Mercurial > hg > freeDiameter
annotate include/freeDiameter/freeDiameter.h @ 8:3e143f047f78
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| author | Sebastien Decugis <sdecugis@nict.go.jp> |
|---|---|
| date | Fri, 18 Sep 2009 18:54:07 +0900 |
| parents | e5af94b04946 |
| children | c5c99c73c2bf |
| rev | line source |
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| 0 | 1 /********************************************************************************************************* |
| 2 * Software License Agreement (BSD License) * | |
| 3 * Author: Sebastien Decugis <sdecugis@nict.go.jp> * | |
| 4 * * | |
| 5 * Copyright (c) 2009, WIDE Project and NICT * | |
| 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 * | |
| 32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * | |
| 33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * | |
| 34 *********************************************************************************************************/ | |
| 35 | |
| 36 #ifndef _FREEDIAMETER_H | |
| 37 #define _FREEDIAMETER_H | |
| 38 | |
| 39 | |
|
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40 #include <freeDiameter/libfreeDiameter.h> |
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| 42 | |
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43 /* Structure to hold the configuration of the freeDiameter daemon */ |
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44 struct fd_config { |
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45 int eyec; /* Eye catcher: EYEC_CONFIG */ |
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46 char *conf_file; /* Configuration file to parse, default is DEFAULT_CONF_FILE */ |
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47 |
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48 char *diam_id; /* Diameter Identity of the local peer (FQDN -- UTF-8) */ |
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49 size_t diam_id_len; /* length of the previous string */ |
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50 char *diam_realm; /* Diameter realm of the local peer, default to realm part of diam_id */ |
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51 size_t diam_realm_len;/* length of the previous string */ |
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52 |
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53 uint16_t loc_port; /* the local port for legacy Diameter (default: 3868) in host byte order */ |
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54 uint16_t loc_port_tls; /* the local port for Diameter/TLS (default: 3869) in host byte order */ |
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55 uint16_t loc_sctp_str; /* default max number of streams for SCTP associations (def: 30) */ |
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56 struct fd_list loc_endpoints; /* the local endpoints to bind the server to. list of struct fd_endpoint. default is empty (bind all) */ |
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57 struct { |
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58 unsigned no_ip4 : 1; /* disable IP */ |
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59 unsigned no_ip6 : 1; /* disable IPv6 */ |
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60 unsigned no_tcp : 1; /* disable use of TCP */ |
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61 unsigned no_sctp: 1; /* disable the use of SCTP */ |
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62 unsigned pr_tcp : 1; /* prefer TCP over SCTP */ |
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63 unsigned tls_alg: 1; /* TLS algorithm for initiated cnx. 0: separate port. 1: inband-security (old) */ |
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64 unsigned no_fwd : 1; /* the peer does not relay messages (0xffffff app id) */ |
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65 } flags; |
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66 |
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67 unsigned int timer_tc; /* The value in seconds of the default Tc timer */ |
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68 unsigned int timer_tw; /* The value in seconds of the default Tw timer */ |
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69 |
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70 uint32_t or_state_id; /* The value to use in Origin-State-Id, default to random value */ |
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71 struct dictionary *g_dict; /* pointer to the global dictionary */ |
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72 struct fifo *g_fifo_main; /* FIFO queue of events in the daemon main (struct fd_event items) */ |
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73 }; |
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74 |
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75 #define EYEC_CONFIG 0xC011F16 |
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77 /* The pointer to access the global configuration, initalized in main */ |
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78 extern struct fd_config *fd_g_config; |
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79 |
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80 /* Endpoints */ |
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81 struct fd_endpoint { |
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82 struct fd_list chain; /* link in loc_endpoints list */ |
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83 sSS ss; /* the socket information. */ |
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84 }; |
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85 |
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86 /* Events */ |
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87 struct fd_event { |
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88 int code; /* codespace depends on the queue */ |
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89 void *data; |
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90 }; |
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91 |
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92 /* send an event */ |
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93 static __inline__ int fd_event_send(struct fifo *queue, int code, void * data) |
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94 { |
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95 struct fd_event * ev; |
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96 CHECK_MALLOC( ev = malloc(sizeof(struct fd_event)) ); |
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97 ev->code = code; |
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98 ev->data = data; |
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99 CHECK_FCT( fd_fifo_post(queue, &ev) ); |
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100 return 0; |
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101 } |
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102 /* receive an event */ |
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103 static __inline__ int fd_event_get(struct fifo *queue, int *code, void ** data) |
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104 { |
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105 struct fd_event * ev; |
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106 CHECK_FCT( fd_fifo_get(queue, &ev) ); |
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107 if (code) |
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108 *code = ev->code; |
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109 if (data) |
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110 *data = ev->data; |
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111 free(ev); |
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112 return 0; |
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113 } |
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| 115 /***************************************/ | |
| 116 /* Sending a message on the network */ | |
| 117 /***************************************/ | |
| 118 | |
| 119 /* | |
| 120 * FUNCTION: fd_msg_send | |
| 121 * | |
| 122 * PARAMETERS: | |
| 123 * pmsg : Location of the message to be sent on the network (set to NULL on function return to avoid double deletion). | |
| 124 * anscb : A callback to be called when answer is received, if msg is a request (optional) | |
| 125 * anscb_data : opaque data to be passed back to the anscb when it is called. | |
| 126 * | |
| 127 * DESCRIPTION: | |
| 128 * Sends a message on the network. (actually simply queues it in a global queue, to be picked by a daemon's thread) | |
| 129 * For requests, the end-to-end id must be set (see fd_msg_get_eteid / MSGFL_ALLOC_ETEID). | |
| 130 * For answers, the message must be created with function fd_msg_new_answ. | |
| 131 * | |
| 132 * The routing module will handle sending to the correct peer, usually based on the Destination-Realm / Destination-Host AVP. | |
| 133 * | |
| 134 * If the msg is a request, there are two ways of receiving the answer: | |
| 135 * - either having registered a callback in the dispatch module (see disp_register) | |
| 136 * - or provide a callback as parameter here. If such callback is provided, it is called before the dispatch callbacks. | |
| 137 * The prototype for this callback function is: | |
| 138 * void anscb(void * data, struct msg ** answer) | |
| 139 * where: | |
| 140 * data : opaque data that was registered along with the callback. | |
| 141 * answer : location of the pointer to the answer. | |
| 142 * note1: on function return, if *answer is not NULL, the message is passed to the dispatch module for regular callbacks. | |
| 143 * otherwise, the callback must take care of freeing the message (msg_free). | |
| 144 * note2: the opaque data is not freed by the daemon in any case, extensions should ensure clean handling in waaad_ext_fini. | |
| 145 * | |
| 146 * If no callback is registered to handle an answer, the message is discarded and an error is logged. | |
| 147 * | |
| 148 * RETURN VALUE: | |
| 149 * 0 : The message has been queued for sending (sending may fail asynchronously). | |
| 150 * EINVAL : A parameter is invalid (ex: anscb provided but message is not a request). | |
| 151 * ... | |
| 152 */ | |
| 153 int fd_msg_send ( struct msg ** pmsg, void (*anscb)(void *, struct msg **), void * data ); | |
| 154 | |
| 155 /* | |
| 156 * FUNCTION: fd_msg_rescode_set | |
| 157 * | |
| 158 * PARAMETERS: | |
| 159 * msg : A msg object -- it must be an answer. | |
| 160 * dict : dictionary to use for AVP definitions | |
| 161 * rescode : The name of the returned error code (ex: "DIAMETER_INVALID_AVP") | |
| 162 * errormsg : (optional) human-readable error message to put in Error-Message AVP | |
| 163 * optavp : (optional) If provided, the content will be put inside a Failed-AVP | |
| 164 * type_id : 0 => nothing; 1 => adds Origin-Host and Origin-Realm with local info. 2=> adds Error-Reporting-Host. | |
| 165 * | |
| 166 * DESCRIPTION: | |
| 167 * This function adds a Result-Code AVP to a message, and optionally | |
| 168 * - sets the 'E' error flag in the header, | |
| 169 * - adds Error-Message, Error-Reporting-Host and Failed-AVP AVPs. | |
| 170 * | |
| 171 * RETURN VALUE: | |
| 172 * 0 : Operation complete. | |
| 173 * !0 : an error occurred. | |
| 174 */ | |
| 175 int fd_msg_rescode_set( struct msg * msg, struct dictionary * dict, char * rescode, char * errormsg, struct avp * optavp, int type_id ); | |
| 176 | |
| 177 /* The following functions are used to achieve frequent operations on the messages */ | |
| 178 int fd_msg_add_origin ( struct msg * msg, struct dictionary * dict, int osi ); /* Add Origin-Host, Origin-Realm, (if osi) Origin-State-Id AVPS at the end of the message */ | |
| 179 | |
| 180 | |
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182 /***************************************/ |
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183 /* Dispatch module, daemon's part */ |
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184 /***************************************/ |
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185 |
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186 enum { |
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187 DISP_APP_AUTH = 1, |
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188 DISP_APP_ACCT = 2 |
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189 }; |
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190 /* |
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191 * FUNCTION: fd_disp_app_support |
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192 * |
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193 * PARAMETERS: |
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194 * app : The dictionary object corresponding to the Application. |
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195 * vendor : (Optional) the dictionary object of a Vendor to claim support in Vendor-Specific-Application-Id |
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196 * flags : Combination of DISP_APP_* flags. |
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197 * |
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198 * DESCRIPTION: |
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199 * Registers an application to be advertized in CER/CEA exchanges. |
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200 * Messages with an application-id matching a registered value are passed to the dispatch module, |
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201 * while other messages are simply relayed or an error is returned (if local node does not relay) |
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202 * |
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203 * RETURN VALUE: |
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204 * 0 : The application support is registered. |
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205 * EINVAL : A parameter is invalid. |
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206 */ |
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207 int fd_disp_app_support ( struct dict_object * app, struct dict_object * vendor, int flags ); |
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208 |
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209 /* Note: if we want to support capabilities updates, we'll have to add possibility to remove an app as well... */ |
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210 |
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211 |
| 0 | 212 #endif /* _FREEDIAMETER_H */ |