diff options
Diffstat (limited to 'net_util/src/lib.rs')
| -rw-r--r-- | net_util/src/lib.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/net_util/src/lib.rs b/net_util/src/lib.rs index 066b7d8..456608c 100644 --- a/net_util/src/lib.rs +++ b/net_util/src/lib.rs @@ -170,6 +170,7 @@ impl Display for MacAddress { pub struct Tap { tap_file: File, if_name: [u8; 16usize], + if_flags: ::std::os::raw::c_short, } impl Tap { @@ -187,6 +188,7 @@ impl Tap { Ok(Tap { tap_file, if_name: ifreq.ifr_ifrn.ifrn_name.as_ref().clone(), + if_flags: ifreq.ifr_ifru.ifru_flags.as_ref().clone(), }) } } @@ -225,6 +227,9 @@ pub trait TapT: Read + Write + AsRawFd + Send + Sized { fn set_vnet_hdr_size(&self, size: c_int) -> Result<()>; fn get_ifreq(&self) -> net_sys::ifreq; + + /// Get the interface flags + fn if_flags(&self) -> u32; } impl TapT for Tap { @@ -278,6 +283,7 @@ impl TapT for Tap { Ok(Tap { tap_file: tuntap, if_name: unsafe { *ifreq.ifr_ifrn.ifrn_name.as_ref() }, + if_flags: unsafe { *ifreq.ifr_ifru.ifru_flags.as_ref() }, }) } @@ -465,8 +471,22 @@ impl TapT for Tap { ifrn_name.clone_from_slice(&self.if_name); } + // This sets the flags with which the interface was created, which is the only entry we set + // on the second union. + unsafe { + ifreq + .ifr_ifru + .ifru_flags + .as_mut() + .clone_from(&self.if_flags); + } + ifreq } + + fn if_flags(&self) -> u32 { + self.if_flags as u32 + } } impl Read for Tap { @@ -554,6 +574,10 @@ pub mod fakes { let ifreq: net_sys::ifreq = Default::default(); ifreq } + + fn if_flags(&self) -> u32 { + net_sys::IFF_TAP + } } impl Drop for FakeTap { |