/* * Copyright (c) 1984, 1985, 1986 Regents of the University of California. * All rights reserved. The Berkeley software License Agreement * specifies the terms and conditions for redistribution. * * @(#)ns.h 7.1 (Berkeley) 6/5/86 */ /* * Constants and Structures defined by the Xerox Network Software * per "Internet Transport Protocols", XSIS 028112, December 1981 */ /* * Protocols */ #define NSPROTO_RI 1 /* Routing Information */ #define NSPROTO_ECHO 2 /* Echo Protocol */ #define NSPROTO_ERROR 3 /* Error Protocol */ #define NSPROTO_PE 4 /* Packet Exchange */ #define NSPROTO_SPP 5 /* Sequenced Packet */ #define NSPROTO_RAW 255 /* Placemarker*/ #define NSPROTO_MAX 256 /* Placemarker*/ /* * Port/Socket numbers: network standard functions */ #define NSPORT_RI 1 /* Routing Information */ #define NSPORT_ECHO 2 /* Echo */ #define NSPORT_RE 3 /* Router Error */ /* * Ports < NSPORT_RESERVED are reserved for priveleged * processes (e.g. root). */ #define NSPORT_RESERVED 3000 /* flags passed to ns_output as last parameter */ #define NS_FORWARDING 0x1 /* most of idp header exists */ #define NS_ROUTETOIF 0x10 /* same as SO_DONTROUTE */ #define NS_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */ #define NS_MAXHOPS 15 /* flags passed to get/set socket option */ #define SO_HEADERS_ON_INPUT 1 #define SO_HEADERS_ON_OUTPUT 2 #define SO_DEFAULT_HEADERS 3 #define SO_LAST_HEADER 4 #define SO_NSIP_ROUTE 5 #define SO_SEQNO 6 #define SO_ALL_PACKETS 7 #define SO_MTU 8 /* * NS addressing */ union ns_host { u_char c_host[6]; u_short s_host[3]; }; union ns_net { u_char c_net[4]; u_short s_net[2]; }; union ns_net_u { union ns_net net_e; u_long long_e; }; struct ns_addr { union ns_net x_net; union ns_host x_host; u_short x_port; }; /* * Socket address, Xerox style */ struct sockaddr_ns { u_short sns_family; struct ns_addr sns_addr; char sns_zero[2]; }; #define sns_port sns_addr.x_port #ifdef vax #define ns_netof(a) (*(long *) & ((a).x_net)) /* XXX - not needed */ #endif #define ns_neteqnn(a,b) (((a).s_net[0]==(b).s_net[0]) && \ ((a).s_net[1]==(b).s_net[1])) #define ns_neteq(a,b) ns_neteqnn((a).x_net, (b).x_net) #define satons_addr(sa) (((struct sockaddr_ns *)&(sa))->sns_addr) #define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \ (s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2]) #define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host)) #define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \ ((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0)) #if !defined(vax) && !defined(ntohl) && !defined(lint) /* * Macros for number representation conversion. */ #define ntohl(x) (x) #define ntohs(x) (x) #define htonl(x) (x) #define htons(x) (x) #endif #if !defined(ntohl) && (defined(vax) || defined(lint)) u_short ntohs(), htons(); u_long ntohl(), htonl(); #endif #ifdef KERNEL extern struct domain nsdomain; union ns_host ns_thishost; union ns_host ns_zerohost; union ns_host ns_broadhost; union ns_net ns_zeronet; union ns_net ns_broadnet; u_short ns_cksum(); #endif