1 /* 2 * Copyright (c) 1984, 1985, 1986, 1987 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)ns.h 7.8 (Berkeley) 02/22/91 8 */ 9 10 /* 11 * Constants and Structures defined by the Xerox Network Software 12 * per "Internet Transport Protocols", XSIS 028112, December 1981 13 */ 14 15 /* 16 * Protocols 17 */ 18 #define NSPROTO_RI 1 /* Routing Information */ 19 #define NSPROTO_ECHO 2 /* Echo Protocol */ 20 #define NSPROTO_ERROR 3 /* Error Protocol */ 21 #define NSPROTO_PE 4 /* Packet Exchange */ 22 #define NSPROTO_SPP 5 /* Sequenced Packet */ 23 #define NSPROTO_RAW 255 /* Placemarker*/ 24 #define NSPROTO_MAX 256 /* Placemarker*/ 25 26 27 /* 28 * Port/Socket numbers: network standard functions 29 */ 30 31 #define NSPORT_RI 1 /* Routing Information */ 32 #define NSPORT_ECHO 2 /* Echo */ 33 #define NSPORT_RE 3 /* Router Error */ 34 35 /* 36 * Ports < NSPORT_RESERVED are reserved for priveleged 37 * processes (e.g. root). 38 */ 39 #define NSPORT_RESERVED 3000 40 41 /* flags passed to ns_output as last parameter */ 42 43 #define NS_FORWARDING 0x1 /* most of idp header exists */ 44 #define NS_ROUTETOIF 0x10 /* same as SO_DONTROUTE */ 45 #define NS_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */ 46 47 #define NS_MAXHOPS 15 48 49 /* flags passed to get/set socket option */ 50 #define SO_HEADERS_ON_INPUT 1 51 #define SO_HEADERS_ON_OUTPUT 2 52 #define SO_DEFAULT_HEADERS 3 53 #define SO_LAST_HEADER 4 54 #define SO_NSIP_ROUTE 5 55 #define SO_SEQNO 6 56 #define SO_ALL_PACKETS 7 57 #define SO_MTU 8 58 59 60 /* 61 * NS addressing 62 */ 63 union ns_host { 64 u_char c_host[6]; 65 u_short s_host[3]; 66 }; 67 68 union ns_net { 69 u_char c_net[4]; 70 u_short s_net[2]; 71 }; 72 73 union ns_net_u { 74 union ns_net net_e; 75 u_long long_e; 76 }; 77 78 struct ns_addr { 79 union ns_net x_net; 80 union ns_host x_host; 81 u_short x_port; 82 }; 83 84 /* 85 * Socket address, Xerox style 86 */ 87 struct sockaddr_ns { 88 u_char sns_len; 89 u_char sns_family; 90 struct ns_addr sns_addr; 91 char sns_zero[2]; 92 }; 93 #define sns_port sns_addr.x_port 94 95 #ifdef vax 96 #define ns_netof(a) (*(long *) & ((a).x_net)) /* XXX - not needed */ 97 #endif 98 #define ns_neteqnn(a,b) (((a).s_net[0]==(b).s_net[0]) && \ 99 ((a).s_net[1]==(b).s_net[1])) 100 #define ns_neteq(a,b) ns_neteqnn((a).x_net, (b).x_net) 101 #define satons_addr(sa) (((struct sockaddr_ns *)&(sa))->sns_addr) 102 #define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \ 103 (s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2]) 104 #define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host)) 105 #define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \ 106 ((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0)) 107 108 #ifdef KERNEL 109 extern struct domain nsdomain; 110 union ns_host ns_thishost; 111 union ns_host ns_zerohost; 112 union ns_host ns_broadhost; 113 union ns_net ns_zeronet; 114 union ns_net ns_broadnet; 115 u_short ns_cksum(); 116 #else 117 118 #include <sys/cdefs.h> 119 120 __BEGIN_DECLS 121 extern struct ns_addr ns_addr __P((const char *)); 122 extern char *ns_ntoa __P((struct ns_addr)); 123 __END_DECLS 124 125 #endif 126