Import tcpdump 3.7.1, from

 http://www.tcpdump.org/release/tcpdump-3.7.1.tar.gz

1 files changed, 351 insertions, 0 deletions

diff --git a/contrib/tcpdump/print-sctp.c b/contrib/tcpdump/print-sctp.c
new file mode 100644
index 0000000..8bf45ca
--- /dev/null
+++ b/contrib/tcpdump/print-sctp.c
@@ -0,0 +1,351 @@
+/* Copyright (c) 2001 NETLAB, Temple University
+ * Copyright (c) 2001 Protocol Engineering Lab, University of Delaware
+ *
+ * Jerry Heinz <gheinz@astro.temple.edu>
+ * John Fiore <jfiore@joda.cis.temple.edu>
+ * Armando L. Caro Jr. <acaro@cis.udel.edu>
+ *
+ * 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 the University nor of the Laboratory 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.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+"@(#) $Header: /tcpdump/master/tcpdump/print-sctp.c,v 1.7 2001/12/12 07:16:40 guy Exp $ (NETLAB/PEL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+
+#include <unistd.h>
+#include "sctpHeader.h"
+#include "sctpConstants.h"
+#include <assert.h>
+
+#include <netinet/in.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"			/* must come after interface.h */
+#include "ip.h"
+#ifdef INET6
+#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 */
+{ 
+  const struct sctpHeader *sctpPktHdr;
+  const struct ip *ip;
+#ifdef INET6
+  const struct ip6_hdr *ip6;
+#endif
+  const u_char *cp;
+  void *endPacketPtr;
+  u_short sourcePort, destPort;
+  int chunkCount;
+  struct sctpChunkDesc *chunkDescPtr;
+  void *nextChunk;
+
+  sctpPktHdr = (struct sctpHeader*) bp;
+  endPacketPtr = ((u_char*)((u_char*)sctpPktHdr+sctpPacketLength));
+  
+  if( (u_long) endPacketPtr > (u_long) snapend)
+    endPacketPtr = (void *) snapend;
+  ip = (struct ip *)bp2;
+#ifdef INET6
+  if (IP_V(ip) == 6)
+    ip6 = (struct ip6_hdr *)bp2;
+  else
+    ip6 = NULL;
+#endif /*INET6*/
+  cp = (u_char *)(sctpPktHdr + 1);
+  if (cp > snapend)
+    { 
+      printf("[|sctp]");
+      return; 
+    } 
+
+  if (sctpPacketLength < sizeof(struct sctpHeader)) 
+    {
+      (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) {
+      (void)printf("%s.%d > %s.%d: sctp",
+        ip6addr_string(&ip6->ip6_src),
+        sourcePort,
+        ip6addr_string(&ip6->ip6_dst),
+        destPort);
+    } else {
+      (void)printf("%d > %d: sctp",
+        sourcePort, destPort);
+    }
+  } else
+#endif /*INET6*/
+  {
+    if (ip->ip_p == IPPROTO_SCTP) {
+      (void)printf("%s.%d > %s.%d: sctp",
+        ipaddr_string(&ip->ip_src),
+        sourcePort,
+        ipaddr_string(&ip->ip_dst),
+        destPort);
+    } else {
+      (void)printf("%d > %d: sctp",
+        sourcePort, destPort);
+    }
+  }
+  fflush(stdout);
+
+  if (vflag < 2)
+	return;
+  
+  /* cycle through all chunks, printing information on each one */
+  for (chunkCount = 0, 
+	 chunkDescPtr = (struct sctpChunkDesc *) ( (u_char*) sctpPktHdr +
+						   sizeof(struct sctpHeader));
+       chunkDescPtr != NULL &&
+	 ( (void *)  ((u_char *) chunkDescPtr + sizeof(struct sctpChunkDesc))
+	   <= endPacketPtr);
+       
+       chunkDescPtr = (struct sctpChunkDesc *) nextChunk, chunkCount++)
+    {
+      u_short align;
+      u_char *chunkEnd;
+      
+      chunkEnd = ((u_char*)chunkDescPtr + ntohs(chunkDescPtr->chunkLength));
+      
+      align=ntohs(chunkDescPtr->chunkLength) % 4;
+      if (align != 0)
+	align = 4 - align;
+
+      nextChunk = (void *) (chunkEnd + align);
+
+      printf("\n\t%d) ", chunkCount+1);
+      switch (chunkDescPtr->chunkID)
+	{
+	case SCTP_DATA :
+	  {
+	    struct sctpDataPart *dataHdrPtr;
+	    
+	    printf("[DATA] ");
+	    
+	    if ((chunkDescPtr->chunkFlg & SCTP_DATA_UNORDERED) 
+		== SCTP_DATA_UNORDERED)
+	      printf("(U)");
+
+	    if ((chunkDescPtr->chunkFlg & SCTP_DATA_FIRST_FRAG) 
+		== SCTP_DATA_FIRST_FRAG)
+	      printf("(B)");
+	    
+	    if ((chunkDescPtr->chunkFlg & SCTP_DATA_LAST_FRAG) 
+		== SCTP_DATA_LAST_FRAG)
+	      printf("(E)");
+
+	    if( ((chunkDescPtr->chunkFlg & SCTP_DATA_UNORDERED) 
+		 == SCTP_DATA_UNORDERED) 
+		||
+		((chunkDescPtr->chunkFlg & SCTP_DATA_FIRST_FRAG) 
+		 == SCTP_DATA_FIRST_FRAG)
+		||
+		((chunkDescPtr->chunkFlg & SCTP_DATA_LAST_FRAG) 
+		 == SCTP_DATA_LAST_FRAG) )
+	      printf(" ");
+
+	    dataHdrPtr=(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));
+	    printf("[PPID 0x%x] ", (u_int32_t)ntohl(dataHdrPtr->payloadtype));
+	    fflush(stdout);
+
+	    if (vflag)		/* if verbose output is specified */
+	      {		           /* at the command line */
+		char *payloadPtr;
+		
+		printf("[Payload");
+
+		if (!xflag && !qflag) {
+			payloadPtr = (char *) (++dataHdrPtr);
+			printf(":");
+			default_print(payloadPtr,
+			      htons(chunkDescPtr->chunkLength)-1 -
+			      sizeof(struct sctpDataPart)-sizeof(struct sctpChunkDesc));
+		} else
+			printf("]");
+	      }
+	    break;
+	  }
+	case SCTP_INITIATION :
+	  {
+	    struct sctpInitiation *init;
+
+	    printf("[INIT] ");
+	    init=(struct sctpInitiation*)(chunkDescPtr+1);
+	    printf("[init tag: %u] ", (u_int32_t)ntohl(init->initTag));
+	    printf("[rwnd: %u] ", (u_int32_t)ntohl(init->rcvWindowCredit));
+	    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",
+		     "Optional params present, but not printed.");
+#endif
+	    break;
+	  }
+	case SCTP_INITIATION_ACK :
+	  {
+	    struct sctpInitiation *init;
+	    
+	    printf("[INIT ACK] ");
+	    init=(struct sctpInitiation*)(chunkDescPtr+1);
+	    printf("[init tag: %u] ", (u_int32_t)ntohl(init->initTag));
+	    printf("[rwnd: %u] ", (u_int32_t)ntohl(init->rcvWindowCredit));
+	    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",
+		     "Optional params present, but not printed.");
+#endif
+	    break;
+	  }
+	case SCTP_SELECTIVE_ACK:
+	  {
+	    struct sctpSelectiveAck *sack;
+	    struct sctpSelectiveFrag *frag; 
+	    int fragNo, tsnNo;
+	    u_long *dupTSN;
+
+	    printf("[SACK] ");
+	    sack=(struct sctpSelectiveAck*)(chunkDescPtr+1);
+	    printf("[cum ack %u] ", (u_int32_t)ntohl(sack->highestConseqTSN));
+	    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 = ( (struct sctpSelectiveFrag *)
+			  ((struct sctpSelectiveAck *) sack+1)),
+		   fragNo=0;
+		 (void *)frag < nextChunk && fragNo < ntohs(sack->numberOfdesc);
+		 frag++, fragNo++)
+	      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 = (u_long*)frag, tsnNo=0; 
+		 (void *) dupTSN < nextChunk && tsnNo<ntohs(sack->numDupTsns);
+		 dupTSN++, tsnNo++)
+	      printf("\n\t\t[dup TSN #%u: %u] ", tsnNo+1,
+	          (u_int32_t)ntohl(*dupTSN));
+
+	    break;
+	  }
+	case SCTP_HEARTBEAT_REQUEST :
+	  {
+	    struct sctpHBsender *hb;
+
+	    hb=(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;
+	}
+    }
+}