154 int fd_msg_answ_associate( struct msg * answer, struct msg * query ); | |
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2155 int fd_msg_answ_getq ( struct msg * answer, struct msg ** query ); |
| 0 | 2156 int fd_msg_answ_detach ( struct msg * answer ); |
| 2157 | |
| 2158 /* | |
| 2159 * FUNCTION: fd_msg_anscb_associate, fd_msg_anscb_get | |
| 2160 * | |
| 2161 * PARAMETERS: | |
| 2162 * msg : the answer message | |
| 2163 * anscb : the callback to associate with the message | |
| 2164 * data : the data to pass to the callback | |
| 2165 * | |
| 2166 * DESCRIPTION: | |
| 2167 * Associate or retrieve a callback with an answer message. | |
| 2168 * This is meant to be called from the daemon only. | |
| 2169 * | |
| 2170 * RETURN VALUE: | |
| 2171 * 0 : ok | |
| 2172 * EINVAL: a parameter is invalid | |
| 2173 */ | |
|
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2174 #ifndef SWIG |
| 0 | 2175 int fd_msg_anscb_associate( struct msg * msg, void ( *anscb)(void *, struct msg **), void * data ); |
| 2176 int fd_msg_anscb_get ( struct msg * msg, void (**anscb)(void *, struct msg **), void ** data ); | |
|
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2177 #endif /* !SWIG */ |
| 0 | 2178 |
| 2179 /* | |
| 2180 * FUNCTION: fd_msg_rt_associate, fd_msg_rt_get | |
| 2181 * | |
| 2182 * PARAMETERS: | |
| 2183 * msg : the query message to be sent | |
| 2184 * list : the ordered list of possible next-peers | |
| 2185 * | |
| 2186 * DESCRIPTION: | |
| 2187 * Associate a routing list with a query, and retrieve it. | |
| 2188 * If the message is freed, the list is also freed. | |
| 2189 * | |
| 2190 * RETURN VALUE: | |
| 2191 * 0 : ok | |
| 2192 * EINVAL: a parameter is invalid | |
| 2193 */ | |
|
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2194 #ifndef SWIG |
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2195 int fd_msg_rt_associate( struct msg * msg, struct rt_data ** rtd ); |
|
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2196 #endif /* !SWIG */ |
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2197 int fd_msg_rt_get ( struct msg * msg, struct rt_data ** rtd ); |
| 0 | 2198 |
| 2199 /* | |
| 2200 * FUNCTION: fd_msg_is_routable | |
| 2201 * | |
| 2202 * PARAMETERS: | |
| 2203 * msg : A msg object. | |
| 2204 * | |
| 2205 * DESCRIPTION: | |
| 2206 * This function returns a boolean telling if a given message is routable in the Diameter network, | |
| 2207 * or if it is a local link message only (ex: CER/CEA, DWR/DWA, ...). | |
| 2208 * | |
| 2209 * RETURN VALUE: | |
| 2210 * 0 : The message is not routable / an error occurred. | |
| 2211 * 1 : The message is routable. | |
| 2212 */ | |
| 2213 int fd_msg_is_routable ( struct msg * msg ); | |
| 2214 | |
| 2215 /* | |
| 2216 * FUNCTION: fd_msg_source_(g/s)et | |
| 2217 * | |
| 2218 * PARAMETERS: | |
| 2219 * msg : A msg object. | |
| 2220 * diamid : The diameter id of the peer from which this message was received. | |
| 2221 * hash : The hash for the diamid value. | |
| 2222 * add_rr : if true, a Route-Record AVP is added to the message with content diamid. In that case, dict must be supplied. | |
| 2223 * dict : a dictionary with definition of Route-Record AVP (if add_rr is true) | |
| 2224 * | |
| 2225 * DESCRIPTION: | |
| 2226 * Store or retrieve the diameted id of the peer from which this message was received. | |
| 2227 * Will be used for example by the routing module to add the Route-Record AVP in forwarded requests, | |
| 2228 * or to direct answers to the appropriate peer. | |
| 2229 * | |
| 2230 * RETURN VALUE: | |
| 2231 * 0 : Operation complete. | |
| 2232 * !0 : an error occurred. | |
| 2233 */ | |
|
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2234 #ifndef SWIG |
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2235 int fd_msg_source_set( struct msg * msg, char * diamid, int add_rr, struct dictionary * dict ); |
|
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2236 #endif /* !SWIG */ |
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2237 int fd_msg_source_get( struct msg * msg, char ** diamid ); |
| 0 | 2238 |
| 2239 /* | |
| 2240 * FUNCTION: fd_msg_eteid_get | |
| 2241 * | |
| 2242 * PARAMETERS: | |
| 2243 * - | |
| 2244 * | |
| 2245 * DESCRIPTION: | |
| 2246 * Get a new unique end-to-end id value for the local peer. | |
| 2247 * | |
| 2248 * RETURN VALUE: | |
| 2249 * The new assigned value. No error code is defined. | |
| 2250 */ | |
| 2251 uint32_t fd_msg_eteid_get ( void ); | |
| 2252 | |
| 2253 | |
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2254 /* |
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2255 * FUNCTION: fd_msg_sess_get |
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2256 * |
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2257 * PARAMETERS: |
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2258 * dict : the dictionary that contains the Session-Id AVP definition |
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2259 * msg : A valid message. |
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2260 * session : Location to store the session pointer when retrieved. |
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2261 * new : Indicates if the session has been created. |
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2262 * |
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2263 * DESCRIPTION: |
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2264 * This function retrieves or creates the session object corresponding to a message. |
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2265 * If the message does not contain a Session-Id AVP, *session == NULL on return. |
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2266 * Note that the Session-Id AVP must never be modified after created in a message. |
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2267 * |
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2268 * RETURN VALUE: |
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2269 * 0 : success |
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2270 * !0 : standard error code. |
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2271 */ |
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2272 int fd_msg_sess_get(struct dictionary * dict, struct msg * msg, struct session ** session, int * new); |
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2273 |
| 0 | 2274 /***************************************/ |
| 2275 /* Manage AVP values */ | |
| 2276 /***************************************/ | |
| 2277 | |
| 2278 /* | |
| 2279 * FUNCTION: fd_msg_avp_setvalue | |
| 2280 * | |
| 2281 * PARAMETERS: | |
| 2282 * avp : Pointer to a valid avp object with a NULL avp_value pointer. The model must be known. | |
| 2283 * value : pointer to an avp_value. The content will be COPIED into the internal storage area. | |
| 2284 * If data type is an octetstring, the data is also copied. | |
| 2285 * If value is a NULL pointer, the previous data is erased and value is unset in the AVP. | |
| 2286 * | |
| 2287 * DESCRIPTION: | |
| 2288 * Initialize the avp_value field of an AVP header. | |
| 2289 * | |
| 2290 * RETURN VALUE: | |
| 2291 * 0 : The avp_value pointer has been set. | |
| 2292 * EINVAL : A parameter is invalid. | |
| 2293 */ | |
| 2294 int fd_msg_avp_setvalue ( struct avp *avp, union avp_value *value ); | |
| 2295 | |
| 2296 /* | |
| 2297 * FUNCTION: fd_msg_avp_value_encode | |
| 2298 * | |
| 2299 * PARAMETERS: | |
| 2300 * avp : Pointer to a valid avp object with a NULL avp_value. The model must be known. | |
| 2301 * data : Pointer to the data that must be encoded as AVP value and stored in the AVP. | |
| 2302 * This is only valid for AVPs of derived type for which type_data_encode callback is set. (ex: Address type) | |
| 2303 * | |
| 2304 * DESCRIPTION: | |
| 2305 * Initialize the avp_value field of an AVP object from formatted data, using the AVP's type "type_data_encode" callback. | |
| 2306 * | |
| 2307 * RETURN VALUE: | |
| 2308 * 0 : The avp_value has been set. | |
| 2309 * EINVAL : A parameter is invalid. | |
| 2310 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
| 2311 */ | |
|
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2312 #ifndef SWIG |
| 0 | 2313 int fd_msg_avp_value_encode ( void *data, struct avp *avp ); |
|
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2314 #endif /* !SWIG */ |
| 0 | 2315 /* |
| 2316 * FUNCTION: fd_msg_avp_value_interpret | |
| 2317 * | |
| 2318 * PARAMETERS: | |
| 2319 * avp : Pointer to a valid avp object with a non-NULL avp_value value. | |
| 2320 * data : Upon success, formatted interpretation of the AVP value is stored here. | |
| 2321 * | |
| 2322 * DESCRIPTION: | |
| 2323 * Interpret the content of an AVP of Derived type and store the result in data pointer. The structure | |
| 2324 * of the data pointer is dependent on the AVP type. This function calls the "type_data_interpret" callback | |
| 2325 * of the type. | |
| 2326 * | |
| 2327 * RETURN VALUE: | |
| 2328 * 0 : The avp_value has been set. | |
| 2329 * EINVAL : A parameter is invalid. | |
| 2330 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
| 2331 */ | |
|
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2332 #ifndef SWIG |
| 0 | 2333 int fd_msg_avp_value_interpret ( struct avp *avp, void *data ); |
|
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2334 #endif /* !SWIG */ |
| 0 | 2335 |
| 2336 | |
| 2337 /***************************************/ | |
| 2338 /* Message parsing functions */ | |
| 2339 /***************************************/ | |
| 2340 | |
| 2341 /* | |
| 2342 * FUNCTION: fd_msg_bufferize | |
| 2343 * | |
| 2344 * PARAMETERS: | |
| 2345 * msg : A valid msg object. All AVPs must have a value set. | |
| 2346 * buffer : Upon success, this points to a buffer (malloc'd) containing the message ready for network transmission (or security transformations). | |
| 2347 * The buffer may be freed after use. | |
| 2348 * len : if not NULL, the size of the buffer is written here. In any case, this size is updated in the msg header. | |
| 2349 * | |
| 2350 * DESCRIPTION: | |
| 2351 * Renders a message in memory as a buffer that can be sent over the network to the next peer. | |
| 2352 * | |
| 2353 * RETURN VALUE: | |
| 2354 * 0 : The location has been written. | |
| 2355 * EINVAL : The buffer does not contain a valid Diameter message. | |
| 2356 * ENOMEM : Unable to allocate enough memory to create the buffer object. | |
| 2357 */ | |
|
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2358 int fd_msg_bufferize ( struct msg * msg, unsigned char ** buffer, size_t * len ); |
| 0 | 2359 |
| 2360 /* | |
| 2361 * FUNCTION: fd_msg_parse_buffer | |
| 2362 * | |
| 2363 * PARAMETERS: | |
| 2364 * buffer : Pointer to a buffer containing a message received from the network. | |
| 2365 * buflen : the size in bytes of the buffer. | |
| 2366 * msg : Upon success, this points to a valid msg object. No AVP value is resolved in this object, nor grouped AVP. | |
| 2367 * | |
| 2368 * DESCRIPTION: | |
| 2369 * This function parses a buffer an creates a msg object to represent the structure of the message. | |
| 2370 * Since no dictionary lookup is performed, the values of the AVPs are not interpreted. To interpret the values, | |
| 2371 * the returned message object must be passed to fd_msg_parse_dict function. | |
| 2372 * The buffer pointer is saved inside the message and will be freed when not needed anymore. | |
| 2373 * | |
| 2374 * RETURN VALUE: | |
| 2375 * 0 : The location has been written. | |
| 2376 * ENOMEM : Unable to allocate enough memory to create the msg object. | |
| 2377 * EBADMSG : The buffer does not contain a valid Diameter message (or is truncated). | |
| 2378 * EINVAL : A parameter is invalid. | |
| 2379 */ | |
|
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2380 int fd_msg_parse_buffer ( unsigned char ** buffer, size_t buflen, struct msg ** msg ); |
| 0 | 2381 |
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2382 /* Parsing Error Information structure */ |
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2383 struct fd_pei { |
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2384 char * pei_errcode; /* name of the error code to use */ |
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2385 struct avp * pei_avp; /* pointer to invalid or missing AVP (to be freed) */ |
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2386 char * pei_message; /* Overwrite default message if needed */ |
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2387 int pei_protoerr; /* do we set the 'E' bit in the error message ? */ |
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2388 }; |
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2389 |
| 0 | 2390 /* |
| 2391 * FUNCTION: fd_msg_parse_dict | |
| 2392 * | |
| 2393 * PARAMETERS: | |
| 2394 * object : A msg or AVP object as returned by fd_msg_parse_buffer. | |
| 2395 * dict : the dictionary containing the objects definitions to use for resolving all AVPs. | |
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2396 * error_info : If not NULL, will contain the detail about error upon return. May be used to generate an error reply. |
| 0 | 2397 * |
| 2398 * DESCRIPTION: | |
| 2399 * This function looks up for the command and each children AVP definitions in the dictionary. | |
| 2400 * If the dictionary definition is found, avp_model is set and the value of the AVP is interpreted accordingly and: | |
| 2401 * - for grouped AVPs, the children AVP are created and interpreted also. | |
| 2402 * - for numerical AVPs, the value is converted to host byte order and saved in the avp_value field. | |
| 2403 * - for octetstring AVPs, the string is copied into a new buffer and its address is saved in avp_value. | |
| 2404 * If the dictionary definition is not found, avp_model is set to NULL and | |
| 2405 * the content of the AVP is saved as an octetstring in an internal structure. avp_value is NULL. | |
| 2406 * As a result, after this function has been called, there is no more dependency of the msg object to the message buffer, that is be freed. | |
| 2407 * | |
| 2408 * RETURN VALUE: | |
| 2409 * 0 : The message has been fully parsed as described. | |
| 2410 * EINVAL : The msg parameter is invalid for this operation. | |
| 2411 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
| 2412 * ENOTSUP : No dictionary definition for the command or one of the mandatory AVP was found. | |
| 2413 */ | |
|
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2414 int fd_msg_parse_dict ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info ); |
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2415 |
| 0 | 2416 /* |
| 2417 * FUNCTION: fd_msg_parse_rules | |
| 2418 * | |
| 2419 * PARAMETERS: | |
| 2420 * object : A msg or grouped avp object that must be verified. | |
| 2421 * dict : The dictionary containing the rules definitions. | |
|
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2422 * error_info : If not NULL, the first problem information will be saved here. |
| 0 | 2423 * |
| 2424 * DESCRIPTION: | |
| 2425 * Check that the children of the object do not conflict with the dictionary rules (ABNF compliance). | |
| 2426 * | |
| 2427 * RETURN VALUE: | |
| 2428 * 0 : The message has been fully parsed and complies to the defined rules. | |
| 2429 * EBADMSG : A conflict was detected, or a mandatory AVP is unknown in the dictionary. | |
| 2430 * EINVAL : The msg or avp object is invalid for this operation. | |
| 2431 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
| 2432 */ | |
|
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2433 int fd_msg_parse_rules ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info); |
|
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2434 |
| 0 | 2435 |
| 2436 | |
| 2437 /* | |
| 2438 * FUNCTION: fd_msg_update_length | |
| 2439 * | |
| 2440 * PARAMETERS: | |
| 2441 * object : Pointer to a valid msg or avp. | |
| 2442 * | |
| 2443 * DESCRIPTION: | |
| 2444 * Update the length field of the object passed as parameter. | |
| 2445 * As a side effect, all children objects are also updated. Therefore, all avp_value fields of | |
| 2446 * the children AVPs must be set, or an error will occur. | |
| 2447 * | |
| 2448 * RETURN VALUE: | |
| 2449 * 0 : The size has been recomputed. | |
| 2450 * EINVAL : A parameter is invalid. | |
| 2451 */ | |
| 2452 int fd_msg_update_length ( msg_or_avp * object ); | |
| 2453 | |
| 2454 | |
|
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2455 /*============================================================*/ |
|
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2456 /* DISPATCH */ |
|
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|
2457 /*============================================================*/ |
|
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|
2458 |
|
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6
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|
2459 /* Dispatch module (passing incoming messages to extensions registered callbacks) |
|
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2460 * is split between the library and the daemon. |
|
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6
diff
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|
2461 * |
|
e5af94b04946
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6
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|
2462 * The library provides the support for associating dispatch callbacks with |
|
e5af94b04946
Added dispatch module and tests
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6
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|
2463 * dictionary objects. |
|
e5af94b04946
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|
2464 * |
|
e5af94b04946
Added dispatch module and tests
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parents:
6
diff
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|
2465 * The daemon is responsible for calling the callbacks for a message when appropriate. |
|
e5af94b04946
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6
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|
2466 * |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2467 * |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2468 * The dispatch module has two main roles: |
|
e5af94b04946
Added dispatch module and tests
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diff
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|
2469 * - help determine if a message can be handled locally (during the routing step) |
|
e5af94b04946
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6
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|
2470 * This decision involves only the application-id of the message. |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2471 * - pass the message to the callback(s) that will handle it (during the dispatch step) |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2472 * |
|
e5af94b04946
Added dispatch module and tests
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parents:
6
diff
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|
2473 * The first role is handled by the daemon. |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2474 * |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2475 * 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
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|
2476 * |
|
e5af94b04946
Added dispatch module and tests
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parents:
6
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|
2477 * -> For All messages. |
|
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Added dispatch module and tests
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diff
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|
2478 * This callback is called for all messages that are handled locally. This should be used only |
|
e5af94b04946
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diff
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|
2479 * for debug purpose. |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
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|
2480 * |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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|
2481 * -> by AVP value (constants only). |
|
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|
2482 * This callback will be called when a message is received and contains an AVP with a specified enumerated value. |
|
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|
2483 * |
|
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|
2484 * -> by AVP. |
|
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|
2485 * This callback will be called when the received message contains a certain AVP. |
|
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|
2486 * |
|
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|
2487 * -> by command-code. |
|
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|
2488 * This callback will be called when the message is a specific command (and 'R' flag). |
|
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6
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|
2489 * |
|
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|
2490 * -> by application. |
|
e5af94b04946
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6
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|
2491 * This callback will be called when the message has a specific application-id. |
|
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6
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|
2492 * |
|
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6
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|
2493 * ( by vendor: would this be useful? it may be added later) |
|
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|
2494 */ |
|
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|
2495 enum disp_how { |
|
e5af94b04946
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6
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|
2496 DISP_HOW_ANY = 1, /* Any message. This should be only used for debug. */ |
|
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|
2497 DISP_HOW_APPID, /* Any message with the specified application-id */ |
|
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6
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|
2498 DISP_HOW_CC, /* Messages of the specified command-code (request or answer). App id may be specified. */ |
|
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|
2499 DISP_HOW_AVP, /* Messages containing a specific AVP. Command-code and App id may be specified. */ |
|
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6
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|
2500 DISP_HOW_AVP_ENUMVAL /* Messages containing a specific AVP with a specific enumerated value. Command-code and App id may be specified. */ |
|
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|
2501 }; |
|
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Added dispatch module and tests
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|
2502 /* |
|
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|
2503 * Several criteria may be selected at the same time, for example command-code AND application id. |
|
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6
diff
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|
2504 * |
|
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Added dispatch module and tests
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6
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|
2505 * If several callbacks are registered for the same object, they are called in the order they were registered. |
|
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|
2506 * The order in which the callbacks are called is: |
|
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6
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|
2507 * DISP_HOW_ANY |
|
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6
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|
2508 * DISP_HOW_AVP_ENUMVAL & DISP_HOW_AVP |
|
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6
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|
2509 * DISP_HOW_CC |
|
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Added dispatch module and tests
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6
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|
2510 * DISP_HOW_APPID |
|
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Added dispatch module and tests
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6
diff
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|
2511 */ |
|
e5af94b04946
Added dispatch module and tests
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6
diff
changeset
|
2512 |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2513 /* When a callback is registered, a "when" argument is passed in addition to the disp_how value, |
|
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Added dispatch module and tests
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6
diff
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|
2514 * to specify which values the criteria must match. */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2515 struct disp_when { |
|
e5af94b04946
Added dispatch module and tests
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6
diff
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|
2516 struct dict_object * app; |
|
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Added dispatch module and tests
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6
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|
2517 struct dict_object * command; |
|
e5af94b04946
Added dispatch module and tests
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6
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|
2518 struct dict_object * avp; |
|
e5af94b04946
Added dispatch module and tests
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6
diff
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|
2519 struct dict_object * value; |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2520 }; |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
changeset
|
2521 |
|
e5af94b04946
Added dispatch module and tests
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parents:
6
diff
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|
2522 /* Note that all the dictionary objects should really belong to the same dictionary! |
|
e5af94b04946
Added dispatch module and tests
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6
diff
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|
2523 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2524 * 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
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|
2525 * |
|
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Added dispatch module and tests
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parents:
6
diff
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|
2526 * DISP_HOW_ANY. |
|
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Added dispatch module and tests
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6
diff
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|
2527 * In this case, "when" must be NULL. |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2528 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2529 * DISP_HOW_APPID. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2530 * Only the "app_id" field must be set, other fields are ignored. It points to a dictionary object of type DICT_APPLICATION. |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2531 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
changeset
|
2532 * DISP_HOW_CC. |
|
e5af94b04946
Added dispatch module and tests
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6
diff
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|
2533 * The "command" field must be defined and point to a dictionary object of type DICT_COMMAND. |
|
e5af94b04946
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6
diff
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|
2534 * 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
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6
diff
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|
2535 * The other fields are ignored. |
|
e5af94b04946
Added dispatch module and tests
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6
diff
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|
2536 * |
|
e5af94b04946
Added dispatch module and tests
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6
diff
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|
2537 * DISP_HOW_AVP. |
|
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Added dispatch module and tests
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6
diff
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|
2538 * 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
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6
diff
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|
2539 * The "app_id" field may be set to restrict the messages matching to a specific app id. |
|
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6
diff
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|
2540 * The "command" field may also be set to a valid DICT_COMMAND object. |
|
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6
diff
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|
2541 * The content of the "value" field is ignored. |
|
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6
diff
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|
2542 * |
|
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6
diff
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|
2543 * DISP_HOW_AVP_ENUMVAL. |
|
e5af94b04946
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6
diff
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|
2544 * All fields have the same constraints and meaning as in DISP_REG_AVP. In addition, the "value" field must be set |
|
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6
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|
2545 * and points to a valid DICT_ENUMVAL object. |
|
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6
diff
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|
2546 * |
|
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diff
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|
2547 * Here is a sumary of the fields: ( M : must be set; m : may be set; 0 : ignored ) |
|
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6
diff
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|
2548 * field: app_id command avp value |
|
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6
diff
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|
2549 * APPID : M 0 0 0 |
|
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6
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|
2550 * CC : m M 0 0 |
|
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6
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|
2551 * AVP : m m M 0 |
|
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6
diff
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|
2552 * ENUMVA: m m M M |
|
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6
diff
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|
2553 */ |
|
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6
diff
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|
2554 |
|
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6
diff
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|
2555 enum disp_action { |
|
e5af94b04946
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6
diff
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|
2556 DISP_ACT_CONT, /* The next handler should be called, unless *msg == NULL. */ |
|
90
2c9444152e4b
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diff
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|
2557 DISP_ACT_SEND, /* The updated message must be sent. No further callback is called. */ |
|
2c9444152e4b
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|
2558 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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|
2559 }; |
|
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|
2560 /* The callbacks that are registered have the following prototype: |
|
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6
diff
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|
2561 * int dispatch_callback( struct msg ** msg, struct avp * avp, struct session * session, enum disp_action * action ); |
|
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|
2562 * |
|
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6
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|
2563 * CALLBACK: dispatch_callback |
|
e5af94b04946
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6
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|
2564 * |
|
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|
2565 * PARAMETERS: |
|
e5af94b04946
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6
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|
2566 * msg : the received message on function entry. may be updated to answer on return (see description) |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2567 * avp : for callbacks registered with DISP_HOW_AVP or DISP_HOW_AVP_ENUMVAL, direct link to the triggering AVP. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2568 * session : if the message contains a Session-Id AVP, the corresponding session object, NULL otherwise. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2569 * action : upon return, this tells the daemon what to do next. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2570 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2571 * DESCRIPTION: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2572 * Called when a received message matchs the condition for which the callback was registered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2573 * This callback may do any kind of processing on the message, including: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2574 * - create an answer for a request. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2575 * - 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
|
2576 * - 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
|
2577 * - ... |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2578 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2579 * 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
|
2580 * 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
|
2581 * 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
|
2582 * - 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
|
2583 * - 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
|
2584 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2585 * RETURN VALUE: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2586 * 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
|
2587 * !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
|
2588 */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2589 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2590 /* 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
|
2591 struct disp_hdl; |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2592 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2593 /* |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2594 * FUNCTION: fd_disp_register |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2595 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2596 * PARAMETERS: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2597 * 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
|
2598 * how : How the callback must be registered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2599 * when : Values that must match, depending on the how argument. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2600 * 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
|
2601 * 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
|
2602 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2603 * DESCRIPTION: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2604 * 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
|
2605 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2606 * RETURN VALUE: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2607 * 0 : The callback is registered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2608 * EINVAL : A parameter is invalid. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2609 * ENOMEM : Not enough memory to complete the operation |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2610 */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2611 int fd_disp_register ( int (*cb)( struct msg **, struct avp *, struct session *, enum disp_action *), |
|
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2612 enum disp_how how, struct disp_when * when, struct disp_hdl ** handle ); |
|
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2613 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2614 /* |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2615 * FUNCTION: fd_disp_unregister |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2616 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2617 * PARAMETERS: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2618 * handle : Location of the handle of the callback that must be unregistered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2619 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2620 * DESCRIPTION: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2621 * 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
|
2622 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2623 * RETURN VALUE: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2624 * 0 : The callback is unregistered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2625 * EINVAL : A parameter is invalid. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2626 */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2627 int fd_disp_unregister ( struct disp_hdl ** handle ); |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2628 |
|
90
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2629 /* Destroy all handlers */ |
|
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2630 void fd_disp_unregister_all ( void ); |
|
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
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|
2631 |
|
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2632 /* |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2633 * FUNCTION: fd_msg_dispatch |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2634 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2635 * PARAMETERS: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2636 * 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
|
2637 * 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
|
2638 * action : Upon return, the action that must be taken on the message |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2639 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2640 * DESCRIPTION: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2641 * Call all handlers registered for a given message. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2642 * 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
|
2643 * 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
|
2644 * 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
|
2645 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2646 * RETURN VALUE: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2647 * 0 : Success. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2648 * EINVAL : A parameter is invalid. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2649 * (other errors) |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2650 */ |
|
90
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2651 int fd_msg_dispatch ( struct msg ** msg, struct session * session, enum disp_action *action, const char ** error_code ); |
|
7
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2652 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2653 |
| 0 | 2654 |
| 2655 /*============================================================*/ | |
|
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2656 /* QUEUES */ |
| 0 | 2657 /*============================================================*/ |
| 2658 | |
|
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2659 /* Management of FIFO queues of elements */ |
| 0 | 2660 |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2661 /* A queue is an opaque object */ |
|
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2662 struct fifo; |
| 0 | 2663 |
| 2664 /* | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2665 * FUNCTION: fd_fifo_new |
| 0 | 2666 * |
| 2667 * PARAMETERS: | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2668 * queue : Upon success, a pointer to the new queue is saved here. |
| 0 | 2669 * |
| 2670 * DESCRIPTION: | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2671 * Create a new empty queue. |
| 0 | 2672 * |
| 2673 * RETURN VALUE : | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2674 * 0 : The queue has been initialized successfully. |
| 0 | 2675 * EINVAL : The parameter is invalid. |
| 2676 * ENOMEM : Not enough memory to complete the creation. | |
| 2677 */ | |
|
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2678 int fd_fifo_new ( struct fifo ** queue ); |
| 0 | 2679 |
| 2680 /* | |
|
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2681 * FUNCTION: fd_fifo_del |
| 0 | 2682 * |
| 2683 * PARAMETERS: | |
|
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2684 * queue : Pointer to an empty queue to delete. |
| 0 | 2685 * |
| 2686 * DESCRIPTION: | |
|
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2687 * Destroys a queue. This is only possible if no thread is waiting for an element, |
| 0 | 2688 * and the queue is empty. |
| 2689 * | |
| 2690 * RETURN VALUE: | |
|
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2691 * 0 : The queue has been destroyed successfully. |
| 0 | 2692 * EINVAL : The parameter is invalid. |
| 2693 */ | |
|
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2694 int fd_fifo_del ( struct fifo ** queue ); |
| 0 | 2695 |
| 2696 /* | |
|
25
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
2697 * FUNCTION: fd_fifo_move |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
2698 * |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
2699 * PARAMETERS: |
|
43
2db15632a63d
Added a large part of connection establishment logic, to test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
34
diff
changeset
|
2700 * old : Location of a FIFO that is to be emptied. |
|
25
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
2701 * new : A FIFO that will receive the old data. |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
2702 * loc_update : if non NULL, a place to store the pointer to new FIFO atomically with the move. |
|
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2703 * |
|
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2704 * DESCRIPTION: |
|
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2705 * Empties a queue and move its content to another one atomically. |
|
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2706 * |
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2707 * RETURN VALUE: |
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2708 * 0 : The queue has been destroyed successfully. |
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2709 * EINVAL : A parameter is invalid. |
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2710 */ |
|
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2711 int fd_fifo_move ( struct fifo * old, struct fifo * new, struct fifo ** loc_update ); |
|
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2712 |
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2713 /* |
|
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2714 * FUNCTION: fd_fifo_length |
| 0 | 2715 * |
| 2716 * PARAMETERS: | |
|
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2717 * queue : The queue from which to retrieve the number of elements. |
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2718 * length : Upon success, the current number of elements in the queue is stored here. |
| 0 | 2719 * |
| 2720 * DESCRIPTION: | |
|
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2721 * Retrieve the number of elements in a queue. |
| 0 | 2722 * |
| 2723 * RETURN VALUE: | |
| 2724 * 0 : The length of the queue has been written. | |
| 2725 * EINVAL : A parameter is invalid. | |
| 2726 */ | |
|
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2727 int fd_fifo_length ( struct fifo * queue, int * length ); |
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2728 int fd_fifo_length_noerr ( struct fifo * queue ); /* no error checking version */ |
| 0 | 2729 |
| 2730 /* | |
|
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2731 * FUNCTION: fd_fifo_setthrhd |
| 0 | 2732 * |
| 2733 * PARAMETERS: | |
| 2734 * queue : The queue for which the thresholds are being set. | |
| 2735 * data : An opaque pointer that is passed to h_cb and l_cb callbacks. | |
| 2736 * high : The high-level threshold. If the number of elements in the queue increase to this value, h_cb is called. | |
| 2737 * h_cb : if not NULL, a callback to call when the queue lengh is bigger than "high". | |
| 2738 * low : The low-level threshold. Must be < high. | |
| 2739 * l_cb : If the number of elements decrease to low, this callback is called. | |
| 2740 * | |
| 2741 * DESCRIPTION: | |
| 2742 * This function allows to adjust the number of producer / consumer threads of a queue. | |
|
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2743 * If the consumer are slower than the producers, the number of elements in the queue increase. |
| 0 | 2744 * By setting a "high" value, we allow a callback to be called when this number is too high. |
| 2745 * The typical use would be to create an additional consumer thread in this callback. | |
| 2746 * 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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2747 * (the callback itself should implement a limit on the number of consumers that can be created) |
| 0 | 2748 * 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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2749 * 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 | 2750 * and so on. |
| 2751 * | |
| 2752 * Since there is no destructor for the data pointer, if cleanup operations are required, they should be performed in | |
| 2753 * l_cb when the length of the queue is becoming < low. | |
| 2754 * | |
|
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2755 * Note that the callbacks are called synchronously, during fd_fifo_post or fd_fifo_get. Their operation should be quick. |
| 0 | 2756 * |
| 2757 * RETURN VALUE: | |
| 2758 * 0 : The thresholds have been set | |
| 2759 * EINVAL : A parameter is invalid. | |
| 2760 */ | |
|
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2761 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 | 2762 |
| 2763 /* | |
|
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2764 * FUNCTION: fd_fifo_post |
| 0 | 2765 * |
| 2766 * PARAMETERS: | |
|
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2767 * queue : The queue in which the element must be posted. |
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2768 * item : The element that is put in the queue. |
| 0 | 2769 * |
| 2770 * DESCRIPTION: | |
|
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2771 * An element is added in a queue. Elements are retrieved from the queue in FIFO order |
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2772 * with the fd_fifo_get, fd_fifo_tryget, or fd_fifo_timedget functions. |
| 0 | 2773 * |
| 2774 * RETURN VALUE: | |
|
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2775 * 0 : The element is queued. |
| 0 | 2776 * EINVAL : A parameter is invalid. |
| 2777 * ENOMEM : Not enough memory to complete the operation. | |
| 2778 */ | |
|
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2779 int fd_fifo_post_int ( struct fifo * queue, void ** item ); |
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2780 #define fd_fifo_post(queue, item) \ |
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2781 fd_fifo_post_int((queue), (void *)(item)) |
| 0 | 2782 |
| 2783 /* | |
|
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2784 * FUNCTION: fd_fifo_get |
| 0 | 2785 * |
| 2786 * PARAMETERS: | |
|
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2787 * queue : The queue from which the first element must be retrieved. |
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2788 * item : On return, the first element of the queue is stored here. |
| 0 | 2789 * |
| 2790 * DESCRIPTION: | |
|
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2791 * This function retrieves the first element from a queue. If the queue is empty, the function will block the |
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2792 * thread until a new element is posted to the queue, or until the thread is canceled (in which case the |
| 0 | 2793 * function does not return). |
| 2794 * | |
| 2795 * RETURN VALUE: | |
|
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2796 * 0 : A new element has been retrieved. |
| 0 | 2797 * EINVAL : A parameter is invalid. |
| 2798 */ | |
|
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2799 int fd_fifo_get_int ( struct fifo * queue, void ** item ); |
|
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2800 #define fd_fifo_get(queue, item) \ |
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2801 fd_fifo_get_int((queue), (void *)(item)) |
| 0 | 2802 |
| 2803 /* | |
|
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2804 * FUNCTION: fd_fifo_tryget |
| 0 | 2805 * |
| 2806 * PARAMETERS: | |
|
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2807 * queue : The queue from which the element must be retrieved. |
|
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2808 * item : On return, the first element of the queue is stored here. |
| 0 | 2809 * |
| 2810 * DESCRIPTION: | |
|
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2811 * This function is similar to fd_fifo_get, except that it will not block if |
| 0 | 2812 * the queue is empty, but return EWOULDBLOCK instead. |
| 2813 * | |
| 2814 * RETURN VALUE: | |
|
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2815 * 0 : A new element has been retrieved. |
| 0 | 2816 * EINVAL : A parameter is invalid. |
| 2817 * EWOULDBLOCK : The queue was empty. | |
| 2818 */ | |
|
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2819 int fd_fifo_tryget_int ( struct fifo * queue, void ** item ); |
|
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2820 #define fd_fifo_tryget(queue, item) \ |
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2821 fd_fifo_tryget_int((queue), (void *)(item)) |
| 0 | 2822 |
| 2823 /* | |
|
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2824 * FUNCTION: fd_fifo_timedget |
| 0 | 2825 * |
| 2826 * PARAMETERS: | |
|
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2827 * queue : The queue from which the element must be retrieved. |
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2828 * item : On return, the element is stored here. |
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2829 * abstime : the absolute time until which we allow waiting for an item. |
| 0 | 2830 * |
| 2831 * DESCRIPTION: | |
|
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2832 * This function is similar to fd_fifo_get, except that it will block if the queue is empty |
| 0 | 2833 * only until the absolute time abstime (see pthread_cond_timedwait for + info). |
| 2834 * If the queue is still empty when the time expires, the function returns ETIMEDOUT | |
| 2835 * | |
| 2836 * RETURN VALUE: | |
|
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2837 * 0 : A new item has been retrieved. |
| 0 | 2838 * EINVAL : A parameter is invalid. |
|
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2839 * ETIMEDOUT : The time out has passed and no item has been received. |
| 0 | 2840 */ |
|
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2841 int fd_fifo_timedget_int ( struct fifo * queue, void ** item, const struct timespec *abstime ); |
|
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2842 #define fd_fifo_timedget(queue, item, abstime) \ |
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2843 fd_fifo_timedget_int((queue), (void *)(item), (abstime)) |
| 0 | 2844 |
|
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2845 /* Dump a fifo list and optionally its inner elements -- beware of deadlocks! */ |
|
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2846 void fd_fifo_dump(int level, char * name, struct fifo * queue, void (*dump_item)(int level, void * item)); |
|
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2847 |
| 0 | 2848 #endif /* _LIBFREEDIAMETER_H */ |