1 /* 2 * Copyright (c) 1984, 1985, 1986 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)ns.h 6.11 (Berkeley) 02/14/86 7 */ 8 9 /* 10 * Constants and Structures defined by the Xerox Network Software 11 * per "Internet Transport Protocols", XSIS 028112, December 1981 12 */ 13 14 /* 15 * Protocols 16 */ 17 #define NSPROTO_RI 1 /* Routing Information */ 18 #define NSPROTO_ECHO 2 /* Echo Protocol */ 19 #define NSPROTO_ERROR 3 /* Error Protocol */ 20 #define NSPROTO_PE 4 /* Packet Exchange */ 21 #define NSPROTO_SPP 5 /* Sequenced Packet */ 22 #define NSPROTO_RAW 255 /* Placemarker*/ 23 #define NSPROTO_MAX 256 /* Placemarker*/ 24 25 26 /* 27 * Port/Socket numbers: network standard functions 28 */ 29 30 #define NSPORT_RI 1 /* Routing Information */ 31 #define NSPORT_ECHO 2 /* Echo */ 32 #define NSPORT_RE 3 /* Router Error */ 33 34 /* 35 * Ports < NSPORT_RESERVED are reserved for priveleged 36 * processes (e.g. root). 37 */ 38 #define NSPORT_RESERVED 3000 39 40 /* flags passed to ns_output as last parameter */ 41 42 #define NS_FORWARDING 0x1 /* most of idp header exists */ 43 #define NS_ROUTETOIF 0x10 /* same as SO_DONTROUTE */ 44 #define NS_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */ 45 46 #define NS_MAXHOPS 15 47 48 /* flags passed to get/set socket option */ 49 #define SO_HEADERS_ON_INPUT 1 50 #define SO_HEADERS_ON_OUTPUT 2 51 #define SO_DEFAULT_HEADERS 3 52 #define SO_LAST_HEADER 4 53 #define SO_NSIP_ROUTE 5 54 #define SO_SEQNO 6 55 #define SO_ALL_PACKETS 7 56 #define SO_MTU 8 57 58 59 /* 60 * NS addressing 61 */ 62 union ns_host { 63 u_char c_host[6]; 64 u_short s_host[3]; 65 }; 66 67 union ns_net { 68 u_char c_net[4]; 69 u_short s_net[2]; 70 }; 71 72 union ns_net_u { 73 union ns_net net_e; 74 u_long long_e; 75 }; 76 77 struct ns_addr { 78 union ns_net x_net; 79 union ns_host x_host; 80 u_short x_port; 81 }; 82 83 /* 84 * Socket address, Xerox style 85 */ 86 struct sockaddr_ns { 87 u_short sns_family; 88 struct ns_addr sns_addr; 89 char sns_zero[2]; 90 }; 91 #define sns_port sns_addr.x_port 92 93 #ifdef vax 94 #define ns_netof(a) (*(long *) & ((a).x_net)) /* XXX - not needed */ 95 #endif 96 #define ns_neteqnn(a,b) (((a).s_net[0]==(b).s_net[0]) && \ 97 ((a).s_net[1]==(b).s_net[1])) 98 #define ns_neteq(a,b) ns_neteqnn((a).x_net, (b).x_net) 99 #define satons_addr(sa) (((struct sockaddr_ns *)&(sa))->sns_addr) 100 #define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \ 101 (s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2]) 102 #define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host)) 103 #define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \ 104 ((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0)) 105 106 #if !defined(vax) 107 #if !defined(INET) 108 /* 109 * Macros for number representation conversion. 110 */ 111 #define ntohl(x) (x) 112 #define ntohs(x) (x) 113 #define htonl(x) (x) 114 #define htons(x) (x) 115 #endif 116 #endif 117 118 #ifdef KERNEL 119 extern struct domain nsdomain; 120 extern union ns_host ns_thishost; 121 extern union ns_host ns_zerohost; 122 extern union ns_host ns_broadhost; 123 extern union ns_net ns_zeronet; 124 extern union ns_net ns_broadnet; 125 u_short ns_cksum(); 126 #endif 127