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Kernel: Implement the SO_DONTROUTE SOL_SOCKET-level option

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This commit is contained in:
Idan Horowitz 2021-12-02 01:01:02 +02:00 • committed by Andreas Kling
parent 641498954f
commit 613ade9dec
4 changed files with 20 additions and 2 deletions
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16
Kernel/Net/Socket.cpp
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@ -123,6 +123,14 @@ ErrorOr<void> Socket::setsockopt(int level, int option, Userspace<const void*> u
return ENOTSUP;
}
return {};
case SO_DONTROUTE: {
int routing_disabled;
if (user_value_size != sizeof(routing_disabled))
return EINVAL;
TRY(copy_from_user(&routing_disabled, static_ptr_cast<const int*>(user_value)));
m_routing_disabled = routing_disabled != 0;
return {};
}
default:
dbgln("setsockopt({}) at SOL_SOCKET not implemented.", option);
return ENOPROTOOPT;
@ -216,6 +224,14 @@ ErrorOr<void> Socket::getsockopt(OpenFileDescription&, int level, int option, Us
size = sizeof(accepting_connections);
return copy_to_user(value_size, &size);
}
case SO_DONTROUTE: {
int routing_disabled = m_routing_disabled ? 1 : 0;
if (size < sizeof(routing_disabled))
return EINVAL;
TRY(copy_to_user(static_ptr_cast<int*>(value), &routing_disabled));
size = sizeof(routing_disabled);
return copy_to_user(value_size, &size);
}
default:
dbgln("setsockopt({}) at SOL_SOCKET not implemented.", option);
return ENOPROTOOPT;