//The following function supposed to be called under m_lock
bool dst_entry_udp_mc::resolve_net_dev()
{
bool ret_val = false;
cache_entry_subject<ip_address, net_device_val*>* p_ces = NULL;
if (m_mc_tx_if_ip.get_in_addr() != INADDR_ANY && !m_mc_tx_if_ip.is_mc()) {
if(m_p_net_dev_entry == NULL && g_p_net_device_table_mgr->register_observer(m_mc_tx_if_ip.get_in_addr(), this, &p_ces)) {
m_p_net_dev_entry = dynamic_cast<net_device_entry*>(p_ces);
}
if (m_p_net_dev_entry) {
m_p_net_dev_entry->get_val(m_p_net_dev_val);
if (m_p_net_dev_val && m_p_net_dev_val->is_valid()) {
ret_val = alloc_transport_dep_res();
}
else {
dst_udp_mc_logdbg("Valid netdev value not found");
}
}
else {
m_b_is_offloaded = false;
dst_udp_mc_logdbg("Netdev is not offloaded fallback to OS");
}
}
else {
ret_val = dst_entry::resolve_net_dev();
}
return ret_val;
}
dst_entry_udp_mc::dst_entry_udp_mc(in_addr_t dst_ip, uint16_t dst_port, uint16_t src_port, in_addr_t tx_if_ip, bool mc_b_loopback, uint8_t mc_ttl, int owner_fd) :
dst_entry_udp(dst_ip, dst_port, src_port, owner_fd),
m_mc_tx_if_ip(tx_if_ip), m_b_mc_loopback_enabled(mc_b_loopback)
{
m_ttl = mc_ttl;
dst_udp_mc_logdbg("%s", to_str().c_str());
}
dst_entry_udp_mc::dst_entry_udp_mc(in_addr_t dst_ip, uint16_t dst_port,
uint16_t src_port, in_addr_t tx_if_ip,
bool mc_b_loopback ,socket_data &sock_data,
resource_allocation_key &ring_alloc_logic):
dst_entry_udp(dst_ip, dst_port, src_port, sock_data, ring_alloc_logic),
m_mc_tx_if_ip(tx_if_ip), m_b_mc_loopback_enabled(mc_b_loopback)
{
dst_udp_mc_logdbg("%s", to_str().c_str());
}
//The following function supposed to be called under m_lock
bool dst_entry_udp_mc::get_net_dev_val()
{
bool ret_val = false;
if (m_p_rt_entry) {
dst_udp_mc_logfunc("%s Using rt table to get netdev", to_str().c_str());
ret_val = m_p_rt_entry->get_val(m_p_rt_val);
}
else {
if (m_p_net_dev_entry) {
ret_val = m_p_net_dev_entry->get_val(m_p_net_dev_val);
dst_udp_mc_logfunc("%s Using directly netdev entry to get net_dev", to_str().c_str());
ret_val = true;
}
else {
dst_udp_mc_logdbg("%s netdev is not offloaded", to_str().c_str());
}
}
return ret_val;
}
dst_entry_udp_mc::~dst_entry_udp_mc()
{
dst_udp_mc_logdbg("%s", to_str().c_str());
}
