Mercurial > hg > freeDiameter
annotate include/freeDiameter/libfdproto.h @ 941:64088de91f7f
Initial logging rework by Thomas
author | Sebastien Decugis <sdecugis@freediameter.net> |
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date | Sat, 19 Jan 2013 17:42:12 +0100 |
parents | b772af200865 |
children | 5d9229144cac |
rev | line source |
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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) 2012, WIDE Project and NICT * |
0 | 6 * All rights reserved. * |
7 * * | |
8 * Redistribution and use of this software in source and binary forms, with or without modification, are * | |
9 * permitted provided that the following conditions are met: * | |
10 * * | |
11 * * Redistributions of source code must retain the above * | |
12 * copyright notice, this list of conditions and the * | |
13 * following disclaimer. * | |
14 * * | |
15 * * Redistributions in binary form must reproduce the above * | |
16 * copyright notice, this list of conditions and the * | |
17 * following disclaimer in the documentation and/or other * | |
18 * materials provided with the distribution. * | |
19 * * | |
20 * * Neither the name of the WIDE Project or NICT nor the * | |
21 * names of its contributors may be used to endorse or * | |
22 * promote products derived from this software without * | |
23 * specific prior written permission of WIDE Project and * | |
24 * NICT. * | |
25 * * | |
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED * | |
27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * | |
28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * | |
29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * | |
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * | |
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * | |
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32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY S_OUT OF THE USE OF THIS SOFTWARE, EVEN IF * |
0 | 33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * |
34 *********************************************************************************************************/ | |
35 | |
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36 /* This file contains the definitions of functions and types used by the libfreeDiameter library. |
0 | 37 * |
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38 * This library is meant to be used by both the freeDiameter daemon and its extensions. |
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39 * It provides the tools to manipulate Diameter messages and related data. |
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40 * This file should always be included as #include <freeDiameter/libfreeDiameter.h> |
0 | 41 * |
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42 * If any change is made to this file, you must increment the FD_PROJECT_VERSION_API version. |
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43 * |
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44 * The file contains the following parts: |
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45 * DEBUG |
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46 * MACROS |
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47 * OCTET STRINGS |
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48 * THREADS |
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49 * LISTS |
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50 * DICTIONARY |
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51 * SESSIONS |
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52 * MESSAGES |
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53 * DISPATCH |
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54 * QUEUES |
0 | 55 */ |
56 | |
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57 #ifndef _LIBFDPROTO_H |
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58 #define _LIBFDPROTO_H |
0 | 59 |
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60 #ifdef __cplusplus |
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61 extern "C" { |
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62 #endif |
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63 |
0 | 64 #ifndef FD_IS_CONFIG |
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65 #error "You must include 'freeDiameter-host.h' before this file." |
0 | 66 #endif /* FD_IS_CONFIG */ |
67 | |
68 #include <pthread.h> | |
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69 #include <sched.h> |
0 | 70 #include <string.h> |
71 #include <assert.h> | |
72 #include <errno.h> | |
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73 #include <netinet/in.h> |
0 | 74 #include <arpa/inet.h> |
75 #include <sys/socket.h> | |
76 #include <netdb.h> | |
77 #include <stdio.h> | |
78 #include <stdlib.h> | |
79 #include <unistd.h> | |
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80 #include <stdarg.h> |
0 | 81 |
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82 #ifdef DEBUG |
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83 #include <libgen.h> /* for basename if --dbg_file is specified */ |
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84 #endif /* DEBUG */ |
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85 |
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86 |
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87 /*============================================================*/ |
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88 /* CONSTANTS */ |
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89 /*============================================================*/ |
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90 |
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91 #define DIAMETER_PORT 3868 |
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92 #define DIAMETER_SECURE_PORT 3869 |
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93 |
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94 |
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95 /*============================================================*/ |
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96 /* INIT */ |
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97 /*============================================================*/ |
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98 |
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99 /* This function must be called first, before any call to another library function */ |
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100 int fd_libproto_init(void); /* note if you are using libfdcore, it handles this already */ |
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101 |
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102 /* Call this one when the application terminates, to destroy internal threads */ |
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103 void fd_libproto_fini(void); |
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104 |
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105 |
0 | 106 /*============================================================*/ |
107 /* DEBUG */ | |
108 /*============================================================*/ | |
109 | |
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110 |
0 | 111 /* |
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112 * FUNCTION: fd_log |
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113 * MACRO: fd_log_debug |
0 | 114 * |
115 * PARAMETERS: | |
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116 * loglevel : Integer, how important the message is |
0 | 117 * format : Same format string as in the printf function |
118 * ... : Same list as printf | |
119 * | |
120 * DESCRIPTION: | |
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121 * Write information to log. |
0 | 122 * The format and arguments may contain UTF-8 encoded data. The |
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123 * output medium is expected to support this encoding. |
0 | 124 * |
125 * RETURN VALUE: | |
126 * None. | |
127 */ | |
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128 void fd_log ( int, const char *, ... ); |
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129 #define fd_log_debug(format,args...) fd_log(FD_LOG_DEBUG, format, ## args) |
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130 void fd_log_debug_fstr( FILE *, const char *, ... ); |
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131 |
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132 /* these are internal objects of the debug facility, |
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133 might be useful to control the behavior from outside */ |
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135 extern char * fd_debug_one_function; |
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136 extern char * fd_debug_one_file; |
0 | 137 |
138 /* | |
139 * FUNCTION: fd_log_threadname | |
140 * | |
141 * PARAMETERS: | |
142 * name : \0-terminated string containing a name to identify the current thread. | |
143 * | |
144 * DESCRIPTION: | |
145 * Name the current thread, useful for debugging multi-threaded problems. | |
146 * | |
147 * This function assumes that a global thread-specific key called "fd_log_thname" exists | |
148 * in the address space of the current process. | |
149 * | |
150 * RETURN VALUE: | |
151 * None. | |
152 */ | |
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153 void fd_log_threadname ( const char * name ); |
0 | 154 extern pthread_key_t fd_log_thname; |
155 | |
156 /* | |
157 * FUNCTION: fd_log_time | |
158 * | |
159 * PARAMETERS: | |
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160 * ts : The timestamp to log, or NULL for "now" |
0 | 161 * buf : An array where the time must be stored |
162 * len : size of the buffer | |
163 * | |
164 * DESCRIPTION: | |
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165 * Writes the timestamp (in human readable format) in a buffer. |
0 | 166 * |
167 * RETURN VALUE: | |
168 * pointer to buf. | |
169 */ | |
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170 char * fd_log_time ( struct timespec * ts, char * buf, size_t len ); |
0 | 171 |
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172 /* |
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173 * FUNCTION: fd_log_handler_register |
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174 * MACRO: |
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175 * |
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176 * PARAMETERS: |
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177 * loglevel : priority of the message |
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178 * format : Same format string as in the printf function |
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179 * va_list : Argument list |
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180 * |
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181 * DESCRIPTION: |
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182 * Register an external method for logging purposes. |
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183 * |
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184 * RETURN VALUE: |
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185 * int : Success or failure |
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186 */ |
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187 int fd_log_handler_register ( void (*logger)(int loglevel, const char * format, va_list args) ); |
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188 |
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189 /* |
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190 * FUNCTION: fd_log_handler_unregister |
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191 * MACRO: |
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192 * |
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193 * PARAMETERS: |
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194 * |
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195 * DESCRIPTION: |
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196 * Unregister the external logging function. |
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197 * |
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198 * RETURN VALUE: |
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199 * int : Success or failure |
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200 */ |
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201 int fd_log_handler_unregister ( void ); |
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202 |
0 | 203 |
226
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204 /*============================================================*/ |
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205 /* DEBUG MACROS */ |
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206 /*============================================================*/ |
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207 |
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208 #ifndef ASSERT |
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209 #define ASSERT(x) assert(x) |
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210 #endif /* ASSERT */ |
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211 |
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212 /* log levels definitions */ |
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213 #define FD_LOG_DEBUG 0 |
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214 #define FD_LOG_ERROR 5 |
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215 |
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216 /* print level definitions */ |
0 | 217 #define NONE 0 /* Display no debug message */ |
218 #define INFO 1 /* Display errors only */ | |
219 #define FULL 2 /* Display additional information to follow code execution */ | |
220 #define ANNOYING 4 /* Very verbose, for example in loops */ | |
221 #define FCTS 6 /* Display entry parameters of most functions */ | |
222 #define CALL 9 /* Display calls to most functions (with CHECK macros) */ | |
223 | |
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224 /* Increment the debug level for a file at compilation time by defining -DTRACE_LEVEL=FULL for example. */ |
0 | 225 #ifndef TRACE_LEVEL |
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226 #define TRACE_LEVEL NONE |
0 | 227 #endif /* TRACE_LEVEL */ |
228 | |
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229 /* The level of the file being compiled. */ |
0 | 230 static int local_debug_level = TRACE_LEVEL; |
231 | |
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232 /* A global level, changed by configuration or cmd line for example. Default is INFO (in libfdproto/log.c). */ |
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233 extern int fd_g_debug_lvl; |
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234 |
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235 /* Some portability code to get nice function name in __PRETTY_FUNCTION__ */ |
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236 #if (!defined( __func__)) && (__STDC_VERSION__ < 199901L) |
0 | 237 # if __GNUC__ >= 2 |
238 # define __func__ __FUNCTION__ | |
239 # else /* __GNUC__ >= 2 */ | |
240 # define __func__ "<unknown>" | |
241 # endif /* __GNUC__ >= 2 */ | |
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242 #endif /*(!defined( __func__)) && (__STDC_VERSION__ < 199901L) */ |
0 | 243 #ifndef __PRETTY_FUNCTION__ |
244 #define __PRETTY_FUNCTION__ __func__ | |
245 #endif /* __PRETTY_FUNCTION__ */ | |
246 | |
205
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247 /* A version of __FILE__ without the full path */ |
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248 static char * file_bname = NULL; |
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249 #define __STRIPPED_FILE__ (file_bname ?: (file_bname = basename((char *)__FILE__))) |
205
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250 |
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251 |
0 | 252 /* Boolean for tracing at a certain level */ |
205
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253 #ifdef DEBUG |
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254 #define TRACE_BOOL(_level_) ( ((_level_) <= local_debug_level + fd_g_debug_lvl) \ |
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255 || (fd_debug_one_function && !strcmp(fd_debug_one_function, __PRETTY_FUNCTION__)) \ |
205
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256 || (fd_debug_one_file && !strcmp(fd_debug_one_file, __STRIPPED_FILE__) ) ) |
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257 #else /* DEBUG */ |
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258 #define TRACE_BOOL(_level_) ((_level_) <= local_debug_level + fd_g_debug_lvl) |
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259 #endif /* DEBUG */ |
0 | 260 |
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261 |
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262 /************* |
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263 The general debug macro, each call results in two lines of debug messages (change the macro for more compact output) |
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264 *************/ |
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265 #ifdef DEBUG |
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266 /* In DEBUG mode, we add (a lot of) meta-information along each trace. This makes multi-threading problems easier to debug. */ |
0 | 267 #define TRACE_DEBUG(level,format,args... ) { \ |
268 if ( TRACE_BOOL(level) ) { \ | |
269 char __buf[25]; \ | |
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270 const char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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271 fd_log(level, "\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
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272 "\t%s|%*s" format, \ |
206 | 273 __thn, fd_log_time(NULL, __buf, sizeof(__buf)), __PRETTY_FUNCTION__, __FILE__, __LINE__,\ |
0 | 274 (level < FULL)?"@":" ",level, "", ## args); \ |
275 } \ | |
276 } | |
302
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277 #else /* DEBUG */ |
304
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278 /* Do not print thread, function, ... only the message itself in this case, unless the debug level is set > FULL. */ |
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279 #define TRACE_DEBUG(level,format,args... ) { \ |
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280 if ( TRACE_BOOL(level) ) { \ |
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281 if (fd_g_debug_lvl > FULL) { \ |
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282 char __buf[25]; \ |
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283 const char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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284 fd_log(level, "\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
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285 "\t%s|%*s" format, \ |
304
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286 __thn, fd_log_time(NULL, __buf, sizeof(__buf)), __PRETTY_FUNCTION__, __FILE__, __LINE__,\ |
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287 (level < FULL)?"@":" ",level, "", ## args); \ |
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288 } else { \ |
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289 fd_log(level, format, ## args); \ |
304
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290 } \ |
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291 } \ |
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292 } |
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293 #endif /* DEBUG */ |
0 | 294 |
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295 /************* |
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296 Derivatives from this macro |
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297 ************/ |
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298 /* Helper for function entry -- for very detailed trace of the execution */ |
0 | 299 #define TRACE_ENTRY(_format,_args... ) \ |
29
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300 TRACE_DEBUG(FCTS, "[enter] %s(" _format ") {" #_args "}", __PRETTY_FUNCTION__, ##_args ); |
0 | 301 |
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302 /* Helper for debugging by adding traces -- for debuging a specific location of the code */ |
0 | 303 #define TRACE_HERE() \ |
183
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304 TRACE_DEBUG(NONE, " -- debug checkpoint %d -- ", fd_breakhere()); |
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305 int fd_breakhere(void); |
0 | 306 |
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307 /* Helper for tracing the CHECK_* macros bellow -- very very verbose code execution! */ |
0 | 308 #define TRACE_DEBUG_ALL( str ) \ |
309 TRACE_DEBUG(CALL, str ); | |
310 | |
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311 /* For development only, to keep track of TODO locations in the code */ |
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312 #ifndef ERRORS_ON_TODO |
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313 #define TODO( _msg, _args... ) \ |
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314 TRACE_DEBUG(NONE, "TODO: " _msg , ##_args); |
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315 #else /* ERRORS_ON_TODO */ |
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316 #define TODO( _msg, _args... ) \ |
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317 "TODO" = _msg ## _args; /* just a stupid compilation error to spot the todo */ |
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318 #endif /* ERRORS_ON_TODO */ |
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319 |
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320 /* Trace a binary buffer content */ |
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321 #define TRACE_DEBUG_BUFFER(level, prefix, buf, bufsz, suffix ) { \ |
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322 if ( TRACE_BOOL(level) ) { \ |
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323 char __ts[25]; \ |
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324 int __i; \ |
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325 size_t __sz = (size_t)(bufsz); \ |
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326 uint8_t * __buf = (uint8_t *)(buf); \ |
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327 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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328 fd_log(level, "\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
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329 "\t%s|%*s" prefix , \ |
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330 __thn, fd_log_time(NULL, __ts, sizeof(__ts)), __PRETTY_FUNCTION__, __FILE__, __LINE__, \ |
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331 (level < FULL)?"@":" ",level, ""); \ |
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332 for (__i = 0; __i < __sz; __i++) { \ |
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333 fd_log(level, "%02.2hhx", __buf[__i]); \ |
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334 } \ |
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335 fd_log(level, suffix); \ |
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336 } \ |
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337 } |
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338 |
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339 /* Some aliases to socket addresses structures */ |
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340 #define sSS struct sockaddr_storage |
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341 #define sSA struct sockaddr |
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342 #define sSA4 struct sockaddr_in |
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343 #define sSA6 struct sockaddr_in6 |
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344 |
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345 /* The sockaddr length of a sSS structure */ |
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346 #define sSAlen( _sa_ ) \ |
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347 ( (socklen_t) ( (((sSA *)_sa_)->sa_family == AF_INET) ? (sizeof(sSA4)) : \ |
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348 ((((sSA *)_sa_)->sa_family == AF_INET6) ? (sizeof(sSA6)) : \ |
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349 0 ) ) ) |
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350 |
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351 /* Dump one sockaddr Node information */ |
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352 #define sSA_DUMP_NODE( sa, flag ) { \ |
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353 sSA * __sa = (sSA *)(sa); \ |
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354 char __addrbuf[INET6_ADDRSTRLEN]; \ |
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355 if (__sa) { \ |
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356 int __rc = getnameinfo(__sa, \ |
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357 sSAlen(__sa), \ |
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358 __addrbuf, \ |
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359 sizeof(__addrbuf), \ |
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360 NULL, \ |
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361 0, \ |
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362 flag); \ |
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363 if (__rc) \ |
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364 fd_log_debug("%s", (char *)gai_strerror(__rc)); \ |
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365 else \ |
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366 fd_log_debug("%s", &__addrbuf[0]); \ |
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367 } else { \ |
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368 fd_log_debug("(NULL / ANY)"); \ |
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369 } \ |
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370 } |
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371 /* Same but with the port (service) also */ |
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372 #define sSA_DUMP_NODE_SERV( sa, flag ) { \ |
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373 sSA * __sa = (sSA *)(sa); \ |
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374 char __addrbuf[INET6_ADDRSTRLEN]; \ |
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375 char __servbuf[32]; \ |
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376 if (__sa) { \ |
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377 int __rc = getnameinfo(__sa, \ |
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378 sSAlen(__sa), \ |
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379 __addrbuf, \ |
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380 sizeof(__addrbuf), \ |
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381 __servbuf, \ |
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382 sizeof(__servbuf), \ |
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383 flag); \ |
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384 if (__rc) \ |
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385 fd_log_debug("%s", (char *)gai_strerror(__rc)); \ |
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386 else \ |
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387 fd_log_debug("[%s]:%s", &__addrbuf[0],&__servbuf[0]); \ |
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388 } else { \ |
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389 fd_log_debug("(NULL / ANY)"); \ |
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390 } \ |
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391 } |
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392 |
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393 /* Inside a debug trace */ |
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394 #define TRACE_DEBUG_sSA(level, prefix, sa, flags, suffix ) { \ |
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395 if ( TRACE_BOOL(level) ) { \ |
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396 char __buf[25]; \ |
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397 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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398 fd_log(level, "\t | tid:%-20s\t%s\tin %s@%s:%d\n" \ |
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399 "\t%s|%*s" prefix , \ |
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400 __thn, fd_log_time(NULL, __buf, sizeof(__buf)), __PRETTY_FUNCTION__, __FILE__, __LINE__,\ |
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401 (level < FULL)?"@":" ",level, ""); \ |
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402 sSA_DUMP_NODE_SERV( sa, flags ); \ |
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403 fd_log(level, suffix); \ |
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404 } \ |
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405 } |
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406 |
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407 /* Report an error */ |
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408 #define TRACE_DEBUG_ERROR(format,args... ) \ |
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409 TRACE_DEBUG(INFO, format, ##args) |
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410 |
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411 /****************** |
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412 Optimized code: remove all debugging code |
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413 **/ |
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414 #ifdef STRIP_DEBUG_CODE |
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415 #undef TRACE_DEBUG |
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416 #undef TRACE_BOOL |
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417 #undef TRACE_DEBUG_sSA |
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418 #undef TRACE_DEBUG_BUFFER |
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419 #undef TRACE_DEBUG_ERROR |
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420 #define TRACE_DEBUG(level,format,args... ) |
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421 #define TRACE_BOOL(_level_) (0) |
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422 #define TRACE_DEBUG_BUFFER(level, prefix, buf, bufsz, suffix ) |
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423 #define TRACE_DEBUG_sSA(level, prefix, sa, flags, suffix ) |
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424 #define TRACE_DEBUG_ERROR(format,args... ) { \ |
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425 fd_log(FD_LOG_ERROR, format, ## args); \ |
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426 } |
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427 #endif /* STRIP_DEBUG_CODE */ |
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428 |
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429 |
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430 /*============================================================*/ |
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431 /* ERROR CHECKING MACRO */ |
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432 /*============================================================*/ |
0 | 433 |
434 /* Macros to check a return value and branch out in case of error. | |
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435 * These macro should be used only when errors are improbable, not for expected errors. |
0 | 436 */ |
437 | |
438 /* Check the return value of a system function and execute fallback in case of error */ | |
439 #define CHECK_SYS_DO( __call__, __fallback__ ) { \ | |
440 int __ret__; \ | |
441 TRACE_DEBUG_ALL( "Check SYS: " #__call__ ); \ | |
442 __ret__ = (__call__); \ | |
443 if (__ret__ < 0) { \ | |
444 int __err__ = errno; /* We may handle EINTR here */ \ | |
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445 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "' :\t%s", strerror(__err__));\ |
0 | 446 __fallback__; \ |
447 } \ | |
448 } | |
449 /* Check the return value of a system function, return error code on error */ | |
450 #define CHECK_SYS( __call__ ) { \ | |
451 int __ret__; \ | |
452 TRACE_DEBUG_ALL( "Check SYS: " #__call__ ); \ | |
453 __ret__ = (__call__); \ | |
454 if (__ret__ < 0) { \ | |
455 int __err__ = errno; /* We may handle EINTR here */ \ | |
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456 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "' :\t%s", strerror(__err__));\ |
0 | 457 return __err__; \ |
458 } \ | |
459 } | |
460 | |
461 /* Check the return value of a POSIX function and execute fallback in case of error or special value */ | |
462 #define CHECK_POSIX_DO2( __call__, __speval__, __fallback1__, __fallback2__ ) { \ | |
463 int __ret__; \ | |
464 TRACE_DEBUG_ALL( "Check POSIX: " #__call__ ); \ | |
465 __ret__ = (__call__); \ | |
466 if (__ret__ != 0) { \ | |
467 if (__ret__ == (__speval__)) { \ | |
468 __fallback1__; \ | |
469 } else { \ | |
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470 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__ret__)); \ |
0 | 471 __fallback2__; \ |
472 } \ | |
473 } \ | |
474 } | |
475 | |
476 /* Check the return value of a POSIX function and execute fallback in case of error */ | |
477 #define CHECK_POSIX_DO( __call__, __fallback__ ) \ | |
478 CHECK_POSIX_DO2( (__call__), 0, , __fallback__ ); | |
479 | |
480 /* Check the return value of a POSIX function and return it if error */ | |
481 #define CHECK_POSIX( __call__ ) { \ | |
482 int __v__; \ | |
483 CHECK_POSIX_DO( __v__ = (__call__), return __v__ ); \ | |
484 } | |
485 | |
486 /* Check that a memory allocator did not return NULL, otherwise log an error and execute fallback */ | |
487 #define CHECK_MALLOC_DO( __call__, __fallback__ ) { \ | |
488 void * __ret__; \ | |
489 TRACE_DEBUG_ALL( "Check MALLOC: " #__call__ ); \ | |
490 __ret__ = (void *)( __call__ ); \ | |
491 if (__ret__ == NULL) { \ | |
492 int __err__ = errno; \ | |
594
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493 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__err__)); \ |
0 | 494 __fallback__; \ |
495 } \ | |
496 } | |
497 | |
498 /* Check that a memory allocator did not return NULL, otherwise return ENOMEM */ | |
499 #define CHECK_MALLOC( __call__ ) \ | |
500 CHECK_MALLOC_DO( __call__, return ENOMEM ); | |
501 | |
502 | |
503 /* Check parameters at function entry, execute fallback on error */ | |
594
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504 #define CHECK_PARAMS_DO( __bool__, __fallback__ ) \ |
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505 TRACE_DEBUG_ALL( "Check PARAMS: " #__bool__ ); \ |
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506 if ( ! (__bool__) ) { \ |
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507 TRACE_DEBUG_ERROR("Warning: Invalid parameter received in '" #__bool__ "'"); \ |
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508 __fallback__; \ |
0 | 509 } |
510 /* Check parameters at function entry, return EINVAL if the boolean is false (similar to assert) */ | |
511 #define CHECK_PARAMS( __bool__ ) \ | |
512 CHECK_PARAMS_DO( __bool__, return EINVAL ); | |
513 | |
514 /* Check the return value of an internal function, log and propagate */ | |
515 #define CHECK_FCT_DO( __call__, __fallback__ ) { \ | |
516 int __ret__; \ | |
517 TRACE_DEBUG_ALL( "Check FCT: " #__call__ ); \ | |
518 __ret__ = (__call__); \ | |
519 if (__ret__ != 0) { \ | |
594
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520 TRACE_DEBUG_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__ret__)); \ |
0 | 521 __fallback__; \ |
522 } \ | |
523 } | |
524 /* Check the return value of a function call, return any error code */ | |
525 #define CHECK_FCT( __call__ ) { \ | |
526 int __v__; \ | |
527 CHECK_FCT_DO( __v__ = (__call__), return __v__ ); \ | |
528 } | |
529 | |
618
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Attempting to improve python wrapper usability (work in progress)
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530 |
3
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531 |
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532 /*============================================================*/ |
226
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533 /* OTHER MACROS */ |
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534 /*============================================================*/ |
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535 |
618
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536 |
3
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537 /* helper macros (pre-processor hacks to allow macro arguments) */ |
653
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538 #define __tostr( arg ) #arg |
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539 #define _stringize( arg ) __tostr( arg ) |
3
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540 #define __agr( arg1, arg2 ) arg1 ## arg2 |
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541 #define _aggregate( arg1, arg2 ) __agr( arg1, arg2 ) |
0 | 542 |
543 | |
20
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544 /* A l4 protocol name (TCP / SCTP) */ |
33
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545 #ifdef DISABLE_SCTP |
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546 #define IPPROTO_NAME( _proto ) \ |
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547 (((_proto) == IPPROTO_TCP) ? "TCP" : \ |
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diff
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548 "Unknown") |
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549 #else /* DISABLE_SCTP */ |
20
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550 #define IPPROTO_NAME( _proto ) \ |
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551 ( ((_proto) == IPPROTO_TCP) ? "TCP" : \ |
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552 (((_proto) == IPPROTO_SCTP) ? "SCTP" : \ |
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553 "Unknown")) |
33
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554 #endif /* DISABLE_SCTP */ |
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555 |
0 | 556 /* Define the value of IP loopback address */ |
557 #ifndef INADDR_LOOPBACK | |
558 #define INADDR_LOOPBACK inet_addr("127.0.0.1") | |
559 #endif /* INADDR_LOOPBACK */ | |
560 | |
512
16224de837fd
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561 #ifndef INADDR_BROADCAST |
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562 #define INADDR_BROADCAST ((in_addr_t) 0xffffffff) |
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563 #endif /* INADDR_BROADCAST */ |
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564 |
134
6b2989c066a6
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565 /* An IP equivalent to IN6_IS_ADDR_LOOPBACK */ |
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566 #ifndef IN_IS_ADDR_LOOPBACK |
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567 #define IN_IS_ADDR_LOOPBACK(a) \ |
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568 ((((long int) (a)->s_addr) & ntohl(0xff000000)) == ntohl(0x7f000000)) |
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569 #endif /* IN_IS_ADDR_LOOPBACK */ |
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570 |
135
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571 /* An IP equivalent to IN6_IS_ADDR_UNSPECIFIED */ |
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572 #ifndef IN_IS_ADDR_UNSPECIFIED |
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573 #define IN_IS_ADDR_UNSPECIFIED(a) \ |
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574 (((long int) (a)->s_addr) == 0x00000000) |
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575 #endif /* IN_IS_ADDR_UNSPECIFIED */ |
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576 |
0 | 577 /* create a V4MAPPED address */ |
578 #define IN6_ADDR_V4MAP( a6, a4 ) { \ | |
579 ((uint32_t *)(a6))[0] = 0; \ | |
580 ((uint32_t *)(a6))[1] = 0; \ | |
581 ((uint32_t *)(a6))[2] = htonl(0xffff); \ | |
582 ((uint32_t *)(a6))[3] = (uint32_t)(a4); \ | |
583 } | |
584 | |
585 /* Retrieve a v4 value from V4MAPPED address ( takes a s6_addr as param) */ | |
586 #define IN6_ADDR_V4UNMAP( a6 ) \ | |
587 (((in_addr_t *)(a6))[3]) | |
588 | |
589 | |
590 /* We provide macros to convert 64 bit values to and from network byte-order, on systems where it is not already provided. */ | |
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591 #ifndef HAVE_NTOHLL /* Defined by the cmake step, if the ntohll symbol is defined on the system */ |
0 | 592 # if HOST_BIG_ENDIAN |
593 /* In big-endian systems, we don't have to change the values, since the order is the same as network */ | |
594 # define ntohll(x) (x) | |
595 # define htonll(x) (x) | |
596 # else /* HOST_BIG_ENDIAN */ | |
597 /* For these systems, we must reverse the bytes. Use ntohl and htonl on sub-32 blocs, and inverse these blocs. */ | |
598 # define ntohll(x) (typeof (x))( (((uint64_t)ntohl( (uint32_t)(x))) << 32 ) | ((uint64_t) ntohl( ((uint64_t)(x)) >> 32 ))) | |
599 # define htonll(x) (typeof (x))( (((uint64_t)htonl( (uint32_t)(x))) << 32 ) | ((uint64_t) htonl( ((uint64_t)(x)) >> 32 ))) | |
600 # endif /* HOST_BIG_ENDIAN */ | |
601 #endif /* HAVE_NTOHLL */ | |
602 | |
3
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603 /* This macro will give the next multiple of 4 for an integer (used for padding sizes of AVP). */ |
0 | 604 #define PAD4(_x) ((_x) + ( (4 - (_x)) & 3 ) ) |
605 | |
226
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606 /* Useful to display any value as (safe) ASCII (will garbage UTF-8 output...) */ |
0 | 607 #define ASCII(_c) ( ((_c < 32) || (_c > 127)) ? ( _c ? '?' : ' ' ) : _c ) |
608 | |
609 /* Compare timespec structures */ | |
610 #define TS_IS_INFERIOR( ts1, ts2 ) \ | |
611 ( ((ts1)->tv_sec < (ts2)->tv_sec ) \ | |
5
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612 || (((ts1)->tv_sec == (ts2)->tv_sec ) && ((ts1)->tv_nsec < (ts2)->tv_nsec) )) |
0 | 613 |
895
fbf77629cb7b
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diff
changeset
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614 /* Compute diff between two timespecs (pointers) */ |
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615 #define TS_DIFFERENCE( tsdiff, tsstart, tsend ) { \ |
fbf77629cb7b
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616 if ((tsend)->tv_nsec < (tsstart)->tv_nsec ) { \ |
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617 (tsdiff)->tv_sec = (tsend)->tv_sec - (tsstart)->tv_sec - 1; \ |
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diff
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618 (tsdiff)->tv_nsec = (tsend)->tv_nsec + 1000000000 - (tsstart)->tv_nsec; \ |
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619 } else { \ |
fbf77629cb7b
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620 (tsdiff)->tv_sec = (tsend)->tv_sec - (tsstart)->tv_sec; \ |
fbf77629cb7b
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diff
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621 (tsdiff)->tv_nsec = (tsend)->tv_nsec - (tsstart)->tv_nsec; \ |
fbf77629cb7b
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622 }} |
fbf77629cb7b
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623 |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
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diff
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624 |
542
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
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diff
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625 /* This gives a good size for buffered reads */ |
0b6cee362f5d
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diff
changeset
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626 #ifndef BUFSIZ |
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diff
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627 #define BUFSIZ 96 |
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628 #endif /* BUFSIZ */ |
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
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diff
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629 |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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diff
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630 /* This gives the length of a const string */ |
4ffbc9f1e922
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diff
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631 #define CONSTSTRLEN( str ) (sizeof(str) - 1) |
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Large UNTESTED commit with the following changes:
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632 |
4ffbc9f1e922
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633 |
4ffbc9f1e922
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634 /*============================================================*/ |
836
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635 /* PORTABILITY */ |
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636 /*============================================================*/ |
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diff
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637 #ifndef HAVE_CLOCK_GETTIME |
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638 #define CLOCK_REALTIME 0 |
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639 #include <sys/time.h> |
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640 int clock_gettime(int clk_id, struct timespec* ts); |
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diff
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641 #endif /* HAVE_CLOCK_GETTIME */ |
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diff
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642 |
849
d7f940afd933
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diff
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643 #ifndef HAVE_STRNDUP |
850
12e7fcbc1b21
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diff
changeset
|
644 char * strndup (char *str, size_t len); |
849
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645 #endif /* HAVE_STRNDUP */ |
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646 |
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647 |
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648 /*============================================================*/ |
706
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649 /* BINARY STRINGS */ |
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650 /*============================================================*/ |
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651 |
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652 /* Compute a hash value of a binary string. |
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653 The hash must remain local to this machine, there is no guarantee that same input |
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654 will give same output on a different system (endianness) */ |
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655 uint32_t fd_os_hash ( uint8_t * string, size_t len ); |
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656 |
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657 /* This type used for binary strings that contain no \0 except as their last character. |
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658 It means some string operations can be used on it. */ |
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659 typedef uint8_t * os0_t; |
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660 |
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661 /* Same as strdup but for os0_t strings */ |
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662 os0_t os0dup_int(os0_t s, size_t l); |
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663 #define os0dup( _s, _l) (void *)os0dup_int((os0_t)(_s), _l) |
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664 |
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665 /* Check that an octet string value can be used as os0_t */ |
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666 static __inline__ int fd_os_is_valid_os0(uint8_t * os, size_t oslen) { |
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667 /* The only situation where it is not valid is when it contains a \0 inside the octet string */ |
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668 return (memchr(os, '\0', oslen) == NULL); |
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669 } |
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670 |
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671 /* The following type denotes a verified DiameterIdentity value (that contains only pure letters, digits, hyphen, dot) */ |
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672 typedef char * DiamId_t; |
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673 |
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674 /* Maximum length of a hostname we accept */ |
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675 #ifndef HOST_NAME_MAX |
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676 #define HOST_NAME_MAX 512 |
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677 #endif /* HOST_NAME_MAX */ |
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678 |
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679 /* Check if a binary string contains a valid Diameter Identity value. |
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680 rfc3588 states explicitely that such a Diameter Identity consists only of ASCII characters. */ |
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681 int fd_os_is_valid_DiameterIdentity(uint8_t * os, size_t ossz); |
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682 |
717
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683 /* The following function validates a string as a Diameter Identity or applies the IDNA transformation on it |
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684 if *inoutsz is != 0 on entry, *id may not be \0-terminated. |
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685 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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686 */ |
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687 int fd_os_validate_DiameterIdentity(char ** id, size_t * inoutsz, int memory); |
706
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688 |
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689 /* Create an order relationship for binary strings (not needed to be \0 terminated). |
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690 It does NOT mimic strings relationships so that it is more efficient. It is case sensitive. |
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691 (the strings are actually first ordered by their lengh, then by their bytes contents) |
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692 returns: -1 if os1 < os2; +1 if os1 > os2; 0 if they are equal */ |
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693 int fd_os_cmp_int(os0_t os1, size_t os1sz, os0_t os2, size_t os2sz); |
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694 #define fd_os_cmp(_o1, _l1, _o2, _l2) fd_os_cmp_int((os0_t)(_o1), _l1, (os0_t)(_o2), _l2) |
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695 |
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696 /* A roughly case-insensitive variant, which actually only compares ASCII chars (0-127) in a case-insentitive maneer |
738
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697 -- it does not support locales where a lowercase letter uses more space than upper case, such as ? -> ss |
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698 It is slower than fd_os_cmp. |
706
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699 Note that the result is NOT the same as strcasecmp !!! |
738
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700 |
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701 This function gives the same order as fd_os_cmp, except when it finds 2 strings to be equal. |
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702 However this is not always sufficient: |
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703 for example fd_os_cmp gives: "Ac" < "aB" < "aa" |
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704 if you attempt to fd_os_almostcasesrch "Aa" you will actually have to go past "aB" which is > "Aa". |
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705 Therefore you can use the maybefurther parameter. |
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706 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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707 and 0 if we are sure that it is not the case. |
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708 When looping through a list of fd_os_cmp classified values, this parameter must be used to stop looping, in addition to the comp result. |
706
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709 */ |
738
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710 int fd_os_almostcasesrch_int(uint8_t * os1, size_t os1sz, uint8_t * os2, size_t os2sz, int * maybefurther); |
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711 #define fd_os_almostcasesrch(_o1, _l1, _o2, _l2, _mb) fd_os_almostcasesrch_int((os0_t)(_o1), _l1, (os0_t)(_o2), _l2, _mb) |
0 | 712 |
717
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713 /* Analyze a DiameterURI and return its components. |
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714 Return EINVAL if the URI is not valid. |
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715 *diamid is malloc'd on function return and must be freed (it is processed by fd_os_validate_DiameterIdentity). |
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716 *secure is 0 (no security) or 1 (security enabled) on return. |
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717 *port is 0 (default) or a value in host byte order on return. |
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718 *transport is 0 (default) or IPPROTO_* on return. |
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719 *proto is 0 (default) or 'd' (diameter), 'r' (radius), or 't' (tacacs+) on return. |
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720 */ |
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721 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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722 |
0 | 723 /*============================================================*/ |
724 /* THREADS */ | |
725 /*============================================================*/ | |
726 | |
727 /* Terminate a thread */ | |
728 static __inline__ int fd_thr_term(pthread_t * th) | |
729 { | |
730 void * th_ret = NULL; | |
731 | |
732 CHECK_PARAMS(th); | |
733 | |
734 /* Test if it was already terminated */ | |
735 if (*th == (pthread_t)NULL) | |
736 return 0; | |
737 | |
738 /* Cancel the thread if it is still running - ignore error if it was already terminated */ | |
739 (void) pthread_cancel(*th); | |
740 | |
741 /* Then join the thread */ | |
183
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Fix compilation error
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742 CHECK_POSIX( pthread_join(*th, &th_ret) ); |
0 | 743 |
181
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744 if (th_ret == PTHREAD_CANCELED) { |
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745 TRACE_DEBUG(ANNOYING, "The thread %p was canceled", *th); |
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746 } else { |
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747 TRACE_DEBUG(CALL, "The thread %p returned %x", *th, th_ret); |
0 | 748 } |
749 | |
750 /* Clean the location */ | |
751 *th = (pthread_t)NULL; | |
752 | |
183
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753 return 0; |
0 | 754 } |
755 | |
454
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756 |
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757 /************* |
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758 Cancelation cleanup handlers for common objects |
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759 *************/ |
0 | 760 static __inline__ void fd_cleanup_mutex( void * mutex ) |
761 { | |
762 CHECK_POSIX_DO( pthread_mutex_unlock((pthread_mutex_t *)mutex), /* */); | |
763 } | |
764 | |
765 static __inline__ void fd_cleanup_rwlock( void * rwlock ) | |
766 { | |
767 CHECK_POSIX_DO( pthread_rwlock_unlock((pthread_rwlock_t *)rwlock), /* */); | |
768 } | |
769 | |
770 static __inline__ void fd_cleanup_buffer( void * buffer ) | |
771 { | |
772 free(buffer); | |
773 } | |
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774 static __inline__ void fd_cleanup_socket(void * sockptr) |
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775 { |
191
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776 if (sockptr && (*(int *)sockptr > 0)) { |
179 | 777 CHECK_SYS_DO( close(*(int *)sockptr), /* ignore */ ); |
184 | 778 *(int *)sockptr = -1; |
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779 } |
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780 } |
0 | 781 |
235
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782 |
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783 /*============================================================*/ |
0 | 784 /* LISTS */ |
785 /*============================================================*/ | |
786 | |
787 /* The following structure represents a chained list element */ | |
788 struct fd_list { | |
789 struct fd_list *next; /* next element in the list */ | |
790 struct fd_list *prev; /* previous element in the list */ | |
791 struct fd_list *head; /* head of the list */ | |
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792 void *o; /* additional pointer, used for any purpose (ex: start of the parent object) */ |
0 | 793 }; |
794 | |
795 /* Initialize a list element */ | |
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796 #define FD_LIST_INITIALIZER( _list_name ) \ |
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797 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = NULL } |
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798 #define FD_LIST_INITIALIZER_O( _list_name, _obj ) \ |
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799 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = _obj } |
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800 void fd_list_init ( struct fd_list * list, void * obj ); |
0 | 801 |
802 /* Return boolean, true if the list is empty */ | |
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803 #define FD_IS_LIST_EMPTY( _list ) ((((struct fd_list *)(_list))->head == (_list)) && (((struct fd_list *)(_list))->next == (_list))) |
0 | 804 |
805 /* Insert an item in a list at known position */ | |
806 void fd_list_insert_after ( struct fd_list * ref, struct fd_list * item ); | |
807 void fd_list_insert_before ( struct fd_list * ref, struct fd_list * item ); | |
808 | |
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809 /* Move all elements from a list at the end of another */ |
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810 void fd_list_move_end(struct fd_list * ref, struct fd_list * senti); |
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811 |
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812 /* 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 | 813 int fd_list_insert_ordered( struct fd_list * head, struct fd_list * item, int (*cmp_fct)(void *, void *), void ** ref_duplicate); |
814 | |
815 /* Unlink an item from a list */ | |
816 void fd_list_unlink ( struct fd_list * item ); | |
817 | |
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818 |
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819 |
0 | 820 |
821 /*============================================================*/ | |
822 /* DICTIONARY */ | |
823 /*============================================================*/ | |
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824 |
0 | 825 /* Structure that contains the complete dictionary definitions */ |
826 struct dictionary; | |
827 | |
828 /* Structure that contains a dictionary object */ | |
829 struct dict_object; | |
830 | |
831 /* Types of object in the dictionary. */ | |
832 enum dict_object_type { | |
833 DICT_VENDOR = 1, /* Vendor */ | |
834 DICT_APPLICATION, /* Diameter Application */ | |
835 DICT_TYPE, /* AVP data type */ | |
836 DICT_ENUMVAL, /* Named constant (value of an enumerated AVP type) */ | |
837 DICT_AVP, /* AVP */ | |
838 DICT_COMMAND, /* Diameter Command */ | |
839 DICT_RULE /* a Rule for AVP in command or grouped AVP */ | |
840 #define DICT_TYPE_MAX DICT_RULE | |
841 }; | |
842 | |
843 /* Initialize a dictionary */ | |
844 int fd_dict_init(struct dictionary ** dict); | |
845 /* Destroy a dictionary */ | |
846 int fd_dict_fini(struct dictionary ** dict); | |
847 | |
848 /* | |
849 * FUNCTION: fd_dict_new | |
850 * | |
851 * PARAMETERS: | |
852 * dict : Pointer to the dictionnary where the object is created | |
853 * type : What kind of object must be created | |
854 * data : pointer to the data for the object. | |
855 * type parameter is used to determine the type of data (see bellow for detail). | |
856 * parent : a reference to a parent object, if needed. | |
857 * ref : upon successful creation, reference to new object is stored here if !null. | |
858 * | |
859 * DESCRIPTION: | |
860 * Create a new object in the dictionary. | |
861 * See following object sections in this header file for more information on data and parent parameters format. | |
862 * | |
863 * RETURN VALUE: | |
864 * 0 : The object is created in the dictionary. | |
865 * EINVAL : A parameter is invalid. | |
866 * EEXIST : This object is already defined in the dictionary (with conflicting data). | |
867 * If "ref" is not NULL, it points to the existing element on return. | |
868 * (other standard errors may be returned, too, with their standard meaning. Example: | |
869 * ENOMEM : Memory allocation for the new object element failed.) | |
870 */ | |
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871 int fd_dict_new ( struct dictionary * dict, enum dict_object_type type, void * data, struct dict_object * parent, struct dict_object ** ref ); |
0 | 872 |
873 /* | |
874 * FUNCTION: fd_dict_search | |
875 * | |
876 * PARAMETERS: | |
877 * dict : Pointer to the dictionnary where the object is searched | |
878 * type : type of object that is being searched | |
879 * criteria : how the object must be searched. See object-related sections bellow for more information. | |
880 * what : depending on criteria, the data that must be searched. | |
881 * result : On successful return, pointer to the object is stored here. | |
882 * retval : this value is returned if the object is not found and result is not NULL. | |
883 * | |
884 * DESCRIPTION: | |
885 * Perform a search in the dictionary. | |
886 * See the object-specific sections bellow to find how to look for each objects. | |
887 * If the "result" parameter is NULL, the function is used to check if an object is in the dictionary. | |
888 * Otherwise, a reference to the object is stored in result if found. | |
889 * If result is not NULL and the object is not found, retval is returned (should be 0 or ENOENT usually) | |
890 * | |
891 * RETURN VALUE: | |
892 * 0 : The object has been found in the dictionary, or *result is NULL. | |
893 * EINVAL : A parameter is invalid. | |
894 * ENOENT : No matching object has been found, and result was NULL. | |
895 */ | |
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896 int fd_dict_search ( struct dictionary * dict, enum dict_object_type type, int criteria, const void * what, struct dict_object ** result, int retval ); |
0 | 897 |
898 /* Special case: get the generic error command object */ | |
620
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899 int fd_dict_get_error_cmd(struct dictionary * dict, struct dict_object ** obj); |
0 | 900 |
901 /* | |
902 * FUNCTION: fd_dict_getval | |
903 * | |
904 * PARAMETERS: | |
905 * object : Pointer to a dictionary object. | |
906 * data : pointer to a structure to hold the data for the object. | |
907 * The type is the same as "data" parameter in fd_dict_new function. | |
908 * | |
909 * DESCRIPTION: | |
910 * Retrieve content of a dictionary object. | |
911 * See following object sections in this header file for more information on data and parent parameters format. | |
912 * | |
913 * RETURN VALUE: | |
914 * 0 : The content of the object has been retrieved. | |
915 * EINVAL : A parameter is invalid. | |
916 */ | |
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917 int fd_dict_getval ( struct dict_object * object, void * val); |
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918 int fd_dict_gettype ( struct dict_object * object, enum dict_object_type * type); |
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919 int fd_dict_getdict ( struct dict_object * object, struct dictionary ** dict); |
0 | 920 |
921 /* Debug functions */ | |
922 void fd_dict_dump_object(struct dict_object * obj); | |
923 void fd_dict_dump(struct dictionary * dict); | |
924 | |
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925 /* Function to access full contents of the dictionary, see doc in dictionary.c */ |
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926 int fd_dict_getlistof(int criteria, void * parent, struct fd_list ** sentinel); |
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927 |
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928 /* Function to remove an entry from the dictionary. |
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929 This cannot be used if the object has children (for example a vendor with vendor-specific AVPs). |
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930 In such case, the children must be removed first. */ |
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931 int fd_dict_delete(struct dict_object * obj); |
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932 |
0 | 933 /* |
934 *************************************************************************** | |
935 * | |
936 * Vendor object | |
937 * | |
938 * These types are used to manage vendors in the dictionary | |
939 * | |
940 *************************************************************************** | |
941 */ | |
942 | |
943 /* Type to hold a Vendor ID: "SMI Network Management Private Enterprise Codes" (RFC3232) */ | |
944 typedef uint32_t vendor_id_t; | |
945 | |
946 /* Type to hold data associated to a vendor */ | |
947 struct dict_vendor_data { | |
948 vendor_id_t vendor_id; /* ID of a vendor */ | |
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949 char * vendor_name; /* The name of this vendor */ |
0 | 950 }; |
951 | |
952 /* The criteria for searching a vendor object in the dictionary */ | |
953 enum { | |
954 VENDOR_BY_ID = 10, /* "what" points to a vendor_id_t */ | |
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955 VENDOR_BY_NAME, /* "what" points to a char * */ |
0 | 956 VENDOR_OF_APPLICATION /* "what" points to a struct dict_object containing an application (see bellow) */ |
957 }; | |
958 | |
959 /*** | |
960 * API usage : | |
961 | |
962 Note: the value of "vendor_name" is copied when the object is created, and the string may be disposed afterwards. | |
963 On the other side, when value is retrieved with dict_getval, the string is not copied and MUST NOT be freed. It will | |
964 be freed automatically along with the object itself with call to dict_fini later. | |
965 | |
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966 - fd_dict_new: |
0 | 967 The "parent" parameter is not used for vendors. |
968 Sample code to create a vendor: | |
969 { | |
970 int ret; | |
971 struct dict_object * myvendor; | |
972 struct dict_vendor_data myvendordata = { 23455, "my vendor name" }; -- just an example... | |
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973 ret = fd_dict_new ( dict, DICT_VENDOR, &myvendordata, NULL, &myvendor ); |
0 | 974 } |
975 | |
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976 - fd_dict_search: |
0 | 977 Sample codes to look for a vendor object, by its id or name: |
978 { | |
979 int ret; | |
980 struct dict_object * vendor_found; | |
981 vendor_id_t vendorid = 23455; | |
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982 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_ID, &vendorid, &vendor_found, ENOENT); |
0 | 983 - or - |
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984 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &vendor_found, ENOENT); |
0 | 985 } |
986 | |
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987 - fd_dict_getval: |
0 | 988 Sample code to retrieve the data from a vendor object: |
989 { | |
990 int ret; | |
991 struct dict_object * myvendor; | |
992 struct dict_vendor_data myvendordata; | |
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993 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &myvendor, ENOENT); |
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994 ret = fd_dict_getval ( myvendor, &myvendordata ); |
0 | 995 printf("my vendor id: %d\n", myvendordata.vendor_id ); |
996 } | |
997 | |
998 */ | |
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999 |
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1000 /* Special function: */ |
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1001 uint32_t * fd_dict_get_vendorid_list(struct dictionary * dict); |
0 | 1002 |
1003 /* | |
1004 *************************************************************************** | |
1005 * | |
1006 * Application object | |
1007 * | |
1008 * These types are used to manage Diameter applications in the dictionary | |
1009 * | |
1010 *************************************************************************** | |
1011 */ | |
1012 | |
1013 /* Type to hold a Diameter application ID: IANA assigned value for this application. */ | |
1014 typedef uint32_t application_id_t; | |
1015 | |
1016 /* Type to hold data associated to an application */ | |
1017 struct dict_application_data { | |
1018 application_id_t application_id; /* ID of the application */ | |
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1019 char * application_name; /* The name of this application */ |
0 | 1020 }; |
1021 | |
1022 /* The criteria for searching an application object in the dictionary */ | |
1023 enum { | |
1024 APPLICATION_BY_ID = 20, /* "what" points to a application_id_t */ | |
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1025 APPLICATION_BY_NAME, /* "what" points to a char * */ |
0 | 1026 APPLICATION_OF_TYPE, /* "what" points to a struct dict_object containing a type object (see bellow) */ |
1027 APPLICATION_OF_COMMAND /* "what" points to a struct dict_object containing a command (see bellow) */ | |
1028 }; | |
1029 | |
1030 /*** | |
1031 * API usage : | |
1032 | |
1033 The "parent" parameter of dict_new may point to a vendor object to inform of what vendor defines the application. | |
1034 for standard-track applications, the "parent" parameter should be NULL. | |
1035 The vendor associated to an application is retrieved with VENDOR_OF_APPLICATION search criteria on vendors. | |
1036 | |
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1037 - fd_dict_new: |
0 | 1038 Sample code for application creation: |
1039 { | |
1040 int ret; | |
1041 struct dict_object * vendor; | |
1042 struct dict_object * appl; | |
1043 struct dict_vendor_data vendor_data = { | |
1044 23455, | |
1045 "my vendor name" | |
1046 }; | |
1047 struct dict_application_data app_data = { | |
1048 9789, | |
1049 "my vendor's application" | |
1050 }; | |
1051 | |
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1052 ret = fd_dict_new ( dict, DICT_VENDOR, &vendor_data, NULL, &vendor ); |
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1053 ret = fd_dict_new ( dict, DICT_APPLICATION, &app_data, vendor, &appl ); |
0 | 1054 } |
1055 | |
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1056 - fd_dict_search: |
0 | 1057 Sample code to retrieve the vendor of an application |
1058 { | |
1059 int ret; | |
1060 struct dict_object * vendor, * appli; | |
1061 | |
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1062 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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1063 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_OF_APPLICATION, appli, &vendor, ENOENT); |
0 | 1064 } |
1065 | |
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1066 - fd_dict_getval: |
0 | 1067 Sample code to retrieve the data from an application object: |
1068 { | |
1069 int ret; | |
1070 struct dict_object * appli; | |
1071 struct dict_application_data appl_data; | |
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1072 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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1073 ret = fd_dict_getval ( appli, &appl_data ); |
0 | 1074 printf("my application id: %s\n", appl_data.application_id ); |
1075 } | |
1076 | |
1077 */ | |
1078 | |
1079 /* | |
1080 *************************************************************************** | |
1081 * | |
1082 * Type object | |
1083 * | |
1084 * These types are used to manage AVP data types in the dictionary | |
1085 * | |
1086 *************************************************************************** | |
1087 */ | |
1088 | |
1089 /* Type to store any AVP value */ | |
1090 union avp_value { | |
1091 struct { | |
1092 uint8_t *data; /* bytes buffer */ | |
1093 size_t len; /* length of the data buffer */ | |
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1094 } os; /* Storage for an octet string */ |
0 | 1095 int32_t i32; /* integer 32 */ |
1096 int64_t i64; /* integer 64 */ | |
1097 uint32_t u32; /* unsigned 32 */ | |
1098 uint64_t u64; /* unsigned 64 */ | |
1099 float f32; /* float 32 */ | |
1100 double f64; /* float 64 */ | |
1101 }; | |
1102 | |
1103 /* These are the basic AVP types defined in RFC3588bis */ | |
1104 enum dict_avp_basetype { | |
1105 AVP_TYPE_GROUPED, | |
1106 AVP_TYPE_OCTETSTRING, | |
1107 AVP_TYPE_INTEGER32, | |
1108 AVP_TYPE_INTEGER64, | |
1109 AVP_TYPE_UNSIGNED32, | |
1110 AVP_TYPE_UNSIGNED64, | |
1111 AVP_TYPE_FLOAT32, | |
1112 AVP_TYPE_FLOAT64 | |
1113 #define AVP_TYPE_MAX AVP_TYPE_FLOAT64 | |
1114 }; | |
1115 | |
1116 /* Callbacks that can be associated with a derived type to easily interpret the AVP value. */ | |
1117 /* | |
1118 * CALLBACK: dict_avpdata_interpret | |
1119 * | |
1120 * PARAMETERS: | |
1121 * val : Pointer to the AVP value that must be interpreted. | |
1122 * interpreted : The result of interpretation is stored here. The format and meaning depends on each type. | |
1123 * | |
1124 * DESCRIPTION: | |
1125 * This callback can be provided with a derived type in order to facilitate the interpretation of formated data. | |
1126 * For example, when an AVP of type "Address" is received, it can be used to convert the octetstring into a struct sockaddr. | |
1127 * This callback is not called directly, but through the message's API msg_avp_value_interpret function. | |
1128 * | |
1129 * RETURN VALUE: | |
1130 * 0 : Operation complete. | |
1131 * !0 : An error occurred, the error code is returned. | |
1132 */ | |
1133 typedef int (*dict_avpdata_interpret) (union avp_value * value, void * interpreted); | |
1134 /* | |
1135 * CALLBACK: dict_avpdata_encode | |
1136 * | |
1137 * PARAMETERS: | |
1138 * data : The formated data that must be stored in the AVP value. | |
1139 * val : Pointer to the AVP value storage area where the data must be stored. | |
1140 * | |
1141 * DESCRIPTION: | |
1142 * This callback can be provided with a derived type in order to facilitate the encoding of formated data. | |
1143 * For example, it can be used to convert a struct sockaddr in an AVP value of type Address. | |
1144 * This callback is not called directly, but through the message's API msg_avp_value_encode function. | |
1145 * If the callback is defined for an OctetString based type, the created string must be malloc'd. free will be called | |
1146 * automatically later. | |
1147 * | |
1148 * RETURN VALUE: | |
1149 * 0 : Operation complete. | |
1150 * !0 : An error occurred, the error code is returned. | |
1151 */ | |
1152 typedef int (*dict_avpdata_encode) (void * data, union avp_value * val); | |
1153 | |
1154 | |
1155 /* Type to hold data associated to a derived AVP data type */ | |
1156 struct dict_type_data { | |
1157 enum dict_avp_basetype type_base; /* How the data of such AVP must be interpreted */ | |
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1158 char * type_name; /* The name of this type */ |
0 | 1159 dict_avpdata_interpret type_interpret;/* cb to convert the AVP value in more comprehensive format (or NULL) */ |
1160 dict_avpdata_encode type_encode; /* cb to convert formatted data into an AVP value (or NULL) */ | |
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1161 char * (*type_dump)(union avp_value * val); /* cb called by fd_msg_dump_one for this type of data (if != NULL). Returned string must be freed. */ |
0 | 1162 }; |
1163 | |
1164 /* The criteria for searching a type object in the dictionary */ | |
1165 enum { | |
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1166 TYPE_BY_NAME = 30, /* "what" points to a char * */ |
0 | 1167 TYPE_OF_ENUMVAL, /* "what" points to a struct dict_object containing an enumerated constant (DICT_ENUMVAL, see bellow). */ |
1168 TYPE_OF_AVP /* "what" points to a struct dict_object containing an AVP object. */ | |
1169 }; | |
1170 | |
1171 | |
1172 /*** | |
1173 * API usage : | |
1174 | |
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1175 - fd_dict_new: |
0 | 1176 The "parent" parameter may point to an application object, when a type is defined by a Diameter application. |
1177 | |
1178 Sample code: | |
1179 { | |
1180 int ret; | |
1181 struct dict_object * mytype; | |
1182 struct dict_type_data mytypedata = | |
1183 { | |
1184 AVP_TYPE_OCTETSTRING, | |
1185 "Address", | |
1186 NULL, | |
1187 NULL | |
1188 }; | |
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1189 ret = fd_dict_new ( dict, DICT_TYPE, &mytypedata, NULL, &mytype ); |
0 | 1190 } |
1191 | |
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1192 - fd_dict_search: |
0 | 1193 Sample code: |
1194 { | |
1195 int ret; | |
1196 struct dict_object * address_type; | |
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1197 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Address", &address_type, ENOENT); |
0 | 1198 } |
1199 | |
1200 */ | |
1201 | |
1202 /* | |
1203 *************************************************************************** | |
1204 * | |
1205 * Enumerated values object | |
1206 * | |
1207 * These types are used to manage named constants of some AVP, | |
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1208 * for enumerated types. freeDiameter allows constants for types others than Unsigned32 |
0 | 1209 * |
1210 *************************************************************************** | |
1211 */ | |
1212 | |
1213 /* Type to hold data of named constants for AVP */ | |
1214 struct dict_enumval_data { | |
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1215 char * enum_name; /* The name of this constant */ |
0 | 1216 union avp_value enum_value; /* Value of the constant. Union term depends on parent type's base type. */ |
1217 }; | |
1218 | |
1219 /* The criteria for searching a constant in the dictionary */ | |
1220 enum { | |
1221 ENUMVAL_BY_STRUCT = 40, /* "what" points to a struct dict_enumval_request as defined bellow */ | |
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1222 ENUMVAL_BY_NAME, /* This cannot be used for researches */ |
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1223 ENUMVAL_BY_VALUE /* This cannot be used for researches */ |
0 | 1224 }; |
1225 | |
1226 struct dict_enumval_request { | |
1227 /* Identifier of the parent type, one of the following must not be NULL */ | |
1228 struct dict_object *type_obj; | |
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1229 char * type_name; |
0 | 1230 |
1231 /* Search criteria for the constant */ | |
1232 struct dict_enumval_data search; /* search.enum_value is used only if search.enum_name == NULL */ | |
1233 }; | |
1234 | |
1235 /*** | |
1236 * API usage : | |
1237 | |
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1238 - fd_dict_new: |
0 | 1239 The "parent" parameter must point to a derived type object. |
1240 Sample code to create a type "Boolean" with two constants "True" and "False": | |
1241 { | |
1242 int ret; | |
1243 struct dict_object * type_boolean; | |
1244 struct dict_type_data type_boolean_data = | |
1245 { | |
1246 AVP_TYPE_INTEGER32, | |
1247 "Boolean", | |
1248 NULL, | |
1249 NULL | |
1250 }; | |
1251 struct dict_enumval_data boolean_false = | |
1252 { | |
1253 .enum_name="False", | |
1254 .enum_value.i32 = 0 | |
1255 }; | |
1256 struct dict_enumval_data boolean_true = | |
1257 { | |
1258 .enum_name="True", | |
1259 .enum_value.i32 = -1 | |
1260 }; | |
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1261 ret = fd_dict_new ( dict, DICT_TYPE, &type_boolean_data, NULL, &type_boolean ); |
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1262 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_false, type_boolean, NULL ); |
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1263 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_true , type_boolean, NULL ); |
0 | 1264 |
1265 } | |
1266 | |
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1267 - fd_dict_search: |
0 | 1268 Sample code to look for a constant name, by its value: |
1269 { | |
1270 int ret; | |
1271 struct dict_object * value_found; | |
1272 struct dict_enumval_request boolean_by_value = | |
1273 { | |
1274 .type_name = "Boolean", | |
1275 .search.enum_name=NULL, | |
1276 .search.enum_value.i32 = -1 | |
1277 }; | |
1278 | |
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1279 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
0 | 1280 } |
1281 | |
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1282 - fd_dict_getval: |
0 | 1283 Sample code to retrieve the data from a constant object: |
1284 { | |
1285 int ret; | |
1286 struct dict_object * value_found; | |
1287 struct dict_enumval_data boolean_data = NULL; | |
1288 struct dict_enumval_request boolean_by_value = | |
1289 { | |
1290 .type_name = "Boolean", | |
1291 .search.enum_name=NULL, | |
1292 .search.enum_value.i32 = 0 | |
1293 }; | |
1294 | |
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1295 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
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1296 ret = fd_dict_getval ( value_found, &boolean_data ); |
0 | 1297 printf(" Boolean with value 0: %s", boolean_data.enum_name ); |
1298 } | |
1299 */ | |
1300 | |
1301 /* | |
1302 *************************************************************************** | |
1303 * | |
1304 * AVP object | |
1305 * | |
1306 * These objects are used to manage AVP definitions in the dictionary | |
1307 * | |
1308 *************************************************************************** | |
1309 */ | |
1310 | |
1311 /* Type to hold an AVP code. For vendor 0, these codes are assigned by IANA. Otherwise, it is managed by the vendor */ | |
1312 typedef uint32_t avp_code_t; | |
1313 | |
1314 /* Values of AVP flags */ | |
1315 #define AVP_FLAG_VENDOR 0x80 | |
1316 #define AVP_FLAG_MANDATORY 0x40 | |
1317 #define AVP_FLAG_RESERVED3 0x20 | |
1318 #define AVP_FLAG_RESERVED4 0x10 | |
1319 #define AVP_FLAG_RESERVED5 0x08 | |
1320 #define AVP_FLAG_RESERVED6 0x04 | |
1321 #define AVP_FLAG_RESERVED7 0x02 | |
1322 #define AVP_FLAG_RESERVED8 0x01 | |
1323 | |
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1324 /* For dumping flags and values */ |
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1325 #define DUMP_AVPFL_str "%c%c" |
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1326 #define DUMP_AVPFL_val(_val) (_val & AVP_FLAG_VENDOR)?'V':'-' , (_val & AVP_FLAG_MANDATORY)?'M':'-' |
0 | 1327 |
1328 /* Type to hold data associated to an avp */ | |
1329 struct dict_avp_data { | |
1330 avp_code_t avp_code; /* Code of the avp */ | |
1331 vendor_id_t avp_vendor; /* Vendor of the AVP, or 0 */ | |
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1332 char * avp_name; /* Name of this AVP */ |
0 | 1333 uint8_t avp_flag_mask; /* Mask of fixed AVP flags */ |
1334 uint8_t avp_flag_val; /* Values of the fixed flags */ | |
1335 enum dict_avp_basetype avp_basetype; /* Basic type of data found in the AVP */ | |
1336 }; | |
1337 | |
1338 /* The criteria for searching an avp object in the dictionary */ | |
1339 enum { | |
1340 AVP_BY_CODE = 50, /* "what" points to an avp_code_t, vendor is always 0 */ | |
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1341 AVP_BY_NAME, /* "what" points to a char *, vendor is always 0 */ |
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1342 AVP_BY_NAME_ALL_VENDORS,/* "what" points to a string. Might be quite slow... */ |
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1343 AVP_BY_STRUCT, /* "what" points to a struct dict_avp_request_ex (see bellow) */ |
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1344 |
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1345 /* kept for backward compatibility, better use AVP_BY_STRUCT above instead */ |
0 | 1346 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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1347 AVP_BY_NAME_AND_VENDOR /* "what" points to a struct dict_avp_request (see bellow), where avp_vendor and avp_name are set */ |
0 | 1348 }; |
1349 | |
1350 /* Struct used for some researchs */ | |
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1351 struct dict_avp_request_ex { |
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1352 struct { |
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1353 /* Only one of the following fields must be set. */ |
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1354 struct dict_object * vendor; /* most efficient if already known, set to NULL to ignore */ |
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1355 vendor_id_t vendor_id; /* set to 0 to ignore -- prefer AVP_BY_CODE or AVP_BY_NAME for vendor 0 */ |
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1356 const char * vendor_name; /* set to NULL to ignore */ |
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1357 } avp_vendor; |
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1358 |
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1359 struct { |
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1360 /* Only one of the following fields must be set */ |
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1361 avp_code_t avp_code; /* set to 0 to ignore */ |
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1362 const char * avp_name; /* set to NULL to ignore */ |
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1363 } avp_data; |
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1364 }; |
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1365 |
0 | 1366 struct dict_avp_request { |
1367 vendor_id_t avp_vendor; | |
1368 avp_code_t avp_code; | |
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1369 char * avp_name; |
0 | 1370 }; |
1371 | |
1372 | |
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1373 |
0 | 1374 /*** |
1375 * API usage : | |
1376 | |
1377 If "parent" parameter is not NULL during AVP creation, it must point to a DICT_TYPE object. | |
1378 The extended type is then attached to the AVP. In case where it is an enumerated type, the value of | |
1379 AVP is automatically interpreted in debug messages, and in message checks. | |
1380 The derived type of an AVP can be retrieved with: dict_search ( DICT_TYPE, TYPE_OF_AVP, avp, ... ) | |
1381 | |
1382 To create the rules (ABNF) for children of Grouped AVP, see the DICT_RULE related part. | |
1383 | |
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1384 - fd_dict_new: |
0 | 1385 Sample code for AVP creation: |
1386 { | |
1387 int ret; | |
1388 struct dict_object * user_name_avp; | |
1389 struct dict_object * boolean_type; | |
1390 struct dict_object * sample_boolean_avp; | |
1391 struct dict_avp_data user_name_data = { | |
1392 1, // code | |
1393 0, // vendor | |
1394 "User-Name", // name | |
1395 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 | |
1396 AVP_FLAG_MANDATORY, // the V flag must be cleared, the M flag must be set. | |
1397 AVP_TYPE_OCTETSTRING // User-Name AVP contains OctetString data (further precision such as UTF8String can be given with a parent derived type) | |
1398 }; | |
1399 struct dict_avp_data sample_boolean_data = { | |
1400 31337, | |
1401 23455, | |
1402 "Sample-Boolean", | |
1403 AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, | |
1404 AVP_FLAG_VENDOR, | |
1405 AVP_TYPE_INTEGER32 // This MUST be the same as parent type's | |
1406 }; | |
1407 | |
1408 -- Create an AVP with a base type -- | |
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1409 ret = fd_dict_new ( dict, DICT_AVP, &user_name_data, NULL, &user_name_avp ); |
0 | 1410 |
1411 -- Create an AVP with a derived type -- | |
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1412 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Boolean", &boolean_type, ENOENT); |
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1413 ret = fd_dict_new ( dict, DICT_AVP, &sample_boolean_data , boolean_type, &sample_boolean_avp ); |
0 | 1414 |
1415 } | |
1416 | |
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1417 - fd_dict_search: |
0 | 1418 Sample code to look for an AVP |
1419 { | |
1420 int ret; | |
1421 struct dict_object * avp_username; | |
1422 struct dict_object * avp_sampleboolean; | |
1423 struct dict_avp_request avpvendorboolean = | |
1424 { | |
1425 .avp_vendor = 23455, | |
1426 .avp_name = "Sample-Boolean" | |
1427 }; | |
1428 | |
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1429 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
0 | 1430 |
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1431 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME_AND_VENDOR, &avpvendorboolean, &avp_sampleboolean, ENOENT); |
0 | 1432 |
1433 } | |
1434 | |
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1435 - fd_dict_getval: |
0 | 1436 Sample code to retrieve the data from an AVP object: |
1437 { | |
1438 int ret; | |
1439 struct dict_object * avp_username; | |
1440 struct dict_avp_data user_name_data; | |
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1441 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
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1442 ret = fd_dict_getval ( avp_username, &user_name_data ); |
0 | 1443 printf("User-Name code: %d\n", user_name_data.avp_code ); |
1444 } | |
1445 | |
1446 */ | |
1447 | |
1448 /* | |
1449 *************************************************************************** | |
1450 * | |
1451 * Command object | |
1452 * | |
1453 * These types are used to manage commands objects in the dictionary | |
1454 * | |
1455 *************************************************************************** | |
1456 */ | |
1457 | |
1458 /* Type to hold a Diameter command code: IANA assigned values. 0x0-0x7fffff=standard, 0x800000-0xfffffd=vendors, 0xfffffe-0xffffff=experimental */ | |
1459 typedef uint32_t command_code_t; | |
1460 | |
1461 /* Values of command flags */ | |
1462 #define CMD_FLAG_REQUEST 0x80 | |
1463 #define CMD_FLAG_PROXIABLE 0x40 | |
1464 #define CMD_FLAG_ERROR 0x20 | |
1465 #define CMD_FLAG_RETRANSMIT 0x10 | |
1466 #define CMD_FLAG_RESERVED5 0x08 | |
1467 #define CMD_FLAG_RESERVED6 0x04 | |
1468 #define CMD_FLAG_RESERVED7 0x02 | |
1469 #define CMD_FLAG_RESERVED8 0x01 | |
1470 | |
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1471 /* For dumping flags and values */ |
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1472 #define DUMP_CMDFL_str "%c%c%c%c" |
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1473 #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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1474 |
0 | 1475 /* Type to hold data associated to a command */ |
1476 struct dict_cmd_data { | |
1477 command_code_t cmd_code; /* code of the command */ | |
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1478 char * cmd_name; /* Name of the command */ |
0 | 1479 uint8_t cmd_flag_mask; /* Mask of fixed-value flags */ |
1480 uint8_t cmd_flag_val; /* values of the fixed flags */ | |
1481 }; | |
1482 | |
1483 /* The criteria for searching an avp object in the dictionary */ | |
1484 enum { | |
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1485 CMD_BY_NAME = 60, /* "what" points to a char * */ |
0 | 1486 CMD_BY_CODE_R, /* "what" points to a command_code_t. The "Request" command is returned. */ |
1487 CMD_BY_CODE_A, /* "what" points to a command_code_t. The "Answer" command is returned. */ | |
1488 CMD_ANSWER /* "what" points to a struct dict_object of a request command. The corresponding "Answer" command is returned. */ | |
1489 }; | |
1490 | |
1491 | |
1492 /*** | |
1493 * API usage : | |
1494 | |
1495 The "parent" parameter of dict_new may point to an application object to inform of what application defines the command. | |
1496 The application associated to a command is retrieved with APPLICATION_OF_COMMAND search criteria on applications. | |
1497 | |
1498 To create the rules for children of commands, see the DICT_RULE related part. | |
1499 | |
1500 Note that the "Request" and "Answer" commands are two independant objects. This allows to have different rules for each. | |
1501 | |
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1502 - fd_dict_new: |
0 | 1503 Sample code for command creation: |
1504 { | |
1505 int ret; | |
1506 struct dict_object * cer; | |
1507 struct dict_object * cea; | |
1508 struct dict_cmd_data ce_data = { | |
1509 257, // code | |
1510 "Capabilities-Exchange-Request", // name | |
1511 CMD_FLAG_REQUEST, // mask | |
1512 CMD_FLAG_REQUEST // value. Only the "R" flag is constrained here, set. | |
1513 }; | |
1514 | |
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1515 ret = fd_dict_new (dict, DICT_COMMAND, &ce_data, NULL, &cer ); |
0 | 1516 |
1517 ce_data.cmd_name = "Capabilities-Exchange-Answer"; | |
1518 ce_data.cmd_flag_val = 0; // Same constraint on "R" flag, but this time it must be cleared. | |
1519 | |
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1520 ret = fd_dict_new ( dict, DICT_COMMAND, &ce_data, NULL, &cea ); |
0 | 1521 } |
1522 | |
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1523 - fd_dict_search: |
0 | 1524 Sample code to look for a command |
1525 { | |
1526 int ret; | |
1527 struct dict_object * cer, * cea; | |
1528 command_code_t code = 257; | |
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1529 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1530 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_CODE_R, &code, &cer, ENOENT); |
0 | 1531 } |
1532 | |
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1533 - fd_dict_getval: |
0 | 1534 Sample code to retrieve the data from a command object: |
1535 { | |
1536 int ret; | |
1537 struct dict_object * cer; | |
1538 struct dict_object * cea; | |
1539 struct dict_cmd_data cea_data; | |
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1540 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1541 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_ANSWER, cer, &cea, ENOENT); |
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1542 ret = fd_dict_getval ( cea, &cea_data ); |
0 | 1543 printf("Answer to CER: %s\n", cea_data.cmd_name ); |
1544 } | |
1545 | |
1546 */ | |
1547 | |
1548 /* | |
1549 *************************************************************************** | |
1550 * | |
1551 * Rule object | |
1552 * | |
1553 * These objects are used to manage rules in the dictionary (ABNF implementation) | |
1554 * This is used for checking messages validity (more powerful than a DTD) | |
1555 * | |
1556 *************************************************************************** | |
1557 */ | |
1558 | |
1559 /* This defines the kind of rule that is defined */ | |
1560 enum rule_position { | |
1561 RULE_FIXED_HEAD = 1, /* The AVP must be at the head of the group. The rule_order field is used to specify the position. */ | |
1562 RULE_REQUIRED, /* The AVP must be present in the parent, but its position is not defined. */ | |
1563 RULE_OPTIONAL, /* The AVP may be present in the message. Used to specify a max number of occurences for example */ | |
1564 RULE_FIXED_TAIL /* The AVP must be at the end of the group. The rule_order field is used to specify the position. */ | |
1565 }; | |
1566 | |
1567 /* Content of a RULE object data */ | |
1568 struct dict_rule_data { | |
1569 struct dict_object *rule_avp; /* Pointer to the AVP object that is concerned by this rule */ | |
1570 enum rule_position rule_position; /* The position in which the rule_avp must appear in the parent */ | |
1571 unsigned rule_order; /* for RULE_FIXED_* rules, the place. 1,2,3.. for HEAD rules; ...,3,2,1 for TAIL rules. */ | |
1572 int rule_min; /* Minimum number of occurences. -1 means "default": 0 for optional rules, 1 for other rules */ | |
1573 int rule_max; /* Maximum number of occurences. -1 means no maximum. 0 means the AVP is forbidden. */ | |
1574 }; | |
1575 | |
1576 /* The criteria for searching a rule in the dictionary */ | |
1577 enum { | |
1578 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?" */ | |
1579 }; | |
1580 | |
1581 /* Structure for querying the dictionary about a rule */ | |
1582 struct dict_rule_request { | |
1583 struct dict_object *rule_parent; /* The grouped avp or command to which the rule apply */ | |
1584 struct dict_object *rule_avp; /* The AVP concerned by this rule */ | |
1585 }; | |
1586 | |
1587 | |
1588 /*** | |
1589 * API usage : | |
1590 | |
1591 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). | |
1592 | |
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1593 - fd_dict_new: |
0 | 1594 Sample code for rule creation. Let's create the Proxy-Info grouped AVP for example. |
1595 { | |
1596 int ret; | |
1597 struct dict_object * proxy_info_avp; | |
1598 struct dict_object * proxy_host_avp; | |
1599 struct dict_object * proxy_state_avp; | |
1600 struct dict_object * diameteridentity_type; | |
1601 struct dict_rule_data rule_data; | |
1602 struct dict_type_data di_type_data = { AVP_TYPE_OCTETSTRING, "DiameterIdentity", NULL, NULL }; | |
1603 struct dict_avp_data proxy_info_data = { 284, 0, "Proxy-Info", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_GROUPED }; | |
1604 struct dict_avp_data proxy_host_data = { 280, 0, "Proxy-Host", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
1605 struct dict_avp_data proxy_state_data = { 33, 0, "Proxy-State",AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
1606 | |
1607 -- Create the parent AVP | |
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1608 ret = fd_dict_new ( dict, DICT_AVP, &proxy_info_data, NULL, &proxy_info_avp ); |
0 | 1609 |
1610 -- Create the first child AVP. | |
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1611 ret = fd_dict_new ( dict, DICT_TYPE, &di_type_data, NULL, &diameteridentity_type ); |
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1612 ret = fd_dict_new ( dict, DICT_AVP, &proxy_host_data, diameteridentity_type, &proxy_host_avp ); |
0 | 1613 |
1614 -- Create the other child AVP | |
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1615 ret = fd_dict_new ( dict, DICT_AVP, &proxy_state_data, NULL, &proxy_state_avp ); |
0 | 1616 |
1617 -- Now we can create the rules. Both children AVP are mandatory. | |
1618 rule_data.rule_position = RULE_REQUIRED; | |
1619 rule_data.rule_min = -1; | |
1620 rule_data.rule_max = -1; | |
1621 | |
1622 rule_data.rule_avp = proxy_host_avp; | |
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1623 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
0 | 1624 |
1625 rule_data.rule_avp = proxy_state_avp; | |
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1626 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
0 | 1627 } |
1628 | |
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1629 - fd_dict_search and fd_dict_getval are similar to previous examples. |
0 | 1630 |
1631 */ | |
1632 | |
1633 /* Define some hard-coded values */ | |
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1634 /* Application */ |
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1635 #define AI_RELAY 0xffffffff |
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1636 |
0 | 1637 /* Commands Codes */ |
1638 #define CC_CAPABILITIES_EXCHANGE 257 | |
1639 #define CC_RE_AUTH 258 | |
1640 #define CC_ACCOUNTING 271 | |
1641 #define CC_ABORT_SESSION 274 | |
1642 #define CC_SESSION_TERMINATION 275 | |
1643 #define CC_DEVICE_WATCHDOG 280 | |
1644 #define CC_DISCONNECT_PEER 282 | |
1645 | |
1646 /* AVPs (Vendor 0) */ | |
87 | 1647 #define AC_USER_NAME 1 |
0 | 1648 #define AC_PROXY_STATE 33 |
1649 #define AC_HOST_IP_ADDRESS 257 | |
1650 #define AC_AUTH_APPLICATION_ID 258 | |
1651 #define AC_ACCT_APPLICATION_ID 259 | |
1652 #define AC_VENDOR_SPECIFIC_APPLICATION_ID 260 | |
1653 #define AC_REDIRECT_HOST_USAGE 261 | |
1654 #define AC_REDIRECT_MAX_CACHE_TIME 262 | |
1655 #define AC_SESSION_ID 263 | |
1656 #define AC_ORIGIN_HOST 264 | |
1657 #define AC_SUPPORTED_VENDOR_ID 265 | |
1658 #define AC_VENDOR_ID 266 | |
1659 #define AC_FIRMWARE_REVISION 267 | |
1660 #define AC_RESULT_CODE 268 | |
1661 #define AC_PRODUCT_NAME 269 | |
1662 #define AC_DISCONNECT_CAUSE 273 | |
1663 #define ACV_DC_REBOOTING 0 | |
1664 #define ACV_DC_BUSY 1 | |
1665 #define ACV_DC_NOT_FRIEND 2 | |
1666 #define AC_ORIGIN_STATE_ID 278 | |
1667 #define AC_FAILED_AVP 279 | |
1668 #define AC_PROXY_HOST 280 | |
1669 #define AC_ERROR_MESSAGE 281 | |
1670 #define AC_ROUTE_RECORD 282 | |
1671 #define AC_DESTINATION_REALM 283 | |
1672 #define AC_PROXY_INFO 284 | |
1673 #define AC_REDIRECT_HOST 292 | |
1674 #define AC_DESTINATION_HOST 293 | |
1675 #define AC_ERROR_REPORTING_HOST 294 | |
1676 #define AC_ORIGIN_REALM 296 | |
1677 #define AC_INBAND_SECURITY_ID 299 | |
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1678 #define ACV_ISI_NO_INBAND_SECURITY 0 |
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1679 #define ACV_ISI_TLS 1 |
0 | 1680 |
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1681 /* Error codes from Base protocol |
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1682 (reference: http://www.iana.org/assignments/aaa-parameters/aaa-parameters.xml#aaa-parameters-4) |
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1683 Note that currently, rfc3588bis-26 has some different values for some of these |
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1684 */ |
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1685 #define ER_DIAMETER_MULTI_ROUND_AUTH 1001 |
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1686 |
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1687 #define ER_DIAMETER_SUCCESS 2001 |
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1688 #define ER_DIAMETER_LIMITED_SUCCESS 2002 |
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1689 |
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1690 #define ER_DIAMETER_COMMAND_UNSUPPORTED 3001 /* 5019 ? */ |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1691 #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
|
1692 #define ER_DIAMETER_REALM_NOT_SERVED 3003 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1693 #define ER_DIAMETER_TOO_BUSY 3004 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1694 #define ER_DIAMETER_LOOP_DETECTED 3005 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1695 #define ER_DIAMETER_REDIRECT_INDICATION 3006 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1696 #define ER_DIAMETER_APPLICATION_UNSUPPORTED 3007 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1697 #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
|
1698 #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
|
1699 #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
|
1700 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1701 #define ER_DIAMETER_AUTHENTICATION_REJECTED 4001 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1702 #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
|
1703 #define ER_ELECTION_LOST 4003 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1704 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1705 #define ER_DIAMETER_AVP_UNSUPPORTED 5001 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1706 #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
|
1707 #define ER_DIAMETER_AUTHORIZATION_REJECTED 5003 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1708 #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
|
1709 #define ER_DIAMETER_MISSING_AVP 5005 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1710 #define ER_DIAMETER_RESOURCES_EXCEEDED 5006 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1711 #define ER_DIAMETER_CONTRADICTING_AVPS 5007 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1712 #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
|
1713 #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
|
1714 #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
|
1715 #define ER_DIAMETER_UNSUPPORTED_VERSION 5011 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1716 #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
|
1717 #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
|
1718 #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
|
1719 #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
|
1720 #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
|
1721 #define ER_DIAMETER_NO_COMMON_SECURITY 5017 |
0 | 1722 |
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1723 |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1724 /*============================================================*/ |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1725 /* SESSIONS */ |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1726 /*============================================================*/ |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1727 |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1728 /* 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
|
1729 struct session_handler; |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1730 |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1731 /* 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
|
1732 struct session; |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1733 |
226
406f74f0789b
Few cosmetics changes
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
216
diff
changeset
|
1734 /* 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
|
1735 typedef void session_state; |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1736 |
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
|
1737 /* 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
|
1738 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
|
1739 |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1740 /* |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1741 * FUNCTION: fd_sess_handler_create |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1742 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1743 * PARAMETERS: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1744 * 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
|
1745 * 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
|
1746 * 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
|
1747 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1748 * DESCRIPTION: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1749 * 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
|
1750 * 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
|
1751 * 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
|
1752 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1753 * RETURN VALUE: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1754 * 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
|
1755 * EINVAL : A parameter is invalid. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1756 * 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
|
1757 */ |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
1758 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
|
1759 /* 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
|
1760 #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
|
1761 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
|
1762 |
340
81821e9f6988
Fix issue on session cleanup callback parameters -- thanks Souheil for reporting.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
336
diff
changeset
|
1763 |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1764 /* |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1765 * FUNCTION: fd_sess_handler_destroy |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1766 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1767 * PARAMETERS: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1768 * 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
|
1769 * opaque : the opaque pointer registered with the callback is restored here (if ! NULL). |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1770 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1771 * DESCRIPTION: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1772 * This destroys a session handler (typically called when an application is shutting down). |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1773 * If sessions states are registered with this handler, the cleanup callback is called on them. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1774 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1775 * RETURN VALUE: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1776 * 0 : The handler was destroyed. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1777 * EINVAL : A parameter is invalid. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1778 * 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
|
1779 */ |
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
|
1780 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
|
1781 |
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1782 |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1783 |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1784 /* |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1785 * FUNCTION: fd_sess_new |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1786 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1787 * PARAMETERS: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1788 * 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:
705
diff
changeset
|
1789 * diamid : a Diameter Identity, or NULL. |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
1790 * 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
|
1791 * 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
|
1792 * 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
changeset
|
1793 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1794 * DESCRIPTION: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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1795 * Create a new session object. The Session-Id string associated with this session is generated as follow: |
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1796 * If diamId parameter is provided, the string is created according to the RFC: <diamId>;<high32>;<low32>[;opt] where |
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parents:
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diff
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|
1797 * diamId is a Diameter Identity. |
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parents:
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diff
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|
1798 * high32 and low32 are the parts of a monotonic 64 bits counter initialized to (time, 0) at startup. |
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parents:
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1799 * opt is an optional string that can be concatenated to the identifier. |
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diff
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|
1800 * If diamId is NULL, the string is exactly the content of opt. |
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2
diff
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1801 * |
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1802 * RETURN VALUE: |
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Progress; added session module; testsess to be completed
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1803 * 0 : The session is created. |
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Progress; added session module; testsess to be completed
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1804 * EINVAL : A parameter is invalid. |
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diff
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1805 * EALREADY : A session with the same name already exists (returned in *session) |
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1806 * ENOMEM : Not enough memory to complete the operation |
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1807 */ |
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1808 int fd_sess_new ( struct session ** session, DiamId_t diamid, size_t diamidlen, uint8_t * opt, size_t optlen ); |
3
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|
1809 |
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|
1810 /* |
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parents:
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1811 * FUNCTION: fd_sess_fromsid |
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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1812 * |
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Progress; added session module; testsess to be completed
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1813 * PARAMETERS: |
706
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Large UNTESTED commit with the following changes:
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1814 * sid : pointer to a string containing a Session-Id (should be UTF-8). |
3
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parents:
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diff
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|
1815 * len : length of the sid string (which does not need to be '\0'-terminated) |
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Progress; added session module; testsess to be completed
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parents:
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|
1816 * 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
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|
1817 * 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>
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1
diff
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|
1818 * |
3
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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1819 * DESCRIPTION: |
85
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
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|
1820 * 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
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|
1821 * id, a new object is silently created (equivalent to fd_sess_new with flag SESSION_NEW_FULL). |
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
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1822 * |
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1823 * RETURN VALUE: |
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Progress; added session module; testsess to be completed
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parents:
2
diff
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|
1824 * 0 : The session parameter has been updated. |
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
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1825 * 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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1826 * ENOMEM : Not enough memory to complete the operation |
ef303f1078ab
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1827 */ |
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Large UNTESTED commit with the following changes:
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|
1828 int fd_sess_fromsid ( uint8_t * sid, size_t len, struct session ** session, int * isnew); |
3
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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1829 |
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Progress; added session module; testsess to be completed
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|
1830 /* |
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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1831 * FUNCTION: fd_sess_getsid |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1832 * |
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parents:
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1833 * PARAMETERS: |
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Progress; added session module; testsess to be completed
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1834 * session : Pointer to a session object. |
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1835 * sid : On success, the location of the sid is stored here. |
2
d8ce06172629
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
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|
1836 * |
3
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|
1837 * DESCRIPTION: |
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|
1838 * Retrieve the session identifier (Session-Id) corresponding to a session object. |
706
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Large UNTESTED commit with the following changes:
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1839 * The returned sid is a \0-terminated binary string which might be UTF-8 (but there is no guarantee in the framework). |
3
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parents:
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diff
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|
1840 * It may be used for example to set the value of an AVP. |
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Progress; added session module; testsess to be completed
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parents:
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diff
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1841 * 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
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|
1842 * |
3
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1843 * RETURN VALUE: |
706
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Large UNTESTED commit with the following changes:
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1844 * 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:
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diff
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1845 * EINVAL : A parameter is invalid. |
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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1846 */ |
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Large UNTESTED commit with the following changes:
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1847 int fd_sess_getsid ( struct session * session, os0_t * sid, size_t * sidlen ); |
3
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1848 |
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1849 /* |
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parents:
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1850 * FUNCTION: fd_sess_settimeout |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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1851 * |
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1852 * PARAMETERS: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1853 * 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
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|
1854 * 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
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|
1855 * |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1856 * DESCRIPTION: |
ef303f1078ab
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1857 * 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
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|
1858 * 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
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|
1859 * 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
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|
1860 * module that registered data with this session is called, then the |
ef303f1078ab
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1861 * session is cleared. |
2
d8ce06172629
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1
diff
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|
1862 * |
3
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1863 * There is a possible race condition between cleanup of the session |
ef303f1078ab
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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1864 * 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
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|
1865 * using data from a session that is about to expire / expired. |
2
d8ce06172629
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
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|
1866 * |
3
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diff
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1867 * RETURN VALUE: |
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Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1868 * 0 : The session timeout has been updated. |
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1869 * EINVAL : A parameter is invalid. |
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1870 */ |
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parents:
2
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|
1871 int fd_sess_settimeout( struct session * session, const struct timespec * timeout ); |
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|
1872 |
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|
1873 /* |
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1874 * FUNCTION: fd_sess_destroy |
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1875 * |
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|
1876 * PARAMETERS: |
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parents:
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1877 * session : Pointer to a session object. |
ef303f1078ab
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1878 * |
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1879 * DESCRIPTION: |
706
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1880 * Destroys all associated states of a session, if any. |
3
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1881 * Equivalent to a session timeout expired, but the effect is immediate. |
706
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1882 * The session itself is marked as deleted, and will be freed when it is not referenced |
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1883 * by any message anymore. |
3
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1884 * |
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1885 * RETURN VALUE: |
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1886 * 0 : The session no longer exists. |
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2
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1887 * EINVAL : A parameter is invalid. |
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|
1888 */ |
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|
1889 int fd_sess_destroy ( struct session ** session ); |
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1890 |
6
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1891 /* |
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1892 * FUNCTION: fd_sess_reclaim |
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1893 * |
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1894 * PARAMETERS: |
b0d377c79d80
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1895 * session : Pointer to a session object. |
b0d377c79d80
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1896 * |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
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1897 * DESCRIPTION: |
706
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1898 * Equivalent to fd_sess_destroy, only if no session_state is associated with the session. |
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1899 * Otherwise, this function has no effect (except that it sets *session to NULL). |
6
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1900 * |
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1901 * RETURN VALUE: |
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1902 * 0 : The session was reclaimed. |
6
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diff
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1903 * EINVAL : A parameter is invalid. |
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Progress on dispatch API spec; added fd_sess_reclaim function and test
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diff
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1904 */ |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
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diff
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|
1905 int fd_sess_reclaim ( struct session ** session ); |
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Progress on dispatch API spec; added fd_sess_reclaim function and test
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1906 |
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1907 |
3
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1908 |
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|
1909 |
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|
1910 /* |
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1911 * FUNCTION: fd_sess_state_store |
2
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1912 * |
3
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1913 * PARAMETERS: |
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1914 * handler : The handler with which the state is registered. |
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1915 * session : The session object with which the state is registered. |
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1916 * state : An application state (opaque data) to store with the session. |
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1917 * |
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1918 * DESCRIPTION: |
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1919 * Stores an application state with a session. This state can later be retrieved |
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1920 * with fd_sess_state_retrieve, or implicitly in the cleanup handler when the session |
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1921 * is destroyed. |
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1922 * |
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1923 * RETURN VALUE: |
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1924 * 0 : The state has been stored. |
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1925 * EINVAL : A parameter is invalid. |
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1926 * EALREADY : Data was already associated with this session and client. |
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1927 * ENOMEM : Not enough memory to complete the operation |
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1928 */ |
6
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1929 int fd_sess_state_store_internal ( struct session_handler * handler, struct session * session, session_state ** state ); |
5
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1930 #define fd_sess_state_store( _handler, _session, _state ) \ |
6
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1931 fd_sess_state_store_internal( (_handler), (_session), (void *)(_state) ) |
3
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1932 |
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1933 /* |
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1934 * FUNCTION: fd_sess_state_retrieve |
2
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1935 * |
3
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1936 * PARAMETERS: |
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1937 * handler : The handler with which the state was registered. |
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1938 * session : The session object with which the state was registered. |
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1939 * state : Location where the state must be saved if it is found. |
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1940 * |
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1941 * DESCRIPTION: |
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1942 * Retrieves a state saved by fd_sess_state_store. |
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1943 * After this function has been called, the state is no longer associated with |
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1944 * the session. A new call to fd_sess_state_store must be performed in order to |
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1945 * store again the data with the session. |
2
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1946 * |
3
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1947 * RETURN VALUE: |
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1948 * 0 : *state is updated (NULL or points to the state if it was found). |
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1949 * EINVAL : A parameter is invalid. |
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1950 */ |
620
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1951 int fd_sess_state_retrieve_internal ( struct session_handler * handler, struct session * session, session_state ** state ); |
5
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1952 #define fd_sess_state_retrieve( _handler, _session, _state ) \ |
6
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1953 fd_sess_state_retrieve_internal( (_handler), (_session), (void *)(_state) ) |
2
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1954 |
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1955 |
3
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1956 /* For debug */ |
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1957 void fd_sess_dump(int level, struct session * session); |
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1958 void fd_sess_dump_hdl(int level, struct session_handler * handler); |
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1959 |
778
003df4a9ade2
Added two new interfaces on Zach requests http://lists.freediameter.net/pipermail/help/2012-January/000312.html and http://lists.freediameter.net/pipermail/help/2012-January/000311.html
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1960 /* For statistics / monitoring: get the number of struct session in memory */ |
003df4a9ade2
Added two new interfaces on Zach requests http://lists.freediameter.net/pipermail/help/2012-January/000312.html and http://lists.freediameter.net/pipermail/help/2012-January/000311.html
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1961 int fd_sess_getcount(uint32_t *cnt); |
003df4a9ade2
Added two new interfaces on Zach requests http://lists.freediameter.net/pipermail/help/2012-January/000312.html and http://lists.freediameter.net/pipermail/help/2012-January/000311.html
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1962 |
2
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|
1963 /*============================================================*/ |
83
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1964 /* ROUTING */ |
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1965 /*============================================================*/ |
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1966 |
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1967 /* The following functions are helpers for the routing module. |
168
6db078b955e3
Completed rt_default extension
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1968 The routing data is stored in the message itself. */ |
83
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|
1969 |
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1970 /* Structure that contains the routing data for a message */ |
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1971 struct rt_data; |
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1972 |
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|
1973 /* Following functions are helpers to create the routing data of a message */ |
620
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|
1974 int fd_rtd_init(struct rt_data ** rtd); |
83
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1975 void fd_rtd_free(struct rt_data ** rtd); |
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1976 |
706
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1977 /* Add a peer to the candidates list. */ |
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1978 int fd_rtd_candidate_add(struct rt_data * rtd, DiamId_t peerid, size_t peeridlen, DiamId_t realm, size_t realmlen); |
83
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1979 |
706
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1980 /* Remove a peer from the candidates (if it is found). The search is case-insensitive. */ |
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1981 void fd_rtd_candidate_del(struct rt_data * rtd, uint8_t * id, size_t idsz); |
83
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|
1982 |
88
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Completed routing module
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87
diff
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|
1983 /* Extract the list of valid candidates, and initialize their scores to 0 */ |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
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|
1984 void fd_rtd_candidate_extract(struct rt_data * rtd, struct fd_list ** candidates, int ini_score); |
88
9e2db1647d6f
Completed routing module
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parents:
87
diff
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|
1985 |
83
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diff
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|
1986 /* If a peer returned a protocol error for this message, save it so that we don't try to send it there again */ |
706
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1987 int fd_rtd_error_add(struct rt_data * rtd, DiamId_t sentto, size_t senttolen, uint8_t * origin, size_t originsz, uint32_t rcode); |
83
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|
1988 |
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|
1989 /* The extracted list items have the following structure: */ |
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|
1990 struct rtd_candidate { |
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1991 struct fd_list chain; /* link in the list returned by the previous fct */ |
706
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1992 DiamId_t diamid; /* the diameter Id of the peer */ |
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Large UNTESTED commit with the following changes:
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1993 size_t diamidlen; /* cached size of the diamid string */ |
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Large UNTESTED commit with the following changes:
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|
1994 DiamId_t realm; /* the diameter realm of the peer */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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|
1995 size_t realmlen; /* cached size of realm */ |
83
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|
1996 int score; /* the current routing score for this peer, see fd_rt_out_register definition for details */ |
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Started support for routing module
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|
1997 }; |
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Started support for routing module
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diff
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|
1998 |
706
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Large UNTESTED commit with the following changes:
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|
1999 /* Reorder the list of peers by score */ |
83
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Started support for routing module
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|
2000 int fd_rtd_candidate_reorder(struct fd_list * candidates); |
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Started support for routing module
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diff
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|
2001 |
85
e5fcd672caff
Added new function to retrieve messages sessions easily
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parents:
83
diff
changeset
|
2002 /* 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. */ |
e5fcd672caff
Added new function to retrieve messages sessions easily
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|
2003 /* Beware that this could lead to routing loops */ |
83
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Started support for routing module
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diff
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|
2004 |
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Started support for routing module
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|
2005 /*============================================================*/ |
0 | 2006 /* MESSAGES */ |
2007 /*============================================================*/ | |
2008 | |
2009 /* The following types are opaque */ | |
2010 struct msg; /* A message: command with children AVPs (possibly grand children) */ | |
2011 struct avp; /* AVP object */ | |
2012 | |
2013 /* Some details about chaining: | |
2014 * | |
2015 * A message is made of a header ( msg ) and 0 or more AVPs ( avp ). | |
2016 * The structure is a kind of tree, where some AVPs (grouped AVPs) can contain other AVPs. | |
871 | 2017 * Example: |
0 | 2018 * msg |
2019 * |-avp | |
2020 * |-gavp | |
2021 * | |-avp | |
2022 * | |-avp | |
2023 * | \-avp | |
2024 * |-avp | |
2025 * \-avp | |
2026 * | |
2027 */ | |
2028 | |
2029 /* The following type is used to point to either a msg or an AVP */ | |
2030 typedef void msg_or_avp; | |
2031 | |
2032 /* The Diameter protocol version */ | |
2033 #define DIAMETER_VERSION 1 | |
2034 | |
2035 /* In the two following types, some fields are marked (READONLY). | |
2036 * This means that the content of these fields will be overwritten by the daemon so modifying it is useless. | |
2037 */ | |
2038 | |
2039 /* The following structure represents the header of a message. All data is in host byte order. */ | |
2040 struct msg_hdr { | |
2041 uint8_t msg_version; /* (READONLY) Version of Diameter: must be DIAMETER_VERSION. */ | |
2042 uint32_t msg_length; /* (READONLY)(3 bytes) indicates the length of the message */ | |
2043 uint8_t msg_flags; /* Message flags: CMD_FLAG_* */ | |
2044 command_code_t msg_code; /* (3 bytes) the command-code. See dictionary-api.h for more detail */ | |
2045 application_id_t msg_appl; /* The application issuing this message */ | |
2046 uint32_t msg_hbhid; /* The Hop-by-Hop identifier of the message */ | |
2047 uint32_t msg_eteid; /* The End-to-End identifier of the message */ | |
2048 }; | |
2049 | |
2050 /* The following structure represents the visible content of an AVP. All data is in host byte order. */ | |
2051 struct avp_hdr { | |
2052 avp_code_t avp_code; /* the AVP Code */ | |
2053 uint8_t avp_flags; /* AVP_FLAG_* flags */ | |
2054 uint32_t avp_len; /* (READONLY)(Only 3 bytes are used) the length of the AVP as described in the RFC */ | |
2055 vendor_id_t avp_vendor; /* Only used if AVP_FLAG_VENDOR is present */ | |
2056 union avp_value *avp_value; /* pointer to the value of the AVP. NULL means that the value is not set / not understood. | |
2057 One should not directly change this value. Use the msg_avp_setvalue function instead. | |
2058 The content of the pointed structure can be changed directly, with this restriction: | |
2059 if the AVP is an OctetString, and you change the value of the pointer avp_value->os.data, then | |
2060 you must call free() on the previous value, and the new one must be free()-able. | |
2061 */ | |
2062 }; | |
2063 | |
2064 /* The following enum is used to browse inside message hierarchy (msg, gavp, avp) */ | |
2065 enum msg_brw_dir { | |
2066 MSG_BRW_NEXT = 1, /* Get the next element at the same level, or NULL if this is the last element. */ | |
2067 MSG_BRW_PREV, /* Get the previous element at the same level, or NULL if this is the first element. */ | |
2068 MSG_BRW_FIRST_CHILD, /* Get the first child AVP of this element, if any. */ | |
2069 MSG_BRW_LAST_CHILD, /* Get the last child AVP of this element, if any. */ | |
2070 MSG_BRW_PARENT, /* Get the parent element of this element, if any. Only the msg_t object has no parent. */ | |
2071 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. */ | |
2072 }; | |
2073 | |
2074 /* Some flags used in the functions bellow */ | |
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2075 #define AVPFL_SET_BLANK_VALUE 0x01 /* When creating an AVP, initialize its value to a blank area */ |
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2076 #define AVPFL_SET_RAWDATA_FROM_AVP 0x02 /* When creating an AVP, initialize its rawdata area from an existing AVP -- it is only blank padding (for error reporting) */ |
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2077 #define AVPFL_MAX AVPFL_SET_RAWDATA_FROM_AVP /* The biggest valid flag value */ |
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2078 |
0 | 2079 #define MSGFL_ALLOC_ETEID 0x01 /* When creating a message, a new end-to-end ID is allocated and set in the message */ |
2080 #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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2081 #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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2082 #define MSGFL_MAX MSGFL_ANSW_NOSID /* The biggest valid flag value */ |
0 | 2083 |
2084 /**************************************************/ | |
2085 /* Message creation, manipulation, disposal */ | |
2086 /**************************************************/ | |
2087 /* | |
2088 * FUNCTION: fd_msg_avp_new | |
2089 * | |
2090 * PARAMETERS: | |
2091 * model : Pointer to a DICT_AVP dictionary object describing the avp to create, or NULL. | |
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2092 * flags : Flags to use in creation (AVPFL_*). |
0 | 2093 * avp : Upon success, pointer to the new avp is stored here. |
2094 * | |
2095 * DESCRIPTION: | |
2096 * Create a new AVP instance. | |
2097 * | |
2098 * RETURN VALUE: | |
2099 * 0 : The AVP is created. | |
2100 * EINVAL : A parameter is invalid. | |
2101 * (other standard errors may be returned, too, with their standard meaning. Example: | |
2102 * ENOMEM : Memory allocation for the new avp failed.) | |
2103 */ | |
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2104 int fd_msg_avp_new ( struct dict_object * model, int flags, struct avp ** avp ); |
0 | 2105 |
2106 /* | |
2107 * FUNCTION: fd_msg_new | |
2108 * | |
2109 * PARAMETERS: | |
2110 * model : Pointer to a DICT_COMMAND dictionary object describing the message to create, or NULL. | |
2111 * flags : combination of MSGFL_* flags. | |
2112 * msg : Upon success, pointer to the new message is stored here. | |
2113 * | |
2114 * DESCRIPTION: | |
2115 * Create a new empty Diameter message. | |
2116 * | |
2117 * RETURN VALUE: | |
2118 * 0 : The message is created. | |
2119 * EINVAL : A parameter is invalid. | |
2120 * (other standard errors may be returned, too, with their standard meaning. Example: | |
2121 * ENOMEM : Memory allocation for the new message failed.) | |
2122 */ | |
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2123 int fd_msg_new ( struct dict_object * model, int flags, struct msg ** msg ); |
0 | 2124 |
2125 /* | |
2126 * FUNCTION: msg_new_answer_from_req | |
2127 * | |
2128 * PARAMETERS: | |
2129 * dict : Pointer to the dictionary containing the model of the query. | |
2130 * msg : The location of the query on function call. Updated by the location of answer message on return. | |
2131 * flag : Pass MSGFL_ANSW_ERROR to indicate if the answer is an error message (will set the 'E' bit) | |
2132 * | |
2133 * DESCRIPTION: | |
2134 * This function creates the empty answer message corresponding to a request. | |
2135 * The header is set properly (R flag, ccode, appid, hbhid, eteid) | |
2136 * The Session-Id AVP is copied if present. | |
2137 * The calling code should usually call fd_msg_rescode_set function on the answer. | |
2138 * Upon return, the original query may be retrieved by calling fd_msg_answ_getq on the message. | |
2139 * | |
2140 * RETURN VALUE: | |
2141 * 0 : Operation complete. | |
2142 * !0 : an error occurred. | |
2143 */ | |
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2144 int fd_msg_new_answer_from_req ( struct dictionary * dict, struct msg ** msg, int flag ); |
0 | 2145 |
2146 /* | |
2147 * FUNCTION: fd_msg_browse | |
2148 * | |
2149 * PARAMETERS: | |
2150 * reference : Pointer to a struct msg or struct avp. | |
2151 * dir : Direction for browsing | |
2152 * found : If not NULL, updated with the element that has been found, if any, or NULL if no element was found / an error occurred. | |
2153 * 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. | |
2154 * | |
2155 * DESCRIPTION: | |
2156 * Explore the content of a message object (hierarchy). If "found" is null, only error checking is performed. | |
2157 * If "depth" is provided, it is updated as follow on successful function return: | |
2158 * - not modified for MSG_BRW_NEXT and MSG_BRW_PREV. | |
2159 * - *depth = *depth + 1 for MSG_BRW_FIRST_CHILD and MSG_BRW_LAST_CHILD. | |
2160 * - *depth = *depth - 1 for MSG_BRW_PARENT. | |
2161 * - *depth = *depth + X for MSG_BRW_WALK, with X between 1 (returned the 1st child) and -N (returned the Nth parent's next). | |
2162 * | |
2163 * RETURN VALUE: | |
2164 * 0 : found has been updated (if non NULL). | |
2165 * EINVAL : A parameter is invalid. | |
2166 * ENOENT : No element has been found where requested, and "found" was NULL (otherwise, *found is set to NULL and 0 is returned). | |
2167 */ | |
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2168 int fd_msg_browse_internal ( msg_or_avp * reference, enum msg_brw_dir dir, msg_or_avp ** found, int * depth ); |
0 | 2169 /* Macro to avoid having to cast the third parameter everywhere */ |
2170 #define fd_msg_browse( ref, dir, found, depth ) \ | |
2171 fd_msg_browse_internal( (ref), (dir), (void *)(found), (depth) ) | |
2172 | |
2173 | |
2174 /* | |
2175 * FUNCTION: fd_msg_avp_add | |
2176 * | |
2177 * PARAMETERS: | |
2178 * reference : Pointer to a valid msg or avp. | |
2179 * dir : location where the new AVP should be inserted, relative to the reference. MSG_BRW_PARENT and MSG_BRW_WALK are not valid. | |
2180 * avp : pointer to the AVP object that must be inserted. | |
2181 * | |
2182 * DESCRIPTION: | |
2183 * Adds an AVP into an object that can contain it: grouped AVP or message. | |
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2184 * Note that the added AVP will be freed at the same time as the object it is added to, |
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2185 * so it should not be freed after the call to this function. |
0 | 2186 * |
2187 * RETURN VALUE: | |
2188 * 0 : The AVP has been added. | |
2189 * EINVAL : A parameter is invalid. | |
2190 */ | |
2191 int fd_msg_avp_add ( msg_or_avp * reference, enum msg_brw_dir dir, struct avp *avp); | |
2192 | |
2193 /* | |
2194 * FUNCTION: fd_msg_search_avp | |
2195 * | |
2196 * PARAMETERS: | |
2197 * msg : The message structure in which to search the AVP. | |
2198 * what : The dictionary model of the AVP to search. | |
2199 * avp : location where the AVP reference is stored if found. | |
2200 * | |
2201 * DESCRIPTION: | |
2202 * Search the first top-level AVP of a given model inside a message. | |
2203 * Note: only the first instance of the AVP is returned by this function. | |
2204 * Note: only top-level AVPs are searched, not inside grouped AVPs. | |
2205 * Use msg_browse if you need more advanced research features. | |
2206 * | |
2207 * RETURN VALUE: | |
2208 * 0 : The AVP has been found. | |
2209 * EINVAL : A parameter is invalid. | |
2210 * ENOENT : No AVP has been found, and "avp" was NULL (otherwise, *avp is set to NULL and 0 returned). | |
2211 */ | |
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2212 int fd_msg_search_avp ( struct msg * msg, struct dict_object * what, struct avp ** avp ); |
0 | 2213 |
2214 /* | |
2215 * FUNCTION: fd_msg_free | |
2216 * | |
2217 * PARAMETERS: | |
2218 * object : pointer to the message or AVP object that must be unlinked and freed. | |
2219 * | |
2220 * DESCRIPTION: | |
2221 * Unlink and free a message or AVP object and its children. | |
2222 * If the object is an AVP linked into a message, the AVP is removed before being freed. | |
2223 * | |
2224 * RETURN VALUE: | |
2225 * 0 : The message has been freed. | |
2226 * EINVAL : A parameter is invalid. | |
2227 */ | |
2228 int fd_msg_free ( msg_or_avp * object ); | |
2229 | |
2230 /***************************************/ | |
2231 /* Dump functions */ | |
2232 /***************************************/ | |
2233 /* | |
2234 * FUNCTION: fd_msg_dump_* | |
2235 * | |
2236 * PARAMETERS: | |
2237 * level : the log level (INFO, FULL, ...) at which the object is dumped | |
2238 * obj : A msg or avp object. | |
2239 * | |
2240 * DESCRIPTION: | |
2241 * These functions dump the content of a message to the debug log | |
2242 * either recursively or only the object itself. | |
2243 * | |
2244 * RETURN VALUE: | |
2245 * - | |
2246 */ | |
2247 void fd_msg_dump_walk ( int level, msg_or_avp *obj ); | |
2248 void fd_msg_dump_one ( int level, msg_or_avp *obj ); | |
2249 | |
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2250 /* |
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2251 * FUNCTION: fd_msg_log |
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2252 * |
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2253 * PARAMETERS: |
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2254 * cause : Context for calling this function. This allows the log facility to be configured precisely. |
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2255 * msg : The message to log. |
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2256 * prefix_format: Printf-style format message that is printed ahead of the message. Might be reason for drop or so. |
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2257 * |
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2258 * DESCRIPTION: |
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2259 * This function is called when a Diameter message reaches some particular points in the fD framework. |
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2260 * The actual effect is configurable: log in a separate file, dump in the debug log, etc. |
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2261 * |
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2262 * RETURN VALUE: |
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2263 * - |
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2264 */ |
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2265 enum fd_msg_log_cause { |
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2266 FD_MSG_LOG_DROPPED = 1, /* message has been dropped by the framework */ |
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2267 FD_MSG_LOG_RECEIVED, /* message received from the network */ |
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2268 FD_MSG_LOG_SENT, /* message sent to another peer */ |
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2269 FD_MSG_LOG_NODELIVER, /* message could not be delivered to any peer */ |
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2270 FD_MSG_LOG_TIMING /* profiling messages */ |
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2271 }; |
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2272 #define FD_MSG_LOG_MAX FD_MSG_LOG_TIMING |
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2273 void fd_msg_log( enum fd_msg_log_cause cause, struct msg * msg, const char * prefix_format, ... ); |
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2274 |
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2275 /* configure the msg_log facility */ |
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2276 enum fd_msg_log_method { |
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2277 FD_MSG_LOGTO_NONE = 0, /* The message is not dumped. This is the default. */ |
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2278 FD_MSG_LOGTO_DEBUGONLY, /* Simply log the message with other debug information, at the INFO level. */ |
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2279 FD_MSG_LOGTO_FILE, /* Messages are dumped in a single file, defined in arg */ |
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2280 FD_MSG_LOGTO_DIR /* Messages are dumped in different files within one directory defined in arg. */ |
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2281 }; |
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2282 int fd_msg_log_config(enum fd_msg_log_cause cause, enum fd_msg_log_method method, const char * arg); |
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2283 void fd_msg_log_init(struct dictionary *dict); |
0 | 2284 |
2285 /*********************************************/ | |
2286 /* Message metadata management functions */ | |
2287 /*********************************************/ | |
2288 /* | |
2289 * FUNCTION: fd_msg_model | |
2290 * | |
2291 * PARAMETERS: | |
2292 * reference : Pointer to a valid msg or avp. | |
2293 * model : on success, pointer to the dictionary model of this command or AVP. NULL if the model is unknown. | |
2294 * | |
2295 * DESCRIPTION: | |
2296 * Retrieve the dictionary object describing this message or avp. If the object is unknown or the fd_msg_parse_dict has not been called, | |
2297 * *model is set to NULL. | |
2298 * | |
2299 * RETURN VALUE: | |
2300 * 0 : The model has been set. | |
2301 * EINVAL : A parameter is invalid. | |
2302 */ | |
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2303 int fd_msg_model ( msg_or_avp * reference, struct dict_object ** model ); |
0 | 2304 |
2305 /* | |
2306 * FUNCTION: fd_msg_hdr | |
2307 * | |
2308 * PARAMETERS: | |
2309 * msg : Pointer to a valid message object. | |
2310 * pdata : Upon success, pointer to the msg_hdr structure of this message. The fields may be modified. | |
2311 * | |
2312 * DESCRIPTION: | |
2313 * Retrieve location of modifiable section of a message. | |
2314 * | |
2315 * RETURN VALUE: | |
2316 * 0 : The location has been written. | |
2317 * EINVAL : A parameter is invalid. | |
2318 */ | |
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2319 int fd_msg_hdr ( struct msg *msg, struct msg_hdr ** pdata ); |
0 | 2320 |
2321 /* | |
2322 * FUNCTION: fd_msg_avp_hdr | |
2323 * | |
2324 * PARAMETERS: | |
2325 * avp : Pointer to a valid avp object. | |
2326 * pdata : Upon success, pointer to the avp_hdr structure of this avp. The fields may be modified. | |
2327 * | |
2328 * DESCRIPTION: | |
2329 * Retrieve location of modifiable data of an avp. | |
2330 * | |
2331 * RETURN VALUE: | |
2332 * 0 : The location has been written. | |
2333 * EINVAL : A parameter is invalid. | |
2334 */ | |
620
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2335 int fd_msg_avp_hdr ( struct avp *avp, struct avp_hdr ** pdata ); |
0 | 2336 |
2337 /* | |
2338 * FUNCTION: fd_msg_answ_associate, fd_msg_answ_getq, fd_msg_answ_detach | |
2339 * | |
2340 * PARAMETERS: | |
2341 * answer : the received answer message | |
2342 * query : the corresponding query that had been sent | |
2343 * | |
2344 * DESCRIPTION: | |
2345 * fd_msg_answ_associate associates a query msg with the received answer. | |
2346 * Query is retrieved with fd_msg_answ_getq. | |
2347 * If answer message is freed, the query is also freed. | |
2348 * If the msg_answ_detach function is called, the association is removed. | |
2349 * This is meant to be called from the daemon only. | |
2350 * | |
2351 * RETURN VALUE: | |
2352 * 0 : ok | |
2353 * EINVAL: a parameter is invalid | |
2354 */ | |
2355 int fd_msg_answ_associate( struct msg * answer, struct msg * query ); | |
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2356 int fd_msg_answ_getq ( struct msg * answer, struct msg ** query ); |
0 | 2357 int fd_msg_answ_detach ( struct msg * answer ); |
2358 | |
2359 /* | |
2360 * FUNCTION: fd_msg_anscb_associate, fd_msg_anscb_get | |
2361 * | |
2362 * PARAMETERS: | |
2363 * msg : the answer message | |
2364 * anscb : the callback to associate with the message | |
2365 * data : the data to pass to the callback | |
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cfc8da9264f4
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2366 * timeout : (optional, use NULL if no timeout) a timeout associated with calling the cb. |
0 | 2367 * |
2368 * DESCRIPTION: | |
2369 * Associate or retrieve a callback with an answer message. | |
2370 * This is meant to be called from the daemon only. | |
2371 * | |
2372 * RETURN VALUE: | |
2373 * 0 : ok | |
2374 * EINVAL: a parameter is invalid | |
2375 */ | |
646
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2376 int fd_msg_anscb_associate( struct msg * msg, void ( *anscb)(void *, struct msg **), void * data, const struct timespec *timeout ); |
0 | 2377 int fd_msg_anscb_get ( struct msg * msg, void (**anscb)(void *, struct msg **), void ** data ); |
649
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2378 struct timespec *fd_msg_anscb_gettimeout( struct msg * msg ); /* returns NULL or a valid non-0 timespec */ |
0 | 2379 |
2380 /* | |
2381 * FUNCTION: fd_msg_rt_associate, fd_msg_rt_get | |
2382 * | |
2383 * PARAMETERS: | |
2384 * msg : the query message to be sent | |
2385 * list : the ordered list of possible next-peers | |
2386 * | |
2387 * DESCRIPTION: | |
2388 * Associate a routing list with a query, and retrieve it. | |
2389 * If the message is freed, the list is also freed. | |
2390 * | |
2391 * RETURN VALUE: | |
2392 * 0 : ok | |
2393 * EINVAL: a parameter is invalid | |
2394 */ | |
83
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2395 int fd_msg_rt_associate( struct msg * msg, struct rt_data ** rtd ); |
620
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2396 int fd_msg_rt_get ( struct msg * msg, struct rt_data ** rtd ); |
0 | 2397 |
2398 /* | |
2399 * FUNCTION: fd_msg_is_routable | |
2400 * | |
2401 * PARAMETERS: | |
2402 * msg : A msg object. | |
2403 * | |
2404 * DESCRIPTION: | |
2405 * This function returns a boolean telling if a given message is routable in the Diameter network, | |
2406 * or if it is a local link message only (ex: CER/CEA, DWR/DWA, ...). | |
2407 * | |
2408 * RETURN VALUE: | |
2409 * 0 : The message is not routable / an error occurred. | |
2410 * 1 : The message is routable. | |
2411 */ | |
2412 int fd_msg_is_routable ( struct msg * msg ); | |
2413 | |
2414 /* | |
2415 * FUNCTION: fd_msg_source_(g/s)et | |
2416 * | |
2417 * PARAMETERS: | |
2418 * msg : A msg object. | |
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2419 * diamid,len : The diameter id of the peer from which this message was received. |
0 | 2420 * add_rr : if true, a Route-Record AVP is added to the message with content diamid. In that case, dict must be supplied. |
2421 * dict : a dictionary with definition of Route-Record AVP (if add_rr is true) | |
2422 * | |
2423 * DESCRIPTION: | |
2424 * Store or retrieve the diameted id of the peer from which this message was received. | |
2425 * Will be used for example by the routing module to add the Route-Record AVP in forwarded requests, | |
2426 * or to direct answers to the appropriate peer. | |
2427 * | |
2428 * RETURN VALUE: | |
2429 * 0 : Operation complete. | |
2430 * !0 : an error occurred. | |
2431 */ | |
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2432 int fd_msg_source_set( struct msg * msg, DiamId_t diamid, size_t diamidlen, int add_rr, struct dictionary * dict ); |
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2433 int fd_msg_source_get( struct msg * msg, DiamId_t *diamid, size_t * diamidlen ); |
0 | 2434 |
2435 /* | |
895
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2436 * FUNCTION: fd_msg_ts_* |
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2437 * |
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2438 * PARAMETERS: |
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2439 * msg : A msg object. |
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2440 * ts : A struct timespec pointer, indexed on CLOCK_REALTIME |
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2441 * |
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2442 * DESCRIPTION: |
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2443 * Associate or retrieve timestamps meaningful for the message. |
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2444 * A timestamp with a value of { 0, 0 } means: not set. |
fbf77629cb7b
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2445 * |
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2446 * RETURN VALUE: |
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2447 * 0 : Operation complete. |
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2448 * !0 : an error occurred. |
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2449 */ |
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2450 /* when msg was received from network */ |
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2451 int fd_msg_ts_set_recv( struct msg * msg, struct timespec * ts ); |
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2452 int fd_msg_ts_get_recv( struct msg * msg, struct timespec * ts ); |
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2453 int fd_msg_ts_set_sent( struct msg * msg, struct timespec * ts ); |
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2454 int fd_msg_ts_get_sent( struct msg * msg, struct timespec * ts ); |
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2455 |
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2456 |
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2457 /* |
0 | 2458 * FUNCTION: fd_msg_eteid_get |
2459 * | |
2460 * PARAMETERS: | |
2461 * - | |
2462 * | |
2463 * DESCRIPTION: | |
2464 * Get a new unique end-to-end id value for the local peer. | |
2465 * | |
2466 * RETURN VALUE: | |
2467 * The new assigned value. No error code is defined. | |
2468 */ | |
2469 uint32_t fd_msg_eteid_get ( void ); | |
2470 | |
2471 | |
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2472 /* |
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2473 * FUNCTION: fd_msg_sess_get |
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2474 * |
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2475 * PARAMETERS: |
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2476 * dict : the dictionary that contains the Session-Id AVP definition |
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2477 * msg : A valid message. |
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2478 * session : Location to store the session pointer when retrieved. |
653
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2479 * isnew : Indicates if the session has been created. |
85
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2480 * |
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2481 * DESCRIPTION: |
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2482 * This function retrieves or creates the session object corresponding to a message. |
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2483 * If the message does not contain a Session-Id AVP, *session == NULL on return. |
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2484 * Note that the Session-Id AVP must never be modified after created in a message. |
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2485 * |
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2486 * RETURN VALUE: |
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2487 * 0 : success |
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2488 * !0 : standard error code. |
e5fcd672caff
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2489 */ |
653
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2490 int fd_msg_sess_get(struct dictionary * dict, struct msg * msg, struct session ** session, int * isnew); |
85
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2491 |
0 | 2492 /***************************************/ |
2493 /* Manage AVP values */ | |
2494 /***************************************/ | |
2495 | |
2496 /* | |
2497 * FUNCTION: fd_msg_avp_setvalue | |
2498 * | |
2499 * PARAMETERS: | |
2500 * avp : Pointer to a valid avp object with a NULL avp_value pointer. The model must be known. | |
2501 * value : pointer to an avp_value. The content will be COPIED into the internal storage area. | |
2502 * If data type is an octetstring, the data is also copied. | |
2503 * If value is a NULL pointer, the previous data is erased and value is unset in the AVP. | |
2504 * | |
2505 * DESCRIPTION: | |
2506 * Initialize the avp_value field of an AVP header. | |
2507 * | |
2508 * RETURN VALUE: | |
2509 * 0 : The avp_value pointer has been set. | |
2510 * EINVAL : A parameter is invalid. | |
2511 */ | |
2512 int fd_msg_avp_setvalue ( struct avp *avp, union avp_value *value ); | |
2513 | |
2514 /* | |
2515 * FUNCTION: fd_msg_avp_value_encode | |
2516 * | |
2517 * PARAMETERS: | |
2518 * avp : Pointer to a valid avp object with a NULL avp_value. The model must be known. | |
2519 * data : Pointer to the data that must be encoded as AVP value and stored in the AVP. | |
2520 * This is only valid for AVPs of derived type for which type_data_encode callback is set. (ex: Address type) | |
2521 * | |
2522 * DESCRIPTION: | |
2523 * Initialize the avp_value field of an AVP object from formatted data, using the AVP's type "type_data_encode" callback. | |
2524 * | |
2525 * RETURN VALUE: | |
2526 * 0 : The avp_value has been set. | |
2527 * EINVAL : A parameter is invalid. | |
2528 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
2529 */ | |
2530 int fd_msg_avp_value_encode ( void *data, struct avp *avp ); | |
2531 /* | |
2532 * FUNCTION: fd_msg_avp_value_interpret | |
2533 * | |
2534 * PARAMETERS: | |
2535 * avp : Pointer to a valid avp object with a non-NULL avp_value value. | |
2536 * data : Upon success, formatted interpretation of the AVP value is stored here. | |
2537 * | |
2538 * DESCRIPTION: | |
2539 * Interpret the content of an AVP of Derived type and store the result in data pointer. The structure | |
2540 * of the data pointer is dependent on the AVP type. This function calls the "type_data_interpret" callback | |
2541 * of the type. | |
2542 * | |
2543 * RETURN VALUE: | |
2544 * 0 : The avp_value has been set. | |
2545 * EINVAL : A parameter is invalid. | |
2546 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
2547 */ | |
2548 int fd_msg_avp_value_interpret ( struct avp *avp, void *data ); | |
2549 | |
2550 | |
2551 /***************************************/ | |
2552 /* Message parsing functions */ | |
2553 /***************************************/ | |
2554 | |
2555 /* | |
2556 * FUNCTION: fd_msg_bufferize | |
2557 * | |
2558 * PARAMETERS: | |
2559 * msg : A valid msg object. All AVPs must have a value set. | |
2560 * buffer : Upon success, this points to a buffer (malloc'd) containing the message ready for network transmission (or security transformations). | |
2561 * The buffer may be freed after use. | |
2562 * len : if not NULL, the size of the buffer is written here. In any case, this size is updated in the msg header. | |
2563 * | |
2564 * DESCRIPTION: | |
2565 * Renders a message in memory as a buffer that can be sent over the network to the next peer. | |
2566 * | |
2567 * RETURN VALUE: | |
2568 * 0 : The location has been written. | |
2569 * EINVAL : The buffer does not contain a valid Diameter message. | |
2570 * ENOMEM : Unable to allocate enough memory to create the buffer object. | |
2571 */ | |
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2572 int fd_msg_bufferize ( struct msg * msg, uint8_t ** buffer, size_t * len ); |
0 | 2573 |
2574 /* | |
2575 * FUNCTION: fd_msg_parse_buffer | |
2576 * | |
2577 * PARAMETERS: | |
2578 * buffer : Pointer to a buffer containing a message received from the network. | |
2579 * buflen : the size in bytes of the buffer. | |
2580 * msg : Upon success, this points to a valid msg object. No AVP value is resolved in this object, nor grouped AVP. | |
2581 * | |
2582 * DESCRIPTION: | |
2583 * This function parses a buffer an creates a msg object to represent the structure of the message. | |
2584 * Since no dictionary lookup is performed, the values of the AVPs are not interpreted. To interpret the values, | |
2585 * the returned message object must be passed to fd_msg_parse_dict function. | |
2586 * The buffer pointer is saved inside the message and will be freed when not needed anymore. | |
2587 * | |
2588 * RETURN VALUE: | |
2589 * 0 : The location has been written. | |
2590 * ENOMEM : Unable to allocate enough memory to create the msg object. | |
2591 * EBADMSG : The buffer does not contain a valid Diameter message (or is truncated). | |
2592 * EINVAL : A parameter is invalid. | |
2593 */ | |
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2594 int fd_msg_parse_buffer ( uint8_t ** buffer, size_t buflen, struct msg ** msg ); |
0 | 2595 |
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2596 /* Parsing Error Information structure */ |
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2597 struct fd_pei { |
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2598 char * pei_errcode; /* name of the error code to use */ |
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2599 struct avp * pei_avp; /* pointer to invalid (in original message) or missing AVP (to be freed) */ |
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2600 char * pei_message; /* Overwrite default message if needed */ |
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changeset
|
2601 int pei_protoerr; /* do we set the 'E' bit in the error message ? */ |
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2602 }; |
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2603 |
0 | 2604 /* |
2605 * FUNCTION: fd_msg_parse_dict | |
2606 * | |
2607 * PARAMETERS: | |
2608 * object : A msg or AVP object as returned by fd_msg_parse_buffer. | |
2609 * dict : the dictionary containing the objects definitions to use for resolving all AVPs. | |
114
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2610 * error_info : If not NULL, will contain the detail about error upon return. May be used to generate an error reply. |
0 | 2611 * |
2612 * DESCRIPTION: | |
2613 * This function looks up for the command and each children AVP definitions in the dictionary. | |
2614 * If the dictionary definition is found, avp_model is set and the value of the AVP is interpreted accordingly and: | |
2615 * - for grouped AVPs, the children AVP are created and interpreted also. | |
2616 * - for numerical AVPs, the value is converted to host byte order and saved in the avp_value field. | |
2617 * - for octetstring AVPs, the string is copied into a new buffer and its address is saved in avp_value. | |
2618 * If the dictionary definition is not found, avp_model is set to NULL and | |
2619 * the content of the AVP is saved as an octetstring in an internal structure. avp_value is NULL. | |
637
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diff
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|
2620 * 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 | 2621 * |
2622 * RETURN VALUE: | |
2623 * 0 : The message has been fully parsed as described. | |
2624 * EINVAL : The msg parameter is invalid for this operation. | |
2625 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
2626 * ENOTSUP : No dictionary definition for the command or one of the mandatory AVP was found. | |
2627 */ | |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
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|
2628 int fd_msg_parse_dict ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info ); |
34
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|
2629 |
0 | 2630 /* |
2631 * FUNCTION: fd_msg_parse_rules | |
2632 * | |
2633 * PARAMETERS: | |
2634 * object : A msg or grouped avp object that must be verified. | |
2635 * dict : The dictionary containing the rules definitions. | |
34
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2636 * error_info : If not NULL, the first problem information will be saved here. |
0 | 2637 * |
2638 * DESCRIPTION: | |
2639 * Check that the children of the object do not conflict with the dictionary rules (ABNF compliance). | |
2640 * | |
2641 * RETURN VALUE: | |
2642 * 0 : The message has been fully parsed and complies to the defined rules. | |
2643 * EBADMSG : A conflict was detected, or a mandatory AVP is unknown in the dictionary. | |
2644 * EINVAL : The msg or avp object is invalid for this operation. | |
2645 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
2646 */ | |
620
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2647 int fd_msg_parse_rules ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info); |
34
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2648 |
0 | 2649 |
2650 | |
2651 /* | |
2652 * FUNCTION: fd_msg_update_length | |
2653 * | |
2654 * PARAMETERS: | |
2655 * object : Pointer to a valid msg or avp. | |
2656 * | |
2657 * DESCRIPTION: | |
2658 * Update the length field of the object passed as parameter. | |
2659 * As a side effect, all children objects are also updated. Therefore, all avp_value fields of | |
2660 * the children AVPs must be set, or an error will occur. | |
2661 * | |
2662 * RETURN VALUE: | |
2663 * 0 : The size has been recomputed. | |
2664 * EINVAL : A parameter is invalid. | |
2665 */ | |
2666 int fd_msg_update_length ( msg_or_avp * object ); | |
2667 | |
2668 | |
7
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2669 /*============================================================*/ |
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2670 /* DISPATCH */ |
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2671 /*============================================================*/ |
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2672 |
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2673 /* Dispatch module (passing incoming messages to extensions registered callbacks) |
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2674 * is split between the library and the daemon. |
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2675 * |
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2676 * The library provides the support for associating dispatch callbacks with |
e5af94b04946
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2677 * dictionary objects. |
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2678 * |
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2679 * The daemon is responsible for calling the callbacks for a message when appropriate. |
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2680 * |
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2681 * |
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2682 * The dispatch module has two main roles: |
e5af94b04946
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2683 * - help determine if a message can be handled locally (during the routing step) |
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2684 * This decision involves only the application-id of the message. |
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2685 * - pass the message to the callback(s) that will handle it (during the dispatch step) |
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2686 * |
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2687 * The first role is handled by the daemon. |
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2688 * |
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2689 * About the second, these are the possibilities for registering a dispatch callback: |
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2690 * |
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2691 * -> For All messages. |
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2692 * This callback is called for all messages that are handled locally. This should be used only |
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2693 * for debug purpose. |
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2694 * |
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2695 * -> by AVP value (constants only). |
e5af94b04946
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2696 * This callback will be called when a message is received and contains an AVP with a specified enumerated value. |
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2697 * |
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2698 * -> by AVP. |
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2699 * This callback will be called when the received message contains a certain AVP. |
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2700 * |
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2701 * -> by command-code. |
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2702 * This callback will be called when the message is a specific command (and 'R' flag). |
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2703 * |
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2704 * -> by application. |
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2705 * This callback will be called when the message has a specific application-id. |
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2706 * |
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2707 * ( by vendor: would this be useful? it may be added later) |
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2708 */ |
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2709 enum disp_how { |
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2710 DISP_HOW_ANY = 1, /* Any message. This should be only used for debug. */ |
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2711 DISP_HOW_APPID, /* Any message with the specified application-id */ |
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2712 DISP_HOW_CC, /* Messages of the specified command-code (request or answer). App id may be specified. */ |
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2713 DISP_HOW_AVP, /* Messages containing a specific AVP. Command-code and App id may be specified. */ |
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2714 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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2715 }; |
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2716 /* |
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2717 * Several criteria may be selected at the same time, for example command-code AND application id. |
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2718 * |
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2719 * If several callbacks are registered for the same object, they are called in the order they were registered. |
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2720 * The order in which the callbacks are called is: |
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2721 * DISP_HOW_ANY |
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2722 * DISP_HOW_AVP_ENUMVAL & DISP_HOW_AVP |
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2723 * DISP_HOW_CC |
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2724 * DISP_HOW_APPID |
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2725 */ |
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2726 |
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2727 /* When a callback is registered, a "when" argument is passed in addition to the disp_how value, |
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2728 * to specify which values the criteria must match. */ |
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2729 struct disp_when { |
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2730 struct dict_object * app; |
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2731 struct dict_object * command; |
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2732 struct dict_object * avp; |
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2733 struct dict_object * value; |
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2734 }; |
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2735 |
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2736 /* Note that all the dictionary objects should really belong to the same dictionary! |
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2737 * |
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2738 * Here is the details on this "when" argument, depending on the disp_how value. |
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2739 * |
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2740 * DISP_HOW_ANY. |
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2741 * In this case, "when" must be NULL. |
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2742 * |
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2743 * DISP_HOW_APPID. |
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2744 * 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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2745 * |
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2746 * DISP_HOW_CC. |
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2747 * The "command" field must be defined and point to a dictionary object of type DICT_COMMAND. |
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2748 * 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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2749 * The other fields are ignored. |
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2750 * |
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2751 * DISP_HOW_AVP. |
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2752 * The "avp" field of the structure must be set and point to a dictionary object of type DICT_AVP. |
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2753 * The "app_id" field may be set to restrict the messages matching to a specific app id. |
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2754 * The "command" field may also be set to a valid DICT_COMMAND object. |
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2755 * The content of the "value" field is ignored. |
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2756 * |
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2757 * DISP_HOW_AVP_ENUMVAL. |
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2758 * All fields have the same constraints and meaning as in DISP_REG_AVP. In addition, the "value" field must be set |
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2759 * and points to a valid DICT_ENUMVAL object. |
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2760 * |
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2761 * 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
|
2762 * field: app_id command avp value |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2763 * APPID : M 0 0 0 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2764 * CC : m M 0 0 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2765 * AVP : m m M 0 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2766 * ENUMVA: m m M M |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2767 */ |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2768 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2769 enum disp_action { |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2770 DISP_ACT_CONT, /* The next handler should be called, unless *msg == NULL. */ |
90
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2771 DISP_ACT_SEND, /* The updated message must be sent. No further callback is called. */ |
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
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|
2772 DISP_ACT_ERROR /* An error must be created and sent as a reply -- not valid for callbacks, only for fd_msg_dispatch. */ |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2773 }; |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2774 /* The callbacks that are registered have the following prototype: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2775 * 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
changeset
|
2776 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2777 * CALLBACK: dispatch_callback |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2778 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2779 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2780 * 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
changeset
|
2781 * avp : for callbacks registered with DISP_HOW_AVP or DISP_HOW_AVP_ENUMVAL, direct link to the triggering AVP. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2782 * session : if the message contains a Session-Id AVP, the corresponding session object, NULL otherwise. |
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2783 * opaque : An opaque pointer that is registered along the session handler. |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2784 * action : upon return, this tells the daemon what to do next. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2785 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2786 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2787 * Called when a received message matchs the condition for which the callback was registered. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2788 * This callback may do any kind of processing on the message, including: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2789 * - create an answer for a request. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2790 * - proxy a request or message, add / remove the Proxy-Info AVP, then forward the message. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2791 * - update a routing table or start a connection with a new peer, then forward the message. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2792 * - ... |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2793 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2794 * When *action == DISP_ACT_SEND on callback return, the msg pointed by *msg is passed to the routing module for sending. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2795 * When *action == DISP_ACT_CONT, the next registered callback is called. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2796 * When the last callback gives also DISP_ACT_CONT action value, a default handler is called. It's behavior is as follow: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2797 * - if the message is an answer, it is discarded. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2798 * - if the message is a request, it is passed again to the routing stack, and marked as non-local handling. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2799 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2800 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2801 * 0 : The callback executed successfully and updated *action appropriately. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2802 * !0 : standard errors. In case of error, the message is discarded. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2803 */ |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2804 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2805 /* This structure represents a handler for a registered callback, allowing its de-registration */ |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2806 struct disp_hdl; |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2807 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2808 /* |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2809 * FUNCTION: fd_disp_register |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2810 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2811 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2812 * cb : The callback function to register (see dispatch_callback description above). |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2813 * how : How the callback must be registered. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2814 * 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
|
2815 * opaque : A pointer that is passed back to the handler. The content is not interpreted by the framework. |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2816 * 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
|
2817 * This handler can be used to unregister the cb. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2818 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2819 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2820 * Register a new callback to handle messages delivered locally. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2821 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2822 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2823 * 0 : The callback is registered. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2824 * EINVAL : A parameter is invalid. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2825 * ENOMEM : Not enough memory to complete the operation |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2826 */ |
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
|
2827 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
|
2828 enum disp_how how, struct disp_when * when, void * opaque, struct disp_hdl ** handle ); |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2829 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2830 /* |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2831 * FUNCTION: fd_disp_unregister |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2832 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2833 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2834 * handle : Location of the handle of the callback that must be unregistered. |
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
2835 * opaque : If not NULL, the opaque data that was registered is restored here. |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2836 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2837 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2838 * Removes a callback previously registered by fd_disp_register. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2839 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2840 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2841 * 0 : The callback is unregistered. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2842 * EINVAL : A parameter is invalid. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2843 */ |
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
|
2844 int fd_disp_unregister ( struct disp_hdl ** handle, void ** opaque ); |
7
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2845 |
90
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2846 /* Destroy all handlers */ |
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
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|
2847 void fd_disp_unregister_all ( void ); |
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2848 |
7
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2849 /* |
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2850 * FUNCTION: fd_msg_dispatch |
e5af94b04946
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6
diff
changeset
|
2851 * |
e5af94b04946
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6
diff
changeset
|
2852 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
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parents:
6
diff
changeset
|
2853 * msg : A msg object that have already been fd_msg_parse_dict. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
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6
diff
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|
2854 * session : The session corresponding to this object, if any. |
e5af94b04946
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6
diff
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|
2855 * action : Upon return, the action that must be taken on the message |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
changeset
|
2856 * error_code : Upon return with action == DISP_ACT_ERROR, contains the error (such as "DIAMETER_UNABLE_TO_COMPLY") |
7
e5af94b04946
Added dispatch module and tests
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6
diff
changeset
|
2857 * |
e5af94b04946
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parents:
6
diff
changeset
|
2858 * DESCRIPTION: |
e5af94b04946
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6
diff
changeset
|
2859 * Call all handlers registered for a given message. |
e5af94b04946
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6
diff
changeset
|
2860 * The session must have already been resolved on entry. |
e5af94b04946
Added dispatch module and tests
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6
diff
changeset
|
2861 * The msg pointed may be updated during this process. |
e5af94b04946
Added dispatch module and tests
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6
diff
changeset
|
2862 * Upon return, the action parameter points to what must be done next. |
e5af94b04946
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parents:
6
diff
changeset
|
2863 * |
e5af94b04946
Added dispatch module and tests
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parents:
6
diff
changeset
|
2864 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
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6
diff
changeset
|
2865 * 0 : Success. |
e5af94b04946
Added dispatch module and tests
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parents:
6
diff
changeset
|
2866 * EINVAL : A parameter is invalid. |
e5af94b04946
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6
diff
changeset
|
2867 * (other errors) |
e5af94b04946
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6
diff
changeset
|
2868 */ |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2869 int fd_msg_dispatch ( struct msg ** msg, struct session * session, enum disp_action *action, char ** error_code ); |
7
e5af94b04946
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6
diff
changeset
|
2870 |
e5af94b04946
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6
diff
changeset
|
2871 |
0 | 2872 |
2873 /*============================================================*/ | |
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2874 /* QUEUES */ |
0 | 2875 /*============================================================*/ |
2876 | |
8
3e143f047f78
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parents:
7
diff
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|
2877 /* Management of FIFO queues of elements */ |
0 | 2878 |
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2879 /* A queue is an opaque object */ |
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2880 struct fifo; |
0 | 2881 |
2882 /* | |
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2883 * FUNCTION: fd_fifo_new |
0 | 2884 * |
2885 * PARAMETERS: | |
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2886 * queue : Upon success, a pointer to the new queue is saved here. |
767
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Added a limit on fifo queues to avoid memory exaustion when messages are received faster than handled
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2887 * max : max number of items in the queue. Above this number, adding a new item becomes a |
c47c16436f71
Added a limit on fifo queues to avoid memory exaustion when messages are received faster than handled
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2888 * blocking operation. Use 0 to disable this maximum. |
0 | 2889 * |
2890 * DESCRIPTION: | |
8
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2891 * Create a new empty queue. |
0 | 2892 * |
2893 * RETURN VALUE : | |
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2894 * 0 : The queue has been initialized successfully. |
0 | 2895 * EINVAL : The parameter is invalid. |
2896 * ENOMEM : Not enough memory to complete the creation. | |
2897 */ | |
767
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Added a limit on fifo queues to avoid memory exaustion when messages are received faster than handled
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2898 int fd_fifo_new ( struct fifo ** queue, int max ); |
0 | 2899 |
2900 /* | |
8
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2901 * FUNCTION: fd_fifo_del |
0 | 2902 * |
2903 * PARAMETERS: | |
8
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2904 * queue : Pointer to an empty queue to delete. |
0 | 2905 * |
2906 * DESCRIPTION: | |
8
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2907 * Destroys a queue. This is only possible if no thread is waiting for an element, |
0 | 2908 * and the queue is empty. |
2909 * | |
2910 * RETURN VALUE: | |
8
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2911 * 0 : The queue has been destroyed successfully. |
0 | 2912 * EINVAL : The parameter is invalid. |
2913 */ | |
8
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2914 int fd_fifo_del ( struct fifo ** queue ); |
0 | 2915 |
2916 /* | |
25
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2917 * FUNCTION: fd_fifo_move |
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2918 * |
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2919 * PARAMETERS: |
653
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2920 * oldq : Location of a FIFO that is to be emptied. |
34373acfbc6a
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2921 * newq : A FIFO that will receive the old data. |
25
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2922 * loc_update : if non NULL, a place to store the pointer to new FIFO atomically with the move. |
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2923 * |
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2924 * DESCRIPTION: |
43
2db15632a63d
Added a large part of connection establishment logic, to test
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2925 * Empties a queue and move its content to another one atomically. |
25
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2926 * |
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2927 * RETURN VALUE: |
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2928 * 0 : The queue has been destroyed successfully. |
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2929 * EINVAL : A parameter is invalid. |
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2930 */ |
653
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Added sample C++ file in _sample extension
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2931 int fd_fifo_move ( struct fifo * oldq, struct fifo * newq, struct fifo ** loc_update ); |
25
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2932 |
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2933 /* |
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2934 * FUNCTION: fd_fifo_length |
0 | 2935 * |
2936 * PARAMETERS: | |
8
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2937 * queue : The queue from which to retrieve the number of elements. |
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2938 * length : Upon success, the current number of elements in the queue is stored here. |
0 | 2939 * |
2940 * DESCRIPTION: | |
8
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2941 * Retrieve the number of elements in a queue. |
0 | 2942 * |
2943 * RETURN VALUE: | |
2944 * 0 : The length of the queue has been written. | |
2945 * EINVAL : A parameter is invalid. | |
2946 */ | |
8
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2947 int fd_fifo_length ( struct fifo * queue, int * length ); |
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2948 int fd_fifo_length_noerr ( struct fifo * queue ); /* no error checking version */ |
0 | 2949 |
2950 /* | |
8
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2951 * FUNCTION: fd_fifo_setthrhd |
0 | 2952 * |
2953 * PARAMETERS: | |
2954 * queue : The queue for which the thresholds are being set. | |
2955 * data : An opaque pointer that is passed to h_cb and l_cb callbacks. | |
2956 * high : The high-level threshold. If the number of elements in the queue increase to this value, h_cb is called. | |
2957 * h_cb : if not NULL, a callback to call when the queue lengh is bigger than "high". | |
2958 * low : The low-level threshold. Must be < high. | |
2959 * l_cb : If the number of elements decrease to low, this callback is called. | |
2960 * | |
2961 * DESCRIPTION: | |
2962 * This function allows to adjust the number of producer / consumer threads of a queue. | |
8
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2963 * If the consumer are slower than the producers, the number of elements in the queue increase. |
0 | 2964 * By setting a "high" value, we allow a callback to be called when this number is too high. |
2965 * The typical use would be to create an additional consumer thread in this callback. | |
2966 * 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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2967 * (the callback itself should implement a limit on the number of consumers that can be created) |
0 | 2968 * 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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2969 * 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 | 2970 * and so on. |
2971 * | |
2972 * Since there is no destructor for the data pointer, if cleanup operations are required, they should be performed in | |
2973 * l_cb when the length of the queue is becoming < low. | |
2974 * | |
8
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2975 * Note that the callbacks are called synchronously, during fd_fifo_post or fd_fifo_get. Their operation should be quick. |
0 | 2976 * |
2977 * RETURN VALUE: | |
2978 * 0 : The thresholds have been set | |
2979 * EINVAL : A parameter is invalid. | |
2980 */ | |
8
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|
2981 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 | 2982 |
2983 /* | |
8
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2984 * FUNCTION: fd_fifo_post |
0 | 2985 * |
2986 * PARAMETERS: | |
8
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2987 * queue : The queue in which the element must be posted. |
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2988 * item : The element that is put in the queue. |
0 | 2989 * |
2990 * DESCRIPTION: | |
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2991 * An element is added in a queue. Elements are retrieved from the queue in FIFO order |
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2992 * with the fd_fifo_get, fd_fifo_tryget, or fd_fifo_timedget functions. |
0 | 2993 * |
2994 * RETURN VALUE: | |
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2995 * 0 : The element is queued. |
0 | 2996 * EINVAL : A parameter is invalid. |
2997 * ENOMEM : Not enough memory to complete the operation. | |
2998 */ | |
8
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2999 int fd_fifo_post_int ( struct fifo * queue, void ** item ); |
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3000 #define fd_fifo_post(queue, item) \ |
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3001 fd_fifo_post_int((queue), (void *)(item)) |
0 | 3002 |
3003 /* | |
8
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3004 * FUNCTION: fd_fifo_get |
0 | 3005 * |
3006 * PARAMETERS: | |
8
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3007 * queue : The queue from which the first element must be retrieved. |
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3008 * item : On return, the first element of the queue is stored here. |
0 | 3009 * |
3010 * DESCRIPTION: | |
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3011 * This function retrieves the first element from a queue. If the queue is empty, the function will block the |
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3012 * thread until a new element is posted to the queue, or until the thread is canceled (in which case the |
0 | 3013 * function does not return). |
3014 * | |
3015 * RETURN VALUE: | |
8
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3016 * 0 : A new element has been retrieved. |
0 | 3017 * EINVAL : A parameter is invalid. |
3018 */ | |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
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|
3019 int fd_fifo_get_int ( struct fifo * queue, void ** item ); |
8
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3020 #define fd_fifo_get(queue, item) \ |
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3021 fd_fifo_get_int((queue), (void *)(item)) |
0 | 3022 |
3023 /* | |
8
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3024 * FUNCTION: fd_fifo_tryget |
0 | 3025 * |
3026 * PARAMETERS: | |
8
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3027 * 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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3028 * item : On return, the first element of the queue is stored here. |
0 | 3029 * |
3030 * DESCRIPTION: | |
8
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3031 * This function is similar to fd_fifo_get, except that it will not block if |
0 | 3032 * the queue is empty, but return EWOULDBLOCK instead. |
3033 * | |
3034 * RETURN VALUE: | |
8
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3035 * 0 : A new element has been retrieved. |
0 | 3036 * EINVAL : A parameter is invalid. |
3037 * EWOULDBLOCK : The queue was empty. | |
3038 */ | |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
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|
3039 int fd_fifo_tryget_int ( struct fifo * queue, void ** item ); |
8
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3040 #define fd_fifo_tryget(queue, item) \ |
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3041 fd_fifo_tryget_int((queue), (void *)(item)) |
0 | 3042 |
3043 /* | |
8
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3044 * FUNCTION: fd_fifo_timedget |
0 | 3045 * |
3046 * PARAMETERS: | |
8
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3047 * queue : The queue from which the element must be retrieved. |
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3048 * item : On return, the element is stored here. |
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3049 * abstime : the absolute time until which we allow waiting for an item. |
0 | 3050 * |
3051 * DESCRIPTION: | |
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3052 * This function is similar to fd_fifo_get, except that it will block if the queue is empty |
0 | 3053 * only until the absolute time abstime (see pthread_cond_timedwait for + info). |
3054 * If the queue is still empty when the time expires, the function returns ETIMEDOUT | |
3055 * | |
3056 * RETURN VALUE: | |
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3057 * 0 : A new item has been retrieved. |
0 | 3058 * EINVAL : A parameter is invalid. |
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3059 * ETIMEDOUT : The time out has passed and no item has been received. |
0 | 3060 */ |
620
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3061 int fd_fifo_timedget_int ( struct fifo * queue, void ** item, const struct timespec *abstime ); |
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3062 #define fd_fifo_timedget(queue, item, abstime) \ |
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3063 fd_fifo_timedget_int((queue), (void *)(item), (abstime)) |
0 | 3064 |
10
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3065 /* Dump a fifo list and optionally its inner elements -- beware of deadlocks! */ |
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|
3066 void fd_fifo_dump(int level, char * name, struct fifo * queue, void (*dump_item)(int level, void * item)); |
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3067 |
904
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diff
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|
3068 #ifdef __cplusplus |
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3069 } |
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|
3070 #endif |
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3071 |
658
f198d16fa7f4
Initial commit for 1.1.0:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
653
diff
changeset
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3072 #endif /* _LIBFDPROTO_H */ |