[chore]: Bump golang.org/x/crypto from 0.21.0 to 0.22.0 (#2835)

2 files changed, 172 insertions, 108 deletions

diff --git a/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.s b/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.s
index 66aebae25..c672ccf69 100644
--- a/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.s
+++ b/vendor/golang.org/x/crypto/chacha20/chacha_ppc64le.s
@@ -33,6 +33,9 @@
 #define CONSTBASE  R16
 #define BLOCKS R17
 
+// for VPERMXOR
+#define MASK  R18
+
 DATA consts<>+0x00(SB)/8, $0x3320646e61707865
 DATA consts<>+0x08(SB)/8, $0x6b20657479622d32
 DATA consts<>+0x10(SB)/8, $0x0000000000000001
@@ -53,7 +56,11 @@ DATA consts<>+0x80(SB)/8, $0x6b2065746b206574
 DATA consts<>+0x88(SB)/8, $0x6b2065746b206574
 DATA consts<>+0x90(SB)/8, $0x0000000100000000
 DATA consts<>+0x98(SB)/8, $0x0000000300000002
-GLOBL consts<>(SB), RODATA, $0xa0
+DATA consts<>+0xa0(SB)/8, $0x5566774411223300
+DATA consts<>+0xa8(SB)/8, $0xddeeffcc99aabb88
+DATA consts<>+0xb0(SB)/8, $0x6677445522330011
+DATA consts<>+0xb8(SB)/8, $0xeeffccddaabb8899
+GLOBL consts<>(SB), RODATA, $0xc0
 
 //func chaCha20_ctr32_vsx(out, inp *byte, len int, key *[8]uint32, counter *uint32)
 TEXT ·chaCha20_ctr32_vsx(SB),NOSPLIT,$64-40
@@ -70,6 +77,9 @@ TEXT ·chaCha20_ctr32_vsx(SB),NOSPLIT,$64-40
 	MOVD $48, R10
 	MOVD $64, R11
 	SRD $6, LEN, BLOCKS
+	// for VPERMXOR
+	MOVD $consts<>+0xa0(SB), MASK
+	MOVD $16, R20
 	// V16
 	LXVW4X (CONSTBASE)(R0), VS48
 	ADD $80,CONSTBASE
@@ -87,6 +97,10 @@ TEXT ·chaCha20_ctr32_vsx(SB),NOSPLIT,$64-40
 	// V28
 	LXVW4X (CONSTBASE)(R11), VS60
 
+	// Load mask constants for VPERMXOR
+	LXVW4X (MASK)(R0), V20
+	LXVW4X (MASK)(R20), V21
+
 	// splat slot from V19 -> V26
 	VSPLTW $0, V19, V26
 
@@ -97,7 +111,7 @@ TEXT ·chaCha20_ctr32_vsx(SB),NOSPLIT,$64-40
 
 	MOVD $10, R14
 	MOVD R14, CTR
-
+	PCALIGN $16
 loop_outer_vsx:
 	// V0, V1, V2, V3
 	LXVW4X (R0)(CONSTBASE), VS32
@@ -128,22 +142,17 @@ loop_outer_vsx:
 	VSPLTISW $12, V28
 	VSPLTISW $8, V29
 	VSPLTISW $7, V30
-
+	PCALIGN $16
 loop_vsx:
 	VADDUWM V0, V4, V0
 	VADDUWM V1, V5, V1
 	VADDUWM V2, V6, V2
 	VADDUWM V3, V7, V3
 
-	VXOR V12, V0, V12
-	VXOR V13, V1, V13
-	VXOR V14, V2, V14
-	VXOR V15, V3, V15
-
-	VRLW V12, V27, V12
-	VRLW V13, V27, V13
-	VRLW V14, V27, V14
-	VRLW V15, V27, V15
+	VPERMXOR V12, V0, V21, V12
+	VPERMXOR V13, V1, V21, V13
+	VPERMXOR V14, V2, V21, V14
+	VPERMXOR V15, V3, V21, V15
 
 	VADDUWM V8, V12, V8
 	VADDUWM V9, V13, V9
@@ -165,15 +174,10 @@ loop_vsx:
 	VADDUWM V2, V6, V2
 	VADDUWM V3, V7, V3
 
-	VXOR V12, V0, V12
-	VXOR V13, V1, V13
-	VXOR V14, V2, V14
-	VXOR V15, V3, V15
-
-	VRLW V12, V29, V12
-	VRLW V13, V29, V13
-	VRLW V14, V29, V14
-	VRLW V15, V29, V15
+	VPERMXOR V12, V0, V20, V12
+	VPERMXOR V13, V1, V20, V13
+	VPERMXOR V14, V2, V20, V14
+	VPERMXOR V15, V3, V20, V15
 
 	VADDUWM V8, V12, V8
 	VADDUWM V9, V13, V9
@@ -195,15 +199,10 @@ loop_vsx:
 	VADDUWM V2, V7, V2
 	VADDUWM V3, V4, V3
 
-	VXOR V15, V0, V15
-	VXOR V12, V1, V12
-	VXOR V13, V2, V13
-	VXOR V14, V3, V14
-
-	VRLW V15, V27, V15
-	VRLW V12, V27, V12
-	VRLW V13, V27, V13
-	VRLW V14, V27, V14
+	VPERMXOR V15, V0, V21, V15
+	VPERMXOR V12, V1, V21, V12
+	VPERMXOR V13, V2, V21, V13
+	VPERMXOR V14, V3, V21, V14
 
 	VADDUWM V10, V15, V10
 	VADDUWM V11, V12, V11
@@ -225,15 +224,10 @@ loop_vsx:
 	VADDUWM V2, V7, V2
 	VADDUWM V3, V4, V3
 
-	VXOR V15, V0, V15
-	VXOR V12, V1, V12
-	VXOR V13, V2, V13
-	VXOR V14, V3, V14
-
-	VRLW V15, V29, V15
-	VRLW V12, V29, V12
-	VRLW V13, V29, V13
-	VRLW V14, V29, V14
+	VPERMXOR V15, V0, V20, V15
+	VPERMXOR V12, V1, V20, V12
+	VPERMXOR V13, V2, V20, V13
+	VPERMXOR V14, V3, V20, V14
 
 	VADDUWM V10, V15, V10
 	VADDUWM V11, V12, V11
@@ -249,48 +243,48 @@ loop_vsx:
 	VRLW V6, V30, V6
 	VRLW V7, V30, V7
 	VRLW V4, V30, V4
-	BC   16, LT, loop_vsx
+	BDNZ   loop_vsx
 
 	VADDUWM V12, V26, V12
 
-	WORD $0x13600F8C		// VMRGEW V0, V1, V27
-	WORD $0x13821F8C		// VMRGEW V2, V3, V28
+	VMRGEW V0, V1, V27
+	VMRGEW V2, V3, V28
 
-	WORD $0x10000E8C		// VMRGOW V0, V1, V0
-	WORD $0x10421E8C		// VMRGOW V2, V3, V2
+	VMRGOW V0, V1, V0
+	VMRGOW V2, V3, V2
 
-	WORD $0x13A42F8C		// VMRGEW V4, V5, V29
-	WORD $0x13C63F8C		// VMRGEW V6, V7, V30
+	VMRGEW V4, V5, V29
+	VMRGEW V6, V7, V30
 
 	XXPERMDI VS32, VS34, $0, VS33
 	XXPERMDI VS32, VS34, $3, VS35
 	XXPERMDI VS59, VS60, $0, VS32
 	XXPERMDI VS59, VS60, $3, VS34
 
-	WORD $0x10842E8C		// VMRGOW V4, V5, V4
-	WORD $0x10C63E8C		// VMRGOW V6, V7, V6
+	VMRGOW V4, V5, V4
+	VMRGOW V6, V7, V6
 
-	WORD $0x13684F8C		// VMRGEW V8, V9, V27
-	WORD $0x138A5F8C		// VMRGEW V10, V11, V28
+	VMRGEW V8, V9, V27
+	VMRGEW V10, V11, V28
 
 	XXPERMDI VS36, VS38, $0, VS37
 	XXPERMDI VS36, VS38, $3, VS39
 	XXPERMDI VS61, VS62, $0, VS36
 	XXPERMDI VS61, VS62, $3, VS38
 
-	WORD $0x11084E8C		// VMRGOW V8, V9, V8
-	WORD $0x114A5E8C		// VMRGOW V10, V11, V10
+	VMRGOW V8, V9, V8
+	VMRGOW V10, V11, V10
 
-	WORD $0x13AC6F8C		// VMRGEW V12, V13, V29
-	WORD $0x13CE7F8C		// VMRGEW V14, V15, V30
+	VMRGEW V12, V13, V29
+	VMRGEW V14, V15, V30
 
 	XXPERMDI VS40, VS42, $0, VS41
 	XXPERMDI VS40, VS42, $3, VS43
 	XXPERMDI VS59, VS60, $0, VS40
 	XXPERMDI VS59, VS60, $3, VS42
 
-	WORD $0x118C6E8C		// VMRGOW V12, V13, V12
-	WORD $0x11CE7E8C		// VMRGOW V14, V15, V14
+	VMRGOW V12, V13, V12
+	VMRGOW V14, V15, V14
 
 	VSPLTISW $4, V27
 	VADDUWM V26, V27, V26
@@ -431,7 +425,7 @@ tail_vsx:
 	ADD $-1, R11, R12
 	ADD $-1, INP
 	ADD $-1, OUT
-
+	PCALIGN $16
 looptail_vsx:
 	// Copying the result to OUT
 	// in bytes.
@@ -439,7 +433,7 @@ looptail_vsx:
 	MOVBZU 1(INP), TMP
 	XOR    KEY, TMP, KEY
 	MOVBU  KEY, 1(OUT)
-	BC     16, LT, looptail_vsx
+	BDNZ   looptail_vsx
 
 	// Clear the stack values
 	STXVW4X VS48, (R11)(R0)
diff --git a/vendor/golang.org/x/crypto/ssh/server.go b/vendor/golang.org/x/crypto/ssh/server.go
index c2dfe3268..e2ae4f891 100644
--- a/vendor/golang.org/x/crypto/ssh/server.go
+++ b/vendor/golang.org/x/crypto/ssh/server.go
@@ -426,6 +426,35 @@ func (l ServerAuthError) Error() string {
 	return "[" + strings.Join(errs, ", ") + "]"
 }
 
+// ServerAuthCallbacks defines server-side authentication callbacks.
+type ServerAuthCallbacks struct {
+	// PasswordCallback behaves like [ServerConfig.PasswordCallback].
+	PasswordCallback func(conn ConnMetadata, password []byte) (*Permissions, error)
+
+	// PublicKeyCallback behaves like [ServerConfig.PublicKeyCallback].
+	PublicKeyCallback func(conn ConnMetadata, key PublicKey) (*Permissions, error)
+
+	// KeyboardInteractiveCallback behaves like [ServerConfig.KeyboardInteractiveCallback].
+	KeyboardInteractiveCallback func(conn ConnMetadata, client KeyboardInteractiveChallenge) (*Permissions, error)
+
+	// GSSAPIWithMICConfig behaves like [ServerConfig.GSSAPIWithMICConfig].
+	GSSAPIWithMICConfig *GSSAPIWithMICConfig
+}
+
+// PartialSuccessError can be returned by any of the [ServerConfig]
+// authentication callbacks to indicate to the client that authentication has
+// partially succeeded, but further steps are required.
+type PartialSuccessError struct {
+	// Next defines the authentication callbacks to apply to further steps. The
+	// available methods communicated to the client are based on the non-nil
+	// ServerAuthCallbacks fields.
+	Next ServerAuthCallbacks
+}
+
+func (p *PartialSuccessError) Error() string {
+	return "ssh: authenticated with partial success"
+}
+
 // 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
@@ -439,8 +468,18 @@ func (s *connection) serverAuthenticate(config *ServerConfig) (*Permissions, err
 	var perms *Permissions
 
 	authFailures := 0
+	noneAuthCount := 0
 	var authErrs []error
 	var displayedBanner bool
+	partialSuccessReturned := false
+	// Set the initial authentication callbacks from the config. They can be
+	// changed if a PartialSuccessError is returned.
+	authConfig := ServerAuthCallbacks{
+		PasswordCallback:            config.PasswordCallback,
+		PublicKeyCallback:           config.PublicKeyCallback,
+		KeyboardInteractiveCallback: config.KeyboardInteractiveCallback,
+		GSSAPIWithMICConfig:         config.GSSAPIWithMICConfig,
+	}
 
 userAuthLoop:
 	for {
@@ -471,6 +510,11 @@ userAuthLoop:
 			return nil, errors.New("ssh: client attempted to negotiate for unknown service: " + userAuthReq.Service)
 		}
 
+		if s.user != userAuthReq.User && partialSuccessReturned {
+			return nil, fmt.Errorf("ssh: client changed the user after a partial success authentication, previous user %q, current user %q",
+				s.user, userAuthReq.User)
+		}
+
 		s.user = userAuthReq.User
 
 		if !displayedBanner && config.BannerCallback != nil {
@@ -491,20 +535,18 @@ userAuthLoop:
 
 		switch userAuthReq.Method {
 		case "none":
-			if config.NoClientAuth {
+			noneAuthCount++
+			// We don't allow none authentication after a partial success
+			// response.
+			if config.NoClientAuth && !partialSuccessReturned {
 				if config.NoClientAuthCallback != nil {
 					perms, authErr = config.NoClientAuthCallback(s)
 				} else {
 					authErr = nil
 				}
 			}
-
-			// allow initial attempt of 'none' without penalty
-			if authFailures == 0 {
-				authFailures--
-			}
 		case "password":
-			if config.PasswordCallback == nil {
+			if authConfig.PasswordCallback == nil {
 				authErr = errors.New("ssh: password auth not configured")
 				break
 			}
@@ -518,17 +560,17 @@ userAuthLoop:
 				return nil, parseError(msgUserAuthRequest)
 			}
 
-			perms, authErr = config.PasswordCallback(s, password)
+			perms, authErr = authConfig.PasswordCallback(s, password)
 		case "keyboard-interactive":
-			if config.KeyboardInteractiveCallback == nil {
+			if authConfig.KeyboardInteractiveCallback == nil {
 				authErr = errors.New("ssh: keyboard-interactive auth not configured")
 				break
 			}
 
 			prompter := &sshClientKeyboardInteractive{s}
-			perms, authErr = config.KeyboardInteractiveCallback(s, prompter.Challenge)
+			perms, authErr = authConfig.KeyboardInteractiveCallback(s, prompter.Challenge)
 		case "publickey":
-			if config.PublicKeyCallback == nil {
+			if authConfig.PublicKeyCallback == nil {
 				authErr = errors.New("ssh: publickey auth not configured")
 				break
 			}
@@ -562,11 +604,18 @@ userAuthLoop:
 			if !ok {
 				candidate.user = s.user
 				candidate.pubKeyData = pubKeyData
-				candidate.perms, candidate.result = config.PublicKeyCallback(s, pubKey)
-				if candidate.result == nil && candidate.perms != nil && candidate.perms.CriticalOptions != nil && candidate.perms.CriticalOptions[sourceAddressCriticalOption] != "" {
-					candidate.result = checkSourceAddress(
+				candidate.perms, candidate.result = authConfig.PublicKeyCallback(s, pubKey)
+				_, isPartialSuccessError := candidate.result.(*PartialSuccessError)
+
+				if (candidate.result == nil || isPartialSuccessError) &&
+					candidate.perms != nil &&
+					candidate.perms.CriticalOptions != nil &&
+					candidate.perms.CriticalOptions[sourceAddressCriticalOption] != "" {
+					if err := checkSourceAddress(
 						s.RemoteAddr(),
-						candidate.perms.CriticalOptions[sourceAddressCriticalOption])
+						candidate.perms.CriticalOptions[sourceAddressCriticalOption]); err != nil {
+						candidate.result = err
+					}
 				}
 				cache.add(candidate)
 			}
@@ -578,8 +627,8 @@ userAuthLoop:
 				if len(payload) > 0 {
 					return nil, parseError(msgUserAuthRequest)
 				}
-
-				if candidate.result == nil {
+				_, isPartialSuccessError := candidate.result.(*PartialSuccessError)
+				if candidate.result == nil || isPartialSuccessError {
 					okMsg := userAuthPubKeyOkMsg{
 						Algo:   algo,
 						PubKey: pubKeyData,
@@ -629,11 +678,11 @@ userAuthLoop:
 				perms = candidate.perms
 			}
 		case "gssapi-with-mic":
-			if config.GSSAPIWithMICConfig == nil {
+			if authConfig.GSSAPIWithMICConfig == nil {
 				authErr = errors.New("ssh: gssapi-with-mic auth not configured")
 				break
 			}
-			gssapiConfig := config.GSSAPIWithMICConfig
+			gssapiConfig := authConfig.GSSAPIWithMICConfig
 			userAuthRequestGSSAPI, err := parseGSSAPIPayload(userAuthReq.Payload)
 			if err != nil {
 				return nil, parseError(msgUserAuthRequest)
@@ -689,49 +738,70 @@ userAuthLoop:
 			break userAuthLoop
 		}
 
-		authFailures++
-		if config.MaxAuthTries > 0 && authFailures >= config.MaxAuthTries {
-			// If we have hit the max attempts, don't bother sending the
-			// final SSH_MSG_USERAUTH_FAILURE message, since there are
-			// no more authentication methods which can be attempted,
-			// and this message may cause the client to re-attempt
-			// authentication while we send the disconnect message.
-			// Continue, and trigger the disconnect at the start of
-			// the loop.
-			//
-			// The SSH specification is somewhat confusing about this,
-			// RFC 4252 Section 5.1 requires each authentication failure
-			// be responded to with a respective SSH_MSG_USERAUTH_FAILURE
-			// message, but Section 4 says the server should disconnect
-			// after some number of attempts, but it isn't explicit which
-			// message should take precedence (i.e. should there be a failure
-			// message than a disconnect message, or if we are going to
-			// disconnect, should we only send that message.)
-			//
-			// Either way, OpenSSH disconnects immediately after the last
-			// failed authnetication attempt, and given they are typically
-			// considered the golden implementation it seems reasonable
-			// to match that behavior.
-			continue
+		var failureMsg userAuthFailureMsg
+
+		if partialSuccess, ok := authErr.(*PartialSuccessError); ok {
+			// After a partial success error we don't allow changing the user
+			// name and execute the NoClientAuthCallback.
+			partialSuccessReturned = true
+
+			// In case a partial success is returned, the server may send
+			// a new set of authentication methods.
+			authConfig = partialSuccess.Next
+
+			// Reset pubkey cache, as the new PublicKeyCallback might
+			// accept a different set of public keys.
+			cache = pubKeyCache{}
+
+			// Send back a partial success message to the user.
+			failureMsg.PartialSuccess = true
+		} else {
+			// Allow initial attempt of 'none' without penalty.
+			if authFailures > 0 || userAuthReq.Method != "none" || noneAuthCount != 1 {
+				authFailures++
+			}
+			if config.MaxAuthTries > 0 && authFailures >= config.MaxAuthTries {
+				// If we have hit the max attempts, don't bother sending the
+				// final SSH_MSG_USERAUTH_FAILURE message, since there are
+				// no more authentication methods which can be attempted,
+				// and this message may cause the client to re-attempt
+				// authentication while we send the disconnect message.
+				// Continue, and trigger the disconnect at the start of
+				// the loop.
+				//
+				// The SSH specification is somewhat confusing about this,
+				// RFC 4252 Section 5.1 requires each authentication failure
+				// be responded to with a respective SSH_MSG_USERAUTH_FAILURE
+				// message, but Section 4 says the server should disconnect
+				// after some number of attempts, but it isn't explicit which
+				// message should take precedence (i.e. should there be a failure
+				// message than a disconnect message, or if we are going to
+				// disconnect, should we only send that message.)
+				//
+				// Either way, OpenSSH disconnects immediately after the last
+				// failed authentication attempt, and given they are typically
+				// considered the golden implementation it seems reasonable
+				// to match that behavior.
+				continue
+			}
 		}
 
-		var failureMsg userAuthFailureMsg
-		if config.PasswordCallback != nil {
+		if authConfig.PasswordCallback != nil {
 			failureMsg.Methods = append(failureMsg.Methods, "password")
 		}
-		if config.PublicKeyCallback != nil {
+		if authConfig.PublicKeyCallback != nil {
 			failureMsg.Methods = append(failureMsg.Methods, "publickey")
 		}
-		if config.KeyboardInteractiveCallback != nil {
+		if authConfig.KeyboardInteractiveCallback != nil {
 			failureMsg.Methods = append(failureMsg.Methods, "keyboard-interactive")
 		}
-		if config.GSSAPIWithMICConfig != nil && config.GSSAPIWithMICConfig.Server != nil &&
-			config.GSSAPIWithMICConfig.AllowLogin != nil {
+		if authConfig.GSSAPIWithMICConfig != nil && authConfig.GSSAPIWithMICConfig.Server != nil &&
+			authConfig.GSSAPIWithMICConfig.AllowLogin != nil {
 			failureMsg.Methods = append(failureMsg.Methods, "gssapi-with-mic")
 		}
 
 		if len(failureMsg.Methods) == 0 {
-			return nil, errors.New("ssh: no authentication methods configured but NoClientAuth is also false")
+			return nil, errors.New("ssh: no authentication methods available")
 		}
 
 		if err := s.transport.writePacket(Marshal(&failureMsg)); err != nil {