mirror of
https://github.com/the-tcpdump-group/tcpdump.git
synced 2024-12-12 03:13:29 +08:00
fcc82f451d
compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
462 lines
16 KiB
C
462 lines
16 KiB
C
/*
|
||
* 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)
|
||
|
||
/*
|
||
* 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 */
|
||
};
|