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//! Rust bindings to libssh2, an SSH client library. //! //! This library intends to provide a safe interface to the libssh2 library. It //! will build the library if it's not available on the local system, and //! otherwise link to an installed copy. //! //! Note that libssh2 only supports SSH *clients*, not SSH *servers*. //! Additionally it only supports protocol v2, not protocol v1. //! //! # Examples //! //! ## Inspecting ssh-agent //! //! ```no_run //! use ssh2::Session; //! //! // Almost all APIs require a `Session` to be available //! let sess = Session::new().unwrap(); //! let mut agent = sess.agent().unwrap(); //! //! // Connect the agent and request a list of identities //! agent.connect().unwrap(); //! agent.list_identities().unwrap(); //! //! for identity in agent.identities() { //! let identity = identity.unwrap(); // assume no I/O errors //! println!("{}", identity.comment()); //! let pubkey = identity.blob(); //! } //! ``` //! //! ## Authenticating with ssh-agent //! //! ```no_run //! use std::net::TcpStream; //! use ssh2::Session; //! //! // Connect to the local SSH server //! let tcp = TcpStream::connect("127.0.0.1:22").unwrap(); //! let mut sess = Session::new().unwrap(); //! sess.set_tcp_stream(tcp); //! sess.handshake().unwrap(); //! //! // Try to authenticate with the first identity in the agent. //! sess.userauth_agent("username").unwrap(); //! //! // Make sure we succeeded //! assert!(sess.authenticated()); //! ``` //! //! ## Authenticating with a password //! //! ```no_run //! use std::net::TcpStream; //! use ssh2::Session; //! //! // Connect to the local SSH server //! let tcp = TcpStream::connect("127.0.0.1:22").unwrap(); //! let mut sess = Session::new().unwrap(); //! sess.set_tcp_stream(tcp); //! sess.handshake().unwrap(); //! //! sess.userauth_password("username", "password").unwrap(); //! assert!(sess.authenticated()); //! ``` //! //! ## Run a command //! //! ```no_run //! use std::io::prelude::*; //! use std::net::{TcpStream}; //! use ssh2::Session; //! //! // Connect to the local SSH server //! let tcp = TcpStream::connect("127.0.0.1:22").unwrap(); //! let mut sess = Session::new().unwrap(); //! sess.set_tcp_stream(tcp); //! sess.handshake().unwrap(); //! sess.userauth_agent("username").unwrap(); //! //! let mut channel = sess.channel_session().unwrap(); //! channel.exec("ls").unwrap(); //! let mut s = String::new(); //! channel.read_to_string(&mut s).unwrap(); //! println!("{}", s); //! channel.wait_close(); //! println!("{}", channel.exit_status().unwrap()); //! ``` //! //! ## Upload a file //! //! ```no_run //! use std::io::prelude::*; //! use std::net::TcpStream; //! use std::path::Path; //! use ssh2::Session; //! //! // Connect to the local SSH server //! let tcp = TcpStream::connect("127.0.0.1:22").unwrap(); //! let mut sess = Session::new().unwrap(); //! sess.set_tcp_stream(tcp); //! sess.handshake().unwrap(); //! sess.userauth_agent("username").unwrap(); //! //! let mut remote_file = sess.scp_send(Path::new("remote"), //! 0o644, 10, None).unwrap(); //! remote_file.write(b"1234567890").unwrap(); //! ``` //! //! ## Download a file //! //! ```no_run //! use std::io::prelude::*; //! use std::net::TcpStream; //! use std::path::Path; //! use ssh2::Session; //! //! // Connect to the local SSH server //! let tcp = TcpStream::connect("127.0.0.1:22").unwrap(); //! let mut sess = Session::new().unwrap(); //! sess.set_tcp_stream(tcp); //! sess.handshake().unwrap(); //! sess.userauth_agent("username").unwrap(); //! //! let (mut remote_file, stat) = sess.scp_recv(Path::new("remote")).unwrap(); //! println!("remote file size: {}", stat.size()); //! let mut contents = Vec::new(); //! remote_file.read_to_end(&mut contents).unwrap(); //! // ... //! ``` #![doc(html_root_url = "https://docs.rs/ssh2")] #![allow(trivial_numeric_casts)] #![deny(missing_docs, unused_results)] #![cfg_attr(test, deny(warnings))] extern crate libc; extern crate libssh2_sys as raw; #[macro_use] extern crate bitflags; use std::ffi::CStr; pub use agent::{Agent, Identities, PublicKey}; pub use channel::{Channel, ExitSignal, ReadWindow, Stream, WriteWindow}; pub use error::Error; pub use knownhosts::{Host, Hosts, KnownHosts}; pub use listener::Listener; use session::SessionInner; pub use session::{KeyboardInteractivePrompt, Prompt, ScpFileStat, Session}; pub use sftp::{File, FileStat, FileType, OpenType}; pub use sftp::{OpenFlags, RenameFlags, Sftp}; pub use DisconnectCode::{AuthCancelledByUser, TooManyConnections}; pub use DisconnectCode::{ByApplication, ConnectionLost, HostKeyNotVerifiable}; pub use DisconnectCode::{CompressionError, KeyExchangeFailed, MacError, Reserved}; pub use DisconnectCode::{HostNotAllowedToConnect, ProtocolError}; pub use DisconnectCode::{IllegalUserName, NoMoreAuthMethodsAvailable}; pub use DisconnectCode::{ProtocolVersionNotSupported, ServiceNotAvailable}; mod agent; mod channel; mod error; mod knownhosts; mod listener; mod session; mod sftp; mod util; /// Initialize the libssh2 library. /// /// This is optional, it is lazily invoked. pub fn init() { raw::init(); } unsafe fn opt_bytes<'a, T>(_: &'a T, c: *const libc::c_char) -> Option<&'a [u8]> { if c.is_null() { None } else { Some(CStr::from_ptr(c).to_bytes()) } } #[allow(missing_docs)] #[derive(Copy, Clone)] pub enum DisconnectCode { HostNotAllowedToConnect = raw::SSH_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT as isize, ProtocolError = raw::SSH_DISCONNECT_PROTOCOL_ERROR as isize, KeyExchangeFailed = raw::SSH_DISCONNECT_KEY_EXCHANGE_FAILED as isize, Reserved = raw::SSH_DISCONNECT_RESERVED as isize, MacError = raw::SSH_DISCONNECT_MAC_ERROR as isize, CompressionError = raw::SSH_DISCONNECT_COMPRESSION_ERROR as isize, ServiceNotAvailable = raw::SSH_DISCONNECT_SERVICE_NOT_AVAILABLE as isize, ProtocolVersionNotSupported = raw::SSH_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED as isize, HostKeyNotVerifiable = raw::SSH_DISCONNECT_HOST_KEY_NOT_VERIFIABLE as isize, ConnectionLost = raw::SSH_DISCONNECT_CONNECTION_LOST as isize, ByApplication = raw::SSH_DISCONNECT_BY_APPLICATION as isize, TooManyConnections = raw::SSH_DISCONNECT_TOO_MANY_CONNECTIONS as isize, AuthCancelledByUser = raw::SSH_DISCONNECT_AUTH_CANCELLED_BY_USER as isize, NoMoreAuthMethodsAvailable = raw::SSH_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE as isize, IllegalUserName = raw::SSH_DISCONNECT_ILLEGAL_USER_NAME as isize, } #[allow(missing_docs)] #[derive(Copy, Clone, Debug)] pub enum HostKeyType { Unknown = raw::LIBSSH2_HOSTKEY_TYPE_UNKNOWN as isize, Rsa = raw::LIBSSH2_HOSTKEY_TYPE_RSA as isize, Dss = raw::LIBSSH2_HOSTKEY_TYPE_DSS as isize, Ecdsa256 = raw::LIBSSH2_HOSTKEY_TYPE_ECDSA_256 as isize, Ecdsa384 = raw::LIBSSH2_HOSTKEY_TYPE_ECDSA_384 as isize, Ecdsa521 = raw::LIBSSH2_HOSTKEY_TYPE_ECDSA_521 as isize, Ed255219 = raw::LIBSSH2_HOSTKEY_TYPE_ED25519 as isize, } #[allow(missing_docs)] #[derive(Copy, Clone)] pub enum MethodType { Kex = raw::LIBSSH2_METHOD_KEX as isize, HostKey = raw::LIBSSH2_METHOD_HOSTKEY as isize, CryptCs = raw::LIBSSH2_METHOD_CRYPT_CS as isize, CryptSc = raw::LIBSSH2_METHOD_CRYPT_SC as isize, MacCs = raw::LIBSSH2_METHOD_MAC_CS as isize, MacSc = raw::LIBSSH2_METHOD_MAC_SC as isize, CompCs = raw::LIBSSH2_METHOD_COMP_CS as isize, CompSc = raw::LIBSSH2_METHOD_COMP_SC as isize, LangCs = raw::LIBSSH2_METHOD_LANG_CS as isize, LangSc = raw::LIBSSH2_METHOD_LANG_SC as isize, } /// When passed to `Channel::flush_stream`, flushes all extended data /// substreams. pub static FLUSH_EXTENDED_DATA: i32 = -1; /// When passed to `Channel::flush_stream`, flushes all substream. pub static FLUSH_ALL: i32 = -2; /// Stream ID of the stderr channel for stream-related methods on `Channel` pub static EXTENDED_DATA_STDERR: i32 = 1; #[allow(missing_docs)] #[derive(Copy, Clone, Debug)] pub enum HashType { Md5 = raw::LIBSSH2_HOSTKEY_HASH_MD5 as isize, Sha1 = raw::LIBSSH2_HOSTKEY_HASH_SHA1 as isize, Sha256 = raw::LIBSSH2_HOSTKEY_HASH_SHA256 as isize, } #[allow(missing_docs)] #[derive(Copy, Clone, Debug)] pub enum KnownHostFileKind { OpenSSH = raw::LIBSSH2_KNOWNHOST_FILE_OPENSSH as isize, } /// Possible results of a call to `KnownHosts::check` #[derive(Copy, Clone, Debug)] pub enum CheckResult { /// Hosts and keys match Match = raw::LIBSSH2_KNOWNHOST_CHECK_MATCH as isize, /// Host was found, but the keys didn't match! Mismatch = raw::LIBSSH2_KNOWNHOST_CHECK_MISMATCH as isize, /// No host match was found NotFound = raw::LIBSSH2_KNOWNHOST_CHECK_NOTFOUND as isize, /// Something prevented the check to be made Failure = raw::LIBSSH2_KNOWNHOST_CHECK_FAILURE as isize, } #[allow(missing_docs)] #[derive(Copy, Clone, Debug)] pub enum KnownHostKeyFormat { Unknown = raw::LIBSSH2_KNOWNHOST_KEY_UNKNOWN as isize, Rsa1 = raw::LIBSSH2_KNOWNHOST_KEY_RSA1 as isize, SshRsa = raw::LIBSSH2_KNOWNHOST_KEY_SSHRSA as isize, SshDss = raw::LIBSSH2_KNOWNHOST_KEY_SSHDSS as isize, Ecdsa256 = raw::LIBSSH2_KNOWNHOST_KEY_ECDSA_256 as isize, Ecdsa384 = raw::LIBSSH2_KNOWNHOST_KEY_ECDSA_384 as isize, Ecdsa521 = raw::LIBSSH2_KNOWNHOST_KEY_ECDSA_521 as isize, Ed255219 = raw::LIBSSH2_KNOWNHOST_KEY_ED25519 as isize, } impl From<HostKeyType> for KnownHostKeyFormat { fn from(host_type: HostKeyType) -> KnownHostKeyFormat { match host_type { HostKeyType::Unknown => KnownHostKeyFormat::Unknown, HostKeyType::Rsa => KnownHostKeyFormat::SshRsa, HostKeyType::Dss => KnownHostKeyFormat::SshDss, HostKeyType::Ecdsa256 => KnownHostKeyFormat::Ecdsa256, HostKeyType::Ecdsa384 => KnownHostKeyFormat::Ecdsa384, HostKeyType::Ecdsa521 => KnownHostKeyFormat::Ecdsa521, HostKeyType::Ed255219 => KnownHostKeyFormat::Ed255219, } } } /// How to handle extended data streams, such as stderr #[derive(Copy, Clone, Debug)] pub enum ExtendedData { /// Queue extended data for eventual reading Normal = raw::LIBSSH2_CHANNEL_EXTENDED_DATA_NORMAL as isize, /// Treat extended data and ordinary data the same. Merge all substreams such that calls to /// read will pull from all substreams on a first-in/first-out basis. Merge = raw::LIBSSH2_CHANNEL_EXTENDED_DATA_MERGE as isize, /// Discard all extended data as it arrives. Ignore = raw::LIBSSH2_CHANNEL_EXTENDED_DATA_IGNORE as isize, }