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<p align="center"> <a href="CHANGELOG.md" target="_blank">Changelog</a> ยท <a href="#get-started" target="_blank">Get started</a> ยท <a href="https://docs.rs/ssh2-config" target="_blank">Documentation</a> </p> <p align="center">Developed by <a href="https://veeso.github.io/" target="_blank">@veeso</a></p> <p align="center">Current version: 0.2.3 (05/12/2023)</p> <p align="center"> <a href="https://opensource.org/licenses/MIT" ><img src="https://img.shields.io/badge/License-MIT-teal.svg" alt="License-MIT" /></a> <a href="https://github.com/veeso/ssh2-config/stargazers" ><img src="https://img.shields.io/github/stars/veeso/ssh2-config.svg" alt="Repo stars" /></a> <a href="https://crates.io/crates/ssh2-config" ><img src="https://img.shields.io/crates/d/ssh2-config.svg" alt="Downloads counter" /></a> <a href="https://crates.io/crates/ssh2-config" ><img src="https://img.shields.io/crates/v/ssh2-config.svg" alt="Latest version" /></a> <a href="https://ko-fi.com/veeso"> <img src="https://img.shields.io/badge/donate-ko--fi-red" alt="Ko-fi" /></a> </p> <p align="center"> <a href="https://github.com/veeso/ssh2-config/actions" ><img src="https://github.com/veeso/ssh2-config/workflows/Build/badge.svg" alt="Build" /></a> <a href="https://coveralls.io/github/veeso/ssh2-config" ><img src="https://coveralls.io/repos/github/veeso/ssh2-config/badge.svg" alt="Coveralls" /></a> <a href="https://docs.rs/ssh2-config" ><img src="https://docs.rs/ssh2-config/badge.svg" alt="Docs" /></a> </p>

About ssh2-config

ssh2-config a library which provides a parser for the SSH configuration file, to be used in pair with the ssh2 crate.

This library provides a method to parse the configuration file and returns the configuration parsed into a structure. The SshConfig structure provides all the attributes which can be used to configure the ssh2 Session and to resolve the host, port and username.

Once the configuration has been parsed you can use the query(&str) method to query configuration for a certain host, based on the configured patterns.

Even if many attributes are not exposed, since not supported, there is anyway a validation of the configuration, so invalid configuration will result in a parsing error.

Exposed attributes

Missing features


Get started ๐Ÿš€

First of all, add ssh2-config to your dependencies

[dependencies]
ssh2-config = "^0.2"

then parse the configuration

use ssh2_config::{ParseRule, SshConfig};
use std::fs::File;
use std::io::BufReader;

let mut reader = BufReader::new(File::open(config_path).expect("Could not open configuration file"));
let config = SshConfig::default().parse(&mut reader, ParseRule::STRICT).expect("Failed to parse configuration");

// Query attributes for a certain host
let params = config.query("192.168.1.2");

then you can use the parsed parameters to configure the session:

use ssh2::Session;
use ssh2_config::{HostParams};

fn configure_session(session: &mut Session, params: &HostParams) {
    if let Some(compress) = params.compression {
        session.set_compress(compress);
    }
    if params.tcp_keep_alive.unwrap_or(false) && params.server_alive_interval.is_some() {
        let interval = params.server_alive_interval.unwrap().as_secs() as u32;
        session.set_keepalive(true, interval);
    }
    // algos
    if let Some(algos) = params.kex_algorithms.as_deref() {
        if let Err(err) = session.method_pref(MethodType::Kex, algos.join(",").as_str()) {
            panic!("Could not set KEX algorithms: {}", err);
        }
    }
    if let Some(algos) = params.host_key_algorithms.as_deref() {
        if let Err(err) = session.method_pref(MethodType::HostKey, algos.join(",").as_str()) {
            panic!("Could not set host key algorithms: {}", err);
        }
    }
    if let Some(algos) = params.ciphers.as_deref() {
        if let Err(err) = session.method_pref(MethodType::CryptCs, algos.join(",").as_str()) {
            panic!("Could not set crypt algorithms (client-server): {}", err);
        }
        if let Err(err) = session.method_pref(MethodType::CryptSc, algos.join(",").as_str()) {
            panic!("Could not set crypt algorithms (server-client): {}", err);
        }
    }
    if let Some(algos) = params.mac.as_deref() {
        if let Err(err) = session.method_pref(MethodType::MacCs, algos.join(",").as_str()) {
            panic!("Could not set MAC algorithms (client-server): {}", err);
        }
        if let Err(err) = session.method_pref(MethodType::MacSc, algos.join(",").as_str()) {
            panic!("Could not set MAC algorithms (server-client): {}", err);
        }
    }
}

fn auth_with_rsakey(
    session: &mut Session,
    params: &HostParams,
    username: &str,
    password: Option<&str>
) {
    for identity_file in params.identity_file.unwrap_or_default().iter() {
        if let Ok(_) = session.userauth_pubkey_file(username, None, identity_file, password) {
            break;
        } 
    }
}

Examples

You can view a working examples of an implementation of ssh2-config with ssh2 in the examples folder at client.rs.

You can run the example with

cargo run --example client -- <remote-host> [config-file-path]

Support the developer โ˜•

If you like ssh2-config and you're grateful for the work I've done, please consider a little donation ๐Ÿฅณ

You can make a donation with one of these platforms:

ko-fi PayPal


Contributing and issues ๐Ÿค๐Ÿป

Contributions, bug reports, new features and questions are welcome! ๐Ÿ˜‰ If you have any question or concern, or you want to suggest a new feature, or you want just want to improve ssh2-config, feel free to open an issue or a PR.

Please follow our contributing guidelines


Changelog โณ

View ssh2-config's changelog HERE


License ๐Ÿ“ƒ

ssh2-config is licensed under the MIT license.

You can read the entire license HERE