ThreadError Local::UpdateRloc(PrefixTlv &aPrefix)
{
for (NetworkDataTlv *cur = reinterpret_cast<NetworkDataTlv *>(aPrefix.GetSubTlvs());
cur < reinterpret_cast<NetworkDataTlv *>(aPrefix.GetSubTlvs() + aPrefix.GetSubTlvsLength());
cur = cur->GetNext())
{
switch (cur->GetType())
{
case NetworkDataTlv::kTypeHasRoute:
UpdateRloc(*reinterpret_cast<HasRouteTlv *>(cur));
break;
case NetworkDataTlv::kTypeBorderRouter:
UpdateRloc(*reinterpret_cast<BorderRouterTlv *>(cur));
break;
default:
assert(false);
break;
}
}
return kThreadError_None;
}
void NetworkData::RemoveTemporaryData(uint8_t *aData, uint8_t &aDataLength)
{
NetworkDataTlv *cur = reinterpret_cast<NetworkDataTlv *>(aData);
NetworkDataTlv *end;
PrefixTlv *prefix;
uint8_t length;
uint8_t *dst;
uint8_t *src;
while (1)
{
end = reinterpret_cast<NetworkDataTlv *>(aData + aDataLength);
if (cur >= end)
{
break;
}
switch (cur->GetType())
{
case NetworkDataTlv::kTypePrefix:
{
prefix = reinterpret_cast<PrefixTlv *>(cur);
RemoveTemporaryData(aData, aDataLength, *prefix);
if (prefix->GetSubTlvsLength() == 0)
{
length = sizeof(NetworkDataTlv) + cur->GetLength();
dst = reinterpret_cast<uint8_t *>(cur);
src = reinterpret_cast<uint8_t *>(cur->GetNext());
memmove(dst, src, aDataLength - (src - aData));
aDataLength -= length;
continue;
}
otDumpDebgNetData("remove prefix done", mTlvs, mLength);
break;
}
default:
{
// remove temporary tlv
if (!cur->IsStable())
{
length = sizeof(NetworkDataTlv) + cur->GetLength();
dst = reinterpret_cast<uint8_t *>(cur);
src = reinterpret_cast<uint8_t *>(cur->GetNext());
memmove(dst, src, aDataLength - (src - aData));
aDataLength -= length;
continue;
}
break;
}
}
cur = cur->GetNext();
}
otDumpDebgNetData("remove done", aData, aDataLength);
}
void NetworkData::RemoveTemporaryData(uint8_t *aData, uint8_t &aDataLength, PrefixTlv &aPrefix)
{
NetworkDataTlv *cur = reinterpret_cast<NetworkDataTlv *>(aPrefix.GetSubTlvs());
NetworkDataTlv *end;
BorderRouterTlv *borderRouter;
HasRouteTlv *hasRoute;
ContextTlv *context;
BorderRouterEntry *borderRouterEntry;
HasRouteEntry *hasRouteEntry;
uint8_t length;
uint8_t contextId;
uint8_t *dst;
uint8_t *src;
while (1)
{
end = reinterpret_cast<NetworkDataTlv *>(aPrefix.GetSubTlvs() + aPrefix.GetSubTlvsLength());
if (cur >= end)
{
break;
}
if (cur->IsStable())
{
switch (cur->GetType())
{
case NetworkDataTlv::kTypeBorderRouter:
{
borderRouter = FindBorderRouter(aPrefix);
if ((context = FindContext(aPrefix)) == NULL)
{
break;
}
contextId = context->GetContextId();
// replace p_border_router_16
for (int i = 0; i < borderRouter->GetNumEntries(); i++)
{
borderRouterEntry = borderRouter->GetEntry(i);
if (borderRouterEntry->IsDhcp() || borderRouterEntry->IsConfigure())
{
borderRouterEntry->SetRloc(0xfc00 | contextId);
}
else
{
borderRouterEntry->SetRloc(0xfffe);
}
}
break;
}
case NetworkDataTlv::kTypeHasRoute:
{
hasRoute = FindHasRoute(aPrefix);
// replace r_border_router_16
for (int j = 0; j < hasRoute->GetNumEntries(); j++)
{
hasRouteEntry = hasRoute->GetEntry(j);
hasRouteEntry->SetRloc(0xfffe);
}
break;
}
default:
{
break;
}
}
// keep stable tlv
cur = cur->GetNext();
}
else
{
// remove temporary tlv
length = sizeof(NetworkDataTlv) + cur->GetLength();
dst = reinterpret_cast<uint8_t *>(cur);
src = reinterpret_cast<uint8_t *>(cur->GetNext());
memmove(dst, src, aDataLength - (src - aData));
aPrefix.SetSubTlvsLength(aPrefix.GetSubTlvsLength() - length);
aDataLength -= length;
}
}
}
