1 /* -*- Mode: C; tab-width: 4 -*- 2 * 3 * Copyright (c) 2002-2004 Apple Computer, Inc. All rights reserved. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 17 Change History (most recent first): 18 19 Log: mDNSPosix.h,v $ 20 Revision 1.19 2007/04/22 20:15:46 cheshire 21 Add missing parameters for mDNSPosixEventCallback 22 23 Revision 1.18 2006/08/14 23:24:47 cheshire 24 Re-licensed mDNSResponder daemon source code under Apache License, Version 2.0 25 26 Revision 1.17 2005/02/04 00:39:59 cheshire 27 Move ParseDNSServers() from PosixDaemon.c to mDNSPosix.c so all Posix client layers can use it 28 29 Revision 1.16 2004/11/30 22:37:01 cheshire 30 Update copyright dates and add "Mode: C; tab-width: 4" headers 31 32 Revision 1.15 2004/02/06 01:19:51 cheshire 33 Conditionally exclude IPv6 code unless HAVE_IPV6 is set 34 35 Revision 1.14 2004/01/28 21:12:15 cheshire 36 Reconcile mDNSIPv6Support & HAVE_IPV6 into a single flag (HAVE_IPV6) 37 38 Revision 1.13 2004/01/24 05:12:03 cheshire 39 <rdar://problem/3534352>: Need separate socket for issuing unicast queries 40 41 Revision 1.12 2004/01/23 21:37:08 cheshire 42 For consistency, rename multicastSocket to multicastSocket4, and multicastSocketv6 to multicastSocket6 43 44 Revision 1.11 2003/12/11 03:03:51 rpantos 45 Clean up mDNSPosix so that it builds on OS X again. 46 47 Revision 1.10 2003/12/08 20:47:02 rpantos 48 Add support for mDNSResponder on Linux. 49 50 Revision 1.9 2003/10/30 19:25:19 cheshire 51 Fix warning on certain compilers 52 53 Revision 1.8 2003/08/12 19:56:26 cheshire 54 Update to APSL 2.0 55 56 Revision 1.7 2003/07/02 21:19:59 cheshire 57 <rdar://problem/3313413> Update copyright notices, etc., in source code comments 58 59 Revision 1.6 2003/03/13 03:46:21 cheshire 60 Fixes to make the code build on Linux 61 62 Revision 1.5 2003/03/08 00:35:56 cheshire 63 Switched to using new "mDNS_Execute" model (see "mDNSCore/Implementer Notes.txt") 64 65 Revision 1.4 2002/12/23 22:13:31 jgraessl 66 67 Reviewed by: Stuart Cheshire 68 Initial IPv6 support for mDNSResponder. 69 70 Revision 1.3 2002/09/21 20:44:53 zarzycki 71 Added APSL info 72 73 Revision 1.2 2002/09/19 04:20:44 cheshire 74 Remove high-ascii characters that confuse some systems 75 76 Revision 1.1 2002/09/17 06:24:34 cheshire 77 First checkin 78 79 */ 80 81 #ifndef __mDNSPlatformPosix_h 82 #define __mDNSPlatformPosix_h 83 84 #include <signal.h> 85 #include <sys/time.h> 86 87 #ifdef __cplusplus 88 extern "C" { 89 #endif 90 91 // PosixNetworkInterface is a record extension of the core NetworkInterfaceInfo 92 // type that supports extra fields needed by the Posix platform. 93 // 94 // IMPORTANT: coreIntf must be the first field in the structure because 95 // we cast between pointers to the two different types regularly. 96 97 typedef struct PosixNetworkInterface PosixNetworkInterface; 98 99 struct PosixNetworkInterface 100 { 101 NetworkInterfaceInfo coreIntf; 102 const char * intfName; 103 PosixNetworkInterface * aliasIntf; 104 int index; 105 int multicastSocket4; 106 #if HAVE_IPV6 107 int multicastSocket6; 108 #endif 109 }; 110 111 // This is a global because debugf_() needs to be able to check its value 112 extern int gMDNSPlatformPosixVerboseLevel; 113 114 struct mDNS_PlatformSupport_struct 115 { 116 int unicastSocket4; 117 #if HAVE_IPV6 118 int unicastSocket6; 119 #endif 120 }; 121 122 #define uDNS_SERVERS_FILE "/etc/resolv.conf" 123 extern int ParseDNSServers(mDNS *m, const char *filePath); 124 extern mStatus mDNSPlatformPosixRefreshInterfaceList(mDNS *const m); 125 // See comment in implementation. 126 127 // Call mDNSPosixGetFDSet before calling select(), to update the parameters 128 // as may be necessary to meet the needs of the mDNSCore code. 129 // The timeout pointer MUST NOT be NULL. 130 // Set timeout->tv_sec to 0x3FFFFFFF if you want to have effectively no timeout 131 // After calling mDNSPosixGetFDSet(), call select(nfds, &readfds, NULL, NULL, &timeout); as usual 132 // After select() returns, call mDNSPosixProcessFDSet() to let mDNSCore do its work 133 extern void mDNSPosixGetFDSet(mDNS *m, int *nfds, fd_set *readfds, struct timeval *timeout); 134 extern void mDNSPosixProcessFDSet(mDNS *const m, fd_set *readfds); 135 136 typedef void (*mDNSPosixEventCallback)(int fd, short filter, void *context); 137 138 extern mStatus mDNSPosixAddFDToEventLoop( int fd, mDNSPosixEventCallback callback, void *context); 139 extern mStatus mDNSPosixRemoveFDFromEventLoop( int fd); 140 extern mStatus mDNSPosixListenForSignalInEventLoop( int signum); 141 extern mStatus mDNSPosixIgnoreSignalInEventLoop( int signum); 142 extern mStatus mDNSPosixRunEventLoopOnce( mDNS *m, const struct timeval *pTimeout, sigset_t *pSignalsReceived, mDNSBool *pDataDispatched); 143 144 #ifdef __cplusplus 145 } 146 #endif 147 148 #endif 149