ssh_jumper_model/
error.rs

1use std::{fmt, io, net::SocketAddr};
2
3use crate::HostSocketParams;
4
5#[derive(Debug)]
6pub enum Error {
7    JumpHostConnectFail {
8        jump_host_addr: HostSocketParams<'static>,
9        io_error: io::Error,
10    },
11    AsyncSessionInitialize(io::Error),
12    DnsResolverCreate(async_std_resolver::ResolveError),
13    DnsResolverLookup(async_std_resolver::ResolveError),
14    JumpHostIpResolutionFail {
15        jump_host_addr: String,
16    },
17    LocalSocketAddr {
18        local_socket: SocketAddr,
19        io_error: io::Error,
20    },
21    LocalSocketBind {
22        local_socket: SocketAddr,
23        io_error: io::Error,
24    },
25    PrivateKeyPlainPath(plain_path::HomeDirNotFound),
26    SshHandshakeFail(io::Error),
27    SshUserAuthFail(io::Error),
28    SshUserAuthError(async_ssh2_lite::ssh2::Error),
29    SshUserAuthUnknownError,
30    SshTunnelOpenFail(io::Error),
31    SshTunnelListenerCreate(io::Error),
32    SshTunnelStreamCreate(io::Error),
33    SshStreamerSpawnFail(tokio::task::JoinError),
34}
35
36impl fmt::Display for Error {
37    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
38        match self {
39            Self::JumpHostConnectFail { jump_host_addr, .. } => {
40                write!(f, "Failed to connect to jump host: `{}`.", jump_host_addr)
41            }
42            Self::AsyncSessionInitialize(..) => {
43                write!(f, "Failed to initialize SSH session with jump host.")
44            }
45            Self::DnsResolverCreate(..) => write!(f, "Failed to construct DNS resolver."),
46            Self::DnsResolverLookup(resolve_error) => {
47                write!(f, "Failed to lookup IP for jump host: `{}`.", resolve_error)
48            }
49            Self::JumpHostIpResolutionFail { jump_host_addr } => {
50                write!(
51                    f,
52                    "Failed to find IPv4 address for jump host: `{}`.",
53                    jump_host_addr
54                )
55            }
56            Self::LocalSocketAddr { local_socket, .. } => write!(
57                f,
58                "Failed to retrieve socket address after binding to: {}.",
59                local_socket
60            ),
61            Self::LocalSocketBind { local_socket, .. } => {
62                write!(f, "Failed to bind to local socket: {}.", local_socket)
63            }
64            Self::PrivateKeyPlainPath(..) => write!(f, "Failed to get private key plain path."),
65            Self::SshHandshakeFail(..) => write!(f, "SSH handshake with jump host failed."),
66            Self::SshUserAuthFail(..) => write!(f, "SSH user auth with jump host failed."),
67            Self::SshUserAuthError(..) => write!(f, "SSH user auth with jump host failed.",),
68            Self::SshUserAuthUnknownError => {
69                write!(f, "SSH user auth with jump host failed with unknown cause.")
70            }
71            Self::SshTunnelOpenFail(..) => write!(f, "Failed to open SSH tunnel."),
72            Self::SshTunnelListenerCreate(..) => write!(f, "Failed to spawn SSH tunnel listener"),
73            Self::SshTunnelStreamCreate(..) => write!(f, "Failed to spawn SSH tunnel stream."),
74            Self::SshStreamerSpawnFail(..) => write!(f, "Failed to join SSH tunnel streamer task."),
75        }
76    }
77}
78
79impl std::error::Error for Error {
80    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
81        match self {
82            Self::JumpHostConnectFail { io_error, .. } => Some(io_error),
83            Self::AsyncSessionInitialize(io_error) => Some(io_error),
84            Self::DnsResolverCreate(resolve_error) => Some(resolve_error),
85            Self::DnsResolverLookup(resolve_error) => Some(resolve_error),
86            Self::JumpHostIpResolutionFail { .. } => None,
87            Self::LocalSocketAddr { io_error, .. } => Some(io_error),
88            Self::LocalSocketBind { io_error, .. } => Some(io_error),
89            Self::PrivateKeyPlainPath(home_dir_not_found) => Some(home_dir_not_found),
90            Self::SshHandshakeFail(io_error) => Some(io_error),
91            Self::SshUserAuthFail(io_error) => Some(io_error),
92            Self::SshUserAuthError(ssh2_error) => Some(ssh2_error),
93            Self::SshUserAuthUnknownError => None,
94            Self::SshTunnelOpenFail(io_error) => Some(io_error),
95            Self::SshTunnelListenerCreate(io_error) => Some(io_error),
96            Self::SshTunnelStreamCreate(io_error) => Some(io_error),
97            Self::SshStreamerSpawnFail(join_error) => Some(join_error),
98        }
99    }
100}
ssh_jumper_model/error.rs

ssh_jumper_model/
error.rs
