[dragonfly.git] / contrib / tcpdump / decnet.h

/*
 * 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.
 *
 * @(#) $Header: /tcpdump/master/tcpdump/decnet.h,v 1.11 2002/12/11 07:13:50 guy Exp $ (LBL)
 */

#ifndef WIN32
typedef u_int8_t byte[1];		/* single byte field */
#else
/*
 * the keyword 'byte' generates conflicts in Windows
 */
typedef unsigned char Byte[1];		/* single byte field */
#define byte Byte
#endif /* WIN32 */
typedef u_int8_t word[2];		/* 2 byte field */
typedef u_int8_t longword[4];		/* 4 bytes field */

/*
 * Definitions for DECNET Phase IV protocol headers
 */
union etheraddress {
	u_int8_t   dne_addr[6];		/* full ethernet address */
	struct {
		u_int8_t dne_hiord[4];	/* DECnet HIORD prefix */
		u_int8_t 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 {
	u_int16_t	a_len;		/* length of address */
	u_int8_t 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)
\f
/*
 * 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 */
  };
Commit	Line	Data
c8cf0f94 PA	1	/*
	2	* Copyright (c) 1992, 1994, 1996
	3	* The Regents of the University of California. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that: (1) source code distributions
	7	* retain the above copyright notice and this paragraph in its entirety, (2)
	8	* distributions including binary code include the above copyright notice and
	9	* this paragraph in its entirety in the documentation or other materials
	10	* provided with the distribution, and (3) all advertising materials mentioning
	11	* features or use of this software display the following acknowledgement:
	12	* ``This product includes software developed by the University of California,
	13	* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
	14	* the University nor the names of its contributors may be used to endorse
	15	* or promote products derived from this software without specific prior
	16	* written permission.
	17	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
	18	* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
	19	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
	20	*
	21	* @(#) $Header: /tcpdump/master/tcpdump/decnet.h,v 1.11 2002/12/11 07:13:50 guy Exp $ (LBL)
	22	*/
	23
	24	#ifndef WIN32
	25	typedef u_int8_t byte[1]; /* single byte field */
	26	#else
	27	/*
	28	* the keyword 'byte' generates conflicts in Windows
	29	*/
	30	typedef unsigned char Byte[1]; /* single byte field */
	31	#define byte Byte
	32	#endif /* WIN32 */
	33	typedef u_int8_t word[2]; /* 2 byte field */
	34	typedef u_int8_t longword[4]; /* 4 bytes field */
	35
	36	/*
	37	* Definitions for DECNET Phase IV protocol headers
	38	*/
	39	union etheraddress {
	40	u_int8_t dne_addr[6]; /* full ethernet address */
	41	struct {
	42	u_int8_t dne_hiord[4]; /* DECnet HIORD prefix */
	43	u_int8_t dne_nodeaddr[2]; /* DECnet node address */
	44	} dne_remote;
	45	};
	46
	47	typedef union etheraddress etheraddr; /* Ethernet address */
	48
	49	#define HIORD 0x000400aa /* high 32-bits of address (swapped) */
	50
	51	#define AREAMASK 0176000 /* mask for area field */
	52	#define AREASHIFT 10 /* bit-offset for area field */
	53	#define NODEMASK 01777 /* mask for node address field */
	54
	55	#define DN_MAXADDL 20 /* max size of DECnet address */
	56	struct dn_naddr {
	57	u_int16_t a_len; /* length of address */
	58	u_int8_t a_addr[DN_MAXADDL]; /* address as bytes */
	59	};
	60
	61	/*
	62	* Define long and short header formats.
	63	*/
	64	struct shorthdr
65	{
66	byte sh_flags; /* route flags */
67	word sh_dst; /* destination node address */
68	word sh_src; /* source node address */
69	byte sh_visits; /* visit count */
70	};
71
72	struct longhdr
73	{
74	byte lg_flags; /* route flags */
75	byte lg_darea; /* destination area (reserved) */
76	byte lg_dsarea; /* destination subarea (reserved) */
77	etheraddr lg_dst; /* destination id */
78	byte lg_sarea; /* source area (reserved) */
79	byte lg_ssarea; /* source subarea (reserved) */
80	etheraddr lg_src; /* source id */
81	byte lg_nextl2; /* next level 2 router (reserved) */
82	byte lg_visits; /* visit count */
83	byte lg_service; /* service class (reserved) */
84	byte lg_pt; /* protocol type (reserved) */
85	};
86
87	union routehdr
88	{
89	struct shorthdr rh_short; /* short route header */
90	struct longhdr rh_long; /* long route header */
91	};
92
93	/*
94	* Define the values of various fields in the protocol messages.
95	*
96	* 1. Data packet formats.
97	*/
98	#define RMF_MASK 7 /* mask for message type */
99	#define RMF_SHORT 2 /* short message format */
100	#define RMF_LONG 6 /* long message format */
101	#ifndef RMF_RQR
102	#define RMF_RQR 010 /* request return to sender */
103	#define RMF_RTS 020 /* returning to sender */
104	#define RMF_IE 040 /* intra-ethernet packet */
105	#endif /* RMR_RQR */
106	#define RMF_FVER 0100 /* future version flag */
107	#define RMF_PAD 0200 /* pad field */
108	#define RMF_PADMASK 0177 /* pad field mask */
109
110	#define VIS_MASK 077 /* visit field mask */
111
112	/*
113	* 2. Control packet formats.
114	*/
115	#define RMF_CTLMASK 017 /* mask for message type */
116	#define RMF_CTLMSG 01 /* control message indicator */
117	#define RMF_INIT 01 /* initialization message */
118	#define RMF_VER 03 /* verification message */
119	#define RMF_TEST 05 /* hello and test message */
120	#define RMF_L1ROUT 07 /* level 1 routing message */
121	#define RMF_L2ROUT 011 /* level 2 routing message */
122	#define RMF_RHELLO 013 /* router hello message */
123	#define RMF_EHELLO 015 /* endnode hello message */
124
125	#define TI_L2ROUT 01 /* level 2 router */
126	#define TI_L1ROUT 02 /* level 1 router */
127	#define TI_ENDNODE 03 /* endnode */
128	#define TI_VERIF 04 /* verification required */
129	#define TI_BLOCK 010 /* blocking requested */
130
131	#define VE_VERS 2 /* version number (2) */
132	#define VE_ECO 0 /* ECO number */
133	#define VE_UECO 0 /* user ECO number (0) */
134
135	#define P3_VERS 1 /* phase III version number (1) */
136	#define P3_ECO 3 /* ECO number (3) */
137	#define P3_UECO 0 /* user ECO number (0) */
138
139	#define II_L2ROUT 01 /* level 2 router */
140	#define II_L1ROUT 02 /* level 1 router */
141	#define II_ENDNODE 03 /* endnode */
142	#define II_VERIF 04 /* verification required */
143	#define II_NOMCAST 040 /* no multicast traffic accepted */
144	#define II_BLOCK 0100 /* blocking requested */
145	#define II_TYPEMASK 03 /* mask for node type */
146
147	#define TESTDATA 0252 /* test data bytes */
148	#define TESTLEN 1 /* length of transmitted test data */
149
150	/*
151	* Define control message formats.
152	*/
153	struct initmsgIII /* phase III initialization message */
154	{
155	byte inIII_flags; /* route flags */
156	word inIII_src; /* source node address */
157	byte inIII_info; /* routing layer information */
158	word inIII_blksize; /* maximum data link block size */
159	byte inIII_vers; /* version number */
160	byte inIII_eco; /* ECO number */
161	byte inIII_ueco; /* user ECO number */
162	byte inIII_rsvd; /* reserved image field */
163	};
164
165	struct initmsg /* initialization message */
166	{
167	byte in_flags; /* route flags */
168	word in_src; /* source node address */
169	byte in_info; /* routing layer information */
170	word in_blksize; /* maximum data link block size */
171	byte in_vers; /* version number */
172	byte in_eco; /* ECO number */
173	byte in_ueco; /* user ECO number */
174	word in_hello; /* hello timer */
175	byte in_rsvd; /* reserved image field */
176	};
177
178	struct verifmsg /* verification message */
179	{
180	byte ve_flags; /* route flags */
181	word ve_src; /* source node address */
182	byte ve_fcnval; /* function value image field */
183	};
184
185	struct testmsg /* hello and test message */
186	{
187	byte te_flags; /* route flags */
188	word te_src; /* source node address */
189	byte te_data; /* test data image field */
190	};
191
192	struct l1rout /* level 1 routing message */
193	{
194	byte r1_flags; /* route flags */
195	word r1_src; /* source node address */
196	byte r1_rsvd; /* reserved field */
197	};
198
199	struct l2rout /* level 2 routing message */
200	{
201	byte r2_flags; /* route flags */
202	word r2_src; /* source node address */
203	byte r2_rsvd; /* reserved field */
204	};
205
206	struct rhellomsg /* router hello message */
207	{
208	byte rh_flags; /* route flags */
209	byte rh_vers; /* version number */
210	byte rh_eco; /* ECO number */
211	byte rh_ueco; /* user ECO number */
212	etheraddr rh_src; /* source id */
213	byte rh_info; /* routing layer information */
214	word rh_blksize; /* maximum data link block size */
215	byte rh_priority; /* router's priority */
216	byte rh_area; /* reserved */
217	word rh_hello; /* hello timer */
218	byte rh_mpd; /* reserved */
219	};
220
221	struct ehellomsg /* endnode hello message */
222	{
223	byte eh_flags; /* route flags */
224	byte eh_vers; /* version number */
225	byte eh_eco; /* ECO number */
226	byte eh_ueco; /* user ECO number */
227	etheraddr eh_src; /* source id */
228	byte eh_info; /* routing layer information */
229	word eh_blksize; /* maximum data link block size */
230	byte eh_area; /* area (reserved) */
231	byte eh_seed[8]; /* verification seed */
232	etheraddr eh_router; /* designated router */
233	word eh_hello; /* hello timer */
234	byte eh_mpd; /* (reserved) */
235	byte eh_data; /* test data image field */
236	};
237
238	union controlmsg
239	{
240	struct initmsg cm_init; /* initialization message */
241	struct verifmsg cm_ver; /* verification message */
242	struct testmsg cm_test; /* hello and test message */
243	struct l1rout cm_l1rou; /* level 1 routing message */
244	struct l2rout cm_l2rout; /* level 2 routing message */
245	struct rhellomsg cm_rhello; /* router hello message */
246	struct ehellomsg cm_ehello; /* endnode hello message */
247	};
248
249	/* Macros for decoding routing-info fields */
250	#define RI_COST(x) ((x)&0777)
251	#define RI_HOPS(x) (((x)>>10)&037)
252	\f
253	/*
254	* NSP protocol fields and values.
255	*/
256
257	#define NSP_TYPEMASK 014 /* mask to isolate type code */
258	#define NSP_SUBMASK 0160 /* mask to isolate subtype code */
259	#define NSP_SUBSHFT 4 /* shift to move subtype code */
260
261	#define MFT_DATA 0 /* data message */
262	#define MFT_ACK 04 /* acknowledgement message */
263	#define MFT_CTL 010 /* control message */
264
265	#define MFS_ILS 020 /* data or I/LS indicator */
266	#define MFS_BOM 040 /* beginning of message (data) */
267	#define MFS_MOM 0 /* middle of message (data) */
268	#define MFS_EOM 0100 /* end of message (data) */
269	#define MFS_INT 040 /* interrupt message */
270
271	#define MFS_DACK 0 /* data acknowledgement */
272	#define MFS_IACK 020 /* I/LS acknowledgement */
273	#define MFS_CACK 040 /* connect acknowledgement */
274
275	#define MFS_NOP 0 /* no operation */
276	#define MFS_CI 020 /* connect initiate */
277	#define MFS_CC 040 /* connect confirm */
278	#define MFS_DI 060 /* disconnect initiate */
279	#define MFS_DC 0100 /* disconnect confirm */
280	#define MFS_RCI 0140 /* retransmitted connect initiate */
281
282	#define SGQ_ACK 0100000 /* ack */
283	#define SGQ_NAK 0110000 /* negative ack */
284	#define SGQ_OACK 0120000 /* other channel ack */
285	#define SGQ_ONAK 0130000 /* other channel negative ack */
286	#define SGQ_MASK 07777 /* mask to isolate seq # */
287	#define SGQ_OTHER 020000 /* other channel qualifier */
288	#define SGQ_DELAY 010000 /* ack delay flag */
289
290	#define SGQ_EOM 0100000 /* pseudo flag for end-of-message */
291
292	#define LSM_MASK 03 /* mask for modifier field */
293	#define LSM_NOCHANGE 0 /* no change */
294	#define LSM_DONOTSEND 1 /* do not send data */
295	#define LSM_SEND 2 /* send data */
296
297	#define LSI_MASK 014 /* mask for interpretation field */
298	#define LSI_DATA 0 /* data segment or message count */
299	#define LSI_INTR 4 /* interrupt request count */
300	#define LSI_INTM 0377 /* funny marker for int. message */
301
302	#define COS_MASK 014 /* mask for flow control field */
303	#define COS_NONE 0 /* no flow control */
304	#define COS_SEGMENT 04 /* segment flow control */
305	#define COS_MESSAGE 010 /* message flow control */
306	#define COS_CRYPTSER 020 /* cryptographic services requested */
307	#define COS_DEFAULT 1 /* default value for field */
308
309	#define COI_MASK 3 /* mask for version field */
310	#define COI_32 0 /* version 3.2 */
311	#define COI_31 1 /* version 3.1 */
312	#define COI_40 2 /* version 4.0 */
313	#define COI_41 3 /* version 4.1 */
314
315	#define MNU_MASK 140 /* mask for session control version */
316	#define MNU_10 000 /* session V1.0 */
317	#define MNU_20 040 /* session V2.0 */
318	#define MNU_ACCESS 1 /* access control present */
319	#define MNU_USRDATA 2 /* user data field present */
320	#define MNU_INVKPROXY 4 /* invoke proxy field present */
321	#define MNU_UICPROXY 8 /* use uic-based proxy */
322
323	#define DC_NORESOURCES 1 /* no resource reason code */
324	#define DC_NOLINK 41 /* no link terminate reason code */
325	#define DC_COMPLETE 42 /* disconnect complete reason code */
326
327	#define DI_NOERROR 0 /* user disconnect */
328	#define DI_SHUT 3 /* node is shutting down */
329	#define DI_NOUSER 4 /* destination end user does not exist */
330	#define DI_INVDEST 5 /* invalid end user destination */
331	#define DI_REMRESRC 6 /* insufficient remote resources */
332	#define DI_TPA 8 /* third party abort */
333	#define DI_PROTOCOL 7 /* protocol error discovered */
334	#define DI_ABORT 9 /* user abort */
335	#define DI_LOCALRESRC 32 /* insufficient local resources */
336	#define DI_REMUSERRESRC 33 /* insufficient remote user resources */
337	#define DI_BADACCESS 34 /* bad access control information */
338	#define DI_BADACCNT 36 /* bad ACCOUNT information */
339	#define DI_CONNECTABORT 38 /* connect request cancelled */
340	#define DI_TIMEDOUT 38 /* remote node or user crashed */
341	#define DI_UNREACHABLE 39 /* local timers expired due to ... */
342	#define DI_BADIMAGE 43 /* bad image data in connect */
343	#define DI_SERVMISMATCH 54 /* cryptographic service mismatch */
344
345	#define UC_OBJREJECT 0 /* object rejected connect */
346	#define UC_USERDISCONNECT 0 /* user disconnect */
347	#define UC_RESOURCES 1 /* insufficient resources (local or remote) */
348	#define UC_NOSUCHNODE 2 /* unrecognized node name */
349	#define UC_REMOTESHUT 3 /* remote node shutting down */
350	#define UC_NOSUCHOBJ 4 /* unrecognized object */
351	#define UC_INVOBJFORMAT 5 /* invalid object name format */
352	#define UC_OBJTOOBUSY 6 /* object too busy */
353	#define UC_NETWORKABORT 8 /* network abort */
354	#define UC_USERABORT 9 /* user abort */
355	#define UC_INVNODEFORMAT 10 /* invalid node name format */
356	#define UC_LOCALSHUT 11 /* local node shutting down */
357	#define UC_ACCESSREJECT 34 /* invalid access control information */
358	#define UC_NORESPONSE 38 /* no response from object */
359	#define UC_UNREACHABLE 39 /* node unreachable */
360
361	/*
362	* NSP message formats.
363	*/
364	struct nsphdr /* general nsp header */
365	{
366	byte nh_flags; /* message flags */
367	word nh_dst; /* destination link address */
368	word nh_src; /* source link address */
369	};
370
371	struct seghdr /* data segment header */
372	{
373	byte sh_flags; /* message flags */
374	word sh_dst; /* destination link address */
375	word sh_src; /* source link address */
376	word sh_seq[3]; /* sequence numbers */
377	};
378
379	struct minseghdr /* minimum data segment header */
380	{
381	byte ms_flags; /* message flags */
382	word ms_dst; /* destination link address */
383	word ms_src; /* source link address */
384	word ms_seq; /* sequence number */
385	};
386
387	struct lsmsg /* link service message (after hdr) */
388	{
389	byte ls_lsflags; /* link service flags */
390	byte ls_fcval; /* flow control value */
391	};
392
393	struct ackmsg /* acknowledgement message */
394	{
395	byte ak_flags; /* message flags */
396	word ak_dst; /* destination link address */
397	word ak_src; /* source link address */
398	word ak_acknum[2]; /* acknowledgement numbers */
399	};
400
401	struct minackmsg /* minimum acknowledgement message */
402	{
403	byte mk_flags; /* message flags */
404	word mk_dst; /* destination link address */
405	word mk_src; /* source link address */
406	word mk_acknum; /* acknowledgement number */
407	};
408
409	struct ciackmsg /* connect acknowledgement message */
410	{
411	byte ck_flags; /* message flags */
412	word ck_dst; /* destination link address */
413	};
414
415	struct cimsg /* connect initiate message */
416	{
417	byte ci_flags; /* message flags */
418	word ci_dst; /* destination link address (0) */
419	word ci_src; /* source link address */
420	byte ci_services; /* requested services */
421	byte ci_info; /* information */
422	word ci_segsize; /* maximum segment size */
423	};
424
425	struct ccmsg /* connect confirm message */
426	{
427	byte cc_flags; /* message flags */
428	word cc_dst; /* destination link address */
429	word cc_src; /* source link address */
430	byte cc_services; /* requested services */
431	byte cc_info; /* information */
432	word cc_segsize; /* maximum segment size */
433	byte cc_optlen; /* optional data length */
434	};
435
436	struct cnmsg /* generic connect message */
437	{
438	byte cn_flags; /* message flags */
439	word cn_dst; /* destination link address */
440	word cn_src; /* source link address */
441	byte cn_services; /* requested services */
442	byte cn_info; /* information */
443	word cn_segsize; /* maximum segment size */
444	};
445
446	struct dimsg /* disconnect initiate message */
447	{
448	byte di_flags; /* message flags */
449	word di_dst; /* destination link address */
450	word di_src; /* source link address */
451	word di_reason; /* reason code */
452	byte di_optlen; /* optional data length */
453	};
454
455	struct dcmsg /* disconnect confirm message */
456	{
457	byte dc_flags; /* message flags */
458	word dc_dst; /* destination link address */
459	word dc_src; /* source link address */
460	word dc_reason; /* reason code */
461	};