From c33cfbb4f0fa9ffc87ff4cf2d5676b77de12b5c4 Mon Sep 17 00:00:00 2001 From: Jean Pierre Dudey Date: Fri, 8 May 2020 14:36:09 -0500 Subject: [PATCH] Add SO_BINDTODEVICE sockopt This is available only on Linux as far I know, [socket(7)](https://linux.die.net/man/7/socket) has some information about the `SO_BINDTODEVICE` sockopt. In simple words it binds a socket to an specific network device (specified as an string like "wlo1", "eth0", etc.), to only process packets from that device. Signed-off-by: Jean Pierre Dudey --- src/sys/socket/sockopt.rs | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/sys/socket/sockopt.rs b/src/sys/socket/sockopt.rs index d0ef4b6540..698d05f63f 100644 --- a/src/sys/socket/sockopt.rs +++ b/src/sys/socket/sockopt.rs @@ -259,6 +259,8 @@ sockopt_impl!(SetOnly, RcvBufForce, libc::SOL_SOCKET, libc::SO_RCVBUFFORCE, usiz sockopt_impl!(SetOnly, SndBufForce, libc::SOL_SOCKET, libc::SO_SNDBUFFORCE, usize); sockopt_impl!(GetOnly, SockType, libc::SOL_SOCKET, libc::SO_TYPE, super::SockType); sockopt_impl!(GetOnly, AcceptConn, libc::SOL_SOCKET, libc::SO_ACCEPTCONN, bool); +#[cfg(target_os = "linux")] +sockopt_impl!(Both, BindToDevice, libc::SOL_SOCKET, libc::SO_BINDTODEVICE, OsString<[u8; libc::IFNAMSIZ]>); #[cfg(any(target_os = "android", target_os = "linux"))] sockopt_impl!(GetOnly, OriginalDst, libc::SOL_IP, libc::SO_ORIGINAL_DST, libc::sockaddr_in); sockopt_impl!(Both, ReceiveTimestamp, libc::SOL_SOCKET, libc::SO_TIMESTAMP, bool);