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/**
* @author ETSI / STF405
* @version $URL: svn+ssh://vcs.etsi.org/TTCN3/LIB/LibIts/trunk/ttcn/GeoNetworking/LibItsGeoNetworking_Functions.ttcn $
* $Id: LibItsGeoNetworking_Functions.ttcn 168 2010-09-22 15:18:22Z berge $
* @desc Module containing functions for Ipv6OverGeoNetworking
*
*/
module LibItsIpv6OverGeoNetworking_Functions {
// Libcommon
import from LibCommon_BasicTypesAndValues all;
import from LibCommon_DataStrings all;
import from LibCommon_VerdictControl all;
// LibIts
import from LibIts_TestSystem all;
import from LibIts_Interface all;
import from LibItsGeoNetworking_TypesAndValues all;
import from LibItsGeoNetworking_Functions all;
import from LibItsGeoNetworking_Templates all;
import from LibItsIpv6OverGeoNetworking_TypesAndValues all;
import from LibItsIpv6OverGeoNetworking_Templates all;
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group ipv6OverGeoConfigurationFunctions {
/**
* @desc This configuration features:
* - one ITS node (IUT)
* - two ITS nodes (nodeA, nodeB)
* - Area1 which only includes NodeB and IUT
* - Area2 which only includes NodeB
* NodeB being close to the area center
*/
function f_ipv6_cf01Up() runs on ItsNt {
// Variables
// Map
map(self:ipv6OverGeoNetworkingPort, system:ipv6OverGeoNetworkingPort);
f_cf01Up();
} // end f_cf01Up
/**
* @desc Deletes configuration cf01
*/
function f_ipv6_cf01Down() runs on ItsNt {
// Map
unmap(self:ipv6OverGeoNetworkingPort, system:ipv6OverGeoNetworkingPort);
f_cf01Down();
} // end f_cf01Down
} // end group ipv6OverGeoConfigurationFunctions
group testAdapter {
function f_taGetInterfaces() {
//TODO
}
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} // end group testAdapter
group sendFunctions {
function f_sendGeoBroadcastWithRA(
in template (value) GvlTableEntry p_gvl,
in template (value) LongPosVector p_position,
in template (value) Ipv6Address p_sourceAddr,
in template (value) Ipv6Address p_destinationAddr
) runs on ItsNt {
f_sendGeoNetMessage(
m_geoNwReq(
m_geoNwPduWithPayload(
m_geoBroadcastHeader(
p_position,
p_position,
e_vehicleStation,
vc_localSeqNumber,
f_getGeoBroadcastArea(p_gvl.area)
),
m_ipv6Payload(
m_ipv6Packet(
p_sourceAddr,
p_destinationAddr,
c_noNextHdr,
m_rtAdvWithOptions(
m_rtAdvOpt_prefixOpt(
p_gvl.prefixLength,
c_lFlag1,
c_aFlag1,
c_validLifetime30s,
c_preferredLifetime30s,
p_gvl.prefix
)
)
)
)
)
)
);
}
} //end group sendFunctions
group miscellaneous {
/**
* @desc Gets the Geographical Virtual link entry associated to an area
* @param p_areaIndex The index of the area
*/
function f_getGVL(in integer p_areaIndex) runs on ItsNt return GvlTableEntry {
return valueof(vc_gvlTable[p_areaIndex]);
} //end f_getGVL
/**
* @desc Retrieves the MAC address from the GN address.
* @param p_gnAddr The GN address
* @return The MAC address
*/
function f_gnAddr2MacAddr(in GN_Address p_gnAddr) return MacAddress {
return p_gnAddr.mid;
/**
* @desc Retrieves the GN address from the MAC address.
* @param p_macAddr The MAC address
* @return The GN address
*/
function f_macAddr2GnAddr(in MacAddress p_macAddr) return GN_Address {
var GN_Address v_gnAddr := valueof(m_dummyGnAddr);
v_gnAddr.mid := p_macAddr;
return v_gnAddr;
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/**
* @desc Compute an Unique Interface ID based on a MAC Address
* @param p_macAddr MAC Address
* @return Unique interface ID
*/
function f_createUniqueInterfaceId (
in Oct6 p_macAddr
)
return Oct8 {
var UInt8 i;
var Oct3 v_leftPartMac := int2oct(0,3);
var Oct3 v_rightPartMac := int2oct(0,3);
var Bit24 v_leftPartBits := int2bit(0,24);
var Bit24 v_leftPartBitMask := oct2bit('020000'O);
//get leftPart
for (i:=0; i<lengthof(p_macAddr)-3; i:=i+1) {
v_leftPartMac[i] := p_macAddr[i];
}
//get rightPart
for (i:=3; i<lengthof(p_macAddr); i:=i+1) {
v_rightPartMac[i-3] := p_macAddr[i];
}
//flipBit universalBit of leftPart
v_leftPartBits := oct2bit(v_leftPartMac);
v_leftPartBits := v_leftPartBits xor4b v_leftPartBitMask;
v_leftPartMac := bit2oct(v_leftPartBits);
//build InterfaceId
return v_leftPartMac & 'FFFE'O & v_rightPartMac;
} // end f_createUniqueInterfaceId
/**
* @desc Compute link-local, global, solicited-node multicast IPv6 addresses<br>
* and MAC-Solicited-node Address, based on prefix and MAC address
* @param p_macAddr MAC Address
* @param p_prefix Prefix
* @param p_prefixLen Prefix Length
* @param p_lla Computed link-local address
* @param p_gla Computed global address
* @param p_solNodeMca Computed solicited-node multicast address
* @param p_macSolNodeMca Computed MAC solicited-node multicast address
* @return Execution status
*/
function f_createIpAddresses(
in MacAddress p_macAddr,
in Oct16 p_prefix,
in UInt8 p_prefixLen,
inout Ipv6Address p_lla,
inout Ipv6Address p_gla,
inout Ipv6Address p_solNodeMca,
inout MacAddress p_macSolNodeMca
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)
return FncRetCode {
var UInt8 i;
const UInt8 c_uniIdLen := 64;
var Bit128 v_prefixBits := oct2bit(p_prefix);
var Bit64 v_prefixReadyBits := int2bit(0, 64);
var Oct8 v_prefixReady := int2oct(0,8);
var Oct8 v_interfaceIdReady := int2oct(0,8);
var Oct3 v_rightPartMac := int2oct(0,3);
if (p_prefixLen > 64) {
log("**** f_createIpAddresses: Wrong prefixLen ****");
return e_error;
}
else {
//Fill v_prefixReady with existing Prefix
for (i:=0; i<p_prefixLen; i:=i+1) {
v_prefixReadyBits[i] := v_prefixBits[i];
}
//Complete v_prefixReady with Zero Bytes
for (i:=p_prefixLen; i<64; i:=i+1) {
v_prefixReadyBits[i] := int2bit(0,1);
}
v_prefixReady := bit2oct(v_prefixReadyBits);
}
// compute interface ID
v_interfaceIdReady := f_createUniqueInterfaceId (p_macAddr);
//LLA
if (p_lla != null) {
p_lla := 'FE80000000000000'O & v_interfaceIdReady;
}
if (p_gla != null) {
p_gla := v_prefixReady & v_interfaceIdReady;
}
//get rightPart
for (i:=3; i<lengthof(p_macAddr); i:=i+1) {
v_rightPartMac[i-3] := p_macAddr[i];
}
//SOL_NODE_MCA
if (p_solNodeMca != null) {
p_solNodeMca := 'FF0200000000000000000001FF'O & v_rightPartMac;
}
//MAC_MCA
if (p_macSolNodeMca != null) {
p_macSolNodeMca := '3333FF'O & v_rightPartMac;
}
return e_success;
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/**
* @desc Derives the traffic class from the IPv6 TrafficClass field
* @param p_trafficClass The traffic class value in the IPv6 packet
* @return The traffic class based on the definition in ETSI TS 102 636-6-1 Table 1
*/
function f_getTrafficClassFromIpv6Packet(in UInt8 p_trafficClass) return TrafficClass {
var TrafficClass v_trafficClass;
v_trafficClass.reserved := 0;
v_trafficClass.relevance := 0;
if (p_trafficClass<64) {
v_trafficClass.reliability := e_low;
v_trafficClass.latency := e_high
}
else if (p_trafficClass>63 and p_trafficClass<128) {
v_trafficClass.reliability := e_low;
v_trafficClass.latency := e_medium
}
else if (p_trafficClass>127 and p_trafficClass<193) {
v_trafficClass.reliability := e_low;
v_trafficClass.latency := e_low
}
else {
v_trafficClass.reliability := e_low;
v_trafficClass.latency := e_veryLow
}
return v_trafficClass;
} // end f_getTrafficClassFromPriority
} // end group miscellaneous
} // end LibItsIpv6OverGeoNetworking_Functions