TError TNlClass::Create(const TNl &nl) {
struct rtnl_class *cls;
TError error;
int ret;
cls = rtnl_class_alloc();
if (!cls)
return TError(EError::Unknown, "Cannot allocate rtnl_class object");
rtnl_tc_set_ifindex(TC_CAST(cls), Index);
rtnl_tc_set_parent(TC_CAST(cls), Parent);
rtnl_tc_set_handle(TC_CAST(cls), Handle);
ret = rtnl_tc_set_kind(TC_CAST(cls), Kind.c_str());
if (ret < 0) {
error = nl.Error(ret, "Cannot set class kind");
goto free_class;
}
if (Kind == "htb") {
/* must be <= INT32_MAX to prevent overflows in libnl */
uint64_t maxRate = INT32_MAX;
/*
* HTB doesn't allow 0 rate
* FIXME add support for 64-bit rates
*/
rtnl_htb_set_rate(cls, std::min(Rate ?: 1, maxRate));
rtnl_htb_set_ceil(cls, std::min(Ceil ?: maxRate, maxRate));
rtnl_htb_set_prio(cls, Prio);
if (MTU)
rtnl_tc_set_mtu(TC_CAST(cls), MTU);
if (Quantum)
rtnl_htb_set_quantum(cls, Quantum);
if (RateBurst)
rtnl_htb_set_rbuffer(cls, RateBurst);
if (CeilBurst)
rtnl_htb_set_cbuffer(cls, CeilBurst);
}
void nl_cli_tc_parse_mtu(struct rtnl_tc *tc, char *arg)
{
rtnl_tc_set_mtu(tc, nl_cli_parse_u32(arg));
}
