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Kernel: Add the SO_BINDTODEVICE socket option

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This patch adds a way for a socket to ask to be routed through a
specific interface.
Currently, this option only applies to sending, however, it should also
apply to receiving...somehow :^)
This commit is contained in:
AnotherTest 2020-04-05 01:16:45 +04:30 • committed by Andreas Kling
parent 7d0bf9b5a9
commit 77191d82dc
10 changed files with 186 additions and 13 deletions
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10
Kernel/Net/Socket.h
View file

@ -33,6 +33,7 @@
#include <Kernel/FileSystem/File.h>
#include <Kernel/KResult.h>
#include <Kernel/Lock.h>
#include <Kernel/Net/NetworkAdapter.h>
#include <Kernel/UnixTypes.h>
namespace Kernel {
@ -57,9 +58,9 @@ public:
bool is_shut_down_for_reading() const { return m_shut_down_for_reading; }
enum class SetupState {
Unstarted, // we haven't tried to set the socket up yet
Unstarted, // we haven't tried to set the socket up yet
InProgress, // we're in the process of setting things up - for TCP maybe we've sent a SYN packet
Completed, // the setup process is complete, but not necessarily successful
Completed, // the setup process is complete, but not necessarily successful
};
enum class Role : u8 {
@ -118,6 +119,7 @@ public:
pid_t acceptor_pid() const { return m_acceptor.pid; }
uid_t acceptor_uid() const { return m_acceptor.uid; }
gid_t acceptor_gid() const { return m_acceptor.gid; }
const RefPtr<NetworkAdapter> bound_interface() const { return m_bound_interface; }
Lock& lock() { return m_lock; }
@ -165,13 +167,15 @@ private:
bool m_shut_down_for_reading { false };
bool m_shut_down_for_writing { false };
RefPtr<NetworkAdapter> m_bound_interface { nullptr };
timeval m_receive_timeout { 0, 0 };
timeval m_send_timeout { 0, 0 };
NonnullRefPtrVector<Socket> m_pending;
};
template<typename SocketType>
template <typename SocketType>
class SocketHandle {
public:
SocketHandle() {}