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-rw-r--r--vendor/golang.org/x/crypto/ssh/certs.go16
-rw-r--r--vendor/golang.org/x/crypto/ssh/cipher.go43
-rw-r--r--vendor/golang.org/x/crypto/ssh/client.go6
-rw-r--r--vendor/golang.org/x/crypto/ssh/keys.go98
-rw-r--r--vendor/golang.org/x/crypto/ssh/server.go2
-rw-r--r--vendor/golang.org/x/crypto/ssh/streamlocal.go1
-rw-r--r--vendor/golang.org/x/crypto/ssh/tcpip.go9
-rw-r--r--vendor/golang.org/x/crypto/ssh/terminal/util.go4
-rw-r--r--vendor/golang.org/x/crypto/ssh/terminal/util_solaris.go40
-rw-r--r--vendor/golang.org/x/crypto/ssh/terminal/util_windows.go4
10 files changed, 153 insertions, 70 deletions
diff --git a/vendor/golang.org/x/crypto/ssh/certs.go b/vendor/golang.org/x/crypto/ssh/certs.go
index 42106f3f..00ed9923 100644
--- a/vendor/golang.org/x/crypto/ssh/certs.go
+++ b/vendor/golang.org/x/crypto/ssh/certs.go
@@ -222,6 +222,11 @@ type openSSHCertSigner struct {
signer Signer
}
+type algorithmOpenSSHCertSigner struct {
+ *openSSHCertSigner
+ algorithmSigner AlgorithmSigner
+}
+
// NewCertSigner returns a Signer that signs with the given Certificate, whose
// private key is held by signer. It returns an error if the public key in cert
// doesn't match the key used by signer.
@@ -230,7 +235,12 @@ func NewCertSigner(cert *Certificate, signer Signer) (Signer, error) {
return nil, errors.New("ssh: signer and cert have different public key")
}
- return &openSSHCertSigner{cert, signer}, nil
+ if algorithmSigner, ok := signer.(AlgorithmSigner); ok {
+ return &algorithmOpenSSHCertSigner{
+ &openSSHCertSigner{cert, signer}, algorithmSigner}, nil
+ } else {
+ return &openSSHCertSigner{cert, signer}, nil
+ }
}
func (s *openSSHCertSigner) Sign(rand io.Reader, data []byte) (*Signature, error) {
@@ -241,6 +251,10 @@ func (s *openSSHCertSigner) PublicKey() PublicKey {
return s.pub
}
+func (s *algorithmOpenSSHCertSigner) SignWithAlgorithm(rand io.Reader, data []byte, algorithm string) (*Signature, error) {
+ return s.algorithmSigner.SignWithAlgorithm(rand, data, algorithm)
+}
+
const sourceAddressCriticalOption = "source-address"
// CertChecker does the work of verifying a certificate. Its methods
diff --git a/vendor/golang.org/x/crypto/ssh/cipher.go b/vendor/golang.org/x/crypto/ssh/cipher.go
index 30a49fdf..67b01261 100644
--- a/vendor/golang.org/x/crypto/ssh/cipher.go
+++ b/vendor/golang.org/x/crypto/ssh/cipher.go
@@ -16,6 +16,7 @@ import (
"hash"
"io"
"io/ioutil"
+ "math/bits"
"golang.org/x/crypto/internal/chacha20"
"golang.org/x/crypto/poly1305"
@@ -641,8 +642,8 @@ const chacha20Poly1305ID = "chacha20-poly1305@openssh.com"
// the methods here also implement padding, which RFC4253 Section 6
// also requires of stream ciphers.
type chacha20Poly1305Cipher struct {
- lengthKey [32]byte
- contentKey [32]byte
+ lengthKey [8]uint32
+ contentKey [8]uint32
buf []byte
}
@@ -655,20 +656,21 @@ func newChaCha20Cipher(key, unusedIV, unusedMACKey []byte, unusedAlgs directionA
buf: make([]byte, 256),
}
- copy(c.contentKey[:], key[:32])
- copy(c.lengthKey[:], key[32:])
+ for i := range c.contentKey {
+ c.contentKey[i] = binary.LittleEndian.Uint32(key[i*4 : (i+1)*4])
+ }
+ for i := range c.lengthKey {
+ c.lengthKey[i] = binary.LittleEndian.Uint32(key[(i+8)*4 : (i+9)*4])
+ }
return c, nil
}
-// The Poly1305 key is obtained by encrypting 32 0-bytes.
-var chacha20PolyKeyInput [32]byte
-
func (c *chacha20Poly1305Cipher) readPacket(seqNum uint32, r io.Reader) ([]byte, error) {
- var counter [16]byte
- binary.BigEndian.PutUint64(counter[8:], uint64(seqNum))
-
+ nonce := [3]uint32{0, 0, bits.ReverseBytes32(seqNum)}
+ s := chacha20.New(c.contentKey, nonce)
var polyKey [32]byte
- chacha20.XORKeyStream(polyKey[:], chacha20PolyKeyInput[:], &counter, &c.contentKey)
+ s.XORKeyStream(polyKey[:], polyKey[:])
+ s.Advance() // skip next 32 bytes
encryptedLength := c.buf[:4]
if _, err := io.ReadFull(r, encryptedLength); err != nil {
@@ -676,7 +678,7 @@ func (c *chacha20Poly1305Cipher) readPacket(seqNum uint32, r io.Reader) ([]byte,
}
var lenBytes [4]byte
- chacha20.XORKeyStream(lenBytes[:], encryptedLength, &counter, &c.lengthKey)
+ chacha20.New(c.lengthKey, nonce).XORKeyStream(lenBytes[:], encryptedLength)
length := binary.BigEndian.Uint32(lenBytes[:])
if length > maxPacket {
@@ -702,10 +704,8 @@ func (c *chacha20Poly1305Cipher) readPacket(seqNum uint32, r io.Reader) ([]byte,
return nil, errors.New("ssh: MAC failure")
}
- counter[0] = 1
-
plain := c.buf[4:contentEnd]
- chacha20.XORKeyStream(plain, plain, &counter, &c.contentKey)
+ s.XORKeyStream(plain, plain)
padding := plain[0]
if padding < 4 {
@@ -724,11 +724,11 @@ func (c *chacha20Poly1305Cipher) readPacket(seqNum uint32, r io.Reader) ([]byte,
}
func (c *chacha20Poly1305Cipher) writePacket(seqNum uint32, w io.Writer, rand io.Reader, payload []byte) error {
- var counter [16]byte
- binary.BigEndian.PutUint64(counter[8:], uint64(seqNum))
-
+ nonce := [3]uint32{0, 0, bits.ReverseBytes32(seqNum)}
+ s := chacha20.New(c.contentKey, nonce)
var polyKey [32]byte
- chacha20.XORKeyStream(polyKey[:], chacha20PolyKeyInput[:], &counter, &c.contentKey)
+ s.XORKeyStream(polyKey[:], polyKey[:])
+ s.Advance() // skip next 32 bytes
// There is no blocksize, so fall back to multiple of 8 byte
// padding, as described in RFC 4253, Sec 6.
@@ -748,7 +748,7 @@ func (c *chacha20Poly1305Cipher) writePacket(seqNum uint32, w io.Writer, rand io
}
binary.BigEndian.PutUint32(c.buf, uint32(1+len(payload)+padding))
- chacha20.XORKeyStream(c.buf, c.buf[:4], &counter, &c.lengthKey)
+ chacha20.New(c.lengthKey, nonce).XORKeyStream(c.buf, c.buf[:4])
c.buf[4] = byte(padding)
copy(c.buf[5:], payload)
packetEnd := 5 + len(payload) + padding
@@ -756,8 +756,7 @@ func (c *chacha20Poly1305Cipher) writePacket(seqNum uint32, w io.Writer, rand io
return err
}
- counter[0] = 1
- chacha20.XORKeyStream(c.buf[4:], c.buf[4:packetEnd], &counter, &c.contentKey)
+ s.XORKeyStream(c.buf[4:], c.buf[4:packetEnd])
var mac [poly1305.TagSize]byte
poly1305.Sum(&mac, c.buf[:packetEnd], &polyKey)
diff --git a/vendor/golang.org/x/crypto/ssh/client.go b/vendor/golang.org/x/crypto/ssh/client.go
index 6fd19945..7b00bff1 100644
--- a/vendor/golang.org/x/crypto/ssh/client.go
+++ b/vendor/golang.org/x/crypto/ssh/client.go
@@ -19,6 +19,8 @@ import (
type Client struct {
Conn
+ handleForwardsOnce sync.Once // guards calling (*Client).handleForwards
+
forwards forwardList // forwarded tcpip connections from the remote side
mu sync.Mutex
channelHandlers map[string]chan NewChannel
@@ -60,8 +62,6 @@ func NewClient(c Conn, chans <-chan NewChannel, reqs <-chan *Request) *Client {
conn.Wait()
conn.forwards.closeAll()
}()
- go conn.forwards.handleChannels(conn.HandleChannelOpen("forwarded-tcpip"))
- go conn.forwards.handleChannels(conn.HandleChannelOpen("forwarded-streamlocal@openssh.com"))
return conn
}
@@ -185,7 +185,7 @@ func Dial(network, addr string, config *ClientConfig) (*Client, error) {
// keys. A HostKeyCallback must return nil if the host key is OK, or
// an error to reject it. It receives the hostname as passed to Dial
// or NewClientConn. The remote address is the RemoteAddr of the
-// net.Conn underlying the the SSH connection.
+// net.Conn underlying the SSH connection.
type HostKeyCallback func(hostname string, remote net.Addr, key PublicKey) error
// BannerCallback is the function type used for treat the banner sent by
diff --git a/vendor/golang.org/x/crypto/ssh/keys.go b/vendor/golang.org/x/crypto/ssh/keys.go
index 73697ded..96980479 100644
--- a/vendor/golang.org/x/crypto/ssh/keys.go
+++ b/vendor/golang.org/x/crypto/ssh/keys.go
@@ -38,6 +38,16 @@ const (
KeyAlgoED25519 = "ssh-ed25519"
)
+// These constants represent non-default signature algorithms that are supported
+// as algorithm parameters to AlgorithmSigner.SignWithAlgorithm methods. See
+// [PROTOCOL.agent] section 4.5.1 and
+// https://tools.ietf.org/html/draft-ietf-curdle-rsa-sha2-10
+const (
+ SigAlgoRSA = "ssh-rsa"
+ SigAlgoRSASHA2256 = "rsa-sha2-256"
+ SigAlgoRSASHA2512 = "rsa-sha2-512"
+)
+
// parsePubKey parses a public key of the given algorithm.
// Use ParsePublicKey for keys with prepended algorithm.
func parsePubKey(in []byte, algo string) (pubKey PublicKey, rest []byte, err error) {
@@ -301,6 +311,19 @@ type Signer interface {
Sign(rand io.Reader, data []byte) (*Signature, error)
}
+// A AlgorithmSigner is a Signer that also supports specifying a specific
+// algorithm to use for signing.
+type AlgorithmSigner interface {
+ Signer
+
+ // SignWithAlgorithm is like Signer.Sign, but allows specification of a
+ // non-default signing algorithm. See the SigAlgo* constants in this
+ // package for signature algorithms supported by this package. Callers may
+ // pass an empty string for the algorithm in which case the AlgorithmSigner
+ // will use its default algorithm.
+ SignWithAlgorithm(rand io.Reader, data []byte, algorithm string) (*Signature, error)
+}
+
type rsaPublicKey rsa.PublicKey
func (r *rsaPublicKey) Type() string {
@@ -349,13 +372,21 @@ func (r *rsaPublicKey) Marshal() []byte {
}
func (r *rsaPublicKey) Verify(data []byte, sig *Signature) error {
- if sig.Format != r.Type() {
+ var hash crypto.Hash
+ switch sig.Format {
+ case SigAlgoRSA:
+ hash = crypto.SHA1
+ case SigAlgoRSASHA2256:
+ hash = crypto.SHA256
+ case SigAlgoRSASHA2512:
+ hash = crypto.SHA512
+ default:
return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, r.Type())
}
- h := crypto.SHA1.New()
+ h := hash.New()
h.Write(data)
digest := h.Sum(nil)
- return rsa.VerifyPKCS1v15((*rsa.PublicKey)(r), crypto.SHA1, digest, sig.Blob)
+ return rsa.VerifyPKCS1v15((*rsa.PublicKey)(r), hash, digest, sig.Blob)
}
func (r *rsaPublicKey) CryptoPublicKey() crypto.PublicKey {
@@ -459,6 +490,14 @@ func (k *dsaPrivateKey) PublicKey() PublicKey {
}
func (k *dsaPrivateKey) Sign(rand io.Reader, data []byte) (*Signature, error) {
+ return k.SignWithAlgorithm(rand, data, "")
+}
+
+func (k *dsaPrivateKey) SignWithAlgorithm(rand io.Reader, data []byte, algorithm string) (*Signature, error) {
+ if algorithm != "" && algorithm != k.PublicKey().Type() {
+ return nil, fmt.Errorf("ssh: unsupported signature algorithm %s", algorithm)
+ }
+
h := crypto.SHA1.New()
h.Write(data)
digest := h.Sum(nil)
@@ -691,16 +730,42 @@ func (s *wrappedSigner) PublicKey() PublicKey {
}
func (s *wrappedSigner) Sign(rand io.Reader, data []byte) (*Signature, error) {
+ return s.SignWithAlgorithm(rand, data, "")
+}
+
+func (s *wrappedSigner) SignWithAlgorithm(rand io.Reader, data []byte, algorithm string) (*Signature, error) {
var hashFunc crypto.Hash
- switch key := s.pubKey.(type) {
- case *rsaPublicKey, *dsaPublicKey:
- hashFunc = crypto.SHA1
- case *ecdsaPublicKey:
- hashFunc = ecHash(key.Curve)
- case ed25519PublicKey:
- default:
- return nil, fmt.Errorf("ssh: unsupported key type %T", key)
+ if _, ok := s.pubKey.(*rsaPublicKey); ok {
+ // RSA keys support a few hash functions determined by the requested signature algorithm
+ switch algorithm {
+ case "", SigAlgoRSA:
+ algorithm = SigAlgoRSA
+ hashFunc = crypto.SHA1
+ case SigAlgoRSASHA2256:
+ hashFunc = crypto.SHA256
+ case SigAlgoRSASHA2512:
+ hashFunc = crypto.SHA512
+ default:
+ return nil, fmt.Errorf("ssh: unsupported signature algorithm %s", algorithm)
+ }
+ } else {
+ // The only supported algorithm for all other key types is the same as the type of the key
+ if algorithm == "" {
+ algorithm = s.pubKey.Type()
+ } else if algorithm != s.pubKey.Type() {
+ return nil, fmt.Errorf("ssh: unsupported signature algorithm %s", algorithm)
+ }
+
+ switch key := s.pubKey.(type) {
+ case *dsaPublicKey:
+ hashFunc = crypto.SHA1
+ case *ecdsaPublicKey:
+ hashFunc = ecHash(key.Curve)
+ case ed25519PublicKey:
+ default:
+ return nil, fmt.Errorf("ssh: unsupported key type %T", key)
+ }
}
var digest []byte
@@ -745,7 +810,7 @@ func (s *wrappedSigner) Sign(rand io.Reader, data []byte) (*Signature, error) {
}
return &Signature{
- Format: s.pubKey.Type(),
+ Format: algorithm,
Blob: signature,
}, nil
}
@@ -803,7 +868,7 @@ func encryptedBlock(block *pem.Block) bool {
}
// ParseRawPrivateKey returns a private key from a PEM encoded private key. It
-// supports RSA (PKCS#1), DSA (OpenSSL), and ECDSA private keys.
+// supports RSA (PKCS#1), PKCS#8, DSA (OpenSSL), and ECDSA private keys.
func ParseRawPrivateKey(pemBytes []byte) (interface{}, error) {
block, _ := pem.Decode(pemBytes)
if block == nil {
@@ -817,6 +882,9 @@ func ParseRawPrivateKey(pemBytes []byte) (interface{}, error) {
switch block.Type {
case "RSA PRIVATE KEY":
return x509.ParsePKCS1PrivateKey(block.Bytes)
+ // RFC5208 - https://tools.ietf.org/html/rfc5208
+ case "PRIVATE KEY":
+ return x509.ParsePKCS8PrivateKey(block.Bytes)
case "EC PRIVATE KEY":
return x509.ParseECPrivateKey(block.Bytes)
case "DSA PRIVATE KEY":
@@ -900,8 +968,8 @@ func ParseDSAPrivateKey(der []byte) (*dsa.PrivateKey, error) {
// Implemented based on the documentation at
// https://github.com/openssh/openssh-portable/blob/master/PROTOCOL.key
func parseOpenSSHPrivateKey(key []byte) (crypto.PrivateKey, error) {
- magic := append([]byte("openssh-key-v1"), 0)
- if !bytes.Equal(magic, key[0:len(magic)]) {
+ const magic = "openssh-key-v1\x00"
+ if len(key) < len(magic) || string(key[:len(magic)]) != magic {
return nil, errors.New("ssh: invalid openssh private key format")
}
remaining := key[len(magic):]
diff --git a/vendor/golang.org/x/crypto/ssh/server.go b/vendor/golang.org/x/crypto/ssh/server.go
index d0f48253..122c03e7 100644
--- a/vendor/golang.org/x/crypto/ssh/server.go
+++ b/vendor/golang.org/x/crypto/ssh/server.go
@@ -404,7 +404,7 @@ userAuthLoop:
perms, authErr = config.PasswordCallback(s, password)
case "keyboard-interactive":
if config.KeyboardInteractiveCallback == nil {
- authErr = errors.New("ssh: keyboard-interactive auth not configubred")
+ authErr = errors.New("ssh: keyboard-interactive auth not configured")
break
}
diff --git a/vendor/golang.org/x/crypto/ssh/streamlocal.go b/vendor/golang.org/x/crypto/ssh/streamlocal.go
index a2dccc64..b171b330 100644
--- a/vendor/golang.org/x/crypto/ssh/streamlocal.go
+++ b/vendor/golang.org/x/crypto/ssh/streamlocal.go
@@ -32,6 +32,7 @@ type streamLocalChannelForwardMsg struct {
// ListenUnix is similar to ListenTCP but uses a Unix domain socket.
func (c *Client) ListenUnix(socketPath string) (net.Listener, error) {
+ c.handleForwardsOnce.Do(c.handleForwards)
m := streamLocalChannelForwardMsg{
socketPath,
}
diff --git a/vendor/golang.org/x/crypto/ssh/tcpip.go b/vendor/golang.org/x/crypto/ssh/tcpip.go
index acf17175..80d35f5e 100644
--- a/vendor/golang.org/x/crypto/ssh/tcpip.go
+++ b/vendor/golang.org/x/crypto/ssh/tcpip.go
@@ -90,10 +90,19 @@ type channelForwardMsg struct {
rport uint32
}
+// handleForwards starts goroutines handling forwarded connections.
+// It's called on first use by (*Client).ListenTCP to not launch
+// goroutines until needed.
+func (c *Client) handleForwards() {
+ go c.forwards.handleChannels(c.HandleChannelOpen("forwarded-tcpip"))
+ go c.forwards.handleChannels(c.HandleChannelOpen("forwarded-streamlocal@openssh.com"))
+}
+
// ListenTCP requests the remote peer open a listening socket
// on laddr. Incoming connections will be available by calling
// Accept on the returned net.Listener.
func (c *Client) ListenTCP(laddr *net.TCPAddr) (net.Listener, error) {
+ c.handleForwardsOnce.Do(c.handleForwards)
if laddr.Port == 0 && isBrokenOpenSSHVersion(string(c.ServerVersion())) {
return c.autoPortListenWorkaround(laddr)
}
diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util.go b/vendor/golang.org/x/crypto/ssh/terminal/util.go
index 02dad484..731c89a2 100644
--- a/vendor/golang.org/x/crypto/ssh/terminal/util.go
+++ b/vendor/golang.org/x/crypto/ssh/terminal/util.go
@@ -108,9 +108,7 @@ func ReadPassword(fd int) ([]byte, error) {
return nil, err
}
- defer func() {
- unix.IoctlSetTermios(fd, ioctlWriteTermios, termios)
- }()
+ defer unix.IoctlSetTermios(fd, ioctlWriteTermios, termios)
return readPasswordLine(passwordReader(fd))
}
diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util_solaris.go b/vendor/golang.org/x/crypto/ssh/terminal/util_solaris.go
index a2e1b57d..9e41b9f4 100644
--- a/vendor/golang.org/x/crypto/ssh/terminal/util_solaris.go
+++ b/vendor/golang.org/x/crypto/ssh/terminal/util_solaris.go
@@ -14,7 +14,7 @@ import (
// State contains the state of a terminal.
type State struct {
- state *unix.Termios
+ termios unix.Termios
}
// IsTerminal returns true if the given file descriptor is a terminal.
@@ -75,47 +75,43 @@ func ReadPassword(fd int) ([]byte, error) {
// restored.
// see http://cr.illumos.org/~webrev/andy_js/1060/
func MakeRaw(fd int) (*State, error) {
- oldTermiosPtr, err := unix.IoctlGetTermios(fd, unix.TCGETS)
+ termios, err := unix.IoctlGetTermios(fd, unix.TCGETS)
if err != nil {
return nil, err
}
- oldTermios := *oldTermiosPtr
-
- newTermios := oldTermios
- newTermios.Iflag &^= syscall.IGNBRK | syscall.BRKINT | syscall.PARMRK | syscall.ISTRIP | syscall.INLCR | syscall.IGNCR | syscall.ICRNL | syscall.IXON
- newTermios.Oflag &^= syscall.OPOST
- newTermios.Lflag &^= syscall.ECHO | syscall.ECHONL | syscall.ICANON | syscall.ISIG | syscall.IEXTEN
- newTermios.Cflag &^= syscall.CSIZE | syscall.PARENB
- newTermios.Cflag |= syscall.CS8
- newTermios.Cc[unix.VMIN] = 1
- newTermios.Cc[unix.VTIME] = 0
-
- if err := unix.IoctlSetTermios(fd, unix.TCSETS, &newTermios); err != nil {
+
+ oldState := State{termios: *termios}
+
+ termios.Iflag &^= unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON
+ termios.Oflag &^= unix.OPOST
+ termios.Lflag &^= unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN
+ termios.Cflag &^= unix.CSIZE | unix.PARENB
+ termios.Cflag |= unix.CS8
+ termios.Cc[unix.VMIN] = 1
+ termios.Cc[unix.VTIME] = 0
+
+ if err := unix.IoctlSetTermios(fd, unix.TCSETS, termios); err != nil {
return nil, err
}
- return &State{
- state: oldTermiosPtr,
- }, nil
+ return &oldState, nil
}
// Restore restores the terminal connected to the given file descriptor to a
// previous state.
func Restore(fd int, oldState *State) error {
- return unix.IoctlSetTermios(fd, unix.TCSETS, oldState.state)
+ return unix.IoctlSetTermios(fd, unix.TCSETS, &oldState.termios)
}
// GetState returns the current state of a terminal which may be useful to
// restore the terminal after a signal.
func GetState(fd int) (*State, error) {
- oldTermiosPtr, err := unix.IoctlGetTermios(fd, unix.TCGETS)
+ termios, err := unix.IoctlGetTermios(fd, unix.TCGETS)
if err != nil {
return nil, err
}
- return &State{
- state: oldTermiosPtr,
- }, nil
+ return &State{termios: *termios}, nil
}
// GetSize returns the dimensions of the given terminal.
diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util_windows.go b/vendor/golang.org/x/crypto/ssh/terminal/util_windows.go
index 4933ac36..8618955d 100644
--- a/vendor/golang.org/x/crypto/ssh/terminal/util_windows.go
+++ b/vendor/golang.org/x/crypto/ssh/terminal/util_windows.go
@@ -89,9 +89,7 @@ func ReadPassword(fd int) ([]byte, error) {
return nil, err
}
- defer func() {
- windows.SetConsoleMode(windows.Handle(fd), old)
- }()
+ defer windows.SetConsoleMode(windows.Handle(fd), old)
var h windows.Handle
p, _ := windows.GetCurrentProcess()
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 16:24:22 +0000