Mercurial > hg > freeDiameter
annotate include/freeDiameter/libfdproto.h @ 992:80584f0e851a
Copy by default the Proxy-Info AVP included in requests into the answers. Use MSGFL_ANSW_NOPROXYINFO to ignore. This code has not been tested yet.
author | Sebastien Decugis <sdecugis@freediameter.net> |
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date | Sun, 17 Mar 2013 16:22:32 +0100 |
parents | ee8ea5303489 |
children | ad6c1ee04d2d |
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) 2013, WIDE Project and NICT * |
0 | 6 * All rights reserved. * |
7 * * | |
8 * Redistribution and use of this software in source and binary forms, with or without modification, are * | |
9 * permitted provided that the following conditions are met: * | |
10 * * | |
11 * * Redistributions of source code must retain the above * | |
12 * copyright notice, this list of conditions and the * | |
13 * following disclaimer. * | |
14 * * | |
15 * * Redistributions in binary form must reproduce the above * | |
16 * copyright notice, this list of conditions and the * | |
17 * following disclaimer in the documentation and/or other * | |
18 * materials provided with the distribution. * | |
19 * * | |
20 * * Neither the name of the WIDE Project or NICT nor the * | |
21 * names of its contributors may be used to endorse or * | |
22 * promote products derived from this software without * | |
23 * specific prior written permission of WIDE Project and * | |
24 * NICT. * | |
25 * * | |
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED * | |
27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * | |
28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * | |
29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * | |
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * | |
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * | |
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32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY S_OUT OF THE USE OF THIS SOFTWARE, EVEN IF * |
0 | 33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * |
34 *********************************************************************************************************/ | |
35 | |
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36 /* This file contains the definitions of functions and types used by the libfreeDiameter library. |
0 | 37 * |
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38 * This library is meant to be used by both the freeDiameter daemon and its extensions. |
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39 * It provides the tools to manipulate Diameter messages and related data. |
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40 * This file should always be included as #include <freeDiameter/libfreeDiameter.h> |
0 | 41 * |
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42 * If any change is made to this file, you must increment the FD_PROJECT_VERSION_API version. |
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43 * |
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44 * The file contains the following parts: |
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45 * DEBUG |
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46 * MACROS |
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47 * OCTET STRINGS |
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48 * THREADS |
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49 * LISTS |
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50 * DICTIONARY |
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51 * SESSIONS |
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52 * MESSAGES |
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53 * DISPATCH |
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54 * QUEUES |
0 | 55 */ |
56 | |
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57 #ifndef _LIBFDPROTO_H |
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58 #define _LIBFDPROTO_H |
0 | 59 |
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60 #ifdef __cplusplus |
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61 extern "C" { |
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62 #endif |
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63 |
0 | 64 #ifndef FD_IS_CONFIG |
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65 #error "You must include 'freeDiameter-host.h' before this file." |
0 | 66 #endif /* FD_IS_CONFIG */ |
67 | |
68 #include <pthread.h> | |
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69 #include <sched.h> |
0 | 70 #include <string.h> |
71 #include <assert.h> | |
72 #include <errno.h> | |
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73 #include <netinet/in.h> |
0 | 74 #include <arpa/inet.h> |
75 #include <sys/socket.h> | |
76 #include <netdb.h> | |
77 #include <stdio.h> | |
78 #include <stdlib.h> | |
79 #include <unistd.h> | |
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80 #include <stdarg.h> |
0 | 81 |
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82 #ifdef DEBUG |
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83 #include <libgen.h> /* for basename if --dbg_file is specified */ |
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84 #endif /* DEBUG */ |
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85 |
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86 |
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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 |
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114 * MACRO: fd_log_notice |
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115 * MACRO: fd_log_error |
0 | 116 * |
117 * PARAMETERS: | |
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118 * loglevel : Integer, how important the message is |
0 | 119 * format : Same format string as in the printf function |
120 * ... : Same list as printf | |
121 * | |
122 * DESCRIPTION: | |
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123 * Write information to log. |
0 | 124 * The format and arguments may contain UTF-8 encoded data. The |
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125 * output medium is expected to support this encoding. |
0 | 126 * |
127 * RETURN VALUE: | |
128 * None. | |
129 */ | |
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130 void fd_log ( int, const char *, ... ); |
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131 #define fd_log_debug(format,args...) fd_log(FD_LOG_DEBUG, format, ## args) |
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132 #define fd_log_notice(format,args...) fd_log(FD_LOG_NOTICE, format, ## args) |
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133 #define fd_log_error(format,args...) fd_log(FD_LOG_ERROR, format, ## args) |
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134 |
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135 void fd_log_debug_fstr( FILE *, const char *, ... ); |
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136 |
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137 /* these are internal objects of the debug facility, |
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138 might be useful to control the behavior from outside */ |
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140 extern char * fd_debug_one_function; |
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141 extern char * fd_debug_one_file; |
0 | 142 |
143 /* | |
144 * FUNCTION: fd_log_threadname | |
145 * | |
146 * PARAMETERS: | |
147 * name : \0-terminated string containing a name to identify the current thread. | |
148 * | |
149 * DESCRIPTION: | |
150 * Name the current thread, useful for debugging multi-threaded problems. | |
151 * | |
152 * This function assumes that a global thread-specific key called "fd_log_thname" exists | |
153 * in the address space of the current process. | |
154 * | |
155 * RETURN VALUE: | |
156 * None. | |
157 */ | |
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158 void fd_log_threadname ( const char * name ); |
0 | 159 extern pthread_key_t fd_log_thname; |
160 | |
161 /* | |
162 * FUNCTION: fd_log_time | |
163 * | |
164 * PARAMETERS: | |
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165 * ts : The timestamp to log, or NULL for "now" |
0 | 166 * buf : An array where the time must be stored |
167 * len : size of the buffer | |
168 * | |
169 * DESCRIPTION: | |
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170 * Writes the timestamp (in human readable format) in a buffer. |
0 | 171 * |
172 * RETURN VALUE: | |
173 * pointer to buf. | |
174 */ | |
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175 char * fd_log_time ( struct timespec * ts, char * buf, size_t len ); |
0 | 176 |
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177 /* |
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178 * FUNCTION: fd_log_handler_register |
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179 * MACRO: |
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180 * |
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181 * PARAMETERS: |
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182 * loglevel : priority of the message |
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183 * format : Same format string as in the printf function |
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184 * va_list : Argument list |
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185 * |
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186 * DESCRIPTION: |
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187 * Register an external method for logging purposes. |
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188 * |
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189 * RETURN VALUE: |
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190 * int : Success or failure |
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191 */ |
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192 int fd_log_handler_register ( void (*logger)(int loglevel, const char * format, va_list args) ); |
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193 |
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194 /* |
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195 * FUNCTION: fd_log_handler_unregister |
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196 * MACRO: |
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197 * |
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198 * PARAMETERS: |
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199 * |
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200 * DESCRIPTION: |
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201 * Unregister the external logging function. |
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202 * |
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203 * RETURN VALUE: |
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204 * int : Success or failure |
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205 */ |
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206 int fd_log_handler_unregister ( void ); |
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207 |
0 | 208 |
226
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209 /*============================================================*/ |
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210 /* DEBUG MACROS */ |
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211 /*============================================================*/ |
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212 |
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213 #ifndef ASSERT |
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214 #define ASSERT(x) assert(x) |
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215 #endif /* ASSERT */ |
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216 |
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217 /* log levels definitions */ |
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218 #define FD_LOG_DEBUG 0 /* Verbose information for developers use */ |
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219 #define FD_LOG_NOTICE 3 /* Normal execution states worth noting */ |
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220 #define FD_LOG_ERROR 5 /* Error conditions, both recoverable or not */ |
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221 |
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222 /* print level definitions */ |
0 | 223 #define NONE 0 /* Display no debug message */ |
224 #define INFO 1 /* Display errors only */ | |
225 #define FULL 2 /* Display additional information to follow code execution */ | |
226 #define ANNOYING 4 /* Very verbose, for example in loops */ | |
227 #define FCTS 6 /* Display entry parameters of most functions */ | |
228 #define CALL 9 /* Display calls to most functions (with CHECK macros) */ | |
229 | |
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230 /* A global level, changed by configuration or cmd line for example. Default is INFO (in libfdproto/log.c). */ |
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231 extern int fd_g_debug_lvl; |
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232 |
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233 /* Some portability code to get nice function name in __PRETTY_FUNCTION__ */ |
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234 #if (!defined( __func__)) && (__STDC_VERSION__ < 199901L) |
0 | 235 # if __GNUC__ >= 2 |
236 # define __func__ __FUNCTION__ | |
237 # else /* __GNUC__ >= 2 */ | |
238 # define __func__ "<unknown>" | |
239 # endif /* __GNUC__ >= 2 */ | |
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240 #endif /*(!defined( __func__)) && (__STDC_VERSION__ < 199901L) */ |
0 | 241 #ifndef __PRETTY_FUNCTION__ |
242 #define __PRETTY_FUNCTION__ __func__ | |
243 #endif /* __PRETTY_FUNCTION__ */ | |
244 | |
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245 #ifdef DEBUG |
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246 /* A version of __FILE__ without the full path */ |
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247 static char * file_bname = NULL; |
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248 #define __STRIPPED_FILE__ (file_bname ?: (file_bname = basename((char *)__FILE__))) |
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249 |
0 | 250 /* Boolean for tracing at a certain level */ |
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251 #define TRACE_BOOL(_level_) ( ((_level_) <= fd_g_debug_lvl) \ |
174
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252 || (fd_debug_one_function && !strcmp(fd_debug_one_function, __PRETTY_FUNCTION__)) \ |
205
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253 || (fd_debug_one_file && !strcmp(fd_debug_one_file, __STRIPPED_FILE__) ) ) |
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254 #else /* DEBUG */ |
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255 #define TRACE_BOOL(_level_) ((_level_) <= fd_g_debug_lvl) |
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256 #endif /* DEBUG */ |
0 | 257 |
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258 |
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259 #define STD_TRACE_FMT_STRING "pid:%s in %s@%s:%d: " |
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260 /************* |
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261 The general debug macro, each call results in two lines of debug messages (change the macro for more compact output) |
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262 *************/ |
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263 #ifdef DEBUG |
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264 /* In DEBUG mode, we add (a lot of) meta-information along each trace. This makes multi-threading problems easier to debug. */ |
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265 #define TRACE(printlevel,level,format,args... ) { \ |
0 | 266 if ( TRACE_BOOL(level) ) { \ |
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267 const char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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268 fd_log((printlevel), STD_TRACE_FMT_STRING format, \ |
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269 __thn, __PRETTY_FUNCTION__, __STRIPPED_FILE__, __LINE__, ## args); \ |
0 | 270 } \ |
271 } | |
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272 #else /* DEBUG */ |
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273 /* Do not print thread, function, ... only the message itself in this case */ |
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274 #define TRACE(printlevel,level,format,args... ) { \ |
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275 if ( TRACE_BOOL(level) ) { \ |
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276 fd_log((printlevel), format, ## args); \ |
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277 } \ |
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278 } |
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279 #endif /* DEBUG */ |
0 | 280 |
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281 /* Report debug information */ |
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282 #define TRACE_DEBUG(level,format,args... ) \ |
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283 TRACE(FD_LOG_DEBUG,(level),format,##args) |
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284 |
972 | 285 /* Report a normal message that is useful for normal admin monitoring */ |
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286 #define TRACE_NOTICE(format,args... ) \ |
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287 TRACE(FD_LOG_NOTICE,INFO,format,##args) |
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288 |
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289 /* Report an error */ |
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290 #define TRACE_ERROR(format,args... ) \ |
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291 TRACE(FD_LOG_ERROR, NONE, format, ##args) |
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292 |
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293 /* |
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294 TRACE_NOTICE(...) and fd_log_notice(...) are equivalent when the code is not compiled in DEBUG mode, |
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295 but there is more contextual information when compiled in DEBUG with the TRACE_NOTICE macro, |
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296 hence it is recommended to use this one except for formatted output (e.g. fd_*_dump function) |
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297 |
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298 resp. TRACE_DEBUG and TRACE_ERROR. |
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299 */ |
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300 |
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301 /************* |
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302 Derivatives for debug |
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303 ************/ |
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304 /* Helper for function entry -- for very detailed trace of the execution */ |
0 | 305 #define TRACE_ENTRY(_format,_args... ) \ |
29
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306 TRACE_DEBUG(FCTS, "[enter] %s(" _format ") {" #_args "}", __PRETTY_FUNCTION__, ##_args ); |
0 | 307 |
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308 /* Helper for debugging by adding traces -- for debuging a specific location of the code */ |
0 | 309 #define TRACE_HERE() \ |
183
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310 TRACE_DEBUG(NONE, " -- debug checkpoint %d -- ", fd_breakhere()); |
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311 int fd_breakhere(void); |
0 | 312 |
972 | 313 /* Helper for tracing the CHECK_* macros below -- very very verbose code execution! */ |
0 | 314 #define TRACE_DEBUG_ALL( str ) \ |
315 TRACE_DEBUG(CALL, str ); | |
316 | |
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317 /* For development only, to keep track of TODO locations in the code */ |
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318 #ifndef ERRORS_ON_TODO |
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319 #define TODO( _msg, _args... ) \ |
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320 TRACE_DEBUG(NONE, "TODO: " _msg , ##_args); |
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321 #else /* ERRORS_ON_TODO */ |
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322 #define TODO( _msg, _args... ) \ |
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323 "TODO" = _msg ## _args; /* just a stupid compilation error to spot the todo */ |
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324 #endif /* ERRORS_ON_TODO */ |
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325 |
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326 /* Trace a binary buffer content */ |
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327 #ifdef DEBUG |
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328 /* In DEBUG mode, we add (a lot of) meta-information along each trace. This makes multi-threading problems easier to debug. */ |
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329 #define TRACE_BUFFER(printlevel, level, prefix, buf, bufsz, suffix ) { \ |
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330 if ( TRACE_BOOL(level) ) { \ |
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331 int __i; \ |
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332 size_t __sz = (size_t)(bufsz); \ |
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333 uint8_t * __buf = (uint8_t *)(buf); \ |
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334 char __strbuf[1024+1]; \ |
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335 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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336 for (__i = 0; (__i < __sz) && (__i<(sizeof(__strbuf)/2)); __i++) { \ |
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337 sprintf(__strbuf + (2 * __i), "%2.2hhx", __buf[__i]); \ |
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338 } \ |
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339 fd_log(printlevel, STD_TRACE_FMT_STRING "%s%s%s", \ |
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340 __thn, __PRETTY_FUNCTION__, __STRIPPED_FILE__, __LINE__, (prefix), __strbuf, (suffix)); \ |
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341 } \ |
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342 } |
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343 #else /* DEBUG */ |
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344 /* Do not print thread, function, ... only the message itself in this case */ |
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345 #define TRACE_BUFFER(printlevel, level, prefix, buf, bufsz, suffix ) { \ |
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346 if ( TRACE_BOOL(level) ) { \ |
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347 int __i; \ |
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348 size_t __sz = (size_t)(bufsz); \ |
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349 uint8_t * __buf = (uint8_t *)(buf); \ |
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350 char __strbuf[1024+1]; \ |
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351 for (__i = 0; (__i < __sz) && (__i<(sizeof(__strbuf)/2)); __i++) { \ |
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352 sprintf(__strbuf + (2 * __i), "%2.2hhx", __buf[__i]); \ |
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353 } \ |
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354 fd_log(printlevel, "%s%s%s", (prefix), __strbuf, (suffix)); \ |
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355 } \ |
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356 } |
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357 #endif /* DEBUG */ |
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358 |
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359 /* Some aliases to socket addresses structures */ |
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360 #define sSS struct sockaddr_storage |
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361 #define sSA struct sockaddr |
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362 #define sSA4 struct sockaddr_in |
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363 #define sSA6 struct sockaddr_in6 |
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364 |
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365 /* The sockaddr length of a sSS structure */ |
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366 #define sSAlen( _sa_ ) \ |
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367 ( (socklen_t) ( (((sSA *)_sa_)->sa_family == AF_INET) ? (sizeof(sSA4)) : \ |
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368 ((((sSA *)_sa_)->sa_family == AF_INET6) ? (sizeof(sSA6)) : \ |
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369 0 ) ) ) |
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370 |
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371 /* Dump one sockaddr Node information */ |
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372 #define sSA_DUMP_NODE( buf, bufsize, 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 if (__sa) { \ |
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376 int __rc = getnameinfo(__sa, \ |
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377 sSAlen(__sa), \ |
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378 __addrbuf, \ |
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379 sizeof(__addrbuf), \ |
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380 NULL, \ |
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381 0, \ |
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382 (flag)); \ |
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383 if (__rc) \ |
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384 snprintf(buf, bufsize, "%s", gai_strerror(__rc)); \ |
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385 else \ |
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386 snprintf(buf, bufsize, "%s", &__addrbuf[0]); \ |
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387 } else { \ |
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388 snprintf(buf, bufsize, "(NULL / ANY)"); \ |
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389 } \ |
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390 } |
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391 /* Same but with the port (service) also */ |
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392 #define sSA_DUMP_NODE_SERV( buf, bufsize, sa, flag ) { \ |
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393 sSA * __sa = (sSA *)(sa); \ |
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394 char __addrbuf[INET6_ADDRSTRLEN]; \ |
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395 char __servbuf[32]; \ |
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396 if (__sa) { \ |
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397 int __rc = getnameinfo(__sa, \ |
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398 sSAlen(__sa), \ |
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399 __addrbuf, \ |
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400 sizeof(__addrbuf), \ |
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401 __servbuf, \ |
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402 sizeof(__servbuf), \ |
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403 (flag)); \ |
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404 if (__rc) \ |
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405 snprintf(buf, bufsize, "%s", gai_strerror(__rc)); \ |
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406 else \ |
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407 snprintf(buf, bufsize, "[%s]:%s", &__addrbuf[0],&__servbuf[0]); \ |
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408 } else { \ |
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409 snprintf(buf, bufsize,"(NULL / ANY)"); \ |
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410 } \ |
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411 } |
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412 |
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413 #ifdef DEBUG |
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414 /* In DEBUG mode, we add (a lot of) meta-information along each trace. This makes multi-threading problems easier to debug. */ |
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415 #define TRACE_sSA(printlevel, level, prefix, sa, flags, suffix ) { \ |
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416 if ( TRACE_BOOL(level) ) { \ |
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417 char __buf[1024]; \ |
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418 char * __thn = ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"); \ |
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419 sSA_DUMP_NODE_SERV(__buf, sizeof(__buf), sa, flags ); \ |
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420 fd_log(printlevel, STD_TRACE_FMT_STRING "%s%s%s" , \ |
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421 __thn, __PRETTY_FUNCTION__, __STRIPPED_FILE__, __LINE__, (prefix), __buf, (suffix)); \ |
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422 } \ |
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423 } |
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424 #else /* DEBUG */ |
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425 /* Do not print thread, function, ... only the message itself in this case */ |
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426 #define TRACE_sSA(printlevel, level, prefix, sa, flags, suffix ) { \ |
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427 if ( TRACE_BOOL(level) ) { \ |
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428 char __buf[1024]; \ |
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429 sSA_DUMP_NODE_SERV(__buf, sizeof(__buf), sa, flags ); \ |
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430 fd_log(printlevel, "%s%s%s" , (prefix), __buf, (suffix)); \ |
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431 } \ |
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432 } |
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433 #endif /* DEBUG */ |
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434 |
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435 /****************** |
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436 Optimized code: remove all debugging code |
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437 **/ |
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438 #ifdef STRIP_DEBUG_CODE |
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439 #undef TRACE_DEBUG |
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440 #undef TRACE_NOTICE |
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441 #undef TRACE_ERROR |
594
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442 #undef TRACE_BOOL |
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443 #undef TRACE_BUFFER |
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444 #undef TRACE_sSA |
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445 |
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446 #define TRACE_DEBUG(level,format,args... ) /* noop */ |
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447 #define TRACE_BOOL(_level_) (0) /* always false */ |
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448 #define TRACE_NOTICE fd_log_notice |
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449 #define TRACE_ERROR fd_log_error |
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450 #define TRACE_BUFFER(printlevel, level, prefix, buf, bufsz, suffix ) { \ |
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451 if (printlevel > FD_LOG_DEBUG) { \ |
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452 int __i; \ |
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453 size_t __sz = (size_t)(bufsz); \ |
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454 uint8_t * __buf = (uint8_t *)(buf); \ |
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455 char * __strbuf[1024+1]; \ |
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456 for (__i = 0; (__i < __sz) && (__i<(sizeof(__strbuf)/2); __i++) { \ |
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457 sprintf(__strbuf + (2 * __i), "%02.2hhx", __buf[__i]); \ |
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458 } \ |
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459 fd_log(printlevel, prefix"%s"suffix, __strbuf); \ |
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460 } |
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461 #define TRACE_sSA(printlevel, level, prefix, sa, flags, suffix ) { \ |
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462 if (printlevel > FD_LOG_DEBUG) { \ |
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463 char __buf[1024]; \ |
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464 sSA_DUMP_NODE_SERV(__buf, sizeof(__buf), sa, flags ); \ |
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465 fd_log(printlevel, prefix "%s" suffix, __buf); \ |
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466 } |
594
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467 #endif /* STRIP_DEBUG_CODE */ |
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468 |
226
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469 |
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470 /*============================================================*/ |
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471 /* ERROR CHECKING MACRO */ |
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472 /*============================================================*/ |
0 | 473 |
474 /* Macros to check a return value and branch out in case of error. | |
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475 * These macro should be used only when errors are improbable, not for expected errors. |
0 | 476 */ |
477 | |
478 /* Check the return value of a system function and execute fallback in case of error */ | |
479 #define CHECK_SYS_DO( __call__, __fallback__ ) { \ | |
480 int __ret__; \ | |
481 TRACE_DEBUG_ALL( "Check SYS: " #__call__ ); \ | |
482 __ret__ = (__call__); \ | |
483 if (__ret__ < 0) { \ | |
484 int __err__ = errno; /* We may handle EINTR here */ \ | |
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485 TRACE_ERROR("ERROR: in '" #__call__ "' :\t%s", strerror(__err__));\ |
0 | 486 __fallback__; \ |
487 } \ | |
488 } | |
489 /* Check the return value of a system function, return error code on error */ | |
490 #define CHECK_SYS( __call__ ) { \ | |
491 int __ret__; \ | |
492 TRACE_DEBUG_ALL( "Check SYS: " #__call__ ); \ | |
493 __ret__ = (__call__); \ | |
494 if (__ret__ < 0) { \ | |
495 int __err__ = errno; /* We may handle EINTR here */ \ | |
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496 TRACE_ERROR("ERROR: in '" #__call__ "' :\t%s", strerror(__err__));\ |
0 | 497 return __err__; \ |
498 } \ | |
499 } | |
500 | |
501 /* Check the return value of a POSIX function and execute fallback in case of error or special value */ | |
502 #define CHECK_POSIX_DO2( __call__, __speval__, __fallback1__, __fallback2__ ) { \ | |
503 int __ret__; \ | |
504 TRACE_DEBUG_ALL( "Check POSIX: " #__call__ ); \ | |
505 __ret__ = (__call__); \ | |
506 if (__ret__ != 0) { \ | |
507 if (__ret__ == (__speval__)) { \ | |
508 __fallback1__; \ | |
509 } else { \ | |
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510 TRACE_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__ret__)); \ |
0 | 511 __fallback2__; \ |
512 } \ | |
513 } \ | |
514 } | |
515 | |
516 /* Check the return value of a POSIX function and execute fallback in case of error */ | |
517 #define CHECK_POSIX_DO( __call__, __fallback__ ) \ | |
518 CHECK_POSIX_DO2( (__call__), 0, , __fallback__ ); | |
519 | |
520 /* Check the return value of a POSIX function and return it if error */ | |
521 #define CHECK_POSIX( __call__ ) { \ | |
522 int __v__; \ | |
523 CHECK_POSIX_DO( __v__ = (__call__), return __v__ ); \ | |
524 } | |
525 | |
526 /* Check that a memory allocator did not return NULL, otherwise log an error and execute fallback */ | |
527 #define CHECK_MALLOC_DO( __call__, __fallback__ ) { \ | |
528 void * __ret__; \ | |
529 TRACE_DEBUG_ALL( "Check MALLOC: " #__call__ ); \ | |
530 __ret__ = (void *)( __call__ ); \ | |
531 if (__ret__ == NULL) { \ | |
532 int __err__ = errno; \ | |
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533 TRACE_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__err__)); \ |
0 | 534 __fallback__; \ |
535 } \ | |
536 } | |
537 | |
538 /* Check that a memory allocator did not return NULL, otherwise return ENOMEM */ | |
539 #define CHECK_MALLOC( __call__ ) \ | |
540 CHECK_MALLOC_DO( __call__, return ENOMEM ); | |
541 | |
542 | |
543 /* Check parameters at function entry, execute fallback on error */ | |
594
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544 #define CHECK_PARAMS_DO( __bool__, __fallback__ ) \ |
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545 TRACE_DEBUG_ALL( "Check PARAMS: " #__bool__ ); \ |
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546 if ( ! (__bool__) ) { \ |
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547 TRACE_ERROR("Warning: Invalid parameter received in '" #__bool__ "'"); \ |
594
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548 __fallback__; \ |
0 | 549 } |
550 /* Check parameters at function entry, return EINVAL if the boolean is false (similar to assert) */ | |
551 #define CHECK_PARAMS( __bool__ ) \ | |
552 CHECK_PARAMS_DO( __bool__, return EINVAL ); | |
553 | |
554 /* Check the return value of an internal function, log and propagate */ | |
555 #define CHECK_FCT_DO( __call__, __fallback__ ) { \ | |
556 int __ret__; \ | |
557 TRACE_DEBUG_ALL( "Check FCT: " #__call__ ); \ | |
558 __ret__ = (__call__); \ | |
559 if (__ret__ != 0) { \ | |
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560 TRACE_ERROR("ERROR: in '" #__call__ "':\t%s", strerror(__ret__)); \ |
0 | 561 __fallback__; \ |
562 } \ | |
563 } | |
564 /* Check the return value of a function call, return any error code */ | |
565 #define CHECK_FCT( __call__ ) { \ | |
566 int __v__; \ | |
567 CHECK_FCT_DO( __v__ = (__call__), return __v__ ); \ | |
568 } | |
569 | |
618
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570 |
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571 |
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572 /*============================================================*/ |
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573 /* OTHER MACROS */ |
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574 /*============================================================*/ |
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575 |
618
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576 |
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577 /* helper macros (pre-processor hacks to allow macro arguments) */ |
653
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578 #define __tostr( arg ) #arg |
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579 #define _stringize( arg ) __tostr( arg ) |
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580 #define __agr( arg1, arg2 ) arg1 ## arg2 |
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581 #define _aggregate( arg1, arg2 ) __agr( arg1, arg2 ) |
0 | 582 |
583 | |
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584 /* A l4 protocol name (TCP / SCTP) */ |
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585 #ifdef DISABLE_SCTP |
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586 #define IPPROTO_NAME( _proto ) \ |
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587 (((_proto) == IPPROTO_TCP) ? "TCP" : \ |
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588 "Unknown") |
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589 #else /* DISABLE_SCTP */ |
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590 #define IPPROTO_NAME( _proto ) \ |
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591 ( ((_proto) == IPPROTO_TCP) ? "TCP" : \ |
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592 (((_proto) == IPPROTO_SCTP) ? "SCTP" : \ |
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593 "Unknown")) |
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594 #endif /* DISABLE_SCTP */ |
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595 |
0 | 596 /* Define the value of IP loopback address */ |
597 #ifndef INADDR_LOOPBACK | |
598 #define INADDR_LOOPBACK inet_addr("127.0.0.1") | |
599 #endif /* INADDR_LOOPBACK */ | |
600 | |
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601 #ifndef INADDR_BROADCAST |
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602 #define INADDR_BROADCAST ((in_addr_t) 0xffffffff) |
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603 #endif /* INADDR_BROADCAST */ |
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604 |
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605 /* An IP equivalent to IN6_IS_ADDR_LOOPBACK */ |
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606 #ifndef IN_IS_ADDR_LOOPBACK |
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607 #define IN_IS_ADDR_LOOPBACK(a) \ |
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608 ((((long int) (a)->s_addr) & ntohl(0xff000000)) == ntohl(0x7f000000)) |
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609 #endif /* IN_IS_ADDR_LOOPBACK */ |
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610 |
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611 /* An IP equivalent to IN6_IS_ADDR_UNSPECIFIED */ |
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612 #ifndef IN_IS_ADDR_UNSPECIFIED |
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613 #define IN_IS_ADDR_UNSPECIFIED(a) \ |
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614 (((long int) (a)->s_addr) == 0x00000000) |
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615 #endif /* IN_IS_ADDR_UNSPECIFIED */ |
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616 |
0 | 617 /* create a V4MAPPED address */ |
618 #define IN6_ADDR_V4MAP( a6, a4 ) { \ | |
619 ((uint32_t *)(a6))[0] = 0; \ | |
620 ((uint32_t *)(a6))[1] = 0; \ | |
621 ((uint32_t *)(a6))[2] = htonl(0xffff); \ | |
622 ((uint32_t *)(a6))[3] = (uint32_t)(a4); \ | |
623 } | |
624 | |
625 /* Retrieve a v4 value from V4MAPPED address ( takes a s6_addr as param) */ | |
626 #define IN6_ADDR_V4UNMAP( a6 ) \ | |
627 (((in_addr_t *)(a6))[3]) | |
628 | |
629 | |
630 /* We provide macros to convert 64 bit values to and from network byte-order, on systems where it is not already provided. */ | |
226
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631 #ifndef HAVE_NTOHLL /* Defined by the cmake step, if the ntohll symbol is defined on the system */ |
0 | 632 # if HOST_BIG_ENDIAN |
633 /* In big-endian systems, we don't have to change the values, since the order is the same as network */ | |
634 # define ntohll(x) (x) | |
635 # define htonll(x) (x) | |
636 # else /* HOST_BIG_ENDIAN */ | |
637 /* For these systems, we must reverse the bytes. Use ntohl and htonl on sub-32 blocs, and inverse these blocs. */ | |
638 # define ntohll(x) (typeof (x))( (((uint64_t)ntohl( (uint32_t)(x))) << 32 ) | ((uint64_t) ntohl( ((uint64_t)(x)) >> 32 ))) | |
639 # define htonll(x) (typeof (x))( (((uint64_t)htonl( (uint32_t)(x))) << 32 ) | ((uint64_t) htonl( ((uint64_t)(x)) >> 32 ))) | |
640 # endif /* HOST_BIG_ENDIAN */ | |
641 #endif /* HAVE_NTOHLL */ | |
642 | |
3
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Progress; added session module; testsess to be completed
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643 /* This macro will give the next multiple of 4 for an integer (used for padding sizes of AVP). */ |
0 | 644 #define PAD4(_x) ((_x) + ( (4 - (_x)) & 3 ) ) |
645 | |
226
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646 /* Useful to display any value as (safe) ASCII (will garbage UTF-8 output...) */ |
0 | 647 #define ASCII(_c) ( ((_c < 32) || (_c > 127)) ? ( _c ? '?' : ' ' ) : _c ) |
648 | |
649 /* Compare timespec structures */ | |
650 #define TS_IS_INFERIOR( ts1, ts2 ) \ | |
651 ( ((ts1)->tv_sec < (ts2)->tv_sec ) \ | |
5
c2d2729e3603
Completed new session module tests; some bugs fixed
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652 || (((ts1)->tv_sec == (ts2)->tv_sec ) && ((ts1)->tv_nsec < (ts2)->tv_nsec) )) |
0 | 653 |
895
fbf77629cb7b
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654 /* Compute diff between two timespecs (pointers) */ |
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655 #define TS_DIFFERENCE( tsdiff, tsstart, tsend ) { \ |
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656 if ((tsend)->tv_nsec < (tsstart)->tv_nsec ) { \ |
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657 (tsdiff)->tv_sec = (tsend)->tv_sec - (tsstart)->tv_sec - 1; \ |
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658 (tsdiff)->tv_nsec = (tsend)->tv_nsec + 1000000000 - (tsstart)->tv_nsec; \ |
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659 } else { \ |
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diff
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660 (tsdiff)->tv_sec = (tsend)->tv_sec - (tsstart)->tv_sec; \ |
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661 (tsdiff)->tv_nsec = (tsend)->tv_nsec - (tsstart)->tv_nsec; \ |
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662 }} |
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663 |
fbf77629cb7b
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diff
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664 |
542
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
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diff
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665 /* This gives a good size for buffered reads */ |
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
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diff
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|
666 #ifndef BUFSIZ |
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diff
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667 #define BUFSIZ 96 |
0b6cee362f5d
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668 #endif /* BUFSIZ */ |
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
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diff
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669 |
706
4ffbc9f1e922
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670 /* This gives the length of a const string */ |
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Large UNTESTED commit with the following changes:
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671 #define CONSTSTRLEN( str ) (sizeof(str) - 1) |
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672 |
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673 |
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674 /*============================================================*/ |
836
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
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diff
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675 /* PORTABILITY */ |
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676 /*============================================================*/ |
da97a5aa7976
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diff
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677 #ifndef HAVE_CLOCK_GETTIME |
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678 #define CLOCK_REALTIME 0 |
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679 #include <sys/time.h> |
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680 int clock_gettime(int clk_id, struct timespec* ts); |
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681 #endif /* HAVE_CLOCK_GETTIME */ |
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|
682 |
849
d7f940afd933
New portability function: strndup
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diff
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|
683 #ifndef HAVE_STRNDUP |
850
12e7fcbc1b21
Fix previous commit
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diff
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|
684 char * strndup (char *str, size_t len); |
849
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New portability function: strndup
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|
685 #endif /* HAVE_STRNDUP */ |
836
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
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686 |
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Add replacement for clock_gettime (for Mac OS) -- ticket #38
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687 |
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
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688 /*============================================================*/ |
706
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689 /* BINARY STRINGS */ |
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690 /*============================================================*/ |
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691 |
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692 /* Compute a hash value of a binary string. |
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693 The hash must remain local to this machine, there is no guarantee that same input |
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694 will give same output on a different system (endianness) */ |
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695 uint32_t fd_os_hash ( uint8_t * string, size_t len ); |
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696 |
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697 /* This type used for binary strings that contain no \0 except as their last character. |
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698 It means some string operations can be used on it. */ |
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699 typedef uint8_t * os0_t; |
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700 |
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701 /* Same as strdup but for os0_t strings */ |
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702 os0_t os0dup_int(os0_t s, size_t l); |
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703 #define os0dup( _s, _l) (void *)os0dup_int((os0_t)(_s), _l) |
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704 |
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705 /* Check that an octet string value can be used as os0_t */ |
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706 static __inline__ int fd_os_is_valid_os0(uint8_t * os, size_t oslen) { |
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707 /* The only situation where it is not valid is when it contains a \0 inside the octet string */ |
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708 return (memchr(os, '\0', oslen) == NULL); |
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709 } |
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|
710 |
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711 /* The following type denotes a verified DiameterIdentity value (that contains only pure letters, digits, hyphen, dot) */ |
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Large UNTESTED commit with the following changes:
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diff
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|
712 typedef char * DiamId_t; |
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|
713 |
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Large UNTESTED commit with the following changes:
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714 /* Maximum length of a hostname we accept */ |
4ffbc9f1e922
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715 #ifndef HOST_NAME_MAX |
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716 #define HOST_NAME_MAX 512 |
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717 #endif /* HOST_NAME_MAX */ |
4ffbc9f1e922
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|
718 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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719 /* Check if a binary string contains a valid Diameter Identity value. |
4ffbc9f1e922
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diff
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|
720 rfc3588 states explicitely that such a Diameter Identity consists only of ASCII characters. */ |
4ffbc9f1e922
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721 int fd_os_is_valid_DiameterIdentity(uint8_t * os, size_t ossz); |
4ffbc9f1e922
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|
722 |
717
571b3abaa5df
Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
706
diff
changeset
|
723 /* The following function validates a string as a Diameter Identity or applies the IDNA transformation on it |
571b3abaa5df
Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
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diff
changeset
|
724 if *inoutsz is != 0 on entry, *id may not be \0-terminated. |
571b3abaa5df
Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
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diff
changeset
|
725 memory has the following meaning: 0: *id can be realloc'd. 1: *id must be malloc'd on output (was static) |
571b3abaa5df
Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
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diff
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|
726 */ |
571b3abaa5df
Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
706
diff
changeset
|
727 int fd_os_validate_DiameterIdentity(char ** id, size_t * inoutsz, int memory); |
706
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728 |
4ffbc9f1e922
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parents:
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|
729 /* Create an order relationship for binary strings (not needed to be \0 terminated). |
4ffbc9f1e922
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parents:
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diff
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|
730 It does NOT mimic strings relationships so that it is more efficient. It is case sensitive. |
4ffbc9f1e922
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parents:
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731 (the strings are actually first ordered by their lengh, then by their bytes contents) |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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732 returns: -1 if os1 < os2; +1 if os1 > os2; 0 if they are equal */ |
4ffbc9f1e922
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733 int fd_os_cmp_int(os0_t os1, size_t os1sz, os0_t os2, size_t os2sz); |
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734 #define fd_os_cmp(_o1, _l1, _o2, _l2) fd_os_cmp_int((os0_t)(_o1), _l1, (os0_t)(_o2), _l2) |
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735 |
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736 /* A roughly case-insensitive variant, which actually only compares ASCII chars (0-127) in a case-insentitive maneer |
738
d666051658bd
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diff
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737 -- it does not support locales where a lowercase letter uses more space than upper case, such as ? -> ss |
d666051658bd
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738 It is slower than fd_os_cmp. |
706
4ffbc9f1e922
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739 Note that the result is NOT the same as strcasecmp !!! |
738
d666051658bd
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parents:
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diff
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740 |
d666051658bd
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741 This function gives the same order as fd_os_cmp, except when it finds 2 strings to be equal. |
d666051658bd
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parents:
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742 However this is not always sufficient: |
d666051658bd
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parents:
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743 for example fd_os_cmp gives: "Ac" < "aB" < "aa" |
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744 if you attempt to fd_os_almostcasesrch "Aa" you will actually have to go past "aB" which is > "Aa". |
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745 Therefore you can use the maybefurther parameter. |
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746 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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747 and 0 if we are sure that it is not the case. |
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748 When looping through a list of fd_os_cmp classified values, this parameter must be used to stop looping, in addition to the comp result. |
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749 */ |
738
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750 int fd_os_almostcasesrch_int(uint8_t * os1, size_t os1sz, uint8_t * os2, size_t os2sz, int * maybefurther); |
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751 #define fd_os_almostcasesrch(_o1, _l1, _o2, _l2, _mb) fd_os_almostcasesrch_int((os0_t)(_o1), _l1, (os0_t)(_o2), _l2, _mb) |
0 | 752 |
717
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753 /* Analyze a DiameterURI and return its components. |
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754 Return EINVAL if the URI is not valid. |
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755 *diamid is malloc'd on function return and must be freed (it is processed by fd_os_validate_DiameterIdentity). |
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756 *secure is 0 (no security) or 1 (security enabled) on return. |
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757 *port is 0 (default) or a value in host byte order on return. |
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758 *transport is 0 (default) or IPPROTO_* on return. |
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759 *proto is 0 (default) or 'd' (diameter), 'r' (radius), or 't' (tacacs+) on return. |
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760 */ |
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761 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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762 |
0 | 763 /*============================================================*/ |
764 /* THREADS */ | |
765 /*============================================================*/ | |
766 | |
767 /* Terminate a thread */ | |
768 static __inline__ int fd_thr_term(pthread_t * th) | |
769 { | |
770 void * th_ret = NULL; | |
771 | |
772 CHECK_PARAMS(th); | |
773 | |
774 /* Test if it was already terminated */ | |
775 if (*th == (pthread_t)NULL) | |
776 return 0; | |
777 | |
778 /* Cancel the thread if it is still running - ignore error if it was already terminated */ | |
779 (void) pthread_cancel(*th); | |
780 | |
781 /* Then join the thread */ | |
183
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782 CHECK_POSIX( pthread_join(*th, &th_ret) ); |
0 | 783 |
181
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784 if (th_ret == PTHREAD_CANCELED) { |
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785 TRACE_DEBUG(ANNOYING, "The thread %p was canceled", *th); |
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786 } else { |
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787 TRACE_DEBUG(CALL, "The thread %p returned %x", *th, th_ret); |
0 | 788 } |
789 | |
790 /* Clean the location */ | |
791 *th = (pthread_t)NULL; | |
792 | |
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793 return 0; |
0 | 794 } |
795 | |
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796 |
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797 /************* |
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798 Cancelation cleanup handlers for common objects |
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799 *************/ |
0 | 800 static __inline__ void fd_cleanup_mutex( void * mutex ) |
801 { | |
802 CHECK_POSIX_DO( pthread_mutex_unlock((pthread_mutex_t *)mutex), /* */); | |
803 } | |
804 | |
805 static __inline__ void fd_cleanup_rwlock( void * rwlock ) | |
806 { | |
807 CHECK_POSIX_DO( pthread_rwlock_unlock((pthread_rwlock_t *)rwlock), /* */); | |
808 } | |
809 | |
810 static __inline__ void fd_cleanup_buffer( void * buffer ) | |
811 { | |
812 free(buffer); | |
813 } | |
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814 static __inline__ void fd_cleanup_socket(void * sockptr) |
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815 { |
191
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816 if (sockptr && (*(int *)sockptr > 0)) { |
179 | 817 CHECK_SYS_DO( close(*(int *)sockptr), /* ignore */ ); |
184 | 818 *(int *)sockptr = -1; |
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819 } |
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820 } |
0 | 821 |
235
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822 |
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823 /*============================================================*/ |
0 | 824 /* LISTS */ |
825 /*============================================================*/ | |
826 | |
827 /* The following structure represents a chained list element */ | |
828 struct fd_list { | |
829 struct fd_list *next; /* next element in the list */ | |
830 struct fd_list *prev; /* previous element in the list */ | |
831 struct fd_list *head; /* head of the list */ | |
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832 void *o; /* additional pointer, used for any purpose (ex: start of the parent object) */ |
0 | 833 }; |
834 | |
835 /* Initialize a list element */ | |
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836 #define FD_LIST_INITIALIZER( _list_name ) \ |
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837 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = NULL } |
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838 #define FD_LIST_INITIALIZER_O( _list_name, _obj ) \ |
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839 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = _obj } |
618
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840 void fd_list_init ( struct fd_list * list, void * obj ); |
0 | 841 |
842 /* Return boolean, true if the list is empty */ | |
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843 #define FD_IS_LIST_EMPTY( _list ) ((((struct fd_list *)(_list))->head == (_list)) && (((struct fd_list *)(_list))->next == (_list))) |
0 | 844 |
845 /* Insert an item in a list at known position */ | |
846 void fd_list_insert_after ( struct fd_list * ref, struct fd_list * item ); | |
847 void fd_list_insert_before ( struct fd_list * ref, struct fd_list * item ); | |
848 | |
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849 /* Move all elements from a list at the end of another */ |
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850 void fd_list_move_end(struct fd_list * ref, struct fd_list * senti); |
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851 |
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852 /* 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 | 853 int fd_list_insert_ordered( struct fd_list * head, struct fd_list * item, int (*cmp_fct)(void *, void *), void ** ref_duplicate); |
854 | |
855 /* Unlink an item from a list */ | |
856 void fd_list_unlink ( struct fd_list * item ); | |
857 | |
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858 |
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859 |
0 | 860 |
861 /*============================================================*/ | |
862 /* DICTIONARY */ | |
863 /*============================================================*/ | |
618
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864 |
0 | 865 /* Structure that contains the complete dictionary definitions */ |
866 struct dictionary; | |
867 | |
868 /* Structure that contains a dictionary object */ | |
869 struct dict_object; | |
870 | |
871 /* Types of object in the dictionary. */ | |
872 enum dict_object_type { | |
873 DICT_VENDOR = 1, /* Vendor */ | |
874 DICT_APPLICATION, /* Diameter Application */ | |
875 DICT_TYPE, /* AVP data type */ | |
876 DICT_ENUMVAL, /* Named constant (value of an enumerated AVP type) */ | |
877 DICT_AVP, /* AVP */ | |
878 DICT_COMMAND, /* Diameter Command */ | |
879 DICT_RULE /* a Rule for AVP in command or grouped AVP */ | |
880 #define DICT_TYPE_MAX DICT_RULE | |
881 }; | |
882 | |
883 /* Initialize a dictionary */ | |
884 int fd_dict_init(struct dictionary ** dict); | |
885 /* Destroy a dictionary */ | |
886 int fd_dict_fini(struct dictionary ** dict); | |
887 | |
888 /* | |
889 * FUNCTION: fd_dict_new | |
890 * | |
891 * PARAMETERS: | |
892 * dict : Pointer to the dictionnary where the object is created | |
893 * type : What kind of object must be created | |
894 * data : pointer to the data for the object. | |
972 | 895 * type parameter is used to determine the type of data (see below for detail). |
0 | 896 * parent : a reference to a parent object, if needed. |
897 * ref : upon successful creation, reference to new object is stored here if !null. | |
898 * | |
899 * DESCRIPTION: | |
900 * Create a new object in the dictionary. | |
901 * See following object sections in this header file for more information on data and parent parameters format. | |
902 * | |
903 * RETURN VALUE: | |
904 * 0 : The object is created in the dictionary. | |
905 * EINVAL : A parameter is invalid. | |
906 * EEXIST : This object is already defined in the dictionary (with conflicting data). | |
907 * If "ref" is not NULL, it points to the existing element on return. | |
908 * (other standard errors may be returned, too, with their standard meaning. Example: | |
909 * ENOMEM : Memory allocation for the new object element failed.) | |
910 */ | |
620
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911 int fd_dict_new ( struct dictionary * dict, enum dict_object_type type, void * data, struct dict_object * parent, struct dict_object ** ref ); |
0 | 912 |
913 /* | |
914 * FUNCTION: fd_dict_search | |
915 * | |
916 * PARAMETERS: | |
917 * dict : Pointer to the dictionnary where the object is searched | |
918 * type : type of object that is being searched | |
972 | 919 * criteria : how the object must be searched. See object-related sections below for more information. |
0 | 920 * what : depending on criteria, the data that must be searched. |
921 * result : On successful return, pointer to the object is stored here. | |
922 * retval : this value is returned if the object is not found and result is not NULL. | |
923 * | |
924 * DESCRIPTION: | |
925 * Perform a search in the dictionary. | |
972 | 926 * See the object-specific sections below to find how to look for each objects. |
0 | 927 * If the "result" parameter is NULL, the function is used to check if an object is in the dictionary. |
928 * Otherwise, a reference to the object is stored in result if found. | |
929 * If result is not NULL and the object is not found, retval is returned (should be 0 or ENOENT usually) | |
930 * | |
931 * RETURN VALUE: | |
932 * 0 : The object has been found in the dictionary, or *result is NULL. | |
933 * EINVAL : A parameter is invalid. | |
934 * ENOENT : No matching object has been found, and result was NULL. | |
935 */ | |
907
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936 int fd_dict_search ( struct dictionary * dict, enum dict_object_type type, int criteria, const void * what, struct dict_object ** result, int retval ); |
0 | 937 |
938 /* Special case: get the generic error command object */ | |
620
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939 int fd_dict_get_error_cmd(struct dictionary * dict, struct dict_object ** obj); |
0 | 940 |
941 /* | |
942 * FUNCTION: fd_dict_getval | |
943 * | |
944 * PARAMETERS: | |
945 * object : Pointer to a dictionary object. | |
946 * data : pointer to a structure to hold the data for the object. | |
947 * The type is the same as "data" parameter in fd_dict_new function. | |
948 * | |
949 * DESCRIPTION: | |
950 * Retrieve content of a dictionary object. | |
951 * See following object sections in this header file for more information on data and parent parameters format. | |
952 * | |
953 * RETURN VALUE: | |
954 * 0 : The content of the object has been retrieved. | |
955 * EINVAL : A parameter is invalid. | |
956 */ | |
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957 int fd_dict_getval ( struct dict_object * object, void * val); |
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958 int fd_dict_gettype ( struct dict_object * object, enum dict_object_type * type); |
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959 int fd_dict_getdict ( struct dict_object * object, struct dictionary ** dict); |
0 | 960 |
961 /* Debug functions */ | |
962 void fd_dict_dump_object(struct dict_object * obj); | |
963 void fd_dict_dump(struct dictionary * dict); | |
964 | |
764
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965 /* Function to access full contents of the dictionary, see doc in dictionary.c */ |
769
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966 int fd_dict_getlistof(int criteria, void * parent, struct fd_list ** sentinel); |
764
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967 |
778
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968 /* Function to remove an entry from the dictionary. |
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969 This cannot be used if the object has children (for example a vendor with vendor-specific AVPs). |
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970 In such case, the children must be removed first. */ |
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971 int fd_dict_delete(struct dict_object * obj); |
764
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972 |
0 | 973 /* |
974 *************************************************************************** | |
975 * | |
976 * Vendor object | |
977 * | |
978 * These types are used to manage vendors in the dictionary | |
979 * | |
980 *************************************************************************** | |
981 */ | |
982 | |
983 /* Type to hold a Vendor ID: "SMI Network Management Private Enterprise Codes" (RFC3232) */ | |
984 typedef uint32_t vendor_id_t; | |
985 | |
986 /* Type to hold data associated to a vendor */ | |
987 struct dict_vendor_data { | |
988 vendor_id_t vendor_id; /* ID of a vendor */ | |
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989 char * vendor_name; /* The name of this vendor */ |
0 | 990 }; |
991 | |
992 /* The criteria for searching a vendor object in the dictionary */ | |
993 enum { | |
994 VENDOR_BY_ID = 10, /* "what" points to a vendor_id_t */ | |
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995 VENDOR_BY_NAME, /* "what" points to a char * */ |
972 | 996 VENDOR_OF_APPLICATION /* "what" points to a struct dict_object containing an application (see below) */ |
0 | 997 }; |
998 | |
999 /*** | |
1000 * API usage : | |
1001 | |
1002 Note: the value of "vendor_name" is copied when the object is created, and the string may be disposed afterwards. | |
1003 On the other side, when value is retrieved with dict_getval, the string is not copied and MUST NOT be freed. It will | |
1004 be freed automatically along with the object itself with call to dict_fini later. | |
1005 | |
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1006 - fd_dict_new: |
0 | 1007 The "parent" parameter is not used for vendors. |
1008 Sample code to create a vendor: | |
1009 { | |
1010 int ret; | |
1011 struct dict_object * myvendor; | |
1012 struct dict_vendor_data myvendordata = { 23455, "my vendor name" }; -- just an example... | |
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1013 ret = fd_dict_new ( dict, DICT_VENDOR, &myvendordata, NULL, &myvendor ); |
0 | 1014 } |
1015 | |
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1016 - fd_dict_search: |
0 | 1017 Sample codes to look for a vendor object, by its id or name: |
1018 { | |
1019 int ret; | |
1020 struct dict_object * vendor_found; | |
1021 vendor_id_t vendorid = 23455; | |
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1022 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_ID, &vendorid, &vendor_found, ENOENT); |
0 | 1023 - or - |
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1024 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &vendor_found, ENOENT); |
0 | 1025 } |
1026 | |
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1027 - fd_dict_getval: |
0 | 1028 Sample code to retrieve the data from a vendor object: |
1029 { | |
1030 int ret; | |
1031 struct dict_object * myvendor; | |
1032 struct dict_vendor_data myvendordata; | |
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1033 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &myvendor, ENOENT); |
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1034 ret = fd_dict_getval ( myvendor, &myvendordata ); |
0 | 1035 printf("my vendor id: %d\n", myvendordata.vendor_id ); |
1036 } | |
1037 | |
1038 */ | |
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1039 |
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1040 /* Special function: */ |
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1041 uint32_t * fd_dict_get_vendorid_list(struct dictionary * dict); |
0 | 1042 |
1043 /* | |
1044 *************************************************************************** | |
1045 * | |
1046 * Application object | |
1047 * | |
1048 * These types are used to manage Diameter applications in the dictionary | |
1049 * | |
1050 *************************************************************************** | |
1051 */ | |
1052 | |
1053 /* Type to hold a Diameter application ID: IANA assigned value for this application. */ | |
1054 typedef uint32_t application_id_t; | |
1055 | |
1056 /* Type to hold data associated to an application */ | |
1057 struct dict_application_data { | |
1058 application_id_t application_id; /* ID of the application */ | |
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1059 char * application_name; /* The name of this application */ |
0 | 1060 }; |
1061 | |
1062 /* The criteria for searching an application object in the dictionary */ | |
1063 enum { | |
1064 APPLICATION_BY_ID = 20, /* "what" points to a application_id_t */ | |
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1065 APPLICATION_BY_NAME, /* "what" points to a char * */ |
972 | 1066 APPLICATION_OF_TYPE, /* "what" points to a struct dict_object containing a type object (see below) */ |
1067 APPLICATION_OF_COMMAND /* "what" points to a struct dict_object containing a command (see below) */ | |
0 | 1068 }; |
1069 | |
1070 /*** | |
1071 * API usage : | |
1072 | |
1073 The "parent" parameter of dict_new may point to a vendor object to inform of what vendor defines the application. | |
1074 for standard-track applications, the "parent" parameter should be NULL. | |
1075 The vendor associated to an application is retrieved with VENDOR_OF_APPLICATION search criteria on vendors. | |
1076 | |
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1077 - fd_dict_new: |
0 | 1078 Sample code for application creation: |
1079 { | |
1080 int ret; | |
1081 struct dict_object * vendor; | |
1082 struct dict_object * appl; | |
1083 struct dict_vendor_data vendor_data = { | |
1084 23455, | |
1085 "my vendor name" | |
1086 }; | |
1087 struct dict_application_data app_data = { | |
1088 9789, | |
1089 "my vendor's application" | |
1090 }; | |
1091 | |
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1092 ret = fd_dict_new ( dict, DICT_VENDOR, &vendor_data, NULL, &vendor ); |
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1093 ret = fd_dict_new ( dict, DICT_APPLICATION, &app_data, vendor, &appl ); |
0 | 1094 } |
1095 | |
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1096 - fd_dict_search: |
0 | 1097 Sample code to retrieve the vendor of an application |
1098 { | |
1099 int ret; | |
1100 struct dict_object * vendor, * appli; | |
1101 | |
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1102 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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1103 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_OF_APPLICATION, appli, &vendor, ENOENT); |
0 | 1104 } |
1105 | |
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1106 - fd_dict_getval: |
0 | 1107 Sample code to retrieve the data from an application object: |
1108 { | |
1109 int ret; | |
1110 struct dict_object * appli; | |
1111 struct dict_application_data appl_data; | |
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1112 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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1113 ret = fd_dict_getval ( appli, &appl_data ); |
0 | 1114 printf("my application id: %s\n", appl_data.application_id ); |
1115 } | |
1116 | |
1117 */ | |
1118 | |
1119 /* | |
1120 *************************************************************************** | |
1121 * | |
1122 * Type object | |
1123 * | |
1124 * These types are used to manage AVP data types in the dictionary | |
1125 * | |
1126 *************************************************************************** | |
1127 */ | |
1128 | |
1129 /* Type to store any AVP value */ | |
1130 union avp_value { | |
1131 struct { | |
1132 uint8_t *data; /* bytes buffer */ | |
1133 size_t len; /* length of the data buffer */ | |
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1134 } os; /* Storage for an octet string */ |
0 | 1135 int32_t i32; /* integer 32 */ |
1136 int64_t i64; /* integer 64 */ | |
1137 uint32_t u32; /* unsigned 32 */ | |
1138 uint64_t u64; /* unsigned 64 */ | |
1139 float f32; /* float 32 */ | |
1140 double f64; /* float 64 */ | |
1141 }; | |
1142 | |
1143 /* These are the basic AVP types defined in RFC3588bis */ | |
1144 enum dict_avp_basetype { | |
1145 AVP_TYPE_GROUPED, | |
1146 AVP_TYPE_OCTETSTRING, | |
1147 AVP_TYPE_INTEGER32, | |
1148 AVP_TYPE_INTEGER64, | |
1149 AVP_TYPE_UNSIGNED32, | |
1150 AVP_TYPE_UNSIGNED64, | |
1151 AVP_TYPE_FLOAT32, | |
1152 AVP_TYPE_FLOAT64 | |
1153 #define AVP_TYPE_MAX AVP_TYPE_FLOAT64 | |
1154 }; | |
1155 | |
1156 /* Callbacks that can be associated with a derived type to easily interpret the AVP value. */ | |
1157 /* | |
1158 * CALLBACK: dict_avpdata_interpret | |
1159 * | |
1160 * PARAMETERS: | |
1161 * val : Pointer to the AVP value that must be interpreted. | |
1162 * interpreted : The result of interpretation is stored here. The format and meaning depends on each type. | |
1163 * | |
1164 * DESCRIPTION: | |
1165 * This callback can be provided with a derived type in order to facilitate the interpretation of formated data. | |
1166 * For example, when an AVP of type "Address" is received, it can be used to convert the octetstring into a struct sockaddr. | |
1167 * This callback is not called directly, but through the message's API msg_avp_value_interpret function. | |
1168 * | |
1169 * RETURN VALUE: | |
1170 * 0 : Operation complete. | |
1171 * !0 : An error occurred, the error code is returned. | |
1172 */ | |
1173 typedef int (*dict_avpdata_interpret) (union avp_value * value, void * interpreted); | |
1174 /* | |
1175 * CALLBACK: dict_avpdata_encode | |
1176 * | |
1177 * PARAMETERS: | |
1178 * data : The formated data that must be stored in the AVP value. | |
1179 * val : Pointer to the AVP value storage area where the data must be stored. | |
1180 * | |
1181 * DESCRIPTION: | |
1182 * This callback can be provided with a derived type in order to facilitate the encoding of formated data. | |
1183 * For example, it can be used to convert a struct sockaddr in an AVP value of type Address. | |
1184 * This callback is not called directly, but through the message's API msg_avp_value_encode function. | |
1185 * If the callback is defined for an OctetString based type, the created string must be malloc'd. free will be called | |
1186 * automatically later. | |
1187 * | |
1188 * RETURN VALUE: | |
1189 * 0 : Operation complete. | |
1190 * !0 : An error occurred, the error code is returned. | |
1191 */ | |
1192 typedef int (*dict_avpdata_encode) (void * data, union avp_value * val); | |
1193 | |
1194 | |
1195 /* Type to hold data associated to a derived AVP data type */ | |
1196 struct dict_type_data { | |
1197 enum dict_avp_basetype type_base; /* How the data of such AVP must be interpreted */ | |
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1198 char * type_name; /* The name of this type */ |
0 | 1199 dict_avpdata_interpret type_interpret;/* cb to convert the AVP value in more comprehensive format (or NULL) */ |
1200 dict_avpdata_encode type_encode; /* cb to convert formatted data into an AVP value (or NULL) */ | |
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1201 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 | 1202 }; |
1203 | |
1204 /* The criteria for searching a type object in the dictionary */ | |
1205 enum { | |
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1206 TYPE_BY_NAME = 30, /* "what" points to a char * */ |
972 | 1207 TYPE_OF_ENUMVAL, /* "what" points to a struct dict_object containing an enumerated constant (DICT_ENUMVAL, see below). */ |
0 | 1208 TYPE_OF_AVP /* "what" points to a struct dict_object containing an AVP object. */ |
1209 }; | |
1210 | |
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1211 /**** |
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1212 Callbacks defined in libfdproto/dictionary_functions.c file -- see that file for usage. |
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1213 */ |
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1214 |
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1215 /* Convert an Address type AVP into a struct sockaddr_storage */ |
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1216 int fd_dictfct_Address_encode(void * data, union avp_value * avp_value); |
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1217 int fd_dictfct_Address_interpret(union avp_value * avp_value, void * interpreted); |
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1218 char * fd_dictfct_Address_dump(union avp_value * avp_value); |
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1219 |
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1220 /* Display the content of an AVP of type UTF8String in the log file */ |
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1221 char * fd_dictfct_UTF8String_dump(union avp_value * avp_value); |
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1222 |
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1223 /* For Time AVPs, map with time_t value directly */ |
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1224 int fd_dictfct_Time_encode(void * data, union avp_value * avp_value); |
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1225 int fd_dictfct_Time_interpret(union avp_value * avp_value, void * interpreted); |
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1226 char * fd_dictfct_Time_dump(union avp_value * avp_value); |
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1227 |
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1228 |
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1229 |
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1230 /****/ |
0 | 1231 |
1232 /*** | |
1233 * API usage : | |
1234 | |
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1235 - fd_dict_new: |
0 | 1236 The "parent" parameter may point to an application object, when a type is defined by a Diameter application. |
1237 | |
1238 Sample code: | |
1239 { | |
1240 int ret; | |
1241 struct dict_object * mytype; | |
1242 struct dict_type_data mytypedata = | |
1243 { | |
1244 AVP_TYPE_OCTETSTRING, | |
1245 "Address", | |
1246 NULL, | |
1247 NULL | |
1248 }; | |
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1249 ret = fd_dict_new ( dict, DICT_TYPE, &mytypedata, NULL, &mytype ); |
0 | 1250 } |
1251 | |
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1252 - fd_dict_search: |
0 | 1253 Sample code: |
1254 { | |
1255 int ret; | |
1256 struct dict_object * address_type; | |
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1257 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Address", &address_type, ENOENT); |
0 | 1258 } |
1259 | |
1260 */ | |
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1261 |
0 | 1262 /* |
1263 *************************************************************************** | |
1264 * | |
1265 * Enumerated values object | |
1266 * | |
1267 * These types are used to manage named constants of some AVP, | |
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1268 * for enumerated types. freeDiameter allows constants for types others than Unsigned32 |
0 | 1269 * |
1270 *************************************************************************** | |
1271 */ | |
1272 | |
1273 /* Type to hold data of named constants for AVP */ | |
1274 struct dict_enumval_data { | |
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1275 char * enum_name; /* The name of this constant */ |
0 | 1276 union avp_value enum_value; /* Value of the constant. Union term depends on parent type's base type. */ |
1277 }; | |
1278 | |
1279 /* The criteria for searching a constant in the dictionary */ | |
1280 enum { | |
972 | 1281 ENUMVAL_BY_STRUCT = 40, /* "what" points to a struct dict_enumval_request as defined below */ |
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1282 ENUMVAL_BY_NAME, /* This cannot be used for researches */ |
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1283 ENUMVAL_BY_VALUE /* This cannot be used for researches */ |
0 | 1284 }; |
1285 | |
1286 struct dict_enumval_request { | |
1287 /* Identifier of the parent type, one of the following must not be NULL */ | |
1288 struct dict_object *type_obj; | |
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1289 char * type_name; |
0 | 1290 |
1291 /* Search criteria for the constant */ | |
1292 struct dict_enumval_data search; /* search.enum_value is used only if search.enum_name == NULL */ | |
1293 }; | |
1294 | |
1295 /*** | |
1296 * API usage : | |
1297 | |
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1298 - fd_dict_new: |
0 | 1299 The "parent" parameter must point to a derived type object. |
1300 Sample code to create a type "Boolean" with two constants "True" and "False": | |
1301 { | |
1302 int ret; | |
1303 struct dict_object * type_boolean; | |
1304 struct dict_type_data type_boolean_data = | |
1305 { | |
1306 AVP_TYPE_INTEGER32, | |
1307 "Boolean", | |
1308 NULL, | |
1309 NULL | |
1310 }; | |
1311 struct dict_enumval_data boolean_false = | |
1312 { | |
1313 .enum_name="False", | |
1314 .enum_value.i32 = 0 | |
1315 }; | |
1316 struct dict_enumval_data boolean_true = | |
1317 { | |
1318 .enum_name="True", | |
1319 .enum_value.i32 = -1 | |
1320 }; | |
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1321 ret = fd_dict_new ( dict, DICT_TYPE, &type_boolean_data, NULL, &type_boolean ); |
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1322 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_false, type_boolean, NULL ); |
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1323 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_true , type_boolean, NULL ); |
0 | 1324 |
1325 } | |
1326 | |
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1327 - fd_dict_search: |
0 | 1328 Sample code to look for a constant name, by its value: |
1329 { | |
1330 int ret; | |
1331 struct dict_object * value_found; | |
1332 struct dict_enumval_request boolean_by_value = | |
1333 { | |
1334 .type_name = "Boolean", | |
1335 .search.enum_name=NULL, | |
1336 .search.enum_value.i32 = -1 | |
1337 }; | |
1338 | |
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1339 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
0 | 1340 } |
1341 | |
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1342 - fd_dict_getval: |
0 | 1343 Sample code to retrieve the data from a constant object: |
1344 { | |
1345 int ret; | |
1346 struct dict_object * value_found; | |
1347 struct dict_enumval_data boolean_data = NULL; | |
1348 struct dict_enumval_request boolean_by_value = | |
1349 { | |
1350 .type_name = "Boolean", | |
1351 .search.enum_name=NULL, | |
1352 .search.enum_value.i32 = 0 | |
1353 }; | |
1354 | |
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1355 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
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1356 ret = fd_dict_getval ( value_found, &boolean_data ); |
0 | 1357 printf(" Boolean with value 0: %s", boolean_data.enum_name ); |
1358 } | |
1359 */ | |
1360 | |
1361 /* | |
1362 *************************************************************************** | |
1363 * | |
1364 * AVP object | |
1365 * | |
1366 * These objects are used to manage AVP definitions in the dictionary | |
1367 * | |
1368 *************************************************************************** | |
1369 */ | |
1370 | |
1371 /* Type to hold an AVP code. For vendor 0, these codes are assigned by IANA. Otherwise, it is managed by the vendor */ | |
1372 typedef uint32_t avp_code_t; | |
1373 | |
1374 /* Values of AVP flags */ | |
1375 #define AVP_FLAG_VENDOR 0x80 | |
1376 #define AVP_FLAG_MANDATORY 0x40 | |
1377 #define AVP_FLAG_RESERVED3 0x20 | |
1378 #define AVP_FLAG_RESERVED4 0x10 | |
1379 #define AVP_FLAG_RESERVED5 0x08 | |
1380 #define AVP_FLAG_RESERVED6 0x04 | |
1381 #define AVP_FLAG_RESERVED7 0x02 | |
1382 #define AVP_FLAG_RESERVED8 0x01 | |
1383 | |
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1384 /* For dumping flags and values */ |
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1385 #define DUMP_AVPFL_str "%c%c" |
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1386 #define DUMP_AVPFL_val(_val) (_val & AVP_FLAG_VENDOR)?'V':'-' , (_val & AVP_FLAG_MANDATORY)?'M':'-' |
0 | 1387 |
1388 /* Type to hold data associated to an avp */ | |
1389 struct dict_avp_data { | |
1390 avp_code_t avp_code; /* Code of the avp */ | |
1391 vendor_id_t avp_vendor; /* Vendor of the AVP, or 0 */ | |
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1392 char * avp_name; /* Name of this AVP */ |
0 | 1393 uint8_t avp_flag_mask; /* Mask of fixed AVP flags */ |
1394 uint8_t avp_flag_val; /* Values of the fixed flags */ | |
1395 enum dict_avp_basetype avp_basetype; /* Basic type of data found in the AVP */ | |
1396 }; | |
1397 | |
1398 /* The criteria for searching an avp object in the dictionary */ | |
1399 enum { | |
1400 AVP_BY_CODE = 50, /* "what" points to an avp_code_t, vendor is always 0 */ | |
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1401 AVP_BY_NAME, /* "what" points to a char *, vendor is always 0 */ |
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1402 AVP_BY_NAME_ALL_VENDORS,/* "what" points to a string. Might be quite slow... */ |
972 | 1403 AVP_BY_STRUCT, /* "what" points to a struct dict_avp_request_ex (see below) */ |
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1404 |
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1405 /* kept for backward compatibility, better use AVP_BY_STRUCT above instead */ |
972 | 1406 AVP_BY_CODE_AND_VENDOR, /* "what" points to a struct dict_avp_request (see below), where avp_vendor and avp_code are set */ |
1407 AVP_BY_NAME_AND_VENDOR /* "what" points to a struct dict_avp_request (see below), where avp_vendor and avp_name are set */ | |
0 | 1408 }; |
1409 | |
1410 /* Struct used for some researchs */ | |
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1411 struct dict_avp_request_ex { |
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1412 struct { |
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1413 /* Only one of the following fields must be set. */ |
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1414 struct dict_object * vendor; /* most efficient if already known, set to NULL to ignore */ |
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1415 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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1416 const char * vendor_name; /* set to NULL to ignore */ |
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1417 } avp_vendor; |
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1418 |
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1419 struct { |
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1420 /* Only one of the following fields must be set */ |
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1421 avp_code_t avp_code; /* set to 0 to ignore */ |
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1422 const char * avp_name; /* set to NULL to ignore */ |
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1423 } avp_data; |
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1424 }; |
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1425 |
0 | 1426 struct dict_avp_request { |
1427 vendor_id_t avp_vendor; | |
1428 avp_code_t avp_code; | |
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1429 char * avp_name; |
0 | 1430 }; |
1431 | |
1432 | |
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1433 |
0 | 1434 /*** |
1435 * API usage : | |
1436 | |
1437 If "parent" parameter is not NULL during AVP creation, it must point to a DICT_TYPE object. | |
1438 The extended type is then attached to the AVP. In case where it is an enumerated type, the value of | |
1439 AVP is automatically interpreted in debug messages, and in message checks. | |
1440 The derived type of an AVP can be retrieved with: dict_search ( DICT_TYPE, TYPE_OF_AVP, avp, ... ) | |
1441 | |
1442 To create the rules (ABNF) for children of Grouped AVP, see the DICT_RULE related part. | |
1443 | |
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1444 - fd_dict_new: |
0 | 1445 Sample code for AVP creation: |
1446 { | |
1447 int ret; | |
1448 struct dict_object * user_name_avp; | |
1449 struct dict_object * boolean_type; | |
1450 struct dict_object * sample_boolean_avp; | |
1451 struct dict_avp_data user_name_data = { | |
1452 1, // code | |
1453 0, // vendor | |
1454 "User-Name", // name | |
1455 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 | |
1456 AVP_FLAG_MANDATORY, // the V flag must be cleared, the M flag must be set. | |
1457 AVP_TYPE_OCTETSTRING // User-Name AVP contains OctetString data (further precision such as UTF8String can be given with a parent derived type) | |
1458 }; | |
1459 struct dict_avp_data sample_boolean_data = { | |
1460 31337, | |
1461 23455, | |
1462 "Sample-Boolean", | |
1463 AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, | |
1464 AVP_FLAG_VENDOR, | |
1465 AVP_TYPE_INTEGER32 // This MUST be the same as parent type's | |
1466 }; | |
1467 | |
1468 -- Create an AVP with a base type -- | |
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1469 ret = fd_dict_new ( dict, DICT_AVP, &user_name_data, NULL, &user_name_avp ); |
0 | 1470 |
1471 -- Create an AVP with a derived type -- | |
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1472 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Boolean", &boolean_type, ENOENT); |
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1473 ret = fd_dict_new ( dict, DICT_AVP, &sample_boolean_data , boolean_type, &sample_boolean_avp ); |
0 | 1474 |
1475 } | |
1476 | |
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1477 - fd_dict_search: |
0 | 1478 Sample code to look for an AVP |
1479 { | |
1480 int ret; | |
1481 struct dict_object * avp_username; | |
1482 struct dict_object * avp_sampleboolean; | |
1483 struct dict_avp_request avpvendorboolean = | |
1484 { | |
1485 .avp_vendor = 23455, | |
1486 .avp_name = "Sample-Boolean" | |
1487 }; | |
1488 | |
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1489 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
0 | 1490 |
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1491 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME_AND_VENDOR, &avpvendorboolean, &avp_sampleboolean, ENOENT); |
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1493 -- this would also work, but be slower, because it has to search all vendor dictionaries -- |
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1494 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME_ALL_VENDORS, "Sample-Boolean", &avp_sampleboolean, ENOENT); |
0 | 1495 |
1496 } | |
1497 | |
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1498 - fd_dict_getval: |
0 | 1499 Sample code to retrieve the data from an AVP object: |
1500 { | |
1501 int ret; | |
1502 struct dict_object * avp_username; | |
1503 struct dict_avp_data user_name_data; | |
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1504 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
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1505 ret = fd_dict_getval ( avp_username, &user_name_data ); |
0 | 1506 printf("User-Name code: %d\n", user_name_data.avp_code ); |
1507 } | |
1508 | |
1509 */ | |
1510 | |
1511 /* | |
1512 *************************************************************************** | |
1513 * | |
1514 * Command object | |
1515 * | |
1516 * These types are used to manage commands objects in the dictionary | |
1517 * | |
1518 *************************************************************************** | |
1519 */ | |
1520 | |
1521 /* Type to hold a Diameter command code: IANA assigned values. 0x0-0x7fffff=standard, 0x800000-0xfffffd=vendors, 0xfffffe-0xffffff=experimental */ | |
1522 typedef uint32_t command_code_t; | |
1523 | |
1524 /* Values of command flags */ | |
1525 #define CMD_FLAG_REQUEST 0x80 | |
1526 #define CMD_FLAG_PROXIABLE 0x40 | |
1527 #define CMD_FLAG_ERROR 0x20 | |
1528 #define CMD_FLAG_RETRANSMIT 0x10 | |
1529 #define CMD_FLAG_RESERVED5 0x08 | |
1530 #define CMD_FLAG_RESERVED6 0x04 | |
1531 #define CMD_FLAG_RESERVED7 0x02 | |
1532 #define CMD_FLAG_RESERVED8 0x01 | |
1533 | |
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1534 /* For dumping flags and values */ |
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1535 #define DUMP_CMDFL_str "%c%c%c%c" |
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1536 #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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1537 |
0 | 1538 /* Type to hold data associated to a command */ |
1539 struct dict_cmd_data { | |
1540 command_code_t cmd_code; /* code of the command */ | |
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1541 char * cmd_name; /* Name of the command */ |
0 | 1542 uint8_t cmd_flag_mask; /* Mask of fixed-value flags */ |
1543 uint8_t cmd_flag_val; /* values of the fixed flags */ | |
1544 }; | |
1545 | |
1546 /* The criteria for searching an avp object in the dictionary */ | |
1547 enum { | |
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1548 CMD_BY_NAME = 60, /* "what" points to a char * */ |
0 | 1549 CMD_BY_CODE_R, /* "what" points to a command_code_t. The "Request" command is returned. */ |
1550 CMD_BY_CODE_A, /* "what" points to a command_code_t. The "Answer" command is returned. */ | |
1551 CMD_ANSWER /* "what" points to a struct dict_object of a request command. The corresponding "Answer" command is returned. */ | |
1552 }; | |
1553 | |
1554 | |
1555 /*** | |
1556 * API usage : | |
1557 | |
1558 The "parent" parameter of dict_new may point to an application object to inform of what application defines the command. | |
1559 The application associated to a command is retrieved with APPLICATION_OF_COMMAND search criteria on applications. | |
1560 | |
1561 To create the rules for children of commands, see the DICT_RULE related part. | |
1562 | |
1563 Note that the "Request" and "Answer" commands are two independant objects. This allows to have different rules for each. | |
1564 | |
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1565 - fd_dict_new: |
0 | 1566 Sample code for command creation: |
1567 { | |
1568 int ret; | |
1569 struct dict_object * cer; | |
1570 struct dict_object * cea; | |
1571 struct dict_cmd_data ce_data = { | |
1572 257, // code | |
1573 "Capabilities-Exchange-Request", // name | |
1574 CMD_FLAG_REQUEST, // mask | |
1575 CMD_FLAG_REQUEST // value. Only the "R" flag is constrained here, set. | |
1576 }; | |
1577 | |
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1578 ret = fd_dict_new (dict, DICT_COMMAND, &ce_data, NULL, &cer ); |
0 | 1579 |
1580 ce_data.cmd_name = "Capabilities-Exchange-Answer"; | |
1581 ce_data.cmd_flag_val = 0; // Same constraint on "R" flag, but this time it must be cleared. | |
1582 | |
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1583 ret = fd_dict_new ( dict, DICT_COMMAND, &ce_data, NULL, &cea ); |
0 | 1584 } |
1585 | |
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1586 - fd_dict_search: |
0 | 1587 Sample code to look for a command |
1588 { | |
1589 int ret; | |
1590 struct dict_object * cer, * cea; | |
1591 command_code_t code = 257; | |
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1592 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1593 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_CODE_R, &code, &cer, ENOENT); |
0 | 1594 } |
1595 | |
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1596 - fd_dict_getval: |
0 | 1597 Sample code to retrieve the data from a command object: |
1598 { | |
1599 int ret; | |
1600 struct dict_object * cer; | |
1601 struct dict_object * cea; | |
1602 struct dict_cmd_data cea_data; | |
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1603 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1604 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_ANSWER, cer, &cea, ENOENT); |
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1605 ret = fd_dict_getval ( cea, &cea_data ); |
0 | 1606 printf("Answer to CER: %s\n", cea_data.cmd_name ); |
1607 } | |
1608 | |
1609 */ | |
1610 | |
1611 /* | |
1612 *************************************************************************** | |
1613 * | |
1614 * Rule object | |
1615 * | |
1616 * These objects are used to manage rules in the dictionary (ABNF implementation) | |
1617 * This is used for checking messages validity (more powerful than a DTD) | |
1618 * | |
1619 *************************************************************************** | |
1620 */ | |
1621 | |
1622 /* This defines the kind of rule that is defined */ | |
1623 enum rule_position { | |
1624 RULE_FIXED_HEAD = 1, /* The AVP must be at the head of the group. The rule_order field is used to specify the position. */ | |
1625 RULE_REQUIRED, /* The AVP must be present in the parent, but its position is not defined. */ | |
1626 RULE_OPTIONAL, /* The AVP may be present in the message. Used to specify a max number of occurences for example */ | |
1627 RULE_FIXED_TAIL /* The AVP must be at the end of the group. The rule_order field is used to specify the position. */ | |
1628 }; | |
1629 | |
1630 /* Content of a RULE object data */ | |
1631 struct dict_rule_data { | |
1632 struct dict_object *rule_avp; /* Pointer to the AVP object that is concerned by this rule */ | |
1633 enum rule_position rule_position; /* The position in which the rule_avp must appear in the parent */ | |
1634 unsigned rule_order; /* for RULE_FIXED_* rules, the place. 1,2,3.. for HEAD rules; ...,3,2,1 for TAIL rules. */ | |
1635 int rule_min; /* Minimum number of occurences. -1 means "default": 0 for optional rules, 1 for other rules */ | |
1636 int rule_max; /* Maximum number of occurences. -1 means no maximum. 0 means the AVP is forbidden. */ | |
1637 }; | |
1638 | |
1639 /* The criteria for searching a rule in the dictionary */ | |
1640 enum { | |
972 | 1641 RULE_BY_AVP_AND_PARENT = 70 /* "what" points to a struct dict_rule_request -- see below. This is used to query "what is the rule for this AVP in this group?" */ |
0 | 1642 }; |
1643 | |
1644 /* Structure for querying the dictionary about a rule */ | |
1645 struct dict_rule_request { | |
1646 struct dict_object *rule_parent; /* The grouped avp or command to which the rule apply */ | |
1647 struct dict_object *rule_avp; /* The AVP concerned by this rule */ | |
1648 }; | |
1649 | |
1650 | |
1651 /*** | |
1652 * API usage : | |
1653 | |
1654 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). | |
1655 | |
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1656 - fd_dict_new: |
0 | 1657 Sample code for rule creation. Let's create the Proxy-Info grouped AVP for example. |
1658 { | |
1659 int ret; | |
1660 struct dict_object * proxy_info_avp; | |
1661 struct dict_object * proxy_host_avp; | |
1662 struct dict_object * proxy_state_avp; | |
1663 struct dict_object * diameteridentity_type; | |
1664 struct dict_rule_data rule_data; | |
1665 struct dict_type_data di_type_data = { AVP_TYPE_OCTETSTRING, "DiameterIdentity", NULL, NULL }; | |
1666 struct dict_avp_data proxy_info_data = { 284, 0, "Proxy-Info", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_GROUPED }; | |
1667 struct dict_avp_data proxy_host_data = { 280, 0, "Proxy-Host", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
1668 struct dict_avp_data proxy_state_data = { 33, 0, "Proxy-State",AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
1669 | |
1670 -- Create the parent AVP | |
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1671 ret = fd_dict_new ( dict, DICT_AVP, &proxy_info_data, NULL, &proxy_info_avp ); |
0 | 1672 |
1673 -- Create the first child AVP. | |
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1674 ret = fd_dict_new ( dict, DICT_TYPE, &di_type_data, NULL, &diameteridentity_type ); |
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1675 ret = fd_dict_new ( dict, DICT_AVP, &proxy_host_data, diameteridentity_type, &proxy_host_avp ); |
0 | 1676 |
1677 -- Create the other child AVP | |
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1678 ret = fd_dict_new ( dict, DICT_AVP, &proxy_state_data, NULL, &proxy_state_avp ); |
0 | 1679 |
1680 -- Now we can create the rules. Both children AVP are mandatory. | |
1681 rule_data.rule_position = RULE_REQUIRED; | |
1682 rule_data.rule_min = -1; | |
1683 rule_data.rule_max = -1; | |
1684 | |
1685 rule_data.rule_avp = proxy_host_avp; | |
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1686 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
0 | 1687 |
1688 rule_data.rule_avp = proxy_state_avp; | |
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1689 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
0 | 1690 } |
1691 | |
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1692 - fd_dict_search and fd_dict_getval are similar to previous examples. |
0 | 1693 |
1694 */ | |
1695 | |
1696 /* Define some hard-coded values */ | |
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1697 /* Application */ |
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1698 #define AI_RELAY 0xffffffff |
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1699 |
0 | 1700 /* Commands Codes */ |
1701 #define CC_CAPABILITIES_EXCHANGE 257 | |
1702 #define CC_RE_AUTH 258 | |
1703 #define CC_ACCOUNTING 271 | |
1704 #define CC_ABORT_SESSION 274 | |
1705 #define CC_SESSION_TERMINATION 275 | |
1706 #define CC_DEVICE_WATCHDOG 280 | |
1707 #define CC_DISCONNECT_PEER 282 | |
1708 | |
1709 /* AVPs (Vendor 0) */ | |
87 | 1710 #define AC_USER_NAME 1 |
0 | 1711 #define AC_PROXY_STATE 33 |
1712 #define AC_HOST_IP_ADDRESS 257 | |
1713 #define AC_AUTH_APPLICATION_ID 258 | |
1714 #define AC_ACCT_APPLICATION_ID 259 | |
1715 #define AC_VENDOR_SPECIFIC_APPLICATION_ID 260 | |
1716 #define AC_REDIRECT_HOST_USAGE 261 | |
1717 #define AC_REDIRECT_MAX_CACHE_TIME 262 | |
1718 #define AC_SESSION_ID 263 | |
1719 #define AC_ORIGIN_HOST 264 | |
1720 #define AC_SUPPORTED_VENDOR_ID 265 | |
1721 #define AC_VENDOR_ID 266 | |
1722 #define AC_FIRMWARE_REVISION 267 | |
1723 #define AC_RESULT_CODE 268 | |
1724 #define AC_PRODUCT_NAME 269 | |
1725 #define AC_DISCONNECT_CAUSE 273 | |
1726 #define ACV_DC_REBOOTING 0 | |
1727 #define ACV_DC_BUSY 1 | |
1728 #define ACV_DC_NOT_FRIEND 2 | |
1729 #define AC_ORIGIN_STATE_ID 278 | |
1730 #define AC_FAILED_AVP 279 | |
1731 #define AC_PROXY_HOST 280 | |
1732 #define AC_ERROR_MESSAGE 281 | |
1733 #define AC_ROUTE_RECORD 282 | |
1734 #define AC_DESTINATION_REALM 283 | |
1735 #define AC_PROXY_INFO 284 | |
1736 #define AC_REDIRECT_HOST 292 | |
1737 #define AC_DESTINATION_HOST 293 | |
1738 #define AC_ERROR_REPORTING_HOST 294 | |
1739 #define AC_ORIGIN_REALM 296 | |
1740 #define AC_INBAND_SECURITY_ID 299 | |
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1741 #define ACV_ISI_NO_INBAND_SECURITY 0 |
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1742 #define ACV_ISI_TLS 1 |
0 | 1743 |
705
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1744 /* Error codes from Base protocol |
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1745 (reference: http://www.iana.org/assignments/aaa-parameters/aaa-parameters.xml#aaa-parameters-4) |
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1746 Note that currently, rfc3588bis-26 has some different values for some of these |
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1747 */ |
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1748 #define ER_DIAMETER_MULTI_ROUND_AUTH 1001 |
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1749 |
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1750 #define ER_DIAMETER_SUCCESS 2001 |
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1751 #define ER_DIAMETER_LIMITED_SUCCESS 2002 |
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1752 |
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1753 #define ER_DIAMETER_COMMAND_UNSUPPORTED 3001 /* 5019 ? */ |
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1754 #define ER_DIAMETER_UNABLE_TO_DELIVER 3002 |
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1755 #define ER_DIAMETER_REALM_NOT_SERVED 3003 |
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1756 #define ER_DIAMETER_TOO_BUSY 3004 |
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1757 #define ER_DIAMETER_LOOP_DETECTED 3005 |
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1758 #define ER_DIAMETER_REDIRECT_INDICATION 3006 |
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1759 #define ER_DIAMETER_APPLICATION_UNSUPPORTED 3007 |
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1760 #define ER_DIAMETER_INVALID_HDR_BITS 3008 /* 5020 ? */ |
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1761 #define ER_DIAMETER_INVALID_AVP_BITS 3009 /* 5021 ? */ |
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1762 #define ER_DIAMETER_UNKNOWN_PEER 3010 /* 5018 ? */ |
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1763 |
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1764 #define ER_DIAMETER_AUTHENTICATION_REJECTED 4001 |
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1765 #define ER_DIAMETER_OUT_OF_SPACE 4002 |
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1766 #define ER_ELECTION_LOST 4003 |
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1767 |
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1768 #define ER_DIAMETER_AVP_UNSUPPORTED 5001 |
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1769 #define ER_DIAMETER_UNKNOWN_SESSION_ID 5002 |
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1770 #define ER_DIAMETER_AUTHORIZATION_REJECTED 5003 |
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1771 #define ER_DIAMETER_INVALID_AVP_VALUE 5004 |
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1772 #define ER_DIAMETER_MISSING_AVP 5005 |
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1773 #define ER_DIAMETER_RESOURCES_EXCEEDED 5006 |
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1774 #define ER_DIAMETER_CONTRADICTING_AVPS 5007 |
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1775 #define ER_DIAMETER_AVP_NOT_ALLOWED 5008 |
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1776 #define ER_DIAMETER_AVP_OCCURS_TOO_MANY_TIMES 5009 |
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1777 #define ER_DIAMETER_NO_COMMON_APPLICATION 5010 |
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1778 #define ER_DIAMETER_UNSUPPORTED_VERSION 5011 |
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1779 #define ER_DIAMETER_UNABLE_TO_COMPLY 5012 |
f0cb8f465763
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diff
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|
1780 #define ER_DIAMETER_INVALID_BIT_IN_HEADER 5013 /* 3011 ? */ |
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diff
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1781 #define ER_DIAMETER_INVALID_AVP_LENGTH 5014 |
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689
diff
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1782 #define ER_DIAMETER_INVALID_MESSAGE_LENGTH 5015 /* 3012 ? */ |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
1783 #define ER_DIAMETER_INVALID_AVP_BIT_COMBO 5016 /* deprecated? */ |
f0cb8f465763
Added standard Result-Code values in header.
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689
diff
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|
1784 #define ER_DIAMETER_NO_COMMON_SECURITY 5017 |
0 | 1785 |
2
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1786 |
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1787 /*============================================================*/ |
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1788 /* SESSIONS */ |
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1789 /*============================================================*/ |
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1790 |
3
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diff
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1791 /* Modules that want to associate a state with a Session-Id must first register a handler of this type */ |
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1792 struct session_handler; |
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1793 |
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|
1794 /* This opaque structure represents a session associated with a Session-Id */ |
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|
1795 struct session; |
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1796 |
226
406f74f0789b
Few cosmetics changes
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diff
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1797 /* The state information that a module associate with a session -- each module defines its own data format */ |
3
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1798 typedef void session_state; |
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1799 |
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>
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diff
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1800 /* The following function must be called to activate the session expiry mechanism */ |
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1801 int fd_sess_start(void); |
9a8b3178a7a7
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1802 |
3
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1803 /* |
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1804 * FUNCTION: fd_sess_handler_create |
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1805 * |
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1806 * PARAMETERS: |
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1807 * handler : location where the new handler must be stored. |
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parents:
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diff
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1808 * 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
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|
1809 * opaque : A pointer that is passed to the cleanup callback -- the content is never examined by the framework. |
3
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1810 * |
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1811 * DESCRIPTION: |
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1812 * Create a new session handler. This is needed by a module to associate a state with a session object. |
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diff
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1813 * The cleanup handler is called when the session timeout expires, or fd_sess_destroy is called. It must free |
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parents:
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1814 * the state associated with the session, and eventually trig other actions (send a STR, ...). |
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1815 * |
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1816 * RETURN VALUE: |
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diff
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1817 * 0 : The new handler has been created. |
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diff
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1818 * EINVAL : A parameter is invalid. |
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parents:
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diff
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|
1819 * ENOMEM : Not enough memory to complete the operation |
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1820 */ |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
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|
1821 int fd_sess_handler_create_internal ( struct session_handler ** handler, void (*cleanup)(session_state * state, os0_t sid, void * opaque), void * opaque ); |
3
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parents:
2
diff
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|
1822 /* 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
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|
1823 #define fd_sess_handler_create( _handler, _cleanup, _opaque ) \ |
706
4ffbc9f1e922
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parents:
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|
1824 fd_sess_handler_create_internal( (_handler), (void (*)(session_state *, os0_t, void *))(_cleanup), (void *)(_opaque) ) |
3
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1825 |
340
81821e9f6988
Fix issue on session cleanup callback parameters -- thanks Souheil for reporting.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
336
diff
changeset
|
1826 |
3
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
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diff
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|
1827 /* |
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diff
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|
1828 * FUNCTION: fd_sess_handler_destroy |
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1829 * |
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parents:
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diff
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|
1830 * PARAMETERS: |
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parents:
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diff
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|
1831 * 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
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|
1832 * opaque : the opaque pointer registered with the callback is restored here (if ! NULL). |
3
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Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
1833 * |
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parents:
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diff
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1834 * DESCRIPTION: |
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parents:
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diff
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|
1835 * This destroys a session handler (typically called when an application is shutting down). |
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parents:
2
diff
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|
1836 * If sessions states are registered with this handler, the cleanup callback is called on them. |
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
1837 * |
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Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
1838 * RETURN VALUE: |
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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|
1839 * 0 : The handler was destroyed. |
ef303f1078ab
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1840 * EINVAL : A parameter is invalid. |
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1841 * ENOMEM : Not enough memory to complete the operation |
ef303f1078ab
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
1842 */ |
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
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|
1843 int fd_sess_handler_destroy ( struct session_handler ** handler, void **opaque ); |
3
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diff
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|
1844 |
2
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diff
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|
1845 |
d8ce06172629
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1
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|
1846 |
d8ce06172629
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1
diff
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|
1847 /* |
3
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parents:
2
diff
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|
1848 * FUNCTION: fd_sess_new |
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parents:
2
diff
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|
1849 * |
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|
1850 * PARAMETERS: |
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1851 * session : The location where the session object will be created upon success. |
706
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1852 * diamid : a Diameter Identity, or NULL. |
4ffbc9f1e922
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
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|
1853 * diamidlen : if diamid is \0-terminated, this can be 0. Otherwise, the length of diamid. |
972 | 1854 * opt : Additional string, or NULL. Usage is described below. |
3
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Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
1855 * optlen : if opt is \0-terminated, this can be 0. Otherwise, the length of opt. |
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1856 * |
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|
1857 * DESCRIPTION: |
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parents:
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1858 * Create a new session object. The Session-Id string associated with this session is generated as follow: |
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parents:
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|
1859 * If diamId parameter is provided, the string is created according to the RFC: <diamId>;<high32>;<low32>[;opt] where |
ef303f1078ab
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diff
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1860 * diamId is a Diameter Identity. |
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1861 * high32 and low32 are the parts of a monotonic 64 bits counter initialized to (time, 0) at startup. |
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1862 * opt is an optional string that can be concatenated to the identifier. |
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parents:
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1863 * If diamId is NULL, the string is exactly the content of opt. |
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1864 * |
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|
1865 * RETURN VALUE: |
924
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
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parents:
922
diff
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|
1866 * 0 : The session is created, the initial msg refcount is 1. |
3
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|
1867 * EINVAL : A parameter is invalid. |
924
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
Sebastien Decugis <sdecugis@freediameter.net>
parents:
922
diff
changeset
|
1868 * EALREADY : A session with the same name already exists (returned in *session), the msg refcount is increased. |
3
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1869 * ENOMEM : Not enough memory to complete the operation |
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1870 */ |
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1871 int fd_sess_new ( struct session ** session, DiamId_t diamid, size_t diamidlen, uint8_t * opt, size_t optlen ); |
3
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1872 |
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1873 /* |
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|
1874 * FUNCTION: fd_sess_fromsid |
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1875 * |
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1876 * PARAMETERS: |
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1877 * sid : pointer to a string containing a Session-Id (should be UTF-8). |
3
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|
1878 * len : length of the sid string (which does not need to be '\0'-terminated) |
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|
1879 * session : On success, pointer to the session object created / retrieved. |
653
34373acfbc6a
Added sample C++ file in _sample extension
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parents:
649
diff
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|
1880 * isnew : if not NULL, set to 1 on return if the session object has been created, 0 if it was simply retrieved. |
2
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|
1881 * |
3
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|
1882 * DESCRIPTION: |
85
e5fcd672caff
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83
diff
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|
1883 * Retrieve a session object from a Session-Id string. In case no session object was previously existing with this |
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1884 * id, a new object is silently created (equivalent to fd_sess_new with flag SESSION_NEW_FULL). |
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1885 * |
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1886 * RETURN VALUE: |
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1887 * 0 : The session parameter has been updated. |
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1888 * EINVAL : A parameter is invalid. |
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1889 * ENOMEM : Not enough memory to complete the operation |
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1890 */ |
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1891 int fd_sess_fromsid ( uint8_t * sid, size_t len, struct session ** session, int * isnew); |
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1892 |
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1893 /* |
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1894 * FUNCTION: fd_sess_getsid |
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1895 * |
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1896 * PARAMETERS: |
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1897 * session : Pointer to a session object. |
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1898 * sid : On success, the location of the sid is stored here. |
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1899 * |
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1900 * DESCRIPTION: |
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1901 * Retrieve the session identifier (Session-Id) corresponding to a session object. |
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1902 * The returned sid is a \0-terminated binary string which might be UTF-8 (but there is no guarantee in the framework). |
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1903 * It may be used for example to set the value of an AVP. |
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1904 * Note that the sid string is not copied, just its reference... do not free it! |
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1905 * |
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1906 * RETURN VALUE: |
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1907 * 0 : The sid & len parameters have been updated. |
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1908 * EINVAL : A parameter is invalid. |
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1909 */ |
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1910 int fd_sess_getsid ( struct session * session, os0_t * sid, size_t * sidlen ); |
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1911 |
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1912 /* |
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1913 * FUNCTION: fd_sess_settimeout |
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1914 * |
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1915 * PARAMETERS: |
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1916 * session : The session for which to set the timeout. |
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1917 * timeout : The date when the session times out. |
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1918 * |
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1919 * DESCRIPTION: |
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1920 * Set the lifetime for a given session object. This function may be |
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1921 * called several times on the same object to update the timeout value. |
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1922 * When the timeout date is reached, the cleanup handler of each |
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1923 * module that registered data with this session is called, then the |
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1924 * session is cleared. |
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1925 * |
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1926 * There is a possible race condition between cleanup of the session |
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1927 * and use of its data; applications should ensure that they are not |
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1928 * using data from a session that is about to expire / expired. |
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1929 * |
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1930 * RETURN VALUE: |
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1931 * 0 : The session timeout has been updated. |
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1932 * EINVAL : A parameter is invalid. |
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1933 */ |
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1934 int fd_sess_settimeout( struct session * session, const struct timespec * timeout ); |
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1935 |
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1936 /* |
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1937 * FUNCTION: fd_sess_destroy |
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1938 * |
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1939 * PARAMETERS: |
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1940 * session : Pointer to a session object. |
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1941 * |
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1942 * DESCRIPTION: |
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1943 * Destroys all associated states of a session, if any. |
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1944 * Equivalent to a session timeout expired, but the effect is immediate. |
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1945 * The session itself is marked as deleted, and will be freed when it is not referenced |
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1946 * by any message anymore. |
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1947 * |
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1948 * RETURN VALUE: |
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1949 * 0 : The session no longer exists. |
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1950 * EINVAL : A parameter is invalid. |
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1951 */ |
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1952 int fd_sess_destroy ( struct session ** session ); |
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1953 |
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1954 /* |
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1955 * FUNCTION: fd_sess_reclaim |
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1956 * |
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1957 * PARAMETERS: |
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1958 * session : Pointer to a session object. |
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1959 * |
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1960 * DESCRIPTION: |
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1961 * Equivalent to fd_sess_destroy, only if no session_state is associated with the session. |
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1962 * Otherwise, this function has no effect (except that it sets *session to NULL). |
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1963 * |
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1964 * RETURN VALUE: |
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1965 * 0 : The session was reclaimed. |
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1966 * EINVAL : A parameter is invalid. |
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1967 */ |
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1968 int fd_sess_reclaim ( struct session ** session ); |
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1969 |
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1970 |
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1971 |
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1972 |
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1973 /* |
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1974 * FUNCTION: fd_sess_state_store |
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1975 * |
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1976 * PARAMETERS: |
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1977 * handler : The handler with which the state is registered. |
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1978 * session : The session object with which the state is registered. |
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1979 * state : An application state (opaque data) to store with the session. |
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1980 * |
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1981 * DESCRIPTION: |
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1982 * Stores an application state with a session. This state can later be retrieved |
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1983 * with fd_sess_state_retrieve, or implicitly in the cleanup handler when the session |
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1984 * is destroyed. |
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1985 * |
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1986 * RETURN VALUE: |
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1987 * 0 : The state has been stored. |
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1988 * EINVAL : A parameter is invalid. |
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1989 * EALREADY : Data was already associated with this session and client. |
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1990 * ENOMEM : Not enough memory to complete the operation |
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1991 */ |
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1992 int fd_sess_state_store_internal ( struct session_handler * handler, struct session * session, session_state ** state ); |
5
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Completed new session module tests; some bugs fixed
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diff
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|
1993 #define fd_sess_state_store( _handler, _session, _state ) \ |
6
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
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5
diff
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|
1994 fd_sess_state_store_internal( (_handler), (_session), (void *)(_state) ) |
3
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
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diff
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|
1995 |
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diff
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|
1996 /* |
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parents:
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diff
changeset
|
1997 * FUNCTION: fd_sess_state_retrieve |
2
d8ce06172629
Added a global debug level var
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diff
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|
1998 * |
3
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diff
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|
1999 * PARAMETERS: |
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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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|
2000 * handler : The handler with which the state was registered. |
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2001 * session : The session object with which the state was registered. |
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2002 * state : Location where the state must be saved if it is found. |
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diff
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|
2003 * |
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Progress; added session module; testsess to be completed
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parents:
2
diff
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|
2004 * DESCRIPTION: |
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Progress; added session module; testsess to be completed
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parents:
2
diff
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|
2005 * Retrieves a state saved by fd_sess_state_store. |
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Progress; added session module; testsess to be completed
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parents:
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2006 * After this function has been called, the state is no longer associated with |
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
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|
2007 * the session. A new call to fd_sess_state_store must be performed in order to |
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
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|
2008 * store again the data with the session. |
2
d8ce06172629
Added a global debug level var
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parents:
1
diff
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|
2009 * |
3
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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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|
2010 * 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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2011 * 0 : *state is updated (NULL or points to the state if it was found). |
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Progress; added session module; testsess to be completed
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parents:
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2012 * EINVAL : A parameter is invalid. |
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Progress; added session module; testsess to be completed
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parents:
2
diff
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|
2013 */ |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
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|
2014 int fd_sess_state_retrieve_internal ( struct session_handler * handler, struct session * session, session_state ** state ); |
5
c2d2729e3603
Completed new session module tests; some bugs fixed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
3
diff
changeset
|
2015 #define fd_sess_state_retrieve( _handler, _session, _state ) \ |
6
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2016 fd_sess_state_retrieve_internal( (_handler), (_session), (void *)(_state) ) |
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
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|
2017 |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
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|
2018 |
3
ef303f1078ab
Progress; added session module; testsess to be completed
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parents:
2
diff
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|
2019 /* For debug */ |
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Progress; added session module; testsess to be completed
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parents:
2
diff
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|
2020 void fd_sess_dump(int level, struct session * session); |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
2021 void fd_sess_dump_hdl(int level, struct session_handler * handler); |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
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|
2022 |
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
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
769
diff
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|
2023 /* 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
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
769
diff
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|
2024 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
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
769
diff
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|
2025 |
2
d8ce06172629
Added a global debug level var
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parents:
1
diff
changeset
|
2026 /*============================================================*/ |
83
c662d3eb6ff6
Started support for routing module
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43
diff
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|
2027 /* ROUTING */ |
c662d3eb6ff6
Started support for routing module
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43
diff
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|
2028 /*============================================================*/ |
c662d3eb6ff6
Started support for routing module
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parents:
43
diff
changeset
|
2029 |
c662d3eb6ff6
Started support for routing module
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parents:
43
diff
changeset
|
2030 /* The following functions are helpers for the routing module. |
168
6db078b955e3
Completed rt_default extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
156
diff
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|
2031 The routing data is stored in the message itself. */ |
83
c662d3eb6ff6
Started support for routing module
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parents:
43
diff
changeset
|
2032 |
c662d3eb6ff6
Started support for routing module
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43
diff
changeset
|
2033 /* Structure that contains the routing data for a message */ |
c662d3eb6ff6
Started support for routing module
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43
diff
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|
2034 struct rt_data; |
c662d3eb6ff6
Started support for routing module
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parents:
43
diff
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|
2035 |
c662d3eb6ff6
Started support for routing module
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parents:
43
diff
changeset
|
2036 /* Following functions are helpers to create the routing data of a message */ |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2037 int fd_rtd_init(struct rt_data ** rtd); |
83
c662d3eb6ff6
Started support for routing module
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parents:
43
diff
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|
2038 void fd_rtd_free(struct rt_data ** rtd); |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
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2039 |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
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705
diff
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|
2040 /* Add a peer to the candidates list. */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
705
diff
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|
2041 int fd_rtd_candidate_add(struct rt_data * rtd, DiamId_t peerid, size_t peeridlen, DiamId_t realm, size_t realmlen); |
83
c662d3eb6ff6
Started support for routing module
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parents:
43
diff
changeset
|
2042 |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2043 /* Remove a peer from the candidates (if it is found). The search is case-insensitive. */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2044 void fd_rtd_candidate_del(struct rt_data * rtd, uint8_t * id, size_t idsz); |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2045 |
88
9e2db1647d6f
Completed routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
87
diff
changeset
|
2046 /* Extract the list of valid candidates, and initialize their scores to 0 */ |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2047 void fd_rtd_candidate_extract(struct rt_data * rtd, struct fd_list ** candidates, int ini_score); |
88
9e2db1647d6f
Completed routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
87
diff
changeset
|
2048 |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2049 /* If a peer returned a protocol error for this message, save it so that we don't try to send it there again */ |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2050 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
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2051 |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2052 /* The extracted list items have the following structure: */ |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2053 struct rtd_candidate { |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2054 struct fd_list chain; /* link in the list returned by the previous fct */ |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2055 DiamId_t diamid; /* the diameter Id of the peer */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2056 size_t diamidlen; /* cached size of the diamid string */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2057 DiamId_t realm; /* the diameter realm of the peer */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2058 size_t realmlen; /* cached size of realm */ |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2059 int score; /* the current routing score for this peer, see fd_rt_out_register definition for details */ |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2060 }; |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2061 |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2062 /* Reorder the list of peers by score */ |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2063 int fd_rtd_candidate_reorder(struct fd_list * candidates); |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2064 |
85
e5fcd672caff
Added new function to retrieve messages sessions easily
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2065 /* 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
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2066 /* Beware that this could lead to routing loops */ |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2067 |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2068 /*============================================================*/ |
0 | 2069 /* MESSAGES */ |
2070 /*============================================================*/ | |
2071 | |
2072 /* The following types are opaque */ | |
2073 struct msg; /* A message: command with children AVPs (possibly grand children) */ | |
2074 struct avp; /* AVP object */ | |
2075 | |
2076 /* Some details about chaining: | |
2077 * | |
2078 * A message is made of a header ( msg ) and 0 or more AVPs ( avp ). | |
2079 * The structure is a kind of tree, where some AVPs (grouped AVPs) can contain other AVPs. | |
871 | 2080 * Example: |
0 | 2081 * msg |
2082 * |-avp | |
2083 * |-gavp | |
2084 * | |-avp | |
2085 * | |-avp | |
2086 * | \-avp | |
2087 * |-avp | |
2088 * \-avp | |
2089 * | |
2090 */ | |
2091 | |
2092 /* The following type is used to point to either a msg or an AVP */ | |
2093 typedef void msg_or_avp; | |
2094 | |
2095 /* The Diameter protocol version */ | |
2096 #define DIAMETER_VERSION 1 | |
2097 | |
2098 /* In the two following types, some fields are marked (READONLY). | |
2099 * This means that the content of these fields will be overwritten by the daemon so modifying it is useless. | |
2100 */ | |
2101 | |
2102 /* The following structure represents the header of a message. All data is in host byte order. */ | |
2103 struct msg_hdr { | |
2104 uint8_t msg_version; /* (READONLY) Version of Diameter: must be DIAMETER_VERSION. */ | |
2105 uint32_t msg_length; /* (READONLY)(3 bytes) indicates the length of the message */ | |
2106 uint8_t msg_flags; /* Message flags: CMD_FLAG_* */ | |
2107 command_code_t msg_code; /* (3 bytes) the command-code. See dictionary-api.h for more detail */ | |
2108 application_id_t msg_appl; /* The application issuing this message */ | |
2109 uint32_t msg_hbhid; /* The Hop-by-Hop identifier of the message */ | |
2110 uint32_t msg_eteid; /* The End-to-End identifier of the message */ | |
2111 }; | |
2112 | |
2113 /* The following structure represents the visible content of an AVP. All data is in host byte order. */ | |
2114 struct avp_hdr { | |
2115 avp_code_t avp_code; /* the AVP Code */ | |
2116 uint8_t avp_flags; /* AVP_FLAG_* flags */ | |
2117 uint32_t avp_len; /* (READONLY)(Only 3 bytes are used) the length of the AVP as described in the RFC */ | |
2118 vendor_id_t avp_vendor; /* Only used if AVP_FLAG_VENDOR is present */ | |
2119 union avp_value *avp_value; /* pointer to the value of the AVP. NULL means that the value is not set / not understood. | |
2120 One should not directly change this value. Use the msg_avp_setvalue function instead. | |
2121 The content of the pointed structure can be changed directly, with this restriction: | |
2122 if the AVP is an OctetString, and you change the value of the pointer avp_value->os.data, then | |
2123 you must call free() on the previous value, and the new one must be free()-able. | |
2124 */ | |
2125 }; | |
2126 | |
2127 /* The following enum is used to browse inside message hierarchy (msg, gavp, avp) */ | |
2128 enum msg_brw_dir { | |
2129 MSG_BRW_NEXT = 1, /* Get the next element at the same level, or NULL if this is the last element. */ | |
2130 MSG_BRW_PREV, /* Get the previous element at the same level, or NULL if this is the first element. */ | |
2131 MSG_BRW_FIRST_CHILD, /* Get the first child AVP of this element, if any. */ | |
2132 MSG_BRW_LAST_CHILD, /* Get the last child AVP of this element, if any. */ | |
2133 MSG_BRW_PARENT, /* Get the parent element of this element, if any. Only the msg_t object has no parent. */ | |
2134 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. */ | |
2135 }; | |
2136 | |
972 | 2137 /* Some flags used in the functions below */ |
892
b2e8f1a3ef76
Allow the content of the Failed-AVP to be parseable to bufferize the message. The content is only padded currently
Sebastien Decugis <sdecugis@freediameter.net>
parents:
891
diff
changeset
|
2138 #define AVPFL_SET_BLANK_VALUE 0x01 /* When creating an AVP, initialize its value to a blank area */ |
b2e8f1a3ef76
Allow the content of the Failed-AVP to be parseable to bufferize the message. The content is only padded currently
Sebastien Decugis <sdecugis@freediameter.net>
parents:
891
diff
changeset
|
2139 #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) */ |
b2e8f1a3ef76
Allow the content of the Failed-AVP to be parseable to bufferize the message. The content is only padded currently
Sebastien Decugis <sdecugis@freediameter.net>
parents:
891
diff
changeset
|
2140 #define AVPFL_MAX AVPFL_SET_RAWDATA_FROM_AVP /* The biggest valid flag value */ |
638
9448cba86673
Improved usability of dbg_interactive
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
637
diff
changeset
|
2141 |
0 | 2142 #define MSGFL_ALLOC_ETEID 0x01 /* When creating a message, a new end-to-end ID is allocated and set in the message */ |
2143 #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 */ | |
112
6a294d977878
Default to add Session-Id in answers
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
90
diff
changeset
|
2144 #define MSGFL_ANSW_NOSID 0x04 /* When creating an answer message, do not add the Session-Id even if present in request */ |
992
80584f0e851a
Copy by default the Proxy-Info AVP included in requests into the answers. Use MSGFL_ANSW_NOPROXYINFO to ignore. This code has not been tested yet.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
981
diff
changeset
|
2145 #define MSGFL_ANSW_NOPROXYINFO 0x08 /* When creating an answer message, do not add the Proxy-Info AVPs presents in request */ |
80584f0e851a
Copy by default the Proxy-Info AVP included in requests into the answers. Use MSGFL_ANSW_NOPROXYINFO to ignore. This code has not been tested yet.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
981
diff
changeset
|
2146 #define MSGFL_MAX MSGFL_ANSW_NOPROXYINFO /* The biggest valid flag value */ |
0 | 2147 |
2148 /**************************************************/ | |
2149 /* Message creation, manipulation, disposal */ | |
2150 /**************************************************/ | |
2151 /* | |
2152 * FUNCTION: fd_msg_avp_new | |
2153 * | |
2154 * PARAMETERS: | |
992
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2155 * model : Pointer to a DICT_AVP dictionary object describing the avp to create, or NULL if flags are used. |
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2156 * flags : Flags to use in creation (AVPFL_*, see above). |
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2157 * avp : Upon success, pointer to the new avp is stored here. It points to reference AVP upon function call when flags are used. |
0 | 2158 * |
2159 * DESCRIPTION: | |
2160 * Create a new AVP instance. | |
2161 * | |
2162 * RETURN VALUE: | |
2163 * 0 : The AVP is created. | |
2164 * EINVAL : A parameter is invalid. | |
2165 * (other standard errors may be returned, too, with their standard meaning. Example: | |
2166 * ENOMEM : Memory allocation for the new avp failed.) | |
2167 */ | |
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2168 int fd_msg_avp_new ( struct dict_object * model, int flags, struct avp ** avp ); |
0 | 2169 |
2170 /* | |
2171 * FUNCTION: fd_msg_new | |
2172 * | |
2173 * PARAMETERS: | |
2174 * model : Pointer to a DICT_COMMAND dictionary object describing the message to create, or NULL. | |
2175 * flags : combination of MSGFL_* flags. | |
2176 * msg : Upon success, pointer to the new message is stored here. | |
2177 * | |
2178 * DESCRIPTION: | |
2179 * Create a new empty Diameter message. | |
2180 * | |
2181 * RETURN VALUE: | |
2182 * 0 : The message is created. | |
2183 * EINVAL : A parameter is invalid. | |
2184 * (other standard errors may be returned, too, with their standard meaning. Example: | |
2185 * ENOMEM : Memory allocation for the new message failed.) | |
2186 */ | |
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2187 int fd_msg_new ( struct dict_object * model, int flags, struct msg ** msg ); |
0 | 2188 |
2189 /* | |
2190 * FUNCTION: msg_new_answer_from_req | |
2191 * | |
2192 * PARAMETERS: | |
2193 * dict : Pointer to the dictionary containing the model of the query. | |
2194 * msg : The location of the query on function call. Updated by the location of answer message on return. | |
2195 * flag : Pass MSGFL_ANSW_ERROR to indicate if the answer is an error message (will set the 'E' bit) | |
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2196 * : See other MSGFL_ANSW_* definition above for other flags. |
0 | 2197 * |
2198 * DESCRIPTION: | |
2199 * This function creates the empty answer message corresponding to a request. | |
2200 * The header is set properly (R flag, ccode, appid, hbhid, eteid) | |
2201 * The Session-Id AVP is copied if present. | |
2202 * The calling code should usually call fd_msg_rescode_set function on the answer. | |
2203 * Upon return, the original query may be retrieved by calling fd_msg_answ_getq on the message. | |
2204 * | |
2205 * RETURN VALUE: | |
2206 * 0 : Operation complete. | |
2207 * !0 : an error occurred. | |
2208 */ | |
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2209 int fd_msg_new_answer_from_req ( struct dictionary * dict, struct msg ** msg, int flag ); |
0 | 2210 |
2211 /* | |
2212 * FUNCTION: fd_msg_browse | |
2213 * | |
2214 * PARAMETERS: | |
2215 * reference : Pointer to a struct msg or struct avp. | |
2216 * dir : Direction for browsing | |
2217 * found : If not NULL, updated with the element that has been found, if any, or NULL if no element was found / an error occurred. | |
2218 * 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. | |
2219 * | |
2220 * DESCRIPTION: | |
2221 * Explore the content of a message object (hierarchy). If "found" is null, only error checking is performed. | |
2222 * If "depth" is provided, it is updated as follow on successful function return: | |
2223 * - not modified for MSG_BRW_NEXT and MSG_BRW_PREV. | |
2224 * - *depth = *depth + 1 for MSG_BRW_FIRST_CHILD and MSG_BRW_LAST_CHILD. | |
2225 * - *depth = *depth - 1 for MSG_BRW_PARENT. | |
2226 * - *depth = *depth + X for MSG_BRW_WALK, with X between 1 (returned the 1st child) and -N (returned the Nth parent's next). | |
2227 * | |
2228 * RETURN VALUE: | |
2229 * 0 : found has been updated (if non NULL). | |
2230 * EINVAL : A parameter is invalid. | |
2231 * ENOENT : No element has been found where requested, and "found" was NULL (otherwise, *found is set to NULL and 0 is returned). | |
2232 */ | |
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2233 int fd_msg_browse_internal ( msg_or_avp * reference, enum msg_brw_dir dir, msg_or_avp ** found, int * depth ); |
0 | 2234 /* Macro to avoid having to cast the third parameter everywhere */ |
2235 #define fd_msg_browse( ref, dir, found, depth ) \ | |
2236 fd_msg_browse_internal( (ref), (dir), (void *)(found), (depth) ) | |
2237 | |
2238 | |
2239 /* | |
2240 * FUNCTION: fd_msg_avp_add | |
2241 * | |
2242 * PARAMETERS: | |
2243 * reference : Pointer to a valid msg or avp. | |
2244 * dir : location where the new AVP should be inserted, relative to the reference. MSG_BRW_PARENT and MSG_BRW_WALK are not valid. | |
2245 * avp : pointer to the AVP object that must be inserted. | |
2246 * | |
2247 * DESCRIPTION: | |
2248 * Adds an AVP into an object that can contain it: grouped AVP or message. | |
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2249 * Note that the added AVP will be freed at the same time as the object it is added to, |
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2250 * so it should not be freed after the call to this function. |
0 | 2251 * |
2252 * RETURN VALUE: | |
2253 * 0 : The AVP has been added. | |
2254 * EINVAL : A parameter is invalid. | |
2255 */ | |
2256 int fd_msg_avp_add ( msg_or_avp * reference, enum msg_brw_dir dir, struct avp *avp); | |
2257 | |
2258 /* | |
2259 * FUNCTION: fd_msg_search_avp | |
2260 * | |
2261 * PARAMETERS: | |
2262 * msg : The message structure in which to search the AVP. | |
2263 * what : The dictionary model of the AVP to search. | |
2264 * avp : location where the AVP reference is stored if found. | |
2265 * | |
2266 * DESCRIPTION: | |
2267 * Search the first top-level AVP of a given model inside a message. | |
2268 * Note: only the first instance of the AVP is returned by this function. | |
2269 * Note: only top-level AVPs are searched, not inside grouped AVPs. | |
2270 * Use msg_browse if you need more advanced research features. | |
2271 * | |
2272 * RETURN VALUE: | |
2273 * 0 : The AVP has been found. | |
2274 * EINVAL : A parameter is invalid. | |
2275 * ENOENT : No AVP has been found, and "avp" was NULL (otherwise, *avp is set to NULL and 0 returned). | |
2276 */ | |
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2277 int fd_msg_search_avp ( struct msg * msg, struct dict_object * what, struct avp ** avp ); |
0 | 2278 |
2279 /* | |
2280 * FUNCTION: fd_msg_free | |
2281 * | |
2282 * PARAMETERS: | |
2283 * object : pointer to the message or AVP object that must be unlinked and freed. | |
2284 * | |
2285 * DESCRIPTION: | |
2286 * Unlink and free a message or AVP object and its children. | |
2287 * If the object is an AVP linked into a message, the AVP is removed before being freed. | |
2288 * | |
2289 * RETURN VALUE: | |
2290 * 0 : The message has been freed. | |
2291 * EINVAL : A parameter is invalid. | |
2292 */ | |
2293 int fd_msg_free ( msg_or_avp * object ); | |
2294 | |
2295 /***************************************/ | |
2296 /* Dump functions */ | |
2297 /***************************************/ | |
2298 /* | |
2299 * FUNCTION: fd_msg_dump_* | |
2300 * | |
2301 * PARAMETERS: | |
2302 * level : the log level (INFO, FULL, ...) at which the object is dumped | |
2303 * obj : A msg or avp object. | |
2304 * | |
2305 * DESCRIPTION: | |
2306 * These functions dump the content of a message to the debug log | |
2307 * either recursively or only the object itself. | |
2308 * | |
2309 * RETURN VALUE: | |
2310 * - | |
2311 */ | |
2312 void fd_msg_dump_walk ( int level, msg_or_avp *obj ); | |
2313 void fd_msg_dump_one ( int level, msg_or_avp *obj ); | |
2314 | |
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2315 /* |
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2316 * FUNCTION: fd_msg_log |
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2317 * |
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2318 * PARAMETERS: |
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2319 * cause : Context for calling this function. This allows the log facility to be configured precisely. |
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2320 * msg : The message to log. |
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2321 * prefix_format: Printf-style format message that is printed ahead of the message. Might be reason for drop or so. |
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2322 * |
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2323 * DESCRIPTION: |
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2324 * This function is called when a Diameter message reaches some particular points in the fD framework. |
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2325 * The actual effect is configurable: log in a separate file, dump in the debug log, etc. |
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2326 * |
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2327 * RETURN VALUE: |
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2328 * - |
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2329 */ |
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2330 enum fd_msg_log_cause { |
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2331 FD_MSG_LOG_DROPPED = 1, /* message has been dropped by the framework */ |
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2332 FD_MSG_LOG_RECEIVED, /* message received from the network */ |
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2333 FD_MSG_LOG_SENT, /* message sent to another peer */ |
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2334 FD_MSG_LOG_NODELIVER, /* message could not be delivered to any peer */ |
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2335 FD_MSG_LOG_TIMING /* profiling messages */ |
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2336 }; |
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2337 #define FD_MSG_LOG_MAX FD_MSG_LOG_TIMING |
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2338 void fd_msg_log( enum fd_msg_log_cause cause, struct msg * msg, const char * prefix_format, ... ); |
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2339 |
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2340 /* configure the msg_log facility */ |
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2341 enum fd_msg_log_method { |
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2342 FD_MSG_LOGTO_NONE = 0, /* The message is not dumped. This is the default. */ |
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2343 FD_MSG_LOGTO_DEBUGONLY, /* Simply log the message with other debug information, at the INFO level. */ |
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2344 FD_MSG_LOGTO_FILE, /* Messages are dumped in a single file, defined in arg */ |
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2345 FD_MSG_LOGTO_DIR /* Messages are dumped in different files within one directory defined in arg. */ |
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2346 }; |
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2347 int fd_msg_log_config(enum fd_msg_log_cause cause, enum fd_msg_log_method method, const char * arg); |
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2348 void fd_msg_log_init(struct dictionary *dict); |
0 | 2349 |
2350 /*********************************************/ | |
2351 /* Message metadata management functions */ | |
2352 /*********************************************/ | |
2353 /* | |
2354 * FUNCTION: fd_msg_model | |
2355 * | |
2356 * PARAMETERS: | |
2357 * reference : Pointer to a valid msg or avp. | |
2358 * model : on success, pointer to the dictionary model of this command or AVP. NULL if the model is unknown. | |
2359 * | |
2360 * DESCRIPTION: | |
2361 * Retrieve the dictionary object describing this message or avp. If the object is unknown or the fd_msg_parse_dict has not been called, | |
2362 * *model is set to NULL. | |
2363 * | |
2364 * RETURN VALUE: | |
2365 * 0 : The model has been set. | |
2366 * EINVAL : A parameter is invalid. | |
2367 */ | |
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2368 int fd_msg_model ( msg_or_avp * reference, struct dict_object ** model ); |
0 | 2369 |
2370 /* | |
2371 * FUNCTION: fd_msg_hdr | |
2372 * | |
2373 * PARAMETERS: | |
2374 * msg : Pointer to a valid message object. | |
2375 * pdata : Upon success, pointer to the msg_hdr structure of this message. The fields may be modified. | |
2376 * | |
2377 * DESCRIPTION: | |
2378 * Retrieve location of modifiable section of a message. | |
2379 * | |
2380 * RETURN VALUE: | |
2381 * 0 : The location has been written. | |
2382 * EINVAL : A parameter is invalid. | |
2383 */ | |
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2384 int fd_msg_hdr ( struct msg *msg, struct msg_hdr ** pdata ); |
0 | 2385 |
2386 /* | |
2387 * FUNCTION: fd_msg_avp_hdr | |
2388 * | |
2389 * PARAMETERS: | |
2390 * avp : Pointer to a valid avp object. | |
2391 * pdata : Upon success, pointer to the avp_hdr structure of this avp. The fields may be modified. | |
2392 * | |
2393 * DESCRIPTION: | |
2394 * Retrieve location of modifiable data of an avp. | |
2395 * | |
2396 * RETURN VALUE: | |
2397 * 0 : The location has been written. | |
2398 * EINVAL : A parameter is invalid. | |
2399 */ | |
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2400 int fd_msg_avp_hdr ( struct avp *avp, struct avp_hdr ** pdata ); |
0 | 2401 |
2402 /* | |
2403 * FUNCTION: fd_msg_answ_associate, fd_msg_answ_getq, fd_msg_answ_detach | |
2404 * | |
2405 * PARAMETERS: | |
2406 * answer : the received answer message | |
2407 * query : the corresponding query that had been sent | |
2408 * | |
2409 * DESCRIPTION: | |
2410 * fd_msg_answ_associate associates a query msg with the received answer. | |
2411 * Query is retrieved with fd_msg_answ_getq. | |
2412 * If answer message is freed, the query is also freed. | |
2413 * If the msg_answ_detach function is called, the association is removed. | |
2414 * This is meant to be called from the daemon only. | |
2415 * | |
2416 * RETURN VALUE: | |
2417 * 0 : ok | |
2418 * EINVAL: a parameter is invalid | |
2419 */ | |
2420 int fd_msg_answ_associate( struct msg * answer, struct msg * query ); | |
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2421 int fd_msg_answ_getq ( struct msg * answer, struct msg ** query ); |
0 | 2422 int fd_msg_answ_detach ( struct msg * answer ); |
2423 | |
2424 /* | |
2425 * FUNCTION: fd_msg_anscb_associate, fd_msg_anscb_get | |
2426 * | |
2427 * PARAMETERS: | |
2428 * msg : the answer message | |
2429 * anscb : the callback to associate with the message | |
2430 * data : the data to pass to the callback | |
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2431 * timeout : (optional, use NULL if no timeout) a timeout associated with calling the cb. |
0 | 2432 * |
2433 * DESCRIPTION: | |
2434 * Associate or retrieve a callback with an answer message. | |
2435 * This is meant to be called from the daemon only. | |
2436 * | |
2437 * RETURN VALUE: | |
2438 * 0 : ok | |
2439 * EINVAL: a parameter is invalid | |
2440 */ | |
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2441 int fd_msg_anscb_associate( struct msg * msg, void ( *anscb)(void *, struct msg **), void * data, const struct timespec *timeout ); |
0 | 2442 int fd_msg_anscb_get ( struct msg * msg, void (**anscb)(void *, struct msg **), void ** data ); |
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2443 struct timespec *fd_msg_anscb_gettimeout( struct msg * msg ); /* returns NULL or a valid non-0 timespec */ |
0 | 2444 |
2445 /* | |
2446 * FUNCTION: fd_msg_rt_associate, fd_msg_rt_get | |
2447 * | |
2448 * PARAMETERS: | |
2449 * msg : the query message to be sent | |
2450 * list : the ordered list of possible next-peers | |
2451 * | |
2452 * DESCRIPTION: | |
2453 * Associate a routing list with a query, and retrieve it. | |
2454 * If the message is freed, the list is also freed. | |
2455 * | |
2456 * RETURN VALUE: | |
2457 * 0 : ok | |
2458 * EINVAL: a parameter is invalid | |
2459 */ | |
83
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|
2460 int fd_msg_rt_associate( struct msg * msg, struct rt_data ** rtd ); |
620
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Removed the OUTPUT specification for SWIG, too complex
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2461 int fd_msg_rt_get ( struct msg * msg, struct rt_data ** rtd ); |
0 | 2462 |
2463 /* | |
2464 * FUNCTION: fd_msg_is_routable | |
2465 * | |
2466 * PARAMETERS: | |
2467 * msg : A msg object. | |
2468 * | |
2469 * DESCRIPTION: | |
2470 * This function returns a boolean telling if a given message is routable in the Diameter network, | |
2471 * or if it is a local link message only (ex: CER/CEA, DWR/DWA, ...). | |
2472 * | |
2473 * RETURN VALUE: | |
2474 * 0 : The message is not routable / an error occurred. | |
2475 * 1 : The message is routable. | |
2476 */ | |
2477 int fd_msg_is_routable ( struct msg * msg ); | |
2478 | |
2479 /* | |
2480 * FUNCTION: fd_msg_source_(g/s)et | |
2481 * | |
2482 * PARAMETERS: | |
2483 * msg : A msg object. | |
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2484 * diamid,len : The diameter id of the peer from which this message was received. |
0 | 2485 * add_rr : if true, a Route-Record AVP is added to the message with content diamid. In that case, dict must be supplied. |
2486 * dict : a dictionary with definition of Route-Record AVP (if add_rr is true) | |
2487 * | |
2488 * DESCRIPTION: | |
2489 * Store or retrieve the diameted id of the peer from which this message was received. | |
2490 * Will be used for example by the routing module to add the Route-Record AVP in forwarded requests, | |
2491 * or to direct answers to the appropriate peer. | |
2492 * | |
2493 * RETURN VALUE: | |
2494 * 0 : Operation complete. | |
2495 * !0 : an error occurred. | |
2496 */ | |
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2497 int fd_msg_source_set( struct msg * msg, DiamId_t diamid, size_t diamidlen, int add_rr, struct dictionary * dict ); |
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2498 int fd_msg_source_get( struct msg * msg, DiamId_t *diamid, size_t * diamidlen ); |
0 | 2499 |
2500 /* | |
895
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2501 * FUNCTION: fd_msg_ts_* |
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2502 * |
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2503 * PARAMETERS: |
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2504 * msg : A msg object. |
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2505 * ts : A struct timespec pointer, indexed on CLOCK_REALTIME |
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2506 * |
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2507 * DESCRIPTION: |
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2508 * Associate or retrieve timestamps meaningful for the message. |
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2509 * A timestamp with a value of { 0, 0 } means: not set. |
fbf77629cb7b
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2510 * |
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2511 * RETURN VALUE: |
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2512 * 0 : Operation complete. |
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2513 * !0 : an error occurred. |
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2514 */ |
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|
2515 /* when msg was received from network */ |
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2516 int fd_msg_ts_set_recv( struct msg * msg, struct timespec * ts ); |
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2517 int fd_msg_ts_get_recv( struct msg * msg, struct timespec * ts ); |
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2518 int fd_msg_ts_set_sent( struct msg * msg, struct timespec * ts ); |
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2519 int fd_msg_ts_get_sent( struct msg * msg, struct timespec * ts ); |
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2520 |
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2521 |
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2522 /* |
0 | 2523 * FUNCTION: fd_msg_eteid_get |
2524 * | |
2525 * PARAMETERS: | |
2526 * - | |
2527 * | |
2528 * DESCRIPTION: | |
2529 * Get a new unique end-to-end id value for the local peer. | |
2530 * | |
2531 * RETURN VALUE: | |
2532 * The new assigned value. No error code is defined. | |
2533 */ | |
2534 uint32_t fd_msg_eteid_get ( void ); | |
2535 | |
2536 | |
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2537 /* |
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2538 * FUNCTION: fd_msg_sess_get |
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2539 * |
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2540 * PARAMETERS: |
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2541 * dict : the dictionary that contains the Session-Id AVP definition |
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2542 * msg : A valid message. |
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2543 * session : Location to store the session pointer when retrieved. |
653
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2544 * isnew : Indicates if the session has been created. |
85
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2545 * |
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2546 * DESCRIPTION: |
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2547 * This function retrieves or creates the session object corresponding to a message. |
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2548 * If the message does not contain a Session-Id AVP, *session == NULL on return. |
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2549 * Note that the Session-Id AVP must never be modified after created in a message. |
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2550 * |
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2551 * RETURN VALUE: |
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2552 * 0 : success |
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2553 * !0 : standard error code. |
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2554 */ |
653
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parents:
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2555 int fd_msg_sess_get(struct dictionary * dict, struct msg * msg, struct session ** session, int * isnew); |
85
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2556 |
924
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Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
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parents:
922
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2557 /* This one is used by the libfdcore, you should use fd_msg_new_session rather than fd_sess_new, when possible */ |
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
Sebastien Decugis <sdecugis@freediameter.net>
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2558 int fd_msg_sess_set(struct msg * msg, struct session * session); |
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
Sebastien Decugis <sdecugis@freediameter.net>
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|
2559 |
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
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2560 |
0 | 2561 /***************************************/ |
2562 /* Manage AVP values */ | |
2563 /***************************************/ | |
2564 | |
2565 /* | |
2566 * FUNCTION: fd_msg_avp_setvalue | |
2567 * | |
2568 * PARAMETERS: | |
2569 * avp : Pointer to a valid avp object with a NULL avp_value pointer. The model must be known. | |
2570 * value : pointer to an avp_value. The content will be COPIED into the internal storage area. | |
2571 * If data type is an octetstring, the data is also copied. | |
2572 * If value is a NULL pointer, the previous data is erased and value is unset in the AVP. | |
2573 * | |
2574 * DESCRIPTION: | |
2575 * Initialize the avp_value field of an AVP header. | |
2576 * | |
2577 * RETURN VALUE: | |
2578 * 0 : The avp_value pointer has been set. | |
2579 * EINVAL : A parameter is invalid. | |
2580 */ | |
2581 int fd_msg_avp_setvalue ( struct avp *avp, union avp_value *value ); | |
2582 | |
2583 /* | |
2584 * FUNCTION: fd_msg_avp_value_encode | |
2585 * | |
2586 * PARAMETERS: | |
2587 * avp : Pointer to a valid avp object with a NULL avp_value. The model must be known. | |
2588 * data : Pointer to the data that must be encoded as AVP value and stored in the AVP. | |
2589 * This is only valid for AVPs of derived type for which type_data_encode callback is set. (ex: Address type) | |
2590 * | |
2591 * DESCRIPTION: | |
2592 * Initialize the avp_value field of an AVP object from formatted data, using the AVP's type "type_data_encode" callback. | |
2593 * | |
2594 * RETURN VALUE: | |
2595 * 0 : The avp_value has been set. | |
2596 * EINVAL : A parameter is invalid. | |
2597 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
2598 */ | |
2599 int fd_msg_avp_value_encode ( void *data, struct avp *avp ); | |
2600 /* | |
2601 * FUNCTION: fd_msg_avp_value_interpret | |
2602 * | |
2603 * PARAMETERS: | |
2604 * avp : Pointer to a valid avp object with a non-NULL avp_value value. | |
2605 * data : Upon success, formatted interpretation of the AVP value is stored here. | |
2606 * | |
2607 * DESCRIPTION: | |
2608 * Interpret the content of an AVP of Derived type and store the result in data pointer. The structure | |
2609 * of the data pointer is dependent on the AVP type. This function calls the "type_data_interpret" callback | |
2610 * of the type. | |
2611 * | |
2612 * RETURN VALUE: | |
2613 * 0 : The avp_value has been set. | |
2614 * EINVAL : A parameter is invalid. | |
2615 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
2616 */ | |
2617 int fd_msg_avp_value_interpret ( struct avp *avp, void *data ); | |
2618 | |
2619 | |
2620 /***************************************/ | |
2621 /* Message parsing functions */ | |
2622 /***************************************/ | |
2623 | |
2624 /* | |
2625 * FUNCTION: fd_msg_bufferize | |
2626 * | |
2627 * PARAMETERS: | |
2628 * msg : A valid msg object. All AVPs must have a value set. | |
2629 * buffer : Upon success, this points to a buffer (malloc'd) containing the message ready for network transmission (or security transformations). | |
2630 * The buffer may be freed after use. | |
2631 * len : if not NULL, the size of the buffer is written here. In any case, this size is updated in the msg header. | |
2632 * | |
2633 * DESCRIPTION: | |
2634 * Renders a message in memory as a buffer that can be sent over the network to the next peer. | |
2635 * | |
2636 * RETURN VALUE: | |
2637 * 0 : The location has been written. | |
2638 * EINVAL : The buffer does not contain a valid Diameter message. | |
2639 * ENOMEM : Unable to allocate enough memory to create the buffer object. | |
2640 */ | |
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2641 int fd_msg_bufferize ( struct msg * msg, uint8_t ** buffer, size_t * len ); |
0 | 2642 |
2643 /* | |
2644 * FUNCTION: fd_msg_parse_buffer | |
2645 * | |
2646 * PARAMETERS: | |
2647 * buffer : Pointer to a buffer containing a message received from the network. | |
2648 * buflen : the size in bytes of the buffer. | |
2649 * msg : Upon success, this points to a valid msg object. No AVP value is resolved in this object, nor grouped AVP. | |
2650 * | |
2651 * DESCRIPTION: | |
2652 * This function parses a buffer an creates a msg object to represent the structure of the message. | |
2653 * Since no dictionary lookup is performed, the values of the AVPs are not interpreted. To interpret the values, | |
2654 * the returned message object must be passed to fd_msg_parse_dict function. | |
2655 * The buffer pointer is saved inside the message and will be freed when not needed anymore. | |
2656 * | |
2657 * RETURN VALUE: | |
2658 * 0 : The location has been written. | |
2659 * ENOMEM : Unable to allocate enough memory to create the msg object. | |
2660 * EBADMSG : The buffer does not contain a valid Diameter message (or is truncated). | |
2661 * EINVAL : A parameter is invalid. | |
2662 */ | |
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|
2663 int fd_msg_parse_buffer ( uint8_t ** buffer, size_t buflen, struct msg ** msg ); |
0 | 2664 |
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2665 /* Parsing Error Information structure */ |
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2666 struct fd_pei { |
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|
2667 char * pei_errcode; /* name of the error code to use */ |
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Tentative fix for the parse_or_error function
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2668 struct avp * pei_avp; /* pointer to invalid (in original message) or missing AVP (to be freed) */ |
114
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2669 char * pei_message; /* Overwrite default message if needed */ |
5b3868944e2b
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2670 int pei_protoerr; /* do we set the 'E' bit in the error message ? */ |
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2671 }; |
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2672 |
0 | 2673 /* |
2674 * FUNCTION: fd_msg_parse_dict | |
2675 * | |
2676 * PARAMETERS: | |
2677 * object : A msg or AVP object as returned by fd_msg_parse_buffer. | |
2678 * dict : the dictionary containing the objects definitions to use for resolving all AVPs. | |
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2679 * error_info : If not NULL, will contain the detail about error upon return. May be used to generate an error reply. |
0 | 2680 * |
2681 * DESCRIPTION: | |
2682 * This function looks up for the command and each children AVP definitions in the dictionary. | |
2683 * If the dictionary definition is found, avp_model is set and the value of the AVP is interpreted accordingly and: | |
2684 * - for grouped AVPs, the children AVP are created and interpreted also. | |
2685 * - for numerical AVPs, the value is converted to host byte order and saved in the avp_value field. | |
2686 * - for octetstring AVPs, the string is copied into a new buffer and its address is saved in avp_value. | |
2687 * If the dictionary definition is not found, avp_model is set to NULL and | |
2688 * the content of the AVP is saved as an octetstring in an internal structure. avp_value is NULL. | |
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2689 * 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 | 2690 * |
2691 * RETURN VALUE: | |
2692 * 0 : The message has been fully parsed as described. | |
2693 * EINVAL : The msg parameter is invalid for this operation. | |
2694 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
2695 * ENOTSUP : No dictionary definition for the command or one of the mandatory AVP was found. | |
2696 */ | |
620
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618
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2697 int fd_msg_parse_dict ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info ); |
34
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2698 |
0 | 2699 /* |
2700 * FUNCTION: fd_msg_parse_rules | |
2701 * | |
2702 * PARAMETERS: | |
2703 * object : A msg or grouped avp object that must be verified. | |
2704 * dict : The dictionary containing the rules definitions. | |
34
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2705 * error_info : If not NULL, the first problem information will be saved here. |
0 | 2706 * |
2707 * DESCRIPTION: | |
2708 * Check that the children of the object do not conflict with the dictionary rules (ABNF compliance). | |
2709 * | |
2710 * RETURN VALUE: | |
2711 * 0 : The message has been fully parsed and complies to the defined rules. | |
2712 * EBADMSG : A conflict was detected, or a mandatory AVP is unknown in the dictionary. | |
2713 * EINVAL : The msg or avp object is invalid for this operation. | |
2714 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
2715 */ | |
620
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Removed the OUTPUT specification for SWIG, too complex
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2716 int fd_msg_parse_rules ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info); |
34
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2717 |
0 | 2718 |
2719 | |
2720 /* | |
2721 * FUNCTION: fd_msg_update_length | |
2722 * | |
2723 * PARAMETERS: | |
2724 * object : Pointer to a valid msg or avp. | |
2725 * | |
2726 * DESCRIPTION: | |
2727 * Update the length field of the object passed as parameter. | |
2728 * As a side effect, all children objects are also updated. Therefore, all avp_value fields of | |
2729 * the children AVPs must be set, or an error will occur. | |
2730 * | |
2731 * RETURN VALUE: | |
2732 * 0 : The size has been recomputed. | |
2733 * EINVAL : A parameter is invalid. | |
2734 */ | |
2735 int fd_msg_update_length ( msg_or_avp * object ); | |
2736 | |
2737 | |
7
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2738 /*============================================================*/ |
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2739 /* DISPATCH */ |
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2740 /*============================================================*/ |
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2741 |
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2742 /* Dispatch module (passing incoming messages to extensions registered callbacks) |
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2743 * is split between the library and the daemon. |
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2744 * |
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2745 * The library provides the support for associating dispatch callbacks with |
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2746 * dictionary objects. |
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2747 * |
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2748 * The daemon is responsible for calling the callbacks for a message when appropriate. |
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2749 * |
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2750 * |
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2751 * The dispatch module has two main roles: |
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2752 * - help determine if a message can be handled locally (during the routing step) |
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2753 * This decision involves only the application-id of the message. |
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2754 * - pass the message to the callback(s) that will handle it (during the dispatch step) |
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2755 * |
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2756 * The first role is handled by the daemon. |
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2757 * |
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2758 * About the second, these are the possibilities for registering a dispatch callback: |
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2759 * |
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2760 * -> For All messages. |
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2761 * This callback is called for all messages that are handled locally. This should be used only |
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2762 * for debug purpose. |
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2763 * |
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2764 * -> by AVP value (constants only). |
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2765 * This callback will be called when a message is received and contains an AVP with a specified enumerated value. |
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2766 * |
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2767 * -> by AVP. |
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2768 * This callback will be called when the received message contains a certain AVP. |
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2769 * |
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2770 * -> by command-code. |
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2771 * This callback will be called when the message is a specific command (and 'R' flag). |
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2772 * |
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2773 * -> by application. |
e5af94b04946
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2774 * This callback will be called when the message has a specific application-id. |
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|
2775 * |
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2776 * ( by vendor: would this be useful? it may be added later) |
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2777 */ |
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|
2778 enum disp_how { |
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2779 DISP_HOW_ANY = 1, /* Any message. This should be only used for debug. */ |
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2780 DISP_HOW_APPID, /* Any message with the specified application-id */ |
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2781 DISP_HOW_CC, /* Messages of the specified command-code (request or answer). App id may be specified. */ |
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2782 DISP_HOW_AVP, /* Messages containing a specific AVP. Command-code and App id may be specified. */ |
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2783 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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2784 }; |
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2785 /* |
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2786 * Several criteria may be selected at the same time, for example command-code AND application id. |
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2787 * |
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2788 * If several callbacks are registered for the same object, they are called in the order they were registered. |
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2789 * The order in which the callbacks are called is: |
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2790 * DISP_HOW_ANY |
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2791 * DISP_HOW_AVP_ENUMVAL & DISP_HOW_AVP |
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2792 * DISP_HOW_CC |
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2793 * DISP_HOW_APPID |
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2794 */ |
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|
2795 |
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2796 /* When a callback is registered, a "when" argument is passed in addition to the disp_how value, |
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2797 * to specify which values the criteria must match. */ |
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|
2798 struct disp_when { |
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2799 struct dict_object * app; |
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2800 struct dict_object * command; |
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2801 struct dict_object * avp; |
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2802 struct dict_object * value; |
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2803 }; |
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|
2804 |
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2805 /* Note that all the dictionary objects should really belong to the same dictionary! |
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2806 * |
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2807 * Here is the details on this "when" argument, depending on the disp_how value. |
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|
2808 * |
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2809 * DISP_HOW_ANY. |
e5af94b04946
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2810 * In this case, "when" must be NULL. |
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2811 * |
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2812 * DISP_HOW_APPID. |
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2813 * 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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2814 * |
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2815 * DISP_HOW_CC. |
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2816 * The "command" field must be defined and point to a dictionary object of type DICT_COMMAND. |
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2817 * 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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2818 * The other fields are ignored. |
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2819 * |
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2820 * DISP_HOW_AVP. |
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2821 * The "avp" field of the structure must be set and point to a dictionary object of type DICT_AVP. |
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2822 * The "app_id" field may be set to restrict the messages matching to a specific app id. |
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2823 * The "command" field may also be set to a valid DICT_COMMAND object. |
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2824 * The content of the "value" field is ignored. |
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2825 * |
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2826 * DISP_HOW_AVP_ENUMVAL. |
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2827 * 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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2828 * and points to a valid DICT_ENUMVAL object. |
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2829 * |
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2830 * Here is a sumary of the fields: ( M : must be set; m : may be set; 0 : ignored ) |
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2831 * field: app_id command avp value |
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2832 * APPID : M 0 0 0 |
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2833 * CC : m M 0 0 |
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2834 * AVP : m m M 0 |
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2835 * ENUMVA: m m M M |
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|
2836 */ |
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|
2837 |
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|
2838 enum disp_action { |
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|
2839 DISP_ACT_CONT, /* The next handler should be called, unless *msg == NULL. */ |
90
2c9444152e4b
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2840 DISP_ACT_SEND, /* The updated message must be sent. No further callback is called. */ |
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2841 DISP_ACT_ERROR /* An error must be created and sent as a reply -- not valid for callbacks, only for fd_msg_dispatch. */ |
7
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
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|
2842 }; |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2843 /* 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
|
2844 * 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
|
2845 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2846 * CALLBACK: dispatch_callback |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2847 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2848 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2849 * 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
|
2850 * 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
|
2851 * 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
|
2852 * 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
|
2853 * 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
|
2854 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2855 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2856 * 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
|
2857 * 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
|
2858 * - create an answer for a request. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2859 * - 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
|
2860 * - 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
|
2861 * - ... |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2862 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2863 * 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
|
2864 * 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
|
2865 * 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
|
2866 * - 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
|
2867 * - 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
|
2868 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2869 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2870 * 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
|
2871 * !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
|
2872 */ |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2873 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2874 /* 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
|
2875 struct disp_hdl; |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2876 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2877 /* |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2878 * FUNCTION: fd_disp_register |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2879 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2880 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2881 * 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
|
2882 * how : How the callback must be registered. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2883 * 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
|
2884 * 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
|
2885 * 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
|
2886 * 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
|
2887 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2888 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2889 * 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
|
2890 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2891 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2892 * 0 : The callback is registered. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2893 * EINVAL : A parameter is invalid. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2894 * ENOMEM : Not enough memory to complete the operation |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2895 */ |
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
|
2896 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
|
2897 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
|
2898 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2899 /* |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2900 * FUNCTION: fd_disp_unregister |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2901 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2902 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2903 * 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
|
2904 * 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
|
2905 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2906 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2907 * 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
|
2908 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2909 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2910 * 0 : The callback is unregistered. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2911 * EINVAL : A parameter is invalid. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2912 */ |
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
|
2913 int fd_disp_unregister ( struct disp_hdl ** handle, void ** opaque ); |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2914 |
90
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2915 /* Destroy all handlers */ |
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2916 void fd_disp_unregister_all ( void ); |
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2917 |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2918 /* |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2919 * FUNCTION: fd_msg_dispatch |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2920 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2921 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2922 * msg : A msg object that have already been fd_msg_parse_dict. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2923 * session : The session corresponding to this object, if any. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2924 * action : Upon return, the action that must be taken on the message |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2925 * error_code : Upon return with action == DISP_ACT_ERROR, contains the error (such as "DIAMETER_UNABLE_TO_COMPLY") |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2926 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2927 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2928 * Call all handlers registered for a given message. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2929 * The session must have already been resolved on entry. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2930 * The msg pointed may be updated during this process. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2931 * Upon return, the action parameter points to what must be done next. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2932 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2933 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2934 * 0 : Success. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2935 * EINVAL : A parameter is invalid. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2936 * (other errors) |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2937 */ |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2938 int fd_msg_dispatch ( struct msg ** msg, struct session * session, enum disp_action *action, char ** error_code ); |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2939 |
e5af94b04946
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2940 |
0 | 2941 |
2942 /*============================================================*/ | |
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2943 /* QUEUES */ |
0 | 2944 /*============================================================*/ |
2945 | |
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2946 /* Management of FIFO queues of elements */ |
0 | 2947 |
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2948 /* A queue is an opaque object */ |
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2949 struct fifo; |
0 | 2950 |
2951 /* | |
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2952 * FUNCTION: fd_fifo_new |
0 | 2953 * |
2954 * PARAMETERS: | |
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2955 * queue : Upon success, a pointer to the new queue is saved here. |
767
c47c16436f71
Added a limit on fifo queues to avoid memory exaustion when messages are received faster than handled
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
764
diff
changeset
|
2956 * max : max number of items in the queue. Above this number, adding a new item becomes a |
c47c16436f71
Added a limit on fifo queues to avoid memory exaustion when messages are received faster than handled
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
764
diff
changeset
|
2957 * blocking operation. Use 0 to disable this maximum. |
0 | 2958 * |
2959 * DESCRIPTION: | |
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2960 * Create a new empty queue. |
0 | 2961 * |
2962 * RETURN VALUE : | |
8
3e143f047f78
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2963 * 0 : The queue has been initialized successfully. |
0 | 2964 * EINVAL : The parameter is invalid. |
2965 * ENOMEM : Not enough memory to complete the creation. | |
2966 */ | |
767
c47c16436f71
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
764
diff
changeset
|
2967 int fd_fifo_new ( struct fifo ** queue, int max ); |
0 | 2968 |
2969 /* | |
8
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2970 * FUNCTION: fd_fifo_del |
0 | 2971 * |
2972 * PARAMETERS: | |
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2973 * queue : Pointer to an empty queue to delete. |
0 | 2974 * |
2975 * DESCRIPTION: | |
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2976 * Destroys a queue. This is only possible if no thread is waiting for an element, |
0 | 2977 * and the queue is empty. |
2978 * | |
2979 * RETURN VALUE: | |
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2980 * 0 : The queue has been destroyed successfully. |
0 | 2981 * EINVAL : The parameter is invalid. |
2982 */ | |
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2983 int fd_fifo_del ( struct fifo ** queue ); |
0 | 2984 |
2985 /* | |
25
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2986 * FUNCTION: fd_fifo_move |
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2987 * |
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2988 * PARAMETERS: |
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2989 * oldq : Location of a FIFO that is to be emptied. |
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2990 * newq : A FIFO that will receive the old data. |
25
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2991 * loc_update : if non NULL, a place to store the pointer to new FIFO atomically with the move. |
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2992 * |
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2993 * DESCRIPTION: |
43
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2994 * Empties a queue and move its content to another one atomically. |
25
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2995 * |
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2996 * RETURN VALUE: |
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2997 * 0 : The queue has been destroyed successfully. |
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2998 * EINVAL : A parameter is invalid. |
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2999 */ |
653
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3000 int fd_fifo_move ( struct fifo * oldq, struct fifo * newq, struct fifo ** loc_update ); |
25
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3001 |
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3002 /* |
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3003 * FUNCTION: fd_fifo_length |
0 | 3004 * |
3005 * PARAMETERS: | |
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3006 * queue : The queue from which to retrieve the number of elements. |
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3007 * length : Upon success, the current number of elements in the queue is stored here. |
0 | 3008 * |
3009 * DESCRIPTION: | |
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3010 * Retrieve the number of elements in a queue. |
0 | 3011 * |
3012 * RETURN VALUE: | |
3013 * 0 : The length of the queue has been written. | |
3014 * EINVAL : A parameter is invalid. | |
3015 */ | |
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3016 int fd_fifo_length ( struct fifo * queue, int * length ); |
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3017 int fd_fifo_length_noerr ( struct fifo * queue ); /* no error checking version */ |
0 | 3018 |
3019 /* | |
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3020 * FUNCTION: fd_fifo_setthrhd |
0 | 3021 * |
3022 * PARAMETERS: | |
3023 * queue : The queue for which the thresholds are being set. | |
3024 * data : An opaque pointer that is passed to h_cb and l_cb callbacks. | |
3025 * high : The high-level threshold. If the number of elements in the queue increase to this value, h_cb is called. | |
3026 * h_cb : if not NULL, a callback to call when the queue lengh is bigger than "high". | |
3027 * low : The low-level threshold. Must be < high. | |
3028 * l_cb : If the number of elements decrease to low, this callback is called. | |
3029 * | |
3030 * DESCRIPTION: | |
3031 * This function allows to adjust the number of producer / consumer threads of a queue. | |
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3032 * If the consumer are slower than the producers, the number of elements in the queue increase. |
0 | 3033 * By setting a "high" value, we allow a callback to be called when this number is too high. |
3034 * The typical use would be to create an additional consumer thread in this callback. | |
3035 * If the queue continues to grow, the callback will be called again when the length is 2 * high, then 3*high, ... N * high | |
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3036 * (the callback itself should implement a limit on the number of consumers that can be created) |
0 | 3037 * When the queue starts to decrease, and the number of elements go under ((N - 1) * high + low, the l_cb callback is called |
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3038 * 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 | 3039 * and so on. |
3040 * | |
3041 * Since there is no destructor for the data pointer, if cleanup operations are required, they should be performed in | |
3042 * l_cb when the length of the queue is becoming < low. | |
3043 * | |
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3044 * Note that the callbacks are called synchronously, during fd_fifo_post or fd_fifo_get. Their operation should be quick. |
0 | 3045 * |
3046 * RETURN VALUE: | |
3047 * 0 : The thresholds have been set | |
3048 * EINVAL : A parameter is invalid. | |
3049 */ | |
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3050 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 | 3051 |
3052 /* | |
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3053 * FUNCTION: fd_fifo_post |
0 | 3054 * |
3055 * PARAMETERS: | |
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3056 * queue : The queue in which the element must be posted. |
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3057 * item : The element that is put in the queue. |
0 | 3058 * |
3059 * DESCRIPTION: | |
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3060 * An element is added in a queue. Elements are retrieved from the queue in FIFO order |
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3061 * with the fd_fifo_get, fd_fifo_tryget, or fd_fifo_timedget functions. |
0 | 3062 * |
3063 * RETURN VALUE: | |
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3064 * 0 : The element is queued. |
0 | 3065 * EINVAL : A parameter is invalid. |
3066 * ENOMEM : Not enough memory to complete the operation. | |
3067 */ | |
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3068 int fd_fifo_post_int ( struct fifo * queue, void ** item ); |
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3069 #define fd_fifo_post(queue, item) \ |
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3070 fd_fifo_post_int((queue), (void *)(item)) |
0 | 3071 |
3072 /* | |
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3073 * FUNCTION: fd_fifo_get |
0 | 3074 * |
3075 * PARAMETERS: | |
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3076 * queue : The queue from which the first element must be retrieved. |
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3077 * item : On return, the first element of the queue is stored here. |
0 | 3078 * |
3079 * DESCRIPTION: | |
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3080 * This function retrieves the first element from a queue. If the queue is empty, the function will block the |
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3081 * thread until a new element is posted to the queue, or until the thread is canceled (in which case the |
0 | 3082 * function does not return). |
3083 * | |
3084 * RETURN VALUE: | |
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3085 * 0 : A new element has been retrieved. |
0 | 3086 * EINVAL : A parameter is invalid. |
3087 */ | |
620
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3088 int fd_fifo_get_int ( struct fifo * queue, void ** item ); |
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3089 #define fd_fifo_get(queue, item) \ |
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3090 fd_fifo_get_int((queue), (void *)(item)) |
0 | 3091 |
3092 /* | |
8
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3093 * FUNCTION: fd_fifo_tryget |
0 | 3094 * |
3095 * PARAMETERS: | |
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3096 * queue : The queue from which the element must be retrieved. |
124
cc42d8607114
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3097 * item : On return, the first element of the queue is stored here. |
0 | 3098 * |
3099 * DESCRIPTION: | |
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3100 * This function is similar to fd_fifo_get, except that it will not block if |
0 | 3101 * the queue is empty, but return EWOULDBLOCK instead. |
3102 * | |
3103 * RETURN VALUE: | |
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3104 * 0 : A new element has been retrieved. |
0 | 3105 * EINVAL : A parameter is invalid. |
3106 * EWOULDBLOCK : The queue was empty. | |
3107 */ | |
620
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3108 int fd_fifo_tryget_int ( struct fifo * queue, void ** item ); |
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3109 #define fd_fifo_tryget(queue, item) \ |
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3110 fd_fifo_tryget_int((queue), (void *)(item)) |
0 | 3111 |
3112 /* | |
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3113 * FUNCTION: fd_fifo_timedget |
0 | 3114 * |
3115 * PARAMETERS: | |
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3116 * queue : The queue from which the element must be retrieved. |
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3117 * item : On return, the element is stored here. |
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3118 * abstime : the absolute time until which we allow waiting for an item. |
0 | 3119 * |
3120 * DESCRIPTION: | |
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3121 * This function is similar to fd_fifo_get, except that it will block if the queue is empty |
0 | 3122 * only until the absolute time abstime (see pthread_cond_timedwait for + info). |
3123 * If the queue is still empty when the time expires, the function returns ETIMEDOUT | |
3124 * | |
3125 * RETURN VALUE: | |
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3126 * 0 : A new item has been retrieved. |
0 | 3127 * EINVAL : A parameter is invalid. |
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3128 * ETIMEDOUT : The time out has passed and no item has been received. |
0 | 3129 */ |
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3130 int fd_fifo_timedget_int ( struct fifo * queue, void ** item, const struct timespec *abstime ); |
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3131 #define fd_fifo_timedget(queue, item, abstime) \ |
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3132 fd_fifo_timedget_int((queue), (void *)(item), (abstime)) |
0 | 3133 |
10
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3134 /* Dump a fifo list and optionally its inner elements -- beware of deadlocks! */ |
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3135 void fd_fifo_dump(int level, char * name, struct fifo * queue, void (*dump_item)(int level, void * item)); |
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3136 |
904
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3137 #ifdef __cplusplus |
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3138 } |
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3139 #endif |
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3140 |
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3141 #endif /* _LIBFDPROTO_H */ |