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publish MTU for ipv6 SSU2 address. Max MTU of 1488 for SSU1

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orignal 2022-07-13 15:52:19 -04:00
parent 5c62726992
commit 1dd2bd0013
1 changed files with 6 additions and 4 deletions
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10
libi2pd/RouterContext.cpp
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@ -421,16 +421,18 @@ namespace i2p
!i2p::util::net::IsYggdrasilAddress (address->host))
{
address->host = host;
if (host.is_v6 () && address->transportStyle == i2p::data::RouterInfo::eTransportSSU)
if (host.is_v6 () && (address->transportStyle == i2p::data::RouterInfo::eTransportSSU || address->IsSSU2 ()))
{
// update MTU
auto mtu = i2p::util::net::GetMTU (host);
if (mtu)
{
LogPrint (eLogDebug, "Router: Our v6 MTU=", mtu);
if (mtu > 1472) { // TODO: magic constant
mtu = 1472;
LogPrint(eLogWarning, "Router: MTU dropped to upper limit of 1472 bytes");
int maxMTU = address->IsSSU2 () ? 1500 : 1488; // must be multiple of 16 for SSU1
if (mtu > maxMTU)
{
mtu = maxMTU;
LogPrint(eLogWarning, "Router: MTU dropped to upper limit of ", maxMTU, " bytes");
}
if (address->ssu) address->ssu->mtu = mtu;
}