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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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2
Kernel/Net/IPv4Socket.cpp
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@ -210,7 +210,7 @@ ssize_t IPv4Socket::sendto(FileDescription&, const void* data, size_t data_lengt
m_peer_port = ntohs(ia.sin_port);
}
auto routing_decision = route_to(m_peer_address, m_local_address);
auto routing_decision = route_to(m_peer_address, m_local_address, bound_interface());
if (routing_decision.is_zero())
return -EHOSTUNREACH;