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NetBSD/usr.sbin/tcpdump/decnet.h

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Clean up merge, port to NetBSD, and add NetBSD RCS tags.
1995-03-06 22:09:42 +03:00
/* $NetBSD: decnet.h,v 1.2 1995/03/06 19:09:58 mycroft Exp $ */
Import LBL tcpdump, version 3.0 patch level 1.
1995-03-06 14:55:03 +03:00
/*
* Copyright (c) 1992, 1994
* 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.
*
* @(#) Header: decnet.h,v 1.3 94/06/14 20:11:44 leres 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 /* initialisation 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 initialisation 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 /* initialisation 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; /* initialisation 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 /* unrecognised node name */
#define UC_REMOTESHUT 3 /* remote node shutting down */
#define UC_NOSUCHOBJ 4 /* unrecognised 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 */
};
/*
* Like the macros in extract.h, except that since DECNET is a little-endian
* protocol, the BYTEORDER sense is reversed.
*/
#define EXTRACT_8BITS(p) (*(p))
#if BYTEORDER == BIG_ENDIAN
#define EXTRACT_16BITS(p)\
((u_short)\
(*((u_char *)p+1)<<8|\
*((u_char *)p+0)<<0))
#define EXTRACT_32BITS(p)\
(*((u_char *)p+3)<<24|\
*((u_char *)p+2)<<16|\
*((u_char *)p+1)<<8|\
*((u_char *)p+0)<<0)
#else
#define EXTRACT_16BITS(p)\
((u_short)\
(*((u_char *)p+0)<<8|\
*((u_char *)p+1)<<0))
#define EXTRACT_32BITS(p)\
(*((u_char *)p+0)<<24|\
*((u_char *)p+1)<<16|\
*((u_char *)p+2)<<8|\
*((u_char *)p+3)<<0)
#endif