+/* 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[] = {
projects / tcpdump / blobdiff