From 459bb4531f92f8663afb6f36aa9be5b789bd591f Mon Sep 17 00:00:00 2001 From: Frédéric Guillot Date: Fri, 6 Jul 2018 21:18:14 -0700 Subject: Update vendor dependencies --- vendor/golang.org/x/crypto/ssh/server.go | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) (limited to 'vendor/golang.org/x/crypto/ssh/server.go') diff --git a/vendor/golang.org/x/crypto/ssh/server.go b/vendor/golang.org/x/crypto/ssh/server.go index b83d473..d0f4825 100644 --- a/vendor/golang.org/x/crypto/ssh/server.go +++ b/vendor/golang.org/x/crypto/ssh/server.go @@ -166,6 +166,9 @@ type ServerConn struct { // unsuccessful, it closes the connection and returns an error. The // Request and NewChannel channels must be serviced, or the connection // will hang. +// +// The returned error may be of type *ServerAuthError for +// authentication errors. func NewServerConn(c net.Conn, config *ServerConfig) (*ServerConn, <-chan NewChannel, <-chan *Request, error) { fullConf := *config fullConf.SetDefaults() @@ -292,12 +295,13 @@ func checkSourceAddress(addr net.Addr, sourceAddrs string) error { return fmt.Errorf("ssh: remote address %v is not allowed because of source-address restriction", addr) } -// ServerAuthError implements the error interface. It appends any authentication -// errors that may occur, and is returned if all of the authentication methods -// provided by the user failed to authenticate. +// ServerAuthError represents server authentication errors and is +// sometimes returned by NewServerConn. It appends any authentication +// errors that may occur, and is returned if all of the authentication +// methods provided by the user failed to authenticate. type ServerAuthError struct { // Errors contains authentication errors returned by the authentication - // callback methods. + // callback methods. The first entry is typically ErrNoAuth. Errors []error } @@ -309,6 +313,13 @@ func (l ServerAuthError) Error() string { return "[" + strings.Join(errs, ", ") + "]" } +// ErrNoAuth is the error value returned if no +// authentication method has been passed yet. This happens as a normal +// part of the authentication loop, since the client first tries +// 'none' authentication to discover available methods. +// It is returned in ServerAuthError.Errors from NewServerConn. +var ErrNoAuth = errors.New("ssh: no auth passed yet") + func (s *connection) serverAuthenticate(config *ServerConfig) (*Permissions, error) { sessionID := s.transport.getSessionID() var cache pubKeyCache @@ -363,7 +374,7 @@ userAuthLoop: } perms = nil - authErr := errors.New("no auth passed yet") + authErr := ErrNoAuth switch userAuthReq.Method { case "none": -- cgit v1.2.3