socks5_client/
error.rs

1// Set of libraries for privacy-preserving networking apps
2//
3// SPDX-License-Identifier: Apache-2.0
4//
5// Written in 2019-2023 by
6//     Dr. Maxim Orlovsky <orlovsky@cyphernet.org>
7//
8// Copyright 2022-2023 Cyphernet DAO, Switzerland
9//
10// Licensed under the Apache License, Version 2.0 (the "License");
11// you may not use this file except in compliance with the License.
12// You may obtain a copy of the License at
13//
14//     http://www.apache.org/licenses/LICENSE-2.0
15//
16// Unless required by applicable law or agreed to in writing, software
17// distributed under the License is distributed on an "AS IS" BASIS,
18// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19// See the License for the specific language governing permissions and
20// limitations under the License.
21
22#[derive(Copy, Clone, Eq, PartialEq, Debug, Display, Error)]
23#[display(doc_comments)]
24#[repr(u8)]
25pub enum ServerError {
26    /// general SOCKS server failure
27    GeneralFailure = 1,
28    /// connection not allowed by ruleset
29    NotAllowed = 2,
30    /// network unreachable
31    NetworkUnreachable = 3,
32    /// host unreachable
33    HostUnreachable = 4,
34    /// connection refused
35    ConnectionRefused = 5,
36    /// TTL expired
37    TtlExpired = 6,
38    /// command not supported
39    CommandNotSupported = 7,
40    /// address kind not supported
41    AddressNotSupported = 8,
42    /// unknown error type
43    Unknown = 0xFF,
44}
45
46impl From<u8> for ServerError {
47    fn from(value: u8) -> Self {
48        const ALL: [ServerError; 9] = [
49            ServerError::GeneralFailure,
50            ServerError::NotAllowed,
51            ServerError::NetworkUnreachable,
52            ServerError::HostUnreachable,
53            ServerError::ConnectionRefused,
54            ServerError::TtlExpired,
55            ServerError::CommandNotSupported,
56            ServerError::AddressNotSupported,
57            ServerError::Unknown,
58        ];
59
60        for ty in ALL {
61            if ty as u8 == value {
62                return ty;
63            }
64        }
65
66        unreachable!()
67    }
68}
socks5_client/error.rs

socks5_client/
error.rs
