Mercurial > hg > freeDiameter
annotate include/freeDiameter/libfdproto.h @ 1186:56c36d1007b4
Further preparation of the DTLS integration. Some cleanups in the GNUTLS handling.
author | Sebastien Decugis <sdecugis@freediameter.net> |
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date | Fri, 07 Jun 2013 18:48:34 +0800 |
parents | 5dab72369dff |
children | f40de74bd1c7 |
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 #include <libgen.h> /* for basename */ |
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83 |
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84 #ifdef SWIG |
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85 #define _ATTRIBUTE_PRINTFLIKE_(_f,_v) |
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86 #else |
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87 #define _ATTRIBUTE_PRINTFLIKE_(_f,_v) __attribute__ ((format (printf, _f, _v))) |
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88 #endif /* SWIG */ |
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89 |
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90 /* Remove some deprecated warnings from some gnutls versions, when possible */ |
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91 #if defined(__GNUC__) |
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92 # define GCC_DIAG_DO_PRAGMA(x) _Pragma (#x) |
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93 # define GCC_DIAG_PRAGMA(x) GCC_DIAG_DO_PRAGMA(GCC diagnostic x) |
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94 # if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406 /* 4.6.x */ |
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95 # define GCC_DIAG_OFF(x) GCC_DIAG_PRAGMA(push) \ |
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96 GCC_DIAG_PRAGMA(ignored x) |
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97 # define GCC_DIAG_ON(x) GCC_DIAG_PRAGMA(pop) |
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98 # else /* older */ |
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99 # define GCC_DIAG_OFF(x) GCC_DIAG_PRAGMA(ignored x) |
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100 # define GCC_DIAG_ON(x) GCC_DIAG_PRAGMA(warning x) |
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101 # endif |
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102 #else |
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103 # define GCC_DIAG_OFF(x) |
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104 # define GCC_DIAG_ON(x) |
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105 #endif |
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106 |
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107 /*============================================================*/ |
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108 /* CONSTANTS */ |
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109 /*============================================================*/ |
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110 |
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111 #define DIAMETER_PORT 3868 |
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112 #define DIAMETER_SECURE_PORT 5658 |
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113 |
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114 |
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115 /*============================================================*/ |
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116 /* INIT */ |
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117 /*============================================================*/ |
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118 |
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119 /* This function must be called first, before any call to another library function */ |
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120 int fd_libproto_init(void); /* note if you are using libfdcore, it handles this already */ |
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121 |
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122 /* Call this one when the application terminates, to destroy internal threads */ |
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123 void fd_libproto_fini(void); |
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124 |
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125 /* Retrieve the version of the binary */ |
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126 extern const char fd_libproto_version[]; |
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127 |
0 | 128 /*============================================================*/ |
129 /* DEBUG */ | |
130 /*============================================================*/ | |
131 | |
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132 |
0 | 133 /* |
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134 * FUNCTION: fd_log |
0 | 135 * |
136 * PARAMETERS: | |
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137 * loglevel : Integer, how important the message is. Valid values are macros FD_LOG_* |
0 | 138 * format : Same format string as in the printf function |
139 * ... : Same list as printf | |
140 * | |
141 * DESCRIPTION: | |
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142 * Write information to log. |
0 | 143 * The format and arguments may contain UTF-8 encoded data. The |
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144 * output medium is expected to support this encoding. |
0 | 145 * |
146 * RETURN VALUE: | |
147 * None. | |
148 */ | |
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149 void fd_log ( int, const char *, ... ) _ATTRIBUTE_PRINTFLIKE_(2,3); |
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150 #ifndef SWIG |
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151 void fd_log_va( int, const char *, va_list); |
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152 #endif /* SWIG */ |
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153 |
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154 /* these are internal objects of the debug facility, |
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155 might be useful to control the behavior from outside */ |
0 | 156 extern pthread_mutex_t fd_log_lock; |
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157 extern char * fd_debug_one_function; |
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158 extern char * fd_debug_one_file; |
0 | 159 |
160 /* | |
161 * FUNCTION: fd_log_threadname | |
162 * | |
163 * PARAMETERS: | |
164 * name : \0-terminated string containing a name to identify the current thread. | |
165 * | |
166 * DESCRIPTION: | |
167 * Name the current thread, useful for debugging multi-threaded problems. | |
168 * | |
169 * This function assumes that a global thread-specific key called "fd_log_thname" exists | |
170 * in the address space of the current process. | |
171 * | |
172 * RETURN VALUE: | |
173 * None. | |
174 */ | |
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175 void fd_log_threadname ( const char * name ); |
0 | 176 extern pthread_key_t fd_log_thname; |
177 | |
178 /* | |
179 * FUNCTION: fd_log_time | |
180 * | |
181 * PARAMETERS: | |
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182 * ts : The timestamp to log, or NULL for "now" |
0 | 183 * buf : An array where the time must be stored |
184 * len : size of the buffer | |
185 * | |
186 * DESCRIPTION: | |
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187 * Writes the timestamp (in human readable format) in a buffer. |
0 | 188 * |
189 * RETURN VALUE: | |
190 * pointer to buf. | |
191 */ | |
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192 char * fd_log_time ( struct timespec * ts, char * buf, size_t len ); |
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194 /* |
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195 * FUNCTION: fd_log_handler_register |
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196 * MACRO: |
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197 * |
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198 * PARAMETERS: |
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199 * loglevel : priority of the message |
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200 * format : Same format string as in the printf function |
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201 * va_list : Argument list |
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202 * |
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203 * DESCRIPTION: |
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204 * Register an external method for logging purposes. |
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205 * |
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206 * RETURN VALUE: |
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207 * int : Success or failure |
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208 */ |
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209 int fd_log_handler_register ( void (*logger)(int loglevel, const char * format, va_list args) ); |
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210 |
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211 /* |
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212 * FUNCTION: fd_log_handler_unregister |
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213 * MACRO: |
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214 * |
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215 * PARAMETERS: |
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216 * |
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217 * DESCRIPTION: |
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218 * Unregister the external logging function. |
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219 * |
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220 * RETURN VALUE: |
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221 * int : Success or failure |
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222 */ |
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223 int fd_log_handler_unregister ( void ); |
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224 |
0 | 225 |
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226 /* All dump functions follow this same prototype: |
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227 * PARAMETERS: |
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228 * buf : *buf can be NULL on entry, it will be malloc'd. Otherwise it is realloc'd if needed. |
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229 * len : the current size of the buffer (in/out) |
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230 * offset: (optional) if provided, starts writing dump at offset in the buffer, and updated upon exit. if NULL, starts at offset O. |
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231 * |
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232 * RETURN VALUE: |
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233 * *buf upon success, NULL upon failure. |
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234 * |
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235 * REMARKS: |
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236 * - After the buffer has been used, it should be freed. |
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237 * - Depending on the function, the created string may be multi-line. However, it should never be terminated with a '\n'. |
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238 */ |
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239 #define DECLARE_FD_DUMP_PROTOTYPE( function_name, args... ) \ |
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240 char * function_name(char ** buf, size_t *len, size_t *offset, ##args) |
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241 |
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242 #ifdef SWIG |
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243 #define DECLARE_FD_DUMP_PROTOTYPE_simple( function_name ) \ |
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244 char * function_name(char ** buf, size_t *len, size_t *offset) |
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245 #endif /* SWIG */ |
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246 |
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247 |
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248 /* Helper functions for the *dump functions that add into a buffer */ |
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249 DECLARE_FD_DUMP_PROTOTYPE( fd_dump_extend, const char * format, ... ) _ATTRIBUTE_PRINTFLIKE_(4,5); |
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250 DECLARE_FD_DUMP_PROTOTYPE( fd_dump_extend_hexdump, uint8_t *data, size_t datalen, size_t trunc, size_t wrap ); |
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251 |
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252 |
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253 /* Some helpers macro for writing such *_dump routine */ |
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254 #define FD_DUMP_STD_PARAMS buf, len, offset |
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255 #define FD_DUMP_HANDLE_OFFSET() size_t o = 0; if (!offset) offset = &o |
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256 #define FD_DUMP_HANDLE_TRAIL() while ((*buf) && (*offset > 0) && ((*buf)[*offset - 1] == '\n')) { *offset -= 1; (*buf)[*offset] = '\0'; } |
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257 |
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258 |
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259 |
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260 /*============================================================*/ |
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261 /* DEBUG MACROS */ |
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262 /*============================================================*/ |
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263 |
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264 #ifndef ASSERT |
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265 #define ASSERT(x) assert(x) |
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266 #endif /* ASSERT */ |
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267 |
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268 /* log levels definitions, that are passed to the logger */ |
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269 #define FD_LOG_ANNOYING 0 /* very verbose loops and such "overkill" traces. Only active when the framework is compiled in DEBUG mode. */ |
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270 #define FD_LOG_DEBUG 1 /* Get a detailed sense of what is going on in the framework. Use this level for normal debug */ |
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271 #define FD_LOG_NOTICE 3 /* Normal execution states worth noting */ |
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272 #define FD_LOG_ERROR 5 /* Recoverable or expected error conditions */ |
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273 #define FD_LOG_FATAL 6 /* Unrecoverable error, e.g. malloc fail, etc. that requires the framework to shutdown */ |
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274 |
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275 /* The level used by the default logger, can be changed by command-line arguments. Ignored for other loggers. */ |
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276 extern int fd_g_debug_lvl; |
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277 |
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278 /* Some portability code to get nice function name in __PRETTY_FUNCTION__ */ |
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279 #if (!defined( __func__)) && (__STDC_VERSION__ < 199901L) |
0 | 280 # if __GNUC__ >= 2 |
281 # define __func__ __FUNCTION__ | |
282 # else /* __GNUC__ >= 2 */ | |
283 # define __func__ "<unknown>" | |
284 # endif /* __GNUC__ >= 2 */ | |
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285 #endif /*(!defined( __func__)) && (__STDC_VERSION__ < 199901L) */ |
0 | 286 #ifndef __PRETTY_FUNCTION__ |
287 #define __PRETTY_FUNCTION__ __func__ | |
288 #endif /* __PRETTY_FUNCTION__ */ | |
289 | |
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290 /* A version of __FILE__ without the full path */ |
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291 static char * file_bname = NULL; |
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292 static char * file_bname_init(char * full) { file_bname = basename(full); return file_bname; } |
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293 #define __STRIPPED_FILE__ (file_bname ?: file_bname_init((char *)__FILE__)) |
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294 |
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295 |
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296 |
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297 /* In DEBUG mode, we add meta-information along each trace. This makes multi-threading problems easier to debug. */ |
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298 #ifdef DEBUG |
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299 # define STD_TRACE_FMT_STRING "pid:%s in %s@%s:%d: " |
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300 # define STD_TRACE_FMT_ARGS , ((char *)pthread_getspecific(fd_log_thname) ?: "unnamed"), __PRETTY_FUNCTION__, __STRIPPED_FILE__, __LINE__ |
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301 #else /* DEBUG */ |
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302 # define STD_TRACE_FMT_STRING "" |
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303 # define STD_TRACE_FMT_ARGS |
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304 #endif /* DEBUG */ |
0 | 305 |
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306 /************************* |
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307 The general debug macro |
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308 *************************/ |
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309 #define LOG(printlevel,format,args... ) \ |
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310 fd_log((printlevel), STD_TRACE_FMT_STRING format STD_TRACE_FMT_ARGS, ## args) |
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311 |
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312 /* |
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313 * Use the following macros in the code to get traces with location & pid in debug mode: |
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314 */ |
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315 #ifdef DEBUG |
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316 # define LOG_A(format,args... ) \ |
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317 LOG(FD_LOG_ANNOYING,format,##args) |
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318 #else /* DEBUG */ |
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319 # define LOG_A(format,args... ) /* not defined in release */ |
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320 #endif /* DEBUG */ |
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321 |
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322 /* Debug information useful to follow in detail what is going on */ |
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323 #define LOG_D(format,args... ) \ |
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324 LOG(FD_LOG_DEBUG, format, ##args) |
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325 |
972 | 326 /* Report a normal message that is useful for normal admin monitoring */ |
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327 #define LOG_N(format,args... ) \ |
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328 LOG(FD_LOG_NOTICE, format,##args) |
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329 |
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330 /* Report an error */ |
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331 #define LOG_E(format,args... ) \ |
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332 LOG(FD_LOG_ERROR, format, ##args) |
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333 |
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334 /* Report a fatal error */ |
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335 #define LOG_F(format,args... ) \ |
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336 LOG(FD_LOG_FATAL, format, ##args) |
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337 |
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338 |
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339 /************* |
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340 Derivatives |
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341 ************/ |
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342 /* Trace a binary buffer content */ |
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343 #define LOG_BUFFER(printlevel, prefix, buf, bufsz, suffix ) { \ |
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344 int __i; \ |
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345 size_t __sz = (size_t)(bufsz); \ |
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346 uint8_t * __buf = (uint8_t *)(buf); \ |
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347 char __strbuf[1024+1]; \ |
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348 for (__i = 0; (__i < __sz) && (__i<(sizeof(__strbuf)/2)); __i++) { \ |
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349 sprintf(__strbuf + (2 * __i), "%02hhx", __buf[__i]); \ |
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350 } \ |
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351 fd_log(printlevel, STD_TRACE_FMT_STRING "%s%s%s" STD_TRACE_FMT_ARGS, \ |
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352 (prefix), __strbuf, (suffix)); \ |
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353 } |
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354 |
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355 /* Split a multi-line buffer into separate calls to the LOG function. */ |
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356 #define LOG_SPLIT(printlevel, per_line_prefix, mlbuf, per_line_suffix ) { \ |
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357 char * __line = (mlbuf), *__next; \ |
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358 char * __p = (per_line_prefix), *__s = (per_line_suffix); \ |
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359 while ((__next = strchr(__line, '\n')) != NULL) { \ |
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360 LOG(printlevel, "%s%.*s%s", __p ?:"", (int)(__next - __line), __line, __s ?:""); \ |
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361 __line = __next + 1; \ |
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362 } \ |
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363 LOG(printlevel, "%s%s%s", __p ?:"", __line, __s ?:""); \ |
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364 } |
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365 |
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366 /* Helper for function entry -- for very detailed trace of the execution */ |
0 | 367 #define TRACE_ENTRY(_format,_args... ) \ |
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368 LOG_A("[enter] %s(" _format ") {" #_args "}", __PRETTY_FUNCTION__, ##_args ); |
0 | 369 |
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370 /* Helper for debugging by adding traces -- for debuging a specific location of the code */ |
0 | 371 #define TRACE_HERE() \ |
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372 LOG_F(" -- debug checkpoint %d -- ", fd_breakhere()); |
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373 int fd_breakhere(void); |
0 | 374 |
972 | 375 /* Helper for tracing the CHECK_* macros below -- very very verbose code execution! */ |
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376 #define TRACE_CALL( str... ) \ |
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377 if ((fd_debug_one_function && !strcmp(fd_debug_one_function, __PRETTY_FUNCTION__)) \ |
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378 || (fd_debug_one_file && !strcmp(fd_debug_one_file, __STRIPPED_FILE__) ) ) { \ |
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379 LOG_A( str ); \ |
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380 } |
0 | 381 |
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382 /* For development only, to keep track of TODO locations in the code */ |
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383 #ifndef ERRORS_ON_TODO |
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384 # define TODO( _msg, _args... ) \ |
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385 LOG_F( "TODO: " _msg , ##_args); |
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386 #else /* ERRORS_ON_TODO */ |
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387 # define TODO( _msg, _args... ) \ |
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388 "TODO" = _msg ## _args; /* just a stupid compilation error to spot the todo */ |
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389 #endif /* ERRORS_ON_TODO */ |
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390 |
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391 |
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392 /*============================================================*/ |
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393 /* ERROR CHECKING MACRO */ |
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394 /*============================================================*/ |
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395 |
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396 /* Macros to check a return value and branch out in case of error. |
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397 * These macro additionally provide the logging information. |
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398 * |
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399 * The name "__ret__" is always available in the __fallback__ parameter and contains the error code. |
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400 */ |
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401 |
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402 #define CHECK_PRELUDE(__call__) \ |
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403 int __ret__; \ |
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404 TRACE_CALL("Check: %s", #__call__ ); \ |
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405 __ret__ = (__call__) |
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406 |
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407 #define DEFAULT_FB return __ret__; |
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408 |
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409 /* System check: error case if < 0, error value in errno */ |
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410 #define CHECK_SYS_GEN( faillevel, __call__, __fallback__ ) { \ |
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411 CHECK_PRELUDE(__call__); \ |
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412 if (__ret__ < 0) { \ |
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413 __ret__ = errno; \ |
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414 LOG(faillevel, "ERROR: in '%s' :\t%s", #__call__ , strerror(__ret__)); \ |
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415 __fallback__; \ |
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416 } \ |
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417 } |
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418 |
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419 |
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420 /* Check the return value of a function and execute fallback in case of error or special value */ |
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421 #define CHECK_FCT_GEN2( faillevel, __call__, __speval__, __fallback1__, __fallback2__ ) { \ |
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422 CHECK_PRELUDE(__call__); \ |
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423 if (__ret__ != 0) { \ |
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424 if (__ret__ == (__speval__)) { \ |
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425 __fallback1__; \ |
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426 } else { \ |
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427 LOG(faillevel, "ERROR: in '%s' :\t%s", #__call__ , strerror(__ret__)); \ |
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428 __fallback2__; \ |
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429 } \ |
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430 } \ |
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431 } |
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432 |
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433 /* Check the return value of a function and execute fallback in case of error (return value different from 0) */ |
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434 #define CHECK_FCT_GEN( faillevel, __call__, __fallback__) \ |
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435 CHECK_FCT_GEN2( faillevel, (__call__), 0, , (__fallback__) ) |
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436 |
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437 /* Check that a memory allocator did not return NULL, otherwise log an error and execute fallback */ |
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438 #define CHECK_MALLOC_GEN( faillevel, __call__, __fallback__ ) { \ |
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439 void * __ptr__; \ |
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440 TRACE_CALL("Check: %s", #__call__ ); \ |
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441 __ptr__ = (void *)(__call__); \ |
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442 if (__ptr__ == NULL) { \ |
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443 int __ret__ = errno; \ |
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444 LOG(faillevel, "ERROR: in '%s' :\t%s", #__call__ , strerror(__ret__)); \ |
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445 __fallback__; \ |
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446 } \ |
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447 } |
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448 |
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449 /* Check parameters at function entry, execute fallback on error */ |
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450 #define CHECK_PARAMS_GEN( faillevel, __bool__, __fallback__ ) { \ |
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451 TRACE_CALL("Check: %s", #__bool__ ); \ |
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452 if ( ! (__bool__) ) { \ |
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453 int __ret__ = EINVAL; \ |
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454 LOG(faillevel, "ERROR: invalid parameter '%s'", #__bool__ ); \ |
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455 __fallback__; \ |
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456 } \ |
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457 } |
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458 |
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459 |
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460 /*============================================================*/ |
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461 /* COMPATIBILITY MACROS, TO BE REMOVED */ |
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462 /*============================================================*/ |
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463 /* Redefine the old macros for transition of the code */ |
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464 #ifndef EXCLUDE_DEPRECATED |
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465 |
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466 #define MARK_DEPRECATED /* __attribute__ ((deprecated)) */ |
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467 |
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468 enum old_levels { |
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469 NONE = 0, |
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470 INFO = 1, |
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471 FULL = 2, |
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472 ANNOYING = 4, |
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473 FCTS = 6, |
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474 CALL = 9 |
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475 } MARK_DEPRECATED; |
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476 |
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477 static __inline__ int old_TRACE_BOOL( enum old_levels level, const char * file, const char * func ) MARK_DEPRECATED |
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478 { |
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479 if ((fd_debug_one_function && !strcmp(fd_debug_one_function, func)) |
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480 || (fd_debug_one_file && !strcmp(fd_debug_one_file, file) )) |
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481 return 2; /* Level override */ |
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482 if (level <= fd_g_debug_lvl) |
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483 return 1; /* Normal level */ |
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484 return 0; /* No trace */ |
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485 } |
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486 #define TRACE_BOOL(level) old_TRACE_BOOL((level), __STRIPPED_FILE__, __PRETTY_FUNCTION__) |
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487 |
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488 #ifndef SWIG |
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489 static __inline__ void fd_log_deprecated( int level, const char *format, ... ) MARK_DEPRECATED |
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490 { |
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491 va_list ap; |
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492 va_start(ap, format); |
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493 fd_log_va(level, format, ap); |
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494 va_end(ap); |
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495 } |
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496 #else /* SWIG */ |
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497 void fd_log_deprecated( int level, const char *format, ... ); |
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498 #endif /* SWIG */ |
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499 static __inline__ void replace_me() MARK_DEPRECATED { } |
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500 |
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501 #define TRACE_BUFFER(...) replace_me(); |
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502 #define TRACE_NOTICE(...) replace_me(); |
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503 |
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504 |
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505 /* Use the LOG_* instead, or use the new *_dump functions when dumping an object */ |
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506 #define fd_log_debug(format,args...) fd_log_deprecated(FD_LOG_DEBUG, format, ## args) |
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507 #define fd_log_notice(format,args...) fd_log_deprecated(FD_LOG_NOTICE, format, ## args) |
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508 #define fd_log_error(format,args...) fd_log_deprecated(FD_LOG_ERROR, format, ## args) |
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509 |
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510 /* old macro for traces. To be replaced by appropriate LOG_* macros. */ |
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511 # define TRACE_DEBUG(oldlevel, format,args... ) { \ |
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512 int __l__; \ |
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513 if ((__l__ = TRACE_BOOL(oldlevel))) { \ |
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514 if (oldlevel <= NONE) { LOG_E(format,##args); } \ |
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515 else if (oldlevel <= INFO) { LOG_N(format,##args); } \ |
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516 else if (__l__ == 2) { LOG_N(format,##args); } \ |
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517 else if (oldlevel <= FULL) { LOG_D(format,##args); } \ |
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518 else { LOG_A(format,##args); } \ |
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519 } } |
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520 |
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521 /* the following macro must be replaced with LOG_E or LOG_F */ |
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522 # define TRACE_ERROR fd_log_error |
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523 |
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524 |
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525 /* The following macros are missing the faillevel information, which indicates at what log level the error case should be displayed. */ |
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526 # define CHECK_SYS_DO( __call__, __fallback__ ) { \ |
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527 CHECK_PRELUDE(__call__); \ |
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528 if (__ret__ < 0) { \ |
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529 __ret__ = errno; \ |
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530 TRACE_ERROR("ERROR: in '%s' :\t%s", #__call__ , strerror(__ret__)); \ |
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531 __fallback__; \ |
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532 } \ |
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533 } |
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534 |
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535 # define CHECK_SYS( __call__ ) \ |
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536 CHECK_SYS_DO( (__call__), return __ret__ ) |
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537 |
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538 |
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539 # define CHECK_POSIX_DO2( __call__, __speval__, __fallback1__, __fallback2__ ) { \ |
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540 CHECK_PRELUDE(__call__); \ |
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541 if (__ret__ != 0) { \ |
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542 if (__ret__ == (__speval__)) { \ |
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543 __fallback1__; \ |
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544 } else { \ |
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545 TRACE_ERROR("ERROR: in '%s' :\t%s", #__call__ , strerror(__ret__)); \ |
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546 __fallback2__; \ |
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547 } \ |
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548 } \ |
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549 } |
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550 |
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551 # define CHECK_POSIX_DO( __call__, __fallback__ ) \ |
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552 CHECK_POSIX_DO2( (__call__), 0, , __fallback__ ) |
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553 |
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554 # define CHECK_POSIX( __call__ ) \ |
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555 CHECK_POSIX_DO( (__call__), return __ret__ ) |
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556 |
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557 # define CHECK_MALLOC_DO( __call__, __fallback__ ) { \ |
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558 void * __ptr__; \ |
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559 TRACE_CALL("Check: %s", #__call__ ); \ |
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560 __ptr__ = (void *)(__call__); \ |
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561 if (__ptr__ == NULL) { \ |
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562 int __ret__ = errno; \ |
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563 TRACE_ERROR("ERROR: in '%s' :\t%s", #__call__ , strerror(__ret__)); \ |
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564 __fallback__; \ |
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565 } \ |
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566 } |
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567 |
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568 # define CHECK_MALLOC( __call__ ) \ |
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569 CHECK_MALLOC_DO( (__call__), return __ret__ ) |
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570 |
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571 # define CHECK_PARAMS_DO( __bool__, __fallback__ ) { \ |
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572 TRACE_CALL("Check: %s", #__bool__ ); \ |
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573 if ( ! (__bool__) ) { \ |
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574 int __ret__ = EINVAL; \ |
1119
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575 TRACE_ERROR("ERROR: Invalid parameter '%s', %d", #__bool__, __ret__ ); \ |
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576 __fallback__; \ |
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577 } \ |
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578 } |
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579 |
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580 # define CHECK_PARAMS( __bool__ ) \ |
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581 CHECK_PARAMS_DO( (__bool__), return __ret__ ) |
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582 |
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583 # define CHECK_FCT_DO CHECK_POSIX_DO |
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584 # define CHECK_FCT CHECK_POSIX |
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585 |
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586 #endif /* EXCLUDE_DEPRECATED */ |
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587 |
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588 |
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589 /*============================================================*/ |
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590 /* Optimized code: remove all debugging code */ |
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591 /*============================================================*/ |
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592 #ifdef STRIP_DEBUG_CODE |
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593 #undef LOG_D |
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594 #undef LOG_N |
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595 #undef LOG_E |
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596 #undef LOG_F |
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597 #undef LOG_BUFFER |
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598 |
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599 #define LOG_D(format,args... ) /* noop */ |
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600 #define LOG_N(format,args...) fd_log(FD_LOG_NOTICE, format, ## args) |
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601 #define LOG_E(format,args...) fd_log(FD_LOG_ERROR, format, ## args) |
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602 #define LOG_F(format,args...) fd_log(FD_LOG_FATAL, format, ## args) |
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603 #define LOG_BUFFER(printlevel, level, prefix, buf, bufsz, suffix ) { \ |
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604 if (printlevel > FD_LOG_DEBUG) { \ |
226
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605 int __i; \ |
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606 size_t __sz = (size_t)(bufsz); \ |
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607 uint8_t * __buf = (uint8_t *)(buf); \ |
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608 char * __strbuf[1024+1]; \ |
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609 for (__i = 0; (__i < __sz) && (__i<(sizeof(__strbuf)/2); __i++) { \ |
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610 sprintf(__strbuf + (2 * __i), "%02.2hhx", __buf[__i]); \ |
226
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611 } \ |
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612 fd_log(printlevel, prefix"%s"suffix, __strbuf); \ |
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613 } |
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614 #endif /* STRIP_DEBUG_CODE */ |
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615 |
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616 /*============================================================*/ |
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617 /* OTHER MACROS */ |
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618 /*============================================================*/ |
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619 /* helper macros (pre-processor hacks to allow macro arguments) */ |
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620 #define __tostr( arg ) #arg |
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621 #define _stringize( arg ) __tostr( arg ) |
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622 #define __agr( arg1, arg2 ) arg1 ## arg2 |
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623 #define _aggregate( arg1, arg2 ) __agr( arg1, arg2 ) |
226
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624 |
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625 /* Some aliases to socket addresses structures */ |
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626 #define sSS struct sockaddr_storage |
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627 #define sSA struct sockaddr |
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628 #define sSA4 struct sockaddr_in |
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629 #define sSA6 struct sockaddr_in6 |
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630 |
246
6418a188c1b5
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631 /* The sockaddr length of a sSS structure */ |
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632 #define sSAlen( _sa_ ) \ |
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633 ( (socklen_t) ( (((sSA *)_sa_)->sa_family == AF_INET) ? (sizeof(sSA4)) : \ |
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634 ((((sSA *)_sa_)->sa_family == AF_INET6) ? (sizeof(sSA6)) : \ |
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|
635 0 ) ) ) |
1122
d4371b7aa0ff
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|
636 #define sSAport( _sa_ ) \ |
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|
637 ( (socklen_t) ( (((sSA *)_sa_)->sa_family == AF_INET) ? (((sSA4 *)(_sa_))->sin_port) : \ |
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|
638 ((((sSA *)_sa_)->sa_family == AF_INET6) ? (((sSA6 *)(_sa_))->sin6_port) : \ |
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|
639 0 ) ) ) |
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|
640 |
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|
641 DECLARE_FD_DUMP_PROTOTYPE(fd_sa_dump, sSA * sa, int flags); |
1103
d8591b1c56cd
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diff
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|
642 #define sSA_DUMP_STRLEN (INET6_ADDRSTRLEN + 1 + 32 + 2) |
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|
643 void fd_sa_sdump_numeric(char * buf /* must be at least sSA_DUMP_STRLEN */, sSA * sa); |
0 | 644 |
645 | |
20
277ec00d793e
Backup before typhoon... Progress on server side
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14
diff
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|
646 /* A l4 protocol name (TCP / SCTP) */ |
33
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647 #ifdef DISABLE_SCTP |
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648 #define IPPROTO_NAME( _proto ) \ |
e6fcdf12b9a0
Added a lot of TODOs :)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
29
diff
changeset
|
649 (((_proto) == IPPROTO_TCP) ? "TCP" : \ |
e6fcdf12b9a0
Added a lot of TODOs :)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
29
diff
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|
650 "Unknown") |
e6fcdf12b9a0
Added a lot of TODOs :)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
29
diff
changeset
|
651 #else /* DISABLE_SCTP */ |
20
277ec00d793e
Backup before typhoon... Progress on server side
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
14
diff
changeset
|
652 #define IPPROTO_NAME( _proto ) \ |
277ec00d793e
Backup before typhoon... Progress on server side
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
14
diff
changeset
|
653 ( ((_proto) == IPPROTO_TCP) ? "TCP" : \ |
277ec00d793e
Backup before typhoon... Progress on server side
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
14
diff
changeset
|
654 (((_proto) == IPPROTO_SCTP) ? "SCTP" : \ |
277ec00d793e
Backup before typhoon... Progress on server side
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
14
diff
changeset
|
655 "Unknown")) |
33
e6fcdf12b9a0
Added a lot of TODOs :)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
29
diff
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|
656 #endif /* DISABLE_SCTP */ |
20
277ec00d793e
Backup before typhoon... Progress on server side
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
changeset
|
657 |
0 | 658 /* Define the value of IP loopback address */ |
659 #ifndef INADDR_LOOPBACK | |
660 #define INADDR_LOOPBACK inet_addr("127.0.0.1") | |
661 #endif /* INADDR_LOOPBACK */ | |
662 | |
512
16224de837fd
Fix problem reported by ????? ????????? on dev@freediameter.net
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
454
diff
changeset
|
663 #ifndef INADDR_BROADCAST |
16224de837fd
Fix problem reported by ????? ????????? on dev@freediameter.net
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
454
diff
changeset
|
664 #define INADDR_BROADCAST ((in_addr_t) 0xffffffff) |
16224de837fd
Fix problem reported by ????? ????????? on dev@freediameter.net
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
454
diff
changeset
|
665 #endif /* INADDR_BROADCAST */ |
16224de837fd
Fix problem reported by ????? ????????? on dev@freediameter.net
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
454
diff
changeset
|
666 |
134
6b2989c066a6
Fixed loopback test for correct network order
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
131
diff
changeset
|
667 /* An IP equivalent to IN6_IS_ADDR_LOOPBACK */ |
6b2989c066a6
Fixed loopback test for correct network order
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
131
diff
changeset
|
668 #ifndef IN_IS_ADDR_LOOPBACK |
6b2989c066a6
Fixed loopback test for correct network order
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
131
diff
changeset
|
669 #define IN_IS_ADDR_LOOPBACK(a) \ |
6b2989c066a6
Fixed loopback test for correct network order
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
131
diff
changeset
|
670 ((((long int) (a)->s_addr) & ntohl(0xff000000)) == ntohl(0x7f000000)) |
6b2989c066a6
Fixed loopback test for correct network order
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
131
diff
changeset
|
671 #endif /* IN_IS_ADDR_LOOPBACK */ |
6b2989c066a6
Fixed loopback test for correct network order
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
131
diff
changeset
|
672 |
135
bbb8ddba4c85
Filter out more invalid addresses
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
134
diff
changeset
|
673 /* An IP equivalent to IN6_IS_ADDR_UNSPECIFIED */ |
bbb8ddba4c85
Filter out more invalid addresses
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
134
diff
changeset
|
674 #ifndef IN_IS_ADDR_UNSPECIFIED |
bbb8ddba4c85
Filter out more invalid addresses
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
134
diff
changeset
|
675 #define IN_IS_ADDR_UNSPECIFIED(a) \ |
bbb8ddba4c85
Filter out more invalid addresses
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
134
diff
changeset
|
676 (((long int) (a)->s_addr) == 0x00000000) |
bbb8ddba4c85
Filter out more invalid addresses
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
134
diff
changeset
|
677 #endif /* IN_IS_ADDR_UNSPECIFIED */ |
bbb8ddba4c85
Filter out more invalid addresses
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
134
diff
changeset
|
678 |
0 | 679 /* create a V4MAPPED address */ |
680 #define IN6_ADDR_V4MAP( a6, a4 ) { \ | |
681 ((uint32_t *)(a6))[0] = 0; \ | |
682 ((uint32_t *)(a6))[1] = 0; \ | |
683 ((uint32_t *)(a6))[2] = htonl(0xffff); \ | |
684 ((uint32_t *)(a6))[3] = (uint32_t)(a4); \ | |
685 } | |
686 | |
687 /* Retrieve a v4 value from V4MAPPED address ( takes a s6_addr as param) */ | |
688 #define IN6_ADDR_V4UNMAP( a6 ) \ | |
689 (((in_addr_t *)(a6))[3]) | |
690 | |
691 | |
692 /* We provide macros to convert 64 bit values to and from network byte-order, on systems where it is not already provided. */ | |
226
406f74f0789b
Few cosmetics changes
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
216
diff
changeset
|
693 #ifndef HAVE_NTOHLL /* Defined by the cmake step, if the ntohll symbol is defined on the system */ |
0 | 694 # if HOST_BIG_ENDIAN |
695 /* In big-endian systems, we don't have to change the values, since the order is the same as network */ | |
696 # define ntohll(x) (x) | |
697 # define htonll(x) (x) | |
698 # else /* HOST_BIG_ENDIAN */ | |
699 /* For these systems, we must reverse the bytes. Use ntohl and htonl on sub-32 blocs, and inverse these blocs. */ | |
700 # define ntohll(x) (typeof (x))( (((uint64_t)ntohl( (uint32_t)(x))) << 32 ) | ((uint64_t) ntohl( ((uint64_t)(x)) >> 32 ))) | |
701 # define htonll(x) (typeof (x))( (((uint64_t)htonl( (uint32_t)(x))) << 32 ) | ((uint64_t) htonl( ((uint64_t)(x)) >> 32 ))) | |
702 # endif /* HOST_BIG_ENDIAN */ | |
703 #endif /* HAVE_NTOHLL */ | |
704 | |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
705 /* This macro will give the next multiple of 4 for an integer (used for padding sizes of AVP). */ |
0 | 706 #define PAD4(_x) ((_x) + ( (4 - (_x)) & 3 ) ) |
707 | |
226
406f74f0789b
Few cosmetics changes
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
216
diff
changeset
|
708 /* Useful to display any value as (safe) ASCII (will garbage UTF-8 output...) */ |
0 | 709 #define ASCII(_c) ( ((_c < 32) || (_c > 127)) ? ( _c ? '?' : ' ' ) : _c ) |
710 | |
711 /* Compare timespec structures */ | |
712 #define TS_IS_INFERIOR( ts1, ts2 ) \ | |
713 ( ((ts1)->tv_sec < (ts2)->tv_sec ) \ | |
5
c2d2729e3603
Completed new session module tests; some bugs fixed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
3
diff
changeset
|
714 || (((ts1)->tv_sec == (ts2)->tv_sec ) && ((ts1)->tv_nsec < (ts2)->tv_nsec) )) |
0 | 715 |
895
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
716 /* Compute diff between two timespecs (pointers) */ |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
717 #define TS_DIFFERENCE( tsdiff, tsstart, tsend ) { \ |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
718 if ((tsend)->tv_nsec < (tsstart)->tv_nsec ) { \ |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
719 (tsdiff)->tv_sec = (tsend)->tv_sec - (tsstart)->tv_sec - 1; \ |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
720 (tsdiff)->tv_nsec = (tsend)->tv_nsec + 1000000000 - (tsstart)->tv_nsec; \ |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
721 } else { \ |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
722 (tsdiff)->tv_sec = (tsend)->tv_sec - (tsstart)->tv_sec; \ |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
723 (tsdiff)->tv_nsec = (tsend)->tv_nsec - (tsstart)->tv_nsec; \ |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
724 }} |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
725 |
fbf77629cb7b
Added received and sent timestamps in the messages; added logs on emission and reception
Sebastien Decugis <sdecugis@freediameter.net>
parents:
894
diff
changeset
|
726 |
542
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
512
diff
changeset
|
727 /* This gives a good size for buffered reads */ |
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
512
diff
changeset
|
728 #ifndef BUFSIZ |
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
512
diff
changeset
|
729 #define BUFSIZ 96 |
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
512
diff
changeset
|
730 #endif /* BUFSIZ */ |
0b6cee362f5d
Enforce validation of local certificate upon daemon start.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
512
diff
changeset
|
731 |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
732 /* This gives the length of a const string */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
733 #define CONSTSTRLEN( str ) (sizeof(str) - 1) |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
734 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
735 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
736 /*============================================================*/ |
836
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
737 /* PORTABILITY */ |
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
738 /*============================================================*/ |
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
739 #ifndef HAVE_CLOCK_GETTIME |
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
740 #define CLOCK_REALTIME 0 |
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
741 #include <sys/time.h> |
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
742 int clock_gettime(int clk_id, struct timespec* ts); |
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
743 #endif /* HAVE_CLOCK_GETTIME */ |
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
744 |
849
d7f940afd933
New portability function: strndup
Sebastien Decugis <sdecugis@freediameter.net>
parents:
836
diff
changeset
|
745 #ifndef HAVE_STRNDUP |
850
12e7fcbc1b21
Fix previous commit
Sebastien Decugis <sdecugis@freediameter.net>
parents:
849
diff
changeset
|
746 char * strndup (char *str, size_t len); |
849
d7f940afd933
New portability function: strndup
Sebastien Decugis <sdecugis@freediameter.net>
parents:
836
diff
changeset
|
747 #endif /* HAVE_STRNDUP */ |
836
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
748 |
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
749 |
da97a5aa7976
Add replacement for clock_gettime (for Mac OS) -- ticket #38
Sebastien Decugis <sdecugis@freediameter.net>
parents:
810
diff
changeset
|
750 /*============================================================*/ |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
751 /* BINARY STRINGS */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
752 /*============================================================*/ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
753 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
754 /* Compute a hash value of a binary string. |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
755 The hash must remain local to this machine, there is no guarantee that same input |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
756 will give same output on a different system (endianness) */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
757 uint32_t fd_os_hash ( uint8_t * string, size_t len ); |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
758 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
759 /* This type used for binary strings that contain no \0 except as their last character. |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
760 It means some string operations can be used on it. */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
761 typedef uint8_t * os0_t; |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
705
diff
changeset
|
762 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
763 /* Same as strdup but for os0_t strings */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
764 os0_t os0dup_int(os0_t s, size_t l); |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
705
diff
changeset
|
765 #define os0dup( _s, _l) (void *)os0dup_int((os0_t)(_s), _l) |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
705
diff
changeset
|
766 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
767 /* Check that an octet string value can be used as os0_t */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
768 static __inline__ int fd_os_is_valid_os0(uint8_t * os, size_t oslen) { |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
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diff
changeset
|
769 /* The only situation where it is not valid is when it contains a \0 inside the octet string */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
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diff
changeset
|
770 return (memchr(os, '\0', oslen) == NULL); |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
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diff
changeset
|
771 } |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
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diff
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|
772 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
773 /* The following type denotes a verified DiameterIdentity value (that contains only pure letters, digits, hyphen, dot) */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
705
diff
changeset
|
774 typedef char * DiamId_t; |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
705
diff
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|
775 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
776 /* Maximum length of a hostname we accept */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
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diff
changeset
|
777 #ifndef HOST_NAME_MAX |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
778 #define HOST_NAME_MAX 512 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
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diff
changeset
|
779 #endif /* HOST_NAME_MAX */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
780 |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
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781 /* Check if a binary string contains a valid Diameter Identity value. |
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782 rfc3588 states explicitely that such a Diameter Identity consists only of ASCII characters. */ |
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783 int fd_os_is_valid_DiameterIdentity(uint8_t * os, size_t ossz); |
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784 |
717
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785 /* The following function validates a string as a Diameter Identity or applies the IDNA transformation on it |
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786 if *inoutsz is != 0 on entry, *id may not be \0-terminated. |
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787 memory has the following meaning: 0: *id can be realloc'd. 1: *id must be malloc'd on output (was static) |
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788 */ |
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789 int fd_os_validate_DiameterIdentity(char ** id, size_t * inoutsz, int memory); |
706
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790 |
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791 /* Create an order relationship for binary strings (not needed to be \0 terminated). |
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792 It does NOT mimic strings relationships so that it is more efficient. It is case sensitive. |
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793 (the strings are actually first ordered by their lengh, then by their bytes contents) |
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794 returns: -1 if os1 < os2; +1 if os1 > os2; 0 if they are equal */ |
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795 int fd_os_cmp_int(os0_t os1, size_t os1sz, os0_t os2, size_t os2sz); |
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796 #define fd_os_cmp(_o1, _l1, _o2, _l2) fd_os_cmp_int((os0_t)(_o1), _l1, (os0_t)(_o2), _l2) |
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797 |
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798 /* A roughly case-insensitive variant, which actually only compares ASCII chars (0-127) in a case-insentitive maneer |
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799 -- it does not support locales where a lowercase letter uses more space than upper case, such as ? -> ss |
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800 It is slower than fd_os_cmp. |
706
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801 Note that the result is NOT the same as strcasecmp !!! |
738
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802 |
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803 This function gives the same order as fd_os_cmp, except when it finds 2 strings to be equal. |
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804 However this is not always sufficient: |
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805 for example fd_os_cmp gives: "Ac" < "aB" < "aa" |
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806 if you attempt to fd_os_almostcasesrch "Aa" you will actually have to go past "aB" which is > "Aa". |
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807 Therefore you can use the maybefurther parameter. |
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808 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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809 and 0 if we are sure that it is not the case. |
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810 When looping through a list of fd_os_cmp classified values, this parameter must be used to stop looping, in addition to the comp result. |
706
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811 */ |
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812 int fd_os_almostcasesrch_int(uint8_t * os1, size_t os1sz, uint8_t * os2, size_t os2sz, int * maybefurther); |
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813 #define fd_os_almostcasesrch(_o1, _l1, _o2, _l2, _mb) fd_os_almostcasesrch_int((os0_t)(_o1), _l1, (os0_t)(_o2), _l2, _mb) |
0 | 814 |
717
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815 /* Analyze a DiameterURI and return its components. |
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816 Return EINVAL if the URI is not valid. |
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817 *diamid is malloc'd on function return and must be freed (it is processed by fd_os_validate_DiameterIdentity). |
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818 *secure is 0 (no security) or 1 (security enabled) on return. |
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819 *port is 0 (default) or a value in host byte order on return. |
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820 *transport is 0 (default) or IPPROTO_* on return. |
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821 *proto is 0 (default) or 'd' (diameter), 'r' (radius), or 't' (tacacs+) on return. |
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822 */ |
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823 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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824 |
0 | 825 /*============================================================*/ |
826 /* THREADS */ | |
827 /*============================================================*/ | |
828 | |
829 /* Terminate a thread */ | |
830 static __inline__ int fd_thr_term(pthread_t * th) | |
831 { | |
832 void * th_ret = NULL; | |
833 | |
834 CHECK_PARAMS(th); | |
835 | |
836 /* Test if it was already terminated */ | |
837 if (*th == (pthread_t)NULL) | |
838 return 0; | |
839 | |
840 /* Cancel the thread if it is still running - ignore error if it was already terminated */ | |
841 (void) pthread_cancel(*th); | |
842 | |
843 /* Then join the thread */ | |
183
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844 CHECK_POSIX( pthread_join(*th, &th_ret) ); |
0 | 845 |
181
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846 if (th_ret == PTHREAD_CANCELED) { |
1027
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847 TRACE_DEBUG(ANNOYING, "The thread %p was canceled", (void *)*th); |
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848 } else { |
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849 TRACE_DEBUG(CALL, "The thread %p returned %p", (void *)*th, th_ret); |
0 | 850 } |
851 | |
852 /* Clean the location */ | |
853 *th = (pthread_t)NULL; | |
854 | |
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855 return 0; |
0 | 856 } |
857 | |
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858 |
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859 /************* |
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860 Cancelation cleanup handlers for common objects |
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861 *************/ |
0 | 862 static __inline__ void fd_cleanup_mutex( void * mutex ) |
863 { | |
864 CHECK_POSIX_DO( pthread_mutex_unlock((pthread_mutex_t *)mutex), /* */); | |
865 } | |
866 | |
867 static __inline__ void fd_cleanup_rwlock( void * rwlock ) | |
868 { | |
869 CHECK_POSIX_DO( pthread_rwlock_unlock((pthread_rwlock_t *)rwlock), /* */); | |
870 } | |
871 | |
872 static __inline__ void fd_cleanup_buffer( void * buffer ) | |
873 { | |
874 free(buffer); | |
875 } | |
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876 static __inline__ void fd_cleanup_socket(void * sockptr) |
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877 { |
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878 if (sockptr && (*(int *)sockptr > 0)) { |
179 | 879 CHECK_SYS_DO( close(*(int *)sockptr), /* ignore */ ); |
184 | 880 *(int *)sockptr = -1; |
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881 } |
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882 } |
0 | 883 |
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884 |
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885 /*============================================================*/ |
0 | 886 /* LISTS */ |
887 /*============================================================*/ | |
888 | |
889 /* The following structure represents a chained list element */ | |
890 struct fd_list { | |
891 struct fd_list *next; /* next element in the list */ | |
892 struct fd_list *prev; /* previous element in the list */ | |
893 struct fd_list *head; /* head of the list */ | |
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894 void *o; /* additional pointer, used for any purpose (ex: start of the parent object) */ |
0 | 895 }; |
896 | |
897 /* Initialize a list element */ | |
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898 #define FD_LIST_INITIALIZER( _list_name ) \ |
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899 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = NULL } |
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900 #define FD_LIST_INITIALIZER_O( _list_name, _obj ) \ |
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901 { .next = & _list_name, .prev = & _list_name, .head = & _list_name, .o = _obj } |
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902 void fd_list_init ( struct fd_list * list, void * obj ); |
0 | 903 |
904 /* Return boolean, true if the list is empty */ | |
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905 #define FD_IS_LIST_EMPTY( _list ) ((((struct fd_list *)(_list))->head == (_list)) && (((struct fd_list *)(_list))->next == (_list))) |
0 | 906 |
907 /* Insert an item in a list at known position */ | |
908 void fd_list_insert_after ( struct fd_list * ref, struct fd_list * item ); | |
909 void fd_list_insert_before ( struct fd_list * ref, struct fd_list * item ); | |
910 | |
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911 /* Move all elements from a list at the end of another */ |
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912 void fd_list_move_end(struct fd_list * ref, struct fd_list * senti); |
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913 |
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914 /* 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 | 915 int fd_list_insert_ordered( struct fd_list * head, struct fd_list * item, int (*cmp_fct)(void *, void *), void ** ref_duplicate); |
916 | |
917 /* Unlink an item from a list */ | |
918 void fd_list_unlink ( struct fd_list * item ); | |
919 | |
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920 |
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921 |
0 | 922 |
923 /*============================================================*/ | |
924 /* DICTIONARY */ | |
925 /*============================================================*/ | |
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926 |
0 | 927 /* Structure that contains the complete dictionary definitions */ |
928 struct dictionary; | |
929 | |
930 /* Structure that contains a dictionary object */ | |
931 struct dict_object; | |
932 | |
933 /* Types of object in the dictionary. */ | |
934 enum dict_object_type { | |
935 DICT_VENDOR = 1, /* Vendor */ | |
936 DICT_APPLICATION, /* Diameter Application */ | |
937 DICT_TYPE, /* AVP data type */ | |
938 DICT_ENUMVAL, /* Named constant (value of an enumerated AVP type) */ | |
939 DICT_AVP, /* AVP */ | |
940 DICT_COMMAND, /* Diameter Command */ | |
941 DICT_RULE /* a Rule for AVP in command or grouped AVP */ | |
942 #define DICT_TYPE_MAX DICT_RULE | |
943 }; | |
944 | |
945 /* Initialize a dictionary */ | |
946 int fd_dict_init(struct dictionary ** dict); | |
947 /* Destroy a dictionary */ | |
948 int fd_dict_fini(struct dictionary ** dict); | |
949 | |
950 /* | |
951 * FUNCTION: fd_dict_new | |
952 * | |
953 * PARAMETERS: | |
954 * dict : Pointer to the dictionnary where the object is created | |
955 * type : What kind of object must be created | |
956 * data : pointer to the data for the object. | |
972 | 957 * type parameter is used to determine the type of data (see below for detail). |
0 | 958 * parent : a reference to a parent object, if needed. |
959 * ref : upon successful creation, reference to new object is stored here if !null. | |
960 * | |
961 * DESCRIPTION: | |
962 * Create a new object in the dictionary. | |
963 * See following object sections in this header file for more information on data and parent parameters format. | |
964 * | |
965 * RETURN VALUE: | |
966 * 0 : The object is created in the dictionary. | |
967 * EINVAL : A parameter is invalid. | |
968 * EEXIST : This object is already defined in the dictionary (with conflicting data). | |
969 * If "ref" is not NULL, it points to the existing element on return. | |
970 * (other standard errors may be returned, too, with their standard meaning. Example: | |
971 * ENOMEM : Memory allocation for the new object element failed.) | |
972 */ | |
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973 int fd_dict_new ( struct dictionary * dict, enum dict_object_type type, void * data, struct dict_object * parent, struct dict_object ** ref ); |
0 | 974 |
975 /* | |
976 * FUNCTION: fd_dict_search | |
977 * | |
978 * PARAMETERS: | |
979 * dict : Pointer to the dictionnary where the object is searched | |
980 * type : type of object that is being searched | |
972 | 981 * criteria : how the object must be searched. See object-related sections below for more information. |
0 | 982 * what : depending on criteria, the data that must be searched. |
983 * result : On successful return, pointer to the object is stored here. | |
984 * retval : this value is returned if the object is not found and result is not NULL. | |
985 * | |
986 * DESCRIPTION: | |
987 * Perform a search in the dictionary. | |
972 | 988 * See the object-specific sections below to find how to look for each objects. |
0 | 989 * If the "result" parameter is NULL, the function is used to check if an object is in the dictionary. |
990 * Otherwise, a reference to the object is stored in result if found. | |
991 * If result is not NULL and the object is not found, retval is returned (should be 0 or ENOENT usually) | |
992 * | |
993 * RETURN VALUE: | |
994 * 0 : The object has been found in the dictionary, or *result is NULL. | |
995 * EINVAL : A parameter is invalid. | |
996 * ENOENT : No matching object has been found, and result was NULL. | |
997 */ | |
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998 int fd_dict_search ( struct dictionary * dict, enum dict_object_type type, int criteria, const void * what, struct dict_object ** result, int retval ); |
0 | 999 |
1000 /* Special case: get the generic error command object */ | |
620
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1001 int fd_dict_get_error_cmd(struct dictionary * dict, struct dict_object ** obj); |
0 | 1002 |
1003 /* | |
1004 * FUNCTION: fd_dict_getval | |
1005 * | |
1006 * PARAMETERS: | |
1007 * object : Pointer to a dictionary object. | |
1008 * data : pointer to a structure to hold the data for the object. | |
1009 * The type is the same as "data" parameter in fd_dict_new function. | |
1010 * | |
1011 * DESCRIPTION: | |
1012 * Retrieve content of a dictionary object. | |
1013 * See following object sections in this header file for more information on data and parent parameters format. | |
1014 * | |
1015 * RETURN VALUE: | |
1016 * 0 : The content of the object has been retrieved. | |
1017 * EINVAL : A parameter is invalid. | |
1018 */ | |
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1019 int fd_dict_getval ( struct dict_object * object, void * val); |
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1020 int fd_dict_gettype ( struct dict_object * object, enum dict_object_type * type); |
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1021 int fd_dict_getdict ( struct dict_object * object, struct dictionary ** dict); |
0 | 1022 |
1023 /* Debug functions */ | |
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1024 DECLARE_FD_DUMP_PROTOTYPE(fd_dict_dump_object, struct dict_object * obj); |
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1025 DECLARE_FD_DUMP_PROTOTYPE(fd_dict_dump, struct dictionary * dict); |
0 | 1026 |
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1027 /* Function to access full contents of the dictionary, see doc in dictionary.c */ |
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1028 int fd_dict_getlistof(int criteria, void * parent, struct fd_list ** sentinel); |
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1029 |
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1030 /* Function to remove an entry from the dictionary. |
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1031 This cannot be used if the object has children (for example a vendor with vendor-specific AVPs). |
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1032 In such case, the children must be removed first. */ |
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1033 int fd_dict_delete(struct dict_object * obj); |
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1034 |
0 | 1035 /* |
1036 *************************************************************************** | |
1037 * | |
1038 * Vendor object | |
1039 * | |
1040 * These types are used to manage vendors in the dictionary | |
1041 * | |
1042 *************************************************************************** | |
1043 */ | |
1044 | |
1045 /* Type to hold a Vendor ID: "SMI Network Management Private Enterprise Codes" (RFC3232) */ | |
1046 typedef uint32_t vendor_id_t; | |
1047 | |
1048 /* Type to hold data associated to a vendor */ | |
1049 struct dict_vendor_data { | |
1050 vendor_id_t vendor_id; /* ID of a vendor */ | |
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1051 char * vendor_name; /* The name of this vendor */ |
0 | 1052 }; |
1053 | |
1054 /* The criteria for searching a vendor object in the dictionary */ | |
1055 enum { | |
1056 VENDOR_BY_ID = 10, /* "what" points to a vendor_id_t */ | |
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1057 VENDOR_BY_NAME, /* "what" points to a char * */ |
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1058 VENDOR_OF_APPLICATION, /* "what" points to a struct dict_object containing an application (see below) */ |
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1059 VENDOR_OF_AVP, /* "what" points to a struct dict_object containing an avp (see below) */ |
0 | 1060 }; |
1061 | |
1062 /*** | |
1063 * API usage : | |
1064 | |
1065 Note: the value of "vendor_name" is copied when the object is created, and the string may be disposed afterwards. | |
1066 On the other side, when value is retrieved with dict_getval, the string is not copied and MUST NOT be freed. It will | |
1067 be freed automatically along with the object itself with call to dict_fini later. | |
1068 | |
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1069 - fd_dict_new: |
0 | 1070 The "parent" parameter is not used for vendors. |
1071 Sample code to create a vendor: | |
1072 { | |
1073 int ret; | |
1074 struct dict_object * myvendor; | |
1075 struct dict_vendor_data myvendordata = { 23455, "my vendor name" }; -- just an example... | |
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1076 ret = fd_dict_new ( dict, DICT_VENDOR, &myvendordata, NULL, &myvendor ); |
0 | 1077 } |
1078 | |
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1079 - fd_dict_search: |
0 | 1080 Sample codes to look for a vendor object, by its id or name: |
1081 { | |
1082 int ret; | |
1083 struct dict_object * vendor_found; | |
1084 vendor_id_t vendorid = 23455; | |
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1085 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_ID, &vendorid, &vendor_found, ENOENT); |
0 | 1086 - or - |
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1087 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &vendor_found, ENOENT); |
0 | 1088 } |
1089 | |
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1090 - fd_dict_getval: |
0 | 1091 Sample code to retrieve the data from a vendor object: |
1092 { | |
1093 int ret; | |
1094 struct dict_object * myvendor; | |
1095 struct dict_vendor_data myvendordata; | |
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1096 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_BY_NAME, "my vendor name", &myvendor, ENOENT); |
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1097 ret = fd_dict_getval ( myvendor, &myvendordata ); |
0 | 1098 printf("my vendor id: %d\n", myvendordata.vendor_id ); |
1099 } | |
1100 | |
1101 */ | |
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1102 |
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1103 /* Special function: */ |
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1104 uint32_t * fd_dict_get_vendorid_list(struct dictionary * dict); |
0 | 1105 |
1106 /* | |
1107 *************************************************************************** | |
1108 * | |
1109 * Application object | |
1110 * | |
1111 * These types are used to manage Diameter applications in the dictionary | |
1112 * | |
1113 *************************************************************************** | |
1114 */ | |
1115 | |
1116 /* Type to hold a Diameter application ID: IANA assigned value for this application. */ | |
1117 typedef uint32_t application_id_t; | |
1118 | |
1119 /* Type to hold data associated to an application */ | |
1120 struct dict_application_data { | |
1121 application_id_t application_id; /* ID of the application */ | |
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1122 char * application_name; /* The name of this application */ |
0 | 1123 }; |
1124 | |
1125 /* The criteria for searching an application object in the dictionary */ | |
1126 enum { | |
1127 APPLICATION_BY_ID = 20, /* "what" points to a application_id_t */ | |
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1128 APPLICATION_BY_NAME, /* "what" points to a char * */ |
972 | 1129 APPLICATION_OF_TYPE, /* "what" points to a struct dict_object containing a type object (see below) */ |
1130 APPLICATION_OF_COMMAND /* "what" points to a struct dict_object containing a command (see below) */ | |
0 | 1131 }; |
1132 | |
1133 /*** | |
1134 * API usage : | |
1135 | |
1136 The "parent" parameter of dict_new may point to a vendor object to inform of what vendor defines the application. | |
1137 for standard-track applications, the "parent" parameter should be NULL. | |
1138 The vendor associated to an application is retrieved with VENDOR_OF_APPLICATION search criteria on vendors. | |
1139 | |
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1140 - fd_dict_new: |
0 | 1141 Sample code for application creation: |
1142 { | |
1143 int ret; | |
1144 struct dict_object * vendor; | |
1145 struct dict_object * appl; | |
1146 struct dict_vendor_data vendor_data = { | |
1147 23455, | |
1148 "my vendor name" | |
1149 }; | |
1150 struct dict_application_data app_data = { | |
1151 9789, | |
1152 "my vendor's application" | |
1153 }; | |
1154 | |
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1155 ret = fd_dict_new ( dict, DICT_VENDOR, &vendor_data, NULL, &vendor ); |
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1156 ret = fd_dict_new ( dict, DICT_APPLICATION, &app_data, vendor, &appl ); |
0 | 1157 } |
1158 | |
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1159 - fd_dict_search: |
0 | 1160 Sample code to retrieve the vendor of an application |
1161 { | |
1162 int ret; | |
1163 struct dict_object * vendor, * appli; | |
1164 | |
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1165 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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1166 ret = fd_dict_search ( dict, DICT_VENDOR, VENDOR_OF_APPLICATION, appli, &vendor, ENOENT); |
0 | 1167 } |
1168 | |
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1169 - fd_dict_getval: |
0 | 1170 Sample code to retrieve the data from an application object: |
1171 { | |
1172 int ret; | |
1173 struct dict_object * appli; | |
1174 struct dict_application_data appl_data; | |
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1175 ret = fd_dict_search ( dict, DICT_APPLICATION, APPLICATION_BY_NAME, "my vendor's application", &appli, ENOENT); |
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1176 ret = fd_dict_getval ( appli, &appl_data ); |
0 | 1177 printf("my application id: %s\n", appl_data.application_id ); |
1178 } | |
1179 | |
1180 */ | |
1181 | |
1182 /* | |
1183 *************************************************************************** | |
1184 * | |
1185 * Type object | |
1186 * | |
1187 * These types are used to manage AVP data types in the dictionary | |
1188 * | |
1189 *************************************************************************** | |
1190 */ | |
1191 | |
1192 /* Type to store any AVP value */ | |
1193 union avp_value { | |
1194 struct { | |
1195 uint8_t *data; /* bytes buffer */ | |
1196 size_t len; /* length of the data buffer */ | |
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1197 } os; /* Storage for an octet string */ |
0 | 1198 int32_t i32; /* integer 32 */ |
1199 int64_t i64; /* integer 64 */ | |
1200 uint32_t u32; /* unsigned 32 */ | |
1201 uint64_t u64; /* unsigned 64 */ | |
1202 float f32; /* float 32 */ | |
1203 double f64; /* float 64 */ | |
1204 }; | |
1205 | |
1206 /* These are the basic AVP types defined in RFC3588bis */ | |
1207 enum dict_avp_basetype { | |
1208 AVP_TYPE_GROUPED, | |
1209 AVP_TYPE_OCTETSTRING, | |
1210 AVP_TYPE_INTEGER32, | |
1211 AVP_TYPE_INTEGER64, | |
1212 AVP_TYPE_UNSIGNED32, | |
1213 AVP_TYPE_UNSIGNED64, | |
1214 AVP_TYPE_FLOAT32, | |
1215 AVP_TYPE_FLOAT64 | |
1216 #define AVP_TYPE_MAX AVP_TYPE_FLOAT64 | |
1217 }; | |
1218 | |
1219 /* Callbacks that can be associated with a derived type to easily interpret the AVP value. */ | |
1220 /* | |
1221 * CALLBACK: dict_avpdata_interpret | |
1222 * | |
1223 * PARAMETERS: | |
1224 * val : Pointer to the AVP value that must be interpreted. | |
1225 * interpreted : The result of interpretation is stored here. The format and meaning depends on each type. | |
1226 * | |
1227 * DESCRIPTION: | |
1228 * This callback can be provided with a derived type in order to facilitate the interpretation of formated data. | |
1229 * For example, when an AVP of type "Address" is received, it can be used to convert the octetstring into a struct sockaddr. | |
1230 * This callback is not called directly, but through the message's API msg_avp_value_interpret function. | |
1231 * | |
1232 * RETURN VALUE: | |
1233 * 0 : Operation complete. | |
1234 * !0 : An error occurred, the error code is returned. | |
1235 */ | |
1236 typedef int (*dict_avpdata_interpret) (union avp_value * value, void * interpreted); | |
1237 /* | |
1238 * CALLBACK: dict_avpdata_encode | |
1239 * | |
1240 * PARAMETERS: | |
1241 * data : The formated data that must be stored in the AVP value. | |
1242 * val : Pointer to the AVP value storage area where the data must be stored. | |
1243 * | |
1244 * DESCRIPTION: | |
1245 * This callback can be provided with a derived type in order to facilitate the encoding of formated data. | |
1246 * For example, it can be used to convert a struct sockaddr in an AVP value of type Address. | |
1247 * This callback is not called directly, but through the message's API msg_avp_value_encode function. | |
1248 * If the callback is defined for an OctetString based type, the created string must be malloc'd. free will be called | |
1249 * automatically later. | |
1250 * | |
1251 * RETURN VALUE: | |
1252 * 0 : Operation complete. | |
1253 * !0 : An error occurred, the error code is returned. | |
1254 */ | |
1255 typedef int (*dict_avpdata_encode) (void * data, union avp_value * val); | |
1256 | |
1257 | |
1258 /* Type to hold data associated to a derived AVP data type */ | |
1259 struct dict_type_data { | |
1260 enum dict_avp_basetype type_base; /* How the data of such AVP must be interpreted */ | |
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1261 char * type_name; /* The name of this type */ |
0 | 1262 dict_avpdata_interpret type_interpret;/* cb to convert the AVP value in more comprehensive format (or NULL) */ |
1263 dict_avpdata_encode type_encode; /* cb to convert formatted data into an AVP value (or NULL) */ | |
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1264 DECLARE_FD_DUMP_PROTOTYPE((*type_dump), union avp_value * val); /* cb called by fd_msg_dump_* for this type of data (if != NULL). Returned string must be freed. */ |
0 | 1265 }; |
1266 | |
1267 /* The criteria for searching a type object in the dictionary */ | |
1268 enum { | |
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1269 TYPE_BY_NAME = 30, /* "what" points to a char * */ |
972 | 1270 TYPE_OF_ENUMVAL, /* "what" points to a struct dict_object containing an enumerated constant (DICT_ENUMVAL, see below). */ |
0 | 1271 TYPE_OF_AVP /* "what" points to a struct dict_object containing an AVP object. */ |
1272 }; | |
1273 | |
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1274 /**** |
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1275 Callbacks defined in libfdproto/dictionary_functions.c file -- see that file for usage. |
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1276 */ |
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1277 |
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1278 /* Convert an Address type AVP into a struct sockaddr_storage */ |
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1279 int fd_dictfct_Address_encode(void * data, union avp_value * avp_value); |
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1280 int fd_dictfct_Address_interpret(union avp_value * avp_value, void * interpreted); |
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1281 DECLARE_FD_DUMP_PROTOTYPE(fd_dictfct_Address_dump, union avp_value * avp_value); |
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1282 |
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1283 /* Display the content of an AVP of type UTF8String in the log file */ |
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1284 DECLARE_FD_DUMP_PROTOTYPE(fd_dictfct_UTF8String_dump, union avp_value * avp_value); |
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1285 |
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1286 /* For Time AVPs, map with time_t value directly */ |
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1287 int fd_dictfct_Time_encode(void * data, union avp_value * avp_value); |
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1288 int fd_dictfct_Time_interpret(union avp_value * avp_value, void * interpreted); |
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1289 DECLARE_FD_DUMP_PROTOTYPE(fd_dictfct_Time_dump, union avp_value * avp_value); |
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1290 |
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1291 |
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1292 |
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1293 /****/ |
0 | 1294 |
1295 /*** | |
1296 * API usage : | |
1297 | |
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1298 - fd_dict_new: |
0 | 1299 The "parent" parameter may point to an application object, when a type is defined by a Diameter application. |
1300 | |
1301 Sample code: | |
1302 { | |
1303 int ret; | |
1304 struct dict_object * mytype; | |
1305 struct dict_type_data mytypedata = | |
1306 { | |
1307 AVP_TYPE_OCTETSTRING, | |
1308 "Address", | |
1309 NULL, | |
1310 NULL | |
1311 }; | |
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1312 ret = fd_dict_new ( dict, DICT_TYPE, &mytypedata, NULL, &mytype ); |
0 | 1313 } |
1314 | |
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1315 - fd_dict_search: |
0 | 1316 Sample code: |
1317 { | |
1318 int ret; | |
1319 struct dict_object * address_type; | |
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1320 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Address", &address_type, ENOENT); |
0 | 1321 } |
1322 | |
1323 */ | |
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1324 |
0 | 1325 /* |
1326 *************************************************************************** | |
1327 * | |
1328 * Enumerated values object | |
1329 * | |
1330 * These types are used to manage named constants of some AVP, | |
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1331 * for enumerated types. freeDiameter allows constants for types others than Unsigned32 |
0 | 1332 * |
1333 *************************************************************************** | |
1334 */ | |
1335 | |
1336 /* Type to hold data of named constants for AVP */ | |
1337 struct dict_enumval_data { | |
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1338 char * enum_name; /* The name of this constant */ |
0 | 1339 union avp_value enum_value; /* Value of the constant. Union term depends on parent type's base type. */ |
1340 }; | |
1341 | |
1342 /* The criteria for searching a constant in the dictionary */ | |
1343 enum { | |
972 | 1344 ENUMVAL_BY_STRUCT = 40, /* "what" points to a struct dict_enumval_request as defined below */ |
764
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1345 ENUMVAL_BY_NAME, /* This cannot be used for researches */ |
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1346 ENUMVAL_BY_VALUE /* This cannot be used for researches */ |
0 | 1347 }; |
1348 | |
1349 struct dict_enumval_request { | |
1350 /* Identifier of the parent type, one of the following must not be NULL */ | |
1351 struct dict_object *type_obj; | |
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1352 char * type_name; |
0 | 1353 |
1354 /* Search criteria for the constant */ | |
1355 struct dict_enumval_data search; /* search.enum_value is used only if search.enum_name == NULL */ | |
1356 }; | |
1357 | |
1358 /*** | |
1359 * API usage : | |
1360 | |
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1361 - fd_dict_new: |
0 | 1362 The "parent" parameter must point to a derived type object. |
1363 Sample code to create a type "Boolean" with two constants "True" and "False": | |
1364 { | |
1365 int ret; | |
1366 struct dict_object * type_boolean; | |
1367 struct dict_type_data type_boolean_data = | |
1368 { | |
1369 AVP_TYPE_INTEGER32, | |
1370 "Boolean", | |
1371 NULL, | |
1372 NULL | |
1373 }; | |
1374 struct dict_enumval_data boolean_false = | |
1375 { | |
1376 .enum_name="False", | |
1377 .enum_value.i32 = 0 | |
1378 }; | |
1379 struct dict_enumval_data boolean_true = | |
1380 { | |
1381 .enum_name="True", | |
1382 .enum_value.i32 = -1 | |
1383 }; | |
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1384 ret = fd_dict_new ( dict, DICT_TYPE, &type_boolean_data, NULL, &type_boolean ); |
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1385 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_false, type_boolean, NULL ); |
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1386 ret = fd_dict_new ( dict, DICT_ENUMVAL, &boolean_true , type_boolean, NULL ); |
0 | 1387 |
1388 } | |
1389 | |
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1390 - fd_dict_search: |
0 | 1391 Sample code to look for a constant name, by its value: |
1392 { | |
1393 int ret; | |
1394 struct dict_object * value_found; | |
1395 struct dict_enumval_request boolean_by_value = | |
1396 { | |
1397 .type_name = "Boolean", | |
1398 .search.enum_name=NULL, | |
1399 .search.enum_value.i32 = -1 | |
1400 }; | |
1401 | |
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1402 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
0 | 1403 } |
1404 | |
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1405 - fd_dict_getval: |
0 | 1406 Sample code to retrieve the data from a constant object: |
1407 { | |
1408 int ret; | |
1409 struct dict_object * value_found; | |
1410 struct dict_enumval_data boolean_data = NULL; | |
1411 struct dict_enumval_request boolean_by_value = | |
1412 { | |
1413 .type_name = "Boolean", | |
1414 .search.enum_name=NULL, | |
1415 .search.enum_value.i32 = 0 | |
1416 }; | |
1417 | |
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1418 ret = fd_dict_search ( dict, DICT_ENUMVAL, ENUMVAL_BY_STRUCT, &boolean_by_value, &value_found, ENOENT); |
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1419 ret = fd_dict_getval ( value_found, &boolean_data ); |
0 | 1420 printf(" Boolean with value 0: %s", boolean_data.enum_name ); |
1421 } | |
1422 */ | |
1423 | |
1424 /* | |
1425 *************************************************************************** | |
1426 * | |
1427 * AVP object | |
1428 * | |
1429 * These objects are used to manage AVP definitions in the dictionary | |
1430 * | |
1431 *************************************************************************** | |
1432 */ | |
1433 | |
1434 /* Type to hold an AVP code. For vendor 0, these codes are assigned by IANA. Otherwise, it is managed by the vendor */ | |
1435 typedef uint32_t avp_code_t; | |
1436 | |
1437 /* Values of AVP flags */ | |
1438 #define AVP_FLAG_VENDOR 0x80 | |
1439 #define AVP_FLAG_MANDATORY 0x40 | |
1440 #define AVP_FLAG_RESERVED3 0x20 | |
1441 #define AVP_FLAG_RESERVED4 0x10 | |
1442 #define AVP_FLAG_RESERVED5 0x08 | |
1443 #define AVP_FLAG_RESERVED6 0x04 | |
1444 #define AVP_FLAG_RESERVED7 0x02 | |
1445 #define AVP_FLAG_RESERVED8 0x01 | |
1446 | |
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1447 /* For dumping flags and values */ |
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1448 #define DUMP_AVPFL_str "%c%c%s%s%s%s%s%s" |
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1449 #define DUMP_AVPFL_val(_val) (_val & AVP_FLAG_VENDOR)?'V':'-' , (_val & AVP_FLAG_MANDATORY)?'M':'-', \ |
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1450 (_val & AVP_FLAG_RESERVED3)?"3":"", (_val & AVP_FLAG_RESERVED4)?"4":"", \ |
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1451 (_val & AVP_FLAG_RESERVED5)?"5":"", (_val & AVP_FLAG_RESERVED6)?"6":"", (_val & AVP_FLAG_RESERVED7)?"7":"", (_val & AVP_FLAG_RESERVED8)?"8":"" |
0 | 1452 |
1453 /* Type to hold data associated to an avp */ | |
1454 struct dict_avp_data { | |
1455 avp_code_t avp_code; /* Code of the avp */ | |
1456 vendor_id_t avp_vendor; /* Vendor of the AVP, or 0 */ | |
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1457 char * avp_name; /* Name of this AVP */ |
0 | 1458 uint8_t avp_flag_mask; /* Mask of fixed AVP flags */ |
1459 uint8_t avp_flag_val; /* Values of the fixed flags */ | |
1460 enum dict_avp_basetype avp_basetype; /* Basic type of data found in the AVP */ | |
1461 }; | |
1462 | |
1463 /* The criteria for searching an avp object in the dictionary */ | |
1464 enum { | |
1465 AVP_BY_CODE = 50, /* "what" points to an avp_code_t, vendor is always 0 */ | |
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1466 AVP_BY_NAME, /* "what" points to a char *, vendor is always 0 */ |
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1467 AVP_BY_NAME_ALL_VENDORS,/* "what" points to a string. Might be quite slow... */ |
972 | 1468 AVP_BY_STRUCT, /* "what" points to a struct dict_avp_request_ex (see below) */ |
903
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1469 |
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1470 /* kept for backward compatibility, better use AVP_BY_STRUCT above instead */ |
972 | 1471 AVP_BY_CODE_AND_VENDOR, /* "what" points to a struct dict_avp_request (see below), where avp_vendor and avp_code are set */ |
1472 AVP_BY_NAME_AND_VENDOR /* "what" points to a struct dict_avp_request (see below), where avp_vendor and avp_name are set */ | |
0 | 1473 }; |
1474 | |
1475 /* Struct used for some researchs */ | |
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1476 struct dict_avp_request_ex { |
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1477 struct { |
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1478 /* Only one of the following fields must be set. */ |
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1479 struct dict_object * vendor; /* most efficient if already known, set to NULL to ignore */ |
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1480 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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1481 const char * vendor_name; /* set to NULL to ignore */ |
903
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1482 } avp_vendor; |
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1483 |
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1484 struct { |
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1485 /* Only one of the following fields must be set */ |
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1486 avp_code_t avp_code; /* set to 0 to ignore */ |
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1487 const char * avp_name; /* set to NULL to ignore */ |
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1488 } avp_data; |
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1489 }; |
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1490 |
0 | 1491 struct dict_avp_request { |
1492 vendor_id_t avp_vendor; | |
1493 avp_code_t avp_code; | |
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1494 char * avp_name; |
0 | 1495 }; |
1496 | |
1497 | |
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1498 |
0 | 1499 /*** |
1500 * API usage : | |
1501 | |
1502 If "parent" parameter is not NULL during AVP creation, it must point to a DICT_TYPE object. | |
1503 The extended type is then attached to the AVP. In case where it is an enumerated type, the value of | |
1504 AVP is automatically interpreted in debug messages, and in message checks. | |
1505 The derived type of an AVP can be retrieved with: dict_search ( DICT_TYPE, TYPE_OF_AVP, avp, ... ) | |
1506 | |
1507 To create the rules (ABNF) for children of Grouped AVP, see the DICT_RULE related part. | |
1508 | |
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1509 - fd_dict_new: |
0 | 1510 Sample code for AVP creation: |
1511 { | |
1512 int ret; | |
1513 struct dict_object * user_name_avp; | |
1514 struct dict_object * boolean_type; | |
1515 struct dict_object * sample_boolean_avp; | |
1516 struct dict_avp_data user_name_data = { | |
1517 1, // code | |
1518 0, // vendor | |
1519 "User-Name", // name | |
1520 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 | |
1521 AVP_FLAG_MANDATORY, // the V flag must be cleared, the M flag must be set. | |
1522 AVP_TYPE_OCTETSTRING // User-Name AVP contains OctetString data (further precision such as UTF8String can be given with a parent derived type) | |
1523 }; | |
1524 struct dict_avp_data sample_boolean_data = { | |
1525 31337, | |
1526 23455, | |
1527 "Sample-Boolean", | |
1528 AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, | |
1529 AVP_FLAG_VENDOR, | |
1530 AVP_TYPE_INTEGER32 // This MUST be the same as parent type's | |
1531 }; | |
1532 | |
1533 -- Create an AVP with a base type -- | |
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1534 ret = fd_dict_new ( dict, DICT_AVP, &user_name_data, NULL, &user_name_avp ); |
0 | 1535 |
1536 -- Create an AVP with a derived type -- | |
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1537 ret = fd_dict_search ( dict, DICT_TYPE, TYPE_BY_NAME, "Boolean", &boolean_type, ENOENT); |
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1538 ret = fd_dict_new ( dict, DICT_AVP, &sample_boolean_data , boolean_type, &sample_boolean_avp ); |
0 | 1539 |
1540 } | |
1541 | |
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1542 - fd_dict_search: |
0 | 1543 Sample code to look for an AVP |
1544 { | |
1545 int ret; | |
1546 struct dict_object * avp_username; | |
1547 struct dict_object * avp_sampleboolean; | |
1548 struct dict_avp_request avpvendorboolean = | |
1549 { | |
1550 .avp_vendor = 23455, | |
1551 .avp_name = "Sample-Boolean" | |
1552 }; | |
1553 | |
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1554 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
0 | 1555 |
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1556 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME_AND_VENDOR, &avpvendorboolean, &avp_sampleboolean, ENOENT); |
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1558 -- this would also work, but be slower, because it has to search all vendor dictionaries -- |
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1559 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME_ALL_VENDORS, "Sample-Boolean", &avp_sampleboolean, ENOENT); |
0 | 1560 |
1561 } | |
1562 | |
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1563 - fd_dict_getval: |
0 | 1564 Sample code to retrieve the data from an AVP object: |
1565 { | |
1566 int ret; | |
1567 struct dict_object * avp_username; | |
1568 struct dict_avp_data user_name_data; | |
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1569 ret = fd_dict_search ( dict, DICT_AVP, AVP_BY_NAME, "User-Name", &avp_username, ENOENT); |
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1570 ret = fd_dict_getval ( avp_username, &user_name_data ); |
0 | 1571 printf("User-Name code: %d\n", user_name_data.avp_code ); |
1572 } | |
1573 | |
1574 */ | |
1575 | |
1576 /* | |
1577 *************************************************************************** | |
1578 * | |
1579 * Command object | |
1580 * | |
1581 * These types are used to manage commands objects in the dictionary | |
1582 * | |
1583 *************************************************************************** | |
1584 */ | |
1585 | |
1586 /* Type to hold a Diameter command code: IANA assigned values. 0x0-0x7fffff=standard, 0x800000-0xfffffd=vendors, 0xfffffe-0xffffff=experimental */ | |
1587 typedef uint32_t command_code_t; | |
1588 | |
1589 /* Values of command flags */ | |
1590 #define CMD_FLAG_REQUEST 0x80 | |
1591 #define CMD_FLAG_PROXIABLE 0x40 | |
1592 #define CMD_FLAG_ERROR 0x20 | |
1593 #define CMD_FLAG_RETRANSMIT 0x10 | |
1594 #define CMD_FLAG_RESERVED5 0x08 | |
1595 #define CMD_FLAG_RESERVED6 0x04 | |
1596 #define CMD_FLAG_RESERVED7 0x02 | |
1597 #define CMD_FLAG_RESERVED8 0x01 | |
1598 | |
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1599 /* For dumping flags and values */ |
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1600 #define DUMP_CMDFL_str "%c%c%c%c%s%s%s%s" |
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1601 #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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1602 (_val & CMD_FLAG_RESERVED5)?"5":"", (_val & CMD_FLAG_RESERVED6)?"6":"", (_val & CMD_FLAG_RESERVED7)?"7":"", (_val & CMD_FLAG_RESERVED8)?"8":"" |
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1603 |
0 | 1604 /* Type to hold data associated to a command */ |
1605 struct dict_cmd_data { | |
1606 command_code_t cmd_code; /* code of the command */ | |
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1607 char * cmd_name; /* Name of the command */ |
0 | 1608 uint8_t cmd_flag_mask; /* Mask of fixed-value flags */ |
1609 uint8_t cmd_flag_val; /* values of the fixed flags */ | |
1610 }; | |
1611 | |
1612 /* The criteria for searching an avp object in the dictionary */ | |
1613 enum { | |
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1614 CMD_BY_NAME = 60, /* "what" points to a char * */ |
0 | 1615 CMD_BY_CODE_R, /* "what" points to a command_code_t. The "Request" command is returned. */ |
1616 CMD_BY_CODE_A, /* "what" points to a command_code_t. The "Answer" command is returned. */ | |
1617 CMD_ANSWER /* "what" points to a struct dict_object of a request command. The corresponding "Answer" command is returned. */ | |
1618 }; | |
1619 | |
1620 | |
1621 /*** | |
1622 * API usage : | |
1623 | |
1624 The "parent" parameter of dict_new may point to an application object to inform of what application defines the command. | |
1625 The application associated to a command is retrieved with APPLICATION_OF_COMMAND search criteria on applications. | |
1626 | |
1627 To create the rules for children of commands, see the DICT_RULE related part. | |
1628 | |
1629 Note that the "Request" and "Answer" commands are two independant objects. This allows to have different rules for each. | |
1630 | |
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1631 - fd_dict_new: |
0 | 1632 Sample code for command creation: |
1633 { | |
1634 int ret; | |
1635 struct dict_object * cer; | |
1636 struct dict_object * cea; | |
1637 struct dict_cmd_data ce_data = { | |
1638 257, // code | |
1639 "Capabilities-Exchange-Request", // name | |
1640 CMD_FLAG_REQUEST, // mask | |
1641 CMD_FLAG_REQUEST // value. Only the "R" flag is constrained here, set. | |
1642 }; | |
1643 | |
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1644 ret = fd_dict_new (dict, DICT_COMMAND, &ce_data, NULL, &cer ); |
0 | 1645 |
1646 ce_data.cmd_name = "Capabilities-Exchange-Answer"; | |
1647 ce_data.cmd_flag_val = 0; // Same constraint on "R" flag, but this time it must be cleared. | |
1648 | |
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1649 ret = fd_dict_new ( dict, DICT_COMMAND, &ce_data, NULL, &cea ); |
0 | 1650 } |
1651 | |
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1652 - fd_dict_search: |
0 | 1653 Sample code to look for a command |
1654 { | |
1655 int ret; | |
1656 struct dict_object * cer, * cea; | |
1657 command_code_t code = 257; | |
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1658 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1659 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_CODE_R, &code, &cer, ENOENT); |
0 | 1660 } |
1661 | |
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1662 - fd_dict_getval: |
0 | 1663 Sample code to retrieve the data from a command object: |
1664 { | |
1665 int ret; | |
1666 struct dict_object * cer; | |
1667 struct dict_object * cea; | |
1668 struct dict_cmd_data cea_data; | |
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1669 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_BY_NAME, "Capabilities-Exchange-Request", &cer, ENOENT); |
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1670 ret = fd_dict_search ( dict, DICT_COMMAND, CMD_ANSWER, cer, &cea, ENOENT); |
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1671 ret = fd_dict_getval ( cea, &cea_data ); |
0 | 1672 printf("Answer to CER: %s\n", cea_data.cmd_name ); |
1673 } | |
1674 | |
1675 */ | |
1676 | |
1677 /* | |
1678 *************************************************************************** | |
1679 * | |
1680 * Rule object | |
1681 * | |
1682 * These objects are used to manage rules in the dictionary (ABNF implementation) | |
1683 * This is used for checking messages validity (more powerful than a DTD) | |
1684 * | |
1685 *************************************************************************** | |
1686 */ | |
1687 | |
1688 /* This defines the kind of rule that is defined */ | |
1689 enum rule_position { | |
1690 RULE_FIXED_HEAD = 1, /* The AVP must be at the head of the group. The rule_order field is used to specify the position. */ | |
1691 RULE_REQUIRED, /* The AVP must be present in the parent, but its position is not defined. */ | |
1692 RULE_OPTIONAL, /* The AVP may be present in the message. Used to specify a max number of occurences for example */ | |
1693 RULE_FIXED_TAIL /* The AVP must be at the end of the group. The rule_order field is used to specify the position. */ | |
1694 }; | |
1695 | |
1696 /* Content of a RULE object data */ | |
1697 struct dict_rule_data { | |
1698 struct dict_object *rule_avp; /* Pointer to the AVP object that is concerned by this rule */ | |
1699 enum rule_position rule_position; /* The position in which the rule_avp must appear in the parent */ | |
1700 unsigned rule_order; /* for RULE_FIXED_* rules, the place. 1,2,3.. for HEAD rules; ...,3,2,1 for TAIL rules. */ | |
1701 int rule_min; /* Minimum number of occurences. -1 means "default": 0 for optional rules, 1 for other rules */ | |
1702 int rule_max; /* Maximum number of occurences. -1 means no maximum. 0 means the AVP is forbidden. */ | |
1703 }; | |
1704 | |
1705 /* The criteria for searching a rule in the dictionary */ | |
1706 enum { | |
972 | 1707 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 | 1708 }; |
1709 | |
1710 /* Structure for querying the dictionary about a rule */ | |
1711 struct dict_rule_request { | |
1712 struct dict_object *rule_parent; /* The grouped avp or command to which the rule apply */ | |
1713 struct dict_object *rule_avp; /* The AVP concerned by this rule */ | |
1714 }; | |
1715 | |
1716 | |
1717 /*** | |
1718 * API usage : | |
1719 | |
1720 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). | |
1721 | |
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1722 - fd_dict_new: |
0 | 1723 Sample code for rule creation. Let's create the Proxy-Info grouped AVP for example. |
1724 { | |
1725 int ret; | |
1726 struct dict_object * proxy_info_avp; | |
1727 struct dict_object * proxy_host_avp; | |
1728 struct dict_object * proxy_state_avp; | |
1729 struct dict_object * diameteridentity_type; | |
1730 struct dict_rule_data rule_data; | |
1731 struct dict_type_data di_type_data = { AVP_TYPE_OCTETSTRING, "DiameterIdentity", NULL, NULL }; | |
1732 struct dict_avp_data proxy_info_data = { 284, 0, "Proxy-Info", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_GROUPED }; | |
1733 struct dict_avp_data proxy_host_data = { 280, 0, "Proxy-Host", AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
1734 struct dict_avp_data proxy_state_data = { 33, 0, "Proxy-State",AVP_FLAG_VENDOR | AVP_FLAG_MANDATORY, AVP_FLAG_MANDATORY, AVP_TYPE_OCTETSTRING }; | |
1735 | |
1736 -- Create the parent AVP | |
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1737 ret = fd_dict_new ( dict, DICT_AVP, &proxy_info_data, NULL, &proxy_info_avp ); |
0 | 1738 |
1739 -- Create the first child AVP. | |
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1740 ret = fd_dict_new ( dict, DICT_TYPE, &di_type_data, NULL, &diameteridentity_type ); |
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1741 ret = fd_dict_new ( dict, DICT_AVP, &proxy_host_data, diameteridentity_type, &proxy_host_avp ); |
0 | 1742 |
1743 -- Create the other child AVP | |
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1744 ret = fd_dict_new ( dict, DICT_AVP, &proxy_state_data, NULL, &proxy_state_avp ); |
0 | 1745 |
1746 -- Now we can create the rules. Both children AVP are mandatory. | |
1747 rule_data.rule_position = RULE_REQUIRED; | |
1748 rule_data.rule_min = -1; | |
1749 rule_data.rule_max = -1; | |
1750 | |
1751 rule_data.rule_avp = proxy_host_avp; | |
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1752 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
0 | 1753 |
1754 rule_data.rule_avp = proxy_state_avp; | |
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1755 ret = fd_dict_new ( dict, DICT_RULE, &rule_data, proxy_info_avp, NULL ); |
0 | 1756 } |
1757 | |
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1758 - fd_dict_search and fd_dict_getval are similar to previous examples. |
0 | 1759 |
1760 */ | |
1761 | |
1762 /* Define some hard-coded values */ | |
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1763 /* Application */ |
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1764 #define AI_RELAY 0xffffffff |
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1765 |
0 | 1766 /* Commands Codes */ |
1767 #define CC_CAPABILITIES_EXCHANGE 257 | |
1768 #define CC_RE_AUTH 258 | |
1769 #define CC_ACCOUNTING 271 | |
1770 #define CC_ABORT_SESSION 274 | |
1771 #define CC_SESSION_TERMINATION 275 | |
1772 #define CC_DEVICE_WATCHDOG 280 | |
1773 #define CC_DISCONNECT_PEER 282 | |
1774 | |
1775 /* AVPs (Vendor 0) */ | |
87 | 1776 #define AC_USER_NAME 1 |
0 | 1777 #define AC_PROXY_STATE 33 |
1778 #define AC_HOST_IP_ADDRESS 257 | |
1779 #define AC_AUTH_APPLICATION_ID 258 | |
1780 #define AC_ACCT_APPLICATION_ID 259 | |
1781 #define AC_VENDOR_SPECIFIC_APPLICATION_ID 260 | |
1782 #define AC_REDIRECT_HOST_USAGE 261 | |
1783 #define AC_REDIRECT_MAX_CACHE_TIME 262 | |
1784 #define AC_SESSION_ID 263 | |
1785 #define AC_ORIGIN_HOST 264 | |
1786 #define AC_SUPPORTED_VENDOR_ID 265 | |
1787 #define AC_VENDOR_ID 266 | |
1788 #define AC_FIRMWARE_REVISION 267 | |
1789 #define AC_RESULT_CODE 268 | |
1790 #define AC_PRODUCT_NAME 269 | |
1791 #define AC_DISCONNECT_CAUSE 273 | |
1792 #define ACV_DC_REBOOTING 0 | |
1793 #define ACV_DC_BUSY 1 | |
1794 #define ACV_DC_NOT_FRIEND 2 | |
1795 #define AC_ORIGIN_STATE_ID 278 | |
1796 #define AC_FAILED_AVP 279 | |
1797 #define AC_PROXY_HOST 280 | |
1798 #define AC_ERROR_MESSAGE 281 | |
1799 #define AC_ROUTE_RECORD 282 | |
1800 #define AC_DESTINATION_REALM 283 | |
1801 #define AC_PROXY_INFO 284 | |
1802 #define AC_REDIRECT_HOST 292 | |
1803 #define AC_DESTINATION_HOST 293 | |
1804 #define AC_ERROR_REPORTING_HOST 294 | |
1805 #define AC_ORIGIN_REALM 296 | |
1806 #define AC_INBAND_SECURITY_ID 299 | |
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1807 #define ACV_ISI_NO_INBAND_SECURITY 0 |
2db15632a63d
Added a large part of connection establishment logic, to test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
34
diff
changeset
|
1808 #define ACV_ISI_TLS 1 |
0 | 1809 |
705
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1810 /* Error codes from Base protocol |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1811 (reference: http://www.iana.org/assignments/aaa-parameters/aaa-parameters.xml#aaa-parameters-4) |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1812 Note that currently, rfc3588bis-26 has some different values for some of these |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1813 */ |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1814 #define ER_DIAMETER_MULTI_ROUND_AUTH 1001 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1815 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1816 #define ER_DIAMETER_SUCCESS 2001 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1817 #define ER_DIAMETER_LIMITED_SUCCESS 2002 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1818 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1819 #define ER_DIAMETER_COMMAND_UNSUPPORTED 3001 /* 5019 ? */ |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1820 #define ER_DIAMETER_UNABLE_TO_DELIVER 3002 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1821 #define ER_DIAMETER_REALM_NOT_SERVED 3003 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1822 #define ER_DIAMETER_TOO_BUSY 3004 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1823 #define ER_DIAMETER_LOOP_DETECTED 3005 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1824 #define ER_DIAMETER_REDIRECT_INDICATION 3006 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1825 #define ER_DIAMETER_APPLICATION_UNSUPPORTED 3007 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1826 #define ER_DIAMETER_INVALID_HDR_BITS 3008 /* 5020 ? */ |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1827 #define ER_DIAMETER_INVALID_AVP_BITS 3009 /* 5021 ? */ |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1828 #define ER_DIAMETER_UNKNOWN_PEER 3010 /* 5018 ? */ |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1829 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1830 #define ER_DIAMETER_AUTHENTICATION_REJECTED 4001 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1831 #define ER_DIAMETER_OUT_OF_SPACE 4002 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1832 #define ER_ELECTION_LOST 4003 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1833 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1834 #define ER_DIAMETER_AVP_UNSUPPORTED 5001 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1835 #define ER_DIAMETER_UNKNOWN_SESSION_ID 5002 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1836 #define ER_DIAMETER_AUTHORIZATION_REJECTED 5003 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1837 #define ER_DIAMETER_INVALID_AVP_VALUE 5004 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1838 #define ER_DIAMETER_MISSING_AVP 5005 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1839 #define ER_DIAMETER_RESOURCES_EXCEEDED 5006 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1840 #define ER_DIAMETER_CONTRADICTING_AVPS 5007 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1841 #define ER_DIAMETER_AVP_NOT_ALLOWED 5008 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1842 #define ER_DIAMETER_AVP_OCCURS_TOO_MANY_TIMES 5009 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1843 #define ER_DIAMETER_NO_COMMON_APPLICATION 5010 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1844 #define ER_DIAMETER_UNSUPPORTED_VERSION 5011 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1845 #define ER_DIAMETER_UNABLE_TO_COMPLY 5012 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1846 #define ER_DIAMETER_INVALID_BIT_IN_HEADER 5013 /* 3011 ? */ |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1847 #define ER_DIAMETER_INVALID_AVP_LENGTH 5014 |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1848 #define ER_DIAMETER_INVALID_MESSAGE_LENGTH 5015 /* 3012 ? */ |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1849 #define ER_DIAMETER_INVALID_AVP_BIT_COMBO 5016 /* deprecated? */ |
f0cb8f465763
Added standard Result-Code values in header.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
689
diff
changeset
|
1850 #define ER_DIAMETER_NO_COMMON_SECURITY 5017 |
0 | 1851 |
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1852 |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1853 /*============================================================*/ |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1854 /* SESSIONS */ |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1855 /*============================================================*/ |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1856 |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1857 /* Modules that want to associate a state with a Session-Id must first register a handler of this type */ |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1858 struct session_handler; |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1859 |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1860 /* This opaque structure represents a session associated with a Session-Id */ |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1861 struct session; |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1862 |
226
406f74f0789b
Few cosmetics changes
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
216
diff
changeset
|
1863 /* The state information that a module associate with a session -- each module defines its own data format */ |
1088
1d1a20a0779d
Second part of changeset 1083, now the code compiles again. Still missing some functions implementation, though
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1087
diff
changeset
|
1864 struct sess_state; /* declare this in your own extension */ |
1d1a20a0779d
Second part of changeset 1083, now the code compiles again. Still missing some functions implementation, though
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1087
diff
changeset
|
1865 |
1d1a20a0779d
Second part of changeset 1083, now the code compiles again. Still missing some functions implementation, though
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1087
diff
changeset
|
1866 typedef DECLARE_FD_DUMP_PROTOTYPE((*session_state_dump), struct sess_state * st); |
1085
7d7266115a34
Cleaning of the traces in progress
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1082
diff
changeset
|
1867 |
453
9a8b3178a7a7
Postpone the creation of session expiry thread to allow some global variables to be set (debug level, etc)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
340
diff
changeset
|
1868 /* The following function must be called to activate the session expiry mechanism */ |
9a8b3178a7a7
Postpone the creation of session expiry thread to allow some global variables to be set (debug level, etc)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
340
diff
changeset
|
1869 int fd_sess_start(void); |
9a8b3178a7a7
Postpone the creation of session expiry thread to allow some global variables to be set (debug level, etc)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
340
diff
changeset
|
1870 |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1871 /* |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1872 * FUNCTION: fd_sess_handler_create |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1873 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1874 * PARAMETERS: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1875 * handler : location where the new handler must be stored. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1876 * cleanup : a callback function that must be called when the session with associated data is destroyed. |
1085
7d7266115a34
Cleaning of the traces in progress
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1082
diff
changeset
|
1877 * dumper : if not NULL, will be called during fd_sess_dump to display the data associated with a session. 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
|
1878 * opaque : A pointer that is passed to the cleanup callback -- the content is never examined by the framework. |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1879 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1880 * DESCRIPTION: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1881 * Create a new session handler. This is needed by a module to associate a state with a session object. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1882 * The cleanup handler is called when the session timeout expires, or fd_sess_destroy is called. It must free |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1883 * the state associated with the session, and eventually trig other actions (send a STR, ...). |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1884 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1885 * RETURN VALUE: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1886 * 0 : The new handler has been created. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1887 * EINVAL : A parameter is invalid. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1888 * ENOMEM : Not enough memory to complete the operation |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1889 */ |
1088
1d1a20a0779d
Second part of changeset 1083, now the code compiles again. Still missing some functions implementation, though
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1087
diff
changeset
|
1890 int fd_sess_handler_create ( struct session_handler ** handler, void (*cleanup)(struct sess_state * state, os0_t sid, void * opaque), session_state_dump dumper, void * opaque ); |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1891 |
340
81821e9f6988
Fix issue on session cleanup callback parameters -- thanks Souheil for reporting.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
336
diff
changeset
|
1892 |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1893 /* |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1894 * FUNCTION: fd_sess_handler_destroy |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1895 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1896 * PARAMETERS: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1897 * handler : location of an handler created by fd_sess_handler_create. |
639
95a784729cac
Added new opaque pointer to fd_sess_handler_create and fd_disp_register for usability. Bumped API version number.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
638
diff
changeset
|
1898 * opaque : the opaque pointer registered with the callback is restored here (if ! NULL). |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1899 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1900 * DESCRIPTION: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1901 * This destroys a session handler (typically called when an application is shutting down). |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1902 * If sessions states are registered with this handler, the cleanup callback is called on them. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1903 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1904 * RETURN VALUE: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1905 * 0 : The handler was destroyed. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1906 * EINVAL : A parameter is invalid. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1907 * ENOMEM : Not enough memory to complete the operation |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1908 */ |
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
|
1909 int fd_sess_handler_destroy ( struct session_handler ** handler, void **opaque ); |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
1910 |
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1911 |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1912 |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
1913 /* |
3
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1914 * FUNCTION: fd_sess_new |
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1915 * |
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1916 * PARAMETERS: |
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1917 * session : The location where the session object will be created upon success. |
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1918 * diamid : a Diameter Identity, or NULL. |
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1919 * diamidlen : if diamid is \0-terminated, this can be 0. Otherwise, the length of diamid. |
972 | 1920 * opt : Additional string, or NULL. Usage is described below. |
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1921 * optlen : if opt is \0-terminated, this can be 0. Otherwise, the length of opt. |
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1922 * |
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1923 * DESCRIPTION: |
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1924 * Create a new session object. The Session-Id string associated with this session is generated as follow: |
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1925 * If diamId parameter is provided, the string is created according to the RFC: <diamId>;<high32>;<low32>[;opt] where |
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1926 * diamId is a Diameter Identity. |
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1927 * high32 and low32 are the parts of a monotonic 64 bits counter initialized to (time, 0) at startup. |
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1928 * opt is an optional string that can be concatenated to the identifier. |
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1929 * If diamId is NULL, the string is exactly the content of opt. |
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1930 * |
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1931 * RETURN VALUE: |
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1932 * 0 : The session is created, the initial msg refcount is 1. |
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1933 * EINVAL : A parameter is invalid. |
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1934 * EALREADY : A session with the same name already exists (returned in *session), the msg refcount is increased. |
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1935 * ENOMEM : Not enough memory to complete the operation |
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1936 */ |
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1937 int fd_sess_new ( struct session ** session, DiamId_t diamid, size_t diamidlen, uint8_t * opt, size_t optlen ); |
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1938 |
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1939 /* |
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1940 * FUNCTION: fd_sess_fromsid |
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1941 * |
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1942 * PARAMETERS: |
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1943 * sid : pointer to a string containing a Session-Id (should be UTF-8). |
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1944 * len : length of the sid string (which does not need to be '\0'-terminated) |
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1945 * session : On success, pointer to the session object created / retrieved. |
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1946 * isnew : if not NULL, set to 1 on return if the session object has been created, 0 if it was simply retrieved. |
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1947 * |
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1948 * DESCRIPTION: |
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1949 * Retrieve a session object from a Session-Id string. In case no session object was previously existing with this |
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1950 * id, a new object is silently created (equivalent to fd_sess_new with flag SESSION_NEW_FULL). |
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1951 * |
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1952 * RETURN VALUE: |
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1953 * 0 : The session parameter has been updated. |
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1954 * EINVAL : A parameter is invalid. |
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1955 * ENOMEM : Not enough memory to complete the operation |
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1956 */ |
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1957 int fd_sess_fromsid ( uint8_t * sid, size_t len, struct session ** session, int * isnew); |
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1958 |
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1959 /* only use the following in specific situations, e.g. app_radgw extension. They are normally handled by the framework only */ |
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1960 int fd_sess_fromsid_msg ( uint8_t * sid, size_t len, struct session ** session, int * isnew); |
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1961 int fd_sess_ref_msg ( struct session * session ); |
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1962 |
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1963 /* |
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1964 * FUNCTION: fd_sess_getsid |
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1965 * |
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1966 * PARAMETERS: |
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1967 * session : Pointer to a session object. |
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1968 * sid : On success, the location of the sid is stored here. |
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1969 * |
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1970 * DESCRIPTION: |
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1971 * Retrieve the session identifier (Session-Id) corresponding to a session object. |
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1972 * 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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1973 * It may be used for example to set the value of an AVP. |
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1974 * Note that the sid string is not copied, just its reference... do not free it! |
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1975 * |
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1976 * RETURN VALUE: |
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1977 * 0 : The sid & len parameters have been updated. |
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1978 * EINVAL : A parameter is invalid. |
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1979 */ |
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1980 int fd_sess_getsid ( struct session * session, os0_t * sid, size_t * sidlen ); |
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1981 |
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1982 /* |
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1983 * FUNCTION: fd_sess_settimeout |
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1984 * |
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1985 * PARAMETERS: |
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1986 * session : The session for which to set the timeout. |
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1987 * timeout : The date when the session times out. |
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1988 * |
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1989 * DESCRIPTION: |
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1990 * Set the lifetime for a given session object. This function may be |
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1991 * called several times on the same object to update the timeout value. |
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1992 * When the timeout date is reached, the cleanup handler of each |
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1993 * module that registered data with this session is called, then the |
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1994 * session is cleared. |
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1995 * |
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1996 * There is a possible race condition between cleanup of the session |
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1997 * and use of its data; applications should ensure that they are not |
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1998 * using data from a session that is about to expire / expired. |
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1999 * |
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2000 * RETURN VALUE: |
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2001 * 0 : The session timeout has been updated. |
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2002 * EINVAL : A parameter is invalid. |
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2003 */ |
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2004 int fd_sess_settimeout( struct session * session, const struct timespec * timeout ); |
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2005 |
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2006 /* |
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2007 * FUNCTION: fd_sess_destroy |
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2008 * |
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2009 * PARAMETERS: |
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2010 * session : Pointer to a session object. |
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2011 * |
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2012 * DESCRIPTION: |
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2013 * Destroys all associated states of a session, if any. |
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2014 * Equivalent to a session timeout expired, but the effect is immediate. |
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2015 * The session itself is marked as deleted, and will be freed when it is not referenced |
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2016 * by any message anymore. |
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2017 * |
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2018 * RETURN VALUE: |
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2019 * 0 : The session no longer exists. |
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2020 * EINVAL : A parameter is invalid. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2021 */ |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2022 int fd_sess_destroy ( struct session ** session ); |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2023 |
6
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2024 /* |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2025 * FUNCTION: fd_sess_reclaim |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2026 * |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2027 * PARAMETERS: |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2028 * session : Pointer to a session object. |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2029 * |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2030 * DESCRIPTION: |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2031 * Equivalent to fd_sess_destroy, only if no session_state is associated with the session. |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2032 * Otherwise, this function has no effect (except that it sets *session to NULL). |
6
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2033 * |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2034 * RETURN VALUE: |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2035 * 0 : The session was reclaimed. |
6
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2036 * EINVAL : A parameter is invalid. |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2037 */ |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2038 int fd_sess_reclaim ( struct session ** session ); |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2039 |
b0d377c79d80
Progress on dispatch API spec; added fd_sess_reclaim function and test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
5
diff
changeset
|
2040 |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2041 |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2042 |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2043 /* |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2044 * FUNCTION: fd_sess_state_store |
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
2045 * |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2046 * PARAMETERS: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2047 * handler : The handler with which the state is registered. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2048 * session : The session object with which the state is registered. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2049 * state : An application state (opaque data) to store with the session. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2050 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2051 * DESCRIPTION: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2052 * Stores an application state with a session. This state can later be retrieved |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2053 * with fd_sess_state_retrieve, or implicitly in the cleanup handler when the session |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2054 * is destroyed. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2055 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2056 * RETURN VALUE: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2057 * 0 : The state has been stored. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2058 * EINVAL : A parameter is invalid. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2059 * EALREADY : Data was already associated with this session and client. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2060 * ENOMEM : Not enough memory to complete the operation |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2061 */ |
1088
1d1a20a0779d
Second part of changeset 1083, now the code compiles again. Still missing some functions implementation, though
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1087
diff
changeset
|
2062 int fd_sess_state_store ( struct session_handler * handler, struct session * session, struct sess_state ** state ); |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2063 |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2064 /* |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2065 * FUNCTION: fd_sess_state_retrieve |
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
2066 * |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2067 * PARAMETERS: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2068 * handler : The handler with which the state was registered. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2069 * session : The session object with which the state was registered. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2070 * state : Location where the state must be saved if it is found. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2071 * |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2072 * DESCRIPTION: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2073 * Retrieves a state saved by fd_sess_state_store. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2074 * After this function has been called, the state is no longer associated with |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2075 * the session. A new call to fd_sess_state_store must be performed in order to |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2076 * store again the data with the session. |
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
2077 * |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2078 * RETURN VALUE: |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2079 * 0 : *state is updated (NULL or points to the state if it was found). |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2080 * EINVAL : A parameter is invalid. |
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2081 */ |
1088
1d1a20a0779d
Second part of changeset 1083, now the code compiles again. Still missing some functions implementation, though
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1087
diff
changeset
|
2082 int fd_sess_state_retrieve ( struct session_handler * handler, struct session * session, struct sess_state ** state ); |
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
2083 |
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
2084 |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2085 /* For debug */ |
1085
7d7266115a34
Cleaning of the traces in progress
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1082
diff
changeset
|
2086 DECLARE_FD_DUMP_PROTOTYPE(fd_sess_dump, struct session * session, int with_states); |
7d7266115a34
Cleaning of the traces in progress
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1082
diff
changeset
|
2087 DECLARE_FD_DUMP_PROTOTYPE(fd_sess_dump_hdl, struct session_handler * handler); |
3
ef303f1078ab
Progress; added session module; testsess to be completed
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
2
diff
changeset
|
2088 |
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
changeset
|
2089 /* 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
changeset
|
2090 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
changeset
|
2091 |
2
d8ce06172629
Added a global debug level var
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
1
diff
changeset
|
2092 /*============================================================*/ |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2093 /* ROUTING */ |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2094 /*============================================================*/ |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2095 |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2096 /* The following functions are helpers for the routing module. |
168
6db078b955e3
Completed rt_default extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
156
diff
changeset
|
2097 The routing data is stored in the message itself. */ |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2098 |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2099 /* Structure that contains the routing data for a message */ |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2100 struct rt_data; |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2101 |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2102 /* 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
|
2103 int fd_rtd_init(struct rt_data ** rtd); |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2104 void fd_rtd_free(struct rt_data ** rtd); |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2105 |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2106 /* Add a peer to the candidates list. */ |
4ffbc9f1e922
Large UNTESTED commit with the following changes:
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parents:
705
diff
changeset
|
2107 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
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2108 |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2109 /* 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
|
2110 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
|
2111 |
88
9e2db1647d6f
Completed routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
87
diff
changeset
|
2112 /* 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
|
2113 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
|
2114 |
1019
6fcd30ce3ce7
Retrieve additional information when adding a routing error
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1014
diff
changeset
|
2115 /* If a peer returned a protocol error for this message, save it so that we don't try to send it there again. Optionally retrieve the current list of candidates. */ |
6fcd30ce3ce7
Retrieve additional information when adding a routing error
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1014
diff
changeset
|
2116 int fd_rtd_error_add(struct rt_data * rtd, DiamId_t sentto, size_t senttolen, uint8_t * origin, size_t originsz, uint32_t rcode, struct fd_list ** candidates, int * sendingattemtps); |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2117 |
1097
4d2dcb54d9a6
New function fd_rtd_get_nb_attempts
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1093
diff
changeset
|
2118 /* Only retrieve the number of times this message has been processed by the routing-out mechanism (i.e. number of times it was failed over) */ |
4d2dcb54d9a6
New function fd_rtd_get_nb_attempts
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1093
diff
changeset
|
2119 int fd_rtd_get_nb_attempts(struct rt_data * rtd, int * sendingattemtps); |
4d2dcb54d9a6
New function fd_rtd_get_nb_attempts
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1093
diff
changeset
|
2120 |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2121 /* The extracted list items have the following structure: */ |
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2122 struct rtd_candidate { |
1019
6fcd30ce3ce7
Retrieve additional information when adding a routing error
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1014
diff
changeset
|
2123 struct fd_list chain; /* link in the list returned by the previous fcts */ |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
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|
2124 DiamId_t diamid; /* the diameter Id of the peer */ |
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2125 size_t diamidlen; /* cached size of the diamid string */ |
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2126 DiamId_t realm; /* the diameter realm of the peer */ |
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2127 size_t realmlen; /* cached size of realm */ |
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2128 int score; /* the current routing score for this peer, see fd_rt_out_register definition for details */ |
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2129 }; |
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2130 |
706
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2131 /* Reorder the list of peers by score */ |
83
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2132 int fd_rtd_candidate_reorder(struct fd_list * candidates); |
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2133 |
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2134 /* Note : it is fine for a callback to add a new entry in the candidates list after the list has been extracted. The diamid must then be malloc'd. */ |
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2135 /* Beware that this could lead to routing loops */ |
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2136 |
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2137 /*============================================================*/ |
0 | 2138 /* MESSAGES */ |
2139 /*============================================================*/ | |
2140 | |
2141 /* The following types are opaque */ | |
2142 struct msg; /* A message: command with children AVPs (possibly grand children) */ | |
2143 struct avp; /* AVP object */ | |
2144 | |
2145 /* Some details about chaining: | |
2146 * | |
2147 * A message is made of a header ( msg ) and 0 or more AVPs ( avp ). | |
2148 * The structure is a kind of tree, where some AVPs (grouped AVPs) can contain other AVPs. | |
871 | 2149 * Example: |
0 | 2150 * msg |
2151 * |-avp | |
2152 * |-gavp | |
2153 * | |-avp | |
2154 * | |-avp | |
2155 * | \-avp | |
2156 * |-avp | |
2157 * \-avp | |
2158 * | |
2159 */ | |
2160 | |
2161 /* The following type is used to point to either a msg or an AVP */ | |
2162 typedef void msg_or_avp; | |
2163 | |
2164 /* The Diameter protocol version */ | |
2165 #define DIAMETER_VERSION 1 | |
2166 | |
2167 /* In the two following types, some fields are marked (READONLY). | |
2168 * This means that the content of these fields will be overwritten by the daemon so modifying it is useless. | |
2169 */ | |
2170 | |
2171 /* The following structure represents the header of a message. All data is in host byte order. */ | |
2172 struct msg_hdr { | |
2173 uint8_t msg_version; /* (READONLY) Version of Diameter: must be DIAMETER_VERSION. */ | |
2174 uint32_t msg_length; /* (READONLY)(3 bytes) indicates the length of the message */ | |
2175 uint8_t msg_flags; /* Message flags: CMD_FLAG_* */ | |
2176 command_code_t msg_code; /* (3 bytes) the command-code. See dictionary-api.h for more detail */ | |
2177 application_id_t msg_appl; /* The application issuing this message */ | |
2178 uint32_t msg_hbhid; /* The Hop-by-Hop identifier of the message */ | |
2179 uint32_t msg_eteid; /* The End-to-End identifier of the message */ | |
2180 }; | |
2181 | |
2182 /* The following structure represents the visible content of an AVP. All data is in host byte order. */ | |
2183 struct avp_hdr { | |
2184 avp_code_t avp_code; /* the AVP Code */ | |
2185 uint8_t avp_flags; /* AVP_FLAG_* flags */ | |
2186 uint32_t avp_len; /* (READONLY)(Only 3 bytes are used) the length of the AVP as described in the RFC */ | |
2187 vendor_id_t avp_vendor; /* Only used if AVP_FLAG_VENDOR is present */ | |
2188 union avp_value *avp_value; /* pointer to the value of the AVP. NULL means that the value is not set / not understood. | |
2189 One should not directly change this value. Use the msg_avp_setvalue function instead. | |
2190 The content of the pointed structure can be changed directly, with this restriction: | |
2191 if the AVP is an OctetString, and you change the value of the pointer avp_value->os.data, then | |
2192 you must call free() on the previous value, and the new one must be free()-able. | |
2193 */ | |
2194 }; | |
2195 | |
2196 /* The following enum is used to browse inside message hierarchy (msg, gavp, avp) */ | |
2197 enum msg_brw_dir { | |
2198 MSG_BRW_NEXT = 1, /* Get the next element at the same level, or NULL if this is the last element. */ | |
2199 MSG_BRW_PREV, /* Get the previous element at the same level, or NULL if this is the first element. */ | |
2200 MSG_BRW_FIRST_CHILD, /* Get the first child AVP of this element, if any. */ | |
2201 MSG_BRW_LAST_CHILD, /* Get the last child AVP of this element, if any. */ | |
2202 MSG_BRW_PARENT, /* Get the parent element of this element, if any. Only the msg_t object has no parent. */ | |
2203 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. */ | |
2204 }; | |
2205 | |
972 | 2206 /* Some flags used in the functions below */ |
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2207 #define AVPFL_SET_BLANK_VALUE 0x01 /* When creating an AVP, initialize its value to a blank area */ |
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2208 #define AVPFL_SET_RAWDATA_FROM_AVP 0x02 /* When creating an AVP, initialize its rawdata area from an existing AVP -- it is only blank padding (for error reporting) */ |
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2209 #define AVPFL_MAX AVPFL_SET_RAWDATA_FROM_AVP /* The biggest valid flag value */ |
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2210 |
0 | 2211 #define MSGFL_ALLOC_ETEID 0x01 /* When creating a message, a new end-to-end ID is allocated and set in the message */ |
2212 #define MSGFL_ANSW_ERROR 0x02 /* When creating an answer message, set the 'E' bit and use the generic error ABNF instead of command-specific ABNF */ | |
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2213 #define MSGFL_ANSW_NOSID 0x04 /* When creating an answer message, do not add the Session-Id even if present in request */ |
992
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2214 #define MSGFL_ANSW_NOPROXYINFO 0x08 /* When creating an answer message, do not add the Proxy-Info AVPs presents in request */ |
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2215 #define MSGFL_MAX MSGFL_ANSW_NOPROXYINFO /* The biggest valid flag value */ |
0 | 2216 |
2217 /**************************************************/ | |
2218 /* Message creation, manipulation, disposal */ | |
2219 /**************************************************/ | |
2220 /* | |
2221 * FUNCTION: fd_msg_avp_new | |
2222 * | |
2223 * PARAMETERS: | |
992
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2224 * model : Pointer to a DICT_AVP dictionary object describing the avp to create, or NULL if flags are used. |
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2225 * flags : Flags to use in creation (AVPFL_*, see above). |
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2226 * avp : Upon success, pointer to the new avp is stored here. It points to reference AVP upon function call when flags are used. |
0 | 2227 * |
2228 * DESCRIPTION: | |
2229 * Create a new AVP instance. | |
2230 * | |
2231 * RETURN VALUE: | |
2232 * 0 : The AVP is created. | |
2233 * EINVAL : A parameter is invalid. | |
2234 * (other standard errors may be returned, too, with their standard meaning. Example: | |
2235 * ENOMEM : Memory allocation for the new avp failed.) | |
2236 */ | |
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2237 int fd_msg_avp_new ( struct dict_object * model, int flags, struct avp ** avp ); |
0 | 2238 |
2239 /* | |
2240 * FUNCTION: fd_msg_new | |
2241 * | |
2242 * PARAMETERS: | |
2243 * model : Pointer to a DICT_COMMAND dictionary object describing the message to create, or NULL. | |
2244 * flags : combination of MSGFL_* flags. | |
2245 * msg : Upon success, pointer to the new message is stored here. | |
2246 * | |
2247 * DESCRIPTION: | |
2248 * Create a new empty Diameter message. | |
2249 * | |
2250 * RETURN VALUE: | |
2251 * 0 : The message is created. | |
2252 * EINVAL : A parameter is invalid. | |
2253 * (other standard errors may be returned, too, with their standard meaning. Example: | |
2254 * ENOMEM : Memory allocation for the new message failed.) | |
2255 */ | |
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2256 int fd_msg_new ( struct dict_object * model, int flags, struct msg ** msg ); |
0 | 2257 |
2258 /* | |
2259 * FUNCTION: msg_new_answer_from_req | |
2260 * | |
2261 * PARAMETERS: | |
2262 * dict : Pointer to the dictionary containing the model of the query. | |
2263 * msg : The location of the query on function call. Updated by the location of answer message on return. | |
2264 * flag : Pass MSGFL_ANSW_ERROR to indicate if the answer is an error message (will set the 'E' bit) | |
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2265 * : See other MSGFL_ANSW_* definition above for other flags. |
0 | 2266 * |
2267 * DESCRIPTION: | |
2268 * This function creates the empty answer message corresponding to a request. | |
2269 * The header is set properly (R flag, ccode, appid, hbhid, eteid) | |
2270 * The Session-Id AVP is copied if present. | |
2271 * The calling code should usually call fd_msg_rescode_set function on the answer. | |
2272 * Upon return, the original query may be retrieved by calling fd_msg_answ_getq on the message. | |
2273 * | |
2274 * RETURN VALUE: | |
2275 * 0 : Operation complete. | |
2276 * !0 : an error occurred. | |
2277 */ | |
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2278 int fd_msg_new_answer_from_req ( struct dictionary * dict, struct msg ** msg, int flag ); |
0 | 2279 |
2280 /* | |
2281 * FUNCTION: fd_msg_browse | |
2282 * | |
2283 * PARAMETERS: | |
2284 * reference : Pointer to a struct msg or struct avp. | |
2285 * dir : Direction for browsing | |
2286 * found : If not NULL, updated with the element that has been found, if any, or NULL if no element was found / an error occurred. | |
2287 * 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. | |
2288 * | |
2289 * DESCRIPTION: | |
2290 * Explore the content of a message object (hierarchy). If "found" is null, only error checking is performed. | |
2291 * If "depth" is provided, it is updated as follow on successful function return: | |
2292 * - not modified for MSG_BRW_NEXT and MSG_BRW_PREV. | |
2293 * - *depth = *depth + 1 for MSG_BRW_FIRST_CHILD and MSG_BRW_LAST_CHILD. | |
2294 * - *depth = *depth - 1 for MSG_BRW_PARENT. | |
2295 * - *depth = *depth + X for MSG_BRW_WALK, with X between 1 (returned the 1st child) and -N (returned the Nth parent's next). | |
2296 * | |
2297 * RETURN VALUE: | |
2298 * 0 : found has been updated (if non NULL). | |
2299 * EINVAL : A parameter is invalid. | |
2300 * ENOENT : No element has been found where requested, and "found" was NULL (otherwise, *found is set to NULL and 0 is returned). | |
2301 */ | |
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2302 int fd_msg_browse_internal ( msg_or_avp * reference, enum msg_brw_dir dir, msg_or_avp ** found, int * depth ); |
0 | 2303 /* Macro to avoid having to cast the third parameter everywhere */ |
2304 #define fd_msg_browse( ref, dir, found, depth ) \ | |
2305 fd_msg_browse_internal( (ref), (dir), (void *)(found), (depth) ) | |
2306 | |
2307 | |
2308 /* | |
2309 * FUNCTION: fd_msg_avp_add | |
2310 * | |
2311 * PARAMETERS: | |
2312 * reference : Pointer to a valid msg or avp. | |
2313 * dir : location where the new AVP should be inserted, relative to the reference. MSG_BRW_PARENT and MSG_BRW_WALK are not valid. | |
2314 * avp : pointer to the AVP object that must be inserted. | |
2315 * | |
2316 * DESCRIPTION: | |
2317 * Adds an AVP into an object that can contain it: grouped AVP or message. | |
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2318 * Note that the added AVP will be freed at the same time as the object it is added to, |
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2319 * so it should not be freed after the call to this function. |
0 | 2320 * |
2321 * RETURN VALUE: | |
2322 * 0 : The AVP has been added. | |
2323 * EINVAL : A parameter is invalid. | |
2324 */ | |
2325 int fd_msg_avp_add ( msg_or_avp * reference, enum msg_brw_dir dir, struct avp *avp); | |
2326 | |
2327 /* | |
2328 * FUNCTION: fd_msg_search_avp | |
2329 * | |
2330 * PARAMETERS: | |
2331 * msg : The message structure in which to search the AVP. | |
2332 * what : The dictionary model of the AVP to search. | |
2333 * avp : location where the AVP reference is stored if found. | |
2334 * | |
2335 * DESCRIPTION: | |
2336 * Search the first top-level AVP of a given model inside a message. | |
2337 * Note: only the first instance of the AVP is returned by this function. | |
2338 * Note: only top-level AVPs are searched, not inside grouped AVPs. | |
2339 * Use msg_browse if you need more advanced research features. | |
2340 * | |
2341 * RETURN VALUE: | |
2342 * 0 : The AVP has been found. | |
2343 * EINVAL : A parameter is invalid. | |
2344 * ENOENT : No AVP has been found, and "avp" was NULL (otherwise, *avp is set to NULL and 0 returned). | |
2345 */ | |
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2346 int fd_msg_search_avp ( struct msg * msg, struct dict_object * what, struct avp ** avp ); |
0 | 2347 |
2348 /* | |
2349 * FUNCTION: fd_msg_free | |
2350 * | |
2351 * PARAMETERS: | |
2352 * object : pointer to the message or AVP object that must be unlinked and freed. | |
2353 * | |
2354 * DESCRIPTION: | |
2355 * Unlink and free a message or AVP object and its children. | |
2356 * If the object is an AVP linked into a message, the AVP is removed before being freed. | |
2357 * | |
2358 * RETURN VALUE: | |
2359 * 0 : The message has been freed. | |
2360 * EINVAL : A parameter is invalid. | |
2361 */ | |
2362 int fd_msg_free ( msg_or_avp * object ); | |
2363 | |
2364 /***************************************/ | |
2365 /* Dump functions */ | |
2366 /***************************************/ | |
2367 /* | |
2368 * FUNCTION: fd_msg_dump_* | |
2369 * | |
2370 * PARAMETERS: | |
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2371 * see definition of DECLARE_FD_DUMP_PROTOTYPE, |
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2372 * obj : A msg or avp object to dump. |
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2373 * dict : the dictionary to use if parsing is requested (optional) |
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2374 * force_parsing: by default these functions do not parse the object but dump hexa values in that case. |
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2375 * use !0 to force parsing. If parsing fails, the hexa dump is still provided. |
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2376 * recurse : allow the function to go through the children objects if any to dump more information. might require parsing. |
0 | 2377 * |
2378 * DESCRIPTION: | |
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2379 * These functions dump the content of a message or avp into a buffer |
0 | 2380 * either recursively or only the object itself. |
2381 * | |
2382 * RETURN VALUE: | |
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2383 * - see DECLARE_FD_DUMP_PROTOTYPE, |
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2384 */ |
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2385 /* one-line dump with only short information */ |
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2386 DECLARE_FD_DUMP_PROTOTYPE( fd_msg_dump_summary, msg_or_avp *obj, struct dictionary *dict, int force_parsing, int recurse ); |
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2387 /* one-line dump with all the contents of the message */ |
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2388 DECLARE_FD_DUMP_PROTOTYPE( fd_msg_dump_full, msg_or_avp *obj, struct dictionary *dict, int force_parsing, int recurse ); |
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2389 /* multi-line human-readable dump similar to wireshark output */ |
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2390 DECLARE_FD_DUMP_PROTOTYPE( fd_msg_dump_treeview, msg_or_avp *obj, struct dictionary *dict, int force_parsing, int recurse ); |
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2391 |
0 | 2392 |
2393 /*********************************************/ | |
2394 /* Message metadata management functions */ | |
2395 /*********************************************/ | |
2396 /* | |
2397 * FUNCTION: fd_msg_model | |
2398 * | |
2399 * PARAMETERS: | |
2400 * reference : Pointer to a valid msg or avp. | |
2401 * model : on success, pointer to the dictionary model of this command or AVP. NULL if the model is unknown. | |
2402 * | |
2403 * DESCRIPTION: | |
2404 * Retrieve the dictionary object describing this message or avp. If the object is unknown or the fd_msg_parse_dict has not been called, | |
2405 * *model is set to NULL. | |
2406 * | |
2407 * RETURN VALUE: | |
2408 * 0 : The model has been set. | |
2409 * EINVAL : A parameter is invalid. | |
2410 */ | |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2411 int fd_msg_model ( msg_or_avp * reference, struct dict_object ** model ); |
0 | 2412 |
2413 /* | |
2414 * FUNCTION: fd_msg_hdr | |
2415 * | |
2416 * PARAMETERS: | |
2417 * msg : Pointer to a valid message object. | |
2418 * pdata : Upon success, pointer to the msg_hdr structure of this message. The fields may be modified. | |
2419 * | |
2420 * DESCRIPTION: | |
2421 * Retrieve location of modifiable section of a message. | |
2422 * | |
2423 * RETURN VALUE: | |
2424 * 0 : The location has been written. | |
2425 * EINVAL : A parameter is invalid. | |
2426 */ | |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2427 int fd_msg_hdr ( struct msg *msg, struct msg_hdr ** pdata ); |
0 | 2428 |
2429 /* | |
2430 * FUNCTION: fd_msg_avp_hdr | |
2431 * | |
2432 * PARAMETERS: | |
2433 * avp : Pointer to a valid avp object. | |
2434 * pdata : Upon success, pointer to the avp_hdr structure of this avp. The fields may be modified. | |
2435 * | |
2436 * DESCRIPTION: | |
2437 * Retrieve location of modifiable data of an avp. | |
2438 * | |
2439 * RETURN VALUE: | |
2440 * 0 : The location has been written. | |
2441 * EINVAL : A parameter is invalid. | |
2442 */ | |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2443 int fd_msg_avp_hdr ( struct avp *avp, struct avp_hdr ** pdata ); |
0 | 2444 |
2445 /* | |
2446 * FUNCTION: fd_msg_answ_associate, fd_msg_answ_getq, fd_msg_answ_detach | |
2447 * | |
2448 * PARAMETERS: | |
2449 * answer : the received answer message | |
2450 * query : the corresponding query that had been sent | |
2451 * | |
2452 * DESCRIPTION: | |
2453 * fd_msg_answ_associate associates a query msg with the received answer. | |
2454 * Query is retrieved with fd_msg_answ_getq. | |
2455 * If answer message is freed, the query is also freed. | |
2456 * If the msg_answ_detach function is called, the association is removed. | |
2457 * This is meant to be called from the daemon only. | |
2458 * | |
2459 * RETURN VALUE: | |
2460 * 0 : ok | |
2461 * EINVAL: a parameter is invalid | |
2462 */ | |
2463 int fd_msg_answ_associate( struct msg * answer, struct msg * query ); | |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2464 int fd_msg_answ_getq ( struct msg * answer, struct msg ** query ); |
0 | 2465 int fd_msg_answ_detach ( struct msg * answer ); |
2466 | |
2467 /* | |
2468 * FUNCTION: fd_msg_anscb_associate, fd_msg_anscb_get | |
2469 * | |
2470 * PARAMETERS: | |
1014
908ffbb81f60
Added a second callback in fd_msg_send_timeout to handle more easily the timeout situation
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1004
diff
changeset
|
2471 * msg : the request message |
0 | 2472 * anscb : the callback to associate with the message |
2473 * data : the data to pass to the callback | |
1014
908ffbb81f60
Added a second callback in fd_msg_send_timeout to handle more easily the timeout situation
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1004
diff
changeset
|
2474 * expirecb : the expiration callback to associate with the message |
646
cfc8da9264f4
Prepared first part of the changes for #10
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
639
diff
changeset
|
2475 * timeout : (optional, use NULL if no timeout) a timeout associated with calling the cb. |
0 | 2476 * |
2477 * DESCRIPTION: | |
1014
908ffbb81f60
Added a second callback in fd_msg_send_timeout to handle more easily the timeout situation
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parents:
1004
diff
changeset
|
2478 * Associate or retrieve callbacks with an message. |
0 | 2479 * This is meant to be called from the daemon only. |
2480 * | |
2481 * RETURN VALUE: | |
2482 * 0 : ok | |
2483 * EINVAL: a parameter is invalid | |
2484 */ | |
1014
908ffbb81f60
Added a second callback in fd_msg_send_timeout to handle more easily the timeout situation
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1004
diff
changeset
|
2485 int fd_msg_anscb_associate( struct msg * msg, void ( *anscb)(void *, struct msg **), void * data, void (*expirecb)(void *, DiamId_t, size_t, struct msg **), const struct timespec *timeout ); |
908ffbb81f60
Added a second callback in fd_msg_send_timeout to handle more easily the timeout situation
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1004
diff
changeset
|
2486 int fd_msg_anscb_get( struct msg * msg, void (**anscb)(void *, struct msg **), void (**expirecb)(void *, DiamId_t, size_t, struct msg **), void ** data ); |
649
5e5d8152c229
Implemented fd_msg_send_timeout to close #10. Not tested yet.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
648
diff
changeset
|
2487 struct timespec *fd_msg_anscb_gettimeout( struct msg * msg ); /* returns NULL or a valid non-0 timespec */ |
0 | 2488 |
2489 /* | |
2490 * FUNCTION: fd_msg_rt_associate, fd_msg_rt_get | |
2491 * | |
2492 * PARAMETERS: | |
2493 * msg : the query message to be sent | |
2494 * list : the ordered list of possible next-peers | |
2495 * | |
2496 * DESCRIPTION: | |
2497 * Associate a routing list with a query, and retrieve it. | |
2498 * If the message is freed, the list is also freed. | |
2499 * | |
2500 * RETURN VALUE: | |
2501 * 0 : ok | |
2502 * EINVAL: a parameter is invalid | |
2503 */ | |
83
c662d3eb6ff6
Started support for routing module
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
43
diff
changeset
|
2504 int fd_msg_rt_associate( struct msg * msg, struct rt_data ** rtd ); |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
618
diff
changeset
|
2505 int fd_msg_rt_get ( struct msg * msg, struct rt_data ** rtd ); |
0 | 2506 |
2507 /* | |
2508 * FUNCTION: fd_msg_is_routable | |
2509 * | |
2510 * PARAMETERS: | |
2511 * msg : A msg object. | |
2512 * | |
2513 * DESCRIPTION: | |
2514 * This function returns a boolean telling if a given message is routable in the Diameter network, | |
2515 * or if it is a local link message only (ex: CER/CEA, DWR/DWA, ...). | |
2516 * | |
2517 * RETURN VALUE: | |
2518 * 0 : The message is not routable / an error occurred. | |
2519 * 1 : The message is routable. | |
2520 */ | |
2521 int fd_msg_is_routable ( struct msg * msg ); | |
2522 | |
2523 /* | |
2524 * FUNCTION: fd_msg_source_(g/s)et | |
2525 * | |
2526 * PARAMETERS: | |
2527 * msg : A msg object. | |
706
4ffbc9f1e922
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2528 * diamid,len : The diameter id of the peer from which this message was received. |
1120
c473581adff2
Cleanup some traces
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1119
diff
changeset
|
2529 * dict : a dictionary with definition of Route-Record AVP (for fd_msg_source_setrr) |
0 | 2530 * |
2531 * DESCRIPTION: | |
2532 * Store or retrieve the diameted id of the peer from which this message was received. | |
2533 * Will be used for example by the routing module to add the Route-Record AVP in forwarded requests, | |
2534 * or to direct answers to the appropriate peer. | |
2535 * | |
2536 * RETURN VALUE: | |
2537 * 0 : Operation complete. | |
2538 * !0 : an error occurred. | |
2539 */ | |
1120
c473581adff2
Cleanup some traces
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1119
diff
changeset
|
2540 int fd_msg_source_set( struct msg * msg, DiamId_t diamid, size_t diamidlen ); |
c473581adff2
Cleanup some traces
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1119
diff
changeset
|
2541 int fd_msg_source_setrr( struct msg * msg, DiamId_t diamid, size_t diamidlen, struct dictionary * dict ); |
706
4ffbc9f1e922
Large UNTESTED commit with the following changes:
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
705
diff
changeset
|
2542 int fd_msg_source_get( struct msg * msg, DiamId_t *diamid, size_t * diamidlen ); |
0 | 2543 |
2544 /* | |
2545 * FUNCTION: fd_msg_eteid_get | |
2546 * | |
2547 * PARAMETERS: | |
2548 * - | |
2549 * | |
2550 * DESCRIPTION: | |
2551 * Get a new unique end-to-end id value for the local peer. | |
2552 * | |
2553 * RETURN VALUE: | |
2554 * The new assigned value. No error code is defined. | |
2555 */ | |
2556 uint32_t fd_msg_eteid_get ( void ); | |
2557 | |
2558 | |
85
e5fcd672caff
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parents:
83
diff
changeset
|
2559 /* |
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2560 * FUNCTION: fd_msg_sess_get |
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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diff
changeset
|
2561 * |
e5fcd672caff
Added new function to retrieve messages sessions easily
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2562 * PARAMETERS: |
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2563 * dict : the dictionary that contains the Session-Id AVP definition |
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2564 * msg : A valid message. |
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2565 * session : Location to store the session pointer when retrieved. |
653
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
diff
changeset
|
2566 * isnew : Indicates if the session has been created. |
85
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
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|
2567 * |
e5fcd672caff
Added new function to retrieve messages sessions easily
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2568 * DESCRIPTION: |
e5fcd672caff
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parents:
83
diff
changeset
|
2569 * This function retrieves or creates the session object corresponding to a message. |
e5fcd672caff
Added new function to retrieve messages sessions easily
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2570 * If the message does not contain a Session-Id AVP, *session == NULL on return. |
e5fcd672caff
Added new function to retrieve messages sessions easily
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2571 * Note that the Session-Id AVP must never be modified after created in a message. |
e5fcd672caff
Added new function to retrieve messages sessions easily
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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|
2572 * |
e5fcd672caff
Added new function to retrieve messages sessions easily
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2573 * RETURN VALUE: |
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
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changeset
|
2574 * 0 : success |
e5fcd672caff
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parents:
83
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changeset
|
2575 * !0 : standard error code. |
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2576 */ |
653
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
diff
changeset
|
2577 int fd_msg_sess_get(struct dictionary * dict, struct msg * msg, struct session ** session, int * isnew); |
85
e5fcd672caff
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Sebastien Decugis <sdecugis@nict.go.jp>
parents:
83
diff
changeset
|
2578 |
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
|
2579 /* This one is used by the libfdcore, you should use fd_msg_new_session rather than fd_sess_new, when possible */ |
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
Sebastien Decugis <sdecugis@freediameter.net>
parents:
922
diff
changeset
|
2580 int fd_msg_sess_set(struct msg * msg, struct session * session); |
877592751fee
Fix (tentative) for invalid handling of sessions fast creation/destruction as pointed by Yusuke Okura -- http://lists.freediameter.net/pipermail/help/2013-February/000584.html and http://lists.freediameter.net/pipermail/help/2013-February/000589.html -- Thank you very much
Sebastien Decugis <sdecugis@freediameter.net>
parents:
922
diff
changeset
|
2581 |
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
|
2582 |
1098
f38d77f9cfd3
Initial implementation of the hook mechanism
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parents:
1097
diff
changeset
|
2583 /* Helper for the hooks mechanism, for use from libfdcore */ |
f38d77f9cfd3
Initial implementation of the hook mechanism
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parents:
1097
diff
changeset
|
2584 struct fd_msg_pmdl { |
f38d77f9cfd3
Initial implementation of the hook mechanism
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parents:
1097
diff
changeset
|
2585 struct fd_list sentinel; /* if the sentinel.o field is NULL, the structure is not initialized. Otherwise it points to the cleanup function in libfdcore. */ |
f38d77f9cfd3
Initial implementation of the hook mechanism
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parents:
1097
diff
changeset
|
2586 pthread_mutex_t lock; |
f38d77f9cfd3
Initial implementation of the hook mechanism
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1097
diff
changeset
|
2587 }; |
f38d77f9cfd3
Initial implementation of the hook mechanism
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parents:
1097
diff
changeset
|
2588 struct fd_msg_pmdl * fd_msg_pmdl_get(struct msg * msg); |
f38d77f9cfd3
Initial implementation of the hook mechanism
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1097
diff
changeset
|
2589 |
1102
1d7b3ebda27f
Implemented the calls to HOOK_DATA_RECEIVED hook
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1101
diff
changeset
|
2590 |
0 | 2591 /***************************************/ |
2592 /* Manage AVP values */ | |
2593 /***************************************/ | |
2594 | |
2595 /* | |
2596 * FUNCTION: fd_msg_avp_setvalue | |
2597 * | |
2598 * PARAMETERS: | |
2599 * avp : Pointer to a valid avp object with a NULL avp_value pointer. The model must be known. | |
2600 * value : pointer to an avp_value. The content will be COPIED into the internal storage area. | |
2601 * If data type is an octetstring, the data is also copied. | |
2602 * If value is a NULL pointer, the previous data is erased and value is unset in the AVP. | |
2603 * | |
2604 * DESCRIPTION: | |
2605 * Initialize the avp_value field of an AVP header. | |
2606 * | |
2607 * RETURN VALUE: | |
2608 * 0 : The avp_value pointer has been set. | |
2609 * EINVAL : A parameter is invalid. | |
2610 */ | |
2611 int fd_msg_avp_setvalue ( struct avp *avp, union avp_value *value ); | |
2612 | |
2613 /* | |
2614 * FUNCTION: fd_msg_avp_value_encode | |
2615 * | |
2616 * PARAMETERS: | |
2617 * avp : Pointer to a valid avp object with a NULL avp_value. The model must be known. | |
2618 * data : Pointer to the data that must be encoded as AVP value and stored in the AVP. | |
2619 * This is only valid for AVPs of derived type for which type_data_encode callback is set. (ex: Address type) | |
2620 * | |
2621 * DESCRIPTION: | |
2622 * Initialize the avp_value field of an AVP object from formatted data, using the AVP's type "type_data_encode" callback. | |
2623 * | |
2624 * RETURN VALUE: | |
2625 * 0 : The avp_value has been set. | |
2626 * EINVAL : A parameter is invalid. | |
2627 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
2628 */ | |
2629 int fd_msg_avp_value_encode ( void *data, struct avp *avp ); | |
2630 /* | |
2631 * FUNCTION: fd_msg_avp_value_interpret | |
2632 * | |
2633 * PARAMETERS: | |
2634 * avp : Pointer to a valid avp object with a non-NULL avp_value value. | |
2635 * data : Upon success, formatted interpretation of the AVP value is stored here. | |
2636 * | |
2637 * DESCRIPTION: | |
2638 * Interpret the content of an AVP of Derived type and store the result in data pointer. The structure | |
2639 * of the data pointer is dependent on the AVP type. This function calls the "type_data_interpret" callback | |
2640 * of the type. | |
2641 * | |
2642 * RETURN VALUE: | |
2643 * 0 : The avp_value has been set. | |
2644 * EINVAL : A parameter is invalid. | |
2645 * ENOTSUP : There is no appropriate callback registered with this AVP's type. | |
2646 */ | |
2647 int fd_msg_avp_value_interpret ( struct avp *avp, void *data ); | |
2648 | |
2649 | |
2650 /***************************************/ | |
2651 /* Message parsing functions */ | |
2652 /***************************************/ | |
2653 | |
2654 /* | |
2655 * FUNCTION: fd_msg_bufferize | |
2656 * | |
2657 * PARAMETERS: | |
2658 * msg : A valid msg object. All AVPs must have a value set. | |
2659 * buffer : Upon success, this points to a buffer (malloc'd) containing the message ready for network transmission (or security transformations). | |
2660 * The buffer may be freed after use. | |
2661 * len : if not NULL, the size of the buffer is written here. In any case, this size is updated in the msg header. | |
2662 * | |
2663 * DESCRIPTION: | |
2664 * Renders a message in memory as a buffer that can be sent over the network to the next peer. | |
2665 * | |
2666 * RETURN VALUE: | |
2667 * 0 : The location has been written. | |
2668 * EINVAL : The buffer does not contain a valid Diameter message. | |
2669 * ENOMEM : Unable to allocate enough memory to create the buffer object. | |
2670 */ | |
706
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diff
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|
2671 int fd_msg_bufferize ( struct msg * msg, uint8_t ** buffer, size_t * len ); |
0 | 2672 |
2673 /* | |
2674 * FUNCTION: fd_msg_parse_buffer | |
2675 * | |
2676 * PARAMETERS: | |
2677 * buffer : Pointer to a buffer containing a message received from the network. | |
2678 * buflen : the size in bytes of the buffer. | |
2679 * msg : Upon success, this points to a valid msg object. No AVP value is resolved in this object, nor grouped AVP. | |
2680 * | |
2681 * DESCRIPTION: | |
2682 * This function parses a buffer an creates a msg object to represent the structure of the message. | |
2683 * Since no dictionary lookup is performed, the values of the AVPs are not interpreted. To interpret the values, | |
2684 * the returned message object must be passed to fd_msg_parse_dict function. | |
2685 * The buffer pointer is saved inside the message and will be freed when not needed anymore. | |
2686 * | |
2687 * RETURN VALUE: | |
2688 * 0 : The location has been written. | |
2689 * ENOMEM : Unable to allocate enough memory to create the msg object. | |
2690 * EBADMSG : The buffer does not contain a valid Diameter message (or is truncated). | |
2691 * EINVAL : A parameter is invalid. | |
2692 */ | |
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|
2693 int fd_msg_parse_buffer ( uint8_t ** buffer, size_t buflen, struct msg ** msg ); |
0 | 2694 |
114
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Reporting errors in parse_dict function
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parents:
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diff
changeset
|
2695 /* Parsing Error Information structure */ |
5b3868944e2b
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diff
changeset
|
2696 struct fd_pei { |
5b3868944e2b
Reporting errors in parse_dict function
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112
diff
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|
2697 char * pei_errcode; /* name of the error code to use */ |
891
9432ac55823c
Tentative fix for the parse_or_error function
Sebastien Decugis <sdecugis@freediameter.net>
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871
diff
changeset
|
2698 struct avp * pei_avp; /* pointer to invalid (in original message) or missing AVP (to be freed) */ |
114
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Reporting errors in parse_dict function
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parents:
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diff
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|
2699 char * pei_message; /* Overwrite default message if needed */ |
5b3868944e2b
Reporting errors in parse_dict function
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
112
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|
2700 int pei_protoerr; /* do we set the 'E' bit in the error message ? */ |
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Reporting errors in parse_dict function
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|
2701 }; |
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Reporting errors in parse_dict function
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|
2702 |
0 | 2703 /* |
2704 * FUNCTION: fd_msg_parse_dict | |
2705 * | |
2706 * PARAMETERS: | |
2707 * object : A msg or AVP object as returned by fd_msg_parse_buffer. | |
2708 * dict : the dictionary containing the objects definitions to use for resolving all AVPs. | |
114
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|
2709 * error_info : If not NULL, will contain the detail about error upon return. May be used to generate an error reply. |
0 | 2710 * |
2711 * DESCRIPTION: | |
2712 * This function looks up for the command and each children AVP definitions in the dictionary. | |
2713 * If the dictionary definition is found, avp_model is set and the value of the AVP is interpreted accordingly and: | |
2714 * - for grouped AVPs, the children AVP are created and interpreted also. | |
2715 * - for numerical AVPs, the value is converted to host byte order and saved in the avp_value field. | |
2716 * - for octetstring AVPs, the string is copied into a new buffer and its address is saved in avp_value. | |
2717 * If the dictionary definition is not found, avp_model is set to NULL and | |
2718 * the content of the AVP is saved as an octetstring in an internal structure. avp_value is NULL. | |
637
22e8fac3b2d6
Split interface file in modules
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
621
diff
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|
2719 * 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 | 2720 * |
2721 * RETURN VALUE: | |
2722 * 0 : The message has been fully parsed as described. | |
2723 * EINVAL : The msg parameter is invalid for this operation. | |
2724 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
2725 * ENOTSUP : No dictionary definition for the command or one of the mandatory AVP was found. | |
2726 */ | |
620
bc7328e600f0
Removed the OUTPUT specification for SWIG, too complex
Sebastien Decugis <sdecugis@nict.go.jp>
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618
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|
2727 int fd_msg_parse_dict ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info ); |
34
0e2b57789361
Backup for the WE, some warnings remaining
Sebastien Decugis <sdecugis@nict.go.jp>
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diff
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|
2728 |
0 | 2729 /* |
2730 * FUNCTION: fd_msg_parse_rules | |
2731 * | |
2732 * PARAMETERS: | |
2733 * object : A msg or grouped avp object that must be verified. | |
2734 * dict : The dictionary containing the rules definitions. | |
34
0e2b57789361
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parents:
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|
2735 * error_info : If not NULL, the first problem information will be saved here. |
0 | 2736 * |
2737 * DESCRIPTION: | |
2738 * Check that the children of the object do not conflict with the dictionary rules (ABNF compliance). | |
2739 * | |
2740 * RETURN VALUE: | |
2741 * 0 : The message has been fully parsed and complies to the defined rules. | |
2742 * EBADMSG : A conflict was detected, or a mandatory AVP is unknown in the dictionary. | |
2743 * EINVAL : The msg or avp object is invalid for this operation. | |
2744 * ENOMEM : Unable to allocate enough memory to complete the operation. | |
2745 */ | |
620
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Removed the OUTPUT specification for SWIG, too complex
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|
2746 int fd_msg_parse_rules ( msg_or_avp * object, struct dictionary * dict, struct fd_pei * error_info); |
34
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|
2747 |
0 | 2748 |
2749 | |
2750 /* | |
2751 * FUNCTION: fd_msg_update_length | |
2752 * | |
2753 * PARAMETERS: | |
2754 * object : Pointer to a valid msg or avp. | |
2755 * | |
2756 * DESCRIPTION: | |
2757 * Update the length field of the object passed as parameter. | |
2758 * As a side effect, all children objects are also updated. Therefore, all avp_value fields of | |
2759 * the children AVPs must be set, or an error will occur. | |
2760 * | |
2761 * RETURN VALUE: | |
2762 * 0 : The size has been recomputed. | |
2763 * EINVAL : A parameter is invalid. | |
2764 */ | |
2765 int fd_msg_update_length ( msg_or_avp * object ); | |
2766 | |
2767 | |
7
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2768 /*============================================================*/ |
e5af94b04946
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2769 /* DISPATCH */ |
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2770 /*============================================================*/ |
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2771 |
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2772 /* Dispatch module (passing incoming messages to extensions registered callbacks) |
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2773 * is split between the library and the daemon. |
e5af94b04946
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2774 * |
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2775 * The library provides the support for associating dispatch callbacks with |
e5af94b04946
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2776 * dictionary objects. |
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2777 * |
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2778 * The daemon is responsible for calling the callbacks for a message when appropriate. |
e5af94b04946
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2779 * |
e5af94b04946
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diff
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|
2780 * |
e5af94b04946
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|
2781 * The dispatch module has two main roles: |
e5af94b04946
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2782 * - help determine if a message can be handled locally (during the routing step) |
e5af94b04946
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2783 * This decision involves only the application-id of the message. |
e5af94b04946
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2784 * - pass the message to the callback(s) that will handle it (during the dispatch step) |
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diff
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2785 * |
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2786 * The first role is handled by the daemon. |
e5af94b04946
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|
2787 * |
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2788 * About the second, these are the possibilities for registering a dispatch callback: |
e5af94b04946
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|
2789 * |
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2790 * -> For All messages. |
e5af94b04946
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2791 * This callback is called for all messages that are handled locally. This should be used only |
e5af94b04946
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2792 * for debug purpose. |
e5af94b04946
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|
2793 * |
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2794 * -> by AVP value (constants only). |
e5af94b04946
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2795 * This callback will be called when a message is received and contains an AVP with a specified enumerated value. |
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|
2796 * |
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2797 * -> by AVP. |
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2798 * This callback will be called when the received message contains a certain AVP. |
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|
2799 * |
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2800 * -> by command-code. |
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2801 * This callback will be called when the message is a specific command (and 'R' flag). |
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2802 * |
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2803 * -> by application. |
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2804 * This callback will be called when the message has a specific application-id. |
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2805 * |
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2806 * ( by vendor: would this be useful? it may be added later) |
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|
2807 */ |
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|
2808 enum disp_how { |
e5af94b04946
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2809 DISP_HOW_ANY = 1, /* Any message. This should be only used for debug. */ |
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2810 DISP_HOW_APPID, /* Any message with the specified application-id */ |
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2811 DISP_HOW_CC, /* Messages of the specified command-code (request or answer). App id may be specified. */ |
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2812 DISP_HOW_AVP, /* Messages containing a specific AVP. Command-code and App id may be specified. */ |
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2813 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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2814 }; |
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|
2815 /* |
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2816 * Several criteria may be selected at the same time, for example command-code AND application id. |
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2817 * |
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2818 * If several callbacks are registered for the same object, they are called in the order they were registered. |
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2819 * The order in which the callbacks are called is: |
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2820 * DISP_HOW_ANY |
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2821 * DISP_HOW_AVP_ENUMVAL & DISP_HOW_AVP |
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2822 * DISP_HOW_CC |
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2823 * DISP_HOW_APPID |
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2824 */ |
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2825 |
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2826 /* When a callback is registered, a "when" argument is passed in addition to the disp_how value, |
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2827 * to specify which values the criteria must match. */ |
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2828 struct disp_when { |
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2829 struct dict_object * app; |
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2830 struct dict_object * command; |
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2831 struct dict_object * avp; |
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2832 struct dict_object * value; |
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2833 }; |
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2834 |
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2835 /* Note that all the dictionary objects should really belong to the same dictionary! |
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2836 * |
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2837 * Here is the details on this "when" argument, depending on the disp_how value. |
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2838 * |
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2839 * DISP_HOW_ANY. |
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2840 * In this case, "when" must be NULL. |
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2841 * |
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2842 * DISP_HOW_APPID. |
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2843 * 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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2844 * |
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2845 * DISP_HOW_CC. |
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2846 * The "command" field must be defined and point to a dictionary object of type DICT_COMMAND. |
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2847 * 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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2848 * The other fields are ignored. |
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|
2849 * |
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2850 * DISP_HOW_AVP. |
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2851 * The "avp" field of the structure must be set and point to a dictionary object of type DICT_AVP. |
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2852 * The "app_id" field may be set to restrict the messages matching to a specific app id. |
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2853 * The "command" field may also be set to a valid DICT_COMMAND object. |
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2854 * The content of the "value" field is ignored. |
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changeset
|
2855 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2856 * DISP_HOW_AVP_ENUMVAL. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2857 * All fields have the same constraints and meaning as in DISP_REG_AVP. In addition, the "value" field must be set |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2858 * and points to a valid DICT_ENUMVAL object. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2859 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2860 * Here is a sumary of the fields: ( M : must be set; m : may be set; 0 : ignored ) |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2861 * field: app_id command avp value |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2862 * APPID : M 0 0 0 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2863 * CC : m M 0 0 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2864 * AVP : m m M 0 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2865 * ENUMVA: m m M M |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2866 */ |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2867 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2868 enum disp_action { |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2869 DISP_ACT_CONT, /* The next handler should be called, unless *msg == NULL. */ |
90
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2870 DISP_ACT_SEND, /* The updated message must be sent. No further callback is called. */ |
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2871 DISP_ACT_ERROR /* An error must be created and sent as a reply -- not valid for callbacks, only for fd_msg_dispatch. */ |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2872 }; |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2873 /* 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
|
2874 * 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
|
2875 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2876 * CALLBACK: dispatch_callback |
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 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2879 * 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
|
2880 * 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
|
2881 * 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
|
2882 * 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
|
2883 * 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
|
2884 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2885 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2886 * 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
|
2887 * 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
|
2888 * - create an answer for a request. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2889 * - 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
|
2890 * - 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
|
2891 * - ... |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2892 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2893 * 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
|
2894 * 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
|
2895 * 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
|
2896 * - 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
|
2897 * - 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
|
2898 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2899 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2900 * 0 : The callback executed successfully and updated *action appropriately. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2901 * !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
|
2902 */ |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2903 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2904 /* 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
|
2905 struct disp_hdl; |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2906 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2907 /* |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2908 * FUNCTION: fd_disp_register |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2909 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2910 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2911 * 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
|
2912 * how : How the callback must be registered. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2913 * 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
|
2914 * 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
|
2915 * 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
|
2916 * 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
|
2917 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2918 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2919 * 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
|
2920 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2921 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2922 * 0 : The callback is registered. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2923 * EINVAL : A parameter is invalid. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2924 * ENOMEM : Not enough memory to complete the operation |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2925 */ |
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
|
2926 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
|
2927 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
|
2928 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2929 /* |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2930 * FUNCTION: fd_disp_unregister |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2931 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2932 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2933 * 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
|
2934 * 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
|
2935 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2936 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2937 * 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
|
2938 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2939 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2940 * 0 : The callback is unregistered. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2941 * EINVAL : A parameter is invalid. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2942 */ |
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
|
2943 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
|
2944 |
90
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2945 /* Destroy all handlers */ |
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2946 void fd_disp_unregister_all ( void ); |
2c9444152e4b
Added the dispatch thread code
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
88
diff
changeset
|
2947 |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2948 /* |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2949 * FUNCTION: fd_msg_dispatch |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2950 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2951 * PARAMETERS: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2952 * 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
|
2953 * 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
|
2954 * 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
|
2955 * error_code : Upon return with action == DISP_ACT_ERROR, contains the error (such as "DIAMETER_UNABLE_TO_COMPLY") |
1113
eb4ce68b6e5c
Added calls to remaining hooks
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1107
diff
changeset
|
2956 * drop_reason : if set on return, the message must be freed for this reason. |
eb4ce68b6e5c
Added calls to remaining hooks
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1107
diff
changeset
|
2957 * drop_msg : if drop_reason is set, this points to the message to be freed while *msg is NULL. |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2958 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2959 * DESCRIPTION: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2960 * Call all handlers registered for a given message. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2961 * 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
|
2962 * 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
|
2963 * 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
|
2964 * |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2965 * RETURN VALUE: |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2966 * 0 : Success. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2967 * EINVAL : A parameter is invalid. |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2968 * (other errors) |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2969 */ |
1113
eb4ce68b6e5c
Added calls to remaining hooks
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1107
diff
changeset
|
2970 int fd_msg_dispatch ( struct msg ** msg, struct session * session, enum disp_action *action, char ** error_code, char ** drop_reason, struct msg ** drop_msg ); |
7
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2971 |
e5af94b04946
Added dispatch module and tests
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
6
diff
changeset
|
2972 |
0 | 2973 |
2974 /*============================================================*/ | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2975 /* QUEUES */ |
0 | 2976 /*============================================================*/ |
2977 | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2978 /* Management of FIFO queues of elements */ |
0 | 2979 |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2980 /* A queue is an opaque object */ |
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2981 struct fifo; |
0 | 2982 |
2983 /* | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2984 * FUNCTION: fd_fifo_new |
0 | 2985 * |
2986 * PARAMETERS: | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2987 * 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
|
2988 * 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
|
2989 * blocking operation. Use 0 to disable this maximum. |
0 | 2990 * |
2991 * DESCRIPTION: | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2992 * Create a new empty queue. |
0 | 2993 * |
2994 * RETURN VALUE : | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
2995 * 0 : The queue has been initialized successfully. |
0 | 2996 * EINVAL : The parameter is invalid. |
2997 * ENOMEM : Not enough memory to complete the creation. | |
2998 */ | |
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
|
2999 int fd_fifo_new ( struct fifo ** queue, int max ); |
0 | 3000 |
3001 /* | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3002 * FUNCTION: fd_fifo_del |
0 | 3003 * |
3004 * PARAMETERS: | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3005 * queue : Pointer to an empty queue to delete. |
0 | 3006 * |
3007 * DESCRIPTION: | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3008 * Destroys a queue. This is only possible if no thread is waiting for an element, |
0 | 3009 * and the queue is empty. |
3010 * | |
3011 * RETURN VALUE: | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3012 * 0 : The queue has been destroyed successfully. |
0 | 3013 * EINVAL : The parameter is invalid. |
3014 */ | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3015 int fd_fifo_del ( struct fifo ** queue ); |
0 | 3016 |
3017 /* | |
25
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3018 * FUNCTION: fd_fifo_move |
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3019 * |
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3020 * PARAMETERS: |
653
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
diff
changeset
|
3021 * oldq : Location of a FIFO that is to be emptied. |
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
diff
changeset
|
3022 * newq : A FIFO that will receive the old data. |
25
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3023 * loc_update : if non NULL, a place to store the pointer to new FIFO atomically with the move. |
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3024 * |
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3025 * DESCRIPTION: |
43
2db15632a63d
Added a large part of connection establishment logic, to test
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
34
diff
changeset
|
3026 * Empties a queue and move its content to another one atomically. |
25
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3027 * |
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3028 * RETURN VALUE: |
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3029 * 0 : The queue has been destroyed successfully. |
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3030 * EINVAL : A parameter is invalid. |
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3031 */ |
653
34373acfbc6a
Added sample C++ file in _sample extension
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
649
diff
changeset
|
3032 int fd_fifo_move ( struct fifo * oldq, struct fifo * newq, struct fifo ** loc_update ); |
25
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3033 |
67ca08d5bc48
Completed connection context files
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
24
diff
changeset
|
3034 /* |
1060
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3035 * FUNCTION: fd_fifo_getstats |
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3036 * |
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3037 * PARAMETERS: |
1071
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3038 * queue : The queue from which to retrieve the information. |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3039 * current_count : How many items in the queue at the time of execution. This changes each time an item is pushed or poped. |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3040 * limit_count : The maximum number of items allowed in this queue. This is specified during queue creation. |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3041 * highest_count : The maximum number of items this queue has contained. This enables to see if limit_count count was reached. |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3042 * total_count : the total number of items that went through the queue (already pop'd). Always increasing. |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3043 * total : Cumulated time all items spent in this queue, including blocking time (always growing, use deltas for monitoring) |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3044 * blocking : Cumulated time threads trying to post new items were blocked (queue full). |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3045 * last : For the last element retrieved from the queue, how long it take between posting (including blocking) and poping |
1060
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3046 * |
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3047 * DESCRIPTION: |
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3048 * Retrieve the timing information associated with a queue, for monitoring purpose. |
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3049 * |
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3050 * RETURN VALUE: |
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3051 * 0 : The statistics have been updated. |
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3052 * EINVAL : A parameter is invalid. |
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3053 */ |
1071
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3054 int fd_fifo_getstats( struct fifo * queue, int * current_count, int * limit_count, int * highest_count, long long * total_count, |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3055 struct timespec * total, struct timespec * blocking, struct timespec * last); |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3056 |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3057 /* |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3058 * FUNCTION: fd_fifo_length |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3059 * |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3060 * PARAMETERS: |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3061 * queue : The queue from which to retrieve the number of elements. |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3062 * |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3063 * DESCRIPTION: |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3064 * Retrieve the number of elements in a queue, without error checking. |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3065 * |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3066 * RETURN VALUE: |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3067 * The number of items currently queued. |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3068 */ |
6ca6cadf209c
Implement the fd_stat_getstats function; changed prototype of fd_fifo_length.
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1067
diff
changeset
|
3069 int fd_fifo_length ( struct fifo * queue ); |
1060
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3070 |
13fc3fc9c789
New feature in fd_fifo to get timing statistics
Sebastien Decugis <sdecugis@freediameter.net>
parents:
1052
diff
changeset
|
3071 /* |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3072 * FUNCTION: fd_fifo_setthrhd |
0 | 3073 * |
3074 * PARAMETERS: | |
3075 * queue : The queue for which the thresholds are being set. | |
3076 * data : An opaque pointer that is passed to h_cb and l_cb callbacks. | |
3077 * high : The high-level threshold. If the number of elements in the queue increase to this value, h_cb is called. | |
3078 * h_cb : if not NULL, a callback to call when the queue lengh is bigger than "high". | |
3079 * low : The low-level threshold. Must be < high. | |
3080 * l_cb : If the number of elements decrease to low, this callback is called. | |
3081 * | |
3082 * DESCRIPTION: | |
3083 * This function allows to adjust the number of producer / consumer threads of a queue. | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3084 * If the consumer are slower than the producers, the number of elements in the queue increase. |
0 | 3085 * By setting a "high" value, we allow a callback to be called when this number is too high. |
3086 * The typical use would be to create an additional consumer thread in this callback. | |
3087 * If the queue continues to grow, the callback will be called again when the length is 2 * high, then 3*high, ... N * high | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3088 * (the callback itself should implement a limit on the number of consumers that can be created) |
0 | 3089 * When the queue starts to decrease, and the number of elements go under ((N - 1) * high + low, the l_cb callback is called |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3090 * 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 | 3091 * and so on. |
3092 * | |
3093 * Since there is no destructor for the data pointer, if cleanup operations are required, they should be performed in | |
3094 * l_cb when the length of the queue is becoming < low. | |
3095 * | |
8
3e143f047f78
Backup for the week-end
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parents:
7
diff
changeset
|
3096 * Note that the callbacks are called synchronously, during fd_fifo_post or fd_fifo_get. Their operation should be quick. |
0 | 3097 * |
3098 * RETURN VALUE: | |
3099 * 0 : The thresholds have been set | |
3100 * EINVAL : A parameter is invalid. | |
3101 */ | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3102 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 | 3103 |
3104 /* | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3105 * FUNCTION: fd_fifo_post |
0 | 3106 * |
3107 * PARAMETERS: | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3108 * queue : The queue in which the element must be posted. |
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3109 * item : The element that is put in the queue. |
0 | 3110 * |
3111 * DESCRIPTION: | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3112 * An element is added in a queue. Elements are retrieved from the queue in FIFO order |
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3113 * with the fd_fifo_get, fd_fifo_tryget, or fd_fifo_timedget functions. |
0 | 3114 * |
3115 * RETURN VALUE: | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3116 * 0 : The element is queued. |
0 | 3117 * EINVAL : A parameter is invalid. |
3118 * ENOMEM : Not enough memory to complete the operation. | |
3119 */ | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3120 int fd_fifo_post_int ( struct fifo * queue, void ** item ); |
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3121 #define fd_fifo_post(queue, item) \ |
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3122 fd_fifo_post_int((queue), (void *)(item)) |
0 | 3123 |
3124 /* | |
8
3e143f047f78
Backup for the week-end
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
7
diff
changeset
|
3125 * FUNCTION: fd_fifo_get |
0 | 3126 * |
3127 * PARAMETERS: | |
8
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3128 * queue : The queue from which the first element must be retrieved. |
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3129 * item : On return, the first element of the queue is stored here. |
0 | 3130 * |
3131 * DESCRIPTION: | |
8
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3132 * This function retrieves the first element from a queue. If the queue is empty, the function will block the |
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3133 * thread until a new element is posted to the queue, or until the thread is canceled (in which case the |
0 | 3134 * function does not return). |
3135 * | |
3136 * RETURN VALUE: | |
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3137 * 0 : A new element has been retrieved. |
0 | 3138 * EINVAL : A parameter is invalid. |
3139 */ | |
620
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3140 int fd_fifo_get_int ( struct fifo * queue, void ** item ); |
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3141 #define fd_fifo_get(queue, item) \ |
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3142 fd_fifo_get_int((queue), (void *)(item)) |
0 | 3143 |
3144 /* | |
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3145 * FUNCTION: fd_fifo_tryget |
0 | 3146 * |
3147 * PARAMETERS: | |
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3148 * queue : The queue from which the element must be retrieved. |
124
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3149 * item : On return, the first element of the queue is stored here. |
0 | 3150 * |
3151 * DESCRIPTION: | |
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3152 * This function is similar to fd_fifo_get, except that it will not block if |
0 | 3153 * the queue is empty, but return EWOULDBLOCK instead. |
3154 * | |
3155 * RETURN VALUE: | |
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3156 * 0 : A new element has been retrieved. |
0 | 3157 * EINVAL : A parameter is invalid. |
3158 * EWOULDBLOCK : The queue was empty. | |
3159 */ | |
620
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3160 int fd_fifo_tryget_int ( struct fifo * queue, void ** item ); |
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3161 #define fd_fifo_tryget(queue, item) \ |
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3162 fd_fifo_tryget_int((queue), (void *)(item)) |
0 | 3163 |
3164 /* | |
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3165 * FUNCTION: fd_fifo_timedget |
0 | 3166 * |
3167 * PARAMETERS: | |
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3168 * queue : The queue from which the element must be retrieved. |
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3169 * item : On return, the element is stored here. |
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3170 * abstime : the absolute time until which we allow waiting for an item. |
0 | 3171 * |
3172 * DESCRIPTION: | |
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3173 * This function is similar to fd_fifo_get, except that it will block if the queue is empty |
0 | 3174 * only until the absolute time abstime (see pthread_cond_timedwait for + info). |
3175 * If the queue is still empty when the time expires, the function returns ETIMEDOUT | |
3176 * | |
3177 * RETURN VALUE: | |
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3178 * 0 : A new item has been retrieved. |
0 | 3179 * EINVAL : A parameter is invalid. |
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3180 * ETIMEDOUT : The time out has passed and no item has been received. |
0 | 3181 */ |
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3182 int fd_fifo_timedget_int ( struct fifo * queue, void ** item, const struct timespec *abstime ); |
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3183 #define fd_fifo_timedget(queue, item, abstime) \ |
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3184 fd_fifo_timedget_int((queue), (void *)(item), (abstime)) |
0 | 3185 |
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3186 |
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3187 /* |
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3188 * FUNCTION: fd_fifo_select |
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3189 * |
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3190 * PARAMETERS: |
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3191 * queue : The queue to test. |
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3192 * abstime : the absolute time until which we can block waiting for an item. If NULL, the function returns immediatly. |
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3193 * |
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3194 * DESCRIPTION: |
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3195 * This function is similar to select(), it waits for data to be available in the queue |
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3196 * until the abstime is expired. |
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3197 * Upon function entry, even if abstime is already expired the data availability is tested. |
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3198 * |
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3199 * RETURN VALUE: |
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3200 * 0 : timeout expired without available data. |
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3201 * <0 : An error occurred (e.g., -EINVAL...) |
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3202 * >0 : data is available. The next call to fd_fifo_get will not block. |
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3203 */ |
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3204 int fd_fifo_select ( struct fifo * queue, const struct timespec *abstime ); |
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3205 |
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3206 |
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3207 |
10
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3208 /* Dump a fifo list and optionally its inner elements -- beware of deadlocks! */ |
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3209 typedef DECLARE_FD_DUMP_PROTOTYPE((*fd_fifo_dump_item_cb), void * item); /* This function should be 1 line if possible, or use indent level. Ends with '\n' */ |
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3210 DECLARE_FD_DUMP_PROTOTYPE(fd_fifo_dump, char * name, struct fifo * queue, fd_fifo_dump_item_cb dump_item); |
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3211 |
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3212 #ifdef __cplusplus |
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3213 } |
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3214 #endif |
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3215 |
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3216 #endif /* _LIBFDPROTO_H */ |