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Everywhere: Make ByteBuffer::{create_*,copy}() OOM-safe

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This commit is contained in:
Ali Mohammad Pur
2021-09-06 03:29:52 +04:30
committed by Andreas Kling
parent 3a9f00c59b
commit 97e97bccab
105 changed files with 629 additions and 290 deletions
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8
Kernel/Net/NetworkAdapter.cpp
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@@ -33,8 +33,12 @@ void NetworkAdapter::send_packet(ReadonlyBytes packet)
void NetworkAdapter::send(const MACAddress& destination, const ARPPacket& packet)
{
size_t size_in_bytes = sizeof(EthernetFrameHeader) + sizeof(ARPPacket);
auto buffer = NetworkByteBuffer::create_zeroed(size_in_bytes);
auto* eth = (EthernetFrameHeader*)buffer.data();
auto buffer_result = NetworkByteBuffer::create_zeroed(size_in_bytes);
if (!buffer_result.has_value()) {
dbgln("Dropping ARP packet targeted at {} as there is not enough memory to buffer it", packet.target_hardware_address().to_string());
return;
}
auto* eth = (EthernetFrameHeader*)buffer_result->data();
eth->set_source(mac_address());
eth->set_destination(destination);
eth->set_ether_type(EtherType::ARP);