2 * ngIRCd -- The Next Generation IRC Daemon
3 * Copyright (c)2001-2004 by Alexander Barton (alex@barton.de)
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 * Please read the file COPYING, README and AUTHORS for more information.
11 * Rendezvous service registration.
24 static char UNUSED id[] = "$Id: rendezvous.c,v 1.8 2006/05/10 21:24:01 alex Exp $";
32 #ifdef HAVE_MACH_PORT_H
33 #include "mach/port.h"
34 #include "mach/message.h"
37 #ifdef HAVE_DNSSERVICEDISCOVERY_DNSSERVICEDISCOVERY_H
38 #include <DNSServiceDiscovery/DNSServiceDiscovery.h>
41 #ifdef HAVE_RENDEZVOUS_RENDEZVOUS_H
42 #include <rendezvous/rendezvous.h>
49 #include "rendezvous.h"
52 #if defined(HAVE_DNSSERVICEREGISTRATIONCREATE)
54 #elif defined(HAVE_SW_DISCOVERY_INIT)
57 # error "Can't detect Rendezvous API!?"
61 #define MAX_RENDEZVOUS 1000
63 typedef struct _service
65 char Desc[CLIENT_ID_LEN];
67 dns_service_discovery_ref Discovery_Ref;
68 mach_port_t Mach_Port;
75 static SERVICE My_Rendezvous[MAX_RENDEZVOUS];
78 static void Unregister( int Idx );
85 #define MAX_MACH_MSG_SIZE 512
87 static void Registration_Reply_Handler( DNSServiceRegistrationReplyErrorType ErrCode, void *Context );
96 static sw_discovery My_Discovery_Session = NULL;
97 static sw_salt My_Salt;
99 static sw_result HOWL_API Registration_Reply_Handler( sw_discovery Session, sw_discovery_publish_status Status, sw_discovery_oid Id, sw_opaque Extra );
104 GLOBAL void Rendezvous_Init( void )
106 /* Initialize structures */
111 if( sw_discovery_init( &My_Discovery_Session ) != SW_OKAY )
113 Log( LOG_EMERG, "Can't initialize Rendezvous (Howl): sw_discovery_init() failed!" );
114 Log( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME );
118 if( sw_discovery_salt( My_Discovery_Session, &My_Salt ) != SW_OKAY )
120 Log( LOG_EMERG, "Can't initialize Rendezvous (Howl): sw_discovery_salt() failed!" );
121 Log( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME );
126 for( i = 0; i < MAX_RENDEZVOUS; i++ ) My_Rendezvous[i].Desc[0] = '\0';
127 } /* Rendezvous_Init */
130 GLOBAL void Rendezvous_Exit( void )
132 /* Clean up & exit module */
136 for( i = 0; i < MAX_RENDEZVOUS; i++ )
138 if( My_Rendezvous[i].Desc[0] ) Unregister( i );
142 sw_discovery_fina( My_Discovery_Session );
144 } /* Rendezvous_Exit */
148 * Register ZeroConf service
150 GLOBAL bool Rendezvous_Register( char *Name, char *Type, UINT16 Port )
157 /* Search free port structure */
158 for( i = 0; i < MAX_RENDEZVOUS; i++ ) if( ! My_Rendezvous[i].Desc[0] ) break;
159 if( i >= MAX_RENDEZVOUS )
161 Log( LOG_ERR, "Can't register \"%s\" with Rendezvous: limit (%d) reached!", Name, MAX_RENDEZVOUS );
164 strlcpy( My_Rendezvous[i].Desc, Name, sizeof( My_Rendezvous[i].Desc ));
167 /* Register new service */
168 My_Rendezvous[i].Discovery_Ref = DNSServiceRegistrationCreate( Name, Type, "", htonl( Port ), "", Registration_Reply_Handler, &My_Rendezvous[i] );
169 if( ! My_Rendezvous[i].Discovery_Ref )
171 Log( LOG_ERR, "Can't register \"%s\" with Rendezvous: can't register service!", My_Rendezvous[i].Desc );
172 My_Rendezvous[i].Desc[0] = '\0';
176 /* Get and save the corresponding Mach Port */
177 My_Rendezvous[i].Mach_Port = DNSServiceDiscoveryMachPort( My_Rendezvous[i].Discovery_Ref );
178 if( ! My_Rendezvous[i].Mach_Port )
180 Log( LOG_ERR, "Can't register \"%s\" with Rendezvous: got no Mach Port!", My_Rendezvous[i].Desc );
181 /* Here we actually leek a descriptor :-( */
182 My_Rendezvous[i].Discovery_Ref = 0;
183 My_Rendezvous[i].Desc[0] = '\0';
189 if( sw_discovery_publish( My_Discovery_Session, 0, Name, Type, NULL, NULL, Port, NULL, 0, Registration_Reply_Handler, &My_Rendezvous[i], &My_Rendezvous[i].Id ) != SW_OKAY )
191 Log( LOG_ERR, "Can't register \"%s\" with Rendezvous: can't register service!", My_Rendezvous[i].Desc );
192 My_Rendezvous[i].Desc[0] = '\0';
197 Log( LOG_DEBUG, "Rendezvous: Registering \"%s\" ...", My_Rendezvous[i].Desc );
199 } /* Rendezvous_Register */
202 GLOBAL bool Rendezvous_Unregister( char *Name )
204 /* Unregister service from rendezvous */
210 for( i = 0; i < MAX_RENDEZVOUS; i++ )
212 if( strcmp( Name, My_Rendezvous[i].Desc ) == 0 )
220 } /* Rendezvous_Unregister */
223 GLOBAL void Rendezvous_UnregisterListeners( void )
225 /* Unregister all our listening sockets from Rendezvous */
229 for( i = 0; i < MAX_RENDEZVOUS; i++ )
231 if( My_Rendezvous[i].Desc[0] ) Unregister( i );
233 } /* Rendezvous_UnregisterListeners */
236 GLOBAL void Rendezvous_Handler( void )
238 /* Handle all Rendezvous stuff; this function must be called
239 * periodically from the run loop of the main program */
243 char buffer[MAX_MACH_MSG_SIZE];
244 mach_msg_return_t result;
245 mach_msg_header_t *msg;
247 for( i = 0; i < MAX_RENDEZVOUS; i++ )
249 if( ! My_Rendezvous[i].Discovery_Ref ) continue;
251 /* Read message from Mach Port */
252 msg = (mach_msg_header_t *)buffer;
253 result = mach_msg( msg, MACH_RCV_MSG|MACH_RCV_TIMEOUT, 0, MAX_MACH_MSG_SIZE, My_Rendezvous[i].Mach_Port, 1, 0 );
256 if( result == MACH_MSG_SUCCESS ) DNSServiceDiscovery_handleReply( msg );
258 else if( result != MACH_RCV_TIMED_OUT ) Log( LOG_DEBUG, "mach_msg(): %ld", (long)result );
265 sw_salt_step( My_Salt, &msecs );
267 } /* Rendezvous_Handler */
270 static void Unregister( int Idx )
272 /* Unregister service */
275 DNSServiceDiscoveryDeallocate( My_Rendezvous[Idx].Discovery_Ref );
279 if( sw_discovery_cancel( My_Discovery_Session, My_Rendezvous[Idx].Id ) != SW_OKAY )
281 Log( LOG_ERR, "Rendezvous: Failed to unregister \"%s\"!", My_Rendezvous[Idx].Desc );
286 Log( LOG_INFO, "Unregistered \"%s\" from Rendezvous.", My_Rendezvous[Idx].Desc );
287 My_Rendezvous[Idx].Desc[0] = '\0';
291 /* -- Apple API -- */
296 static void Registration_Reply_Handler( DNSServiceRegistrationReplyErrorType ErrCode, void *Context )
298 SERVICE *s = (SERVICE *)Context;
301 if( ErrCode == kDNSServiceDiscoveryNoError )
304 Log( LOG_INFO, "Successfully registered \"%s\" with Rendezvous.", s->Desc );
310 case kDNSServiceDiscoveryAlreadyRegistered:
311 strcpy( txt, "name already registered!" );
313 case kDNSServiceDiscoveryNameConflict:
314 strcpy( txt, "name conflict!" );
317 snprintf(txt, sizeof txt, "error code %ld!",
321 Log( LOG_INFO, "Can't register \"%s\" with Rendezvous: %s", s->Desc, txt );
323 } /* Registration_Reply_Handler */
334 static sw_result HOWL_API Registration_Reply_Handler( sw_discovery Session, sw_discovery_publish_status Status, UNUSED sw_discovery_oid Id, sw_opaque Extra )
336 SERVICE *s = (SERVICE *)Extra;
339 assert( Session == My_Discovery_Session );
340 assert( Extra != NULL );
342 if( Status == SW_DISCOVERY_PUBLISH_STARTED || Status == SW_DISCOVERY_PUBLISH_STOPPED )
345 Log( LOG_INFO, "Successfully registered \"%s\" with Rendezvous.", s->Desc );
351 case SW_DISCOVERY_PUBLISH_NAME_COLLISION:
352 strcpy( txt, "name conflict!" );
355 snprintf(txt, sizeof txt, "error code %ld!",
359 Log( LOG_INFO, "Can't register \"%s\" with Rendezvous: %s", s->Desc, txt );
363 } /* Registration_Reply_Handler */
369 #endif /* ZEROCONF */