| //! Network interface name resolution. |
| //! |
| //! Uses Linux and/or POSIX functions to resolve interface names like "eth0" |
| //! or "socan1" into device numbers. |
| |
| use libc; |
| use libc::c_uint; |
| use {Result, Error, NixPath}; |
| |
| /// Resolve an interface into a interface number. |
| pub fn if_nametoindex<P: ?Sized + NixPath>(name: &P) -> Result<c_uint> { |
| let if_index = name.with_nix_path(|name| unsafe { libc::if_nametoindex(name.as_ptr()) })?; |
| |
| if if_index == 0 { |
| Err(Error::last()) |
| } else { |
| Ok(if_index) |
| } |
| } |
| |
| libc_bitflags!( |
| /// Standard interface flags, used by `getifaddrs` |
| pub struct InterfaceFlags: libc::c_int { |
| /// Interface is running. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| IFF_UP; |
| /// Valid broadcast address set. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| IFF_BROADCAST; |
| /// Internal debugging flag. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| IFF_DEBUG; |
| /// Interface is a loopback interface. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| IFF_LOOPBACK; |
| /// Interface is a point-to-point link. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| IFF_POINTOPOINT; |
| /// Avoid use of trailers. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| #[cfg(any(target_os = "android", |
| target_os = "fuchsia", |
| target_os = "ios", |
| target_os = "linux", |
| target_os = "macos", |
| target_os = "netbsd", |
| target_os = "solaris"))] |
| IFF_NOTRAILERS; |
| /// Interface manages own routes. |
| #[cfg(any(target_os = "dragonfly"))] |
| IFF_SMART; |
| /// Resources allocated. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| #[cfg(any(target_os = "android", |
| target_os = "dragonfly", |
| target_os = "freebsd", |
| target_os = "fuchsia", |
| target_os = "ios", |
| target_os = "linux", |
| target_os = "macos", |
| target_os = "netbsd", |
| target_os = "openbsd", |
| target_os = "solaris"))] |
| IFF_RUNNING; |
| /// No arp protocol, L2 destination address not set. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| IFF_NOARP; |
| /// Interface is in promiscuous mode. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| IFF_PROMISC; |
| /// Receive all multicast packets. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| IFF_ALLMULTI; |
| /// Master of a load balancing bundle. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| #[cfg(any(target_os = "android", target_os = "fuchsia", target_os = "linux"))] |
| IFF_MASTER; |
| /// transmission in progress, tx hardware queue is full |
| #[cfg(any(target_os = "freebsd", |
| target_os = "macos", |
| target_os = "netbsd", |
| target_os = "openbsd", |
| target_os = "ios"))] |
| IFF_OACTIVE; |
| /// Protocol code on board. |
| #[cfg(target_os = "solaris")] |
| IFF_INTELLIGENT; |
| /// Slave of a load balancing bundle. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| #[cfg(any(target_os = "android", target_os = "fuchsia", target_os = "linux"))] |
| IFF_SLAVE; |
| /// Can't hear own transmissions. |
| #[cfg(any(target_os = "dragonfly", |
| target_os = "freebsd", |
| target_os = "macos", |
| target_os = "netbsd", |
| target_os = "openbsd", |
| target_os = "osx"))] |
| IFF_SIMPLEX; |
| /// Supports multicast. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| IFF_MULTICAST; |
| /// Per link layer defined bit. |
| #[cfg(any(target_os = "dragonfly", |
| target_os = "freebsd", |
| target_os = "macos", |
| target_os = "netbsd", |
| target_os = "openbsd", |
| target_os = "ios"))] |
| IFF_LINK0; |
| /// Multicast using broadcast. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_MULTI_BCAST; |
| /// Is able to select media type via ifmap. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| #[cfg(any(target_os = "android", target_os = "fuchsia", target_os = "linux"))] |
| IFF_PORTSEL; |
| /// Per link layer defined bit. |
| #[cfg(any(target_os = "dragonfly", |
| target_os = "freebsd", |
| target_os = "macos", |
| target_os = "netbsd", |
| target_os = "openbsd", |
| target_os = "ios"))] |
| IFF_LINK1; |
| /// Non-unique address. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_UNNUMBERED; |
| /// Auto media selection active. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| #[cfg(any(target_os = "android", target_os = "fuchsia", target_os = "linux"))] |
| IFF_AUTOMEDIA; |
| /// Per link layer defined bit. |
| #[cfg(any(target_os = "dragonfly", |
| target_os = "freebsd", |
| target_os = "macos", |
| target_os = "netbsd", |
| target_os = "openbsd", |
| target_os = "ios"))] |
| IFF_LINK2; |
| /// Use alternate physical connection. |
| #[cfg(any(target_os = "dragonfly", |
| target_os = "freebsd", |
| target_os = "macos", |
| target_os = "ios"))] |
| IFF_ALTPHYS; |
| /// DHCP controlls interface. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_DHCPRUNNING; |
| /// The addresses are lost when the interface goes down. (see |
| /// [`netdevice(7)`](http://man7.org/linux/man-pages/man7/netdevice.7.html)) |
| #[cfg(any(target_os = "android", target_os = "fuchsia", target_os = "linux"))] |
| IFF_DYNAMIC; |
| /// Do not advertise. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_PRIVATE; |
| /// Driver signals L1 up. Volatile. |
| #[cfg(any(target_os = "fuchsia", target_os = "linux"))] |
| IFF_LOWER_UP; |
| /// Interface is in polling mode. |
| #[cfg(any(target_os = "dragonfly"))] |
| IFF_POLLING_COMPAT; |
| /// Unconfigurable using ioctl(2). |
| #[cfg(any(target_os = "freebsd"))] |
| IFF_CANTCONFIG; |
| /// Do not transmit packets. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_NOXMIT; |
| /// Driver signals dormant. Volatile. |
| #[cfg(any(target_os = "fuchsia", target_os = "linux"))] |
| IFF_DORMANT; |
| /// User-requested promisc mode. |
| #[cfg(any(target_os = "dragonfly", target_os = "freebsd"))] |
| IFF_PPROMISC; |
| /// Just on-link subnet. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_NOLOCAL; |
| /// Echo sent packets. Volatile. |
| #[cfg(any(target_os = "fuchsia", target_os = "linux"))] |
| IFF_ECHO; |
| /// User-requested monitor mode. |
| #[cfg(any(target_os = "dragonfly", target_os = "freebsd"))] |
| IFF_MONITOR; |
| /// Address is deprecated. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_DEPRECATED; |
| /// Static ARP. |
| #[cfg(any(target_os = "dragonfly", target_os = "freebsd"))] |
| IFF_STATICARP; |
| /// Address from stateless addrconf. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_ADDRCONF; |
| /// Interface is in polling mode. |
| #[cfg(any(target_os = "dragonfly"))] |
| IFF_NPOLLING; |
| /// Router on interface. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_ROUTER; |
| /// Interface is in polling mode. |
| #[cfg(any(target_os = "dragonfly"))] |
| IFF_IDIRECT; |
| /// Interface is winding down |
| #[cfg(any(target_os = "freebsd"))] |
| IFF_DYING; |
| /// No NUD on interface. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_NONUD; |
| /// Interface is being renamed |
| #[cfg(any(target_os = "freebsd"))] |
| IFF_RENAMING; |
| /// Anycast address. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_ANYCAST; |
| /// Don't exchange routing info. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_NORTEXCH; |
| /// Do not provide packet information |
| #[cfg(any(target_os = "android", target_os = "fuchsia", target_os = "linux"))] |
| IFF_NO_PI as libc::c_int; |
| /// TUN device (no Ethernet headers) |
| #[cfg(any(target_os = "android", target_os = "fuchsia", target_os = "linux"))] |
| IFF_TUN as libc::c_int; |
| /// TAP device |
| #[cfg(any(target_os = "android", target_os = "fuchsia", target_os = "linux"))] |
| IFF_TAP as libc::c_int; |
| /// IPv4 interface. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_IPV4; |
| /// IPv6 interface. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_IPV6; |
| /// in.mpathd test address |
| #[cfg(any(target_os = "solaris"))] |
| IFF_NOFAILOVER; |
| /// Interface has failed |
| #[cfg(any(target_os = "solaris"))] |
| IFF_FAILED; |
| /// Interface is a hot-spare |
| #[cfg(any(target_os = "solaris"))] |
| IFF_STANDBY; |
| /// Functioning but not used |
| #[cfg(any(target_os = "solaris"))] |
| IFF_INACTIVE; |
| /// Interface is offline |
| #[cfg(any(target_os = "solaris"))] |
| IFF_OFFLINE; |
| #[cfg(any(target_os = "solaris"))] |
| IFF_COS_ENABLED; |
| /// Prefer as source addr. |
| #[cfg(any(target_os = "solaris"))] |
| IFF_PREFERRED; |
| /// RFC3041 |
| #[cfg(any(target_os = "solaris"))] |
| IFF_TEMPORARY; |
| /// MTU set with SIOCSLIFMTU |
| #[cfg(any(target_os = "solaris"))] |
| IFF_FIXEDMTU; |
| /// Cannot send / receive packets |
| #[cfg(any(target_os = "solaris"))] |
| IFF_VIRTUAL; |
| /// Local address in use |
| #[cfg(any(target_os = "solaris"))] |
| IFF_DUPLICATE; |
| /// IPMP IP interface |
| #[cfg(any(target_os = "solaris"))] |
| IFF_IPMP; |
| } |
| ); |
