diff options
Diffstat (limited to 'Kernel/Net/NetworkAdapter.cpp')
| -rw-r--r-- | Kernel/Net/NetworkAdapter.cpp | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/Kernel/Net/NetworkAdapter.cpp b/Kernel/Net/NetworkAdapter.cpp index b1617109b4..f20a963966 100644 --- a/Kernel/Net/NetworkAdapter.cpp +++ b/Kernel/Net/NetworkAdapter.cpp @@ -70,8 +70,14 @@ void NetworkAdapter::send(const MACAddress& destination, const ARPPacket& packet void NetworkAdapter::send_ipv4(const MACAddress& destination_mac, const IPv4Address& destination_ipv4, IPv4Protocol protocol, const u8* payload, size_t payload_size, u8 ttl) { - size_t size_in_bytes = sizeof(EthernetFrameHeader) + sizeof(IPv4Packet) + payload_size; - auto buffer = ByteBuffer::create_zeroed(size_in_bytes); + size_t ipv4_packet_size = sizeof(IPv4Packet) + payload_size; + if (ipv4_packet_size > mtu()) { + // FIXME: Implement IP fragmentation. + ASSERT_NOT_REACHED(); + } + + size_t ethernet_frame_size = sizeof(EthernetFrameHeader) + sizeof(IPv4Packet) + payload_size; + auto buffer = ByteBuffer::create_zeroed(ethernet_frame_size); auto& eth = *(EthernetFrameHeader*)buffer.data(); eth.set_source(mac_address()); eth.set_destination(destination_mac); @@ -87,9 +93,9 @@ void NetworkAdapter::send_ipv4(const MACAddress& destination_mac, const IPv4Addr ipv4.set_ttl(ttl); ipv4.set_checksum(ipv4.compute_checksum()); m_packets_out++; - m_bytes_out += size_in_bytes; + m_bytes_out += ethernet_frame_size; memcpy(ipv4.payload(), payload, payload_size); - send_raw((const u8*)ð, size_in_bytes); + send_raw((const u8*)ð, ethernet_frame_size); } void NetworkAdapter::did_receive(const u8* data, int length) |