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Kernel: Implement is_zero for RoutingDecision

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This commit is contained in:
Conrad Pankoff 2019-08-29 11:18:38 +10:00 committed by Andreas Kling
parent 302d521485
commit b15a7c435f
Notes: sideshowbarker 2024-07-19 12:26:57 +09:00 
Author: https://github.com/deoxxa
Commit: https://github.com/SerenityOS/serenity/commit/b15a7c435ff
Pull-request: https://github.com/SerenityOS/serenity/pull/499
Reviewed-by: https://github.com/awesomekling
5 changed files with 11 additions and 4 deletions
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2
Kernel/Net/IPv4Socket.cpp
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@ -170,7 +170,7 @@ ssize_t IPv4Socket::sendto(FileDescription&, const void* data, size_t data_lengt
}
auto routing_decision = route_to(m_peer_address, m_local_address);
if (!routing_decision.adapter || routing_decision.next_hop.is_zero())
if (routing_decision.is_zero())
return -EHOSTUNREACH;
if (m_local_address.to_u32() == 0)

5
Kernel/Net/Routing.cpp
View File

@ -11,6 +11,11 @@ Lockable<HashMap<IPv4Address, MACAddress>>& arp_table()
return *the;
}
bool RoutingDecision::is_zero() const
{
return adapter.is_null() || next_hop.is_zero();
}
RoutingDecision route_to(const IPv4Address& target, const IPv4Address& source)
{
auto target_addr = target.to_u32();

2
Kernel/Net/Routing.h
View File

@ -6,6 +6,8 @@ struct RoutingDecision
{
WeakPtr<NetworkAdapter> adapter;
MACAddress next_hop;
bool is_zero() const;
};
RoutingDecision route_to(const IPv4Address& target, const IPv4Address& source);

4
Kernel/Net/TCPSocket.cpp
View File

@ -126,7 +126,7 @@ int TCPSocket::protocol_send(const void* data, int data_length)
void TCPSocket::send_tcp_packet(u16 flags, const void* payload, int payload_size)
{
auto routing_decision = route_to(peer_address(), local_address());
ASSERT(!!routing_decision.adapter);
ASSERT(!routing_decision.is_zero());
auto buffer = ByteBuffer::create_zeroed(sizeof(TCPPacket) + payload_size);
auto& tcp_packet = *(TCPPacket*)(buffer.pointer());
@ -242,7 +242,7 @@ KResult TCPSocket::protocol_listen()
KResult TCPSocket::protocol_connect(FileDescription& description, ShouldBlock should_block)
{
auto routing_decision = route_to(peer_address(), local_address());
if (!routing_decision.adapter || routing_decision.next_hop.is_zero())
if (routing_decision.is_zero())
return KResult(-EHOSTUNREACH);
if (!has_specific_local_address())
set_local_address(routing_decision.adapter->ipv4_address());

2
Kernel/Net/UDPSocket.cpp
View File

@ -64,7 +64,7 @@ int UDPSocket::protocol_receive(const KBuffer& packet_buffer, void* buffer, size
int UDPSocket::protocol_send(const void* data, int data_length)
{
auto routing_decision = route_to(peer_address(), local_address());
if (!routing_decision.adapter)
if (routing_decision.is_zero())
return -EHOSTUNREACH;
auto buffer = ByteBuffer::create_zeroed(sizeof(UDPPacket) + data_length);
auto& udp_packet = *(UDPPacket*)(buffer.pointer());