101 lines
2.6 KiB
Rust
101 lines
2.6 KiB
Rust
use std::mem;
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use libc::{c_char, c_int, c_short, c_uint, c_ulong, sockaddr};
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pub use libc::{
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c_void,
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sockaddr_ctl,
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sockaddr_in,
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socklen_t,
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AF_SYSTEM,
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AF_SYS_CONTROL,
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IFNAMSIZ,
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SYSPROTO_CONTROL,
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};
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use nix::{
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ioctl_read_bad,
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ioctl_readwrite,
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ioctl_write_ptr_bad,
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request_code_readwrite,
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request_code_write,
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};
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pub const UTUN_CONTROL_NAME: &str = "com.apple.net.utun_control";
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pub const UTUN_OPT_IFNAME: libc::c_int = 2;
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pub const MAX_KCTL_NAME: usize = 96;
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#[repr(C)]
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#[derive(Copy, Clone, Debug)]
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pub struct ctl_info {
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pub ctl_id: u32,
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pub ctl_name: [u8; MAX_KCTL_NAME],
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}
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#[repr(C)]
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#[derive(Copy, Clone, Debug)]
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pub struct ifkpi {
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pub ifk_module_id: c_uint,
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pub ifk_type: c_uint,
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pub ifk_ptr: *mut c_void,
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}
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#[repr(C)]
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#[derive(Copy, Clone, Debug)]
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pub struct ifdevmtu {
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pub ifdm_current: c_int,
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pub ifdm_min: c_int,
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pub ifdm_max: c_int,
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}
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#[repr(C)]
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pub union ifr_ifru {
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pub ifru_addr: sockaddr,
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pub ifru_dstaddr: sockaddr,
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pub ifru_broadaddr: sockaddr,
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pub ifru_netmask: sockaddr,
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pub ifru_flags: c_short,
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pub ifru_metric: c_int,
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pub ifru_mtu: c_int,
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pub ifru_phys: c_int,
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pub ifru_media: c_int,
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pub ifru_intval: c_int,
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pub ifru_data: *mut c_char,
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pub ifru_devmtu: ifdevmtu,
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pub ifru_kpi: ifkpi,
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pub ifru_wake_flags: u32,
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pub ifru_route_refcnt: u32,
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pub ifru_cap: [c_int; 2],
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pub ifru_functional_type: u32,
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}
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#[repr(C)]
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pub struct ifreq {
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pub ifr_name: [c_char; IFNAMSIZ],
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pub ifr_ifru: ifr_ifru,
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}
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pub const SIOCSIFADDR: c_ulong = request_code_write!(b'i', 12, mem::size_of::<ifreq>());
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pub const SIOCGIFMTU: c_ulong = request_code_readwrite!(b'i', 51, mem::size_of::<ifreq>());
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pub const SIOCSIFMTU: c_ulong = request_code_write!(b'i', 52, mem::size_of::<ifreq>());
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pub const SIOCGIFNETMASK: c_ulong = request_code_readwrite!(b'i', 37, mem::size_of::<ifreq>());
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pub const SIOCSIFNETMASK: c_ulong = request_code_write!(b'i', 22, mem::size_of::<ifreq>());
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#[macro_export]
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macro_rules! syscall {
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($call: ident ( $($arg: expr),* $(,)* ) ) => {{
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match unsafe { ::libc::$call($($arg, )*) } {
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-1 => Err(::std::io::Error::last_os_error()),
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res => Ok(res),
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}
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}};
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}
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pub use syscall;
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ioctl_readwrite!(resolve_ctl_info, b'N', 3, ctl_info);
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ioctl_read_bad!(if_get_addr, libc::SIOCGIFADDR, ifreq);
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ioctl_read_bad!(if_get_mtu, SIOCGIFMTU, ifreq);
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ioctl_read_bad!(if_get_netmask, SIOCGIFNETMASK, ifreq);
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ioctl_write_ptr_bad!(if_set_addr, SIOCSIFADDR, ifreq);
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ioctl_write_ptr_bad!(if_set_mtu, SIOCSIFMTU, ifreq);
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ioctl_write_ptr_bad!(if_set_netmask, SIOCSIFNETMASK, ifreq);
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