/* $OpenBSD: decnet.h,v 1.7 2007/10/07 16:41:05 deraadt Exp $ */ /* * Copyright (c) 1992, 1994, 1996 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University nor the names of its contributors may be used to endorse * or promote products derived from this software without specific prior * written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * @(#) $Id: decnet.h,v 1.7 2007/10/07 16:41:05 deraadt Exp $ (LBL) */ typedef unsigned char byte[1]; /* single byte field */ typedef unsigned char word[2]; /* 2 byte field */ typedef unsigned char longword[4]; /* 4 bytes field */ /* * Definitions for DECNET Phase IV protocol headers */ union etheraddress { unsigned char dne_addr[6]; /* full ethernet address */ struct { unsigned char dne_hiord[4]; /* DECnet HIORD prefix */ unsigned char dne_nodeaddr[2]; /* DECnet node address */ } dne_remote; }; typedef union etheraddress etheraddr; /* Ethernet address */ #define HIORD 0x000400aa /* high 32-bits of address (swapped) */ #define AREAMASK 0176000 /* mask for area field */ #define AREASHIFT 10 /* bit-offset for area field */ #define NODEMASK 01777 /* mask for node address field */ #define DN_MAXADDL 20 /* max size of DECnet address */ struct dn_naddr { unsigned short a_len; /* length of address */ unsigned char a_addr[DN_MAXADDL]; /* address as bytes */ }; /* * Define long and short header formats. */ struct shorthdr { byte sh_flags; /* route flags */ word sh_dst; /* destination node address */ word sh_src; /* source node address */ byte sh_visits; /* visit count */ }; struct longhdr { byte lg_flags; /* route flags */ byte lg_darea; /* destination area (reserved) */ byte lg_dsarea; /* destination subarea (reserved) */ etheraddr lg_dst; /* destination id */ byte lg_sarea; /* source area (reserved) */ byte lg_ssarea; /* source subarea (reserved) */ etheraddr lg_src; /* source id */ byte lg_nextl2; /* next level 2 router (reserved) */ byte lg_visits; /* visit count */ byte lg_service; /* service class (reserved) */ byte lg_pt; /* protocol type (reserved) */ }; union routehdr { struct shorthdr rh_short; /* short route header */ struct longhdr rh_long; /* long route header */ }; /* * Define the values of various fields in the protocol messages. * * 1. Data packet formats. */ #define RMF_MASK 7 /* mask for message type */ #define RMF_SHORT 2 /* short message format */ #define RMF_LONG 6 /* long message format */ #ifndef RMF_RQR #define RMF_RQR 010 /* request return to sender */ #define RMF_RTS 020 /* returning to sender */ #define RMF_IE 040 /* intra-ethernet packet */ #endif /* RMR_RQR */ #define RMF_FVER 0100 /* future version flag */ #define RMF_PAD 0200 /* pad field */ #define RMF_PADMASK 0177 /* pad field mask */ #define VIS_MASK 077 /* visit field mask */ /* * 2. Control packet formats. */ #define RMF_CTLMASK 017 /* mask for message type */ #define RMF_CTLMSG 01 /* control message indicator */ #define RMF_INIT 01 /* initialization message */ #define RMF_VER 03 /* verification message */ #define RMF_TEST 05 /* hello and test message */ #define RMF_L1ROUT 07 /* level 1 routing message */ #define RMF_L2ROUT 011 /* level 2 routing message */ #define RMF_RHELLO 013 /* router hello message */ #define RMF_EHELLO 015 /* endnode hello message */ #define TI_L2ROUT 01 /* level 2 router */ #define TI_L1ROUT 02 /* level 1 router */ #define TI_ENDNODE 03 /* endnode */ #define TI_VERIF 04 /* verification required */ #define TI_BLOCK 010 /* blocking requested */ #define VE_VERS 2 /* version number (2) */ #define VE_ECO 0 /* ECO number */ #define VE_UECO 0 /* user ECO number (0) */ #define P3_VERS 1 /* phase III version number (1) */ #define P3_ECO 3 /* ECO number (3) */ #define P3_UECO 0 /* user ECO number (0) */ #define II_L2ROUT 01 /* level 2 router */ #define II_L1ROUT 02 /* level 1 router */ #define II_ENDNODE 03 /* endnode */ #define II_VERIF 04 /* verification required */ #define II_NOMCAST 040 /* no multicast traffic accepted */ #define II_BLOCK 0100 /* blocking requested */ #define II_TYPEMASK 03 /* mask for node type */ #define TESTDATA 0252 /* test data bytes */ #define TESTLEN 1 /* length of transmitted test data */ /* * Define control message formats. */ struct initmsgIII /* phase III initialization message */ { byte inIII_flags; /* route flags */ word inIII_src; /* source node address */ byte inIII_info; /* routing layer information */ word inIII_blksize; /* maximum data link block size */ byte inIII_vers; /* version number */ byte inIII_eco; /* ECO number */ byte inIII_ueco; /* user ECO number */ byte inIII_rsvd; /* reserved image field */ }; struct initmsg /* initialization message */ { byte in_flags; /* route flags */ word in_src; /* source node address */ byte in_info; /* routing layer information */ word in_blksize; /* maximum data link block size */ byte in_vers; /* version number */ byte in_eco; /* ECO number */ byte in_ueco; /* user ECO number */ word in_hello; /* hello timer */ byte in_rsvd; /* reserved image field */ }; struct verifmsg /* verification message */ { byte ve_flags; /* route flags */ word ve_src; /* source node address */ byte ve_fcnval; /* function value image field */ }; struct testmsg /* hello and test message */ { byte te_flags; /* route flags */ word te_src; /* source node address */ byte te_data; /* test data image field */ }; struct l1rout /* level 1 routing message */ { byte r1_flags; /* route flags */ word r1_src; /* source node address */ byte r1_rsvd; /* reserved field */ }; struct l2rout /* level 2 routing message */ { byte r2_flags; /* route flags */ word r2_src; /* source node address */ byte r2_rsvd; /* reserved field */ }; struct rhellomsg /* router hello message */ { byte rh_flags; /* route flags */ byte rh_vers; /* version number */ byte rh_eco; /* ECO number */ byte rh_ueco; /* user ECO number */ etheraddr rh_src; /* source id */ byte rh_info; /* routing layer information */ word rh_blksize; /* maximum data link block size */ byte rh_priority; /* router's priority */ byte rh_area; /* reserved */ word rh_hello; /* hello timer */ byte rh_mpd; /* reserved */ }; struct ehellomsg /* endnode hello message */ { byte eh_flags; /* route flags */ byte eh_vers; /* version number */ byte eh_eco; /* ECO number */ byte eh_ueco; /* user ECO number */ etheraddr eh_src; /* source id */ byte eh_info; /* routing layer information */ word eh_blksize; /* maximum data link block size */ byte eh_area; /* area (reserved) */ byte eh_seed[8]; /* verification seed */ etheraddr eh_router; /* designated router */ word eh_hello; /* hello timer */ byte eh_mpd; /* (reserved) */ byte eh_data; /* test data image field */ }; union controlmsg { struct initmsg cm_init; /* initialization message */ struct verifmsg cm_ver; /* verification message */ struct testmsg cm_test; /* hello and test message */ struct l1rout cm_l1rou; /* level 1 routing message */ struct l2rout cm_l2rout; /* level 2 routing message */ struct rhellomsg cm_rhello; /* router hello message */ struct ehellomsg cm_ehello; /* endnode hello message */ }; /* Macros for decoding routing-info fields */ #define RI_COST(x) ((x)&0777) #define RI_HOPS(x) (((x)>>10)&037) /* * NSP protocol fields and values. */ #define NSP_TYPEMASK 014 /* mask to isolate type code */ #define NSP_SUBMASK 0160 /* mask to isolate subtype code */ #define NSP_SUBSHFT 4 /* shift to move subtype code */ #define MFT_DATA 0 /* data message */ #define MFT_ACK 04 /* acknowledgement message */ #define MFT_CTL 010 /* control message */ #define MFS_ILS 020 /* data or I/LS indicator */ #define MFS_BOM 040 /* beginning of message (data) */ #define MFS_MOM 0 /* middle of message (data) */ #define MFS_EOM 0100 /* end of message (data) */ #define MFS_INT 040 /* interrupt message */ #define MFS_DACK 0 /* data acknowledgement */ #define MFS_IACK 020 /* I/LS acknowledgement */ #define MFS_CACK 040 /* connect acknowledgement */ #define MFS_NOP 0 /* no operation */ #define MFS_CI 020 /* connect initiate */ #define MFS_CC 040 /* connect confirm */ #define MFS_DI 060 /* disconnect initiate */ #define MFS_DC 0100 /* disconnect confirm */ #define MFS_RCI 0140 /* retransmitted connect initiate */ #define SGQ_ACK 0100000 /* ack */ #define SGQ_NAK 0110000 /* negative ack */ #define SGQ_OACK 0120000 /* other channel ack */ #define SGQ_ONAK 0130000 /* other channel negative ack */ #define SGQ_MASK 07777 /* mask to isolate seq # */ #define SGQ_OTHER 020000 /* other channel qualifier */ #define SGQ_DELAY 010000 /* ack delay flag */ #define SGQ_EOM 0100000 /* pseudo flag for end-of-message */ #define LSM_MASK 03 /* mask for modifier field */ #define LSM_NOCHANGE 0 /* no change */ #define LSM_DONOTSEND 1 /* do not send data */ #define LSM_SEND 2 /* send data */ #define LSI_MASK 014 /* mask for interpretation field */ #define LSI_DATA 0 /* data segment or message count */ #define LSI_INTR 4 /* interrupt request count */ #define LSI_INTM 0377 /* funny marker for int. message */ #define COS_MASK 014 /* mask for flow control field */ #define COS_NONE 0 /* no flow control */ #define COS_SEGMENT 04 /* segment flow control */ #define COS_MESSAGE 010 /* message flow control */ #define COS_CRYPTSER 020 /* cryptographic services requested */ #define COS_DEFAULT 1 /* default value for field */ #define COI_MASK 3 /* mask for version field */ #define COI_32 0 /* version 3.2 */ #define COI_31 1 /* version 3.1 */ #define COI_40 2 /* version 4.0 */ #define COI_41 3 /* version 4.1 */ #define MNU_MASK 140 /* mask for session control version */ #define MNU_10 000 /* session V1.0 */ #define MNU_20 040 /* session V2.0 */ #define MNU_ACCESS 1 /* access control present */ #define MNU_USRDATA 2 /* user data field present */ #define MNU_INVKPROXY 4 /* invoke proxy field present */ #define MNU_UICPROXY 8 /* use uic-based proxy */ #define DC_NORESOURCES 1 /* no resource reason code */ #define DC_NOLINK 41 /* no link terminate reason code */ #define DC_COMPLETE 42 /* disconnect complete reason code */ #define DI_NOERROR 0 /* user disconnect */ #define DI_SHUT 3 /* node is shutting down */ #define DI_NOUSER 4 /* destination end user does not exist */ #define DI_INVDEST 5 /* invalid end user destination */ #define DI_REMRESRC 6 /* insufficient remote resources */ #define DI_TPA 8 /* third party abort */ #define DI_PROTOCOL 7 /* protocol error discovered */ #define DI_ABORT 9 /* user abort */ #define DI_LOCALRESRC 32 /* insufficient local resources */ #define DI_REMUSERRESRC 33 /* insufficient remote user resources */ #define DI_BADACCESS 34 /* bad access control information */ #define DI_BADACCNT 36 /* bad ACCOUNT information */ #define DI_CONNECTABORT 38 /* connect request cancelled */ #define DI_TIMEDOUT 38 /* remote node or user crashed */ #define DI_UNREACHABLE 39 /* local timers expired due to ... */ #define DI_BADIMAGE 43 /* bad image data in connect */ #define DI_SERVMISMATCH 54 /* cryptographic service mismatch */ #define UC_OBJREJECT 0 /* object rejected connect */ #define UC_USERDISCONNECT 0 /* user disconnect */ #define UC_RESOURCES 1 /* insufficient resources (local or remote) */ #define UC_NOSUCHNODE 2 /* unrecognized node name */ #define UC_REMOTESHUT 3 /* remote node shutting down */ #define UC_NOSUCHOBJ 4 /* unrecognized object */ #define UC_INVOBJFORMAT 5 /* invalid object name format */ #define UC_OBJTOOBUSY 6 /* object too busy */ #define UC_NETWORKABORT 8 /* network abort */ #define UC_USERABORT 9 /* user abort */ #define UC_INVNODEFORMAT 10 /* invalid node name format */ #define UC_LOCALSHUT 11 /* local node shutting down */ #define UC_ACCESSREJECT 34 /* invalid access control information */ #define UC_NORESPONSE 38 /* no response from object */ #define UC_UNREACHABLE 39 /* node unreachable */ /* * NSP message formats. */ struct nsphdr /* general nsp header */ { byte nh_flags; /* message flags */ word nh_dst; /* destination link address */ word nh_src; /* source link address */ }; struct seghdr /* data segment header */ { byte sh_flags; /* message flags */ word sh_dst; /* destination link address */ word sh_src; /* source link address */ word sh_seq[3]; /* sequence numbers */ }; struct minseghdr /* minimum data segment header */ { byte ms_flags; /* message flags */ word ms_dst; /* destination link address */ word ms_src; /* source link address */ word ms_seq; /* sequence number */ }; struct lsmsg /* link service message (after hdr) */ { byte ls_lsflags; /* link service flags */ byte ls_fcval; /* flow control value */ }; struct ackmsg /* acknowledgement message */ { byte ak_flags; /* message flags */ word ak_dst; /* destination link address */ word ak_src; /* source link address */ word ak_acknum[2]; /* acknowledgement numbers */ }; struct minackmsg /* minimum acknowledgement message */ { byte mk_flags; /* message flags */ word mk_dst; /* destination link address */ word mk_src; /* source link address */ word mk_acknum; /* acknowledgement number */ }; struct ciackmsg /* connect acknowledgement message */ { byte ck_flags; /* message flags */ word ck_dst; /* destination link address */ }; struct cimsg /* connect initiate message */ { byte ci_flags; /* message flags */ word ci_dst; /* destination link address (0) */ word ci_src; /* source link address */ byte ci_services; /* requested services */ byte ci_info; /* information */ word ci_segsize; /* maximum segment size */ }; struct ccmsg /* connect confirm message */ { byte cc_flags; /* message flags */ word cc_dst; /* destination link address */ word cc_src; /* source link address */ byte cc_services; /* requested services */ byte cc_info; /* information */ word cc_segsize; /* maximum segment size */ byte cc_optlen; /* optional data length */ }; struct cnmsg /* generic connect message */ { byte cn_flags; /* message flags */ word cn_dst; /* destination link address */ word cn_src; /* source link address */ byte cn_services; /* requested services */ byte cn_info; /* information */ word cn_segsize; /* maximum segment size */ }; struct dimsg /* disconnect initiate message */ { byte di_flags; /* message flags */ word di_dst; /* destination link address */ word di_src; /* source link address */ word di_reason; /* reason code */ byte di_optlen; /* optional data length */ }; struct dcmsg /* disconnect confirm message */ { byte dc_flags; /* message flags */ word dc_dst; /* destination link address */ word dc_src; /* source link address */ word dc_reason; /* reason code */ };
