1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 /* 30 * Portions of this source code were derived from Berkeley 4.3 BSD 31 * under license from the Regents of the University of California. 32 */ 33 34 #ifndef _SYS_SOCKET_IMPL_H 35 #define _SYS_SOCKET_IMPL_H 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 #ifndef _SA_FAMILY_T 42 #define _SA_FAMILY_T 43 typedef uint16_t sa_family_t; 44 #endif 45 46 /* 47 * Structure used by kernel to store most 48 * addresses. 49 */ 50 struct sockaddr { 51 sa_family_t sa_family; /* address family */ 52 char sa_data[14]; /* up to 14 bytes of direct address */ 53 }; 54 55 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 56 #include <sys/un.h> 57 #include <net/if_dl.h> 58 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ 59 60 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) 61 /* 62 * sockaddr_storage: 63 * Common superset of at least AF_INET, AF_INET6 and AF_LINK sockaddr 64 * structures. Has sufficient size and alignment for those sockaddrs. 65 */ 66 67 /* 68 * Desired maximum size, alignment size and related types. 69 */ 70 #define _SS_MAXSIZE 256 /* Implementation specific max size */ 71 72 /* 73 * To represent desired sockaddr max alignment for platform, a 74 * type is chosen which may depend on implementation platform architecture. 75 * Type chosen based on alignment size restrictions from <sys/isa_defs.h>. 76 * We desire to force up to (but no more than) 64-bit (8 byte) alignment, 77 * on platforms where it is possible to do so. (e.g not possible on ia32). 78 * For all currently supported platforms by our implementation 79 * in <sys/isa_defs.h>, (i.e. sparc, sparcv9, ia32, ia64) 80 * type "double" is suitable for that intent. 81 * 82 * Note: Type "double" is chosen over the more obvious integer type int64_t. 83 * int64_t is not a valid type for strict ANSI/ISO C compilation on ILP32. 84 */ 85 typedef double sockaddr_maxalign_t; 86 87 #define _SS_ALIGNSIZE (sizeof (sockaddr_maxalign_t)) 88 89 /* 90 * Definitions used for sockaddr_storage structure paddings design. 91 */ 92 #define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof (sa_family_t)) 93 #define _SS_PAD2SIZE (_SS_MAXSIZE - (sizeof (sa_family_t)+ \ 94 _SS_PAD1SIZE + _SS_ALIGNSIZE)) 95 96 struct sockaddr_storage { 97 sa_family_t ss_family; /* Address family */ 98 /* Following fields are implementation specific */ 99 char _ss_pad1[_SS_PAD1SIZE]; 100 sockaddr_maxalign_t _ss_align; 101 char _ss_pad2[_SS_PAD2SIZE]; 102 }; 103 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */ 104 105 /* 106 * To be compatible with the Linux interfaces used, this structure is 107 * placed in socket_impl.h so that an include for <sys/socket.h> will 108 * pickup this structure. This structure is for use with PF_PACKET 109 * sockets. 110 */ 111 struct sockaddr_ll { 112 uint16_t sll_family; 113 uint16_t sll_protocol; 114 int32_t sll_ifindex; 115 uint16_t sll_hatype; 116 uint8_t sll_pkttype; 117 uint8_t sll_halen; 118 uint8_t sll_addr[8]; 119 }; 120 121 #define LINUX_SLL_HOST 0 122 #define LINUX_SLL_BROADCAST 1 123 #define LINUX_SLL_MULTICAST 2 124 #define LINUX_SLL_OTHERHOST 3 125 #define LINUX_SLL_OUTGOING 4 126 127 #ifdef __cplusplus 128 } 129 #endif 130 131 #endif /* _SYS_SOCKET_IMPL_H */ 132