client

package
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 Go to latest Published: Oct 17, 2017 License: Apache-2.0 Imports: 52 Imported by: 0

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Index

Constants

View Source 
const (
	// HTTPS is https prefix
	HTTPS = "https"
	// WSS is secure web sockets prefix
	WSS = "wss"
)
View Source 
const CurrentProfileSymlink = "profile"

CurrentProfileSymlink is a filename which is a symlink to the current profile, usually something like this:

~/.tsh/profile -> ~/.tsh/staging.yaml

View Source 
const (
	// Directory location where tsh profiles (and session keys) are stored
	ProfileDir = ".tsh"
)
View Source 
const (
	ProfileMakeCurrent = 1 << iota
)

Variables

This section is empty.

Functions

func FullProfilePath added in v1.2.6 

func FullProfilePath(pDir string) string

FullProfilePath returns the full path to the user profile directory. If the parameter is empty, it returns expanded "~/.tsh", otherwise returns its unmodified parameter

func GetTokenFromHOTPMockFile 

func GetTokenFromHOTPMockFile(path string) (token string, e error)

GetTokenFromHOTPMockFile opens HOTPMock from file, gets token value, increases hotp and saves it to the file. Returns hotp token value.

func LogoutFromEverywhere 

func LogoutFromEverywhere(username string) error

LogoutFromEverywhere looks at the list of proxy servers tsh is currently logged into by examining ~/.tsh and logs him out of them all

func MakeIdentityFile 

func MakeIdentityFile(username, filePath string, key *Key, format IdentityFileFormat) (err error)

MakeIdentityFile takes a username + his credentials and saves them to disk in a specified format

func NewInsecureWebClient 

func NewInsecureWebClient() *http.Client

func ParseLabelSpec added in v1.0.0 

func ParseLabelSpec(spec string) (map[string]string, error)

ParseLabelSpec parses a string like 'name=value,"long name"="quoted value"` into a map like { "name" -> "value", "long name" -> "quoted value" }

func UnlinkCurrentProfile added in v1.3.0 

func UnlinkCurrentProfile() error

If there's a current profile symlink, remove it

func Username added in v1.0.0 

func Username() (string, error)

Username returns the current user's username

Types

type AuthenticationSettings 

type AuthenticationSettings struct {
	// Type is the type of authentication, can be either local or oidc.
	Type string `json:"type"`
	// SecondFactor is the type of second factor to use in authentication.
	// Supported options are: off, otp, and u2f.
	SecondFactor string `json:"second_factor,omitempty"`
	// U2F contains the Universal Second Factor settings needed for authentication.
	U2F *U2FSettings `json:"u2f,omitempty"`
	// OIDC contains the OIDC Connector settings needed for authentication.
	OIDC *OIDCSettings `json:"oidc,omitempty"`
	// SAML contains the SAML Connector settings needed for authentication.
	SAML *SAMLSettings `json:"saml,omitempty"`
}

PingResponse contains the form of authentication the auth server supports.

type Benchmark 

type Benchmark struct {
	// Threads is amount of concurrent execution threads to run
	Threads int
	// Rate is requests per second origination rate
	Rate int
	// Duration is test duration
	Duration time.Duration
	// Command is a command to run
	Command []string
	// Interactive turns on interactive sessions
	Interactive bool
}

Benchmark specifies benchmark requests to run

type BenchmarkResult 

type BenchmarkResult struct {
	// RequestsOriginated is amount of reuqests originated
	RequestsOriginated int
	// RequestsFailed is amount of requests failed
	RequestsFailed int
	// Histogram is a duration histogram
	Histogram *hdrhistogram.Histogram
	// LastError contains last recorded error
	LastError error
}

BenchmarkResult is a result of the benchmark

type CachePolicy 

type CachePolicy struct {
	// CacheTTL defines cache TTL
	CacheTTL time.Duration
	// NeverExpire never expires local cache information
	NeverExpires bool
}

CachePolicy defines cache policy for local clients

type CertAuthMethod 

type CertAuthMethod struct {
	ssh.AuthMethod
	Cert ssh.Signer
}

CertAuthMethod is a wrapper around ssh.Signer (certificate signer) object. CertAuthMethod then implements ssh.Authmethod interface around this one certificate signer.

We need this wrapper because Golang's SSH library's unfortunate API design. It uses callbacks with 'authMethod' interfaces and without this wrapper it is impossible to tell which certificate an 'authMethod' passed via a callback had succeeded authenticating with.

func NewAuthMethodForCert 

func NewAuthMethodForCert(cert ssh.Signer) *CertAuthMethod

type ClientProfile added in v1.2.6 

type ClientProfile struct {
	//
	// proxy configuration
	//
	ProxyHost    string `yaml:"proxy_host,omitempty"`
	ProxySSHPort int    `yaml:"proxy_port,omitempty"`
	ProxyWebPort int    `yaml:"proxy_web_port,omitempty"`

	//
	// auth/identity
	//
	Username string `yaml:"user,omitempty"`

	// AuthType (like "google")
	AuthType string `yaml:"auth_type,omitempty"`

	// SiteName is equivalient to --cluster argument
	SiteName string `yaml:"cluster,omitempty"`

	//
	// other stuff
	//
	ForwardedPorts []string `yaml:"forward_ports,omitempty"`
}

ClientProfile is a collection of most frequently used CLI flags for "tsh".

Profiles can be stored in a profile file, allowing TSH users to type fewer CLI args.

func ProfileFromDir added in v1.2.6 

func ProfileFromDir(dirPath string, proxyName string) (*ClientProfile, error)

ProfileFromDir reads the user (yaml) profile from a given directory. The default is to use the ~/<dir-path>/profile symlink unless another profile is explicitly asked for. It works by looking for a "profile" symlink in that directory pointing to the profile's YAML file first.

func ProfileFromFile added in v1.2.6 

func ProfileFromFile(filePath string) (*ClientProfile, error)

ProfileFromFile loads the profile from a YAML file

func (*ClientProfile) SaveTo added in v1.2.6 

func (cp *ClientProfile) SaveTo(filePath string, opts ProfileOptions) error

SaveTo saves the profile into a given filename, optionally overwriting it.

type Config added in v1.0.0 

type Config struct {
	// Username is the Teleport account username (for logging into Teleport proxies)
	Username string

	// Remote host to connect
	Host string

	// Labels represent host Labels
	Labels map[string]string

	// Namespace is nodes namespace
	Namespace string

	// HostLogin is a user login on a remote host
	HostLogin string

	// HostPort is a remote host port to connect to. This is used for **explicit**
	// port setting via -p flag, otherwise '0' is passed which means "use server default"
	HostPort int

	// ProxyHostPort is a host or IP of the proxy (with optional ":ssh_port,https_port").
	// The value is taken from the --proxy flag and can look like --proxy=host:5025,5080
	ProxyHostPort string

	// KeyTTL is a time to live for the temporary SSH keypair to remain valid:
	KeyTTL time.Duration

	// InsecureSkipVerify is an option to skip HTTPS cert check
	InsecureSkipVerify bool

	// SkipLocalAuth tells the client to use AuthMethods parameter for authentication and NOT
	// use its own SSH agent or ask user for passwords. This is used by external programs linking
	// against Teleport client and obtaining credentials from elsewhere.
	SkipLocalAuth bool

	// AuthMethods are used to login into the cluster. If specified, the client will
	// use them in addition to certs stored in its local agent (from disk)
	AuthMethods []ssh.AuthMethod

	// DefaultPrincipal determines the default SSH username (principal) the client should be using
	// when connecting to auth/proxy servers. Usually it's returned with a certificate,
	// but this variables provides a default (used by the web-based terminal client)
	DefaultPrincipal string

	Stdout io.Writer
	Stderr io.Writer
	Stdin  io.Reader

	// ExitStatus carries the returned value (exit status) of the remote
	// process execution (via SSh exec)
	ExitStatus int

	// SiteName specifies site to execute operation,
	// if omitted, first available site will be selected
	SiteName string

	// Locally forwarded ports (parameters to -L ssh flag)
	LocalForwardPorts ForwardedPorts

	// HostKeyCallback will be called to check host keys of the remote
	// node, if not specified will be using CheckHostSignature function
	// that uses local cache to validate hosts
	HostKeyCallback HostKeyCallback

	// KeyDir defines where temporary session keys will be stored.
	// if empty, they'll go to ~/.tsh
	KeysDir string

	// Env is a map of environmnent variables to send when opening session
	Env map[string]string

	// Interactive, when set to true, tells tsh to launch a remote command
	// in interactive mode, i.e. attaching the temrinal to it
	Interactive bool

	// ClientAddr (if set) specifies the true client IP. Usually it's not needed (since the server
	// can look at the connecting address to determine client's IP) but for cases when the
	// client is web-based, this must be set to HTTP's remote addr
	ClientAddr string

	// CachePolicy defines local caching policy in case if discovery goes down
	// by default does not use caching
	CachePolicy *CachePolicy

	// Compatibility specifies OpenSSH compatibility flags.
	Compatibility string

	// AuthConnector is the name of the authentication connector to use.
	AuthConnector string
}

Config is a client config

func MakeDefaultConfig added in v1.2.6 

func MakeDefaultConfig() *Config

func (*Config) LoadProfile added in v1.2.6 

func (c *Config) LoadProfile(profileDir string, proxyName string) error

LoadProfile populates Config with the values stored in the given profiles directory. If profileDir is an empty string, the default profile directory ~/.tsh is used.

func (*Config) ProxyHost added in v1.0.0 

func (c *Config) ProxyHost() string

ProxyHost returns the hostname of the proxy server (without any port numbers)

func (*Config) ProxySSHHostPort added in v1.2.6 

func (c *Config) ProxySSHHostPort() string

func (*Config) ProxySSHPort added in v1.2.6 

func (c *Config) ProxySSHPort() (retval int)

ProxySSHPort returns the port number of teleport SSH proxy stored in the config usually 3023 by default.

func (*Config) ProxySpecified added in v1.0.0 

func (c *Config) ProxySpecified() bool

ProxySpecified returns true if proxy has been specified

func (*Config) ProxyWebHostPort added in v1.2.6 

func (c *Config) ProxyWebHostPort() string

func (*Config) ProxyWebPort added in v1.2.6 

func (c *Config) ProxyWebPort() (retval int)

ProxyWebPort returns the port number of teleport HTTP proxy stored in the config usually 3080 by default.

func (*Config) SaveProfile added in v1.2.6 

func (c *Config) SaveProfile(profileDir string) error

SaveProfile updates the given profiles directory with the current configuration If profileDir is an empty string, the default ~/.tsh is used

func (*Config) SetProxy added in v1.2.6 

func (c *Config) SetProxy(host string, webPort, sshPort int)

type CreateSSHCertReq 

type CreateSSHCertReq struct {
	// User is a teleport username
	User string `json:"user"`
	// Password is user's pass
	Password string `json:"password"`
	// HOTPToken is second factor token
	// Deprecated: HOTPToken is deprecated, use OTPToken.
	HOTPToken string `json:"hotp_token"`
	// OTPToken is second factor token
	OTPToken string `json:"otp_token"`
	// PubKey is a public key user wishes to sign
	PubKey []byte `json:"pub_key"`
	// TTL is a desired TTL for the cert (max is still capped by server,
	// however user can shorten the time)
	TTL time.Duration `json:"ttl"`
	// Compatibility specifies OpenSSH compatibility flags.
	Compatibility string `json:"compatibility,omitempty"`
}

CreateSSHCertReq are passed by web client to authenticate against teleport server and receive a temporary cert signed by auth server authority

type CreateSSHCertWithU2FReq 

type CreateSSHCertWithU2FReq struct {
	// User is a teleport username
	User string `json:"user"`
	// We only issue U2F sign requests after checking the password, so there's no need to check again.
	// U2FSignResponse is the signature from the U2F device
	U2FSignResponse u2f.SignResponse `json:"u2f_sign_response"`
	// PubKey is a public key user wishes to sign
	PubKey []byte `json:"pub_key"`
	// TTL is a desired TTL for the cert (max is still capped by server,
	// however user can shorten the time)
	TTL time.Duration `json:"ttl"`
	// Compatibility specifies OpenSSH compatibility flags.
	Compatibility string `json:"compatibility,omitempty"`
}

CreateSSHCertWithU2FReq are passed by web client to authenticate against teleport server and receive a temporary cert signed by auth server authority

type FSLocalKeyStore added in v1.0.0 

type FSLocalKeyStore struct {
	LocalKeyStore

	// KeyDir is the directory where all keys are stored
	KeyDir string
}

FSLocalKeyStore implements LocalKeyStore interface using the filesystem Here's the file layout for the FS store: ~/.tsh/ ├── known_hosts --> trusted certificate authorities (their keys) in a format similar to known_hosts └── sessions --> server-signed session keys 

└── host-a
|   ├── cert
|   ├── key
|   └── pub
└── host-b
    ├── cert
    ├── key
    └── pub

func NewFSLocalKeyStore added in v1.0.0 

func NewFSLocalKeyStore(dirPath string) (s *FSLocalKeyStore, err error)

NewFSLocalKeyStore creates a new filesystem-based local keystore object and initializes it.

if dirPath is empty, sets it to ~/.tsh

func (*FSLocalKeyStore) AddKey added in v1.0.0 

func (fs *FSLocalKeyStore) AddKey(host, username string, key *Key) error

AddKey adds a new key to the session store. If a key for the host is already stored, overwrites it.

func (*FSLocalKeyStore) AddKnownHostKeys added in v1.0.0 

func (fs *FSLocalKeyStore) AddKnownHostKeys(hostname string, hostKeys []ssh.PublicKey) error

AddKnownHostKeys adds a new entry to 'known_hosts' file

func (*FSLocalKeyStore) DeleteKey added in v1.0.0 

func (fs *FSLocalKeyStore) DeleteKey(host string, username string) error

DeleteKey deletes a key from the local store

func (*FSLocalKeyStore) GetKey added in v1.0.0 

func (fs *FSLocalKeyStore) GetKey(host, username string) (*Key, error)

GetKey returns a key for a given host. If the key is not found, returns trace.NotFound error.

func (*FSLocalKeyStore) GetKeys added in v1.0.0 

func (fs *FSLocalKeyStore) GetKeys(username string) (keys []Key, err error)

GetKeys returns all user session keys stored in the store

func (*FSLocalKeyStore) GetKnownHostKeys added in v1.0.0 

func (fs *FSLocalKeyStore) GetKnownHostKeys(hostname string) ([]ssh.PublicKey, error)

GetKnownHostKeys returns all known public keys from 'known_hosts'

type ForwardedPort added in v1.0.0 

type ForwardedPort struct {
	SrcIP    string
	SrcPort  int
	DestPort int
	DestHost string
}

ForwardedPort specifies local tunnel to remote destination managed by the client, is equivalent of ssh -L src:host:dst command

func (*ForwardedPort) ToString added in v1.2.6 

func (p *ForwardedPort) ToString() string

ToString() returns a string representation of a forwarded port spec, compatible with OpenSSH's -L flag, i.e. "src_host:src_port:dest_host:dest_port"

type ForwardedPorts added in v1.2.6 

type ForwardedPorts []ForwardedPort

func ParsePortForwardSpec added in v1.1.0 

func ParsePortForwardSpec(spec []string) (ports ForwardedPorts, err error)

ParsePortForwardSpec parses parameter to -L flag, i.e. strings like "[ip]:80:remote.host:3000" The opposite of this function (spec generation) is ForwardedPorts.ToString()

func (ForwardedPorts) ToStringSpec added in v1.2.6 

func (fp ForwardedPorts) ToStringSpec() (retval []string)

ToString() returns the same string spec which can be parsed by ParsePortForwardSpec

type HOTPMock 

type HOTPMock struct {
	*hotp.HOTP
}

HOTPMock is a HOTP that can be saved or load from file Using HOTPMock disables the hotp security level, don't use it in production

func CreateHOTPMock 

func CreateHOTPMock(hotpURLString string) (*HOTPMock, error)

func LoadHOTPMockFromFile 

func LoadHOTPMockFromFile(path string) (*HOTPMock, error)

func (*HOTPMock) SaveToFile 

func (otp *HOTPMock) SaveToFile(path string) error

type HostKeyCallback added in v1.0.0 

type HostKeyCallback func(host string, ip net.Addr, key ssh.PublicKey) error

HostKeyCallback is called by SSH client when it needs to check remote host key or certificate validity

type IdentityFileFormat 

type IdentityFileFormat string

IdentityFileFormat describes possible file formats how a user identity can be sotred 

const (
	// IdentityFormatFile is when a key + cert are stored concatenated into a single file
	IdentityFormatFile IdentityFileFormat = "file"

	// IdentityFormatOpenSSH is OpenSSH-compatible format, when a key and a cert are stored in
	// two different files (in the same directory)
	IdentityFormatOpenSSH IdentityFileFormat = "openssh"

	// DefaultIdentityFormat is what Teleport uses by default
	DefaultIdentityFormat = IdentityFormatFile
)

type Key 

type Key struct {
	Priv []byte `json:"Priv,omitempty"`
	Pub  []byte `json:"Pub,omitempty"`
	Cert []byte `json:"Cert,omitempty"`

	// ProxyHost (optionally) contains the hostname of the proxy server
	// which issued this key
	ProxyHost string
}

Key describes a complete (signed) client key

func NewKey 

func NewKey() (key *Key, err error)

NewKey generates a new unsigned key. Such key must be signed by a Teleport CA (auth server) before it becomes useful.

func (*Key) AsAgentKeys 

func (k *Key) AsAgentKeys() ([]*agent.AddedKey, error)

AsAgentKeys converts client.Key struct to a []*agent.AddedKey. All elements of the []*agent.AddedKey slice need to be loaded into the agent!

This is done because OpenSSH clients older than OpenSSH 7.3/7.3p1 (2016-08-01) have a bug in how they use certificates that have been loaded in an agent. Specifically when you add a certificate to an agent, you can't just embed the private key within the certificate, you have to add the certificate and private key to the agent separately. Teleport works around this behavior to ensure OpenSSH interoperability.

For more details see the following: https://bugzilla.mindrot.org/show_bug.cgi?id=2550 WARNING: callers expect the returned slice to be __exactly as it is__

func (*Key) AsAuthMethod 

func (k *Key) AsAuthMethod() (ssh.AuthMethod, error)

AsAuthMethod returns an "auth method" interface, a common abstraction used by Golang SSH library. This is how you actually use a Key to feed it into the SSH lib.

func (*Key) CertValidBefore added in v1.0.0 

func (k *Key) CertValidBefore() (t time.Time, err error)

CertValidBefore returns the time of the cert expiration

func (*Key) EqualsTo 

func (k *Key) EqualsTo(other *Key) bool

EqualsTo returns true if this key is the same as the other. Primarily used in tests

type LocalKeyAgent added in v1.0.0 

type LocalKeyAgent struct {
	agent.Agent // Agent is the teleport agent
	// contains filtered or unexported fields
}

func NewLocalAgent added in v1.0.0 

func NewLocalAgent(keyDir, username string) (a *LocalKeyAgent, err error)

NewLocalAgent reads all Teleport certificates from disk (using FSLocalKeyStore), creates a LocalKeyAgent, loads all certificates into it, and returns the agent.

func (*LocalKeyAgent) AddHostSignersToCache added in v1.0.0 

func (a *LocalKeyAgent) AddHostSignersToCache(hostSigners []services.CertAuthorityV1) error

AddHostSignersToCache takes a list of CAs whom we trust. This list is added to a database of "seen" CAs.

Every time we connect to a new host, we'll request its certificaate to be signed by one of these trusted CAs.

Why do we trust these CAs? Because we received them from a trusted Teleport Proxy. Why do we trust the proxy? Because we've connected to it via HTTPS + username + Password + HOTP.

func (*LocalKeyAgent) AddKey added in v1.0.0 

func (a *LocalKeyAgent) AddKey(host string, username string, key *Key) (*agent.AddedKey, error)

AddKey activates a new signed session key by adding it into the keystore and also by loading it into the SSH agent

func (*LocalKeyAgent) AuthMethods 

func (a *LocalKeyAgent) AuthMethods() (m []ssh.AuthMethod)

AuthMethods returns the list of differnt authentication methods this agent supports It returns two:

  1. First to try is the external SSH agent
  2. Itself (disk-based local agent)

func (*LocalKeyAgent) CheckHostSignature added in v1.0.0 

func (a *LocalKeyAgent) CheckHostSignature(host string, remote net.Addr, key ssh.PublicKey) error

CheckHostSignature checks if the given host key was signed by one of the trusted certificaate authorities (CAs)

func (*LocalKeyAgent) DeleteKey added in v1.0.0 

func (a *LocalKeyAgent) DeleteKey(proxyHost string, username string) error

DeleteKey removes the key from the key store as well as unloading the key from the agent.

func (*LocalKeyAgent) GetKeys added in v1.0.0 

func (a *LocalKeyAgent) GetKeys(username string) ([]Key, error)

GetKeys returns a slice of keys that it has read in from the local keystore (~/.tsh)

func (*LocalKeyAgent) LoadKey 

func (a *LocalKeyAgent) LoadKey(username string, key Key) (*agent.AddedKey, error)

LoadKey adds a key into the teleport ssh agent as well as the system ssh agent.

func (*LocalKeyAgent) UnloadKey 

func (a *LocalKeyAgent) UnloadKey(username string) error

UnloadKey will unload a key from the teleport ssh agent as well as the system agent.

func (*LocalKeyAgent) UnloadKeys 

func (a *LocalKeyAgent) UnloadKeys() error

UnloadKeys will unload all Teleport keys from the teleport agent as well as the system agent.

func (*LocalKeyAgent) UserRefusedHosts 

func (a *LocalKeyAgent) UserRefusedHosts() bool

UserRefusedHosts returns 'true' if a user refuses connecting to remote hosts when prompted during host authorization

type LocalKeyStore added in v1.0.0 

type LocalKeyStore interface {
	// client key management
	GetKeys(username string) ([]Key, error)
	AddKey(host string, username string, key *Key) error
	GetKey(host string, username string) (*Key, error)
	DeleteKey(host string, username string) error

	// interface to known_hosts file:
	AddKnownHostKeys(hostname string, keys []ssh.PublicKey) error
	GetKnownHostKeys(hostname string) ([]ssh.PublicKey, error)
}

LocalKeyStore interface allows for different storage back-ends for TSH to load/save its keys

The _only_ filesystem-based implementation of LocalKeyStore is declared below (FSLocalKeyStore)

type NodeClient 

type NodeClient struct {
	Namespace string
	Client    *ssh.Client
	Proxy     *ProxyClient
}

NodeClient implements ssh client to a ssh node (teleport or any regular ssh node) NodeClient can run shell and commands or upload and download files.

func (*NodeClient) Close 

func (client *NodeClient) Close() error

func (*NodeClient) Download 

func (client *NodeClient) Download(remoteSourcePath, localDestinationPath string, recursive bool, stderr, progressWriter io.Writer) error

Download downloads file or dir from the remote server

func (*NodeClient) Upload 

func (client *NodeClient) Upload(srcPath, rDestPath string, recursive bool, stderr, progressWriter io.Writer) error

Upload uploads local file(s) or to the remote server's destination path

type NodeSession added in v1.1.0 

type NodeSession struct {
	ExitMsg string
	// contains filtered or unexported fields
}

func (*NodeSession) Close 

func (ns *NodeSession) Close() error

func (*NodeSession) NodeClient 

func (ns *NodeSession) NodeClient() *NodeClient

type OIDCSettings 

type OIDCSettings struct {
	// Name is the internal name of the connector.
	Name string `json:"name"`
	// Display is the display name for the connector.
	Display string `json:"display"`
}

OIDCSettings contains the Name and Display string for OIDC.

type PingResponse 

type PingResponse struct {
	// Auth contains the forms of authentication the auth server supports.
	Auth AuthenticationSettings `json:"auth"`
	// ServerVersion is the version of Teleport that is running.
	ServerVersion string `json:"server_version"`
}

PingResponse contains data about the Teleport server like supported authentication types, server version, etc.

func Ping 

func Ping(proxyAddr string, insecure bool, pool *x509.CertPool, connectorName string) (*PingResponse, error)

Ping serves two purposes. The first is to validate the HTTP endpoint of a Teleport proxy. This leads to better user experience: users get connection errors before being asked for passwords. The second is to return the form of authentication that the server supports. This also leads to better user experience: users only get prompted for the type of authentication the server supports.

type ProfileOptions added in v1.2.6 

type ProfileOptions int

type ProxyClient 

type ProxyClient struct {
	Client *ssh.Client
	// contains filtered or unexported fields
}

ProxyClient implements ssh client to a teleport proxy It can provide list of nodes or connect to nodes

func (*ProxyClient) Close 

func (proxy *ProxyClient) Close() error

func (*ProxyClient) ClusterAccessPoint 

func (proxy *ProxyClient) ClusterAccessPoint(ctx context.Context, quiet bool) (auth.AccessPoint, error)

ClusterAccessPoint returns cluster access point used for discovery and could be cached based on the access policy

func (*ProxyClient) ConnectToNode 

func (proxy *ProxyClient) ConnectToNode(ctx context.Context, nodeAddress string, user string, quiet bool) (*NodeClient, error)

ConnectToNode connects to the ssh server via Proxy. It returns connected and authenticated NodeClient

func (*ProxyClient) ConnectToSite added in v1.0.0 

func (proxy *ProxyClient) ConnectToSite(ctx context.Context, quiet bool) (auth.ClientI, error)

ConnectToSite connects to the auth server of the given site via proxy. It returns connected and authenticated auth server client

if 'quiet' is set to true, no errors will be printed to stdout, otherwise any connection errors are visible to a user.

func (*ProxyClient) FindServersByLabels added in v1.0.0 

func (proxy *ProxyClient) FindServersByLabels(ctx context.Context, namespace string, labels map[string]string) ([]services.Server, error)

FindServersByLabels returns list of the nodes which have labels exactly matching the given label set.

A server is matched when ALL labels match. If no labels are passed, ALL nodes are returned.

func (*ProxyClient) GetSites added in v1.0.0 

func (proxy *ProxyClient) GetSites() ([]services.Site, error)

GetSites returns list of the "sites" (AKA teleport clusters) connected to the proxy Each site is returned as an instance of its auth server

type SAMLSettings 

type SAMLSettings struct {
	// Name is the internal name of the connector.
	Name string `json:"name"`
	// Display is the display name for the connector.
	Display string `json:"display"`
}

SAMLSettings contains the Name and Display string for SAML

type SSHLoginResponse 

type SSHLoginResponse struct {
	// User contains a logged in user informationn
	Username string `json:"username"`
	// Cert is a signed certificate
	Cert []byte `json:"cert"`
	// HostSigners is a list of signing host public keys
	// trusted by proxy
	HostSigners []services.CertAuthorityV1 `json:"host_signers"`
}

SSHLoginResponse is a response returned by web proxy

func SSHAgentLogin 

func SSHAgentLogin(proxyAddr, user, password, otpToken string, pubKey []byte, ttl time.Duration, insecure bool, pool *x509.CertPool, compatibility string) (*SSHLoginResponse, error)

SSHAgentLogin issues call to web proxy and receives temp certificate if credentials are valid

proxyAddr must be specified as host:port

func SSHAgentSSOLogin 

func SSHAgentSSOLogin(proxyAddr, connectorID string, pubKey []byte, ttl time.Duration, insecure bool, pool *x509.CertPool, protocol string, compatibility string) (*SSHLoginResponse, error)

SSHAgentSSOLogin is used by SSH Agent (tsh) to login using OpenID connect

func SSHAgentU2FLogin 

func SSHAgentU2FLogin(proxyAddr, user, password string, pubKey []byte, ttl time.Duration, insecure bool, pool *x509.CertPool, compatibility string) (*SSHLoginResponse, error)

SSHAgentU2FLogin requests a U2F sign request (authentication challenge) via the proxy. If the credentials are valid, the proxy wiil return a challenge. We then call the official u2f-host binary to perform the signing and pass the signature to the proxy. If the authentication succeeds, we will get a temporary certificate back

type SSOLoginConsoleReq 

type SSOLoginConsoleReq struct {
	RedirectURL   string        `json:"redirect_url"`
	PublicKey     []byte        `json:"public_key"`
	CertTTL       time.Duration `json:"cert_ttl"`
	ConnectorID   string        `json:"connector_id"`
	Compatibility string        `json:"compatibility,omitempty"`
}

SSOLoginConsoleReq is used to SSO for tsh

type SSOLoginConsoleResponse 

type SSOLoginConsoleResponse struct {
	RedirectURL string `json:"redirect_url"`
}

SSOLoginConsoleResponse is a response to SSO console request

type ShellCreatedCallback added in v1.1.0 

type ShellCreatedCallback func(s *ssh.Session, c *ssh.Client, terminal io.ReadWriteCloser) (exit bool, err error)

ShellCreatedCallback can be supplied for every teleport client. It will be called right after the remote shell is created, but the session hasn't begun yet.

It allows clients to cancel SSH action

type TeleportClient added in v1.0.0 

type TeleportClient struct {
	Config

	// OnShellCreated gets called when the shell is created. It's
	// safe to keep it nil
	OnShellCreated ShellCreatedCallback
	// contains filtered or unexported fields
}

TeleportClient is a wrapper around SSH client with teleport specific workflow built in

func NewClient added in v1.0.0 

func NewClient(c *Config) (tc *TeleportClient, err error)

NewClient creates a TeleportClient object and fully configures it

func (*TeleportClient) AddKey added in v1.0.0 

func (tc *TeleportClient) AddKey(host string, key *Key) (*agent.AddedKey, error)

func (*TeleportClient) AddTrustedCA added in v1.0.0 

func (tc *TeleportClient) AddTrustedCA(ca *services.CertAuthorityV1) error

Adds a new CA as trusted CA for this client

func (*TeleportClient) AskOTP 

func (tc *TeleportClient) AskOTP() (token string, err error)

AskOTP prompts the user to enter the OTP token.

func (*TeleportClient) AskPassword added in v1.3.0 

func (tc *TeleportClient) AskPassword() (pwd string, err error)

AskPassword prompts the user to enter the password

func (*TeleportClient) Benchmark 

func (tc *TeleportClient) Benchmark(ctx context.Context, bench Benchmark) (*BenchmarkResult, error)

Benchmark connects to remote server and executes requests in parallel according to benchmark spec. It returns benchmark result when completed. This is a blocking function that can be cancelled via context argument.

func (*TeleportClient) ConnectToProxy added in v1.0.0 

func (tc *TeleportClient) ConnectToProxy() (*ProxyClient, error)

ConnectToProxy dials the proxy server and returns ProxyClient if successful

func (*TeleportClient) Join added in v1.0.0 

func (tc *TeleportClient) Join(ctx context.Context, namespace string, sessionID session.ID, input io.Reader) (err error)

Join connects to the existing/active SSH session

func (*TeleportClient) ListNodes added in v1.0.0 

func (tc *TeleportClient) ListNodes(ctx context.Context) ([]services.Server, error)

ListNodes returns a list of nodes connected to a proxy

func (*TeleportClient) LocalAgent added in v1.0.0 

func (tc *TeleportClient) LocalAgent() *LocalKeyAgent

func (*TeleportClient) Login added in v1.0.0 

func (tc *TeleportClient) Login(activateKey bool) (*Key, error)

Login logs the user into a Teleport cluster by talking to a Teleport proxy.

If 'activateKey' is true, saves the received session cert into the local keystore (and into the ssh-agent) for future use.

func (*TeleportClient) Logout added in v1.0.0 

func (tc *TeleportClient) Logout() error

Logout locates a certificate stored for a given proxy and deletes it

func (*TeleportClient) Play added in v1.0.0 

func (tc *TeleportClient) Play(ctx context.Context, namespace, sessionId string) (err error)

Play replays the recorded session

func (*TeleportClient) SCP added in v1.0.0 

func (tc *TeleportClient) SCP(ctx context.Context, args []string, port int, recursive bool, quiet bool) (err error)

SCP securely copies file(s) from one SSH server to another

func (*TeleportClient) SSH added in v1.0.0 

func (tc *TeleportClient) SSH(ctx context.Context, command []string, runLocally bool) error

SSH connects to a node and, if 'command' is specified, executes the command on it, otherwise runs interactive shell

Returns nil if successful, or (possibly) *exec.ExitError

type U2FSettings 

type U2FSettings struct {
	// AppID is the U2F AppID.
	AppID string `json:"app_id"`
}

U2FSettings contains the AppID for Universal Second Factor.

type U2fSignRequestReq 

type U2fSignRequestReq struct {
	User string `json:"user"`
	Pass string `json:"pass"`
}

A request from the client for a U2F sign request from the server

type WebClient 

type WebClient struct {
	*roundtrip.Client
}

WebClient is a package local lightweight client used in tests and some functions to handle errors properly

func NewWebClient 

func NewWebClient(url string, opts ...roundtrip.ClientParam) (*WebClient, error)

func (*WebClient) Delete 

func (w *WebClient) Delete(endpoint string) (*roundtrip.Response, error)

func (*WebClient) Get 

func (w *WebClient) Get(endpoint string, val url.Values) (*roundtrip.Response, error)

func (*WebClient) PostJSON 

func (w *WebClient) PostJSON(
	endpoint string, val interface{}) (*roundtrip.Response, error)

func (*WebClient) PutJSON 

func (w *WebClient) PutJSON(
	endpoint string, val interface{}) (*roundtrip.Response, error)

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