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
|
use std::{
collections::HashMap,
fmt,
net::{IpAddr, SocketAddr},
};
#[derive(PartialEq, Hash, Eq, Clone, PartialOrd, Ord, Debug, Copy)]
pub enum Protocol {
Tcp,
Udp,
}
impl Protocol {
#[allow(dead_code)]
pub fn from_str(string: &str) -> Option<Self> {
match string {
"TCP" => Some(Protocol::Tcp),
"UDP" => Some(Protocol::Udp),
_ => None,
}
}
}
impl fmt::Display for Protocol {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Protocol::Tcp => write!(f, "tcp"),
Protocol::Udp => write!(f, "udp"),
}
}
}
#[derive(Clone, Ord, PartialOrd, PartialEq, Eq, Hash, Debug, Copy)]
pub struct Socket {
pub ip: IpAddr,
pub port: u16,
}
#[derive(PartialEq, Hash, Eq, Clone, PartialOrd, Ord, Debug, Copy)]
pub struct LocalSocket {
pub ip: IpAddr,
pub port: u16,
pub protocol: Protocol,
}
impl fmt::Display for LocalSocket {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let LocalSocket { ip, port, protocol } = self;
match ip {
IpAddr::V4(v4) => write!(f, "{protocol}://{v4}:{port}"),
IpAddr::V6(v6) => write!(f, "{protocol}://[{v6}]:{port}"),
}
}
}
#[derive(PartialEq, Hash, Eq, Clone, PartialOrd, Ord, Debug, Copy)]
pub struct Connection {
pub remote_socket: Socket,
pub local_socket: LocalSocket,
}
pub fn display_ip_or_host(ip: IpAddr, ip_to_host: &HashMap<IpAddr, String>) -> String {
match ip_to_host.get(&ip) {
Some(host) => host.clone(),
None => ip.to_string(),
}
}
pub fn display_connection_string(
connection: &Connection,
ip_to_host: &HashMap<IpAddr, String>,
interface_name: &str,
) -> String {
format!(
"<{interface_name}>:{} => {}:{} ({})",
connection.local_socket.port,
display_ip_or_host(connection.remote_socket.ip, ip_to_host),
connection.remote_socket.port,
connection.local_socket.protocol,
)
}
impl Connection {
pub fn new(
remote_socket: SocketAddr,
local_ip: IpAddr,
local_port: u16,
protocol: Protocol,
) -> Self {
Connection {
remote_socket: Socket {
ip: remote_socket.ip(),
port: remote_socket.port(),
},
local_socket: LocalSocket {
ip: local_ip,
port: local_port,
protocol,
},
}
}
}
|
