X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/d022b3377f494e0a78062806359ba0071b6b87ee..refs/pull/433/head:/print-sctp.c diff --git a/print-sctp.c b/print-sctp.c index b18ab793..4b595f2e 100644 --- a/print-sctp.c +++ b/print-sctp.c @@ -33,24 +33,13 @@ * SUCH DAMAGE. */ -#ifndef lint -static const char rcsid[] _U_ = -"@(#) $Header: /tcpdump/master/tcpdump/print-sctp.c,v 1.19 2005-05-06 10:53:01 guy Exp $ (NETLAB/PEL)"; -#endif - +#define NETDISSECT_REWORKED #ifdef HAVE_CONFIG_H #include "config.h" #endif #include -#include "sctpHeader.h" -#include "sctpConstants.h" -#include - -#include -#include - #include "interface.h" #include "addrtoname.h" #include "extract.h" /* must come after interface.h */ @@ -59,9 +48,453 @@ static const char rcsid[] _U_ = #include "ip6.h" #endif -void sctp_print(const u_char *bp, /* beginning of sctp packet */ - const u_char *bp2, /* beginning of enclosing */ - u_int sctpPacketLength) /* ip packet */ +/* Definitions from: + * + * 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. + * + * 3. 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. + */ + +/* The valid defines for all message + * types know to SCTP. 0 is reserved + */ +#define SCTP_DATA 0x00 +#define SCTP_INITIATION 0x01 +#define SCTP_INITIATION_ACK 0x02 +#define SCTP_SELECTIVE_ACK 0x03 +#define SCTP_HEARTBEAT_REQUEST 0x04 +#define SCTP_HEARTBEAT_ACK 0x05 +#define SCTP_ABORT_ASSOCIATION 0x06 +#define SCTP_SHUTDOWN 0x07 +#define SCTP_SHUTDOWN_ACK 0x08 +#define SCTP_OPERATION_ERR 0x09 +#define SCTP_COOKIE_ECHO 0x0a +#define SCTP_COOKIE_ACK 0x0b +#define SCTP_ECN_ECHO 0x0c +#define SCTP_ECN_CWR 0x0d +#define SCTP_SHUTDOWN_COMPLETE 0x0e +#define SCTP_FORWARD_CUM_TSN 0xc0 +#define SCTP_RELIABLE_CNTL 0xc1 +#define SCTP_RELIABLE_CNTL_ACK 0xc2 + +static const struct tok sctp_chunkid_str[] = { + { SCTP_DATA, "DATA" }, + { SCTP_INITIATION, "INIT" }, + { SCTP_INITIATION_ACK, "INIT ACK" }, + { SCTP_SELECTIVE_ACK, "SACK" }, + { SCTP_HEARTBEAT_REQUEST, "HB REQ" }, + { SCTP_HEARTBEAT_ACK, "HB ACK" }, + { SCTP_ABORT_ASSOCIATION, "ABORT" }, + { SCTP_SHUTDOWN, "SHUTDOWN" }, + { SCTP_SHUTDOWN_ACK, "SHUTDOWN ACK" }, + { SCTP_OPERATION_ERR, "OP ERR" }, + { SCTP_COOKIE_ECHO, "COOKIE ECHO" }, + { SCTP_COOKIE_ACK, "COOKIE ACK" }, + { SCTP_ECN_ECHO, "ECN ECHO" }, + { SCTP_ECN_CWR, "ECN CWR" }, + { SCTP_SHUTDOWN_COMPLETE, "SHUTDOWN COMPLETE" }, + { SCTP_FORWARD_CUM_TSN, "FOR CUM TSN" }, + { SCTP_RELIABLE_CNTL, "REL CTRL" }, + { SCTP_RELIABLE_CNTL_ACK, "REL CTRL ACK" }, + { 0, NULL } +}; + +/* Data Chuck Specific Flags */ +#define SCTP_DATA_FRAG_MASK 0x03 +#define SCTP_DATA_MIDDLE_FRAG 0x00 +#define SCTP_DATA_LAST_FRAG 0x01 +#define SCTP_DATA_FIRST_FRAG 0x02 +#define SCTP_DATA_NOT_FRAG 0x03 +#define SCTP_DATA_UNORDERED 0x04 + +#define SCTP_ADDRMAX 60 + +#define CHAN_HP 6704 +#define CHAN_MP 6705 +#define CHAN_LP 6706 + +/* the sctp common header */ + +struct sctpHeader{ + uint16_t source; + uint16_t destination; + uint32_t verificationTag; + uint32_t adler32; +}; + +/* various descriptor parsers */ + +struct sctpChunkDesc{ + uint8_t chunkID; + uint8_t chunkFlg; + uint16_t chunkLength; +}; + +struct sctpParamDesc{ + uint16_t paramType; + uint16_t paramLength; +}; + + +struct sctpRelChunkDesc{ + struct sctpChunkDesc chk; + uint32_t serialNumber; +}; + +struct sctpVendorSpecificParam { + struct sctpParamDesc p; /* type must be 0xfffe */ + uint32_t vendorId; /* vendor ID from RFC 1700 */ + uint16_t vendorSpecificType; + uint16_t vendorSpecificLen; +}; + + +/* Structures for the control parts */ + + + +/* Sctp association init request/ack */ + +/* this is used for init ack, too */ +struct sctpInitiation{ + uint32_t initTag; /* tag of mine */ + uint32_t rcvWindowCredit; /* rwnd */ + uint16_t NumPreopenStreams; /* OS */ + uint16_t MaxInboundStreams; /* MIS */ + uint32_t initialTSN; + /* optional param's follow in sctpParamDesc form */ +}; + +struct sctpV4IpAddress{ + struct sctpParamDesc p; /* type is set to SCTP_IPV4_PARAM_TYPE, len=10 */ + uint32_t ipAddress; +}; + + +struct sctpV6IpAddress{ + struct sctpParamDesc p; /* type is set to SCTP_IPV6_PARAM_TYPE, len=22 */ + uint8_t ipAddress[16]; +}; + +struct sctpDNSName{ + struct sctpParamDesc param; + uint8_t name[1]; +}; + + +struct sctpCookiePreserve{ + struct sctpParamDesc p; /* type is set to SCTP_COOKIE_PRESERVE, len=8 */ + uint32_t extraTime; +}; + + +struct sctpTimeStamp{ + uint32_t ts_sec; + uint32_t ts_usec; +}; + +/* wire structure of my cookie */ +struct cookieMessage{ + uint32_t TieTag_curTag; /* copied from assoc if present */ + uint32_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 */ + uint32_t addressWhereISent[4]; /* I make this 4 ints so I get 128bits for future */ + int32_t addrtype; /* address type */ + uint16_t locScope; /* V6 local scope flag */ + uint16_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{ + uint32_t highestConseqTSN; + uint32_t updatedRwnd; + uint16_t numberOfdesc; + uint16_t numDupTsns; +}; + +struct sctpSelectiveFrag{ + uint16_t fragmentStart; + uint16_t fragmentEnd; +}; + + +struct sctpUnifiedSack{ + struct sctpChunkDesc uh; + struct sctpSelectiveAck sack; +}; + +/* for both RTT request/response the + * following is sent + */ + +struct sctpHBrequest { + uint32_t time_value_1; + uint32_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]; + uint16_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; + uint16_t causeCode; + uint16_t causeLen; +}; + +/* For the graceful shutdown we must carry + * the tag (in common header) and the highest consequitive acking value + */ +struct sctpShutdown { + uint32_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{ + uint16_t cause; + uint16_t causeLen; +}; + +struct sctpUnifiedOpError{ + struct sctpChunkDesc uh; + struct sctpOpErrorCause c; +}; + +struct sctpUnifiedStreamError{ + struct sctpHeader mh; + struct sctpChunkDesc uh; + struct sctpOpErrorCause c; + uint16_t strmNum; + uint16_t reserved; +}; + +struct staleCookieMsg{ + struct sctpHeader mh; + struct sctpChunkDesc uh; + struct sctpOpErrorCause c; + uint32_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{ + uint32_t TSN; + uint16_t streamId; + uint16_t sequence; + uint32_t payloadtype; +}; + +struct sctpUnifiedDatagram{ + struct sctpChunkDesc uh; + struct sctpDataPart dp; +}; + +struct sctpECN_echo{ + struct sctpChunkDesc uh; + uint32_t Lowest_TSN; +}; + + +struct sctpCWR{ + struct sctpChunkDesc uh; + uint32_t TSN_reduced_at; +}; + +static const struct tok ForCES_channels[] = { + { CHAN_HP, "ForCES HP" }, + { CHAN_MP, "ForCES MP" }, + { CHAN_LP, "ForCES LP" }, + { 0, NULL } +}; + +/* data chunk's payload protocol identifiers */ + +#define SCTP_PPID_IUA 1 +#define SCTP_PPID_M2UA 2 +#define SCTP_PPID_M3UA 3 +#define SCTP_PPID_SUA 4 +#define SCTP_PPID_M2PA 5 +#define SCTP_PPID_V5UA 6 +#define SCTP_PPID_H248 7 +#define SCTP_PPID_BICC 8 +#define SCTP_PPID_TALI 9 +#define SCTP_PPID_DUA 10 +#define SCTP_PPID_ASAP 11 +#define SCTP_PPID_ENRP 12 +#define SCTP_PPID_H323 13 +#define SCTP_PPID_QIPC 14 +#define SCTP_PPID_SIMCO 15 +#define SCTP_PPID_DDPSC 16 +#define SCTP_PPID_DDPSSC 17 +#define SCTP_PPID_S1AP 18 +#define SCTP_PPID_RUA 19 +#define SCTP_PPID_HNBAP 20 +#define SCTP_PPID_FORCES_HP 21 +#define SCTP_PPID_FORCES_MP 22 +#define SCTP_PPID_FORCES_LP 23 +#define SCTP_PPID_SBC_AP 24 +#define SCTP_PPID_NBAP 25 +/* 26 */ +#define SCTP_PPID_X2AP 27 + +static const struct tok PayloadProto_idents[] = { + { SCTP_PPID_IUA, "ISDN Q.921" }, + { SCTP_PPID_M2UA, "M2UA" }, + { SCTP_PPID_M3UA, "M3UA" }, + { SCTP_PPID_SUA, "SUA" }, + { SCTP_PPID_M2PA, "M2PA" }, + { SCTP_PPID_V5UA, "V5.2" }, + { SCTP_PPID_H248, "H.248" }, + { SCTP_PPID_BICC, "BICC" }, + { SCTP_PPID_TALI, "TALI" }, + { SCTP_PPID_DUA, "DUA" }, + { SCTP_PPID_ASAP, "ASAP" }, + { SCTP_PPID_ENRP, "ENRP" }, + { SCTP_PPID_H323, "H.323" }, + { SCTP_PPID_QIPC, "Q.IPC" }, + { SCTP_PPID_SIMCO, "SIMCO" }, + { SCTP_PPID_DDPSC, "DDPSC" }, + { SCTP_PPID_DDPSSC, "DDPSSC" }, + { SCTP_PPID_S1AP, "S1AP" }, + { SCTP_PPID_RUA, "RUA" }, + { SCTP_PPID_HNBAP, "HNBAP" }, + { SCTP_PPID_FORCES_HP, "ForCES HP" }, + { SCTP_PPID_FORCES_MP, "ForCES MP" }, + { SCTP_PPID_FORCES_LP, "ForCES LP" }, + { SCTP_PPID_SBC_AP, "SBc-AP" }, + { SCTP_PPID_NBAP, "NBAP" }, + /* 26 */ + { SCTP_PPID_X2AP, "X2AP" }, + { 0, NULL } +}; + + +static inline int isForCES_port(u_short Port) +{ + if (Port == CHAN_HP) + return 1; + if (Port == CHAN_MP) + return 1; + if (Port == CHAN_LP) + return 1; + + return 0; +} + +void sctp_print(netdissect_options *ndo, + const u_char *bp, /* beginning of sctp packet */ + const u_char *bp2, /* beginning of enclosing */ + u_int sctpPacketLength) /* ip packet */ { const struct sctpHeader *sctpPktHdr; const struct ip *ip; @@ -74,12 +507,14 @@ void sctp_print(const u_char *bp, /* beginning of sctp packet */ const struct sctpChunkDesc *chunkDescPtr; const void *nextChunk; const char *sep; + int isforces = 0; + sctpPktHdr = (const struct sctpHeader*) bp; endPacketPtr = (const u_char*)sctpPktHdr+sctpPacketLength; - if( (u_long) endPacketPtr > (u_long) snapend) - endPacketPtr = (const void *) snapend; + if( (u_long) endPacketPtr > (u_long) ndo->ndo_snapend) + endPacketPtr = (const void *) ndo->ndo_snapend; ip = (struct ip *)bp2; #ifdef INET6 if (IP_V(ip) == 6) @@ -87,12 +522,12 @@ void sctp_print(const u_char *bp, /* beginning of sctp packet */ else ip6 = NULL; #endif /*INET6*/ - TCHECK(*sctpPktHdr); + ND_TCHECK(*sctpPktHdr); if (sctpPacketLength < sizeof(struct sctpHeader)) { - (void)printf("truncated-sctp - %ld bytes missing!", - (long)sctpPacketLength-sizeof(struct sctpHeader)); + ND_PRINT((ndo, "truncated-sctp - %ld bytes missing!", + (long)sctpPacketLength-sizeof(struct sctpHeader))); return; } @@ -104,23 +539,31 @@ void sctp_print(const u_char *bp, /* beginning of sctp packet */ #ifdef INET6 if (ip6) { - (void)printf("%s.%d > %s.%d: sctp", - ip6addr_string(&ip6->ip6_src), + ND_PRINT((ndo, "%s.%d > %s.%d: sctp", + ip6addr_string(ndo, &ip6->ip6_src), sourcePort, - ip6addr_string(&ip6->ip6_dst), - destPort); + ip6addr_string(ndo, &ip6->ip6_dst), + destPort)); } else #endif /*INET6*/ { - (void)printf("%s.%d > %s.%d: sctp", - ipaddr_string(&ip->ip_src), + ND_PRINT((ndo, "%s.%d > %s.%d: sctp", + ipaddr_string(ndo, &ip->ip_src), sourcePort, - ipaddr_string(&ip->ip_dst), - destPort); + ipaddr_string(ndo, &ip->ip_dst), + destPort)); + } + + if (isForCES_port(sourcePort)) { + ND_PRINT((ndo, "[%s]", tok2str(ForCES_channels, NULL, sourcePort))); + isforces = 1; + } + if (isForCES_port(destPort)) { + ND_PRINT((ndo, "[%s]", tok2str(ForCES_channels, NULL, destPort))); + isforces = 1; } - fflush(stdout); - if (vflag >= 2) + if (ndo->ndo_vflag >= 2) sep = "\n\t"; else sep = " ("; @@ -135,18 +578,18 @@ void sctp_print(const u_char *bp, /* beginning of sctp packet */ chunkDescPtr = (const struct sctpChunkDesc *) nextChunk, chunkCount++) { - u_int16_t chunkLength; + uint16_t chunkLength; const u_char *chunkEnd; - u_int16_t align; + uint16_t align; - TCHECK(*chunkDescPtr); + ND_TCHECK(*chunkDescPtr); chunkLength = EXTRACT_16BITS(&chunkDescPtr->chunkLength); if (chunkLength < sizeof(*chunkDescPtr)) { - printf("%s%d) [Bad chunk length %u]", sep, chunkCount+1, chunkLength); - break; + ND_PRINT((ndo, "%s%d) [Bad chunk length %u]", sep, chunkCount+1, chunkLength)); + break; } - TCHECK2(*((u_int8_t *)chunkDescPtr), chunkLength); + ND_TCHECK2(*((uint8_t *)chunkDescPtr), chunkLength); chunkEnd = ((const u_char*)chunkDescPtr + chunkLength); align=chunkLength % 4; @@ -155,26 +598,29 @@ void sctp_print(const u_char *bp, /* beginning of sctp packet */ nextChunk = (const void *) (chunkEnd + align); - printf("%s%d) ", sep, chunkCount+1); + ND_PRINT((ndo, "%s%d) ", sep, chunkCount+1)); + ND_PRINT((ndo, "[%s] ", tok2str(sctp_chunkid_str, "Unknown chunk type: 0x%x", + chunkDescPtr->chunkID))); switch (chunkDescPtr->chunkID) { case SCTP_DATA : { const struct sctpDataPart *dataHdrPtr; - - printf("[DATA] "); + uint32_t ppid; + const u_char *payloadPtr; + u_int payload_size; if ((chunkDescPtr->chunkFlg & SCTP_DATA_UNORDERED) == SCTP_DATA_UNORDERED) - printf("(U)"); + ND_PRINT((ndo, "(U)")); if ((chunkDescPtr->chunkFlg & SCTP_DATA_FIRST_FRAG) == SCTP_DATA_FIRST_FRAG) - printf("(B)"); + ND_PRINT((ndo, "(B)")); if ((chunkDescPtr->chunkFlg & SCTP_DATA_LAST_FRAG) == SCTP_DATA_LAST_FRAG) - printf("(E)"); + ND_PRINT((ndo, "(E)")); if( ((chunkDescPtr->chunkFlg & SCTP_DATA_UNORDERED) == SCTP_DATA_UNORDERED) @@ -184,57 +630,68 @@ void sctp_print(const u_char *bp, /* beginning of sctp packet */ || ((chunkDescPtr->chunkFlg & SCTP_DATA_LAST_FRAG) == SCTP_DATA_LAST_FRAG) ) - printf(" "); + ND_PRINT((ndo, " ")); dataHdrPtr=(const struct sctpDataPart*)(chunkDescPtr+1); - printf("[TSN: %u] ", EXTRACT_32BITS(&dataHdrPtr->TSN)); - printf("[SID: %u] ", EXTRACT_16BITS(&dataHdrPtr->streamId)); - printf("[SSEQ %u] ", EXTRACT_16BITS(&dataHdrPtr->sequence)); - printf("[PPID 0x%x] ", EXTRACT_32BITS(&dataHdrPtr->payloadtype)); - fflush(stdout); - - if (vflag >= 2) /* if verbose output is specified */ - { /* at the command line */ - const u_char *payloadPtr; - - printf("[Payload"); - - if (!xflag && !qflag) { - payloadPtr = (const u_char *) (++dataHdrPtr); - printf(":"); - if (htons(chunkDescPtr->chunkLength) < - sizeof(struct sctpDataPart)+ - sizeof(struct sctpChunkDesc)+1) { - printf("bogus chunk length %u]", - htons(chunkDescPtr->chunkLength)); - return; + ppid = EXTRACT_32BITS(&dataHdrPtr->payloadtype); + ND_PRINT((ndo, "[TSN: %u] ", EXTRACT_32BITS(&dataHdrPtr->TSN))); + ND_PRINT((ndo, "[SID: %u] ", EXTRACT_16BITS(&dataHdrPtr->streamId))); + ND_PRINT((ndo, "[SSEQ %u] ", EXTRACT_16BITS(&dataHdrPtr->sequence))); + ND_PRINT((ndo, "[PPID %s] ", + tok2str(PayloadProto_idents, "0x%x", ppid))); + + if (!isforces) { + isforces = (ppid == SCTP_PPID_FORCES_HP) || + (ppid == SCTP_PPID_FORCES_MP) || + (ppid == SCTP_PPID_FORCES_LP); + } + + payloadPtr = (const u_char *) (dataHdrPtr + 1); + if (EXTRACT_16BITS(&chunkDescPtr->chunkLength) < + sizeof(struct sctpDataPart) + sizeof(struct sctpChunkDesc) + 1) { + ND_PRINT((ndo, "bogus chunk length %u]", EXTRACT_16BITS(&chunkDescPtr->chunkLength))); + return; + } + + payload_size = EXTRACT_16BITS(&chunkDescPtr->chunkLength) - + (sizeof(struct sctpDataPart) + sizeof(struct sctpChunkDesc)); + + if (isforces) { + forces_print(ndo, payloadPtr, payload_size); + } else if (ndo->ndo_vflag >= 2) { /* if verbose output is specified */ + /* at the command line */ + switch (ppid) { + case SCTP_PPID_M3UA : + m3ua_print(ndo, payloadPtr, payload_size); + break; + default: + ND_PRINT((ndo, "[Payload")); + if (!ndo->ndo_suppress_default_print) { + ND_PRINT((ndo, ":")); + ND_DEFAULTPRINT(payloadPtr, payload_size); } - default_print(payloadPtr, - htons(chunkDescPtr->chunkLength) - - (sizeof(struct sctpDataPart)+ - sizeof(struct sctpChunkDesc)+1)); - } else - printf("]"); - } + ND_PRINT((ndo, "]")); + break; + } + } break; } case SCTP_INITIATION : { const struct sctpInitiation *init; - printf("[INIT] "); init=(const struct sctpInitiation*)(chunkDescPtr+1); - printf("[init tag: %u] ", EXTRACT_32BITS(&init->initTag)); - printf("[rwnd: %u] ", EXTRACT_32BITS(&init->rcvWindowCredit)); - printf("[OS: %u] ", EXTRACT_16BITS(&init->NumPreopenStreams)); - printf("[MIS: %u] ", EXTRACT_16BITS(&init->MaxInboundStreams)); - printf("[init TSN: %u] ", EXTRACT_32BITS(&init->initialTSN)); + ND_PRINT((ndo, "[init tag: %u] ", EXTRACT_32BITS(&init->initTag))); + ND_PRINT((ndo, "[rwnd: %u] ", EXTRACT_32BITS(&init->rcvWindowCredit))); + ND_PRINT((ndo, "[OS: %u] ", EXTRACT_16BITS(&init->NumPreopenStreams))); + ND_PRINT((ndo, "[MIS: %u] ", EXTRACT_16BITS(&init->MaxInboundStreams))); + ND_PRINT((ndo, "[init TSN: %u] ", EXTRACT_32BITS(&init->initialTSN))); #if(0) /* ALC you can add code for optional params here */ if( (init+1) < chunkEnd ) - printf(" @@@@@ UNFINISHED @@@@@@%s\n", - "Optional params present, but not printed."); + ND_PRINT((ndo, " @@@@@ UNFINISHED @@@@@@%s\n", + "Optional params present, but not printed.")); #endif break; } @@ -242,18 +699,17 @@ void sctp_print(const u_char *bp, /* beginning of sctp packet */ { const struct sctpInitiation *init; - printf("[INIT ACK] "); init=(const struct sctpInitiation*)(chunkDescPtr+1); - printf("[init tag: %u] ", EXTRACT_32BITS(&init->initTag)); - printf("[rwnd: %u] ", EXTRACT_32BITS(&init->rcvWindowCredit)); - printf("[OS: %u] ", EXTRACT_16BITS(&init->NumPreopenStreams)); - printf("[MIS: %u] ", EXTRACT_16BITS(&init->MaxInboundStreams)); - printf("[init TSN: %u] ", EXTRACT_32BITS(&init->initialTSN)); + ND_PRINT((ndo, "[init tag: %u] ", EXTRACT_32BITS(&init->initTag))); + ND_PRINT((ndo, "[rwnd: %u] ", EXTRACT_32BITS(&init->rcvWindowCredit))); + ND_PRINT((ndo, "[OS: %u] ", EXTRACT_16BITS(&init->NumPreopenStreams))); + ND_PRINT((ndo, "[MIS: %u] ", EXTRACT_16BITS(&init->MaxInboundStreams))); + ND_PRINT((ndo, "[init TSN: %u] ", EXTRACT_32BITS(&init->initialTSN))); #if(0) /* ALC you can add code for optional params here */ if( (init+1) < chunkEnd ) - printf(" @@@@@ UNFINISHED @@@@@@%s\n", - "Optional params present, but not printed."); + ND_PRINT((ndo, " @@@@@ UNFINISHED @@@@@@%s\n", + "Optional params present, but not printed.")); #endif break; } @@ -264,12 +720,11 @@ void sctp_print(const u_char *bp, /* beginning of sctp packet */ int fragNo, tsnNo; const u_char *dupTSN; - printf("[SACK] "); sack=(const struct sctpSelectiveAck*)(chunkDescPtr+1); - printf("[cum ack %u] ", EXTRACT_32BITS(&sack->highestConseqTSN)); - printf("[a_rwnd %u] ", EXTRACT_32BITS(&sack->updatedRwnd)); - printf("[#gap acks %u] ", EXTRACT_16BITS(&sack->numberOfdesc)); - printf("[#dup tsns %u] ", EXTRACT_16BITS(&sack->numDupTsns)); + ND_PRINT((ndo, "[cum ack %u] ", EXTRACT_32BITS(&sack->highestConseqTSN))); + ND_PRINT((ndo, "[a_rwnd %u] ", EXTRACT_32BITS(&sack->updatedRwnd))); + ND_PRINT((ndo, "[#gap acks %u] ", EXTRACT_16BITS(&sack->numberOfdesc))); + ND_PRINT((ndo, "[#dup tsns %u] ", EXTRACT_16BITS(&sack->numDupTsns))); /* print gaps */ @@ -278,81 +733,28 @@ void sctp_print(const u_char *bp, /* beginning of sctp packet */ fragNo=0; (const void *)frag < nextChunk && fragNo < EXTRACT_16BITS(&sack->numberOfdesc); frag++, fragNo++) - printf("\n\t\t[gap ack block #%d: start = %u, end = %u] ", + ND_PRINT((ndo, "\n\t\t[gap ack block #%d: start = %u, end = %u] ", fragNo+1, EXTRACT_32BITS(&sack->highestConseqTSN) + EXTRACT_16BITS(&frag->fragmentStart), - EXTRACT_32BITS(&sack->highestConseqTSN) + EXTRACT_16BITS(&frag->fragmentEnd)); + EXTRACT_32BITS(&sack->highestConseqTSN) + EXTRACT_16BITS(&frag->fragmentEnd))); /* print duplicate TSNs */ for (dupTSN = (const u_char *)frag, tsnNo=0; (const void *) dupTSN < nextChunk && tsnNonumDupTsns); dupTSN += 4, tsnNo++) - printf("\n\t\t[dup TSN #%u: %u] ", tsnNo+1, - EXTRACT_32BITS(dupTSN)); + ND_PRINT((ndo, "\n\t\t[dup TSN #%u: %u] ", tsnNo+1, + EXTRACT_32BITS(dupTSN))); break; } - case SCTP_HEARTBEAT_REQUEST : - { - const struct sctpHBsender *hb; - - hb=(const struct sctpHBsender*)chunkDescPtr; - - printf("[HB REQ] "); - - break; - } - case SCTP_HEARTBEAT_ACK : - printf("[HB ACK] "); - break; - case SCTP_ABORT_ASSOCIATION : - printf("[ABORT] "); - break; - case SCTP_SHUTDOWN : - printf("[SHUTDOWN] "); - break; - case SCTP_SHUTDOWN_ACK : - printf("[SHUTDOWN ACK] "); - break; - case SCTP_OPERATION_ERR : - printf("[OP ERR] "); - break; - case SCTP_COOKIE_ECHO : - printf("[COOKIE ECHO] "); - break; - case SCTP_COOKIE_ACK : - printf("[COOKIE ACK] "); - break; - case SCTP_ECN_ECHO : - printf("[ECN ECHO] "); - break; - case SCTP_ECN_CWR : - printf("[ECN CWR] "); - break; - case SCTP_SHUTDOWN_COMPLETE : - printf("[SHUTDOWN COMPLETE] "); - break; - case SCTP_FORWARD_CUM_TSN : - printf("[FOR CUM TSN] "); - break; - case SCTP_RELIABLE_CNTL : - printf("[REL CTRL] "); - break; - case SCTP_RELIABLE_CNTL_ACK : - printf("[REL CTRL ACK] "); - break; - default : - printf("[Unknown chunk type: 0x%x]", chunkDescPtr->chunkID); - return; } - if (vflag < 2) + if (ndo->ndo_vflag < 2) sep = ", ("; } return; trunc: - printf("[|sctp]"); - return; + ND_PRINT((ndo, "[|sctp]")); }