mirror of
https://github.com/the-tcpdump-group/tcpdump.git
synced 2024-11-25 02:53:35 +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.
324 lines
7.3 KiB
C
324 lines
7.3 KiB
C
/* @(#) $Header: /tcpdump/master/tcpdump/sctpHeader.h,v 1.6 2002-12-11 07:14:11 guy Exp $ (LBL) */
|
|
|
|
/* SCTP reference Implementation Copyright (C) 1999 Cisco And Motorola
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 4. Neither the name of Cisco nor of Motorola may be used
|
|
* to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* This file is part of the SCTP reference Implementation
|
|
*
|
|
*
|
|
* Please send any bug reports or fixes you make to one of the following email
|
|
* addresses:
|
|
*
|
|
* rstewar1@email.mot.com
|
|
* kmorneau@cisco.com
|
|
* qxie1@email.mot.com
|
|
*
|
|
* Any bugs reported given to us we will try to fix... any fixes shared will
|
|
* be incorperated into the next SCTP release.
|
|
*/
|
|
|
|
|
|
#ifndef __sctpHeader_h__
|
|
#define __sctpHeader_h__
|
|
|
|
#include <sctpConstants.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* the sctp common header */
|
|
|
|
#ifdef TRU64
|
|
#define _64BITS 1
|
|
#endif
|
|
|
|
struct sctpHeader{
|
|
u_int16_t source;
|
|
u_int16_t destination;
|
|
u_int32_t verificationTag;
|
|
u_int32_t adler32;
|
|
};
|
|
|
|
/* various descriptor parsers */
|
|
|
|
struct sctpChunkDesc{
|
|
u_int8_t chunkID;
|
|
u_int8_t chunkFlg;
|
|
u_int16_t chunkLength;
|
|
};
|
|
|
|
struct sctpParamDesc{
|
|
u_int16_t paramType;
|
|
u_int16_t paramLength;
|
|
};
|
|
|
|
|
|
struct sctpRelChunkDesc{
|
|
struct sctpChunkDesc chk;
|
|
u_int32_t serialNumber;
|
|
};
|
|
|
|
struct sctpVendorSpecificParam {
|
|
struct sctpParamDesc p; /* type must be 0xfffe */
|
|
u_int32_t vendorId; /* vendor ID from RFC 1700 */
|
|
u_int16_t vendorSpecificType;
|
|
u_int16_t vendorSpecificLen;
|
|
};
|
|
|
|
|
|
/* Structures for the control parts */
|
|
|
|
|
|
|
|
/* Sctp association init request/ack */
|
|
|
|
/* this is used for init ack, too */
|
|
struct sctpInitiation{
|
|
u_int32_t initTag; /* tag of mine */
|
|
u_int32_t rcvWindowCredit; /* rwnd */
|
|
u_int16_t NumPreopenStreams; /* OS */
|
|
u_int16_t MaxInboundStreams; /* MIS */
|
|
u_int32_t initialTSN;
|
|
/* optional param's follow in sctpParamDesc form */
|
|
};
|
|
|
|
struct sctpV4IpAddress{
|
|
struct sctpParamDesc p; /* type is set to SCTP_IPV4_PARAM_TYPE, len=10 */
|
|
u_int32_t ipAddress;
|
|
};
|
|
|
|
|
|
struct sctpV6IpAddress{
|
|
struct sctpParamDesc p; /* type is set to SCTP_IPV6_PARAM_TYPE, len=22 */
|
|
u_int8_t ipAddress[16];
|
|
};
|
|
|
|
struct sctpDNSName{
|
|
struct sctpParamDesc param;
|
|
u_int8_t name[1];
|
|
};
|
|
|
|
|
|
struct sctpCookiePreserve{
|
|
struct sctpParamDesc p; /* type is set to SCTP_COOKIE_PRESERVE, len=8 */
|
|
u_int32_t extraTime;
|
|
};
|
|
|
|
|
|
struct sctpTimeStamp{
|
|
u_int32_t ts_sec;
|
|
u_int32_t ts_usec;
|
|
};
|
|
|
|
/* wire structure of my cookie */
|
|
struct cookieMessage{
|
|
u_int32_t TieTag_curTag; /* copied from assoc if present */
|
|
u_int32_t TieTag_hisTag; /* copied from assoc if present */
|
|
int32_t cookieLife; /* life I will award this cookie */
|
|
struct sctpTimeStamp timeEnteringState; /* the time I built cookie */
|
|
struct sctpInitiation initAckISent; /* the INIT-ACK that I sent to my peer */
|
|
u_int32_t addressWhereISent[4]; /* I make this 4 ints so I get 128bits for future */
|
|
int32_t addrtype; /* address type */
|
|
u_int16_t locScope; /* V6 local scope flag */
|
|
u_int16_t siteScope; /* V6 site scope flag */
|
|
/* at the end is tacked on the INIT chunk sent in
|
|
* its entirety and of course our
|
|
* signature.
|
|
*/
|
|
};
|
|
|
|
|
|
/* this guy is for use when
|
|
* I have a initiate message gloming the
|
|
* things together.
|
|
|
|
*/
|
|
struct sctpUnifiedInit{
|
|
struct sctpChunkDesc uh;
|
|
struct sctpInitiation initm;
|
|
};
|
|
|
|
struct sctpSendableInit{
|
|
struct sctpHeader mh;
|
|
struct sctpUnifiedInit msg;
|
|
};
|
|
|
|
|
|
/* Selective Acknowledgement
|
|
* has the following structure with
|
|
* a optional ammount of trailing int's
|
|
* on the last part (based on the numberOfDesc
|
|
* field).
|
|
*/
|
|
|
|
struct sctpSelectiveAck{
|
|
u_int32_t highestConseqTSN;
|
|
u_int32_t updatedRwnd;
|
|
u_int16_t numberOfdesc;
|
|
u_int16_t numDupTsns;
|
|
};
|
|
|
|
struct sctpSelectiveFrag{
|
|
u_int16_t fragmentStart;
|
|
u_int16_t fragmentEnd;
|
|
};
|
|
|
|
|
|
struct sctpUnifiedSack{
|
|
struct sctpChunkDesc uh;
|
|
struct sctpSelectiveAck sack;
|
|
};
|
|
|
|
/* for both RTT request/response the
|
|
* following is sent
|
|
*/
|
|
|
|
struct sctpHBrequest {
|
|
u_int32_t time_value_1;
|
|
u_int32_t time_value_2;
|
|
};
|
|
|
|
/* here is what I read and respond with to. */
|
|
struct sctpHBunified{
|
|
struct sctpChunkDesc hdr;
|
|
struct sctpParamDesc hb;
|
|
};
|
|
|
|
|
|
/* here is what I send */
|
|
struct sctpHBsender{
|
|
struct sctpChunkDesc hdr;
|
|
struct sctpParamDesc hb;
|
|
struct sctpHBrequest rtt;
|
|
int8_t addrFmt[SCTP_ADDRMAX];
|
|
u_int16_t userreq;
|
|
};
|
|
|
|
|
|
|
|
/* for the abort and shutdown ACK
|
|
* we must carry the init tag in the common header. Just the
|
|
* common header is all that is needed with a chunk descriptor.
|
|
*/
|
|
struct sctpUnifiedAbort{
|
|
struct sctpChunkDesc uh;
|
|
};
|
|
|
|
struct sctpUnifiedAbortLight{
|
|
struct sctpHeader mh;
|
|
struct sctpChunkDesc uh;
|
|
};
|
|
|
|
struct sctpUnifiedAbortHeavy{
|
|
struct sctpHeader mh;
|
|
struct sctpChunkDesc uh;
|
|
u_int16_t causeCode;
|
|
u_int16_t causeLen;
|
|
};
|
|
|
|
/* For the graceful shutdown we must carry
|
|
* the tag (in common header) and the highest consequitive acking value
|
|
*/
|
|
struct sctpShutdown {
|
|
u_int32_t TSN_Seen;
|
|
};
|
|
|
|
struct sctpUnifiedShutdown{
|
|
struct sctpChunkDesc uh;
|
|
struct sctpShutdown shut;
|
|
};
|
|
|
|
/* in the unified message we add the trailing
|
|
* stream id since it is the only message
|
|
* that is defined as a operation error.
|
|
*/
|
|
struct sctpOpErrorCause{
|
|
u_int16_t cause;
|
|
u_int16_t causeLen;
|
|
};
|
|
|
|
struct sctpUnifiedOpError{
|
|
struct sctpChunkDesc uh;
|
|
struct sctpOpErrorCause c;
|
|
};
|
|
|
|
struct sctpUnifiedStreamError{
|
|
struct sctpHeader mh;
|
|
struct sctpChunkDesc uh;
|
|
struct sctpOpErrorCause c;
|
|
u_int16_t strmNum;
|
|
u_int16_t reserved;
|
|
};
|
|
|
|
struct staleCookieMsg{
|
|
struct sctpHeader mh;
|
|
struct sctpChunkDesc uh;
|
|
struct sctpOpErrorCause c;
|
|
u_int32_t moretime;
|
|
};
|
|
|
|
/* the following is used in all sends
|
|
* where nothing is needed except the
|
|
* chunk/type i.e. shutdownAck Abort */
|
|
|
|
struct sctpUnifiedSingleMsg{
|
|
struct sctpHeader mh;
|
|
struct sctpChunkDesc uh;
|
|
};
|
|
|
|
struct sctpDataPart{
|
|
u_int32_t TSN;
|
|
u_int16_t streamId;
|
|
u_int16_t sequence;
|
|
u_int32_t payloadtype;
|
|
};
|
|
|
|
struct sctpUnifiedDatagram{
|
|
struct sctpChunkDesc uh;
|
|
struct sctpDataPart dp;
|
|
};
|
|
|
|
struct sctpECN_echo{
|
|
struct sctpChunkDesc uh;
|
|
u_int32_t Lowest_TSN;
|
|
};
|
|
|
|
|
|
struct sctpCWR{
|
|
struct sctpChunkDesc uh;
|
|
u_int32_t TSN_reduced_at;
|
|
};
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|