tappers 0.4.2

Cross-platform TUN, TAP and vETH interfaces
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192

// SPDX-License-Identifier: MIT OR Apache-2.0
//
// Copyright (c) 2024 Nathaniel Bennett <me[at]nathanielbennett[dotcom]>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

//! MacOS-specific TUN/TAP interfaces.
//!

mod feth;
mod utun;

use std::io;

pub use feth::FethTap;
pub use utun::Utun;

use std::net::IpAddr;
#[cfg(not(target_os = "windows"))]
use std::os::fd::{AsFd, AsRawFd, BorrowedFd, RawFd};

use crate::{AddAddress, AddressInfo, DeviceState, Interface};

pub(crate) struct TunImpl {
    tun: Utun,
}

impl TunImpl {
    #[inline]
    pub fn new() -> io::Result<Self> {
        Ok(Self { tun: Utun::new()? })
    }

    #[inline]
    pub fn new_named(if_name: Interface) -> io::Result<Self> {
        Ok(Self {
            tun: Utun::new_named(if_name)?,
        })
    }

    #[inline]
    pub fn addrs(&self) -> io::Result<Vec<AddressInfo>> {
        self.tun.addrs()
    }

    #[inline]
    pub fn add_addr<A: Into<AddAddress>>(&self, req: A) -> io::Result<()> {
        self.tun.add_addr(req)
    }

    #[inline]
    pub fn remove_addr(&self, addr: IpAddr) -> io::Result<()> {
        self.tun.remove_addr(addr)
    }

    #[inline]
    pub fn name(&self) -> io::Result<Interface> {
        self.tun.name()
    }

    #[inline]
    pub fn set_state(&mut self, state: DeviceState) -> io::Result<()> {
        self.tun.set_state(state)
    }

    #[inline]
    pub fn mtu(&self) -> io::Result<usize> {
        self.tun.mtu()
    }

    #[inline]
    pub fn set_nonblocking(&mut self, nonblocking: bool) -> io::Result<()> {
        self.tun.set_nonblocking(nonblocking)
    }

    #[inline]
    pub fn nonblocking(&self) -> io::Result<bool> {
        self.tun.nonblocking()
    }

    #[inline]
    pub fn send(&self, buf: &[u8]) -> io::Result<usize> {
        self.tun.send(buf)
    }

    #[inline]
    pub fn recv(&self, buf: &mut [u8]) -> io::Result<usize> {
        self.tun.recv(buf)
    }
}

#[cfg(not(target_os = "windows"))]
impl AsFd for TunImpl {
    fn as_fd(&self) -> BorrowedFd {
        self.tun.as_fd()
    }
}

#[cfg(not(target_os = "windows"))]
impl AsRawFd for TunImpl {
    fn as_raw_fd(&self) -> RawFd {
        self.tun.as_raw_fd()
    }
}

pub(crate) struct TapImpl {
    tap: FethTap,
}

impl TapImpl {
    #[inline]
    pub fn new() -> io::Result<Self> {
        Ok(Self {
            tap: FethTap::new()?,
        })
    }

    #[inline]
    pub fn new_named(if_name: Interface) -> io::Result<Self> {
        Ok(Self {
            tap: FethTap::new_named(Some(if_name), None)?,
        })
    }

    #[inline]
    pub fn addrs(&self) -> io::Result<Vec<AddressInfo>> {
        self.tap.addrs()
    }

    #[inline]
    pub fn add_addr<A: Into<AddAddress>>(&self, req: A) -> io::Result<()> {
        self.tap.add_addr(req)
    }

    #[inline]
    pub fn remove_addr(&self, addr: IpAddr) -> io::Result<()> {
        self.tap.remove_addr(addr)
    }

    #[inline]
    pub fn name(&self) -> io::Result<Interface> {
        self.tap.name()
    }

    #[inline]
    pub fn set_state(&mut self, state: DeviceState) -> io::Result<()> {
        self.tap.set_state(state)
    }

    #[inline]
    pub fn mtu(&self) -> io::Result<usize> {
        self.tap.mtu()
    }

    #[inline]
    pub fn set_nonblocking(&mut self, nonblocking: bool) -> io::Result<()> {
        self.tap.set_nonblocking(nonblocking)
    }

    #[inline]
    pub fn nonblocking(&self) -> io::Result<bool> {
        self.tap.nonblocking()
    }

    #[inline]
    pub fn send(&self, buf: &[u8]) -> io::Result<usize> {
        self.tap.send(buf)
    }

    #[inline]
    pub fn recv(&self, buf: &mut [u8]) -> io::Result<usize> {
        self.tap.recv(buf)
    }
}

#[cfg(not(target_os = "windows"))]
impl AsFd for TapImpl {
    fn as_fd(&self) -> BorrowedFd {
        self.tap.as_fd()
    }
}

#[cfg(not(target_os = "windows"))]
impl AsRawFd for TapImpl {
    fn as_raw_fd(&self) -> RawFd {
        self.tap.as_raw_fd()
    }
}