#ifndef lint
static const char rcsid[] =
-"@(#) $Header: /tcpdump/master/tcpdump/print-sctp.c,v 1.8 2002-04-25 04:45:59 guy Exp $ (NETLAB/PEL)";
+"@(#) $Header: /tcpdump/master/tcpdump/print-sctp.c,v 1.9 2002-06-11 17:08:56 itojun Exp $ (NETLAB/PEL)";
#endif
#ifdef HAVE_CONFIG_H
void sctp_print(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;
#ifdef INET6
sctpPktHdr = (const struct sctpHeader*) bp;
endPacketPtr = (const u_char*)sctpPktHdr+sctpPacketLength;
-
+
if( (u_long) endPacketPtr > (u_long) snapend)
endPacketPtr = (const void *) snapend;
ip = (struct ip *)bp2;
#endif /*INET6*/
cp = (const u_char *)(sctpPktHdr + 1);
if (cp > snapend)
- {
+ {
printf("[|sctp]");
- return;
- }
+ return;
+ }
- if (sctpPacketLength < sizeof(struct sctpHeader))
+ if (sctpPacketLength < sizeof(struct sctpHeader))
{
- (void)printf("truncated-sctp - %ld bytes missing!",
+ (void)printf("truncated-sctp - %ld bytes missing!",
(long)sctpPacketLength-sizeof(struct sctpHeader));
return;
}
-
+
/* sctpPacketLength -= sizeof(struct sctpHeader); packet length */
/* is now only as long as the payload */
sourcePort = ntohs(sctpPktHdr->source);
destPort = ntohs(sctpPktHdr->destination);
-
+
#ifdef INET6
if (ip6) {
if (ip6->ip6_nxt == IPPROTO_SCTP) {
if (vflag < 2)
return;
-
+
/* cycle through all chunks, printing information on each one */
- for (chunkCount = 0,
+ for (chunkCount = 0,
chunkDescPtr = (const struct sctpChunkDesc *)
((const u_char*) sctpPktHdr + sizeof(struct sctpHeader));
chunkDescPtr != NULL &&
( (const void *)
((const u_char *) chunkDescPtr + sizeof(struct sctpChunkDesc))
<= endPacketPtr);
-
+
chunkDescPtr = (const struct sctpChunkDesc *) nextChunk, chunkCount++)
{
u_short align;
const u_char *chunkEnd;
-
+
chunkEnd = ((const u_char*)chunkDescPtr + ntohs(chunkDescPtr->chunkLength));
-
+
align=ntohs(chunkDescPtr->chunkLength) % 4;
if (align != 0)
align = 4 - align;
case SCTP_DATA :
{
const struct sctpDataPart *dataHdrPtr;
-
+
printf("[DATA] ");
-
- if ((chunkDescPtr->chunkFlg & SCTP_DATA_UNORDERED)
+
+ if ((chunkDescPtr->chunkFlg & SCTP_DATA_UNORDERED)
== SCTP_DATA_UNORDERED)
printf("(U)");
- if ((chunkDescPtr->chunkFlg & SCTP_DATA_FIRST_FRAG)
+ if ((chunkDescPtr->chunkFlg & SCTP_DATA_FIRST_FRAG)
== SCTP_DATA_FIRST_FRAG)
printf("(B)");
-
- if ((chunkDescPtr->chunkFlg & SCTP_DATA_LAST_FRAG)
+
+ if ((chunkDescPtr->chunkFlg & SCTP_DATA_LAST_FRAG)
== SCTP_DATA_LAST_FRAG)
printf("(E)");
- if( ((chunkDescPtr->chunkFlg & SCTP_DATA_UNORDERED)
- == SCTP_DATA_UNORDERED)
+ if( ((chunkDescPtr->chunkFlg & SCTP_DATA_UNORDERED)
+ == SCTP_DATA_UNORDERED)
||
- ((chunkDescPtr->chunkFlg & SCTP_DATA_FIRST_FRAG)
+ ((chunkDescPtr->chunkFlg & SCTP_DATA_FIRST_FRAG)
== SCTP_DATA_FIRST_FRAG)
||
- ((chunkDescPtr->chunkFlg & SCTP_DATA_LAST_FRAG)
+ ((chunkDescPtr->chunkFlg & SCTP_DATA_LAST_FRAG)
== SCTP_DATA_LAST_FRAG) )
printf(" ");
dataHdrPtr=(const struct sctpDataPart*)(chunkDescPtr+1);
-
+
printf("[TSN: %u] ", (u_int32_t)ntohl(dataHdrPtr->TSN));
printf("[SID: %u] ", ntohs(dataHdrPtr->streamId));
printf("[SSEQ %u] ", ntohs(dataHdrPtr->sequence));
if (vflag) /* if verbose output is specified */
{ /* at the command line */
const u_char *payloadPtr;
-
+
printf("[Payload");
if (!xflag && !qflag) {
case SCTP_INITIATION_ACK :
{
const struct sctpInitiation *init;
-
+
printf("[INIT ACK] ");
init=(const struct sctpInitiation*)(chunkDescPtr+1);
printf("[init tag: %u] ", (u_int32_t)ntohl(init->initTag));
printf("[OS: %u] ", ntohs(init->NumPreopenStreams));
printf("[MIS: %u] ", ntohs(init->MaxInboundStreams));
printf("[init TSN: %u] ", (u_int32_t)ntohl(init->initialTSN));
-
+
#if(0) /* ALC you can add code for optional params here */
if( (init+1) < chunkEnd )
printf(" @@@@@ UNFINISHED @@@@@@%s\n",
case SCTP_SELECTIVE_ACK:
{
const struct sctpSelectiveAck *sack;
- const struct sctpSelectiveFrag *frag;
+ const struct sctpSelectiveFrag *frag;
int fragNo, tsnNo;
const u_long *dupTSN;
printf("[a_rwnd %u] ", (u_int32_t)ntohl(sack->updatedRwnd));
printf("[#gap acks %u] ", ntohs(sack->numberOfdesc));
printf("[#dup tsns %u] ", ntohs(sack->numDupTsns));
-
-
+
+
/* print gaps */
for (frag = ( (const struct sctpSelectiveFrag *)
((const struct sctpSelectiveAck *) sack+1)),
fragNo=0;
(const void *)frag < nextChunk && fragNo < ntohs(sack->numberOfdesc);
frag++, fragNo++)
- printf("\n\t\t[gap ack block #%d: start = %u, end = %u] ",
+ printf("\n\t\t[gap ack block #%d: start = %u, end = %u] ",
fragNo+1,
(u_int32_t)(ntohl(sack->highestConseqTSN) + ntohs(frag->fragmentStart)),
(u_int32_t)(ntohl(sack->highestConseqTSN) + ntohs(frag->fragmentEnd)));
-
+
/* print duplicate TSNs */
- for (dupTSN = (const u_long*)frag, tsnNo=0;
+ for (dupTSN = (const u_long*)frag, tsnNo=0;
(const void *) dupTSN < nextChunk && tsnNo<ntohs(sack->numDupTsns);
dupTSN++, tsnNo++)
printf("\n\t\t[dup TSN #%u: %u] ", tsnNo+1,
hb=(const struct sctpHBsender*)chunkDescPtr;
printf("[HB REQ] ");
-
+
break;
}
case SCTP_HEARTBEAT_ACK :
case SCTP_ECN_ECHO :
printf("[ECN ECHO] ");
break;
- case SCTP_ECN_CWR :
+ case SCTP_ECN_CWR :
printf("[ECN CWR] ");
break;
case SCTP_SHUTDOWN_COMPLETE :
projects / tcpdump / blobdiff