Mercurial > hg > freeDiameter
annotate include/freeDiameter/libfdproto.h @ 740:4a9f08d6b6ba
Updated my mail address
| author | Sebastien Decugis <sdecugis@nict.go.jp> |
|---|---|
| date | Thu, 24 Mar 2011 15:00:18 +0900 |
| parents | d666051658bd |
| children | 463ffc722c1a |
| rev | line source |
|---|---|
| 0 | 1 /********************************************************************************************************* |
| 2 * Software License Agreement (BSD License) * | |
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3 * Author: Sebastien Decugis <sdecugis@freediameter.net> * |
| 0 | 4 * * |
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5 * Copyright (c) 2011, WIDE Project and NICT * |
| 0 | 6 * All rights reserved. * |
| 7 * * | |
| 8 * Redistribution and use of this software in source and binary forms, with or without modification, are * | |
| 9 * permitted provided that the following conditions are met: * | |
| 10 * * | |
| 11 * * Redistributions of source code must retain the above * | |
| 12 * copyright notice, this list of conditions and the * | |
| 13 * following disclaimer. * | |
| 14 * * | |
| 15 * * Redistributions in binary form must reproduce the above * | |
| 16 * copyright notice, this list of conditions and the * | |
| 17 * following disclaimer in the documentation and/or other * | |
| 18 * materials provided with the distribution. * | |
| 19 * * | |
| 20 * * Neither the name of the WIDE Project or NICT nor the * | |
| 21 * names of its contributors may be used to endorse or * | |
| 22 * promote products derived from this software without * | |
| 23 * specific prior written permission of WIDE Project and * | |
| 24 * NICT. * | |
| 25 * * | |
| 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED * | |
| 27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * | |
| 28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * | |
| 29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * | |
| 30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * | |
| 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * | |
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32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY S_OUT OF THE USE OF THIS SOFTWARE, EVEN IF * |
| 0 | 33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * |
| 34 *********************************************************************************************************/ | |
| 35 | |
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36 /* This file contains the definitions of functions and types used by the libfreeDiameter library. |
| 0 | 37 * |
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38 * This library is meant to be used by both the freeDiameter daemon and its extensions. |
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39 * It provides the tools to manipulate Diameter messages and related data. |
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40 * This file should always be included as #include <freeDiameter/libfreeDiameter.h> |
| 0 | 41 * |
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42 * If any change is made to this file, you must increment the FD_PROJECT_VERSION_API version. |
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43 * |
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44 * The file contains the following parts: |
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45 * DEBUG |
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46 * MACROS |
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47 * OCTET STRINGS |
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48 * THREADS |
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49 * LISTS |
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50 * DICTIONARY |
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51 * SESSIONS |
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52 * MESSAGES |
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53 * DISPATCH |
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54 * QUEUES |
| 0 | 55 */ |
| 56 | |
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57 #ifndef _LIBFDPROTO_H |
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58 #define _LIBFDPROTO_H |
| 0 | 59 |
| 60 #ifndef FD_IS_CONFIG | |
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61 #error "You must include 'freeDiameter-host.h' before this file." |
| 0 | 62 #endif /* FD_IS_CONFIG */ |
| 63 | |
| 64 #include <pthread.h> | |
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65 #include <sched.h> |
| 0 | 66 #include <string.h> |
| 67 #include <assert.h> | |
| 68 #include <errno.h> | |
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69 #include <netinet/in.h> |
| 0 | 70 #include <arpa/inet.h> |
| 71 #include <sys/socket.h> | |
| 72 #include <netdb.h> | |
| 73 #include <stdio.h> | |
| 74 #include <stdlib.h> | |
| 75 #include <unistd.h> | |
| 76 | |
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77 #ifdef DEBUG |
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78 #include <libgen.h> /* for basename if --dbg_file is specified */ |
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79 #endif /* DEBUG */ |
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80 |
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81 /*============================================================*/ |
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82 /* INIT */ |
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83 /*============================================================*/ |
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84 |
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85 /* This function must be called first, before any call to another library function */ |
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86 int fd_libproto_init(void); /* note if you are using libfdcore, it handles this already */ |
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87 |
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88 /* Call this one when the application terminates, to destroy internal threads */ |
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89 void fd_libproto_fini(void); |
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90 |
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91 |
| 0 | 92 /*============================================================*/ |
| 93 /* DEBUG */ | |
| 94 /*============================================================*/ | |
| 95 | |
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96 |
| 0 | 97 /* |
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98 * FUNCTION: fd_log_debug_fstr |
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99 * MACRO: fd_log_debug |
| 0 | 100 * |
| 101 * PARAMETERS: | |
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102 * fstr : Stream where the text will be sent (default: stdout) |
| 0 | 103 * format : Same format string as in the printf function |
| 104 * ... : Same list as printf | |
| 105 * | |
| 106 * DESCRIPTION: | |
| 107 * Log internal information for use of developpers only. | |
| 108 * The format and arguments may contain UTF-8 encoded data. The | |
| 109 * output medium (file or console) is expected to support this encoding. | |
| 110 * | |
| 111 * This function assumes that a global mutex called "fd_log_lock" exists | |
| 112 * in the address space of the current process. | |
| 113 * | |
| 114 * RETURN VALUE: | |
| 115 * None. | |
| 116 */ | |
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117 void fd_log_debug_fstr ( FILE * fstr, const char * format, ... ); |
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118 #define fd_log_debug(format,args...) fd_log_debug_fstr(NULL, format, ## args) |
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119 |
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121 extern char * fd_debug_one_function; |
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122 extern char * fd_debug_one_file; |
| 0 | 123 |
| 124 /* | |
| 125 * FUNCTION: fd_log_threadname | |
| 126 * | |
| 127 * PARAMETERS: | |
| 128 * name : \0-terminated string containing a name to identify the current thread. | |
| 129 * | |
| 130 * DESCRIPTION: | |
| 131 * Name the current thread, useful for debugging multi-threaded problems. | |
| 132 * | |
| 133 * This function assumes that a global thread-specific key called "fd_log_thname" exists | |
| 134 * in the address space of the current process. | |
| 135 * | |
| 136 * RETURN VALUE: | |
| 137 * None. | |
| 138 */ | |
| 139 void fd_log_threadname ( char * name ); | |
| 140 extern pthread_key_t fd_log_thname; | |
| 141 | |
| 142 /* | |
| 143 * FUNCTION: fd_log_time | |
| 144 * | |
| 145 * PARAMETERS: | |
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146 * ts : The timestamp to log, or NULL for "now" |
| 0 | 147 * buf : An array where the time must be stored |
| 148 * len : size of the buffer | |
| 149 * | |
| 150 * DESCRIPTION: | |
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151 * Writes the timestamp (in human readable format) in a buffer. |
| 0 | 152 * |
| 153 * RETURN VALUE: | |
| 154 * pointer to buf. | |
| 155 */ | |
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156 char * fd_log_time ( struct timespec * ts, char * buf, size_t len ); |
| 0 | 157 |
| 158 | |
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159 /*============================================================*/ |
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160 /* DEBUG MACROS */ |
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161 /*============================================================*/ |
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162 |
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163 #ifndef ASSERT |
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164 #define ASSERT(x) assert(x) |
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165 #endif /* ASSERT */ |
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166 |
| 0 | 167 /* levels definitions */ |
| 168 #define NONE 0 /* Display no debug message */ | |
| 169 #define INFO 1 /* Display errors only */ | |
| 170 #define FULL 2 /* Display additional information to follow code execution */ | |
| 171 #define ANNOYING 4 /* Very verbose, for example in loops */ | |
| 172 #define FCTS 6 /* Display entry parameters of most functions */ | |
| 173 #define CALL 9 /* Display calls to most functions (with CHECK macros) */ | |
| 174 | |
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175 /* Increment the debug level for a file at compilation time by defining -DTRACE_LEVEL=FULL for example. */ |
| 0 | 176 #ifndef TRACE_LEVEL |
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177 #define TRACE_LEVEL NONE |
| 0 | 178 #endif /* TRACE_LEVEL */ |
| 179 | |
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180 /* The level of the file being compiled. */ |
| 0 | 181 static int local_debug_level = TRACE_LEVEL; |
| 182 | |
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183 /* A global level, changed by configuration or cmd line for example. Default is INFO (in libfdproto/log.c). */ |
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184 extern int fd_g_debug_lvl; |
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185 |
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186 /* Some portability code to get nice function name in __PRETTY_FUNCTION__ */ |
| 0 | 187 #if __STDC_VERSION__ < 199901L |
| 188 # if __GNUC__ >= 2 | |
| 189 # define __func__ __FUNCTION__ | |
| 190 # else /* __GNUC__ >= 2 */ | |
| 191 # define __func__ "<unknown>" | |
| 192 # endif /* __GNUC__ >= 2 */ | |
| 193 #endif /* __STDC_VERSION__ < 199901L */ | |
| 194 #ifndef __PRETTY_FUNCTION__ | |
| 195 #define __PRETTY_FUNCTION__ __func__ | |
| 196 #endif /* __PRETTY_FUNCTION__ */ | |
| 197 | |
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198 /* A version of __FILE__ without the full path */ |
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199 static char * file_bname = NULL; |
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200 #define __STRIPPED_FILE__ (file_bname ?: (file_bname = basename((char *)__FILE__))) |
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201 |
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202 |
| 0 | 203 /* Boolean for tracing at a certain level */ |
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204 #ifdef DEBUG |
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205 #define TRACE_BOOL(_level_) ( ((_level_) <= local_debug_level + fd_g_debug_lvl) \ |
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206 || (fd_debug_one_function && !strcmp(fd_debug_one_function, __PRETTY_FUNCTION__)) \ |
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207 || (fd_debug_one_file && !strcmp(fd_debug_one_file, __STRIPPED_FILE__) ) ) |
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208 #else /* DEBUG */ |
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209 #define TRACE_BOOL(_level_) ((_level_) <= local_debug_level + fd_g_debug_lvl) |
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210 #endif /* DEBUG */ |
| 0 | 211 |
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212 |
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213 /************* |
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214 The general debug macro, each call results in two lines of debug messages (change the macro for more compact output) |
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215 *************/ |
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216 #ifdef DEBUG |
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217 /* In DEBUG mode, we add (a lot of) meta-information along each trace. This makes multi-threading problems easier to debug. */ |
| 0 | 218 #define TRACE_DEBUG(level,format,args... ) { \ |
| 219 if ( TRACE_BOOL(level) ) { \ | |
| 220 char __buf[25]; \ | |
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221 const char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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222 fd_log_debug("\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
| 0 | 223 "\t%s|%*s" format "\n", \ |
| 206 | 224 __thn, fd_log_time(NULL, __buf, sizeof(__buf)), __PRETTY_FUNCTION__, __FILE__, __LINE__,\ |
| 0 | 225 (level < FULL)?"@":" ",level, "", ## args); \ |
| 226 } \ | |
| 227 } | |
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228 #else /* DEBUG */ |
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229 /* Do not print thread, function, ... only the message itself in this case, unless the debug level is set > FULL. */ |
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230 #define TRACE_DEBUG(level,format,args... ) { \ |
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231 if ( TRACE_BOOL(level) ) { \ |
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232 if (fd_g_debug_lvl > FULL) { \ |
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233 char __buf[25]; \ |
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234 const char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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235 fd_log_debug("\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
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236 "\t%s|%*s" format "\n", \ |
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237 __thn, fd_log_time(NULL, __buf, sizeof(__buf)), __PRETTY_FUNCTION__, __FILE__, __LINE__,\ |
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238 (level < FULL)?"@":" ",level, "", ## args); \ |
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239 } else { \ |
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240 fd_log_debug(format "\n", ## args); \ |
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241 } \ |
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242 } \ |
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243 } |
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244 #endif /* DEBUG */ |
| 0 | 245 |
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246 /************* |
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247 Derivatives from this macro |
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248 ************/ |
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249 /* Helper for function entry -- for very detailed trace of the execution */ |
| 0 | 250 #define TRACE_ENTRY(_format,_args... ) \ |
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251 TRACE_DEBUG(FCTS, "[enter] %s(" _format ") {" #_args "}", __PRETTY_FUNCTION__, ##_args ); |
| 0 | 252 |
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253 /* Helper for debugging by adding traces -- for debuging a specific location of the code */ |
| 0 | 254 #define TRACE_HERE() \ |
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255 TRACE_DEBUG(NONE, " -- debug checkpoint %d -- ", fd_breakhere()); |
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256 int fd_breakhere(void); |
| 0 | 257 |
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258 /* Helper for tracing the CHECK_* macros bellow -- very very verbose code execution! */ |
| 0 | 259 #define TRACE_DEBUG_ALL( str ) \ |
| 260 TRACE_DEBUG(CALL, str ); | |
| 261 | |
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262 /* For development only, to keep track of TODO locations in the code */ |
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263 #ifndef ERRORS_ON_TODO |
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264 #define TODO( _msg, _args... ) \ |
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265 TRACE_DEBUG(NONE, "TODO: " _msg , ##_args); |
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266 #else /* ERRORS_ON_TODO */ |
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267 #define TODO( _msg, _args... ) \ |
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268 "TODO" = _msg ## _args; /* just a stupid compilation error to spot the todo */ |
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269 #endif /* ERRORS_ON_TODO */ |
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270 |
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271 /* Trace a binary buffer content */ |
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272 #define TRACE_DEBUG_BUFFER(level, prefix, buf, bufsz, suffix ) { \ |
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273 if ( TRACE_BOOL(level) ) { \ |
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274 char __ts[25]; \ |
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275 int __i; \ |
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276 size_t __sz = (size_t)(bufsz); \ |
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277 uint8_t * __buf = (uint8_t *)(buf); \ |
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278 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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279 fd_log_debug("\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
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280 "\t%s|%*s" prefix , \ |
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281 __thn, fd_log_time(NULL, __ts, sizeof(__ts)), __PRETTY_FUNCTION__, __FILE__, __LINE__, \ |
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282 (level < FULL)?"@":" ",level, ""); \ |
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283 for (__i = 0; __i < __sz; __i++) { \ |
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284 fd_log_debug("%02.2hhx", __buf[__i]); \ |
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285 } \ |
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286 fd_log_debug(suffix "\n"); \ |
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287 } \ |
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288 } |
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289 |
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290 /* Some aliases to socket addresses structures */ |
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291 #define sSS struct sockaddr_storage |
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292 #define sSA struct sockaddr |
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293 #define sSA4 struct sockaddr_in |
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294 #define sSA6 struct sockaddr_in6 |
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295 |
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296 /* The sockaddr length of a sSS structure */ |
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297 #define sSAlen( _sa_ ) \ |
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298 ( (socklen_t) ( (((sSA *)_sa_)->sa_family == AF_INET) ? (sizeof(sSA4)) : \ |
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299 ((((sSA *)_sa_)->sa_family == AF_INET6) ? (sizeof(sSA6)) : \ |
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300 0 ) ) ) |
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301 |
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302 /* Dump one sockaddr Node information */ |
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303 #define sSA_DUMP_NODE( sa, flag ) { \ |
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304 sSA * __sa = (sSA *)(sa); \ |
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305 char __addrbuf[INET6_ADDRSTRLEN]; \ |
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306 if (__sa) { \ |
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307 int __rc = getnameinfo(__sa, \ |
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308 sSAlen(__sa), \ |
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309 __addrbuf, \ |
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310 sizeof(__addrbuf), \ |
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311 NULL, \ |
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312 0, \ |
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313 flag); \ |
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314 if (__rc) \ |
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315 fd_log_debug("%s", (char *)gai_strerror(__rc)); \ |
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316 else \ |
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317 fd_log_debug("%s", &__addrbuf[0]); \ |
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318 } else { \ |
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319 fd_log_debug("(NULL / ANY)"); \ |
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320 } \ |
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321 } |
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322 /* Same but with the port (service) also */ |
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323 #define sSA_DUMP_NODE_SERV( sa, flag ) { \ |
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324 sSA * __sa = (sSA *)(sa); \ |
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325 char __addrbuf[INET6_ADDRSTRLEN]; \ |
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326 char __servbuf[32]; \ |
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327 if (__sa) { \ |
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328 int __rc = getnameinfo(__sa, \ |
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329 sSAlen(__sa), \ |
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330 __addrbuf, \ |
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331 sizeof(__addrbuf), \ |
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332 __servbuf, \ |
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333 sizeof(__servbuf), \ |
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334 flag); \ |
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335 if (__rc) \ |
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336 fd_log_debug("%s", (char *)gai_strerror(__rc)); \ |
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337 else \ |
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338 fd_log_debug("[%s]:%s", &__addrbuf[0],&__servbuf[0]); \ |
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339 } else { \ |
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340 fd_log_debug("(NULL / ANY)"); \ |
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341 } \ |
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342 } |
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343 |
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344 /* Inside a debug trace */ |
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345 #define TRACE_DEBUG_sSA(level, prefix, sa, flags, suffix ) { \ |
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346 if ( TRACE_BOOL(level) ) { \ |
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347 char __buf[25]; \ |
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348 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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349 fd_log_debug("\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
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350 "\t%s|%*s" prefix , \ |
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351 __thn, fd_log_time(NULL, __buf, sizeof(__buf)), __PRETTY_FUNCTION__, __FILE__, __LINE__,\ |
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352 (level < FULL)?"@":" ",level, ""); \ |
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353 sSA_DUMP_NODE_SERV( sa, flags ); \ |
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354 fd_log_debug(suffix "\n"); \ |
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355 } \ |
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356 } |
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357 |
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358 /* Report an error */ |
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359 #define TRACE_DEBUG_ERROR(format,args... ) \ |
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360 TRACE_DEBUG(INFO, format, ##args) |
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361 |
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362 /****************** |
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363 Optimized code: remove all debugging code |
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364 **/ |
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365 #ifdef STRIP_DEBUG_CODE |
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366 #undef TRACE_DEBUG |
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367 #undef TRACE_BOOL |
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368 #undef TRACE_DEBUG_sSA |
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369 #undef TRACE_DEBUG_BUFFER |
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370 #undef TRACE_DEBUG_ERROR |
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371 #define TRACE_DEBUG(level,format,args... ) |
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372 #define TRACE_BOOL(_level_) (0) |
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373 #define TRACE_DEBUG_BUFFER(level, prefix, buf, bufsz, suffix ) |
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374 #define TRACE_DEBUG_sSA(level, prefix, sa, flags, suffix ) |
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375 #define TRACE_DEBUG_ERROR(format,args... ) { \ |
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376 fd_log_debug(format "\n", ## args); \ |
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377 } |
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378 #endif /* STRIP_DEBUG_CODE */ |
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379 |
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380 |
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381 /*============================================================*/ |
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382 /* ERROR CHECKING MACRO */ |
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383 /*============================================================*/ |
| 0 | 384 |
| 385 /* Macros to check a return value and branch out in case of error. | |
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386 * These macro should be used only when errors are improbable, not for expected errors. |
| 0 | 387 */ |
| 388 | |
| 389 /* Check the return value of a system function and execute fallback in case of error */ | |
| 390 #define CHECK_SYS_DO( __call__, __fallback__ ) { \ | |
| 391 int __ret__; \ | |
| 392 TRACE_DEBUG_ALL( "Check SYS: " #__call__ ); \ | |
| 393 __ret__ = (__call__); \ | |
| 394 if (__ret__ < 0) { \ | |
| 395 int __err__ = errno; /* We may handle EINTR here */ \ | |
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396 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "' :\t%s", strerror(__err__));\ |
| 0 | 397 __fallback__; \ |
| 398 } \ | |
| 399 } | |
| 400 /* Check the return value of a system function, return error code on error */ | |
| 401 #define CHECK_SYS( __call__ ) { \ | |
| 402 int __ret__; \ | |
| 403 TRACE_DEBUG_ALL( "Check SYS: " #__call__ ); \ | |
| 404 __ret__ = (__call__); \ | |
| 405 if (__ret__ < 0) { \ | |
| 406 int __err__ = errno; /* We may handle EINTR here */ \ | |
|
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407 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "' :\t%s", strerror(__err__));\ |
| 0 | 408 return __err__; \ |
| 409 } \ | |
| 410 } | |
| 411 | |
| 412 /* Check the return value of a POSIX function and execute fallback in case of error or special value */ | |
| 413 #define CHECK_POSIX_DO2( __call__, __speval__, __fallback1__, __fallback2__ ) { \ | |
| 414 int __ret__; \ | |
| 415 TRACE_DEBUG_ALL( "Check POSIX: " #__call__ ); \ | |
| 416 __ret__ = (__call__); \ | |
| 417 if (__ret__ != 0) { \ | |
| 418 if (__ret__ == (__speval__)) { \ | |
| 419 __fallback1__; \ | |
| 420 } else { \ | |
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421 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__ret__)); \ |
| 0 | 422 __fallback2__; \ |
| 423 } \ | |
| 424 } \ | |
| 425 } | |
| 426 | |
| 427 /* Check the return value of a POSIX function and execute fallback in case of error */ | |
| 428 #define CHECK_POSIX_DO( __call__, __fallback__ ) \ | |
| 429 CHECK_POSIX_DO2( (__call__), 0, , __fallback__ ); | |
| 430 | |
| 431 /* Check the return value of a POSIX function and return it if error */ | |
| 432 #define CHECK_POSIX( __call__ ) { \ | |
| 433 int __v__; \ | |
| 434 CHECK_POSIX_DO( __v__ = (__call__), return __v__ ); \ | |
| 435 } | |
| 436 | |
| 437 /* Check that a memory allocator did not return NULL, otherwise log an error and execute fallback */ | |
| 438 #define CHECK_MALLOC_DO( __call__, __fallback__ ) { \ | |
| 439 void * __ret__; \ | |
| 440 TRACE_DEBUG_ALL( "Check MALLOC: " #__call__ ); \ | |
| 441 __ret__ = (void *)( __call__ ); \ | |
| 442 if (__ret__ == NULL) { \ | |
| 443 int __err__ = errno; \ | |
|
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444 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__err__)); \ |
| 0 | 445 __fallback__; \ |
| 446 } \ | |
| 447 } | |
| 448 | |
| 449 /* Check that a memory allocator did not return NULL, otherwise return ENOMEM */ | |
| 450 #define CHECK_MALLOC( __call__ ) \ | |
| 451 CHECK_MALLOC_DO( __call__, return ENOMEM ); | |
| 452 | |
| 453 | |
| 454 /* Check parameters at function entry, execute fallback on error */ | |
|
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455 #define CHECK_PARAMS_DO( __bool__, __fallback__ ) \ |
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456 TRACE_DEBUG_ALL( "Check PARAMS: " #__bool__ ); \ |
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457 if ( ! (__bool__) ) { \ |
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458 TRACE_DEBUG_ERROR("Warning: Invalid parameter received in '" #__bool__ "'"); \ |
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459 __fallback__; \ |
| 0 | 460 } |
| 461 /* Check parameters at function entry, return EINVAL if the boolean is false (similar to assert) */ | |
| 462 #define CHECK_PARAMS( __bool__ ) \ | |
| 463 CHECK_PARAMS_DO( __bool__, return EINVAL ); | |
| 464 | |
| 465 /* Check the return value of an internal function, log and propagate */ | |
| 466 #define CHECK_FCT_DO( __call__, __fallback__ ) { \ | |
| 467 int __ret__; \ | |
| 468 TRACE_DEBUG_ALL( "Check FCT: " #__call__ ); \ | |
| 469 __ret__ = (__call__); \ | |
| 470 if (__ret__ != 0) { \ | |
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471 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__ret__)); \ |
| 0 | 472 __fallback__; \ |
| 473 } \ | |
| 474 } | |
| 475 /* Check the return value of a function call, return any error code */ | |
| 476 #define CHECK_FCT( __call__ ) { \ | |
| 477 int __v__; \ | |
| 478 CHECK_FCT_DO( __v__ = (__call__), return __v__ ); \ | |
| 479 } | |
| 480 | |
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481 |
|
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482 |
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483 /*============================================================*/ |
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484 /* OTHER MACROS */ |
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485 /*============================================================*/ |
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486 |
|
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487 |
|
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488 /* helper macros (pre-processor hacks to allow macro arguments) */ |
|
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489 #define __tostr( arg ) #arg |
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490 #define _stringize( arg ) __tostr( arg ) |
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491 #define __agr( arg1, arg2 ) arg1 ## arg2 |
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492 #define _aggregate( arg1, arg2 ) __agr( arg1, arg2 ) |
| 0 | 493 |
| 494 | |
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495 /* A l4 protocol name (TCP / SCTP) */ |
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496 #ifdef DISABLE_SCTP |
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497 #define IPPROTO_NAME( _proto ) \ |
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498 (((_proto) == IPPROTO_TCP) ? "TCP" : \ |
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499 "Unknown") |
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500 #else /* DISABLE_SCTP */ |
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501 #define IPPROTO_NAME( _proto ) \ |
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502 ( ((_proto) == IPPROTO_TCP) ? "TCP" : \ |
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503 (((_proto) == IPPROTO_SCTP) ? "SCTP" : \ |
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504 "Unknown")) |
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505 #endif /* DISABLE_SCTP */ |
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506 |
| 0 | 507 /* Define the value of IP loopback address */ |
| 508 #ifndef INADDR_LOOPBACK | |
| 509 #define INADDR_LOOPBACK inet_addr("127.0.0.1") | |
| 510 #endif /* INADDR_LOOPBACK */ | |
| 511 | |
|
512
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512 #ifndef INADDR_BROADCAST |
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513 #define INADDR_BROADCAST ((in_addr_t) 0xffffffff) |
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514 #endif /* INADDR_BROADCAST */ |
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|
515 |
|
134
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Fixed loopback test for correct network order
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131
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516 /* An IP equivalent to IN6_IS_ADDR_LOOPBACK */ |
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517 #ifndef IN_IS_ADDR_LOOPBACK |
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518 #define IN_IS_ADDR_LOOPBACK(a) \ |
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519 ((((long int) (a)->s_addr) & ntohl(0xff000000)) == ntohl(0x7f000000)) |
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520 #endif /* IN_IS_ADDR_LOOPBACK */ |
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521 |
|
135
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522 /* An IP equivalent to IN6_IS_ADDR_UNSPECIFIED */ |
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523 #ifndef IN_IS_ADDR_UNSPECIFIED |
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524 #define IN_IS_ADDR_UNSPECIFIED(a) \ |
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525 (((long int) (a)->s_addr) == 0x00000000) |
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526 #endif /* IN_IS_ADDR_UNSPECIFIED */ |
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527 |
| 0 | 528 /* create a V4MAPPED address */ |
| 529 #define IN6_ADDR_V4MAP( a6, a4 ) { \ | |
| 530 ((uint32_t *)(a6))[0] = 0; \ | |
| 531 ((uint32_t *)(a6))[1] = 0; \ | |
| 532 ((uint32_t *)(a6))[2] = htonl(0xffff); \ | |
| 533 ((uint32_t *)(a6))[3] = (uint32_t)(a4); \ | |
| 534 } | |
| 535 | |
| 536 /* Retrieve a v4 value from V4MAPPED address ( takes a s6_addr as param) */ | |
| 537 #define IN6_ADDR_V4UNMAP( a6 ) \ | |
| 538 (((in_addr_t *)(a6))[3]) | |
| 539 | |
| 540 | |
| 541 /* We provide macros to convert 64 bit values to and from network byte-order, on systems where it is not already provided. */ | |
|
226
406f74f0789b
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542 #ifndef HAVE_NTOHLL /* Defined by the cmake step, if the ntohll symbol is defined on the system */ |
| 0 | 543 # if HOST_BIG_ENDIAN |
| 544 /* In big-endian systems, we don't have to change the values, since the order is the same as network */ | |
| 545 # define ntohll(x) (x) | |
| 546 # define htonll(x) (x) | |
| 547 # else /* HOST_BIG_ENDIAN */ | |
| 548 /* For these systems, we must reverse the bytes. Use ntohl and htonl on sub-32 blocs, and inverse these blocs. */ | |
| 549 # define ntohll(x) (typeof (x))( (((uint64_t)ntohl( (uint32_t)(x))) << 32 ) | ((uint64_t) ntohl( ((uint64_t)(x)) >> 32 ))) | |
| 550 # define htonll(x) (typeof (x))( (((uint64_t)htonl( (uint32_t)(x))) << 32 ) | ((uint64_t) htonl( ((uint64_t)(x)) >> 32 ))) | |
| 551 # endif /* HOST_BIG_ENDIAN */ | |
| 552 #endif /* HAVE_NTOHLL */ | |
| 553 | |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
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554 /* This macro will give the next multiple of 4 for an integer (used for padding sizes of AVP). */ |
| 0 | 555 #define PAD4(_x) ((_x) + ( (4 - (_x)) & 3 ) ) |
| 556 | |
|
226
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557 /* Useful to display any value as (safe) ASCII (will garbage UTF-8 output...) */ |
| 0 | 558 #define ASCII(_c) ( ((_c < 32) || (_c > 127)) ? ( _c ? '?' : ' ' ) : _c ) |
| 559 | |
| 560 /* Compare timespec structures */ | |
| 561 #define TS_IS_INFERIOR( ts1, ts2 ) \ | |
| 562 ( ((ts1)->tv_sec < (ts2)->tv_sec ) \ | |
|
5
c2d2729e3603
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563 || (((ts1)->tv_sec == (ts2)->tv_sec ) && ((ts1)->tv_nsec < (ts2)->tv_nsec) )) |
| 0 | 564 |
|
542
0b6cee362f5d
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565 /* This gives a good size for buffered reads */ |
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566 #ifndef BUFSIZ |
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567 #define BUFSIZ 96 |
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568 #endif /* BUFSIZ */ |
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569 |
|
706
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570 /* This gives the length of a const string */ |
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571 #define CONSTSTRLEN( str ) (sizeof(str) - 1) |
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572 |
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573 |
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574 /*============================================================*/ |
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575 /* BINARY STRINGS */ |
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576 /*============================================================*/ |
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577 |
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578 /* Compute a hash value of a binary string. |
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579 The hash must remain local to this machine, there is no guarantee that same input |
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580 will give same output on a different system (endianness) */ |
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581 uint32_t fd_os_hash ( uint8_t * string, size_t len ); |
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582 |
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583 /* This type used for binary strings that contain no \0 except as their last character. |
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584 It means some string operations can be used on it. */ |
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585 typedef uint8_t * os0_t; |
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586 |
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587 /* Same as strdup but for os0_t strings */ |
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588 os0_t os0dup_int(os0_t s, size_t l); |
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589 #define os0dup( _s, _l) (void *)os0dup_int((os0_t)(_s), _l) |
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590 |
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591 /* Check that an octet string value can be used as os0_t */ |
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592 static __inline__ int fd_os_is_valid_os0(uint8_t * os, size_t oslen) { |
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593 /* The only situation where it is not valid is when it contains a \0 inside the octet string */ |
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594 return (memchr(os, '\0', oslen) == NULL); |
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595 } |
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596 |
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597 /* The following type denotes a verified DiameterIdentity value (that contains only pure letters, digits, hyphen, dot) */ |
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598 typedef char * DiamId_t; |
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599 |
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600 /* Maximum length of a hostname we accept */ |
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601 #ifndef HOST_NAME_MAX |
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602 #define HOST_NAME_MAX 512 |
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603 #endif /* HOST_NAME_MAX */ |
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604 |
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605 /* Check if a binary string contains a valid Diameter Identity value. |
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606 rfc3588 states explicitely that such a Diameter Identity consists only of ASCII characters. */ |
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607 int fd_os_is_valid_DiameterIdentity(uint8_t * os, size_t ossz); |
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608 |
|
717
571b3abaa5df
Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
706
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changeset
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609 /* The following function validates a string as a Diameter Identity or applies the IDNA transformation on it |
|
571b3abaa5df
Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
706
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changeset
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610 if *inoutsz is != 0 on entry, *id may not be \0-terminated. |
|
571b3abaa5df
Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
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changeset
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611 memory has the following meaning: 0: *id can be realloc'd. 1: *id must be malloc'd on output (was static) |
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Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
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612 */ |
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571b3abaa5df
Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
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changeset
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613 int fd_os_validate_DiameterIdentity(char ** id, size_t * inoutsz, int memory); |
|
706
4ffbc9f1e922
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614 |
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615 /* Create an order relationship for binary strings (not needed to be \0 terminated). |
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4ffbc9f1e922
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616 It does NOT mimic strings relationships so that it is more efficient. It is case sensitive. |
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617 (the strings are actually first ordered by their lengh, then by their bytes contents) |
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618 returns: -1 if os1 < os2; +1 if os1 > os2; 0 if they are equal */ |
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Large UNTESTED commit with the following changes:
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619 int fd_os_cmp_int(os0_t os1, size_t os1sz, os0_t os2, size_t os2sz); |
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620 #define fd_os_cmp(_o1, _l1, _o2, _l2) fd_os_cmp_int((os0_t)(_o1), _l1, (os0_t)(_o2), _l2) |
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621 |
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622 /* A roughly case-insensitive variant, which actually only compares ASCII chars (0-127) in a case-insentitive maneer |
|
738
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623 -- it does not support locales where a lowercase letter uses more space than upper case, such as ? -> ss |
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624 It is slower than fd_os_cmp. |
|
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625 Note that the result is NOT the same as strcasecmp !!! |
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626 |
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627 This function gives the same order as fd_os_cmp, except when it finds 2 strings to be equal. |
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628 However this is not always sufficient: |
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d666051658bd
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629 for example fd_os_cmp gives: "Ac" < "aB" < "aa" |
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630 if you attempt to fd_os_almostcasesrch "Aa" you will actually have to go past "aB" which is > "Aa". |
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631 Therefore you can use the maybefurther parameter. |
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632 This parameter is 1 on return if os1 may have been stored further that os2 (assuming os2 values are ordered by fd_os_cmp) |
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633 and 0 if we are sure that it is not the case. |
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634 When looping through a list of fd_os_cmp classified values, this parameter must be used to stop looping, in addition to the comp result. |
|
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635 */ |
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636 int fd_os_almostcasesrch_int(uint8_t * os1, size_t os1sz, uint8_t * os2, size_t os2sz, int * maybefurther); |
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637 #define fd_os_almostcasesrch(_o1, _l1, _o2, _l2, _mb) fd_os_almostcasesrch_int((os0_t)(_o1), _l1, (os0_t)(_o2), _l2, _mb) |
| 0 | 638 |
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639 /* Analyze a DiameterURI and return its components. |
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640 Return EINVAL if the URI is not valid. |
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641 *diamid is malloc'd on function return and must be freed (it is processed by fd_os_validate_DiameterIdentity). |
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642 *secure is 0 (no security) or 1 (security enabled) on return. |
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643 *port is 0 (default) or a value in host byte order on return. |
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644 *transport is 0 (default) or IPPROTO_* on return. |
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645 *proto is 0 (default) or 'd' (diameter), 'r' (radius), or 't' (tacacs+) on return. |
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646 */ |
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647 int fd_os_parse_DiameterURI(uint8_t * uri, size_t urisz, DiamId_t * diamid, size_t * diamidlen, int * secure, uint16_t * port, int * transport, char *proto); |
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648 |
| 0 | 649 /*============================================================*/ |
| 650 /* THREADS */ | |
| 651 /*============================================================*/ | |
| 652 | |
| 653 /* Terminate a thread */ | |
| 654 static __inline__ int fd_thr_term(pthread_t * th) | |
| 655 { | |
| 656 void * th_ret = NULL; | |
| 657 | |
| 658 CHECK_PARAMS(th); | |
| 659 | |
| 660 /* Test if it was already terminated */ | |
| 661 if (*th == (pthread_t)NULL) | |
| 662 return 0; | |
| 663 | |
| 664 /* Cancel the thread if it is still running - ignore error if it was already terminated */ | |
| 665 (void) pthread_cancel(*th); | |
| 666 | |
| 667 /* Then join the thread */ | |
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668 CHECK_POSIX( pthread_join(*th, &th_ret) ); |
| 0 | 669 |
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670 if (th_ret == PTHREAD_CANCELED) { |
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671 TRACE_DEBUG(ANNOYING, "The thread %p was canceled", *th); |
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672 } else { |
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673 TRACE_DEBUG(CALL, "The thread %p returned %x", *th, th_ret); |
| 0 | 674 } |
| 675 | |
| 676 /* Clean the location */ | |
| 677 *th = (pthread_t)NULL; | |
| 678 | |
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679 return 0; |
| 0 | 680 } |
| 681 | |
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682 |
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683 /************* |
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684 Cancelation cleanup handlers for common objects |
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685 *************/ |
| 0 | 686 static __inline__ void fd_cleanup_mutex( void * mutex ) |
| 687 { | |
| 688 CHECK_POSIX_DO( pthread_mutex_unlock((pthread_mutex_t *)mutex), /* */); | |
| 689 } | |
| 690 | |
| 691 static __inline__ void fd_cleanup_rwlock( void * rwlock ) | |
| 692 { | |
| 693 CHECK_POSIX_DO( pthread_rwlock_unlock((pthread_rwlock_t *)rwlock), /* */); | |
| 694 } | |
| 695 | |
| 696 static __inline__ void fd_cleanup_buffer( void * buffer ) | |
| 697 { | |
| 698 free(buffer); | |
| 699 } | |
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700 static __inline__ void fd_cleanup_socket(void * sockptr) |
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701 { |
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702 if (sockptr && (*(int *)sockptr > 0)) { |
| 179 | 703 CHECK_SYS_DO( close(*(int *)sockptr), /* ignore */ ); |
| 184 | 704 *(int *)sockptr = -1; |
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705 } |
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706 } |
| 0 | 707 |
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708 |
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709 /*============================================================*/ |
| 0 | 710 /* LISTS */ |
| 711 /*============================================================*/ | |
| 712 | |
| 713 /* The following structure represents a chained list element */ | |
| 714 struct fd_list { | |
| 715 struct fd_list *next; /* next element in the list */ | |
| 716 struct fd_list *prev; /* previous element in the list */ | |
| 717 struct fd_list *head; /* head of the list */ | |
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718 void *o; /* additional pointer, used for any purpose (ex: start of the parent object) */ |
| 0 | 719 }; |
| 720 | |
| 721 /* Initialize a list element */ | |
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722 #define FD_LIST_INITIALIZER( _list_name ) \ |
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723 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = NULL } |
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724 #define FD_LIST_INITIALIZER_O( _list_name, _obj ) \ |
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725 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = _obj } |
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726 void fd_list_init ( struct fd_list * list, void * obj ); |
| 0 | 727 |
| 728 /* Return boolean, true if the list is empty */ | |
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729 #define FD_IS_LIST_EMPTY( _list ) ((((struct fd_list *)(_list))->head == (_list)) && (((struct fd_list *)(_list))->next == (_list))) |
| 0 | 730 |
| 731 /* Insert an item in a list at known position */ | |
| 732 void fd_list_insert_after ( struct fd_list * ref, struct fd_list * item ); | |
| 733 void fd_list_insert_before ( struct fd_list * ref, struct fd_list * item ); | |
| 734 | |
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735 /* Move all elements from a list at the end of another */ |
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736 void fd_list_move_end(struct fd_list * ref, struct fd_list * senti); |
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737 |
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738 /* 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 | 739 int fd_list_insert_ordered( struct fd_list * head, struct fd_list * item, int (*cmp_fct)(void *, void *), void ** ref_duplicate); |
| 740 | |
| 741 /* Unlink an item from a list */ | |
| 742 void fd_list_unlink ( struct fd_list * item ); | |
| 743 | |
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744 |
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745 |
| 0 | 746 |
| 747 /*============================================================*/ | |
| 748 /* DICTIONARY */ | |
| 749 /*============================================================*/ | |
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750 |
| 0 | 751 /* Structure that contains the complete dictionary definitions */ |
| 752 struct dictionary; | |
| 753 | |
| 754 /* Structure that contains a dictionary object */ | |
| 755 struct dict_object; | |
| 756 | |
| 757 /* Types of object in the dictionary. */ | |
| 758 enum dict_object_type { | |
| 759 DICT_VENDOR = 1, /* Vendor */ | |
| 760 DICT_APPLICATION, /* Diameter Application */ | |
| 761 DICT_TYPE, /* AVP data type */ | |
| 762 DICT_ENUMVAL, /* Named constant (value of an enumerated AVP type) */ | |
| 763 DICT_AVP, /* AVP */ | |
| 764 DICT_COMMAND, /* Diameter Command */ | |
| 765 DICT_RULE /* a Rule for AVP in command or grouped AVP */ | |
| 766 #define DICT_TYPE_MAX DICT_RULE | |
| 767 }; | |
| 768 | |
| 769 /* Initialize a dictionary */ | |
| 770 int fd_dict_init(struct dictionary ** dict); | |
| 771 /* Destroy a dictionary */ | |
| 772 int fd_dict_fini(struct dictionary ** dict); | |
| 773 | |
| 774 /* | |
| 775 * FUNCTION: fd_dict_new | |
| 776 * | |
| 777 * PARAMETERS: | |
| 778 * dict : Pointer to the dictionnary where the object is created | |
| 779 * type : What kind of object must be created | |
| 780 * data : pointer to the data for the object. | |
| 781 * type parameter is used to determine the type of data (see bellow for detail). | |
| 782 * parent : a reference to a parent object, if needed. | |
| 783 * ref : upon successful creation, reference to new object is stored here if !null. | |
| 784 * | |
| 785 * DESCRIPTION: | |
| 786 * Create a new object in the dictionary. | |
| 787 * See following object sections in this header file for more information on data and parent parameters format. | |
| 788 * | |
| 789 * RETURN VALUE: | |
| 790 * 0 : The object is created in the dictionary. | |
| 791 * EINVAL : A parameter is invalid. | |
| 792 * EEXIST : This object is already defined in the dictionary (with conflicting data). | |
| 793 * If "ref" is not NULL, it points to the existing element on return. | |
| 794 * (other standard errors may be returned, too, with their standard meaning. Example: | |
| 795 * ENOMEM : Memory allocation for the new object element failed.) | |
| 796 */ | |
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797 int fd_dict_new ( struct dictionary * dict, enum dict_object_type type, void * data, struct dict_object * parent, struct dict_object ** ref ); |
| 0 | 798 |
| 799 /* | |
| 800 * FUNCTION: fd_dict_search | |
| 801 * | |
| 802 * PARAMETERS: | |
| 803 * dict : Pointer to the dictionnary where the object is searched | |
| 804 * type : type of object that is being searched | |
| 805 * criteria : how the object must be searched. See object-related sections bellow for more information. | |
| 806 * what : depending on criteria, the data that must be searched. | |
| 807 * result : On successful return, pointer to the object is stored here. | |
| 808 * retval : this value is returned if the object is not found and result is not NULL. | |
| 809 * | |
| 810 * DESCRIPTION: | |
| 811 * Perform a search in the dictionary. | |
| 812 * See the object-specific sections bellow to find how to look for each objects. | |
| 813 * If the "result" parameter is NULL, the function is used to check if an object is in the dictionary. | |
| 814 * Otherwise, a reference to the object is stored in result if found. | |
| 815 * If result is not NULL and the object is not found, retval is returned (should be 0 or ENOENT usually) | |
| 816 * | |
| 817 * RETURN VALUE: | |
| 818 * 0 : The object has been found in the dictionary, or *result is NULL. | |
| 819 * EINVAL : A parameter is invalid. | |
| 820 * ENOENT : No matching object has been found, and result was NULL. | |
| 821 */ | |
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822 int fd_dict_search ( struct dictionary * dict, enum dict_object_type type, int criteria, void * what, struct dict_object ** result, int retval ); |
| 0 | 823 |
| 824 /* Special case: get the generic error command object */ | |
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825 int fd_dict_get_error_cmd(struct dictionary * dict, struct dict_object ** obj); |
| 0 | 826 |
| 827 /* | |
| 828 * FUNCTION: fd_dict_getval | |
| 829 * | |
| 830 * PARAMETERS: | |
| 831 * object : Pointer to a dictionary object. | |
| 832 * data : pointer to a structure to hold the data for the object. | |
| 833 * The type is the same as "data" parameter in fd_dict_new function. | |
| 834 * | |
| 835 * DESCRIPTION: | |
| 836 * Retrieve content of a dictionary object. | |
| 837 * See following object sections in this header file for more information on data and parent parameters format. | |
| 838 * | |
| 839 * RETURN VALUE: | |
| 840 * 0 : The content of the object has been retrieved. | |
| 841 * EINVAL : A parameter is invalid. | |
| 842 */ | |
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843 int fd_dict_getval ( struct dict_object * object, void * val); |
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844 int fd_dict_gettype ( struct dict_object * object, enum dict_object_type * type); |
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845 int fd_dict_getdict ( struct dict_object * object, struct dictionary ** dict); |
| 0 | 846 |
| 847 /* Debug functions */ | |
| 848 void fd_dict_dump_object(struct dict_object * obj); | |
| 849 void fd_dict_dump(struct dictionary * dict); | |
| 850 | |
| 851 /* | |
| 852 *************************************************************************** | |
| 853 * | |
| 854 * Vendor object | |
| 855 * | |
| 856 * These types are used to manage vendors in the dictionary | |
| 857 * | |
| 858 *************************************************************************** | |
| 859 */ | |
| 860 | |
| 861 /* Type to hold a Vendor ID: "SMI Network Management Private Enterprise Codes" (RFC3232) */ | |
| 862 typedef uint32_t vendor_id_t; | |
| 863 | |
| 864 /* Type to hold data associated to a vendor */ | |
| 865 struct dict_vendor_data { | |
| 866 vendor_id_t vendor_id; /* ID of a vendor */ | |
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867 char * vendor_name; /* The name of this vendor */ |
| 0 | 868 }; |
| 869 | |
| 870 /* The criteria for searching a vendor object in the dictionary */ | |
| 871 enum { | |
| 872 VENDOR_BY_ID = 10, /* "what" points to a vendor_id_t */ | |
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873 VENDOR_BY_NAME, /* "what" points to a char * */ |
| 0 | 874 VENDOR_OF_APPLICATION /* "what" points to a struct dict_object containing an application (see bellow) */ |
| 875 }; | |
| 876 | |
| 877 /*** | |
| 878 * API usage : | |
| 879 | |
| 880 Note: the value of "vendor_name" is copied when the object is created, and the string may be disposed afterwards. | |
| 881 On the other side, when value is retrieved with dict_getval, the string is not copied and MUST NOT be freed. It will | |
| 882 be freed automatically along with the object itself with call to dict_fini later. | |
| 883 | |
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884 - fd_dict_new: |
| 0 | 885 The "parent" parameter is not used for vendors. |
| 886 Sample code to create a vendor: | |
| 887 { | |
| 888 int ret; | |
| 889 struct dict_object * myvendor; | |
| 890 struct dict_vendor_data myvendordata = { 23455, "my vendor name" }; -- just an example... | |
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891 ret = fd_dict_new ( dict, DICT_VENDOR, &myvendordata, NULL, &myvendor ); |
| 0 | 892 } |
| 893 | |
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894 - fd_dict_search: |
| 0 | 895 Sample codes to look for a vendor object, by its id or name: |
| 896 { | |
| 897 int ret; | |
| 898 struct dict_object * vendor_found; | |
| 899 vendor_id_t vendorid = 23455; | |
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900 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_ID, &vendorid, &vendor_found, ENOENT); |
| 0 | 901 - or - |
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902 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &vendor_found, ENOENT); |
| 0 | 903 } |
| 904 | |
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905 - fd_dict_getval: |
| 0 | 906 Sample code to retrieve the data from a vendor object: |
| 907 { | |
| 908 int ret; | |
| 909 struct dict_object * myvendor; | |
| 910 struct dict_vendor_data myvendordata; | |
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911 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &myvendor, ENOENT); |
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912 ret = fd_dict_getval ( myvendor, &myvendordata ); |
| 0 | 913 printf("my vendor id: %d\n", myvendordata.vendor_id ); |
| 914 } | |
| 915 | |
| 916 */ | |
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917 |
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918 /* Special function: */ |
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919 uint32_t * fd_dict_get_vendorid_list(struct dictionary * dict); |
| 0 | 920 |
| 921 /* | |
| 922 *************************************************************************** | |
| 923 * | |
| 924 * Application object | |
| 925 * | |
| 926 * These types are used to manage Diameter applications in the dictionary | |
| 927 * | |
| 928 *************************************************************************** | |
| 929 */ | |
| 930 | |
| 931 /* Type to hold a Diameter application ID: IANA assigned value for this application. */ | |
| 932 typedef uint32_t application_id_t; | |
| 933 | |
| 934 /* Type to hold data associated to an application */ | |
| 935 struct dict_application_data { | |
| 936 application_id_t application_id; /* ID of the application */ | |
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937 char * application_name; /* The name of this application */ |
| 0 | 938 }; |
| 939 | |
| 940 /* The criteria for searching an application object in the dictionary */ | |
| 941 enum { | |
| 942 APPLICATION_BY_ID = 20, /* "what" points to a application_id_t */ | |
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943 APPLICATION_BY_NAME, /* "what" points to a char * */ |
| 0 | 944 APPLICATION_OF_TYPE, /* "what" points to a struct dict_object containing a type object (see bellow) */ |
| 945 APPLICATION_OF_COMMAND /* "what" points to a struct dict_object containing a command (see bellow) */ | |
| 946 }; | |
| 947 | |
| 948 /*** | |
| 949 * API usage : | |
| 950 | |
| 951 The "parent" parameter of dict_new may point to a vendor object to inform of what vendor defines the application. | |
| 952 for standard-track applications, the "parent" parameter should be NULL. | |
| 953 The vendor associated to an application is retrieved with VENDOR_OF_APPLICATION search criteria on vendors. | |
| 954 | |
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955 - fd_dict_new: |
| 0 | 956 Sample code for application creation: |
| 957 { | |
| 958 int ret; | |
| 959 struct dict_object * vendor; | |
| 960 struct dict_object * appl; | |
| 961 struct dict_vendor_data vendor_data = { | |
| 962 23455, | |
| 963 "my vendor name" | |
| 964 }; | |
| 965 struct dict_application_data app_data = { | |
| 966 9789, | |
| 967 "my vendor's application" | |
| 968 }; | |
| 969 | |
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970 ret = fd_dict_new ( dict, DICT_VENDOR, &vendor_data, NULL, &vendor ); |
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971 ret = fd_dict_new ( dict, DICT_APPLICATION, &app_data, vendor, &appl ); |
| 0 | 972 } |
| 973 | |
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974 - fd_dict_search: |
| 0 | 975 Sample code to retrieve the vendor of an application |
| 976 { | |
| 977 int ret; | |
| 978 struct dict_object * vendor, * appli; | |
| 979 | |
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980 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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981 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_OF_APPLICATION, appli, &vendor, ENOENT); |
| 0 | 982 } |
| 983 | |
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984 - fd_dict_getval: |
| 0 | 985 Sample code to retrieve the data from an application object: |
| 986 { | |
| 987 int ret; | |
| 988 struct dict_object * appli; | |
| 989 struct dict_application_data appl_data; | |
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990 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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991 ret = fd_dict_getval ( appli, &appl_data ); |
| 0 | 992 printf("my application id: %s\n", appl_data.application_id ); |
| 993 } | |
| 994 | |
| 995 */ | |
| 996 | |
| 997 /* | |
| 998 *************************************************************************** | |
| 999 * | |
| 1000 * Type object | |
| 1001 * | |
| 1002 * These types are used to manage AVP data types in the dictionary | |
| 1003 * | |
| 1004 *************************************************************************** | |
| 1005 */ | |
| 1006 | |
| 1007 /* Type to store any AVP value */ | |
| 1008 union avp_value { | |
| 1009 struct { | |
| 1010 uint8_t *data; /* bytes buffer */ | |
| 1011 size_t len; /* length of the data buffer */ | |
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1012 } os; /* Storage for an octet string */ |
| 0 | 1013 int32_t i32; /* integer 32 */ |
| 1014 int64_t i64; /* integer 64 */ | |
| 1015 uint32_t u32; /* unsigned 32 */ | |
| 1016 uint64_t u64; /* unsigned 64 */ | |
| 1017 float f32; /* float 32 */ | |
| 1018 double f64; /* float 64 */ | |
| 1019 }; | |
| 1020 | |
| 1021 /* These are the basic AVP types defined in RFC3588bis */ | |
| 1022 enum dict_avp_basetype { | |
| 1023 AVP_TYPE_GROUPED, | |
| 1024 AVP_TYPE_OCTETSTRING, | |
| 1025 AVP_TYPE_INTEGER32, | |
| 1026 AVP_TYPE_INTEGER64, | |
| 1027 AVP_TYPE_UNSIGNED32, | |
| 1028 AVP_TYPE_UNSIGNED64, | |
| 1029 AVP_TYPE_FLOAT32, | |
| 1030 AVP_TYPE_FLOAT64 | |
| 1031 #define AVP_TYPE_MAX AVP_TYPE_FLOAT64 | |
| 1032 }; | |
| 1033 | |
| 1034 /* Callbacks that can be associated with a derived type to easily interpret the AVP value. */ | |
| 1035 /* | |
| 1036 * CALLBACK: dict_avpdata_interpret | |
| 1037 * | |
| 1038 * PARAMETERS: | |
| 1039 * val : Pointer to the AVP value that must be interpreted. | |
| 1040 * interpreted : The result of interpretation is stored here. The format and meaning depends on each type. | |
| 1041 * | |
| 1042 * DESCRIPTION: | |
| 1043 * This callback can be provided with a derived type in order to facilitate the interpretation of formated data. | |
| 1044 * For example, when an AVP of type "Address" is received, it can be used to convert the octetstring into a struct sockaddr. | |
| 1045 * This callback is not called directly, but through the message's API msg_avp_value_interpret function. | |
| 1046 * | |
| 1047 * RETURN VALUE: | |
| 1048 * 0 : Operation complete. | |
| 1049 * !0 : An error occurred, the error code is returned. | |
| 1050 */ | |
| 1051 typedef int (*dict_avpdata_interpret) (union avp_value * value, void * interpreted); | |
| 1052 /* | |
| 1053 * CALLBACK: dict_avpdata_encode | |
| 1054 * | |
| 1055 * PARAMETERS: | |
| 1056 * data : The formated data that must be stored in the AVP value. | |
| 1057 * val : Pointer to the AVP value storage area where the data must be stored. | |
| 1058 * | |
| 1059 * DESCRIPTION: | |
| 1060 * This callback can be provided with a derived type in order to facilitate the encoding of formated data. | |
| 1061 * For example, it can be used to convert a struct sockaddr in an AVP value of type Address. | |
| 1062 * This callback is not called directly, but through the message's API msg_avp_value_encode function. | |
| 1063 * If the callback is defined for an OctetString based type, the created string must be malloc'd. free will be called | |
| 1064 * automatically later. | |
| 1065 * | |
| 1066 * RETURN VALUE: | |
| 1067 * 0 : Operation complete. | |
| 1068 * !0 : An error occurred, the error code is returned. | |
| 1069 */ | |
| 1070 typedef int (*dict_avpdata_encode) (void * data, union avp_value * val); | |
| 1071 | |
| 1072 | |
| 1073 /* Type to hold data associated to a derived AVP data type */ | |
| 1074 struct dict_type_data { | |
| 1075 enum dict_avp_basetype type_base; /* How the data of such AVP must be interpreted */ | |
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1076 char * type_name; /* The name of this type */ |
| 0 | 1077 dict_avpdata_interpret type_interpret;/* cb to convert the AVP value in more comprehensive format (or NULL) */ |
| 1078 dict_avpdata_encode type_encode; /* cb to convert formatted data into an AVP value (or NULL) */ | |
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1079 void (*type_dump)(union avp_value * val, FILE * fstr); /* cb called by fd_msg_dump_one for this type of data (if != NULL), to dump the AVP value in fstr */ |
| 0 | 1080 }; |
| 1081 | |
| 1082 /* The criteria for searching a type object in the dictionary */ | |
| 1083 enum { | |
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1084 TYPE_BY_NAME = 30, /* "what" points to a char * */ |
| 0 | 1085 TYPE_OF_ENUMVAL, /* "what" points to a struct dict_object containing an enumerated constant (DICT_ENUMVAL, see bellow). */ |
| 1086 TYPE_OF_AVP /* "what" points to a struct dict_object containing an AVP object. */ | |
| 1087 }; | |
| 1088 | |
| 1089 | |
| 1090 /*** | |
| 1091 * API usage : | |
| 1092 | |
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1093 - fd_dict_new: |
| 0 | 1094 The "parent" parameter may point to an application object, when a type is defined by a Diameter application. |
| 1095 | |
| 1096 Sample code: | |
| 1097 { | |
| 1098 int ret; | |
| 1099 struct dict_object * mytype; | |
| 1100 struct dict_type_data mytypedata = | |
| 1101 { | |
| 1102 AVP_TYPE_OCTETSTRING, | |
| 1103 "Address", | |
| 1104 NULL, | |
| 1105 NULL | |
| 1106 }; | |
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1107 ret = fd_dict_new ( dict, DICT_TYPE, &mytypedata, NULL, &mytype ); |
| 0 | 1108 } |
| 1109 | |
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1110 - fd_dict_search: |
| 0 | 1111 Sample code: |
| 1112 { | |
| 1113 int ret; | |
| 1114 struct dict_object * address_type; | |
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1115 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Address", &address_type, ENOENT); |
| 0 | 1116 } |
| 1117 | |
| 1118 */ | |
| 1119 | |
| 1120 /* | |
| 1121 *************************************************************************** | |
| 1122 * | |
| 1123 * Enumerated values object | |
| 1124 * | |
| 1125 * These types are used to manage named constants of some AVP, | |
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1126 * for enumerated types. freeDiameter allows constants for types others than Unsigned32 |
| 0 | 1127 * |
| 1128 *************************************************************************** | |
| 1129 */ | |
| 1130 | |
| 1131 /* Type to hold data of named constants for AVP */ | |
| 1132 struct dict_enumval_data { | |
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1133 char * enum_name; /* The name of this constant */ |
| 0 | 1134 union avp_value enum_value; /* Value of the constant. Union term depends on parent type's base type. */ |
| 1135 }; | |
| 1136 | |
| 1137 /* The criteria for searching a constant in the dictionary */ | |
| 1138 enum { | |
| 1139 ENUMVAL_BY_STRUCT = 40, /* "what" points to a struct dict_enumval_request as defined bellow */ | |
| 1140 }; | |
| 1141 | |
| 1142 struct dict_enumval_request { | |
| 1143 /* Identifier of the parent type, one of the following must not be NULL */ | |
| 1144 struct dict_object *type_obj; | |
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1145 char * type_name; |
| 0 | 1146 |
| 1147 /* Search criteria for the constant */ | |
| 1148 struct dict_enumval_data search; /* search.enum_value is used only if search.enum_name == NULL */ | |
| 1149 }; | |
| 1150 | |
| 1151 /*** | |
| 1152 * API usage : | |
| 1153 | |
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1154 - fd_dict_new: |
| 0 | 1155 The "parent" parameter must point to a derived type object. |
| 1156 Sample code to create a type "Boolean" with two constants "True" and "False": | |
| 1157 { | |
| 1158 int ret; | |
| 1159 struct dict_object * type_boolean; | |
| 1160 struct dict_type_data type_boolean_data = | |
| 1161 { | |
| 1162 AVP_TYPE_INTEGER32, | |
| 1163 "Boolean", | |
| 1164 NULL, | |
| 1165 NULL | |
| 1166 }; | |
| 1167 struct dict_enumval_data boolean_false = | |
| 1168 { | |
| 1169 .enum_name="False", | |
| 1170 .enum_value.i32 = 0 | |
| 1171 }; | |
| 1172 struct dict_enumval_data boolean_true = | |
| 1173 { | |
| 1174 .enum_name="True", | |
| 1175 .enum_value.i32 = -1 | |
| 1176 }; | |
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1177 ret = fd_dict_new ( dict, DICT_TYPE, &type_boolean_data, NULL, &type_boolean ); |
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1178 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_false, type_boolean, NULL ); |
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1179 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_true , type_boolean, NULL ); |
| 0 | 1180 |
| 1181 } | |
| 1182 | |
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1183 - fd_dict_search: |
| 0 | 1184 Sample code to look for a constant name, by its value: |
| 1185 { | |
| 1186 int ret; | |
| 1187 struct dict_object * value_found; | |
| 1188 struct dict_enumval_request boolean_by_value = | |
| 1189 { | |
| 1190 .type_name = "Boolean", | |
| 1191 .search.enum_name=NULL, | |
| 1192 .search.enum_value.i32 = -1 | |
| 1193 }; | |
| 1194 | |
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1195 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
| 0 | 1196 } |
| 1197 | |
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1198 - fd_dict_getval: |
| 0 | 1199 Sample code to retrieve the data from a constant object: |
| 1200 { | |
| 1201 int ret; | |
| 1202 struct dict_object * value_found; | |
| 1203 struct dict_enumval_data boolean_data = NULL; | |
| 1204 struct dict_enumval_request boolean_by_value = | |
| 1205 { | |
| 1206 .type_name = "Boolean", | |
| 1207 .search.enum_name=NULL, | |
| 1208 .search.enum_value.i32 = 0 | |
| 1209 }; | |
| 1210 | |
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1211 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
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1212 ret = fd_dict_getval ( value_found, &boolean_data ); |
| 0 | 1213 printf(" Boolean with value 0: %s", boolean_data.enum_name ); |
| 1214 } | |
| 1215 */ | |
| 1216 | |
| 1217 /* | |
| 1218 *************************************************************************** | |
| 1219 * | |
| 1220 * AVP object | |
| 1221 * | |
| 1222 * These objects are used to manage AVP definitions in the dictionary | |
| 1223 * | |
| 1224 *************************************************************************** | |
| 1225 */ | |
| 1226 | |
| 1227 /* Type to hold an AVP code. For vendor 0, these codes are assigned by IANA. Otherwise, it is managed by the vendor */ | |
| 1228 typedef uint32_t avp_code_t; | |
| 1229 | |
| 1230 /* Values of AVP flags */ | |
| 1231 #define AVP_FLAG_VENDOR 0x80 | |
| 1232 #define AVP_FLAG_MANDATORY 0x40 | |
| 1233 #define AVP_FLAG_RESERVED3 0x20 | |
| 1234 #define AVP_FLAG_RESERVED4 0x10 | |
| 1235 #define AVP_FLAG_RESERVED5 0x08 | |
| 1236 #define AVP_FLAG_RESERVED6 0x04 | |
| 1237 #define AVP_FLAG_RESERVED7 0x02 | |
| 1238 #define AVP_FLAG_RESERVED8 0x01 | |
| 1239 | |
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1240 /* For dumping flags and values */ |
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1241 #define DUMP_AVPFL_str "%c%c" |
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1242 #define DUMP_AVPFL_val(_val) (_val & AVP_FLAG_VENDOR)?'V':'-' , (_val & AVP_FLAG_MANDATORY)?'M':'-' |
| 0 | 1243 |
| 1244 /* Type to hold data associated to an avp */ | |
| 1245 struct dict_avp_data { | |
| 1246 avp_code_t avp_code; /* Code of the avp */ | |
| 1247 vendor_id_t avp_vendor; /* Vendor of the AVP, or 0 */ | |
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1248 char * avp_name; /* Name of this AVP */ |
| 0 | 1249 uint8_t avp_flag_mask; /* Mask of fixed AVP flags */ |
| 1250 uint8_t avp_flag_val; /* Values of the fixed flags */ | |
| 1251 enum dict_avp_basetype avp_basetype; /* Basic type of data found in the AVP */ | |
| 1252 }; | |
| 1253 | |
| 1254 /* The criteria for searching an avp object in the dictionary */ | |
| 1255 enum { | |
| 1256 AVP_BY_CODE = 50, /* "what" points to an avp_code_t, vendor is always 0 */ | |
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1257 AVP_BY_NAME, /* "what" points to a char *, vendor is always 0 */ |
| 0 | 1258 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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1259 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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1260 AVP_BY_NAME_ALL_VENDORS /* "what" points to a string. Might be quite slow... */ |
| 0 | 1261 }; |
| 1262 | |
| 1263 /* Struct used for some researchs */ | |
| 1264 struct dict_avp_request { | |
| 1265 vendor_id_t avp_vendor; | |
| 1266 avp_code_t avp_code; | |
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1267 char * avp_name; |
| 0 | 1268 }; |
| 1269 | |
| 1270 | |
| 1271 /*** | |
| 1272 * API usage : | |
| 1273 | |
| 1274 If "parent" parameter is not NULL during AVP creation, it must point to a DICT_TYPE object. | |
| 1275 The extended type is then attached to the AVP. In case where it is an enumerated type, the value of | |
| 1276 AVP is automatically interpreted in debug messages, and in message checks. | |
| 1277 The derived type of an AVP can be retrieved with: dict_search ( DICT_TYPE, TYPE_OF_AVP, avp, ... ) | |
| 1278 | |
| 1279 To create the rules (ABNF) for children of Grouped AVP, see the DICT_RULE related part. | |
| 1280 | |
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1281 - fd_dict_new: |
| 0 | 1282 Sample code for AVP creation: |
| 1283 { | |
| 1284 int ret; | |
| 1285 struct dict_object * user_name_avp; | |
| 1286 struct dict_object * boolean_type; | |
| 1287 struct dict_object * sample_boolean_avp; | |
| 1288 struct dict_avp_data user_name_data = { | |
| 1289 1, // code | |
| 1290 0, // vendor | |
| 1291 "User-Name", // name | |
| 1292 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 | |
| 1293 AVP_FLAG_MANDATORY, // the V flag must be cleared, the M flag must be set. | |
| 1294 AVP_TYPE_OCTETSTRING // User-Name AVP contains OctetString data (further precision such as UTF8String can be given with a parent derived type) | |
| 1295 }; | |
| 1296 struct dict_avp_data sample_boolean_data = { | |
| 1297 31337, | |
| 1298 23455, | |
| 1299 "Sample-Boolean", | |
| 1300 AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, | |
| 1301 AVP_FLAG_VENDOR, | |
| 1302 AVP_TYPE_INTEGER32 // This MUST be the same as parent type's | |
| 1303 }; | |
| 1304 | |
| 1305 -- Create an AVP with a base type -- | |
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1306 ret = fd_dict_new ( dict, DICT_AVP, &user_name_data, NULL, &user_name_avp ); |
| 0 | 1307 |
| 1308 -- Create an AVP with a derived type -- | |
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1309 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Boolean", &boolean_type, ENOENT); |
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1310 ret = fd_dict_new ( dict, DICT_AVP, &sample_boolean_data , boolean_type, &sample_boolean_avp ); |
| 0 | 1311 |
| 1312 } | |
| 1313 | |
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1314 - fd_dict_search: |
| 0 | 1315 Sample code to look for an AVP |
| 1316 { | |
| 1317 int ret; | |
| 1318 struct dict_object * avp_username; | |
| 1319 struct dict_object * avp_sampleboolean; | |
| 1320 struct dict_avp_request avpvendorboolean = | |
| 1321 { | |
| 1322 .avp_vendor = 23455, | |
| 1323 .avp_name = "Sample-Boolean" | |
| 1324 }; | |
| 1325 | |
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1326 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
| 0 | 1327 |
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1328 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME_AND_VENDOR, &avpvendorboolean, &avp_sampleboolean, ENOENT); |
| 0 | 1329 |
| 1330 } | |
| 1331 | |
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1332 - fd_dict_getval: |
| 0 | 1333 Sample code to retrieve the data from an AVP object: |
| 1334 { | |
| 1335 int ret; | |
| 1336 struct dict_object * avp_username; | |
| 1337 struct dict_avp_data user_name_data; | |
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1338 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
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1339 ret = fd_dict_getval ( avp_username, &user_name_data ); |
| 0 | 1340 printf("User-Name code: %d\n", user_name_data.avp_code ); |
| 1341 } | |
| 1342 | |
| 1343 */ | |
| 1344 | |
| 1345 /* | |
| 1346 *************************************************************************** | |
| 1347 * | |
| 1348 * Command object | |
| 1349 * | |
| 1350 * These types are used to manage commands objects in the dictionary | |
| 1351 * | |
| 1352 *************************************************************************** | |
| 1353 */ | |
| 1354 | |
| 1355 /* Type to hold a Diameter command code: IANA assigned values. 0x0-0x7fffff=standard, 0x800000-0xfffffd=vendors, 0xfffffe-0xffffff=experimental */ | |
| 1356 typedef uint32_t command_code_t; | |
| 1357 | |
| 1358 /* Values of command flags */ | |
| 1359 #define CMD_FLAG_REQUEST 0x80 | |
| 1360 #define CMD_FLAG_PROXIABLE 0x40 | |
| 1361 #define CMD_FLAG_ERROR 0x20 | |
| 1362 #define CMD_FLAG_RETRANSMIT 0x10 | |
| 1363 #define CMD_FLAG_RESERVED5 0x08 | |
| 1364 #define CMD_FLAG_RESERVED6 0x04 | |
| 1365 #define CMD_FLAG_RESERVED7 0x02 | |
| 1366 #define CMD_FLAG_RESERVED8 0x01 | |
| 1367 | |
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1368 /* For dumping flags and values */ |
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1369 #define DUMP_CMDFL_str "%c%c%c%c" |
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1370 #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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1371 |
| 0 | 1372 /* Type to hold data associated to a command */ |
| 1373 struct dict_cmd_data { | |
| 1374 command_code_t cmd_code; /* code of the command */ | |
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1375 char * cmd_name; /* Name of the command */ |
| 0 | 1376 uint8_t cmd_flag_mask; /* Mask of fixed-value flags */ |
| 1377 uint8_t cmd_flag_val; /* values of the fixed flags */ | |
| 1378 }; | |
| 1379 | |
| 1380 /* The criteria for searching an avp object in the dictionary */ | |
| 1381 enum { | |
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1382 CMD_BY_NAME = 60, /* "what" points to a char * */ |
| 0 | 1383 CMD_BY_CODE_R, /* "what" points to a command_code_t. The "Request" command is returned. */ |
| 1384 CMD_BY_CODE_A, /* "what" points to a command_code_t. The "Answer" command is returned. */ | |
| 1385 CMD_ANSWER /* "what" points to a struct dict_object of a request command. The corresponding "Answer" command is returned. */ | |
| 1386 }; | |
| 1387 | |
| 1388 | |
| 1389 /*** | |
| 1390 * API usage : | |
| 1391 | |
| 1392 The "parent" parameter of dict_new may point to an application object to inform of what application defines the command. | |
| 1393 The application associated to a command is retrieved with APPLICATION_OF_COMMAND search criteria on applications. | |
| 1394 | |
| 1395 To create the rules for children of commands, see the DICT_RULE related part. | |
| 1396 | |
| 1397 Note that the "Request" and "Answer" commands are two independant objects. This allows to have different rules for each. | |
| 1398 | |
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1399 - fd_dict_new: |
| 0 | 1400 Sample code for command creation: |
| 1401 { | |
| 1402 int ret; | |
| 1403 struct dict_object * cer; | |
| 1404 struct dict_object * cea; | |
| 1405 struct dict_cmd_data ce_data = { | |
| 1406 257, // code | |
| 1407 "Capabilities-Exchange-Request", // name | |
| 1408 CMD_FLAG_REQUEST, // mask | |
| 1409 CMD_FLAG_REQUEST // value. Only the "R" flag is constrained here, set. | |
| 1410 }; | |
| 1411 | |
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1412 ret = fd_dict_new (dict, DICT_COMMAND, &ce_data, NULL, &cer ); |
| 0 | 1413 |
| 1414 ce_data.cmd_name = "Capabilities-Exchange-Answer"; | |
| 1415 ce_data.cmd_flag_val = 0; // Same constraint on "R" flag, but this time it must be cleared. | |
| 1416 | |
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1417 ret = fd_dict_new ( dict, DICT_COMMAND, &ce_data, NULL, &cea ); |
| 0 | 1418 } |
| 1419 | |
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1420 - fd_dict_search: |
| 0 | 1421 Sample code to look for a command |
| 1422 { | |
| 1423 int ret; | |
| 1424 struct dict_object * cer, * cea; | |
| 1425 command_code_t code = 257; | |
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1426 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1427 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_CODE_R, &code, &cer, ENOENT); |
| 0 | 1428 } |
| 1429 | |
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1430 - fd_dict_getval: |
| 0 | 1431 Sample code to retrieve the data from a command object: |
| 1432 { | |
| 1433 int ret; | |
| 1434 struct dict_object * cer; | |
| 1435 struct dict_object * cea; | |
| 1436 struct dict_cmd_data cea_data; | |
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1437 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1438 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_ANSWER, cer, &cea, ENOENT); |
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1439 ret = fd_dict_getval ( cea, &cea_data ); |
| 0 | 1440 printf("Answer to CER: %s\n", cea_data.cmd_name ); |
| 1441 } | |
| 1442 | |
| 1443 */ | |
| 1444 | |
| 1445 /* | |
| 1446 *************************************************************************** | |
| 1447 * | |
| 1448 * Rule object | |
| 1449 * | |
| 1450 * These objects are used to manage rules in the dictionary (ABNF implementation) | |
| 1451 * This is used for checking messages validity (more powerful than a DTD) | |
| 1452 * | |
| 1453 *************************************************************************** | |
| 1454 */ | |
| 1455 | |
| 1456 /* This defines the kind of rule that is defined */ | |
| 1457 enum rule_position { | |
| 1458 RULE_FIXED_HEAD = 1, /* The AVP must be at the head of the group. The rule_order field is used to specify the position. */ | |
| 1459 RULE_REQUIRED, /* The AVP must be present in the parent, but its position is not defined. */ | |
| 1460 RULE_OPTIONAL, /* The AVP may be present in the message. Used to specify a max number of occurences for example */ | |
| 1461 RULE_FIXED_TAIL /* The AVP must be at the end of the group. The rule_order field is used to specify the position. */ | |
| 1462 }; | |
| 1463 | |
| 1464 /* Content of a RULE object data */ | |
| 1465 struct dict_rule_data { | |
| 1466 struct dict_object *rule_avp; /* Pointer to the AVP object that is concerned by this rule */ | |
| 1467 enum rule_position rule_position; /* The position in which the rule_avp must appear in the parent */ | |
| 1468 unsigned rule_order; /* for RULE_FIXED_* rules, the place. 1,2,3.. for HEAD rules; ...,3,2,1 for TAIL rules. */ | |
| 1469 int rule_min; /* Minimum number of occurences. -1 means "default": 0 for optional rules, 1 for other rules */ | |
| 1470 int rule_max; /* Maximum number of occurences. -1 means no maximum. 0 means the AVP is forbidden. */ | |
| 1471 }; | |
| 1472 | |
| 1473 /* The criteria for searching a rule in the dictionary */ | |
| 1474 enum { | |
| 1475 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?" */ | |
| 1476 }; | |
| 1477 | |
| 1478 /* Structure for querying the dictionary about a rule */ | |
| 1479 struct dict_rule_request { | |
| 1480 struct dict_object *rule_parent; /* The grouped avp or command to which the rule apply */ | |
| 1481 struct dict_object *rule_avp; /* The AVP concerned by this rule */ | |
| 1482 }; | |
| 1483 | |
| 1484 | |
| 1485 /*** | |
| 1486 * API usage : | |
| 1487 | |
| 1488 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). | |
| 1489 | |
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1490 - fd_dict_new: |
| 0 | 1491 Sample code for rule creation. Let's create the Proxy-Info grouped AVP for example. |
| 1492 { | |
| 1493 int ret; | |
| 1494 struct dict_object * proxy_info_avp; | |
| 1495 struct dict_object * proxy_host_avp; | |
| 1496 struct dict_object * proxy_state_avp; | |
| 1497 struct dict_object * diameteridentity_type; | |
| 1498 struct dict_rule_data rule_data; | |
| 1499 struct dict_type_data di_type_data = { AVP_TYPE_OCTETSTRING, "DiameterIdentity", NULL, NULL }; | |
| 1500 struct dict_avp_data proxy_info_data = { 284, 0, "Proxy-Info", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_GROUPED }; | |
| 1501 struct dict_avp_data proxy_host_data = { 280, 0, "Proxy-Host", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
| 1502 struct dict_avp_data proxy_state_data = { 33, 0, "Proxy-State",AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
| 1503 | |
| 1504 -- Create the parent AVP | |
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1505 ret = fd_dict_new ( dict, DICT_AVP, &proxy_info_data, NULL, &proxy_info_avp ); |
| 0 | 1506 |
| 1507 -- Create the first child AVP. | |
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1508 ret = fd_dict_new ( dict, DICT_TYPE, &di_type_data, NULL, &diameteridentity_type ); |
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1509 ret = fd_dict_new ( dict, DICT_AVP, &proxy_host_data, diameteridentity_type, &proxy_host_avp ); |
| 0 | 1510 |
| 1511 -- Create the other child AVP | |
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1512 ret = fd_dict_new ( dict, DICT_AVP, &proxy_state_data, NULL, &proxy_state_avp ); |
| 0 | 1513 |
| 1514 -- Now we can create the rules. Both children AVP are mandatory. | |
| 1515 rule_data.rule_position = RULE_REQUIRED; | |
| 1516 rule_data.rule_min = -1; | |
| 1517 rule_data.rule_max = -1; | |
| 1518 | |
| 1519 rule_data.rule_avp = proxy_host_avp; | |
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1520 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
| 0 | 1521 |
| 1522 rule_data.rule_avp = proxy_state_avp; | |
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1523 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
| 0 | 1524 } |
| 1525 | |
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1526 - fd_dict_search and fd_dict_getval are similar to previous examples. |
| 0 | 1527 |
| 1528 */ | |
| 1529 | |
| 1530 /* Define some hard-coded values */ | |
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1531 /* Application */ |
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1532 #define AI_RELAY 0xffffffff |
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1533 |
| 0 | 1534 /* Commands Codes */ |
| 1535 #define CC_CAPABILITIES_EXCHANGE 257 | |
| 1536 #define CC_RE_AUTH 258 | |
| 1537 #define CC_ACCOUNTING 271 | |
| 1538 #define CC_ABORT_SESSION 274 | |
| 1539 #define CC_SESSION_TERMINATION 275 | |
| 1540 #define CC_DEVICE_WATCHDOG 280 | |
| 1541 #define CC_DISCONNECT_PEER 282 | |
| 1542 | |
| 1543 /* AVPs (Vendor 0) */ | |
| 87 | 1544 #define AC_USER_NAME 1 |
| 0 | 1545 #define AC_PROXY_STATE 33 |
| 1546 #define AC_HOST_IP_ADDRESS 257 | |
| 1547 #define AC_AUTH_APPLICATION_ID 258 | |
| 1548 #define AC_ACCT_APPLICATION_ID 259 | |
| 1549 #define AC_VENDOR_SPECIFIC_APPLICATION_ID 260 | |
| 1550 #define AC_REDIRECT_HOST_USAGE 261 | |
| 1551 #define AC_REDIRECT_MAX_CACHE_TIME 262 | |
| 1552 #define AC_SESSION_ID 263 | |
| 1553 #define AC_ORIGIN_HOST 264 | |
| 1554 #define AC_SUPPORTED_VENDOR_ID 265 | |
| 1555 #define AC_VENDOR_ID 266 | |
| 1556 #define AC_FIRMWARE_REVISION 267 | |
| 1557 #define AC_RESULT_CODE 268 | |
| 1558 #define AC_PRODUCT_NAME 269 | |
| 1559 #define AC_DISCONNECT_CAUSE 273 | |
| 1560 #define ACV_DC_REBOOTING 0 | |
| 1561 #define ACV_DC_BUSY 1 | |
| 1562 #define ACV_DC_NOT_FRIEND 2 | |
| 1563 #define AC_ORIGIN_STATE_ID 278 | |
| 1564 #define AC_FAILED_AVP 279 | |
| 1565 #define AC_PROXY_HOST 280 | |
| 1566 #define AC_ERROR_MESSAGE 281 | |
| 1567 #define AC_ROUTE_RECORD 282 | |
| 1568 #define AC_DESTINATION_REALM 283 | |
| 1569 #define AC_PROXY_INFO 284 | |
| 1570 #define AC_REDIRECT_HOST 292 | |
| 1571 #define AC_DESTINATION_HOST 293 | |
| 1572 #define AC_ERROR_REPORTING_HOST 294 | |
| 1573 #define AC_ORIGIN_REALM 296 | |
| 1574 #define AC_INBAND_SECURITY_ID 299 | |
|
43
2db15632a63d
Added a large part of connection establishment logic, to test
Sebastien Decugis <sdecugis@nict.go.jp>
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34
diff
changeset
|
1575 #define ACV_ISI_NO_INBAND_SECURITY 0 |
|
2db15632a63d
Added a large part of connection establishment logic, to test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
34
diff
changeset
|
1576 #define ACV_ISI_TLS 1 |
| 0 | 1577 |
|
705
f0cb8f465763
Added standard Result-Code values in header.
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parents:
689
diff
changeset
|
1578 /* Error codes from Base protocol |
|
f0cb8f465763
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parents:
689
diff
changeset
|
1579 (reference: http://www.iana.org/assignments/aaa-parameters/aaa-parameters.xml#aaa-parameters-4) |
|
f0cb8f465763
Added standard Result-Code values in header.
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parents:
689
diff
changeset
|
1580 Note that currently, rfc3588bis-26 has some different values for some of these |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1581 */ |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1582 #define ER_DIAMETER_MULTI_ROUND_AUTH 1001 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1583 |
|
f0cb8f465763
Added standard Result-Code values in header.
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parents:
689
diff
changeset
|
1584 #define ER_DIAMETER_SUCCESS 2001 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1585 #define ER_DIAMETER_LIMITED_SUCCESS 2002 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1586 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1587 #define ER_DIAMETER_COMMAND_UNSUPPORTED 3001 /* 5019 ? */ |
|
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Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1588 #define ER_DIAMETER_UNABLE_TO_DELIVER 3002 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1589 #define ER_DIAMETER_REALM_NOT_SERVED 3003 |
|
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Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1590 #define ER_DIAMETER_TOO_BUSY 3004 |
|
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Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1591 #define ER_DIAMETER_LOOP_DETECTED 3005 |
|
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Added standard Result-Code values in header.
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parents:
689
diff
changeset
|
1592 #define ER_DIAMETER_REDIRECT_INDICATION 3006 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1593 #define ER_DIAMETER_APPLICATION_UNSUPPORTED 3007 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1594 #define ER_DIAMETER_INVALID_HDR_BITS 3008 /* 5020 ? */ |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1595 #define ER_DIAMETER_INVALID_AVP_BITS 3009 /* 5021 ? */ |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1596 #define ER_DIAMETER_UNKNOWN_PEER 3010 /* 5018 ? */ |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1597 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1598 #define ER_DIAMETER_AUTHENTICATION_REJECTED 4001 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1599 #define ER_DIAMETER_OUT_OF_SPACE 4002 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1600 #define ER_ELECTION_LOST 4003 |
|
f0cb8f465763
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1601 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1602 #define ER_DIAMETER_AVP_UNSUPPORTED 5001 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1603 #define ER_DIAMETER_UNKNOWN_SESSION_ID 5002 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1604 #define ER_DIAMETER_AUTHORIZATION_REJECTED 5003 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1605 #define ER_DIAMETER_INVALID_AVP_VALUE 5004 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1606 #define ER_DIAMETER_MISSING_AVP 5005 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1607 #define ER_DIAMETER_RESOURCES_EXCEEDED 5006 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1608 #define ER_DIAMETER_CONTRADICTING_AVPS 5007 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1609 #define ER_DIAMETER_AVP_NOT_ALLOWED 5008 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1610 #define ER_DIAMETER_AVP_OCCURS_TOO_MANY_TIMES 5009 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1611 #define ER_DIAMETER_NO_COMMON_APPLICATION 5010 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1612 #define ER_DIAMETER_UNSUPPORTED_VERSION 5011 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1613 #define ER_DIAMETER_UNABLE_TO_COMPLY 5012 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1614 #define ER_DIAMETER_INVALID_BIT_IN_HEADER 5013 /* 3011 ? */ |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1615 #define ER_DIAMETER_INVALID_AVP_LENGTH 5014 |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1616 #define ER_DIAMETER_INVALID_MESSAGE_LENGTH 5015 /* 3012 ? */ |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1617 #define ER_DIAMETER_INVALID_AVP_BIT_COMBO 5016 /* deprecated? */ |
|
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1618 #define ER_DIAMETER_NO_COMMON_SECURITY 5017 |
| 0 | 1619 |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1620 |
|
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1621 /*============================================================*/ |
|
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1622 /* SESSIONS */ |
|
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1623 /*============================================================*/ |
|
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1624 |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1625 /* Modules that want to associate a state with a Session-Id must first register a handler of this type */ |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1626 struct session_handler; |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1627 |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1628 /* This opaque structure represents a session associated with a Session-Id */ |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1629 struct session; |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1630 |
|
226
406f74f0789b
Few cosmetics changes
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
216
diff
changeset
|
1631 /* The state information that a module associate with a session -- each module defines its own data format */ |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1632 typedef void session_state; |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1633 |
|
453
9a8b3178a7a7
Postpone the creation of session expiry thread to allow some global variables to be set (debug level, etc)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
340
diff
changeset
|
1634 /* The following function must be called to activate the session expiry mechanism */ |
|
9a8b3178a7a7
Postpone the creation of session expiry thread to allow some global variables to be set (debug level, etc)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
340
diff
changeset
|
1635 int fd_sess_start(void); |
|
9a8b3178a7a7
Postpone the creation of session expiry thread to allow some global variables to be set (debug level, etc)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
340
diff
changeset
|
1636 |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1637 /* |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1638 * FUNCTION: fd_sess_handler_create |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1639 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1640 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1641 * handler : location where the new handler must be stored. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1642 * cleanup : a callback function that must be called when the session with associated data is destroyed. |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
1643 * opaque : A pointer that is passed to the cleanup callback -- the content is never examined by the framework. |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1644 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1645 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1646 * Create a new session handler. This is needed by a module to associate a state with a session object. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1647 * The cleanup handler is called when the session timeout expires, or fd_sess_destroy is called. It must free |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1648 * the state associated with the session, and eventually trig other actions (send a STR, ...). |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1649 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1650 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1651 * 0 : The new handler has been created. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1652 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1653 * 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
|
1654 */ |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
1655 int fd_sess_handler_create_internal ( struct session_handler ** handler, void (*cleanup)(session_state * state, os0_t sid, void * opaque), void * opaque ); |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1656 /* Macro to avoid casting everywhere */ |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
1657 #define fd_sess_handler_create( _handler, _cleanup, _opaque ) \ |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
1658 fd_sess_handler_create_internal( (_handler), (void (*)(session_state *, os0_t, void *))(_cleanup), (void *)(_opaque) ) |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1659 |
|
340
81821e9f6988
Fix issue on session cleanup callback parameters -- thanks Souheil for reporting.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
336
diff
changeset
|
1660 |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
changeset
|
1661 /* |
|
ef303f1078ab
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Sebastien Decugis <sdecugis@nict.go.jp>
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diff
changeset
|
1662 * FUNCTION: fd_sess_handler_destroy |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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|
1663 * |
|
ef303f1078ab
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diff
changeset
|
1664 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
changeset
|
1665 * handler : location of an handler created by fd_sess_handler_create. |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
1666 * opaque : the opaque pointer registered with the callback is restored here (if ! NULL). |
|
3
ef303f1078ab
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2
diff
changeset
|
1667 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
changeset
|
1668 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
changeset
|
1669 * This destroys a session handler (typically called when an application is shutting down). |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
changeset
|
1670 * If sessions states are registered with this handler, the cleanup callback is called on them. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
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|
1671 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
changeset
|
1672 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
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|
1673 * 0 : The handler was destroyed. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1674 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1675 * 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
|
1676 */ |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
1677 int fd_sess_handler_destroy ( struct session_handler ** handler, void **opaque ); |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1678 |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1679 |
|
d8ce06172629
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1680 |
|
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1681 /* |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1682 * FUNCTION: fd_sess_new |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1683 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1684 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1685 * session : The location where the session object will be created upon success. |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1686 * diamid : a Diameter Identity, or NULL. |
|
4ffbc9f1e922
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1687 * diamidlen : if diamid is \0-terminated, this can be 0. Otherwise, the length of diamid. |
|
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
1688 * opt : Additional string, or NULL. Usage is described bellow. |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1689 * optlen : if opt is \0-terminated, this can be 0. Otherwise, the length of opt. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1690 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1691 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1692 * 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
|
1693 * 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
changeset
|
1694 * diamId is a Diameter Identity. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1695 * 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
changeset
|
1696 * opt is an optional string that can be concatenated to the identifier. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1697 * 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
diff
changeset
|
1698 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1699 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1700 * 0 : The session is created. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1701 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1702 * 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
diff
changeset
|
1703 * 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
|
1704 */ |
|
706
4ffbc9f1e922
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
changeset
|
1705 int fd_sess_new ( struct session ** session, DiamId_t diamid, size_t diamidlen, uint8_t * opt, size_t optlen ); |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1706 |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1707 /* |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1708 * FUNCTION: fd_sess_fromsid |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1709 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1710 * PARAMETERS: |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
1711 * sid : pointer to a string containing a Session-Id (should be UTF-8). |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1712 * len : length of the sid string (which does not need to be '\0'-terminated) |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1713 * session : On success, pointer to the session object created / retrieved. |
|
653
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
diff
changeset
|
1714 * isnew : 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>
parents:
1
diff
changeset
|
1715 * |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1716 * DESCRIPTION: |
|
85
e5fcd672caff
Added new function to retrieve messages sessions easily
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
1717 * Retrieve a session object from a Session-Id string. In case no session object was previously existing with this |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1718 * id, a new object is silently created (equivalent to fd_sess_new with flag SESSION_NEW_FULL). |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1719 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1720 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1721 * 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
changeset
|
1722 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1723 * 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
|
1724 */ |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
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|
1725 int fd_sess_fromsid ( uint8_t * sid, size_t len, struct session ** session, int * isnew); |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1726 |
|
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 * FUNCTION: fd_sess_getsid |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1729 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1730 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1731 * session : Pointer to a session object. |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
1732 * sid : On success, the location of the sid is stored here. |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1733 * |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1734 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1735 * Retrieve the session identifier (Session-Id) corresponding to a session object. |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
1736 * The returned sid is a \0-terminated binary string which might be UTF-8 (but there is no guarantee in the framework). |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1737 * It may be used for example to set the value of an AVP. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1738 * 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>
parents:
1
diff
changeset
|
1739 * |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1740 * RETURN VALUE: |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
1741 * 0 : The sid & len parameters have been updated. |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1742 * EINVAL : A parameter is invalid. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1743 */ |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
1744 int fd_sess_getsid ( struct session * session, os0_t * sid, size_t * sidlen ); |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1745 |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1746 /* |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1747 * FUNCTION: fd_sess_settimeout |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1748 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1749 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1750 * session : The session for which to set the timeout. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1751 * timeout : The date when the session times out. |
|
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1752 * |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1753 * DESCRIPTION: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1754 * Set the lifetime for a given session object. This function may be |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1755 * called several times on the same object to update the timeout value. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1756 * When the timeout date is reached, the cleanup handler of each |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1757 * module that registered data with this session is called, then the |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1758 * session is cleared. |
|
2
d8ce06172629
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1759 * |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
changeset
|
1760 * There is a possible race condition between cleanup of the session |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1761 * and use of its data; applications should ensure that they are not |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1762 * using data from a session that is about to expire / expired. |
|
2
d8ce06172629
Added a global debug level var
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parents:
1
diff
changeset
|
1763 * |
|
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1764 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1765 * 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
|
1766 * 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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|
1767 */ |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1768 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
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|
1769 |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
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|
1770 /* |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
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diff
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|
1771 * FUNCTION: fd_sess_destroy |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1772 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1773 * PARAMETERS: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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changeset
|
1774 * session : Pointer to a session object. |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1775 * |
|
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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1776 * DESCRIPTION: |
|
706
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1777 * Destroys all associated states of a session, if any. |
|
3
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1778 * Equivalent to a session timeout expired, but the effect is immediate. |
|
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1779 * The session itself is marked as deleted, and will be freed when it is not referenced |
|
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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diff
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|
1780 * by any message anymore. |
|
3
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1781 * |
|
ef303f1078ab
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parents:
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1782 * RETURN VALUE: |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
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1783 * 0 : The session no longer exists. |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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1784 * EINVAL : A parameter is invalid. |
|
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Progress; added session module; testsess to be completed
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parents:
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1785 */ |
|
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Progress; added session module; testsess to be completed
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parents:
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1786 int fd_sess_destroy ( struct session ** session ); |
|
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
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1787 |
|
6
b0d377c79d80
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|
1788 /* |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
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1789 * FUNCTION: fd_sess_reclaim |
|
b0d377c79d80
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diff
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1790 * |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
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|
1791 * PARAMETERS: |
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b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
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1792 * session : Pointer to a session object. |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
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diff
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1793 * |
|
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
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1794 * DESCRIPTION: |
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706
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1795 * Equivalent to fd_sess_destroy, only if no session_state is associated with the session. |
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4ffbc9f1e922
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parents:
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1796 * Otherwise, this function has no effect (except that it sets *session to NULL). |
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6
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1797 * |
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b0d377c79d80
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1798 * RETURN VALUE: |
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706
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1799 * 0 : The session was reclaimed. |
|
6
b0d377c79d80
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1800 * EINVAL : A parameter is invalid. |
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1801 */ |
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Progress on dispatch API spec; added fd_sess_reclaim function and test
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1802 int fd_sess_reclaim ( struct session ** session ); |
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1803 |
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b0d377c79d80
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1804 |
|
3
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parents:
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1805 |
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1806 |
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1807 /* |
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1808 * FUNCTION: fd_sess_state_store |
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2
d8ce06172629
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parents:
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1809 * |
|
3
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parents:
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1810 * PARAMETERS: |
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1811 * handler : The handler with which the state is registered. |
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1812 * session : The session object with which the state is registered. |
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1813 * state : An application state (opaque data) to store with the session. |
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1814 * |
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1815 * DESCRIPTION: |
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1816 * Stores an application state with a session. This state can later be retrieved |
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1817 * with fd_sess_state_retrieve, or implicitly in the cleanup handler when the session |
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ef303f1078ab
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1818 * is destroyed. |
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1819 * |
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1820 * RETURN VALUE: |
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1821 * 0 : The state has been stored. |
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1822 * EINVAL : A parameter is invalid. |
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1823 * EALREADY : Data was already associated with this session and client. |
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1824 * ENOMEM : Not enough memory to complete the operation |
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parents:
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1825 */ |
|
6
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1826 int fd_sess_state_store_internal ( struct session_handler * handler, struct session * session, session_state ** state ); |
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5
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
3
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1827 #define fd_sess_state_store( _handler, _session, _state ) \ |
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6
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1828 fd_sess_state_store_internal( (_handler), (_session), (void *)(_state) ) |
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3
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1829 |
|
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1830 /* |
|
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1831 * FUNCTION: fd_sess_state_retrieve |
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2
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1832 * |
|
3
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1833 * PARAMETERS: |
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1834 * handler : The handler with which the state was registered. |
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1835 * session : The session object with which the state was registered. |
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1836 * state : Location where the state must be saved if it is found. |
|
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parents:
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1837 * |
|
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1838 * DESCRIPTION: |
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1839 * Retrieves a state saved by fd_sess_state_store. |
|
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1840 * After this function has been called, the state is no longer associated with |
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1841 * the session. A new call to fd_sess_state_store must be performed in order to |
|
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1842 * store again the data with the session. |
|
2
d8ce06172629
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1
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1843 * |
|
3
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1844 * RETURN VALUE: |
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1845 * 0 : *state is updated (NULL or points to the state if it was found). |
|
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1846 * EINVAL : A parameter is invalid. |
|
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1847 */ |
|
620
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Removed the OUTPUT specification for SWIG, too complex
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parents:
618
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1848 int fd_sess_state_retrieve_internal ( struct session_handler * handler, struct session * session, session_state ** state ); |
|
5
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parents:
3
diff
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|
1849 #define fd_sess_state_retrieve( _handler, _session, _state ) \ |
|
6
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5
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1850 fd_sess_state_retrieve_internal( (_handler), (_session), (void *)(_state) ) |
|
2
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1851 |
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1
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1852 |
|
3
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1853 /* For debug */ |
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1854 void fd_sess_dump(int level, struct session * session); |
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1855 void fd_sess_dump_hdl(int level, struct session_handler * handler); |
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1856 |
|
2
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1857 /*============================================================*/ |
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83
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1858 /* ROUTING */ |
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1859 /*============================================================*/ |
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1860 |
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1861 /* The following functions are helpers for the routing module. |
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1862 The routing data is stored in the message itself. */ |
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83
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1863 |
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1864 /* Structure that contains the routing data for a message */ |
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1865 struct rt_data; |
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1866 |
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1867 /* Following functions are helpers to create the routing data of a message */ |
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1868 int fd_rtd_init(struct rt_data ** rtd); |
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1869 void fd_rtd_free(struct rt_data ** rtd); |
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1870 |
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1871 /* Add a peer to the candidates list. */ |
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1872 int fd_rtd_candidate_add(struct rt_data * rtd, DiamId_t peerid, size_t peeridlen, DiamId_t realm, size_t realmlen); |
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1873 |
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1874 /* Remove a peer from the candidates (if it is found). The search is case-insensitive. */ |
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1875 void fd_rtd_candidate_del(struct rt_data * rtd, uint8_t * id, size_t idsz); |
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83
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1876 |
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parents:
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1877 /* Extract the list of valid candidates, and initialize their scores to 0 */ |
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1878 void fd_rtd_candidate_extract(struct rt_data * rtd, struct fd_list ** candidates, int ini_score); |
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87
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1879 |
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1880 /* 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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1881 int fd_rtd_error_add(struct rt_data * rtd, DiamId_t sentto, size_t senttolen, uint8_t * origin, size_t originsz, uint32_t rcode); |
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1882 |
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1883 /* The extracted list items have the following structure: */ |
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1884 struct rtd_candidate { |
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1885 struct fd_list chain; /* link in the list returned by the previous fct */ |
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1886 DiamId_t diamid; /* the diameter Id of the peer */ |
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1887 size_t diamidlen; /* cached size of the diamid string */ |
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1888 DiamId_t realm; /* the diameter realm of the peer */ |
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1889 size_t realmlen; /* cached size of realm */ |
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1890 int score; /* the current routing score for this peer, see fd_rt_out_register definition for details */ |
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1891 }; |
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1892 |
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1893 /* Reorder the list of peers by score */ |
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1894 int fd_rtd_candidate_reorder(struct fd_list * candidates); |
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1895 |
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1896 /* 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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1897 /* Beware that this could lead to routing loops */ |
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1898 |
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1899 /*============================================================*/ |
| 0 | 1900 /* MESSAGES */ |
| 1901 /*============================================================*/ | |
| 1902 | |
| 1903 /* The following types are opaque */ | |
| 1904 struct msg; /* A message: command with children AVPs (possibly grand children) */ | |
| 1905 struct avp; /* AVP object */ | |
| 1906 | |
| 1907 /* Some details about chaining: | |
| 1908 * | |
| 1909 * A message is made of a header ( msg ) and 0 or more AVPs ( avp ). | |
| 1910 * The structure is a kind of tree, where some AVPs (grouped AVPs) can contain other AVPs. | |
| 1911 * Exemple: | |
| 1912 * msg | |
| 1913 * |-avp | |
| 1914 * |-gavp | |
| 1915 * | |-avp | |
| 1916 * | |-avp | |
| 1917 * | \-avp | |
| 1918 * |-avp | |
| 1919 * \-avp | |
| 1920 * | |
| 1921 */ | |
| 1922 | |
| 1923 /* The following type is used to point to either a msg or an AVP */ | |
| 1924 typedef void msg_or_avp; | |
| 1925 | |
| 1926 /* The Diameter protocol version */ | |
| 1927 #define DIAMETER_VERSION 1 | |
| 1928 | |
| 1929 /* In the two following types, some fields are marked (READONLY). | |
| 1930 * This means that the content of these fields will be overwritten by the daemon so modifying it is useless. | |
| 1931 */ | |
| 1932 | |
| 1933 /* The following structure represents the header of a message. All data is in host byte order. */ | |
| 1934 struct msg_hdr { | |
| 1935 uint8_t msg_version; /* (READONLY) Version of Diameter: must be DIAMETER_VERSION. */ | |
| 1936 uint32_t msg_length; /* (READONLY)(3 bytes) indicates the length of the message */ | |
| 1937 uint8_t msg_flags; /* Message flags: CMD_FLAG_* */ | |
| 1938 command_code_t msg_code; /* (3 bytes) the command-code. See dictionary-api.h for more detail */ | |
| 1939 application_id_t msg_appl; /* The application issuing this message */ | |
| 1940 uint32_t msg_hbhid; /* The Hop-by-Hop identifier of the message */ | |
| 1941 uint32_t msg_eteid; /* The End-to-End identifier of the message */ | |
| 1942 }; | |
| 1943 | |
| 1944 /* The following structure represents the visible content of an AVP. All data is in host byte order. */ | |
| 1945 struct avp_hdr { | |
| 1946 avp_code_t avp_code; /* the AVP Code */ | |
| 1947 uint8_t avp_flags; /* AVP_FLAG_* flags */ | |
| 1948 uint32_t avp_len; /* (READONLY)(Only 3 bytes are used) the length of the AVP as described in the RFC */ | |
| 1949 vendor_id_t avp_vendor; /* Only used if AVP_FLAG_VENDOR is present */ | |
| 1950 union avp_value *avp_value; /* pointer to the value of the AVP. NULL means that the value is not set / not understood. | |
| 1951 One should not directly change this value. Use the msg_avp_setvalue function instead. | |
| 1952 The content of the pointed structure can be changed directly, with this restriction: | |
| 1953 if the AVP is an OctetString, and you change the value of the pointer avp_value->os.data, then | |
| 1954 you must call free() on the previous value, and the new one must be free()-able. | |
| 1955 */ | |
| 1956 }; | |
| 1957 | |
| 1958 /* The following enum is used to browse inside message hierarchy (msg, gavp, avp) */ | |
| 1959 enum msg_brw_dir { | |
| 1960 MSG_BRW_NEXT = 1, /* Get the next element at the same level, or NULL if this is the last element. */ | |
| 1961 MSG_BRW_PREV, /* Get the previous element at the same level, or NULL if this is the first element. */ | |
| 1962 MSG_BRW_FIRST_CHILD, /* Get the first child AVP of this element, if any. */ | |
| 1963 MSG_BRW_LAST_CHILD, /* Get the last child AVP of this element, if any. */ | |
| 1964 MSG_BRW_PARENT, /* Get the parent element of this element, if any. Only the msg_t object has no parent. */ | |
| 1965 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. */ | |
| 1966 }; | |
| 1967 | |
| 1968 /* Some flags used in the functions bellow */ | |
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1969 #define AVPFL_SET_BLANK_VALUE 0x01 /* When creating an AVP, initialize its value to a blank area */ |
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1970 #define AVPFL_MAX AVPFL_SET_BLANK_VALUE /* The biggest valid flag value */ |
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1971 |
| 0 | 1972 #define MSGFL_ALLOC_ETEID 0x01 /* When creating a message, a new end-to-end ID is allocated and set in the message */ |
| 1973 #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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1974 #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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1975 #define MSGFL_MAX MSGFL_ANSW_NOSID /* The biggest valid flag value */ |
| 0 | 1976 |
| 1977 /**************************************************/ | |
| 1978 /* Message creation, manipulation, disposal */ | |
| 1979 /**************************************************/ | |
| 1980 /* | |
| 1981 * FUNCTION: fd_msg_avp_new | |
| 1982 * | |
| 1983 * PARAMETERS: | |
| 1984 * model : Pointer to a DICT_AVP dictionary object describing the avp to create, or NULL. | |
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1985 * flags : Flags to use in creation (AVPFL_*). |
| 0 | 1986 * avp : Upon success, pointer to the new avp is stored here. |
| 1987 * | |
| 1988 * DESCRIPTION: | |
| 1989 * Create a new AVP instance. | |
| 1990 * | |
| 1991 * RETURN VALUE: | |
| 1992 * 0 : The AVP is created. | |
| 1993 * EINVAL : A parameter is invalid. | |
| 1994 * (other standard errors may be returned, too, with their standard meaning. Example: | |
| 1995 * ENOMEM : Memory allocation for the new avp failed.) | |
| 1996 */ | |
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1997 int fd_msg_avp_new ( struct dict_object * model, int flags, struct avp ** avp ); |
| 0 | 1998 |
| 1999 /* | |
| 2000 * FUNCTION: fd_msg_new | |
| 2001 * | |
| 2002 * PARAMETERS: | |
| 2003 * model : Pointer to a DICT_COMMAND dictionary object describing the message to create, or NULL. | |
| 2004 * flags : combination of MSGFL_* flags. | |
| 2005 * msg : Upon success, pointer to the new message is stored here. | |
| 2006 * | |
| 2007 * DESCRIPTION: | |
| 2008 * Create a new empty Diameter message. | |
| 2009 * | |
| 2010 * RETURN VALUE: | |
| 2011 * 0 : The message is created. | |
| 2012 * EINVAL : A parameter is invalid. | |
| 2013 * (other standard errors may be returned, too, with their standard meaning. Example: | |
| 2014 * ENOMEM : Memory allocation for the new message failed.) | |
| 2015 */ | |
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2016 int fd_msg_new ( struct dict_object * model, int flags, struct msg ** msg ); |
| 0 | 2017 |
| 2018 /* | |
| 2019 * FUNCTION: msg_new_answer_from_req | |
| 2020 * | |
| 2021 * PARAMETERS: | |
| 2022 * dict : Pointer to the dictionary containing the model of the query. | |
| 2023 * msg : The location of the query on function call. Updated by the location of answer message on return. | |
| 2024 * flag : Pass MSGFL_ANSW_ERROR to indicate if the answer is an error message (will set the 'E' bit) | |
| 2025 * | |
| 2026 * DESCRIPTION: | |
| 2027 * This function creates the empty answer message corresponding to a request. | |
| 2028 * The header is set properly (R flag, ccode, appid, hbhid, eteid) | |
| 2029 * The Session-Id AVP is copied if present. | |
| 2030 * The calling code should usually call fd_msg_rescode_set function on the answer. | |
| 2031 * Upon return, the original query may be retrieved by calling fd_msg_answ_getq on the message. | |
| 2032 * | |
| 2033 * RETURN VALUE: | |
| 2034 * 0 : Operation complete. | |
| 2035 * !0 : an error occurred. | |
| 2036 */ | |
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2037 int fd_msg_new_answer_from_req ( struct dictionary * dict, struct msg ** msg, int flag ); |
| 0 | 2038 |
| 2039 /* | |
| 2040 * FUNCTION: fd_msg_browse | |
| 2041 * | |
| 2042 * PARAMETERS: | |
| 2043 * reference : Pointer to a struct msg or struct avp. | |
| 2044 * dir : Direction for browsing | |
| 2045 * found : If not NULL, updated with the element that has been found, if any, or NULL if no element was found / an error occurred. | |
| 2046 * 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. | |
| 2047 * | |
| 2048 * DESCRIPTION: | |
| 2049 * Explore the content of a message object (hierarchy). If "found" is null, only error checking is performed. | |
| 2050 * If "depth" is provided, it is updated as follow on successful function return: | |
| 2051 * - not modified for MSG_BRW_NEXT and MSG_BRW_PREV. | |
| 2052 * - *depth = *depth + 1 for MSG_BRW_FIRST_CHILD and MSG_BRW_LAST_CHILD. | |
| 2053 * - *depth = *depth - 1 for MSG_BRW_PARENT. | |
| 2054 * - *depth = *depth + X for MSG_BRW_WALK, with X between 1 (returned the 1st child) and -N (returned the Nth parent's next). | |
| 2055 * | |
| 2056 * RETURN VALUE: | |
| 2057 * 0 : found has been updated (if non NULL). | |
| 2058 * EINVAL : A parameter is invalid. | |
| 2059 * ENOENT : No element has been found where requested, and "found" was NULL (otherwise, *found is set to NULL and 0 is returned). | |
| 2060 */ | |
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2061 int fd_msg_browse_internal ( msg_or_avp * reference, enum msg_brw_dir dir, msg_or_avp ** found, int * depth ); |
| 0 | 2062 /* Macro to avoid having to cast the third parameter everywhere */ |
| 2063 #define fd_msg_browse( ref, dir, found, depth ) \ | |
| 2064 fd_msg_browse_internal( (ref), (dir), (void *)(found), (depth) ) | |
| 2065 | |
| 2066 | |
| 2067 /* | |
| 2068 * FUNCTION: fd_msg_avp_add | |
| 2069 * | |
| 2070 * PARAMETERS: | |
| 2071 * reference : Pointer to a valid msg or avp. | |
| 2072 * dir : location where the new AVP should be inserted, relative to the reference. MSG_BRW_PARENT and MSG_BRW_WALK are not valid. | |
| 2073 * avp : pointer to the AVP object that must be inserted. | |
| 2074 * | |
| 2075 * DESCRIPTION: | |
| 2076 * Adds an AVP into an object that can contain it: grouped AVP or message. | |
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2077 * Note that the added AVP will be freed at the same time as the object it is added to, |
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2078 * so it should not be freed after the call to this function. |
| 0 | 2079 * |
| 2080 * RETURN VALUE: | |
| 2081 * 0 : The AVP has been added. | |
| 2082 * EINVAL : A parameter is invalid. | |
| 2083 */ | |
| 2084 int fd_msg_avp_add ( msg_or_avp * reference, enum msg_brw_dir dir, struct avp *avp); | |
| 2085 | |
| 2086 /* | |
| 2087 * FUNCTION: fd_msg_search_avp | |
| 2088 * | |
| 2089 * PARAMETERS: | |
| 2090 * msg : The message structure in which to search the AVP. | |
| 2091 * what : The dictionary model of the AVP to search. | |
| 2092 * avp : location where the AVP reference is stored if found. | |
| 2093 * | |
| 2094 * DESCRIPTION: | |
| 2095 * Search the first top-level AVP of a given model inside a message. | |
| 2096 * Note: only the first instance of the AVP is returned by this function. | |
| 2097 * Note: only top-level AVPs are searched, not inside grouped AVPs. | |
| 2098 * Use msg_browse if you need more advanced research features. | |
| 2099 * | |
| 2100 * RETURN VALUE: | |
| 2101 * 0 : The AVP has been found. | |
| 2102 * EINVAL : A parameter is invalid. | |
| 2103 * ENOENT : No AVP has been found, and "avp" was NULL (otherwise, *avp is set to NULL and 0 returned). | |
| 2104 */ | |
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2105 int fd_msg_search_avp ( struct msg * msg, struct dict_object * what, struct avp ** avp ); |
| 0 | 2106 |
| 2107 /* | |
| 2108 * FUNCTION: fd_msg_free | |
| 2109 * | |
| 2110 * PARAMETERS: | |
| 2111 * object : pointer to the message or AVP object that must be unlinked and freed. | |
| 2112 * | |
| 2113 * DESCRIPTION: | |
| 2114 * Unlink and free a message or AVP object and its children. | |
| 2115 * If the object is an AVP linked into a message, the AVP is removed before being freed. | |
| 2116 * | |
| 2117 * RETURN VALUE: | |
| 2118 * 0 : The message has been freed. | |
| 2119 * EINVAL : A parameter is invalid. | |
| 2120 */ | |
| 2121 int fd_msg_free ( msg_or_avp * object ); | |
| 2122 | |
| 2123 /***************************************/ | |
| 2124 /* Dump functions */ | |
| 2125 /***************************************/ | |
| 2126 /* | |
| 2127 * FUNCTION: fd_msg_dump_* | |
| 2128 * | |
| 2129 * PARAMETERS: | |
| 2130 * level : the log level (INFO, FULL, ...) at which the object is dumped | |
| 2131 * obj : A msg or avp object. | |
| 2132 * | |
| 2133 * DESCRIPTION: | |
| 2134 * These functions dump the content of a message to the debug log | |
| 2135 * either recursively or only the object itself. | |
| 2136 * | |
| 2137 * RETURN VALUE: | |
| 2138 * - | |
| 2139 */ | |
| 2140 void fd_msg_dump_walk ( int level, msg_or_avp *obj ); | |
| 2141 void fd_msg_dump_one ( int level, msg_or_avp *obj ); | |
| 2142 | |
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2143 /* |
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2144 * FUNCTION: fd_msg_log |
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2145 * |
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2146 * PARAMETERS: |
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2147 * cause : Context for calling this function. This allows the log facility to be configured precisely. |
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2148 * msg : The message to log. |
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2149 * prefix_format: Printf-style format message that is printed ahead of the message. Might be reason for drop or so. |
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2150 * |
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2151 * DESCRIPTION: |
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2152 * This function is called when a Diameter message reaches some particular points in the fD framework. |
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2153 * The actual effect is configurable: log in a separate file, dump in the debug log, etc. |
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2154 * |
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2155 * RETURN VALUE: |
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2156 * - |
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2157 */ |
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2158 enum fd_msg_log_cause { |
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2159 FD_MSG_LOG_DROPPED = 0, /* message has been dropped by the framework */ |
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2160 FD_MSG_LOG_RECEIVED, /* message received from the network */ |
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2161 FD_MSG_LOG_SENT, /* message sent to another peer */ |
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2162 FD_MSG_LOG_NODELIVER /* message could not be delivered to any peer */ |
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2163 }; |
|
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2164 #define FD_MSG_LOG_MAX FD_MSG_LOG_NODELIVER |
|
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2165 void fd_msg_log( enum fd_msg_log_cause cause, struct msg * msg, const char * prefix_format, ... ); |
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2166 |
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2167 /* configure the msg_log facility */ |
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2168 enum fd_msg_log_method { |
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2169 FD_MSG_LOGTO_DEBUGONLY = 0, /* Simply log the message with other debug information, at the INFO level. This is default */ |
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2170 FD_MSG_LOGTO_FILE, /* Messages are dumped in a single file, defined in arg */ |
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2171 FD_MSG_LOGTO_DIR /* Messages are dumped in different files within one directory defined in arg. */ |
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2172 }; |
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2173 int fd_msg_log_config(enum fd_msg_log_cause cause, enum fd_msg_log_method method, const char * arg); |
|
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2174 void fd_msg_log_init(struct dictionary *dict); |
| 0 | 2175 |
| 2176 /*********************************************/ | |
| 2177 /* Message metadata management functions */ | |
| 2178 /*********************************************/ | |
| 2179 /* | |
| 2180 * FUNCTION: fd_msg_model | |
| 2181 * | |
| 2182 * PARAMETERS: | |
| 2183 * reference : Pointer to a valid msg or avp. | |
| 2184 * model : on success, pointer to the dictionary model of this command or AVP. NULL if the model is unknown. | |
| 2185 * | |
| 2186 * DESCRIPTION: | |
| 2187 * Retrieve the dictionary object describing this message or avp. If the object is unknown or the fd_msg_parse_dict has not been called, | |
| 2188 * *model is set to NULL. | |
| 2189 * | |
| 2190 * RETURN VALUE: | |
| 2191 * 0 : The model has been set. | |
| 2192 * EINVAL : A parameter is invalid. | |
| 2193 */ | |
|
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2194 int fd_msg_model ( msg_or_avp * reference, struct dict_object ** model ); |
| 0 | 2195 |
| 2196 /* | |
| 2197 * FUNCTION: fd_msg_hdr | |
| 2198 * | |
| 2199 * PARAMETERS: | |
| 2200 * msg : Pointer to a valid message object. | |
| 2201 * pdata : Upon success, pointer to the msg_hdr structure of this message. The fields may be modified. | |
| 2202 * | |
| 2203 * DESCRIPTION: | |
| 2204 * Retrieve location of modifiable section of a message. | |
| 2205 * | |
| 2206 * RETURN VALUE: | |
| 2207 * 0 : The location has been written. | |
| 2208 * EINVAL : A parameter is invalid. | |
| 2209 */ | |
|
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2210 int fd_msg_hdr ( struct msg *msg, struct msg_hdr ** pdata ); |
| 0 | 2211 |
| 2212 /* | |
| 2213 * FUNCTION: fd_msg_avp_hdr | |
| 2214 * | |
| 2215 * PARAMETERS: | |
| 2216 * avp : Pointer to a valid avp object. | |
| 2217 * pdata : Upon success, pointer to the avp_hdr structure of this avp. The fields may be modified. | |
| 2218 * | |
| 2219 * DESCRIPTION: | |
| 2220 * Retrieve location of modifiable data of an avp. | |
| 2221 * | |
| 2222 * RETURN VALUE: | |
| 2223 * 0 : The location has been written. | |
| 2224 * EINVAL : A parameter is invalid. | |
| 2225 */ | |
|
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2226 int fd_msg_avp_hdr ( struct avp *avp, struct avp_hdr ** pdata ); |
| 0 | 2227 |
| 2228 /* | |
| 2229 * FUNCTION: fd_msg_answ_associate, fd_msg_answ_getq, fd_msg_answ_detach | |
| 2230 * | |
| 2231 * PARAMETERS: | |
| 2232 * answer : the received answer message | |
| 2233 * query : the corresponding query that had been sent | |
| 2234 * | |
| 2235 * DESCRIPTION: | |
| 2236 * fd_msg_answ_associate associates a query msg with the received answer. | |
| 2237 * Query is retrieved with fd_msg_answ_getq. | |
| 2238 * If answer message is freed, the query is also freed. | |
| 2239 * If the msg_answ_detach function is called, the association is removed. | |
| 2240 * This is meant to be called from the daemon only. | |
| 2241 * | |
| 2242 * RETURN VALUE: | |
| 2243 * 0 : ok | |
| 2244 * EINVAL: a parameter is invalid | |
| 2245 */ | |
| 2246 int fd_msg_answ_associate( struct msg * answer, struct msg * query ); | |
|
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2247 int fd_msg_answ_getq ( struct msg * answer, struct msg ** query ); |
| 0 | 2248 int fd_msg_answ_detach ( struct msg * answer ); |
| 2249 | |
| 2250 /* | |
| 2251 * FUNCTION: fd_msg_anscb_associate, fd_msg_anscb_get | |
| 2252 * | |
| 2253 * PARAMETERS: | |
| 2254 * msg : the answer message | |
| 2255 * anscb : the callback to associate with the message | |
| 2256 * data : the data to pass to the callback | |
|
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2257 * timeout : (optional, use NULL if no timeout) a timeout associated with calling the cb. |
| 0 | 2258 * |
| 2259 * DESCRIPTION: | |
| 2260 * Associate or retrieve a callback with an answer message. | |
| 2261 * This is meant to be called from the daemon only. | |
| 2262 * | |
| 2263 * RETURN VALUE: | |
| 2264 * 0 : ok | |
| 2265 * EINVAL: a parameter is invalid | |
| 2266 */ | |
|
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2267 int fd_msg_anscb_associate( struct msg * msg, void ( *anscb)(void *, struct msg **), void * data, const struct timespec *timeout ); |
| 0 | 2268 int fd_msg_anscb_get ( struct msg * msg, void (**anscb)(void *, struct msg **), void ** data ); |
|
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2269 struct timespec *fd_msg_anscb_gettimeout( struct msg * msg ); /* returns NULL or a valid non-0 timespec */ |
| 0 | 2270 |
| 2271 /* | |
| 2272 * FUNCTION: fd_msg_rt_associate, fd_msg_rt_get | |
| 2273 * | |
| 2274 * PARAMETERS: | |
| 2275 * msg : the query message to be sent | |
| 2276 * list : the ordered list of possible next-peers | |
| 2277 * | |
| 2278 * DESCRIPTION: | |
| 2279 * Associate a routing list with a query, and retrieve it. | |
| 2280 * If the message is freed, the list is also freed. | |
| 2281 * | |
| 2282 * RETURN VALUE: | |
| 2283 * 0 : ok | |
| 2284 * EINVAL: a parameter is invalid | |
| 2285 */ | |
|
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2286 int fd_msg_rt_associate( struct msg * msg, struct rt_data ** rtd ); |
|
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2287 int fd_msg_rt_get ( struct msg * msg, struct rt_data ** rtd ); |
| 0 | 2288 |
| 2289 /* | |
| 2290 * FUNCTION: fd_msg_is_routable | |
| 2291 * | |
| 2292 * PARAMETERS: | |
| 2293 * msg : A msg object. | |
| 2294 * | |
| 2295 * DESCRIPTION: | |
| 2296 * This function returns a boolean telling if a given message is routable in the Diameter network, | |
| 2297 * or if it is a local link message only (ex: CER/CEA, DWR/DWA, ...). | |
| 2298 * | |
| 2299 * RETURN VALUE: | |
| 2300 * 0 : The message is not routable / an error occurred. | |
| 2301 * 1 : The message is routable. | |
| 2302 */ | |
| 2303 int fd_msg_is_routable ( struct msg * msg ); | |
| 2304 | |
| 2305 /* | |
| 2306 * FUNCTION: fd_msg_source_(g/s)et | |
| 2307 * | |
| 2308 * PARAMETERS: | |
| 2309 * msg : A msg object. | |
|
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2310 * diamid,len : The diameter id of the peer from which this message was received. |
| 0 | 2311 * add_rr : if true, a Route-Record AVP is added to the message with content diamid. In that case, dict must be supplied. |
| 2312 * dict : a dictionary with definition of Route-Record AVP (if add_rr is true) | |
| 2313 * | |
| 2314 * DESCRIPTION: | |
| 2315 * Store or retrieve the diameted id of the peer from which this message was received. | |
| 2316 * Will be used for example by the routing module to add the Route-Record AVP in forwarded requests, | |
| 2317 * or to direct answers to the appropriate peer. | |
| 2318 * | |
| 2319 * RETURN VALUE: | |
| 2320 * 0 : Operation complete. | |
| 2321 * !0 : an error occurred. | |
| 2322 */ | |
|
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2323 int fd_msg_source_set( struct msg * msg, DiamId_t diamid, size_t diamidlen, int add_rr, struct dictionary * dict ); |
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2324 int fd_msg_source_get( struct msg * msg, DiamId_t *diamid, size_t * diamidlen ); |
| 0 | 2325 |
| 2326 /* | |
| 2327 * FUNCTION: fd_msg_eteid_get | |
| 2328 * | |
| 2329 * PARAMETERS: | |
| 2330 * - | |
| 2331 * | |
| 2332 * DESCRIPTION: | |
| 2333 * Get a new unique end-to-end id value for the local peer. | |
| 2334 * | |
| 2335 * RETURN VALUE: | |
| 2336 * The new assigned value. No error code is defined. | |
| 2337 */ | |
| 2338 uint32_t fd_msg_eteid_get ( void ); | |
| 2339 | |
| 2340 | |
|
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2341 /* |
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2342 * FUNCTION: fd_msg_sess_get |
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2343 * |
|
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2344 * PARAMETERS: |
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2345 * dict : the dictionary that contains the Session-Id AVP definition |
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2346 * msg : A valid message. |
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2347 * session : Location to store the session pointer when retrieved. |
|
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2348 * isnew : Indicates if the session has been created. |
|
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2349 * |
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2350 * DESCRIPTION: |
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2351 * This function retrieves or creates the session object corresponding to a message. |
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2352 * If the message does not contain a Session-Id AVP, *session == NULL on return. |
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2353 * Note that the Session-Id AVP must never be modified after created in a message. |
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2354 * |
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2355 * RETURN VALUE: |
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2356 * 0 : success |
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2357 * !0 : standard error code. |
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2358 */ |
|
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2359 int fd_msg_sess_get(struct dictionary * dict, struct msg * msg, struct session ** session, int * isnew); |
|
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2360 |
| 0 | 2361 /***************************************/ |
| 2362 /* Manage AVP values */ | |
| 2363 /***************************************/ | |
| 2364 | |
| 2365 /* | |
| 2366 * FUNCTION: fd_msg_avp_setvalue | |
| 2367 * | |
| 2368 * PARAMETERS: | |
| 2369 * avp : Pointer to a valid avp object with a NULL avp_value pointer. The model must be known. | |
| 2370 * value : pointer to an avp_value. The content will be COPIED into the internal storage area. | |
| 2371 * If data type is an octetstring, the data is also copied. | |
| 2372 * If value is a NULL pointer, the previous data is erased and value is unset in the AVP. | |
| 2373 * | |
| 2374 * DESCRIPTION: | |
| 2375 * Initialize the avp_value field of an AVP header. | |
| 2376 * | |
| 2377 * RETURN VALUE: | |
| 2378 * 0 : The avp_value pointer has been set. | |
| 2379 * EINVAL : A parameter is invalid. | |
| 2380 */ | |
| 2381 int fd_msg_avp_setvalue ( struct avp *avp, union avp_value *value ); | |
| 2382 | |
| 2383 /* | |
| 2384 * FUNCTION: fd_msg_avp_value_encode | |
| 2385 * | |
| 2386 * PARAMETERS: | |
| 2387 * avp : Pointer to a valid avp object with a NULL avp_value. The model must be known. | |
| 2388 * data : Pointer to the data that must be encoded as AVP value and stored in the AVP. | |
| 2389 * This is only valid for AVPs of derived type for which type_data_encode callback is set. (ex: Address type) | |
| 2390 * | |
| 2391 * DESCRIPTION: | |
| 2392 * Initialize the avp_value field of an AVP object from formatted data, using the AVP's type "type_data_encode" callback. | |
| 2393 * | |
| 2394 * RETURN VALUE: | |
| 2395 * 0 : The avp_value has been set. | |
| 2396 * EINVAL : A parameter is invalid. | |
| 2397 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
| 2398 */ | |
| 2399 int fd_msg_avp_value_encode ( void *data, struct avp *avp ); | |
| 2400 /* | |
| 2401 * FUNCTION: fd_msg_avp_value_interpret | |
| 2402 * | |
| 2403 * PARAMETERS: | |
| 2404 * avp : Pointer to a valid avp object with a non-NULL avp_value value. | |
| 2405 * data : Upon success, formatted interpretation of the AVP value is stored here. | |
| 2406 * | |
| 2407 * DESCRIPTION: | |
| 2408 * Interpret the content of an AVP of Derived type and store the result in data pointer. The structure | |
| 2409 * of the data pointer is dependent on the AVP type. This function calls the "type_data_interpret" callback | |
| 2410 * of the type. | |
| 2411 * | |
| 2412 * RETURN VALUE: | |
| 2413 * 0 : The avp_value has been set. | |
| 2414 * EINVAL : A parameter is invalid. | |
| 2415 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
| 2416 */ | |
| 2417 int fd_msg_avp_value_interpret ( struct avp *avp, void *data ); | |
| 2418 | |
| 2419 | |
| 2420 /***************************************/ | |
| 2421 /* Message parsing functions */ | |
| 2422 /***************************************/ | |
| 2423 | |
| 2424 /* | |
| 2425 * FUNCTION: fd_msg_bufferize | |
| 2426 * | |
| 2427 * PARAMETERS: | |
| 2428 * msg : A valid msg object. All AVPs must have a value set. | |
| 2429 * buffer : Upon success, this points to a buffer (malloc'd) containing the message ready for network transmission (or security transformations). | |
| 2430 * The buffer may be freed after use. | |
| 2431 * len : if not NULL, the size of the buffer is written here. In any case, this size is updated in the msg header. | |
| 2432 * | |
| 2433 * DESCRIPTION: | |
| 2434 * Renders a message in memory as a buffer that can be sent over the network to the next peer. | |
| 2435 * | |
| 2436 * RETURN VALUE: | |
| 2437 * 0 : The location has been written. | |
| 2438 * EINVAL : The buffer does not contain a valid Diameter message. | |
| 2439 * ENOMEM : Unable to allocate enough memory to create the buffer object. | |
| 2440 */ | |
|
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2441 int fd_msg_bufferize ( struct msg * msg, uint8_t ** buffer, size_t * len ); |
| 0 | 2442 |
| 2443 /* | |
| 2444 * FUNCTION: fd_msg_parse_buffer | |
| 2445 * | |
| 2446 * PARAMETERS: | |
| 2447 * buffer : Pointer to a buffer containing a message received from the network. | |
| 2448 * buflen : the size in bytes of the buffer. | |
| 2449 * msg : Upon success, this points to a valid msg object. No AVP value is resolved in this object, nor grouped AVP. | |
| 2450 * | |
| 2451 * DESCRIPTION: | |
| 2452 * This function parses a buffer an creates a msg object to represent the structure of the message. | |
| 2453 * Since no dictionary lookup is performed, the values of the AVPs are not interpreted. To interpret the values, | |
| 2454 * the returned message object must be passed to fd_msg_parse_dict function. | |
| 2455 * The buffer pointer is saved inside the message and will be freed when not needed anymore. | |
| 2456 * | |
| 2457 * RETURN VALUE: | |
| 2458 * 0 : The location has been written. | |
| 2459 * ENOMEM : Unable to allocate enough memory to create the msg object. | |
| 2460 * EBADMSG : The buffer does not contain a valid Diameter message (or is truncated). | |
| 2461 * EINVAL : A parameter is invalid. | |
| 2462 */ | |
|
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2463 int fd_msg_parse_buffer ( uint8_t ** buffer, size_t buflen, struct msg ** msg ); |
| 0 | 2464 |
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2465 /* Parsing Error Information structure */ |
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2466 struct fd_pei { |
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|
2467 char * pei_errcode; /* name of the error code to use */ |
|
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Reporting errors in parse_dict function
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|
2468 struct avp * pei_avp; /* pointer to invalid or missing AVP (to be freed) */ |
|
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Reporting errors in parse_dict function
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|
2469 char * pei_message; /* Overwrite default message if needed */ |
|
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|
2470 int pei_protoerr; /* do we set the 'E' bit in the error message ? */ |
|
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2471 }; |
|
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|
2472 |
| 0 | 2473 /* |
| 2474 * FUNCTION: fd_msg_parse_dict | |
| 2475 * | |
| 2476 * PARAMETERS: | |
| 2477 * object : A msg or AVP object as returned by fd_msg_parse_buffer. | |
| 2478 * dict : the dictionary containing the objects definitions to use for resolving all AVPs. | |
|
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2479 * error_info : If not NULL, will contain the detail about error upon return. May be used to generate an error reply. |
| 0 | 2480 * |
| 2481 * DESCRIPTION: | |
| 2482 * This function looks up for the command and each children AVP definitions in the dictionary. | |
| 2483 * If the dictionary definition is found, avp_model is set and the value of the AVP is interpreted accordingly and: | |
| 2484 * - for grouped AVPs, the children AVP are created and interpreted also. | |
| 2485 * - for numerical AVPs, the value is converted to host byte order and saved in the avp_value field. | |
| 2486 * - for octetstring AVPs, the string is copied into a new buffer and its address is saved in avp_value. | |
| 2487 * If the dictionary definition is not found, avp_model is set to NULL and | |
| 2488 * the content of the AVP is saved as an octetstring in an internal structure. avp_value is NULL. | |
|
637
22e8fac3b2d6
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Sebastien Decugis <sdecugis@nict.go.jp>
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621
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|
2489 * As a result, after this function has been called, there is no more dependency of the msg object to the message buffer, that is freed. |
| 0 | 2490 * |
| 2491 * RETURN VALUE: | |
| 2492 * 0 : The message has been fully parsed as described. | |
| 2493 * EINVAL : The msg parameter is invalid for this operation. | |
| 2494 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
| 2495 * ENOTSUP : No dictionary definition for the command or one of the mandatory AVP was found. | |
| 2496 */ | |
|
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
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|
2497 int fd_msg_parse_dict ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info ); |
|
34
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|
2498 |
| 0 | 2499 /* |
| 2500 * FUNCTION: fd_msg_parse_rules | |
| 2501 * | |
| 2502 * PARAMETERS: | |
| 2503 * object : A msg or grouped avp object that must be verified. | |
| 2504 * dict : The dictionary containing the rules definitions. | |
|
34
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|
2505 * error_info : If not NULL, the first problem information will be saved here. |
| 0 | 2506 * |
| 2507 * DESCRIPTION: | |
| 2508 * Check that the children of the object do not conflict with the dictionary rules (ABNF compliance). | |
| 2509 * | |
| 2510 * RETURN VALUE: | |
| 2511 * 0 : The message has been fully parsed and complies to the defined rules. | |
| 2512 * EBADMSG : A conflict was detected, or a mandatory AVP is unknown in the dictionary. | |
| 2513 * EINVAL : The msg or avp object is invalid for this operation. | |
| 2514 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
| 2515 */ | |
|
620
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|
2516 int fd_msg_parse_rules ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info); |
|
34
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|
2517 |
| 0 | 2518 |
| 2519 | |
| 2520 /* | |
| 2521 * FUNCTION: fd_msg_update_length | |
| 2522 * | |
| 2523 * PARAMETERS: | |
| 2524 * object : Pointer to a valid msg or avp. | |
| 2525 * | |
| 2526 * DESCRIPTION: | |
| 2527 * Update the length field of the object passed as parameter. | |
| 2528 * As a side effect, all children objects are also updated. Therefore, all avp_value fields of | |
| 2529 * the children AVPs must be set, or an error will occur. | |
| 2530 * | |
| 2531 * RETURN VALUE: | |
| 2532 * 0 : The size has been recomputed. | |
| 2533 * EINVAL : A parameter is invalid. | |
| 2534 */ | |
| 2535 int fd_msg_update_length ( msg_or_avp * object ); | |
| 2536 | |
| 2537 | |
|
7
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|
2538 /*============================================================*/ |
|
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2539 /* DISPATCH */ |
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2540 /*============================================================*/ |
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2541 |
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2542 /* Dispatch module (passing incoming messages to extensions registered callbacks) |
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2543 * is split between the library and the daemon. |
|
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2544 * |
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|
2545 * The library provides the support for associating dispatch callbacks with |
|
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2546 * dictionary objects. |
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2547 * |
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2548 * The daemon is responsible for calling the callbacks for a message when appropriate. |
|
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2549 * |
|
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|
2550 * |
|
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|
2551 * The dispatch module has two main roles: |
|
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2552 * - help determine if a message can be handled locally (during the routing step) |
|
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2553 * This decision involves only the application-id of the message. |
|
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2554 * - pass the message to the callback(s) that will handle it (during the dispatch step) |
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2555 * |
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2556 * The first role is handled by the daemon. |
|
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2557 * |
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2558 * About the second, these are the possibilities for registering a dispatch callback: |
|
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2559 * |
|
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2560 * -> For All messages. |
|
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2561 * This callback is called for all messages that are handled locally. This should be used only |
|
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2562 * for debug purpose. |
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2563 * |
|
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2564 * -> by AVP value (constants only). |
|
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2565 * This callback will be called when a message is received and contains an AVP with a specified enumerated value. |
|
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2566 * |
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2567 * -> by AVP. |
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2568 * This callback will be called when the received message contains a certain AVP. |
|
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2569 * |
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2570 * -> by command-code. |
|
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2571 * This callback will be called when the message is a specific command (and 'R' flag). |
|
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2572 * |
|
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2573 * -> by application. |
|
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2574 * This callback will be called when the message has a specific application-id. |
|
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|
2575 * |
|
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|
2576 * ( by vendor: would this be useful? it may be added later) |
|
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|
2577 */ |
|
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|
2578 enum disp_how { |
|
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|
2579 DISP_HOW_ANY = 1, /* Any message. This should be only used for debug. */ |
|
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|
2580 DISP_HOW_APPID, /* Any message with the specified application-id */ |
|
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|
2581 DISP_HOW_CC, /* Messages of the specified command-code (request or answer). App id may be specified. */ |
|
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2582 DISP_HOW_AVP, /* Messages containing a specific AVP. Command-code and App id may be specified. */ |
|
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2583 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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2584 }; |
|
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|
2585 /* |
|
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2586 * Several criteria may be selected at the same time, for example command-code AND application id. |
|
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2587 * |
|
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2588 * If several callbacks are registered for the same object, they are called in the order they were registered. |
|
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2589 * The order in which the callbacks are called is: |
|
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2590 * DISP_HOW_ANY |
|
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2591 * DISP_HOW_AVP_ENUMVAL & DISP_HOW_AVP |
|
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2592 * DISP_HOW_CC |
|
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2593 * DISP_HOW_APPID |
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2594 */ |
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2595 |
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2596 /* When a callback is registered, a "when" argument is passed in addition to the disp_how value, |
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2597 * to specify which values the criteria must match. */ |
|
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2598 struct disp_when { |
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2599 struct dict_object * app; |
|
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2600 struct dict_object * command; |
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2601 struct dict_object * avp; |
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2602 struct dict_object * value; |
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2603 }; |
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2604 |
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2605 /* Note that all the dictionary objects should really belong to the same dictionary! |
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2606 * |
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2607 * Here is the details on this "when" argument, depending on the disp_how value. |
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2608 * |
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2609 * DISP_HOW_ANY. |
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2610 * In this case, "when" must be NULL. |
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2611 * |
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2612 * DISP_HOW_APPID. |
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2613 * Only the "app_id" field must be set, other fields are ignored. It points to a dictionary object of type DICT_APPLICATION. |
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2614 * |
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2615 * DISP_HOW_CC. |
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2616 * The "command" field must be defined and point to a dictionary object of type DICT_COMMAND. |
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2617 * 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. |
|
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2618 * The other fields are ignored. |
|
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2619 * |
|
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2620 * DISP_HOW_AVP. |
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2621 * The "avp" field of the structure must be set and point to a dictionary object of type DICT_AVP. |
|
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parents:
6
diff
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|
2622 * The "app_id" field may be set to restrict the messages matching to a specific app id. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2623 * The "command" field may also be set to a valid DICT_COMMAND object. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2624 * The content of the "value" field is ignored. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2625 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2626 * DISP_HOW_AVP_ENUMVAL. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2627 * All fields have the same constraints and meaning as in DISP_REG_AVP. In addition, the "value" field must be set |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2628 * and points to a valid DICT_ENUMVAL object. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2629 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2630 * Here is a sumary of the fields: ( M : must be set; m : may be set; 0 : ignored ) |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2631 * field: app_id command avp value |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2632 * APPID : M 0 0 0 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2633 * CC : m M 0 0 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2634 * AVP : m m M 0 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2635 * ENUMVA: m m M M |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2636 */ |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2637 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2638 enum disp_action { |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2639 DISP_ACT_CONT, /* The next handler should be called, unless *msg == NULL. */ |
|
90
2c9444152e4b
Added the dispatch thread code
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88
diff
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|
2640 DISP_ACT_SEND, /* The updated message must be sent. No further callback is called. */ |
|
2c9444152e4b
Added the dispatch thread code
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88
diff
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|
2641 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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Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2642 }; |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2643 /* The callbacks that are registered have the following prototype: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2644 * int dispatch_callback( struct msg ** msg, struct avp * avp, struct session * session, enum disp_action * action ); |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2645 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2646 * CALLBACK: dispatch_callback |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2647 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2648 * PARAMETERS: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2649 * 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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|
2650 * 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>
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6
diff
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|
2651 * session : if the message contains a Session-Id AVP, the corresponding session object, NULL otherwise. |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
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638
diff
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|
2652 * opaque : An opaque pointer that is registered along the session handler. |
|
7
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2653 * 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
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|
2654 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2655 * DESCRIPTION: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2656 * 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
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|
2657 * 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
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|
2658 * - create an answer for a request. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2659 * - 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
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|
2660 * - update a routing table or start a connection with a new peer, then forward the message. |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2661 * - ... |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2662 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2663 * 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
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|
2664 * 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
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|
2665 * 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
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|
2666 * - if the message is an answer, it is discarded. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2667 * - 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
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|
2668 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2669 * RETURN VALUE: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2670 * 0 : The callback executed successfully and updated *action appropriately. |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2671 * !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
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|
2672 */ |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2673 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2674 /* 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
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|
2675 struct disp_hdl; |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2676 |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2677 /* |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2678 * FUNCTION: fd_disp_register |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
changeset
|
2679 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2680 * PARAMETERS: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2681 * cb : The callback function to register (see dispatch_callback description above). |
|
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Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2682 * how : How the callback must be registered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2683 * when : Values that must match, depending on the how argument. |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2684 * opaque : A pointer that is passed back to the handler. The content is not interpreted by the framework. |
|
7
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2685 * 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
|
2686 * This handler can be used to unregister the cb. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2687 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2688 * DESCRIPTION: |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2689 * Register a new callback to handle messages delivered locally. |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2690 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2691 * RETURN VALUE: |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2692 * 0 : The callback is registered. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2693 * EINVAL : A parameter is invalid. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2694 * ENOMEM : Not enough memory to complete the operation |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2695 */ |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2696 int fd_disp_register ( int (*cb)( struct msg **, struct avp *, struct session *, void *, enum disp_action *), |
|
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2697 enum disp_how how, struct disp_when * when, void * opaque, struct disp_hdl ** handle ); |
|
7
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6
diff
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|
2698 |
|
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6
diff
changeset
|
2699 /* |
|
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2700 * FUNCTION: fd_disp_unregister |
|
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parents:
6
diff
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|
2701 * |
|
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parents:
6
diff
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|
2702 * PARAMETERS: |
|
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6
diff
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|
2703 * handle : Location of the handle of the callback that must be unregistered. |
|
639
95a784729cac
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Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
2704 * opaque : If not NULL, the opaque data that was registered is restored here. |
|
7
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diff
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|
2705 * |
|
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diff
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|
2706 * DESCRIPTION: |
|
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6
diff
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|
2707 * Removes a callback previously registered by fd_disp_register. |
|
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|
2708 * |
|
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|
2709 * RETURN VALUE: |
|
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|
2710 * 0 : The callback is unregistered. |
|
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|
2711 * EINVAL : A parameter is invalid. |
|
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diff
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|
2712 */ |
|
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
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diff
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|
2713 int fd_disp_unregister ( struct disp_hdl ** handle, void ** opaque ); |
|
7
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2714 |
|
90
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|
2715 /* Destroy all handlers */ |
|
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|
2716 void fd_disp_unregister_all ( void ); |
|
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|
2717 |
|
7
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|
2718 /* |
|
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|
2719 * FUNCTION: fd_msg_dispatch |
|
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diff
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|
2720 * |
|
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|
2721 * PARAMETERS: |
|
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diff
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|
2722 * msg : A msg object that have already been fd_msg_parse_dict. |
|
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|
2723 * session : The session corresponding to this object, if any. |
|
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diff
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|
2724 * action : Upon return, the action that must be taken on the message |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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diff
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|
2725 * error_code : Upon return with action == DISP_ACT_ERROR, contains the error (such as "DIAMETER_UNABLE_TO_COMPLY") |
|
7
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|
2726 * |
|
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|
2727 * DESCRIPTION: |
|
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|
2728 * Call all handlers registered for a given message. |
|
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|
2729 * The session must have already been resolved on entry. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2730 * The msg pointed may be updated during this process. |
|
e5af94b04946
Added dispatch module and tests
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parents:
6
diff
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|
2731 * Upon return, the action parameter points to what must be done next. |
|
e5af94b04946
Added dispatch module and tests
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diff
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|
2732 * |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
2733 * RETURN VALUE: |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2734 * 0 : Success. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2735 * EINVAL : A parameter is invalid. |
|
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2736 * (other errors) |
|
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2737 */ |
|
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
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|
2738 int fd_msg_dispatch ( struct msg ** msg, struct session * session, enum disp_action *action, char ** error_code ); |
|
7
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|
2739 |
|
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|
2740 |
| 0 | 2741 |
| 2742 /*============================================================*/ | |
|
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2743 /* QUEUES */ |
| 0 | 2744 /*============================================================*/ |
| 2745 | |
|
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|
2746 /* Management of FIFO queues of elements */ |
| 0 | 2747 |
|
8
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|
2748 /* A queue is an opaque object */ |
|
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Backup for the week-end
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|
2749 struct fifo; |
| 0 | 2750 |
| 2751 /* | |
|
8
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|
2752 * FUNCTION: fd_fifo_new |
| 0 | 2753 * |
| 2754 * PARAMETERS: | |
|
8
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Backup for the week-end
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diff
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|
2755 * queue : Upon success, a pointer to the new queue is saved here. |
| 0 | 2756 * |
| 2757 * DESCRIPTION: | |
|
8
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Backup for the week-end
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|
2758 * Create a new empty queue. |
| 0 | 2759 * |
| 2760 * RETURN VALUE : | |
|
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|
2761 * 0 : The queue has been initialized successfully. |
| 0 | 2762 * EINVAL : The parameter is invalid. |
| 2763 * ENOMEM : Not enough memory to complete the creation. | |
| 2764 */ | |
|
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
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|
2765 int fd_fifo_new ( struct fifo ** queue ); |
| 0 | 2766 |
| 2767 /* | |
|
8
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|
2768 * FUNCTION: fd_fifo_del |
| 0 | 2769 * |
| 2770 * PARAMETERS: | |
|
8
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parents:
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|
2771 * queue : Pointer to an empty queue to delete. |
| 0 | 2772 * |
| 2773 * DESCRIPTION: | |
|
8
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|
2774 * Destroys a queue. This is only possible if no thread is waiting for an element, |
| 0 | 2775 * and the queue is empty. |
| 2776 * | |
| 2777 * RETURN VALUE: | |
|
8
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|
2778 * 0 : The queue has been destroyed successfully. |
| 0 | 2779 * EINVAL : The parameter is invalid. |
| 2780 */ | |
|
8
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|
2781 int fd_fifo_del ( struct fifo ** queue ); |
| 0 | 2782 |
| 2783 /* | |
|
25
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
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24
diff
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|
2784 * FUNCTION: fd_fifo_move |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
2785 * |
|
67ca08d5bc48
Completed connection context files
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|
2786 * PARAMETERS: |
|
653
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
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649
diff
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|
2787 * oldq : Location of a FIFO that is to be emptied. |
|
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
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649
diff
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|
2788 * newq : A FIFO that will receive the old data. |
|
25
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
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|
2789 * loc_update : if non NULL, a place to store the pointer to new FIFO atomically with the move. |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
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|
2790 * |
|
67ca08d5bc48
Completed connection context files
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parents:
24
diff
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|
2791 * DESCRIPTION: |
|
43
2db15632a63d
Added a large part of connection establishment logic, to test
Sebastien Decugis <sdecugis@nict.go.jp>
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34
diff
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|
2792 * Empties a queue and move its content to another one atomically. |
|
25
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Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
2793 * |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
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|
2794 * RETURN VALUE: |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
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|
2795 * 0 : The queue has been destroyed successfully. |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
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|
2796 * EINVAL : A parameter is invalid. |
|
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
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|
2797 */ |
|
653
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
diff
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|
2798 int fd_fifo_move ( struct fifo * oldq, struct fifo * newq, struct fifo ** loc_update ); |
|
25
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|
2799 |
|
67ca08d5bc48
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|
2800 /* |
|
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|
2801 * FUNCTION: fd_fifo_length |
| 0 | 2802 * |
| 2803 * PARAMETERS: | |
|
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|
2804 * queue : The queue from which to retrieve the number of elements. |
|
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|
2805 * length : Upon success, the current number of elements in the queue is stored here. |
| 0 | 2806 * |
| 2807 * DESCRIPTION: | |
|
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|
2808 * Retrieve the number of elements in a queue. |
| 0 | 2809 * |
| 2810 * RETURN VALUE: | |
| 2811 * 0 : The length of the queue has been written. | |
| 2812 * EINVAL : A parameter is invalid. | |
| 2813 */ | |
|
8
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|
2814 int fd_fifo_length ( struct fifo * queue, int * length ); |
|
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|
2815 int fd_fifo_length_noerr ( struct fifo * queue ); /* no error checking version */ |
| 0 | 2816 |
| 2817 /* | |
|
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2818 * FUNCTION: fd_fifo_setthrhd |
| 0 | 2819 * |
| 2820 * PARAMETERS: | |
| 2821 * queue : The queue for which the thresholds are being set. | |
| 2822 * data : An opaque pointer that is passed to h_cb and l_cb callbacks. | |
| 2823 * high : The high-level threshold. If the number of elements in the queue increase to this value, h_cb is called. | |
| 2824 * h_cb : if not NULL, a callback to call when the queue lengh is bigger than "high". | |
| 2825 * low : The low-level threshold. Must be < high. | |
| 2826 * l_cb : If the number of elements decrease to low, this callback is called. | |
| 2827 * | |
| 2828 * DESCRIPTION: | |
| 2829 * This function allows to adjust the number of producer / consumer threads of a queue. | |
|
8
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|
2830 * If the consumer are slower than the producers, the number of elements in the queue increase. |
| 0 | 2831 * By setting a "high" value, we allow a callback to be called when this number is too high. |
| 2832 * The typical use would be to create an additional consumer thread in this callback. | |
| 2833 * If the queue continues to grow, the callback will be called again when the length is 2 * high, then 3*high, ... N * high | |
|
8
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|
2834 * (the callback itself should implement a limit on the number of consumers that can be created) |
| 0 | 2835 * When the queue starts to decrease, and the number of elements go under ((N - 1) * high + low, the l_cb callback is called |
|
8
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|
2836 * 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 | 2837 * and so on. |
| 2838 * | |
| 2839 * Since there is no destructor for the data pointer, if cleanup operations are required, they should be performed in | |
| 2840 * l_cb when the length of the queue is becoming < low. | |
| 2841 * | |
|
8
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|
2842 * Note that the callbacks are called synchronously, during fd_fifo_post or fd_fifo_get. Their operation should be quick. |
| 0 | 2843 * |
| 2844 * RETURN VALUE: | |
| 2845 * 0 : The thresholds have been set | |
| 2846 * EINVAL : A parameter is invalid. | |
| 2847 */ | |
|
8
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|
2848 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 | 2849 |
| 2850 /* | |
|
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|
2851 * FUNCTION: fd_fifo_post |
| 0 | 2852 * |
| 2853 * PARAMETERS: | |
|
8
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|
2854 * queue : The queue in which the element must be posted. |
|
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|
2855 * item : The element that is put in the queue. |
| 0 | 2856 * |
| 2857 * DESCRIPTION: | |
|
8
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|
2858 * An element is added in a queue. Elements are retrieved from the queue in FIFO order |
|
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|
2859 * with the fd_fifo_get, fd_fifo_tryget, or fd_fifo_timedget functions. |
| 0 | 2860 * |
| 2861 * RETURN VALUE: | |
|
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|
2862 * 0 : The element is queued. |
| 0 | 2863 * EINVAL : A parameter is invalid. |
| 2864 * ENOMEM : Not enough memory to complete the operation. | |
| 2865 */ | |
|
8
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|
2866 int fd_fifo_post_int ( struct fifo * queue, void ** item ); |
|
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|
2867 #define fd_fifo_post(queue, item) \ |
|
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|
2868 fd_fifo_post_int((queue), (void *)(item)) |
| 0 | 2869 |
| 2870 /* | |
|
8
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|
2871 * FUNCTION: fd_fifo_get |
| 0 | 2872 * |
| 2873 * PARAMETERS: | |
|
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|
2874 * queue : The queue from which the first element must be retrieved. |
|
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|
2875 * item : On return, the first element of the queue is stored here. |
| 0 | 2876 * |
| 2877 * DESCRIPTION: | |
|
8
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|
2878 * This function retrieves the first element from a queue. If the queue is empty, the function will block the |
|
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|
2879 * thread until a new element is posted to the queue, or until the thread is canceled (in which case the |
| 0 | 2880 * function does not return). |
| 2881 * | |
| 2882 * RETURN VALUE: | |
|
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|
2883 * 0 : A new element has been retrieved. |
| 0 | 2884 * EINVAL : A parameter is invalid. |
| 2885 */ | |
|
620
bc7328e600f0
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|
2886 int fd_fifo_get_int ( struct fifo * queue, void ** item ); |
|
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|
2887 #define fd_fifo_get(queue, item) \ |
|
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|
2888 fd_fifo_get_int((queue), (void *)(item)) |
| 0 | 2889 |
| 2890 /* | |
|
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|
2891 * FUNCTION: fd_fifo_tryget |
| 0 | 2892 * |
| 2893 * PARAMETERS: | |
|
8
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|
2894 * queue : The queue from which the element must be retrieved. |
|
124
cc42d8607114
Completed cleanups of queues when the daemon is stopping
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|
2895 * item : On return, the first element of the queue is stored here. |
| 0 | 2896 * |
| 2897 * DESCRIPTION: | |
|
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|
2898 * This function is similar to fd_fifo_get, except that it will not block if |
| 0 | 2899 * the queue is empty, but return EWOULDBLOCK instead. |
| 2900 * | |
| 2901 * RETURN VALUE: | |
|
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|
2902 * 0 : A new element has been retrieved. |
| 0 | 2903 * EINVAL : A parameter is invalid. |
| 2904 * EWOULDBLOCK : The queue was empty. | |
| 2905 */ | |
|
620
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|
2906 int fd_fifo_tryget_int ( struct fifo * queue, void ** item ); |
|
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|
2907 #define fd_fifo_tryget(queue, item) \ |
|
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|
2908 fd_fifo_tryget_int((queue), (void *)(item)) |
| 0 | 2909 |
| 2910 /* | |
|
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2911 * FUNCTION: fd_fifo_timedget |
| 0 | 2912 * |
| 2913 * PARAMETERS: | |
|
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2914 * queue : The queue from which the element must be retrieved. |
|
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2915 * item : On return, the element is stored here. |
|
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|
2916 * abstime : the absolute time until which we allow waiting for an item. |
| 0 | 2917 * |
| 2918 * DESCRIPTION: | |
|
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|
2919 * This function is similar to fd_fifo_get, except that it will block if the queue is empty |
| 0 | 2920 * only until the absolute time abstime (see pthread_cond_timedwait for + info). |
| 2921 * If the queue is still empty when the time expires, the function returns ETIMEDOUT | |
| 2922 * | |
| 2923 * RETURN VALUE: | |
|
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2924 * 0 : A new item has been retrieved. |
| 0 | 2925 * EINVAL : A parameter is invalid. |
|
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2926 * ETIMEDOUT : The time out has passed and no item has been received. |
| 0 | 2927 */ |
|
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2928 int fd_fifo_timedget_int ( struct fifo * queue, void ** item, const struct timespec *abstime ); |
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2929 #define fd_fifo_timedget(queue, item, abstime) \ |
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2930 fd_fifo_timedget_int((queue), (void *)(item), (abstime)) |
| 0 | 2931 |
|
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2932 /* Dump a fifo list and optionally its inner elements -- beware of deadlocks! */ |
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2933 void fd_fifo_dump(int level, char * name, struct fifo * queue, void (*dump_item)(int level, void * item)); |
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2934 |
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2935 #endif /* _LIBFDPROTO_H */ |