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nic_router: do link garbage collect on each packet 

Previously, garbage collect was only done when an incoming packet passed the
Ethernet checks. Now it is really done first when receiving a packet at an
interface.

Ref #2490
This commit is contained in:
Martin Stein 2017-09-25 17:43:00 +02:00 committed by Christian Helmuth
parent 215937ff0f
commit 03144093b3
1 changed files with 5 additions and 3 deletions
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8
repos/os/src/server/nic_router/interface.cc
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@ -306,9 +306,6 @@ void Interface::_handle_ip(Ethernet_frame &eth,
Genode::size_t const eth_size,
Packet_descriptor const &pkt)
{
_destroy_closed_links<Udp_link>(_closed_udp_links, _alloc);
_destroy_closed_links<Tcp_link>(_closed_tcp_links, _alloc);
/* read packet information */
Ipv4_packet &ip = *new (eth.data<void>())
Ipv4_packet(eth_size - sizeof(Ethernet_frame));
@ -542,6 +539,11 @@ void Interface::_handle_eth(void *const eth_base,
size_t const eth_size,
Packet_descriptor const &pkt)
{
/* do garbage collection over transport-layer links */
_destroy_closed_links<Udp_link>(_closed_udp_links, _alloc);
_destroy_closed_links<Tcp_link>(_closed_tcp_links, _alloc);
/* inspect and handle ethernet frame */
try {
Ethernet_frame * const eth = new (eth_base) Ethernet_frame(eth_size);
if (_config().verbose()) {