tcpdump.tproj/decnet.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * Copyright (c) 1992, 1994, 1996
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that: (1) source code distributions
  30  * retain the above copyright notice and this paragraph in its entirety, (2)
  31  * distributions including binary code include the above copyright notice and
  32  * this paragraph in its entirety in the documentation or other materials
  33  * provided with the distribution, and (3) all advertising materials mentioning
  34  * features or use of this software display the following acknowledgement:
  35  * ``This product includes software developed by the University of California,
  36  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  37  * the University nor the names of its contributors may be used to endorse
  38  * or promote products derived from this software without specific prior
  39  * written permission.
  40  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  41  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  42  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  43  *
  44  * @(#) $Header: /cvs/Darwin/Commands/NeXT/network_cmds/tcpdump.tproj/decnet.h,v 1.1.1.1 1999/05/02 03:58:31 wsanchez Exp $ (LBL)
  45  */
  46
  47 typedef unsigned char byte[1];          /* single byte field */
  48 typedef unsigned char word[2];          /* 2 byte field */
  49 typedef unsigned char longword[4];      /* 4 bytes field */
  50
  51 /*
  52  * Definitions for DECNET Phase IV protocol headers
  53  */
  54 union etheraddress {
  55         unsigned char   dne_addr[6];            /* full ethernet address */
  56         struct {
  57                 unsigned char dne_hiord[4];     /* DECnet HIORD prefix */
  58                 unsigned char dne_nodeaddr[2];  /* DECnet node address */
  59         } dne_remote;
  60 };
  61
  62 typedef union etheraddress etheraddr;   /* Ethernet address */
  63
  64 #define HIORD 0x000400aa                /* high 32-bits of address (swapped) */
  65
  66 #define AREAMASK        0176000         /* mask for area field */
  67 #define AREASHIFT       10              /* bit-offset for area field */
  68 #define NODEMASK        01777           /* mask for node address field */
  69
  70 #define DN_MAXADDL      20              /* max size of DECnet address */
  71 struct dn_naddr {
  72         unsigned short  a_len;          /* length of address */
  73         unsigned char a_addr[DN_MAXADDL]; /* address as bytes */
  74 };
  75
  76 /*
  77  * Define long and short header formats.
  78  */
  79 struct shorthdr
  80   {
  81     byte        sh_flags;               /* route flags */
  82     word        sh_dst;                 /* destination node address */
  83     word        sh_src;                 /* source node address */
  84     byte        sh_visits;              /* visit count */
  85   };
  86
  87 struct longhdr
  88   {
  89     byte        lg_flags;               /* route flags */
  90     byte        lg_darea;               /* destination area (reserved) */
  91     byte        lg_dsarea;              /* destination subarea (reserved) */
  92     etheraddr   lg_dst;                 /* destination id */
  93     byte        lg_sarea;               /* source area (reserved) */
  94     byte        lg_ssarea;              /* source subarea (reserved) */
  95     etheraddr   lg_src;                 /* source id */
  96     byte        lg_nextl2;              /* next level 2 router (reserved) */
  97     byte        lg_visits;              /* visit count */
  98     byte        lg_service;             /* service class (reserved) */
  99     byte        lg_pt;                  /* protocol type (reserved) */
 100   };
 101
 102 union routehdr
 103   {
 104     struct shorthdr rh_short;           /* short route header */
 105     struct longhdr rh_long;             /* long route header */
 106   };
 107
 108 /*
 109  * Define the values of various fields in the protocol messages.
 110  *
 111  * 1. Data packet formats.
 112  */
 113 #define RMF_MASK        7               /* mask for message type */
 114 #define RMF_SHORT       2               /* short message format */
 115 #define RMF_LONG        6               /* long message format */
 116 #ifndef RMF_RQR
 117 #define RMF_RQR         010             /* request return to sender */
 118 #define RMF_RTS         020             /* returning to sender */
 119 #define RMF_IE          040             /* intra-ethernet packet */
 120 #endif /* RMR_RQR */
 121 #define RMF_FVER        0100            /* future version flag */
 122 #define RMF_PAD         0200            /* pad field */
 123 #define RMF_PADMASK     0177            /* pad field mask */
 124
 125 #define VIS_MASK        077             /* visit field mask */
 126
 127 /*
 128  * 2. Control packet formats.
 129  */
 130 #define RMF_CTLMASK     017             /* mask for message type */
 131 #define RMF_CTLMSG      01              /* control message indicator */
 132 #define RMF_INIT        01              /* initialization message */
 133 #define RMF_VER         03              /* verification message */
 134 #define RMF_TEST        05              /* hello and test message */
 135 #define RMF_L1ROUT      07              /* level 1 routing message */
 136 #define RMF_L2ROUT      011             /* level 2 routing message */
 137 #define RMF_RHELLO      013             /* router hello message */
 138 #define RMF_EHELLO      015             /* endnode hello message */
 139
 140 #define TI_L2ROUT       01              /* level 2 router */
 141 #define TI_L1ROUT       02              /* level 1 router */
 142 #define TI_ENDNODE      03              /* endnode */
 143 #define TI_VERIF        04              /* verification required */
 144 #define TI_BLOCK        010             /* blocking requested */
 145
 146 #define VE_VERS         2               /* version number (2) */
 147 #define VE_ECO          0               /* ECO number */
 148 #define VE_UECO         0               /* user ECO number (0) */
 149
 150 #define P3_VERS         1               /* phase III version number (1) */
 151 #define P3_ECO          3               /* ECO number (3) */
 152 #define P3_UECO         0               /* user ECO number (0) */
 153
 154 #define II_L2ROUT       01              /* level 2 router */
 155 #define II_L1ROUT       02              /* level 1 router */
 156 #define II_ENDNODE      03              /* endnode */
 157 #define II_VERIF        04              /* verification required */
 158 #define II_NOMCAST      040             /* no multicast traffic accepted */
 159 #define II_BLOCK        0100            /* blocking requested */
 160 #define II_TYPEMASK     03              /* mask for node type */
 161
 162 #define TESTDATA        0252            /* test data bytes */
 163 #define TESTLEN         1               /* length of transmitted test data */
 164
 165 /*
 166  * Define control message formats.
 167  */
 168 struct initmsgIII                       /* phase III initialization message */
 169   {
 170     byte        inIII_flags;            /* route flags */
 171     word        inIII_src;              /* source node address */
 172     byte        inIII_info;             /* routing layer information */
 173     word        inIII_blksize;          /* maximum data link block size */
 174     byte        inIII_vers;             /* version number */
 175     byte        inIII_eco;              /* ECO number */
 176     byte        inIII_ueco;             /* user ECO number */
 177     byte        inIII_rsvd;             /* reserved image field */
 178   };
 179
 180 struct initmsg                          /* initialization message */
 181   {
 182     byte        in_flags;               /* route flags */
 183     word        in_src;                 /* source node address */
 184     byte        in_info;                /* routing layer information */
 185     word        in_blksize;             /* maximum data link block size */
 186     byte        in_vers;                /* version number */
 187     byte        in_eco;                 /* ECO number */
 188     byte        in_ueco;                /* user ECO number */
 189     word        in_hello;               /* hello timer */
 190     byte        in_rsvd;                /* reserved image field */
 191   };
 192
 193 struct verifmsg                         /* verification message */
 194   {
 195     byte        ve_flags;               /* route flags */
 196     word        ve_src;                 /* source node address */
 197     byte        ve_fcnval;              /* function value image field */
 198   };
 199
 200 struct testmsg                          /* hello and test message */
 201   {
 202     byte        te_flags;               /* route flags */
 203     word        te_src;                 /* source node address */
 204     byte        te_data;                /* test data image field */
 205   };
 206
 207 struct l1rout                           /* level 1 routing message */
 208   {
 209     byte        r1_flags;               /* route flags */
 210     word        r1_src;                 /* source node address */
 211     byte        r1_rsvd;                /* reserved field */
 212   };
 213
 214 struct l2rout                           /* level 2 routing message */
 215   {
 216     byte        r2_flags;               /* route flags */
 217     word        r2_src;                 /* source node address */
 218     byte        r2_rsvd;                /* reserved field */
 219   };
 220
 221 struct rhellomsg                        /* router hello message */
 222   {
 223     byte        rh_flags;               /* route flags */
 224     byte        rh_vers;                /* version number */
 225     byte        rh_eco;                 /* ECO number */
 226     byte        rh_ueco;                /* user ECO number */
 227     etheraddr   rh_src;                 /* source id */
 228     byte        rh_info;                /* routing layer information */
 229     word        rh_blksize;             /* maximum data link block size */
 230     byte        rh_priority;            /* router's priority */
 231     byte        rh_area;                /* reserved */
 232     word        rh_hello;               /* hello timer */
 233     byte        rh_mpd;                 /* reserved */
 234   };
 235
 236 struct ehellomsg                        /* endnode hello message */
 237   {
 238     byte        eh_flags;               /* route flags */
 239     byte        eh_vers;                /* version number */
 240     byte        eh_eco;                 /* ECO number */
 241     byte        eh_ueco;                /* user ECO number */
 242     etheraddr   eh_src;                 /* source id */
 243     byte        eh_info;                /* routing layer information */
 244     word        eh_blksize;             /* maximum data link block size */
 245     byte        eh_area;                /* area (reserved) */
 246     byte        eh_seed[8];             /* verification seed */
 247     etheraddr   eh_router;              /* designated router */
 248     word        eh_hello;               /* hello timer */
 249     byte        eh_mpd;                 /* (reserved) */
 250     byte        eh_data;                /* test data image field */
 251   };
 252
 253 union controlmsg
 254   {
 255     struct initmsg      cm_init;        /* initialization message */
 256     struct verifmsg     cm_ver;         /* verification message */
 257     struct testmsg      cm_test;        /* hello and test message */
 258     struct l1rout       cm_l1rou;       /* level 1 routing message */
 259     struct l2rout       cm_l2rout;      /* level 2 routing message */
 260     struct rhellomsg    cm_rhello;      /* router hello message */
 261     struct ehellomsg    cm_ehello;      /* endnode hello message */
 262   };
 263
 264 /* Macros for decoding routing-info fields */
 265 #define RI_COST(x)      ((x)&0777)
 266 #define RI_HOPS(x)      (((x)>>10)&037)
 267 \f
 268 /*
 269  * NSP protocol fields and values.
 270  */
 271
 272 #define NSP_TYPEMASK 014                /* mask to isolate type code */
 273 #define NSP_SUBMASK 0160                /* mask to isolate subtype code */
 274 #define NSP_SUBSHFT 4                   /* shift to move subtype code */
 275
 276 #define MFT_DATA 0                      /* data message */
 277 #define MFT_ACK  04                     /* acknowledgement message */
 278 #define MFT_CTL  010                    /* control message */
 279
 280 #define MFS_ILS  020                    /* data or I/LS indicator */
 281 #define MFS_BOM  040                    /* beginning of message (data) */
 282 #define MFS_MOM  0                      /* middle of message (data) */
 283 #define MFS_EOM  0100                   /* end of message (data) */
 284 #define MFS_INT  040                    /* interrupt message */
 285
 286 #define MFS_DACK 0                      /* data acknowledgement */
 287 #define MFS_IACK 020                    /* I/LS acknowledgement */
 288 #define MFS_CACK 040                    /* connect acknowledgement */
 289
 290 #define MFS_NOP  0                      /* no operation */
 291 #define MFS_CI   020                    /* connect initiate */
 292 #define MFS_CC   040                    /* connect confirm */
 293 #define MFS_DI   060                    /* disconnect initiate */
 294 #define MFS_DC   0100                   /* disconnect confirm */
 295 #define MFS_RCI  0140                   /* retransmitted connect initiate */
 296
 297 #define SGQ_ACK  0100000                /* ack */
 298 #define SGQ_NAK  0110000                /* negative ack */
 299 #define SGQ_OACK 0120000                /* other channel ack */
 300 #define SGQ_ONAK 0130000                /* other channel negative ack */
 301 #define SGQ_MASK 07777                  /* mask to isolate seq # */
 302 #define SGQ_OTHER 020000                /* other channel qualifier */
 303 #define SGQ_DELAY 010000                /* ack delay flag */
 304
 305 #define SGQ_EOM  0100000                /* pseudo flag for end-of-message */
 306
 307 #define LSM_MASK 03                     /* mask for modifier field */
 308 #define LSM_NOCHANGE 0                  /* no change */
 309 #define LSM_DONOTSEND 1                 /* do not send data */
 310 #define LSM_SEND 2                      /* send data */
 311
 312 #define LSI_MASK 014                    /* mask for interpretation field */
 313 #define LSI_DATA 0                      /* data segment or message count */
 314 #define LSI_INTR 4                      /* interrupt request count */
 315 #define LSI_INTM 0377                   /* funny marker for int. message */
 316
 317 #define COS_MASK 014                    /* mask for flow control field */
 318 #define COS_NONE 0                      /* no flow control */
 319 #define COS_SEGMENT 04                  /* segment flow control */
 320 #define COS_MESSAGE 010                 /* message flow control */
 321 #define COS_CRYPTSER 020                /* cryptographic services requested */
 322 #define COS_DEFAULT 1                   /* default value for field */
 323
 324 #define COI_MASK 3                      /* mask for version field */
 325 #define COI_32 0                        /* version 3.2 */
 326 #define COI_31 1                        /* version 3.1 */
 327 #define COI_40 2                        /* version 4.0 */
 328 #define COI_41 3                        /* version 4.1 */
 329
 330 #define MNU_MASK 140                    /* mask for session control version */
 331 #define MNU_10 000                              /* session V1.0 */
 332 #define MNU_20 040                              /* session V2.0 */
 333 #define MNU_ACCESS 1                    /* access control present */
 334 #define MNU_USRDATA 2                   /* user data field present */
 335 #define MNU_INVKPROXY 4                 /* invoke proxy field present */
 336 #define MNU_UICPROXY 8                  /* use uic-based proxy */
 337
 338 #define DC_NORESOURCES 1                /* no resource reason code */
 339 #define DC_NOLINK 41                    /* no link terminate reason code */
 340 #define DC_COMPLETE 42                  /* disconnect complete reason code */
 341
 342 #define DI_NOERROR 0                    /* user disconnect */
 343 #define DI_SHUT 3                       /* node is shutting down */
 344 #define DI_NOUSER 4                     /* destination end user does not exist */
 345 #define DI_INVDEST 5                    /* invalid end user destination */
 346 #define DI_REMRESRC 6                   /* insufficient remote resources */
 347 #define DI_TPA 8                        /* third party abort */
 348 #define DI_PROTOCOL 7                   /* protocol error discovered */
 349 #define DI_ABORT 9                      /* user abort */
 350 #define DI_LOCALRESRC 32                /* insufficient local resources */
 351 #define DI_REMUSERRESRC 33              /* insufficient remote user resources */
 352 #define DI_BADACCESS 34                 /* bad access control information */
 353 #define DI_BADACCNT 36                  /* bad ACCOUNT information */
 354 #define DI_CONNECTABORT 38              /* connect request cancelled */
 355 #define DI_TIMEDOUT 38                  /* remote node or user crashed */
 356 #define DI_UNREACHABLE 39               /* local timers expired due to ... */
 357 #define DI_BADIMAGE 43                  /* bad image data in connect */
 358 #define DI_SERVMISMATCH 54              /* cryptographic service mismatch */
 359
 360 #define UC_OBJREJECT 0                  /* object rejected connect */
 361 #define UC_USERDISCONNECT 0             /* user disconnect */
 362 #define UC_RESOURCES 1                  /* insufficient resources (local or remote) */
 363 #define UC_NOSUCHNODE 2                 /* unrecognized node name */
 364 #define UC_REMOTESHUT 3                 /* remote node shutting down */
 365 #define UC_NOSUCHOBJ 4                  /* unrecognized object */
 366 #define UC_INVOBJFORMAT 5               /* invalid object name format */
 367 #define UC_OBJTOOBUSY 6                 /* object too busy */
 368 #define UC_NETWORKABORT 8               /* network abort */
 369 #define UC_USERABORT 9                  /* user abort */
 370 #define UC_INVNODEFORMAT 10             /* invalid node name format */
 371 #define UC_LOCALSHUT 11                 /* local node shutting down */
 372 #define UC_ACCESSREJECT 34              /* invalid access control information */
 373 #define UC_NORESPONSE 38                /* no response from object */
 374 #define UC_UNREACHABLE 39               /* node unreachable */
 375
 376 /*
 377  * NSP message formats.
 378  */
 379 struct nsphdr                           /* general nsp header */
 380   {
 381     byte        nh_flags;               /* message flags */
 382     word        nh_dst;                 /* destination link address */
 383     word        nh_src;                 /* source link address */
 384   };
 385
 386 struct seghdr                           /* data segment header */
 387   {
 388     byte        sh_flags;               /* message flags */
 389     word        sh_dst;                 /* destination link address */
 390     word        sh_src;                 /* source link address */
 391     word        sh_seq[3];              /* sequence numbers */
 392   };
 393
 394 struct minseghdr                        /* minimum data segment header */
 395   {
 396     byte        ms_flags;               /* message flags */
 397     word        ms_dst;                 /* destination link address */
 398     word        ms_src;                 /* source link address */
 399     word        ms_seq;                 /* sequence number */
 400   };
 401
 402 struct lsmsg                            /* link service message (after hdr) */
 403   {
 404     byte        ls_lsflags;             /* link service flags */
 405     byte        ls_fcval;               /* flow control value */
 406   };
 407
 408 struct ackmsg                           /* acknowledgement message */
 409   {
 410     byte        ak_flags;               /* message flags */
 411     word        ak_dst;                 /* destination link address */
 412     word        ak_src;                 /* source link address */
 413     word        ak_acknum[2];           /* acknowledgement numbers */
 414   };
 415
 416 struct minackmsg                        /* minimum acknowledgement message */
 417   {
 418     byte        mk_flags;               /* message flags */
 419     word        mk_dst;                 /* destination link address */
 420     word        mk_src;                 /* source link address */
 421     word        mk_acknum;              /* acknowledgement number */
 422   };
 423
 424 struct ciackmsg                         /* connect acknowledgement message */
 425   {
 426     byte        ck_flags;               /* message flags */
 427     word        ck_dst;                 /* destination link address */
 428   };
 429
 430 struct cimsg                            /* connect initiate message */
 431   {
 432     byte        ci_flags;               /* message flags */
 433     word        ci_dst;                 /* destination link address (0) */
 434     word        ci_src;                 /* source link address */
 435     byte        ci_services;            /* requested services */
 436     byte        ci_info;                /* information */
 437     word        ci_segsize;             /* maximum segment size */
 438   };
 439
 440 struct ccmsg                            /* connect confirm message */
 441   {
 442     byte        cc_flags;               /* message flags */
 443     word        cc_dst;                 /* destination link address */
 444     word        cc_src;                 /* source link address */
 445     byte        cc_services;            /* requested services */
 446     byte        cc_info;                /* information */
 447     word        cc_segsize;             /* maximum segment size */
 448     byte        cc_optlen;              /* optional data length */
 449   };
 450
 451 struct cnmsg                            /* generic connect message */
 452   {
 453     byte        cn_flags;               /* message flags */
 454     word        cn_dst;                 /* destination link address */
 455     word        cn_src;                 /* source link address */
 456     byte        cn_services;            /* requested services */
 457     byte        cn_info;                /* information */
 458     word        cn_segsize;             /* maximum segment size */
 459   };
 460
 461 struct dimsg                            /* disconnect initiate message */
 462   {
 463     byte        di_flags;               /* message flags */
 464     word        di_dst;                 /* destination link address */
 465     word        di_src;                 /* source link address */
 466     word        di_reason;              /* reason code */
 467     byte        di_optlen;              /* optional data length */
 468   };
 469
 470 struct dcmsg                            /* disconnect confirm message */
 471   {
 472     byte        dc_flags;               /* message flags */
 473     word        dc_dst;                 /* destination link address */
 474     word        dc_src;                 /* source link address */
 475     word        dc_reason;              /* reason code */
 476   };