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//send
ipPort.send(v_ipPkt);
return e_success;
}//end f_sendCot
/*
* @desc This sends a IPv6 packet with MipExtHdr - Fast Nbr Adv
* from an IPv6 node to any NUT.
*
* @remark
* @param p_msg MIPHeader to be sent
* @return execution status
*/
tepelmann
committed
function f_sendFastNbrAdv(template FastNeighborAdvertisement p_msg)
runs on LibIpv6Node
return FncRetCode {
//Variables
tepelmann
committed
var FastNeighborAdvertisement v_ipPkt;
if(f_setExtensionHeaders( v_ipPkt ) != e_success) {
log(" **** f_sendFastNbrAdv: Error when calculating length of extension headers ****");
return e_error;
}
//send
ipPort.send(v_ipPkt);
return e_success;
}//end f_sendFastNbrAdv
}//end group rfc3775Mipv6_ExtHdrFunctions
group rfc4303Esp_ExtHdrFunctions {
* @desc Rebuild original packet from an ESP packet (removes ESP encapsulation)
* @param p_ipv6Packet complete packet containing ESP Header to be processed
* @param p_espHeader ESP Header to be processed
* @param p_originalIpv6Packet retrieved original packet
* @return execution status
*/
function f_getOriginalIpv6Packet( in Ipv6Packet p_ipv6Packet,
in EspHeader p_espHeader,
out Ipv6Packet p_originalIpv6Packet)
runs on LibIpv6Node
return FncRetCode {
var UInt8 i;
var boolean v_loop := true;
if (not(ispresent(p_espHeader.espPayload.espIpDatagram.extHdrList))
and not(ispresent(p_espHeader.espPayload.espIpDatagram.ipv6Payload))) {
log("**** f_getOriginalIpv6Packet: EspHeader.espPayload.espIpDatagram received that does neither contain extHdrList not ipv6Payload => EspHeader is not constructed correctly ****") ;
return e_error;
}
//Build original packet
p_originalIpv6Packet.ipv6Hdr := p_ipv6Packet.ipv6Hdr;
if (ispresent(p_espHeader.espPayload.espIpDatagram.extHdrList)) {
p_originalIpv6Packet.extHdrList := p_espHeader.espPayload.espIpDatagram.extHdrList;
}
if (ispresent(p_espHeader.espPayload.espIpDatagram.ipv6Payload)) {
p_originalIpv6Packet.ipv6Payload := p_espHeader.espPayload.espIpDatagram.ipv6Payload;
}
// is a tunneledIpv6Hdr in the extHdrList? If yes, then it becomes the Ipv6Hdr of the original packet
if (ispresent(p_espHeader.espPayload.espIpDatagram.extHdrList)) {
for (i:=0; i<sizeof(p_espHeader.espPayload.espIpDatagram.extHdrList) and v_loop ;i:=i+1) {
if (ischosen(p_espHeader.espPayload.espIpDatagram.extHdrList[i].tunneledIpv6)) {
p_originalIpv6Packet.ipv6Hdr := p_espHeader.espPayload.espIpDatagram.extHdrList[i].tunneledIpv6;
v_loop := false;
}
else {
p_originalIpv6Packet.extHdrList[i] := p_espHeader.espPayload.espIpDatagram.extHdrList[i];
}
}
}
p_originalIpv6Packet.ipv6Hdr.payloadLength := fx_payloadLength (p_originalIpv6Packet);
}//end f_getOriginalIpv6Packet
* This function is used when sending messages.
* @param p_msg ExtensionHeaderList to be treated
* @return execution status
*/
/* function f_setEspHeader( in Ipv6Packet p_ipv6Packet,
inout EspHeader p_espHeader)
runs on LibIpv6Node
return FncRetCode {
var Ipv6Header v_originalIpv6Hdr;
var EchoRequest v_originalEchoRequest;
var EchoReply v_originalEchoReply;
//treat MipHdr and other ext
if (ispresent(p_espHeader.espPayload.espIpDatagram.extHdrList)) {
}
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if (ispresent(p_espHeader.espPayload.espIpDatagram.ipv6Payload)) {
if (ischosen(p_espHeader.espPayload.espIpDatagram.ipv6Payload.echoRequestMsg)) {
if (ischosen(p_espHeader.espPayload.espIpDatagram.extHdrList[0].tunneledIpv6)) {//tunnelMode
v_originalIpv6Hdr := p_espHeader.espPayload.espIpDatagram.extHdrList[0].tunneledIpv6;
}
else { //transportMode
v_originalIpv6Hdr := p_ipv6Packet.ipv6Hdr;
}
//build original packet
v_originalEchoRequest := {
ipv6Hdr := v_originalIpv6Hdr,
extHdrList := omit,
ipv6Payload := p_espHeader.espPayload.espIpDatagram.ipv6Payload
}
//calc checksum
if (v_originalEchoRequest.ipv6Payload.echoRequestMsg.checksum != c_2ZeroBytes) {
//calc checksum
v_originalEchoRequest.ipv6Payload.echoRequestMsg.checksum := fx_icmpv6Checksum(v_originalEchoRequest);
}
//assign checksum
p_espHeader.espPayload.espIpDatagram.ipv6Payload.echoRequestMsg.checksum := v_originalEchoRequest.ipv6Payload.echoRequestMsg.checksum;
}
else if (ischosen(p_espHeader.espPayload.espIpDatagram.ipv6Payload.echoReplyMsg)) {
if (ischosen(p_espHeader.espPayload.espIpDatagram.extHdrList[0].tunneledIpv6)) {//tunnelMode
v_originalIpv6Hdr := p_espHeader.espPayload.espIpDatagram.extHdrList[0].tunneledIpv6;
}
else { //transportMode
v_originalIpv6Hdr := p_ipv6Packet.ipv6Hdr;
}
//build original packet
v_originalEchoReply := {
ipv6Hdr := v_originalIpv6Hdr,
extHdrList := omit,
ipv6Payload := p_espHeader.espPayload.espIpDatagram.ipv6Payload
}
//calc checksum
if (v_originalEchoReply.ipv6Payload.echoReplyMsg.checksum != c_2ZeroBytes) {
//calc checksum
v_originalEchoReply.ipv6Payload.echoReplyMsg.checksum := fx_icmpv6Checksum(v_originalEchoReply);
}
//assign checksum
p_espHeader.espPayload.espIpDatagram.ipv6Payload.echoReplyMsg.checksum := v_originalEchoReply.ipv6Payload.echoReplyMsg.checksum;
}