R1B
diff --git a/SCTP_CNL113830.tpd b/SCTP_CNL113830.tpd
new file mode 100644
index 0000000..d5e3692
--- /dev/null
+++ b/SCTP_CNL113830.tpd
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<TITAN_Project_File_Information version="1.0">
+ <ProjectName>SCTP_CNL113830</ProjectName>
+ <Files>
+ <FileResource projectRelativePath="SCTP_EncDec.cc" relativeURI="src/SCTP_EncDec.cc"/>
+ <FileResource projectRelativePath="SCTP_Types.ttcn" relativeURI="src/SCTP_Types.ttcn"/>
+ </Files>
+ <ActiveConfiguration>Default</ActiveConfiguration>
+ <Configurations>
+ <Configuration name="Default">
+ <ProjectProperties>
+ <MakefileSettings>
+ <GNUMake>true</GNUMake>
+ <incrementalDependencyRefresh>true</incrementalDependencyRefresh>
+ <targetExecutable>bin/SCTP_CNL113830</targetExecutable>
+ </MakefileSettings>
+ <LocalBuildSettings>
+ <workingDirectory>bin</workingDirectory>
+ </LocalBuildSettings>
+ </ProjectProperties>
+ </Configuration>
+ </Configurations>
+</TITAN_Project_File_Information>
\ No newline at end of file
diff --git a/src/SCTP_EncDec.cc b/src/SCTP_EncDec.cc
new file mode 100644
index 0000000..a79330f
--- /dev/null
+++ b/src/SCTP_EncDec.cc
@@ -0,0 +1,199 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2000-2016 Ericsson Telecom AB
+//
+// All rights reserved. This program and the accompanying materials
+// are made available under the terms of the Eclipse Public License v1.0
+// which accompanies this distribution, and is available at
+// http://www.eclipse.org/legal/epl-v10.html
+///////////////////////////////////////////////////////////////////////////////
+//
+// File: SCTP_EncDec.cc
+// Description: Encoder/decoder for SCTP messages
+// Rev: R1B
+// Prodnr: CNL 113 830
+// Reference: RFC4690
+
+#include "SCTP_Types.hh"
+#include <stdint.h>
+
+static const uint32_t crc_table[256] =
+ {
+ 0x00000000L, 0xF26B8303L, 0xE13B70F7L, 0x1350F3F4L,
+ 0xC79A971FL, 0x35F1141CL, 0x26A1E7E8L, 0xD4CA64EBL,
+ 0x8AD958CFL, 0x78B2DBCCL, 0x6BE22838L, 0x9989AB3BL,
+ 0x4D43CFD0L, 0xBF284CD3L, 0xAC78BF27L, 0x5E133C24L,
+ 0x105EC76FL, 0xE235446CL, 0xF165B798L, 0x030E349BL,
+ 0xD7C45070L, 0x25AFD373L, 0x36FF2087L, 0xC494A384L,
+ 0x9A879FA0L, 0x68EC1CA3L, 0x7BBCEF57L, 0x89D76C54L,
+ 0x5D1D08BFL, 0xAF768BBCL, 0xBC267848L, 0x4E4DFB4BL,
+ 0x20BD8EDEL, 0xD2D60DDDL, 0xC186FE29L, 0x33ED7D2AL,
+ 0xE72719C1L, 0x154C9AC2L, 0x061C6936L, 0xF477EA35L,
+ 0xAA64D611L, 0x580F5512L, 0x4B5FA6E6L, 0xB93425E5L,
+ 0x6DFE410EL, 0x9F95C20DL, 0x8CC531F9L, 0x7EAEB2FAL,
+ 0x30E349B1L, 0xC288CAB2L, 0xD1D83946L, 0x23B3BA45L,
+ 0xF779DEAEL, 0x05125DADL, 0x1642AE59L, 0xE4292D5AL,
+ 0xBA3A117EL, 0x4851927DL, 0x5B016189L, 0xA96AE28AL,
+ 0x7DA08661L, 0x8FCB0562L, 0x9C9BF696L, 0x6EF07595L,
+ 0x417B1DBCL, 0xB3109EBFL, 0xA0406D4BL, 0x522BEE48L,
+ 0x86E18AA3L, 0x748A09A0L, 0x67DAFA54L, 0x95B17957L,
+ 0xCBA24573L, 0x39C9C670L, 0x2A993584L, 0xD8F2B687L,
+ 0x0C38D26CL, 0xFE53516FL, 0xED03A29BL, 0x1F682198L,
+ 0x5125DAD3L, 0xA34E59D0L, 0xB01EAA24L, 0x42752927L,
+ 0x96BF4DCCL, 0x64D4CECFL, 0x77843D3BL, 0x85EFBE38L,
+ 0xDBFC821CL, 0x2997011FL, 0x3AC7F2EBL, 0xC8AC71E8L,
+ 0x1C661503L, 0xEE0D9600L, 0xFD5D65F4L, 0x0F36E6F7L,
+ 0x61C69362L, 0x93AD1061L, 0x80FDE395L, 0x72966096L,
+ 0xA65C047DL, 0x5437877EL, 0x4767748AL, 0xB50CF789L,
+ 0xEB1FCBADL, 0x197448AEL, 0x0A24BB5AL, 0xF84F3859L,
+ 0x2C855CB2L, 0xDEEEDFB1L, 0xCDBE2C45L, 0x3FD5AF46L,
+ 0x7198540DL, 0x83F3D70EL, 0x90A324FAL, 0x62C8A7F9L,
+ 0xB602C312L, 0x44694011L, 0x5739B3E5L, 0xA55230E6L,
+ 0xFB410CC2L, 0x092A8FC1L, 0x1A7A7C35L, 0xE811FF36L,
+ 0x3CDB9BDDL, 0xCEB018DEL, 0xDDE0EB2AL, 0x2F8B6829L,
+ 0x82F63B78L, 0x709DB87BL, 0x63CD4B8FL, 0x91A6C88CL,
+ 0x456CAC67L, 0xB7072F64L, 0xA457DC90L, 0x563C5F93L,
+ 0x082F63B7L, 0xFA44E0B4L, 0xE9141340L, 0x1B7F9043L,
+ 0xCFB5F4A8L, 0x3DDE77ABL, 0x2E8E845FL, 0xDCE5075CL,
+ 0x92A8FC17L, 0x60C37F14L, 0x73938CE0L, 0x81F80FE3L,
+ 0x55326B08L, 0xA759E80BL, 0xB4091BFFL, 0x466298FCL,
+ 0x1871A4D8L, 0xEA1A27DBL, 0xF94AD42FL, 0x0B21572CL,
+ 0xDFEB33C7L, 0x2D80B0C4L, 0x3ED04330L, 0xCCBBC033L,
+ 0xA24BB5A6L, 0x502036A5L, 0x4370C551L, 0xB11B4652L,
+ 0x65D122B9L, 0x97BAA1BAL, 0x84EA524EL, 0x7681D14DL,
+ 0x2892ED69L, 0xDAF96E6AL, 0xC9A99D9EL, 0x3BC21E9DL,
+ 0xEF087A76L, 0x1D63F975L, 0x0E330A81L, 0xFC588982L,
+ 0xB21572C9L, 0x407EF1CAL, 0x532E023EL, 0xA145813DL,
+ 0x758FE5D6L, 0x87E466D5L, 0x94B49521L, 0x66DF1622L,
+ 0x38CC2A06L, 0xCAA7A905L, 0xD9F75AF1L, 0x2B9CD9F2L,
+ 0xFF56BD19L, 0x0D3D3E1AL, 0x1E6DCDEEL, 0xEC064EEDL,
+ 0xC38D26C4L, 0x31E6A5C7L, 0x22B65633L, 0xD0DDD530L,
+ 0x0417B1DBL, 0xF67C32D8L, 0xE52CC12CL, 0x1747422FL,
+ 0x49547E0BL, 0xBB3FFD08L, 0xA86F0EFCL, 0x5A048DFFL,
+ 0x8ECEE914L, 0x7CA56A17L, 0x6FF599E3L, 0x9D9E1AE0L,
+ 0xD3D3E1ABL, 0x21B862A8L, 0x32E8915CL, 0xC083125FL,
+ 0x144976B4L, 0xE622F5B7L, 0xF5720643L, 0x07198540L,
+ 0x590AB964L, 0xAB613A67L, 0xB831C993L, 0x4A5A4A90L,
+ 0x9E902E7BL, 0x6CFBAD78L, 0x7FAB5E8CL, 0x8DC0DD8FL,
+ 0xE330A81AL, 0x115B2B19L, 0x020BD8EDL, 0xF0605BEEL,
+ 0x24AA3F05L, 0xD6C1BC06L, 0xC5914FF2L, 0x37FACCF1L,
+ 0x69E9F0D5L, 0x9B8273D6L, 0x88D28022L, 0x7AB90321L,
+ 0xAE7367CAL, 0x5C18E4C9L, 0x4F48173DL, 0xBD23943EL,
+ 0xF36E6F75L, 0x0105EC76L, 0x12551F82L, 0xE03E9C81L,
+ 0x34F4F86AL, 0xC69F7B69L, 0xD5CF889DL, 0x27A40B9EL,
+ 0x79B737BAL, 0x8BDCB4B9L, 0x988C474DL, 0x6AE7C44EL,
+ 0xBE2DA0A5L, 0x4C4623A6L, 0x5F16D052L, 0xAD7D5351L
+ };
+
+void sctp_gen_crc(const unsigned char *buff, size_t len, unsigned char* res){
+ uint32_t crc32 = ~0L;
+
+ for(size_t i = 0; i < len; i++){
+ crc32=(crc32>>8)^crc_table[(crc32^buff[i])&0xff];
+ }
+
+ crc32 = ~crc32;
+
+ res[3]=(crc32>> 24) & 0xff;
+ res[2]=(crc32>> 16) & 0xff;
+ res[1]=(crc32>> 8) & 0xff;
+ res[0]=crc32 & 0xff;
+
+}
+
+namespace SCTP__Types {
+
+OCTETSTRING f__SCTP__enc(const SCTP__Packet& pl__pdu)
+{
+ if (TTCN_Logger::log_this_event(TTCN_Logger::DEBUG_ENCDEC)) {
+ TTCN_Logger::begin_event(TTCN_Logger::DEBUG_ENCDEC);
+ TTCN_Logger::log_event_str("f_SCTP_enc(): Encoding @SCTP_Types.SCTP_Packet: ");
+ pl__pdu.log();
+ TTCN_Logger::end_event();
+ }
+ TTCN_EncDec::set_error_behavior(TTCN_EncDec::ET_ALL, TTCN_EncDec::EB_DEFAULT);
+ TTCN_Buffer ttcn_buffer;
+ pl__pdu.encode(SCTP__Packet_descr_, ttcn_buffer, TTCN_EncDec::CT_RAW);
+
+ size_t len=ttcn_buffer.get_len();
+ size_t p_len=0;
+ unsigned char* ptr=NULL;
+ ttcn_buffer.get_end(ptr,p_len);
+
+ ptr= ptr - len;
+
+ ptr[8]=0;
+ ptr[9]=0;
+ ptr[10]=0;
+ ptr[11]=0;
+
+ sctp_gen_crc(ptr,len,ptr+8);
+
+
+ OCTETSTRING ret_val;
+ ttcn_buffer.get_string(ret_val);
+ if (TTCN_Logger::log_this_event(TTCN_Logger::DEBUG_ENCDEC)) {
+ TTCN_Logger::begin_event(TTCN_Logger::DEBUG_ENCDEC);
+ TTCN_Logger::log_event_str("f_SCTP_enc(): Stream after encoding: ");
+ ret_val.log();
+ TTCN_Logger::end_event();
+ }
+ return ret_val;
+}
+
+INTEGER f__SCTP__dec(const OCTETSTRING& pl__stream, SCTP__Packet& pl__pdu)
+{
+ if (TTCN_Logger::log_this_event(TTCN_Logger::DEBUG_ENCDEC)) {
+ TTCN_Logger::begin_event(TTCN_Logger::DEBUG_ENCDEC);
+ TTCN_Logger::log_event_str("f_SCTP_dec(): Stream before decoding: ");
+ pl__stream.log();
+ TTCN_Logger::end_event();
+ }
+
+ TTCN_EncDec::set_error_behavior(TTCN_EncDec::ET_ALL, TTCN_EncDec::EB_WARNING);
+ TTCN_EncDec::clear_error();
+ TTCN_Buffer ttcn_buffer(pl__stream);
+
+ size_t len=ttcn_buffer.get_len();
+ size_t p_len=0;
+ unsigned char* ptr=NULL;
+ ttcn_buffer.get_end(ptr,p_len);
+
+ ptr= ptr - len;
+ unsigned char crc_orig[4];
+ crc_orig[0]=ptr[8];
+ crc_orig[1]=ptr[9];
+ crc_orig[2]=ptr[10];
+ crc_orig[3]=ptr[11];
+
+ ptr[8]=0;
+ ptr[9]=0;
+ ptr[10]=0;
+ ptr[11]=0;
+ unsigned char crc[4];
+ sctp_gen_crc(ptr,len,crc);
+
+ if((crc_orig[0]!= crc[0]) || (crc_orig[1]!= crc[1]) || (crc_orig[2]!= crc[2]) || (crc_orig[3]!= crc[3])){
+ return 1;
+ }
+ ptr[8]=crc[0];
+ ptr[9]=crc[1];
+ ptr[10]=crc[2];
+ ptr[11]=crc[3];
+
+ pl__pdu.decode(SCTP__Packet_descr_, ttcn_buffer, TTCN_EncDec::CT_RAW);
+
+ if (TTCN_Logger::log_this_event(TTCN_Logger::DEBUG_ENCDEC)) {
+ TTCN_Logger::begin_event(TTCN_Logger::DEBUG_ENCDEC);
+ TTCN_Logger::log_event_str("f_SCTP_dec(): Decoded @SCTP_Types.SCTP_Packet: ");
+ pl__pdu.log();
+ TTCN_Logger::end_event();
+ }
+ if (TTCN_EncDec::get_last_error_type() == TTCN_EncDec::ET_NONE) {
+ return 0;
+ } else {
+ return 1;
+ }
+}
+
+}
diff --git a/src/SCTP_Types.ttcn b/src/SCTP_Types.ttcn
new file mode 100644
index 0000000..66476f1
--- /dev/null
+++ b/src/SCTP_Types.ttcn
@@ -0,0 +1,886 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2000-2016 Ericsson Telecom AB
+//
+// All rights reserved. This program and the accompanying materials
+// are made available under the terms of the Eclipse Public License v1.0
+// which accompanies this distribution, and is available at
+// http://www.eclipse.org/legal/epl-v10.html
+///////////////////////////////////////////////////////////////////////////////
+//
+// File: SCTP_Types.ttcn
+// Description: Type definition for SCTP
+// Rev: R1B
+// Prodnr: CNL 113 830
+// Reference: RFC4690
+//
+module SCTP_Types{
+
+ external function f_SCTP_enc(in SCTP_Packet pl_pdu) return octetstring
+ with {
+ extension "prototype(convert)"
+ }
+ external function f_SCTP_dec(in octetstring pl_stream, out SCTP_Packet pl_pdu) return integer
+ with {
+ extension "prototype(backtrack)"
+ }
+
+
+ type integer SCTP_INT1 with {variant "FIELDLENGTH(8), COMP(nosign)"}
+ type integer SCTP_INT2 with {variant "FIELDLENGTH(16), COMP(nosign), BYTEORDER(last)"}
+ type integer SCTP_INT4 with {variant "FIELDLENGTH(32), COMP(nosign), BYTEORDER(last)"}
+ type bitstring BIT_FLAG length(1)
+
+
+
+ type record SCTP_Packet{
+ SCTP_Common_header common_header,
+ SCTP_Chunk_List chunks
+ } with {
+ variant ""
+ }
+
+ type record of SCTP_Chunk SCTP_Chunk_List;
+
+ type union SCTP_Chunk{
+ SCTP_Data_chunk data,
+ SCTP_Init_chunk init,
+ SCTP_InitAck_chunk init_ack,
+ SCTP_SAck_chunk sack,
+ SCTP_Heartbeat_chunk heartbeat,
+ SCTP_Heartbeat_ack_chunk heartbeat_ack,
+ SCTP_abort_chunk abort,
+ SCTP_Shutdown_chunk shutdown,
+ SCTP_Shutdown_ack_chunk shutdown_ack,
+ SCTP_error_chunk error_,
+ SCTP_CookieEcho_chunk cookie_echo,
+ SCTP_Cookie_ack_chunk cookie_ack,
+ SCTP_ShutdownComplete_chunk shutdown_complete,
+ SCTP_Auth_chunk auth,
+ SCTP_IData_chunk idata,
+ SCTP_ASCONF_ack_chunk asconf_ack,
+ SCTP_Re_Config_chunk re_config,
+ SCTP_Padding_chunk padding,
+ SCTP_Forward_TSN_chunk forward_tsn,
+ SCTP_ASCONF_chunk asconf,
+ SCTP_IForward_TSN_chunk iforward_tsn,
+ SCTP_Unknown_chunk unknown_chunk
+ } with {
+ variant "PADDING(dword32)"
+ variant "TAG( data, chunk_type = 0;
+ init, chunk_type = 1;
+ init_ack, chunk_type = 2;
+ sack, chunk_type = 3;
+ heartbeat, chunk_type = 4;
+ heartbeat_ack, chunk_type = 5;
+ abort, chunk_type = 6;
+ shutdown, chunk_type = 7;
+ shutdown_ack, chunk_type = 8;
+ error_, chunk_type = 9;
+ cookie_echo, chunk_type = 10;
+ cookie_ack, chunk_type = 11;
+ shutdown_complete, chunk_type = 14;
+ auth, chunk_type = 15;
+ idata, chunk_type = 64;
+ asconf_ack, chunk_type = 128;
+ re_config, chunk_type = 130;
+ padding, chunk_type = 132;
+ forward_tsn, chunk_type = 192;
+ asconf, chunk_type = 193;
+ iforward_tsn, chunk_type = 194;
+ unknown_chunk, OTHERWISE;
+ )"
+ }
+
+
+ type record SCTP_Data_chunk{
+ SCTP_INT1 chunk_type (0),
+ BIT_FLAG E_flag,
+ BIT_FLAG B_flag,
+ BIT_FLAG U_flag,
+ BIT_FLAG I_flag,
+ bitstring res_flags length(4),
+ SCTP_INT2 chunk_length,
+ SCTP_INT4 tsn,
+ SCTP_INT2 stream_id,
+ SCTP_INT2 ssn,
+ SCTP_INT4 ppid,
+ octetstring user_data
+
+ } with {
+ variant "PRESENCE(chunk_type=0)"
+ variant (chunk_length) "LENGTHTO(chunk_type,E_flag,B_flag,U_flag,I_flag,res_flags,chunk_length,tsn,stream_id,ssn,ppid,user_data)"
+ }
+
+
+ type record SCTP_Init_chunk{
+ SCTP_INT1 chunk_type (1),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_INT4 init_tag,
+ SCTP_INT4 a_rwnd,
+ SCTP_INT2 os,
+ SCTP_INT2 mis,
+ SCTP_INT4 init_tsn,
+ SCTP_Param_list params optional
+ } with {
+ variant "PRESENCE(chunk_type=1)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,init_tag,a_rwnd,os,mis,init_tsn,params)"
+ }
+
+ type record SCTP_InitAck_chunk{
+ SCTP_INT1 chunk_type (2),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_INT4 init_tag,
+ SCTP_INT4 a_rwnd,
+ SCTP_INT2 os,
+ SCTP_INT2 mis,
+ SCTP_INT4 init_tsn,
+ SCTP_Param_list params optional
+ } with {
+ variant "PRESENCE(chunk_type=2)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,init_tag,a_rwnd,os,mis,init_tsn,params)"
+ }
+
+ type record SCTP_SAck_chunk{
+ SCTP_INT1 chunk_type (3),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_INT4 cum_tsn_ack,
+ SCTP_INT4 a_rwnd,
+ SCTP_INT2 no_of_gap_blocks,
+ SCTP_INT2 no_of_dup_tsn,
+ record of SCTP_Gap_block gap_blocks optional,
+ record of SCTP_INT4 dup_tsns optional
+ } with {
+ variant "PRESENCE(chunk_type=3)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,cum_tsn_ack,a_rwnd,no_of_gap_blocks,no_of_dup_tsn,gap_blocks,dup_tsns)"
+ variant (no_of_gap_blocks) "LENGTHTO(gap_blocks), UNIT(elements)"
+ variant (no_of_dup_tsn) "LENGTHTO(dup_tsns), UNIT(elements)"
+ }
+
+ type record SCTP_Gap_block{
+ SCTP_INT2 start_tsn,
+ SCTP_INT2 end_tsn
+ }
+
+ type record SCTP_Heartbeat_chunk{
+ SCTP_INT1 chunk_type (4),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_Param_list params optional
+ } with {
+ variant "PRESENCE(chunk_type=4)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,params)"
+ }
+
+ type record SCTP_Heartbeat_ack_chunk{
+ SCTP_INT1 chunk_type (5),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_Param_list params optional
+ } with {
+ variant "PRESENCE(chunk_type=5)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,params)"
+ }
+
+
+ type record SCTP_abort_chunk{
+ SCTP_INT1 chunk_type (6),
+ BIT_FLAG T_flag,
+ bitstring flags length(7),
+ SCTP_INT2 chunk_length,
+ SCTP_Error_cause_list params optional
+ } with {
+ variant "PRESENCE(chunk_type=6)"
+ variant (chunk_length) "LENGTHTO(chunk_type,T_flag,flags,chunk_length,params)"
+ }
+
+ type record SCTP_Shutdown_chunk{
+ SCTP_INT1 chunk_type (7),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_INT4 cum_tsn_ack
+ } with {
+ variant "PRESENCE(chunk_type=7)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,cum_tsn_ack)"
+ }
+
+ type record SCTP_Shutdown_ack_chunk{
+ SCTP_INT1 chunk_type (8),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length
+ } with {
+ variant "PRESENCE(chunk_type=8)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length)"
+ }
+
+
+ type record SCTP_error_chunk{
+ SCTP_INT1 chunk_type (9),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_Error_cause_list params optional
+ } with {
+ variant "PRESENCE(chunk_type=9)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,params)"
+ }
+
+
+ type record SCTP_CookieEcho_chunk{
+ SCTP_INT1 chunk_type (10),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ octetstring cookie
+ } with {
+ variant "PRESENCE(chunk_type=10)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,cookie)"
+ }
+
+
+ type record SCTP_Cookie_ack_chunk{
+ SCTP_INT1 chunk_type (11),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length
+ } with {
+ variant "PRESENCE(chunk_type=11)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length)"
+ }
+
+
+ type record SCTP_ShutdownComplete_chunk{
+ SCTP_INT1 chunk_type (14),
+ BIT_FLAG T_flag,
+ bitstring flags length(7),
+ SCTP_INT2 chunk_length
+ } with {
+ variant "PRESENCE(chunk_type=14)"
+ variant (chunk_length) "LENGTHTO(chunk_type,T_flag,flags,chunk_length)"
+ }
+
+ type record SCTP_Auth_chunk{
+ SCTP_INT1 chunk_type (15),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_INT2 key_id,
+ SCTP_INT2 hmac_id,
+ octetstring hmac
+ } with {
+ variant "PRESENCE(chunk_type=15)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,key_id,hmac_id,hmac)"
+ }
+
+ type record SCTP_IData_chunk{
+ SCTP_INT1 chunk_type (64),
+ BIT_FLAG E_flag,
+ BIT_FLAG B_flag,
+ BIT_FLAG U_flag,
+ BIT_FLAG I_flag,
+ bitstring res_flags length(4),
+ SCTP_INT2 chunk_length,
+ SCTP_INT4 tsn,
+ SCTP_INT2 stream_id,
+ SCTP_INT2 reserved,
+ SCTP_INT4 mid,
+ SCTP_INT4 ppid_fsn,
+ octetstring user_data
+
+ } with {
+ variant "PRESENCE(chunk_type=64)"
+ variant (chunk_length) "LENGTHTO(chunk_type,E_flag,B_flag,U_flag,I_flag,res_flags,chunk_length,tsn,stream_id,reserved,mid,ppid_fsn,user_data)"
+ }
+
+ type record SCTP_ASCONF_ack_chunk{
+ SCTP_INT1 chunk_type (128),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_INT4 seq_no,
+ SCTP_Param_list params optional
+ } with {
+ variant "PRESENCE(chunk_type=128)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,seq_no,params)"
+ }
+
+
+ type record SCTP_Re_Config_chunk{
+ SCTP_INT1 chunk_type (130),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_Param_list params optional
+ } with {
+ variant "PRESENCE(chunk_type=130)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,params)"
+ }
+
+ type record SCTP_Padding_chunk{
+ SCTP_INT1 chunk_type (132),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ octetstring padding
+ } with {
+ variant "PRESENCE(chunk_type=132)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,padding)"
+ }
+
+ type record SCTP_Forward_TSN_chunk{
+ SCTP_INT1 chunk_type (192),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_INT4 new_tsn,
+ record of SCTP_Forward_TSN_streamdata stream_ssn_list
+ } with {
+ variant "PRESENCE(chunk_type=192)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,new_tsn,stream_ssn_list)"
+ }
+
+ type record SCTP_Forward_TSN_streamdata{
+ SCTP_INT2 stream_id,
+ SCTP_INT2 ssn
+ }
+
+ type record SCTP_ASCONF_chunk{
+ SCTP_INT1 chunk_type (193),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_INT4 seq_no,
+ SCTP_Param_list params optional
+ } with {
+ variant "PRESENCE(chunk_type=193)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,seq_no,params)"
+ }
+
+ type record SCTP_IForward_TSN_chunk{
+ SCTP_INT1 chunk_type (194),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ SCTP_INT4 new_tsn,
+ record of SCTP_IForward_TSN_streamdata stream_ssn_list
+ } with {
+ variant "PRESENCE(chunk_type=194)"
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,new_tsn,stream_ssn_list)"
+ }
+
+ type record SCTP_IForward_TSN_streamdata{
+ SCTP_INT2 stream_id,
+ SCTP_INT2 reserved,
+ SCTP_INT4 mid
+ }
+
+ type record SCTP_Unknown_chunk{
+ SCTP_INT1 chunk_type (0..255),
+ bitstring flags length(8),
+ SCTP_INT2 chunk_length,
+ octetstring chunk_value
+ } with {
+ variant (chunk_length) "LENGTHTO(chunk_type,flags,chunk_length,chunk_value)"
+ }
+
+
+ type record of SCTP_Error_cause SCTP_Error_cause_list;
+
+ type union SCTP_Error_cause {
+ SCTP_Invalid_StreamId_cause invalid_streamId,
+ SCTP_Missing_mand_param_cause missing_params,
+ SCTP_Stale_cookie_cause stale_cookie,
+ SCTP_Out_of_res_cause out_of_resources,
+ SCTP_Unresolvable_addr_cause unresolvable_addr,
+ SCTP_Unrecognized_chunk_cause unrecognized_chunk,
+ SCTP_Invalid_mand_param_cause invalid_mandatory_param,
+ SCTP_Unrecognized_params_cause unrecognized_params,
+ SCTP_No_User_data_cause no_user_data,
+ SCTP_Cookie_while_shutdown_cause cookie_while_shutdown,
+ SCTP_Restart_with_new_addr_cause restart_with_new_addr,
+ SCTP_User_abort_cause user_abort,
+ SCTP_Protocol_violation_cause protocol_violation,
+ SCTP_Req_del_last_ip_cause req_del_last_ip,
+ SCTP_Refused_res_shortage_cause refused_res_shortage,
+ SCTP_Req_del_source_ip_cause req_del_source_ip,
+ SCTP_Illegal_ASCONF_cause illegal_asconf,
+ SCTP_No_atuhorization_cause no_authorization,
+ SCTP_UnsupportedHMAC_cause unsupported_hmac,
+ SCTP_Unknown_error_cause unknown_cause
+ } with {
+ variant "PADDING(dword32)"
+ }
+
+ type record SCTP_Invalid_StreamId_cause{
+ SCTP_INT2 cause_code(1),
+ SCTP_INT2 cause_length,
+ SCTP_INT2 streamId,
+ SCTP_INT2 reserved
+ } with {
+ variant "PRESENCE(cause_code=1)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,streamId,reserved)"
+ }
+
+ type record SCTP_Missing_mand_param_cause{
+ SCTP_INT2 cause_code(2),
+ SCTP_INT2 cause_length,
+ SCTP_INT4 num_of_params,
+ record of SCTP_INT2 missing_type
+ } with {
+ variant "PRESENCE(cause_code=2)"
+ variant (num_of_params) "LENGTHTO(missing_type), UNIT(elements)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,num_of_params,missing_type)"
+ }
+
+ type record SCTP_Stale_cookie_cause{
+ SCTP_INT2 cause_code(3),
+ SCTP_INT2 cause_length,
+ SCTP_INT4 measure
+ } with {
+ variant "PRESENCE(cause_code=3)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,measure)"
+ }
+
+ type record SCTP_Out_of_res_cause{
+ SCTP_INT2 cause_code(4),
+ SCTP_INT2 cause_length
+ } with {
+ variant "PRESENCE(cause_code=4)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length)"
+ }
+
+ type record SCTP_Unresolvable_addr_cause{
+ SCTP_INT2 cause_code(5),
+ SCTP_INT2 cause_length,
+ octetstring addr
+ } with {
+ variant "PRESENCE(cause_code=5)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,addr)"
+ }
+
+ type record SCTP_Unrecognized_chunk_cause{
+ SCTP_INT2 cause_code(6),
+ SCTP_INT2 cause_length,
+ octetstring chunk
+ } with {
+ variant "PRESENCE(cause_code=6)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,chunk)"
+ }
+
+ type record SCTP_Invalid_mand_param_cause{
+ SCTP_INT2 cause_code(7),
+ SCTP_INT2 cause_length
+ } with {
+ variant "PRESENCE(cause_code=7)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length)"
+ }
+
+ type record SCTP_Unrecognized_params_cause{
+ SCTP_INT2 cause_code(8),
+ SCTP_INT2 cause_length,
+ octetstring params
+ } with {
+ variant "PRESENCE(cause_code=8)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,params)"
+ }
+
+ type record SCTP_No_User_data_cause{
+ SCTP_INT2 cause_code(9),
+ SCTP_INT2 cause_length,
+ SCTP_INT4 tsn
+ } with {
+ variant "PRESENCE(cause_code=9)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,tsn)"
+ }
+
+ type record SCTP_Cookie_while_shutdown_cause{
+ SCTP_INT2 cause_code(10),
+ SCTP_INT2 cause_length
+ } with {
+ variant "PRESENCE(cause_code=10)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length)"
+ }
+
+ type record SCTP_Restart_with_new_addr_cause{
+ SCTP_INT2 cause_code(11),
+ SCTP_INT2 cause_length,
+ octetstring new_addr
+ } with {
+ variant "PRESENCE(cause_code=11)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,new_addr)"
+ }
+
+ type record SCTP_User_abort_cause{
+ SCTP_INT2 cause_code(12),
+ SCTP_INT2 cause_length,
+ octetstring reason
+ } with {
+ variant "PRESENCE(cause_code=12)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,reason)"
+ }
+
+ type record SCTP_Protocol_violation_cause{
+ SCTP_INT2 cause_code(13),
+ SCTP_INT2 cause_length,
+ octetstring reason
+ } with {
+ variant "PRESENCE(cause_code=13)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,reason)"
+ }
+
+ type record SCTP_Req_del_last_ip_cause{
+ SCTP_INT2 cause_code(160),
+ SCTP_INT2 cause_length,
+ octetstring tlv
+ } with {
+ variant "PRESENCE(cause_code=160)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,tlv)"
+ }
+
+ type record SCTP_Refused_res_shortage_cause{
+ SCTP_INT2 cause_code(161),
+ SCTP_INT2 cause_length,
+ octetstring tlv
+ } with {
+ variant "PRESENCE(cause_code=161)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,tlv)"
+ }
+
+ type record SCTP_Req_del_source_ip_cause{
+ SCTP_INT2 cause_code(162),
+ SCTP_INT2 cause_length,
+ octetstring tlv
+ } with {
+ variant "PRESENCE(cause_code=162)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,tlv)"
+ }
+
+ type record SCTP_Illegal_ASCONF_cause{
+ SCTP_INT2 cause_code(163),
+ SCTP_INT2 cause_length
+ } with {
+ variant "PRESENCE(cause_code=163)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length)"
+ }
+
+ type record SCTP_No_atuhorization_cause{
+ SCTP_INT2 cause_code(164),
+ SCTP_INT2 cause_length,
+ octetstring tlv
+ } with {
+ variant "PRESENCE(cause_code=164)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,tlv)"
+ }
+
+ type record SCTP_UnsupportedHMAC_cause{
+ SCTP_INT2 cause_code(261),
+ SCTP_INT2 cause_length,
+ SCTP_INT2 hmac
+ } with {
+ variant "PRESENCE(cause_code=261)"
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,hmac)"
+ }
+
+ type record SCTP_Unknown_error_cause{
+ SCTP_INT2 cause_code,
+ SCTP_INT2 cause_length,
+ octetstring cause_value
+ } with {
+ variant (cause_length) "LENGTHTO(cause_code,cause_length,cause_value)"
+ }
+
+
+ type record of SCTP_parameters SCTP_Param_list;
+
+ type union SCTP_parameters{
+ SCTP_Hearbeat_info_parameter heartbeat_info,
+ SCTP_IPv4_parameter ipv4_addr,
+ SCTP_IPv6_parameter ipv6_addr,
+ SCTP_StateCookie_parameter state_cookie,
+ SCTP_unrecognized_params_parameter unrecognized_params,
+ SCTP_Cookie_pres_parameter cookie_preservative,
+ SCTP_HostNameAddr_parameter hostname,
+ SCTP_Supported_addr_types_parameter supported_addr_types,
+ SCTP_Out_SSN_Reset_req_parameter out_ssn_reset_req,
+ SCTP_In_SSN_Reset_req_parameter in_ssn_reset_req,
+ SCTP_SSN_TSN_Reset_req_parameter ssn_tsn_reset_req,
+ SCTP_Reconf_resp_parameter reconf_resp,
+ SCTP_Add_out_stream_req_parameter add_out_stream,
+ SCTP_Add_in_stream_req_parameter add_in_stream,
+ SCTP_Random_parameter random,
+ SCTP_chunk_list_parameter chunk_list,
+ SCTP_Req_HMAC_parameter req_HMAC,
+ SCTP_Padding_parameter padding,
+ SCTP_Supported_extensions_parameter supported_extensions,
+ SCTP_Forward_TSN_Supported_parameter forward_tsn_supported,
+ SCTP_Add_IP_addr_parameter add_address,
+ SCTP_Del_IP_addr_parameter del_address,
+ SCTP_Error_cause_parameter error_cause,
+ SCTP_Set_Pri_IP_addr_parameter set_primary_addr,
+ SCTP_Success_Ind_parameter success_ind,
+ SCTP_Adaptation_layer_Ind_parameter adaptation_layer_ind,
+ SCTP_Unknown_parameter unknown_param
+ } with {
+ variant "PADDING(dword32)"
+ }
+
+ type record SCTP_Hearbeat_info_parameter{
+ SCTP_INT2 param_type(1),
+ SCTP_INT2 param_length,
+ octetstring info
+ } with {
+ variant "PRESENCE(param_type=1)"
+ variant (param_length) "LENGTHTO(param_type,param_length,info)"
+ }
+
+ type record SCTP_IPv4_parameter{
+ SCTP_INT2 param_type(5),
+ SCTP_INT2 param_length,
+ octetstring ipv4_addr
+ } with {
+ variant "PRESENCE(param_type=5)"
+ variant (param_length) "LENGTHTO(param_type,param_length,ipv4_addr)"
+ }
+
+ type record SCTP_IPv6_parameter{
+ SCTP_INT2 param_type(6),
+ SCTP_INT2 param_length,
+ octetstring ipv6_addr
+ } with {
+ variant "PRESENCE(param_type=6)"
+ variant (param_length) "LENGTHTO(param_type,param_length,ipv6_addr)"
+ }
+
+ type record SCTP_StateCookie_parameter{
+ SCTP_INT2 param_type(7),
+ SCTP_INT2 param_length,
+ octetstring state_cookie
+ } with {
+ variant "PRESENCE(param_type=7)"
+ variant (param_length) "LENGTHTO(param_type,param_length,state_cookie)"
+ }
+
+ type record SCTP_unrecognized_params_parameter{
+ SCTP_INT2 param_type(8),
+ SCTP_INT2 param_length,
+ octetstring unrecognized_params
+ } with {
+ variant "PRESENCE(param_type=8)"
+ variant (param_length) "LENGTHTO(param_type,param_length,unrecognized_params)"
+ }
+
+ type record SCTP_Cookie_pres_parameter{
+ SCTP_INT2 param_type(9),
+ SCTP_INT2 param_length,
+ SCTP_INT2 suggested_incr
+ } with {
+ variant "PRESENCE(param_type=9)"
+ variant (param_length) "LENGTHTO(param_type,param_length,suggested_incr)"
+ }
+
+ type record SCTP_HostNameAddr_parameter{
+ SCTP_INT2 param_type(11),
+ SCTP_INT2 param_length,
+ octetstring host_name
+ } with {
+ variant "PRESENCE(param_type=11)"
+ variant (param_length) "LENGTHTO(param_type,param_length,host_name)"
+ }
+
+ type record SCTP_Supported_addr_types_parameter{
+ SCTP_INT2 param_type(12),
+ SCTP_INT2 param_length,
+ record of SCTP_INT2 supported_addr_types
+ } with {
+ variant "PRESENCE(param_type=12)"
+ variant (param_length) "LENGTHTO(param_type,param_length,supported_addr_types)"
+ }
+
+ type record SCTP_Out_SSN_Reset_req_parameter{
+ SCTP_INT2 param_type(13),
+ SCTP_INT2 param_length,
+ SCTP_INT4 reconf_req_seq,
+ SCTP_INT4 reconf_resp_seq,
+ SCTP_INT4 last_assigned_tsn,
+ record of SCTP_INT2 stream_numbers optional
+ } with {
+ variant "PRESENCE(param_type=13)"
+ variant (param_length) "LENGTHTO(param_type,param_length,reconf_req_seq,reconf_resp_seq,last_assigned_tsn,stream_numbers)"
+ }
+
+ type record SCTP_In_SSN_Reset_req_parameter{
+ SCTP_INT2 param_type(14),
+ SCTP_INT2 param_length,
+ SCTP_INT4 reconf_req_seq,
+ record of SCTP_INT2 stream_numbers optional
+ } with {
+ variant "PRESENCE(param_type=14)"
+ variant (param_length) "LENGTHTO(param_type,param_length,reconf_req_seq,stream_numbers)"
+ }
+
+ type record SCTP_SSN_TSN_Reset_req_parameter{
+ SCTP_INT2 param_type(15),
+ SCTP_INT2 param_length,
+ SCTP_INT4 reconf_req_seq
+ } with {
+ variant "PRESENCE(param_type=15)"
+ variant (param_length) "LENGTHTO(param_type,param_length,reconf_req_seq)"
+ }
+
+ type record SCTP_Reconf_resp_parameter{
+ SCTP_INT2 param_type(16),
+ SCTP_INT2 param_length,
+ SCTP_INT4 reconf_resp_seq,
+ SCTP_INT4 result,
+ SCTP_INT4 sender_next_tsn optional,
+ SCTP_INT4 receiver_next_tsn optional
+ } with {
+ variant "PRESENCE(param_type=16)"
+ variant (param_length) "LENGTHTO(param_type,param_length,reconf_resp_seq,result,sender_next_tsn,receiver_next_tsn)"
+ }
+
+ type record SCTP_Add_out_stream_req_parameter{
+ SCTP_INT2 param_type(17),
+ SCTP_INT2 param_length,
+ SCTP_INT4 reconf_req_seq,
+ SCTP_INT2 stream_num,
+ SCTP_INT2 reserved
+ } with {
+ variant "PRESENCE(param_type=17)"
+ variant (param_length) "LENGTHTO(param_type,param_length,reconf_req_seq,stream_num,reserved)"
+ }
+
+ type record SCTP_Add_in_stream_req_parameter{
+ SCTP_INT2 param_type(18),
+ SCTP_INT2 param_length,
+ SCTP_INT4 reconf_req_seq,
+ SCTP_INT2 stream_num,
+ SCTP_INT2 reserved
+ } with {
+ variant "PRESENCE(param_type=18)"
+ variant (param_length) "LENGTHTO(param_type,param_length,reconf_req_seq,stream_num,reserved)"
+ }
+
+ type record SCTP_Random_parameter{
+ SCTP_INT2 param_type(32770),
+ SCTP_INT2 param_length,
+ octetstring random
+ } with {
+ variant "PRESENCE(param_type=32770)"
+ variant (param_length) "LENGTHTO(param_type,param_length,random)"
+ }
+
+ type record SCTP_chunk_list_parameter{
+ SCTP_INT2 param_type(32771),
+ SCTP_INT2 param_length,
+ record of SCTP_INT1 chunk_list
+ } with {
+ variant "PRESENCE(param_type=32771)"
+ variant (param_length) "LENGTHTO(param_type,param_length,chunk_list)"
+ }
+
+ type record SCTP_Req_HMAC_parameter{
+ SCTP_INT2 param_type(32772),
+ SCTP_INT2 param_length,
+ record of SCTP_INT2 HMAC_IDs
+ } with {
+ variant "PRESENCE(param_type=32772)"
+ variant (param_length) "LENGTHTO(param_type,param_length,HMAC_IDs)"
+ }
+
+ type record SCTP_Padding_parameter{
+ SCTP_INT2 param_type(32773),
+ SCTP_INT2 param_length,
+ octetstring padding
+ } with {
+ variant "PRESENCE(param_type=32773)"
+ variant (param_length) "LENGTHTO(param_type,param_length,padding)"
+ }
+
+ type record SCTP_Supported_extensions_parameter{
+ SCTP_INT2 param_type(32776),
+ SCTP_INT2 param_length,
+ record of SCTP_INT1 supported_extensions
+ } with {
+ variant "PRESENCE(param_type=32776)"
+ variant (param_length) "LENGTHTO(param_type,param_length,supported_extensions)"
+ }
+
+ type record SCTP_Forward_TSN_Supported_parameter{
+ SCTP_INT2 param_type(49152),
+ SCTP_INT2 param_length
+ } with {
+ variant "PRESENCE(param_type=49152)"
+ variant (param_length) "LENGTHTO(param_type,param_length)"
+ }
+
+ type record SCTP_Add_IP_addr_parameter{
+ SCTP_INT2 param_type(49153),
+ SCTP_INT2 param_length,
+ SCTP_INT4 asconf_req_id,
+ SCTP_parameters addr
+ } with {
+ variant "PRESENCE(param_type=49153)"
+ variant (param_length) "LENGTHTO(param_type,param_length,asconf_req_id,addr)"
+ }
+
+ type record SCTP_Del_IP_addr_parameter{
+ SCTP_INT2 param_type(49154),
+ SCTP_INT2 param_length,
+ SCTP_INT4 asconf_req_id,
+ SCTP_parameters addr
+ } with {
+ variant "PRESENCE(param_type=49154)"
+ variant (param_length) "LENGTHTO(param_type,param_length,asconf_req_id,addr)"
+ }
+
+ type record SCTP_Error_cause_parameter{
+ SCTP_INT2 param_type(49155),
+ SCTP_INT2 param_length,
+ SCTP_INT4 asconf_req_id,
+ SCTP_Error_cause_list causes
+ } with {
+ variant "PRESENCE(param_type=49155)"
+ variant (param_length) "LENGTHTO(param_type,param_length,asconf_req_id,causes)"
+ }
+
+ type record SCTP_Set_Pri_IP_addr_parameter{
+ SCTP_INT2 param_type(49156),
+ SCTP_INT2 param_length,
+ SCTP_INT4 asconf_req_id,
+ SCTP_parameters addr
+ } with {
+ variant "PRESENCE(param_type=49156)"
+ variant (param_length) "LENGTHTO(param_type,param_length,asconf_req_id,addr)"
+ }
+
+ type record SCTP_Success_Ind_parameter{
+ SCTP_INT2 param_type(49157),
+ SCTP_INT2 param_length,
+ SCTP_INT4 asconf_req_id
+ } with {
+ variant "PRESENCE(param_type=49157)"
+ variant (param_length) "LENGTHTO(param_type,param_length,asconf_req_id)"
+ }
+
+ type record SCTP_Adaptation_layer_Ind_parameter{
+ SCTP_INT2 param_type(49157),
+ SCTP_INT2 param_length,
+ SCTP_INT4 code_point
+ } with {
+ variant "PRESENCE(param_type=49157)"
+ variant (param_length) "LENGTHTO(param_type,param_length,code_point)"
+ }
+
+
+ type record SCTP_Unknown_parameter{
+ SCTP_INT2 param_type,
+ SCTP_INT2 param_length,
+ octetstring param_value
+ } with {
+ variant (param_length) "LENGTHTO(param_type,param_length,param_value)"
+ }
+
+ type record SCTP_Common_header{
+ SCTP_INT2 source_port (0..65535),
+ SCTP_INT2 destination_port (0..65535),
+ SCTP_INT4 verification_tag,
+ octetstring checksum length(4)
+ } with {
+ variant (verification_tag) "FIELDLENGTH(32)"
+ }
+
+} with { encode "RAW" }
