rebase: bump the golang-dependencies group with 3 updates

Bumps the golang-dependencies group with 3 updates: [golang.org/x/crypto](https://github.com/golang/crypto), [golang.org/x/net](https://github.com/golang/net) and [golang.org/x/sys](https://github.com/golang/sys).


Updates `golang.org/x/crypto` from 0.21.0 to 0.22.0
- [Commits](https://github.com/golang/crypto/compare/v0.21.0...v0.22.0)

Updates `golang.org/x/net` from 0.22.0 to 0.24.0
- [Commits](https://github.com/golang/net/compare/v0.22.0...v0.24.0)

Updates `golang.org/x/sys` from 0.18.0 to 0.19.0
- [Commits](https://github.com/golang/sys/compare/v0.18.0...v0.19.0)

---
updated-dependencies:
- dependency-name: golang.org/x/crypto
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-dependencies
- dependency-name: golang.org/x/net
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-dependencies
- dependency-name: golang.org/x/sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -27,9 +27,9 @@ require (
 	github.com/pkg/xattr v0.4.9
 	github.com/prometheus/client_golang v1.18.0
 	github.com/stretchr/testify v1.9.0
-	golang.org/x/crypto v0.21.0
+	golang.org/x/crypto v0.22.0
-	golang.org/x/net v0.22.0
+	golang.org/x/net v0.24.0
-	golang.org/x/sys v0.18.0
+	golang.org/x/sys v0.19.0
 	google.golang.org/grpc v1.62.1
 	google.golang.org/protobuf v1.33.0
 	//
@@ -163,7 +163,7 @@ require (
 	golang.org/x/exp v0.0.0-20220827204233-334a2380cb91 // indirect
 	golang.org/x/oauth2 v0.16.0 // indirect
 	golang.org/x/sync v0.6.0 // indirect
-	golang.org/x/term v0.18.0 // indirect
+	golang.org/x/term v0.19.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
 	golang.org/x/tools v0.16.1 // indirect

go.sum

@@ -1761,8 +1761,8 @@ golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliY
 golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4=
 golang.org/x/crypto v0.16.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
 golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
-golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA=
+golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
-golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs=
+golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -1908,8 +1908,8 @@ golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
 golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
 golang.org/x/net v0.19.0/go.mod h1:CfAk/cbD4CthTvqiEl8NpboMuiuOYsAr/7NOjZJtv1U=
-golang.org/x/net v0.22.0 h1:9sGLhx7iRIHEiX0oAJ3MRZMUCElJgy7Br1nO+AMN3Tc=
+golang.org/x/net v0.24.0 h1:1PcaxkF854Fu3+lvBIx5SYn9wRlBzzcnHZSiaFFAb0w=
-golang.org/x/net v0.22.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
+golang.org/x/net v0.24.0/go.mod h1:2Q7sJY5mzlzWjKtYUEXSlBWCdyaioyXzRB2RtU8KVE8=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -2078,8 +2078,8 @@ golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
+golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
-golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
@@ -2098,8 +2098,8 @@ golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
 golang.org/x/term v0.13.0/go.mod h1:LTmsnFJwVN6bCy1rVCoS+qHT1HhALEFxKncY3WNNh4U=
 golang.org/x/term v0.15.0/go.mod h1:BDl952bC7+uMoWR75FIrCDx79TPU9oHkTZ9yRbYOrX0=
 golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
-golang.org/x/term v0.18.0 h1:FcHjZXDMxI8mM3nwhX9HlKop4C0YQvCVCdwYl2wOtE8=
+golang.org/x/term v0.19.0 h1:+ThwsDv+tYfnJFhF4L8jITxu1tdTWRTZpdsWgEgjL6Q=
-golang.org/x/term v0.18.0/go.mod h1:ILwASektA3OnRv7amZ1xhE/KTR+u50pbXfZ03+6Nx58=
+golang.org/x/term v0.19.0/go.mod h1:2CuTdWZ7KHSQwUzKva0cbMg6q2DMI3Mmxp+gKJbskEk=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

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
+	VPERMXOR V12, V0, V21, V12
-	VXOR V13, V1, V13
+	VPERMXOR V13, V1, V21, V13
-	VXOR V14, V2, V14
+	VPERMXOR V14, V2, V21, V14
-	VXOR V15, V3, V15
+	VPERMXOR V15, V3, V21, V15
-
-	VRLW V12, V27, V12
-	VRLW V13, V27, V13
-	VRLW V14, V27, V14
-	VRLW V15, V27, 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
+	VPERMXOR V12, V0, V20, V12
-	VXOR V13, V1, V13
+	VPERMXOR V13, V1, V20, V13
-	VXOR V14, V2, V14
+	VPERMXOR V14, V2, V20, V14
-	VXOR V15, V3, V15
+	VPERMXOR V15, V3, V20, V15
-
-	VRLW V12, V29, V12
-	VRLW V13, V29, V13
-	VRLW V14, V29, V14
-	VRLW V15, V29, 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
+	VPERMXOR V15, V0, V21, V15
-	VXOR V12, V1, V12
+	VPERMXOR V12, V1, V21, V12
-	VXOR V13, V2, V13
+	VPERMXOR V13, V2, V21, V13
-	VXOR V14, V3, V14
+	VPERMXOR V14, V3, V21, V14
-
-	VRLW V15, V27, V15
-	VRLW V12, V27, V12
-	VRLW V13, V27, V13
-	VRLW V14, V27, 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
+	VPERMXOR V15, V0, V20, V15
-	VXOR V12, V1, V12
+	VPERMXOR V12, V1, V20, V12
-	VXOR V13, V2, V13
+	VPERMXOR V13, V2, V20, V13
-	VXOR V14, V3, V14
+	VPERMXOR V14, V3, V20, V14
-
-	VRLW V15, V29, V15
-	VRLW V12, V29, V12
-	VRLW V13, V29, V13
-	VRLW V14, V29, 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
+	VMRGEW V0, V1, V27
-	WORD $0x13821F8C		// VMRGEW V2, V3, V28
+	VMRGEW V2, V3, V28
 
-	WORD $0x10000E8C		// VMRGOW V0, V1, V0
+	VMRGOW V0, V1, V0
-	WORD $0x10421E8C		// VMRGOW V2, V3, V2
+	VMRGOW V2, V3, V2
 
-	WORD $0x13A42F8C		// VMRGEW V4, V5, V29
+	VMRGEW V4, V5, V29
-	WORD $0x13C63F8C		// VMRGEW V6, V7, V30
+	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
+	VMRGOW V4, V5, V4
-	WORD $0x10C63E8C		// VMRGOW V6, V7, V6
+	VMRGOW V6, V7, V6
 
-	WORD $0x13684F8C		// VMRGEW V8, V9, V27
+	VMRGEW V8, V9, V27
-	WORD $0x138A5F8C		// VMRGEW V10, V11, V28
+	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
+	VMRGOW V8, V9, V8
-	WORD $0x114A5E8C		// VMRGOW V10, V11, V10
+	VMRGOW V10, V11, V10
 
-	WORD $0x13AC6F8C		// VMRGEW V12, V13, V29
+	VMRGEW V12, V13, V29
-	WORD $0x13CE7F8C		// VMRGEW V14, V15, V30
+	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
+	VMRGOW V12, V13, V12
-	WORD $0x11CE7E8C		// VMRGOW V14, V15, V14
+	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)

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)
+				candidate.perms, candidate.result = authConfig.PublicKeyCallback(s, pubKey)
-				if candidate.result == nil && candidate.perms != nil && candidate.perms.CriticalOptions != nil && candidate.perms.CriticalOptions[sourceAddressCriticalOption] != "" {
+				_, isPartialSuccessError := candidate.result.(*PartialSuccessError)
-					candidate.result = checkSourceAddress(
+
+				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)
 				}
-
+				_, isPartialSuccessError := candidate.result.(*PartialSuccessError)
-				if candidate.result == nil {
+				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++
+		var failureMsg userAuthFailureMsg
-		if config.MaxAuthTries > 0 && authFailures >= config.MaxAuthTries {
+
-			// If we have hit the max attempts, don't bother sending the
+		if partialSuccess, ok := authErr.(*PartialSuccessError); ok {
-			// final SSH_MSG_USERAUTH_FAILURE message, since there are
+			// After a partial success error we don't allow changing the user
-			// no more authentication methods which can be attempted,
+			// name and execute the NoClientAuthCallback.
-			// and this message may cause the client to re-attempt
+			partialSuccessReturned = true
-			// authentication while we send the disconnect message.
+
-			// Continue, and trigger the disconnect at the start of
+			// In case a partial success is returned, the server may send
-			// the loop.
+			// a new set of authentication methods.
-			//
+			authConfig = partialSuccess.Next
-			// The SSH specification is somewhat confusing about this,
+
-			// RFC 4252 Section 5.1 requires each authentication failure
+			// Reset pubkey cache, as the new PublicKeyCallback might
-			// be responded to with a respective SSH_MSG_USERAUTH_FAILURE
+			// accept a different set of public keys.
-			// message, but Section 4 says the server should disconnect
+			cache = pubKeyCache{}
-			// after some number of attempts, but it isn't explicit which
+
-			// message should take precedence (i.e. should there be a failure
+			// Send back a partial success message to the user.
-			// message than a disconnect message, or if we are going to
+			failureMsg.PartialSuccess = true
-			// disconnect, should we only send that message.)
+		} else {
-			//
+			// Allow initial attempt of 'none' without penalty.
-			// Either way, OpenSSH disconnects immediately after the last
+			if authFailures > 0 || userAuthReq.Method != "none" || noneAuthCount != 1 {
-			// failed authnetication attempt, and given they are typically
+				authFailures++
-			// considered the golden implementation it seems reasonable
+			}
-			// to match that behavior.
+			if config.MaxAuthTries > 0 && authFailures >= config.MaxAuthTries {
-			continue
+				// 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 authConfig.PasswordCallback != nil {
-		if config.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 &&
+		if authConfig.GSSAPIWithMICConfig != nil && authConfig.GSSAPIWithMICConfig.Server != nil &&
-			config.GSSAPIWithMICConfig.AllowLogin != 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 {

vendor/golang.org/x/net/http2/frame.go

@@ -1564,6 +1564,7 @@ func (fr *Framer) readMetaFrame(hf *HeadersFrame) (*MetaHeadersFrame, error) {
 		if size > remainSize {
 			hdec.SetEmitEnabled(false)
 			mh.Truncated = true
+			remainSize = 0
 			return
 		}
 		remainSize -= size
@@ -1576,6 +1577,36 @@ func (fr *Framer) readMetaFrame(hf *HeadersFrame) (*MetaHeadersFrame, error) {
 	var hc headersOrContinuation = hf
 	for {
 		frag := hc.HeaderBlockFragment()
+
+		// Avoid parsing large amounts of headers that we will then discard.
+		// If the sender exceeds the max header list size by too much,
+		// skip parsing the fragment and close the connection.
+		//
+		// "Too much" is either any CONTINUATION frame after we've already
+		// exceeded the max header list size (in which case remainSize is 0),
+		// or a frame whose encoded size is more than twice the remaining
+		// header list bytes we're willing to accept.
+		if int64(len(frag)) > int64(2*remainSize) {
+			if VerboseLogs {
+				log.Printf("http2: header list too large")
+			}
+			// It would be nice to send a RST_STREAM before sending the GOAWAY,
+			// but the structure of the server's frame writer makes this difficult.
+			return nil, ConnectionError(ErrCodeProtocol)
+		}
+
+		// Also close the connection after any CONTINUATION frame following an
+		// invalid header, since we stop tracking the size of the headers after
+		// an invalid one.
+		if invalid != nil {
+			if VerboseLogs {
+				log.Printf("http2: invalid header: %v", invalid)
+			}
+			// It would be nice to send a RST_STREAM before sending the GOAWAY,
+			// but the structure of the server's frame writer makes this difficult.
+			return nil, ConnectionError(ErrCodeProtocol)
+		}
+
 		if _, err := hdec.Write(frag); err != nil {
 			return nil, ConnectionError(ErrCodeCompression)
 		}

vendor/golang.org/x/net/http2/pipe.go

@@ -77,7 +77,10 @@ func (p *pipe) Read(d []byte) (n int, err error) {
 	}
 }
 
-var errClosedPipeWrite = errors.New("write on closed buffer")
+var (
+	errClosedPipeWrite        = errors.New("write on closed buffer")
+	errUninitializedPipeWrite = errors.New("write on uninitialized buffer")
+)
 
 // Write copies bytes from p into the buffer and wakes a reader.
 // It is an error to write more data than the buffer can hold.
@@ -91,6 +94,12 @@ func (p *pipe) Write(d []byte) (n int, err error) {
 	if p.err != nil || p.breakErr != nil {
 		return 0, errClosedPipeWrite
 	}
+	// pipe.setBuffer is never invoked, leaving the buffer uninitialized.
+	// We shouldn't try to write to an uninitialized pipe,
+	// but returning an error is better than panicking.
+	if p.b == nil {
+		return 0, errUninitializedPipeWrite
+	}
 	return p.b.Write(d)
 }
 

vendor/golang.org/x/net/http2/server.go

@@ -124,6 +124,7 @@ type Server struct {
 	// IdleTimeout specifies how long until idle clients should be
 	// closed with a GOAWAY frame. PING frames are not considered
 	// activity for the purposes of IdleTimeout.
+	// If zero or negative, there is no timeout.
 	IdleTimeout time.Duration
 
 	// MaxUploadBufferPerConnection is the size of the initial flow
@@ -434,7 +435,7 @@ func (s *Server) ServeConn(c net.Conn, opts *ServeConnOpts) {
 	// passes the connection off to us with the deadline already set.
 	// Write deadlines are set per stream in serverConn.newStream.
 	// Disarm the net.Conn write deadline here.
-	if sc.hs.WriteTimeout != 0 {
+	if sc.hs.WriteTimeout > 0 {
 		sc.conn.SetWriteDeadline(time.Time{})
 	}
 
@@ -924,7 +925,7 @@ func (sc *serverConn) serve() {
 	sc.setConnState(http.StateActive)
 	sc.setConnState(http.StateIdle)
 
-	if sc.srv.IdleTimeout != 0 {
+	if sc.srv.IdleTimeout > 0 {
 		sc.idleTimer = time.AfterFunc(sc.srv.IdleTimeout, sc.onIdleTimer)
 		defer sc.idleTimer.Stop()
 	}
@@ -1637,7 +1638,7 @@ func (sc *serverConn) closeStream(st *stream, err error) {
 	delete(sc.streams, st.id)
 	if len(sc.streams) == 0 {
 		sc.setConnState(http.StateIdle)
-		if sc.srv.IdleTimeout != 0 {
+		if sc.srv.IdleTimeout > 0 {
 			sc.idleTimer.Reset(sc.srv.IdleTimeout)
 		}
 		if h1ServerKeepAlivesDisabled(sc.hs) {
@@ -2017,7 +2018,7 @@ func (sc *serverConn) processHeaders(f *MetaHeadersFrame) error {
 	// similar to how the http1 server works. Here it's
 	// technically more like the http1 Server's ReadHeaderTimeout
 	// (in Go 1.8), though. That's a more sane option anyway.
-	if sc.hs.ReadTimeout != 0 {
+	if sc.hs.ReadTimeout > 0 {
 		sc.conn.SetReadDeadline(time.Time{})
 		st.readDeadline = time.AfterFunc(sc.hs.ReadTimeout, st.onReadTimeout)
 	}
@@ -2038,7 +2039,7 @@ func (sc *serverConn) upgradeRequest(req *http.Request) {
 
 	// Disable any read deadline set by the net/http package
 	// prior to the upgrade.
-	if sc.hs.ReadTimeout != 0 {
+	if sc.hs.ReadTimeout > 0 {
 		sc.conn.SetReadDeadline(time.Time{})
 	}
 
@@ -2116,7 +2117,7 @@ func (sc *serverConn) newStream(id, pusherID uint32, state streamState) *stream
 	st.flow.conn = &sc.flow // link to conn-level counter
 	st.flow.add(sc.initialStreamSendWindowSize)
 	st.inflow.init(sc.srv.initialStreamRecvWindowSize())
-	if sc.hs.WriteTimeout != 0 {
+	if sc.hs.WriteTimeout > 0 {
 		st.writeDeadline = time.AfterFunc(sc.hs.WriteTimeout, st.onWriteTimeout)
 	}
 

vendor/golang.org/x/net/http2/testsync.go

@@ -0,0 +1,331 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+package http2
+
+import (
+	"context"
+	"sync"
+	"time"
+)
+
+// testSyncHooks coordinates goroutines in tests.
+//
+// For example, a call to ClientConn.RoundTrip involves several goroutines, including:
+//   - the goroutine running RoundTrip;
+//   - the clientStream.doRequest goroutine, which writes the request; and
+//   - the clientStream.readLoop goroutine, which reads the response.
+//
+// Using testSyncHooks, a test can start a RoundTrip and identify when all these goroutines
+// are blocked waiting for some condition such as reading the Request.Body or waiting for
+// flow control to become available.
+//
+// The testSyncHooks also manage timers and synthetic time in tests.
+// This permits us to, for example, start a request and cause it to time out waiting for
+// response headers without resorting to time.Sleep calls.
+type testSyncHooks struct {
+	// active/inactive act as a mutex and condition variable.
+	//
+	//  - neither chan contains a value: testSyncHooks is locked.
+	//  - active contains a value: unlocked, and at least one goroutine is not blocked
+	//  - inactive contains a value: unlocked, and all goroutines are blocked
+	active   chan struct{}
+	inactive chan struct{}
+
+	// goroutine counts
+	total    int                     // total goroutines
+	condwait map[*sync.Cond]int      // blocked in sync.Cond.Wait
+	blocked  []*testBlockedGoroutine // otherwise blocked
+
+	// fake time
+	now    time.Time
+	timers []*fakeTimer
+
+	// Transport testing: Report various events.
+	newclientconn func(*ClientConn)
+	newstream     func(*clientStream)
+}
+
+// testBlockedGoroutine is a blocked goroutine.
+type testBlockedGoroutine struct {
+	f  func() bool   // blocked until f returns true
+	ch chan struct{} // closed when unblocked
+}
+
+func newTestSyncHooks() *testSyncHooks {
+	h := &testSyncHooks{
+		active:   make(chan struct{}, 1),
+		inactive: make(chan struct{}, 1),
+		condwait: map[*sync.Cond]int{},
+	}
+	h.inactive <- struct{}{}
+	h.now = time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)
+	return h
+}
+
+// lock acquires the testSyncHooks mutex.
+func (h *testSyncHooks) lock() {
+	select {
+	case <-h.active:
+	case <-h.inactive:
+	}
+}
+
+// waitInactive waits for all goroutines to become inactive.
+func (h *testSyncHooks) waitInactive() {
+	for {
+		<-h.inactive
+		if !h.unlock() {
+			break
+		}
+	}
+}
+
+// unlock releases the testSyncHooks mutex.
+// It reports whether any goroutines are active.
+func (h *testSyncHooks) unlock() (active bool) {
+	// Look for a blocked goroutine which can be unblocked.
+	blocked := h.blocked[:0]
+	unblocked := false
+	for _, b := range h.blocked {
+		if !unblocked && b.f() {
+			unblocked = true
+			close(b.ch)
+		} else {
+			blocked = append(blocked, b)
+		}
+	}
+	h.blocked = blocked
+
+	// Count goroutines blocked on condition variables.
+	condwait := 0
+	for _, count := range h.condwait {
+		condwait += count
+	}
+
+	if h.total > condwait+len(blocked) {
+		h.active <- struct{}{}
+		return true
+	} else {
+		h.inactive <- struct{}{}
+		return false
+	}
+}
+
+// goRun starts a new goroutine.
+func (h *testSyncHooks) goRun(f func()) {
+	h.lock()
+	h.total++
+	h.unlock()
+	go func() {
+		defer func() {
+			h.lock()
+			h.total--
+			h.unlock()
+		}()
+		f()
+	}()
+}
+
+// blockUntil indicates that a goroutine is blocked waiting for some condition to become true.
+// It waits until f returns true before proceeding.
+//
+// Example usage:
+//
+//	h.blockUntil(func() bool {
+//		// Is the context done yet?
+//		select {
+//		case <-ctx.Done():
+//		default:
+//			return false
+//		}
+//		return true
+//	})
+//	// Wait for the context to become done.
+//	<-ctx.Done()
+//
+// The function f passed to blockUntil must be non-blocking and idempotent.
+func (h *testSyncHooks) blockUntil(f func() bool) {
+	if f() {
+		return
+	}
+	ch := make(chan struct{})
+	h.lock()
+	h.blocked = append(h.blocked, &testBlockedGoroutine{
+		f:  f,
+		ch: ch,
+	})
+	h.unlock()
+	<-ch
+}
+
+// broadcast is sync.Cond.Broadcast.
+func (h *testSyncHooks) condBroadcast(cond *sync.Cond) {
+	h.lock()
+	delete(h.condwait, cond)
+	h.unlock()
+	cond.Broadcast()
+}
+
+// broadcast is sync.Cond.Wait.
+func (h *testSyncHooks) condWait(cond *sync.Cond) {
+	h.lock()
+	h.condwait[cond]++
+	h.unlock()
+}
+
+// newTimer creates a new fake timer.
+func (h *testSyncHooks) newTimer(d time.Duration) timer {
+	h.lock()
+	defer h.unlock()
+	t := &fakeTimer{
+		hooks: h,
+		when:  h.now.Add(d),
+		c:     make(chan time.Time),
+	}
+	h.timers = append(h.timers, t)
+	return t
+}
+
+// afterFunc creates a new fake AfterFunc timer.
+func (h *testSyncHooks) afterFunc(d time.Duration, f func()) timer {
+	h.lock()
+	defer h.unlock()
+	t := &fakeTimer{
+		hooks: h,
+		when:  h.now.Add(d),
+		f:     f,
+	}
+	h.timers = append(h.timers, t)
+	return t
+}
+
+func (h *testSyncHooks) contextWithTimeout(ctx context.Context, d time.Duration) (context.Context, context.CancelFunc) {
+	ctx, cancel := context.WithCancel(ctx)
+	t := h.afterFunc(d, cancel)
+	return ctx, func() {
+		t.Stop()
+		cancel()
+	}
+}
+
+func (h *testSyncHooks) timeUntilEvent() time.Duration {
+	h.lock()
+	defer h.unlock()
+	var next time.Time
+	for _, t := range h.timers {
+		if next.IsZero() || t.when.Before(next) {
+			next = t.when
+		}
+	}
+	if d := next.Sub(h.now); d > 0 {
+		return d
+	}
+	return 0
+}
+
+// advance advances time and causes synthetic timers to fire.
+func (h *testSyncHooks) advance(d time.Duration) {
+	h.lock()
+	defer h.unlock()
+	h.now = h.now.Add(d)
+	timers := h.timers[:0]
+	for _, t := range h.timers {
+		t := t // remove after go.mod depends on go1.22
+		t.mu.Lock()
+		switch {
+		case t.when.After(h.now):
+			timers = append(timers, t)
+		case t.when.IsZero():
+			// stopped timer
+		default:
+			t.when = time.Time{}
+			if t.c != nil {
+				close(t.c)
+			}
+			if t.f != nil {
+				h.total++
+				go func() {
+					defer func() {
+						h.lock()
+						h.total--
+						h.unlock()
+					}()
+					t.f()
+				}()
+			}
+		}
+		t.mu.Unlock()
+	}
+	h.timers = timers
+}
+
+// A timer wraps a time.Timer, or a synthetic equivalent in tests.
+// Unlike time.Timer, timer is single-use: The timer channel is closed when the timer expires.
+type timer interface {
+	C() <-chan time.Time
+	Stop() bool
+	Reset(d time.Duration) bool
+}
+
+// timeTimer implements timer using real time.
+type timeTimer struct {
+	t *time.Timer
+	c chan time.Time
+}
+
+// newTimeTimer creates a new timer using real time.
+func newTimeTimer(d time.Duration) timer {
+	ch := make(chan time.Time)
+	t := time.AfterFunc(d, func() {
+		close(ch)
+	})
+	return &timeTimer{t, ch}
+}
+
+// newTimeAfterFunc creates an AfterFunc timer using real time.
+func newTimeAfterFunc(d time.Duration, f func()) timer {
+	return &timeTimer{
+		t: time.AfterFunc(d, f),
+	}
+}
+
+func (t timeTimer) C() <-chan time.Time        { return t.c }
+func (t timeTimer) Stop() bool                 { return t.t.Stop() }
+func (t timeTimer) Reset(d time.Duration) bool { return t.t.Reset(d) }
+
+// fakeTimer implements timer using fake time.
+type fakeTimer struct {
+	hooks *testSyncHooks
+
+	mu   sync.Mutex
+	when time.Time      // when the timer will fire
+	c    chan time.Time // closed when the timer fires; mutually exclusive with f
+	f    func()         // called when the timer fires; mutually exclusive with c
+}
+
+func (t *fakeTimer) C() <-chan time.Time { return t.c }
+
+func (t *fakeTimer) Stop() bool {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	stopped := t.when.IsZero()
+	t.when = time.Time{}
+	return stopped
+}
+
+func (t *fakeTimer) Reset(d time.Duration) bool {
+	if t.c != nil || t.f == nil {
+		panic("fakeTimer only supports Reset on AfterFunc timers")
+	}
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	t.hooks.lock()
+	defer t.hooks.unlock()
+	active := !t.when.IsZero()
+	t.when = t.hooks.now.Add(d)
+	if !active {
+		t.hooks.timers = append(t.hooks.timers, t)
+	}
+	return active
+}

vendor/golang.org/x/net/http2/transport.go

@@ -147,6 +147,12 @@ type Transport struct {
 	// waiting for their turn.
 	StrictMaxConcurrentStreams bool
 
+	// IdleConnTimeout is the maximum amount of time an idle
+	// (keep-alive) connection will remain idle before closing
+	// itself.
+	// Zero means no limit.
+	IdleConnTimeout time.Duration
+
 	// ReadIdleTimeout is the timeout after which a health check using ping
 	// frame will be carried out if no frame is received on the connection.
 	// Note that a ping response will is considered a received frame, so if
@@ -178,6 +184,8 @@ type Transport struct {
 
 	connPoolOnce  sync.Once
 	connPoolOrDef ClientConnPool // non-nil version of ConnPool
+
+	syncHooks *testSyncHooks
 }
 
 func (t *Transport) maxHeaderListSize() uint32 {
@@ -302,7 +310,7 @@ type ClientConn struct {
 	readerErr  error         // set before readerDone is closed
 
 	idleTimeout time.Duration // or 0 for never
-	idleTimer   *time.Timer
+	idleTimer   timer
 
 	mu              sync.Mutex // guards following
 	cond            *sync.Cond // hold mu; broadcast on flow/closed changes
@@ -344,6 +352,60 @@ type ClientConn struct {
 	werr error        // first write error that has occurred
 	hbuf bytes.Buffer // HPACK encoder writes into this
 	henc *hpack.Encoder
+
+	syncHooks *testSyncHooks // can be nil
+}
+
+// Hook points used for testing.
+// Outside of tests, cc.syncHooks is nil and these all have minimal implementations.
+// Inside tests, see the testSyncHooks function docs.
+
+// goRun starts a new goroutine.
+func (cc *ClientConn) goRun(f func()) {
+	if cc.syncHooks != nil {
+		cc.syncHooks.goRun(f)
+		return
+	}
+	go f()
+}
+
+// condBroadcast is cc.cond.Broadcast.
+func (cc *ClientConn) condBroadcast() {
+	if cc.syncHooks != nil {
+		cc.syncHooks.condBroadcast(cc.cond)
+	}
+	cc.cond.Broadcast()
+}
+
+// condWait is cc.cond.Wait.
+func (cc *ClientConn) condWait() {
+	if cc.syncHooks != nil {
+		cc.syncHooks.condWait(cc.cond)
+	}
+	cc.cond.Wait()
+}
+
+// newTimer creates a new time.Timer, or a synthetic timer in tests.
+func (cc *ClientConn) newTimer(d time.Duration) timer {
+	if cc.syncHooks != nil {
+		return cc.syncHooks.newTimer(d)
+	}
+	return newTimeTimer(d)
+}
+
+// afterFunc creates a new time.AfterFunc timer, or a synthetic timer in tests.
+func (cc *ClientConn) afterFunc(d time.Duration, f func()) timer {
+	if cc.syncHooks != nil {
+		return cc.syncHooks.afterFunc(d, f)
+	}
+	return newTimeAfterFunc(d, f)
+}
+
+func (cc *ClientConn) contextWithTimeout(ctx context.Context, d time.Duration) (context.Context, context.CancelFunc) {
+	if cc.syncHooks != nil {
+		return cc.syncHooks.contextWithTimeout(ctx, d)
+	}
+	return context.WithTimeout(ctx, d)
 }
 
 // clientStream is the state for a single HTTP/2 stream. One of these
@@ -425,7 +487,7 @@ func (cs *clientStream) abortStreamLocked(err error) {
 	// TODO(dneil): Clean up tests where cs.cc.cond is nil.
 	if cs.cc.cond != nil {
 		// Wake up writeRequestBody if it is waiting on flow control.
-		cs.cc.cond.Broadcast()
+		cs.cc.condBroadcast()
 	}
 }
 
@@ -435,7 +497,7 @@ func (cs *clientStream) abortRequestBodyWrite() {
 	defer cc.mu.Unlock()
 	if cs.reqBody != nil && cs.reqBodyClosed == nil {
 		cs.closeReqBodyLocked()
-		cc.cond.Broadcast()
+		cc.condBroadcast()
 	}
 }
 
@@ -445,10 +507,10 @@ func (cs *clientStream) closeReqBodyLocked() {
 	}
 	cs.reqBodyClosed = make(chan struct{})
 	reqBodyClosed := cs.reqBodyClosed
-	go func() {
+	cs.cc.goRun(func() {
 		cs.reqBody.Close()
 		close(reqBodyClosed)
-	}()
+	})
 }
 
 type stickyErrWriter struct {
@@ -537,15 +599,6 @@ func authorityAddr(scheme string, authority string) (addr string) {
 	return net.JoinHostPort(host, port)
 }
 
-var retryBackoffHook func(time.Duration) *time.Timer
-
-func backoffNewTimer(d time.Duration) *time.Timer {
-	if retryBackoffHook != nil {
-		return retryBackoffHook(d)
-	}
-	return time.NewTimer(d)
-}
-
 // RoundTripOpt is like RoundTrip, but takes options.
 func (t *Transport) RoundTripOpt(req *http.Request, opt RoundTripOpt) (*http.Response, error) {
 	if !(req.URL.Scheme == "https" || (req.URL.Scheme == "http" && t.AllowHTTP)) {
@@ -573,13 +626,27 @@ func (t *Transport) RoundTripOpt(req *http.Request, opt RoundTripOpt) (*http.Res
 				backoff := float64(uint(1) << (uint(retry) - 1))
 				backoff += backoff * (0.1 * mathrand.Float64())
 				d := time.Second * time.Duration(backoff)
-				timer := backoffNewTimer(d)
+				var tm timer
+				if t.syncHooks != nil {
+					tm = t.syncHooks.newTimer(d)
+					t.syncHooks.blockUntil(func() bool {
+						select {
+						case <-tm.C():
+						case <-req.Context().Done():
+						default:
+							return false
+						}
+						return true
+					})
+				} else {
+					tm = newTimeTimer(d)
+				}
 				select {
-				case <-timer.C:
+				case <-tm.C():
 					t.vlogf("RoundTrip retrying after failure: %v", roundTripErr)
 					continue
 				case <-req.Context().Done():
-					timer.Stop()
+					tm.Stop()
 					err = req.Context().Err()
 				}
 			}
@@ -658,6 +725,9 @@ func canRetryError(err error) bool {
 }
 
 func (t *Transport) dialClientConn(ctx context.Context, addr string, singleUse bool) (*ClientConn, error) {
+	if t.syncHooks != nil {
+		return t.newClientConn(nil, singleUse, t.syncHooks)
+	}
 	host, _, err := net.SplitHostPort(addr)
 	if err != nil {
 		return nil, err
@@ -666,7 +736,7 @@ func (t *Transport) dialClientConn(ctx context.Context, addr string, singleUse b
 	if err != nil {
 		return nil, err
 	}
-	return t.newClientConn(tconn, singleUse)
+	return t.newClientConn(tconn, singleUse, nil)
 }
 
 func (t *Transport) newTLSConfig(host string) *tls.Config {
@@ -732,10 +802,10 @@ func (t *Transport) maxEncoderHeaderTableSize() uint32 {
 }
 
 func (t *Transport) NewClientConn(c net.Conn) (*ClientConn, error) {
-	return t.newClientConn(c, t.disableKeepAlives())
+	return t.newClientConn(c, t.disableKeepAlives(), nil)
 }
 
-func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, error) {
+func (t *Transport) newClientConn(c net.Conn, singleUse bool, hooks *testSyncHooks) (*ClientConn, error) {
 	cc := &ClientConn{
 		t:                     t,
 		tconn:                 c,
@@ -750,10 +820,15 @@ func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, erro
 		wantSettingsAck:       true,
 		pings:                 make(map[[8]byte]chan struct{}),
 		reqHeaderMu:           make(chan struct{}, 1),
+		syncHooks:             hooks,
+	}
+	if hooks != nil {
+		hooks.newclientconn(cc)
+		c = cc.tconn
 	}
 	if d := t.idleConnTimeout(); d != 0 {
 		cc.idleTimeout = d
-		cc.idleTimer = time.AfterFunc(d, cc.onIdleTimeout)
+		cc.idleTimer = cc.afterFunc(d, cc.onIdleTimeout)
 	}
 	if VerboseLogs {
 		t.vlogf("http2: Transport creating client conn %p to %v", cc, c.RemoteAddr())
@@ -818,7 +893,7 @@ func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, erro
 		return nil, cc.werr
 	}
 
-	go cc.readLoop()
+	cc.goRun(cc.readLoop)
 	return cc, nil
 }
 
@@ -826,7 +901,7 @@ func (cc *ClientConn) healthCheck() {
 	pingTimeout := cc.t.pingTimeout()
 	// We don't need to periodically ping in the health check, because the readLoop of ClientConn will
 	// trigger the healthCheck again if there is no frame received.
-	ctx, cancel := context.WithTimeout(context.Background(), pingTimeout)
+	ctx, cancel := cc.contextWithTimeout(context.Background(), pingTimeout)
 	defer cancel()
 	cc.vlogf("http2: Transport sending health check")
 	err := cc.Ping(ctx)
@@ -1056,7 +1131,7 @@ func (cc *ClientConn) Shutdown(ctx context.Context) error {
 	// Wait for all in-flight streams to complete or connection to close
 	done := make(chan struct{})
 	cancelled := false // guarded by cc.mu
-	go func() {
+	cc.goRun(func() {
 		cc.mu.Lock()
 		defer cc.mu.Unlock()
 		for {
@@ -1068,9 +1143,9 @@ func (cc *ClientConn) Shutdown(ctx context.Context) error {
 			if cancelled {
 				break
 			}
-			cc.cond.Wait()
+			cc.condWait()
 		}
-	}()
+	})
 	shutdownEnterWaitStateHook()
 	select {
 	case <-done:
@@ -1080,7 +1155,7 @@ func (cc *ClientConn) Shutdown(ctx context.Context) error {
 		cc.mu.Lock()
 		// Free the goroutine above
 		cancelled = true
-		cc.cond.Broadcast()
+		cc.condBroadcast()
 		cc.mu.Unlock()
 		return ctx.Err()
 	}
@@ -1118,7 +1193,7 @@ func (cc *ClientConn) closeForError(err error) {
 	for _, cs := range cc.streams {
 		cs.abortStreamLocked(err)
 	}
-	cc.cond.Broadcast()
+	cc.condBroadcast()
 	cc.mu.Unlock()
 	cc.closeConn()
 }
@@ -1215,6 +1290,10 @@ func (cc *ClientConn) decrStreamReservationsLocked() {
 }
 
 func (cc *ClientConn) RoundTrip(req *http.Request) (*http.Response, error) {
+	return cc.roundTrip(req, nil)
+}
+
+func (cc *ClientConn) roundTrip(req *http.Request, streamf func(*clientStream)) (*http.Response, error) {
 	ctx := req.Context()
 	cs := &clientStream{
 		cc:                   cc,
@@ -1229,9 +1308,23 @@ func (cc *ClientConn) RoundTrip(req *http.Request) (*http.Response, error) {
 		respHeaderRecv:       make(chan struct{}),
 		donec:                make(chan struct{}),
 	}
-	go cs.doRequest(req)
+	cc.goRun(func() {
+		cs.doRequest(req)
+	})
 
 	waitDone := func() error {
+		if cc.syncHooks != nil {
+			cc.syncHooks.blockUntil(func() bool {
+				select {
+				case <-cs.donec:
+				case <-ctx.Done():
+				case <-cs.reqCancel:
+				default:
+					return false
+				}
+				return true
+			})
+		}
 		select {
 		case <-cs.donec:
 			return nil
@@ -1292,7 +1385,24 @@ func (cc *ClientConn) RoundTrip(req *http.Request) (*http.Response, error) {
 		return err
 	}
 
+	if streamf != nil {
+		streamf(cs)
+	}
+
 	for {
+		if cc.syncHooks != nil {
+			cc.syncHooks.blockUntil(func() bool {
+				select {
+				case <-cs.respHeaderRecv:
+				case <-cs.abort:
+				case <-ctx.Done():
+				case <-cs.reqCancel:
+				default:
+					return false
+				}
+				return true
+			})
+		}
 		select {
 		case <-cs.respHeaderRecv:
 			return handleResponseHeaders()
@@ -1348,6 +1458,21 @@ func (cs *clientStream) writeRequest(req *http.Request) (err error) {
 	if cc.reqHeaderMu == nil {
 		panic("RoundTrip on uninitialized ClientConn") // for tests
 	}
+	var newStreamHook func(*clientStream)
+	if cc.syncHooks != nil {
+		newStreamHook = cc.syncHooks.newstream
+		cc.syncHooks.blockUntil(func() bool {
+			select {
+			case cc.reqHeaderMu <- struct{}{}:
+				<-cc.reqHeaderMu
+			case <-cs.reqCancel:
+			case <-ctx.Done():
+			default:
+				return false
+			}
+			return true
+		})
+	}
 	select {
 	case cc.reqHeaderMu <- struct{}{}:
 	case <-cs.reqCancel:
@@ -1372,6 +1497,10 @@ func (cs *clientStream) writeRequest(req *http.Request) (err error) {
 	}
 	cc.mu.Unlock()
 
+	if newStreamHook != nil {
+		newStreamHook(cs)
+	}
+
 	// TODO(bradfitz): this is a copy of the logic in net/http. Unify somewhere?
 	if !cc.t.disableCompression() &&
 		req.Header.Get("Accept-Encoding") == "" &&
@@ -1452,15 +1581,30 @@ func (cs *clientStream) writeRequest(req *http.Request) (err error) {
 	var respHeaderTimer <-chan time.Time
 	var respHeaderRecv chan struct{}
 	if d := cc.responseHeaderTimeout(); d != 0 {
-		timer := time.NewTimer(d)
+		timer := cc.newTimer(d)
 		defer timer.Stop()
-		respHeaderTimer = timer.C
+		respHeaderTimer = timer.C()
 		respHeaderRecv = cs.respHeaderRecv
 	}
 	// Wait until the peer half-closes its end of the stream,
 	// or until the request is aborted (via context, error, or otherwise),
 	// whichever comes first.
 	for {
+		if cc.syncHooks != nil {
+			cc.syncHooks.blockUntil(func() bool {
+				select {
+				case <-cs.peerClosed:
+				case <-respHeaderTimer:
+				case <-respHeaderRecv:
+				case <-cs.abort:
+				case <-ctx.Done():
+				case <-cs.reqCancel:
+				default:
+					return false
+				}
+				return true
+			})
+		}
 		select {
 		case <-cs.peerClosed:
 			return nil
@@ -1609,7 +1753,7 @@ func (cc *ClientConn) awaitOpenSlotForStreamLocked(cs *clientStream) error {
 			return nil
 		}
 		cc.pendingRequests++
-		cc.cond.Wait()
+		cc.condWait()
 		cc.pendingRequests--
 		select {
 		case <-cs.abort:
@@ -1871,10 +2015,26 @@ func (cs *clientStream) awaitFlowControl(maxBytes int) (taken int32, err error)
 			cs.flow.take(take)
 			return take, nil
 		}
-		cc.cond.Wait()
+		cc.condWait()
 	}
 }
 
+func validateHeaders(hdrs http.Header) string {
+	for k, vv := range hdrs {
+		if !httpguts.ValidHeaderFieldName(k) {
+			return fmt.Sprintf("name %q", k)
+		}
+		for _, v := range vv {
+			if !httpguts.ValidHeaderFieldValue(v) {
+				// Don't include the value in the error,
+				// because it may be sensitive.
+				return fmt.Sprintf("value for header %q", k)
+			}
+		}
+	}
+	return ""
+}
+
 var errNilRequestURL = errors.New("http2: Request.URI is nil")
 
 // requires cc.wmu be held.
@@ -1912,19 +2072,14 @@ func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trail
 		}
 	}
 
-	// Check for any invalid headers and return an error before we
+	// Check for any invalid headers+trailers and return an error before we
 	// potentially pollute our hpack state. (We want to be able to
 	// continue to reuse the hpack encoder for future requests)
-	for k, vv := range req.Header {
+	if err := validateHeaders(req.Header); err != "" {
-		if !httpguts.ValidHeaderFieldName(k) {
+		return nil, fmt.Errorf("invalid HTTP header %s", err)
-			return nil, fmt.Errorf("invalid HTTP header name %q", k)
+	}
-		}
+	if err := validateHeaders(req.Trailer); err != "" {
-		for _, v := range vv {
+		return nil, fmt.Errorf("invalid HTTP trailer %s", err)
-			if !httpguts.ValidHeaderFieldValue(v) {
-				// Don't include the value in the error, because it may be sensitive.
-				return nil, fmt.Errorf("invalid HTTP header value for header %q", k)
-			}
-		}
 	}
 
 	enumerateHeaders := func(f func(name, value string)) {
@@ -2143,7 +2298,7 @@ func (cc *ClientConn) forgetStreamID(id uint32) {
 	}
 	// Wake up writeRequestBody via clientStream.awaitFlowControl and
 	// wake up RoundTrip if there is a pending request.
-	cc.cond.Broadcast()
+	cc.condBroadcast()
 
 	closeOnIdle := cc.singleUse || cc.doNotReuse || cc.t.disableKeepAlives() || cc.goAway != nil
 	if closeOnIdle && cc.streamsReserved == 0 && len(cc.streams) == 0 {
@@ -2231,7 +2386,7 @@ func (rl *clientConnReadLoop) cleanup() {
 			cs.abortStreamLocked(err)
 		}
 	}
-	cc.cond.Broadcast()
+	cc.condBroadcast()
 	cc.mu.Unlock()
 }
 
@@ -2266,10 +2421,9 @@ func (rl *clientConnReadLoop) run() error {
 	cc := rl.cc
 	gotSettings := false
 	readIdleTimeout := cc.t.ReadIdleTimeout
-	var t *time.Timer
+	var t timer
 	if readIdleTimeout != 0 {
-		t = time.AfterFunc(readIdleTimeout, cc.healthCheck)
+		t = cc.afterFunc(readIdleTimeout, cc.healthCheck)
-		defer t.Stop()
 	}
 	for {
 		f, err := cc.fr.ReadFrame()
@@ -2684,7 +2838,7 @@ func (rl *clientConnReadLoop) processData(f *DataFrame) error {
 		})
 		return nil
 	}
-	if !cs.firstByte {
+	if !cs.pastHeaders {
 		cc.logf("protocol error: received DATA before a HEADERS frame")
 		rl.endStreamError(cs, StreamError{
 			StreamID: f.StreamID,
@@ -2867,7 +3021,7 @@ func (rl *clientConnReadLoop) processSettingsNoWrite(f *SettingsFrame) error {
 			for _, cs := range cc.streams {
 				cs.flow.add(delta)
 			}
-			cc.cond.Broadcast()
+			cc.condBroadcast()
 
 			cc.initialWindowSize = s.Val
 		case SettingHeaderTableSize:
@@ -2922,7 +3076,7 @@ func (rl *clientConnReadLoop) processWindowUpdate(f *WindowUpdateFrame) error {
 
 		return ConnectionError(ErrCodeFlowControl)
 	}
-	cc.cond.Broadcast()
+	cc.condBroadcast()
 	return nil
 }
 
@@ -2964,24 +3118,38 @@ func (cc *ClientConn) Ping(ctx context.Context) error {
 		}
 		cc.mu.Unlock()
 	}
-	errc := make(chan error, 1)
+	var pingError error
-	go func() {
+	errc := make(chan struct{})
+	cc.goRun(func() {
 		cc.wmu.Lock()
 		defer cc.wmu.Unlock()
-		if err := cc.fr.WritePing(false, p); err != nil {
+		if pingError = cc.fr.WritePing(false, p); pingError != nil {
-			errc <- err
+			close(errc)
 			return
 		}
-		if err := cc.bw.Flush(); err != nil {
+		if pingError = cc.bw.Flush(); pingError != nil {
-			errc <- err
+			close(errc)
 			return
 		}
-	}()
+	})
+	if cc.syncHooks != nil {
+		cc.syncHooks.blockUntil(func() bool {
+			select {
+			case <-c:
+			case <-errc:
+			case <-ctx.Done():
+			case <-cc.readerDone:
+			default:
+				return false
+			}
+			return true
+		})
+	}
 	select {
 	case <-c:
 		return nil
-	case err := <-errc:
+	case <-errc:
-		return err
+		return pingError
 	case <-ctx.Done():
 		return ctx.Err()
 	case <-cc.readerDone:
@@ -3150,9 +3318,17 @@ func (rt noDialH2RoundTripper) RoundTrip(req *http.Request) (*http.Response, err
 }
 
 func (t *Transport) idleConnTimeout() time.Duration {
+	// to keep things backwards compatible, we use non-zero values of
+	// IdleConnTimeout, followed by using the IdleConnTimeout on the underlying
+	// http1 transport, followed by 0
+	if t.IdleConnTimeout != 0 {
+		return t.IdleConnTimeout
+	}
+
 	if t.t1 != nil {
 		return t.t1.IdleConnTimeout
 	}
+
 	return 0
 }
 

vendor/golang.org/x/sys/unix/mmap_nomremap.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build aix || darwin || dragonfly || freebsd || openbsd || solaris
+//go:build aix || darwin || dragonfly || freebsd || openbsd || solaris || zos
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_zos_s390x.go

@@ -1520,6 +1520,14 @@ func (m *mmapper) Munmap(data []byte) (err error) {
 	return nil
 }
 
+func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
+        return mapper.Mmap(fd, offset, length, prot, flags)
+}
+
+func Munmap(b []byte) (err error) {
+        return mapper.Munmap(b)
+}
+
 func Read(fd int, p []byte) (n int, err error) {
 	n, err = read(fd, p)
 	if raceenabled {

vendor/golang.org/x/sys/windows/syscall_windows.go

@@ -165,6 +165,7 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile Handle) (handle Handle, err error) [failretval==InvalidHandle] = CreateFileW
 //sys	CreateNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *SecurityAttributes) (handle Handle, err error)  [failretval==InvalidHandle] = CreateNamedPipeW
 //sys	ConnectNamedPipe(pipe Handle, overlapped *Overlapped) (err error)
+//sys	DisconnectNamedPipe(pipe Handle) (err error)
 //sys	GetNamedPipeInfo(pipe Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error)
 //sys	GetNamedPipeHandleState(pipe Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW
 //sys	SetNamedPipeHandleState(pipe Handle, state *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32) (err error) = SetNamedPipeHandleState
@@ -348,8 +349,19 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost
 //sys	GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32)
 //sys	SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error)
+//sys	ClearCommBreak(handle Handle) (err error)
+//sys	ClearCommError(handle Handle, lpErrors *uint32, lpStat *ComStat) (err error)
+//sys	EscapeCommFunction(handle Handle, dwFunc uint32) (err error)
+//sys	GetCommState(handle Handle, lpDCB *DCB) (err error)
+//sys	GetCommModemStatus(handle Handle, lpModemStat *uint32) (err error)
 //sys	GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
+//sys	PurgeComm(handle Handle, dwFlags uint32) (err error)
+//sys	SetCommBreak(handle Handle) (err error)
+//sys	SetCommMask(handle Handle, dwEvtMask uint32) (err error)
+//sys	SetCommState(handle Handle, lpDCB *DCB) (err error)
 //sys	SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
+//sys	SetupComm(handle Handle, dwInQueue uint32, dwOutQueue uint32) (err error)
+//sys	WaitCommEvent(handle Handle, lpEvtMask *uint32, lpOverlapped *Overlapped) (err error)
 //sys	GetActiveProcessorCount(groupNumber uint16) (ret uint32)
 //sys	GetMaximumProcessorCount(groupNumber uint16) (ret uint32)
 //sys	EnumWindows(enumFunc uintptr, param unsafe.Pointer) (err error) = user32.EnumWindows
@@ -1834,3 +1846,73 @@ func ResizePseudoConsole(pconsole Handle, size Coord) error {
 	// accept arguments that can be casted to uintptr, and Coord can't.
 	return resizePseudoConsole(pconsole, *((*uint32)(unsafe.Pointer(&size))))
 }
+
+// DCB constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/ns-winbase-dcb.
+const (
+	CBR_110    = 110
+	CBR_300    = 300
+	CBR_600    = 600
+	CBR_1200   = 1200
+	CBR_2400   = 2400
+	CBR_4800   = 4800
+	CBR_9600   = 9600
+	CBR_14400  = 14400
+	CBR_19200  = 19200
+	CBR_38400  = 38400
+	CBR_57600  = 57600
+	CBR_115200 = 115200
+	CBR_128000 = 128000
+	CBR_256000 = 256000
+
+	DTR_CONTROL_DISABLE   = 0x00000000
+	DTR_CONTROL_ENABLE    = 0x00000010
+	DTR_CONTROL_HANDSHAKE = 0x00000020
+
+	RTS_CONTROL_DISABLE   = 0x00000000
+	RTS_CONTROL_ENABLE    = 0x00001000
+	RTS_CONTROL_HANDSHAKE = 0x00002000
+	RTS_CONTROL_TOGGLE    = 0x00003000
+
+	NOPARITY    = 0
+	ODDPARITY   = 1
+	EVENPARITY  = 2
+	MARKPARITY  = 3
+	SPACEPARITY = 4
+
+	ONESTOPBIT   = 0
+	ONE5STOPBITS = 1
+	TWOSTOPBITS  = 2
+)
+
+// EscapeCommFunction constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-escapecommfunction.
+const (
+	SETXOFF  = 1
+	SETXON   = 2
+	SETRTS   = 3
+	CLRRTS   = 4
+	SETDTR   = 5
+	CLRDTR   = 6
+	SETBREAK = 8
+	CLRBREAK = 9
+)
+
+// PurgeComm constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-purgecomm.
+const (
+	PURGE_TXABORT = 0x0001
+	PURGE_RXABORT = 0x0002
+	PURGE_TXCLEAR = 0x0004
+	PURGE_RXCLEAR = 0x0008
+)
+
+// SetCommMask constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-setcommmask.
+const (
+	EV_RXCHAR  = 0x0001
+	EV_RXFLAG  = 0x0002
+	EV_TXEMPTY = 0x0004
+	EV_CTS     = 0x0008
+	EV_DSR     = 0x0010
+	EV_RLSD    = 0x0020
+	EV_BREAK   = 0x0040
+	EV_ERR     = 0x0080
+	EV_RING    = 0x0100
+)

vendor/golang.org/x/sys/windows/types_windows.go

@@ -3380,3 +3380,27 @@ type BLOB struct {
 	Size     uint32
 	BlobData *byte
 }
+
+type ComStat struct {
+	Flags    uint32
+	CBInQue  uint32
+	CBOutQue uint32
+}
+
+type DCB struct {
+	DCBlength  uint32
+	BaudRate   uint32
+	Flags      uint32
+	wReserved  uint16
+	XonLim     uint16
+	XoffLim    uint16
+	ByteSize   uint8
+	Parity     uint8
+	StopBits   uint8
+	XonChar    byte
+	XoffChar   byte
+	ErrorChar  byte
+	EofChar    byte
+	EvtChar    byte
+	wReserved1 uint16
+}

vendor/golang.org/x/sys/windows/zsyscall_windows.go

@@ -188,6 +188,8 @@ var (
 	procAssignProcessToJobObject                             = modkernel32.NewProc("AssignProcessToJobObject")
 	procCancelIo                                             = modkernel32.NewProc("CancelIo")
 	procCancelIoEx                                           = modkernel32.NewProc("CancelIoEx")
+	procClearCommBreak                                       = modkernel32.NewProc("ClearCommBreak")
+	procClearCommError                                       = modkernel32.NewProc("ClearCommError")
 	procCloseHandle                                          = modkernel32.NewProc("CloseHandle")
 	procClosePseudoConsole                                   = modkernel32.NewProc("ClosePseudoConsole")
 	procConnectNamedPipe                                     = modkernel32.NewProc("ConnectNamedPipe")
@@ -212,7 +214,9 @@ var (
 	procDeleteProcThreadAttributeList                        = modkernel32.NewProc("DeleteProcThreadAttributeList")
 	procDeleteVolumeMountPointW                              = modkernel32.NewProc("DeleteVolumeMountPointW")
 	procDeviceIoControl                                      = modkernel32.NewProc("DeviceIoControl")
+	procDisconnectNamedPipe                                  = modkernel32.NewProc("DisconnectNamedPipe")
 	procDuplicateHandle                                      = modkernel32.NewProc("DuplicateHandle")
+	procEscapeCommFunction                                   = modkernel32.NewProc("EscapeCommFunction")
 	procExitProcess                                          = modkernel32.NewProc("ExitProcess")
 	procExpandEnvironmentStringsW                            = modkernel32.NewProc("ExpandEnvironmentStringsW")
 	procFindClose                                            = modkernel32.NewProc("FindClose")
@@ -236,6 +240,8 @@ var (
 	procGenerateConsoleCtrlEvent                             = modkernel32.NewProc("GenerateConsoleCtrlEvent")
 	procGetACP                                               = modkernel32.NewProc("GetACP")
 	procGetActiveProcessorCount                              = modkernel32.NewProc("GetActiveProcessorCount")
+	procGetCommModemStatus                                   = modkernel32.NewProc("GetCommModemStatus")
+	procGetCommState                                         = modkernel32.NewProc("GetCommState")
 	procGetCommTimeouts                                      = modkernel32.NewProc("GetCommTimeouts")
 	procGetCommandLineW                                      = modkernel32.NewProc("GetCommandLineW")
 	procGetComputerNameExW                                   = modkernel32.NewProc("GetComputerNameExW")
@@ -322,6 +328,7 @@ var (
 	procProcess32NextW                                       = modkernel32.NewProc("Process32NextW")
 	procProcessIdToSessionId                                 = modkernel32.NewProc("ProcessIdToSessionId")
 	procPulseEvent                                           = modkernel32.NewProc("PulseEvent")
+	procPurgeComm                                            = modkernel32.NewProc("PurgeComm")
 	procQueryDosDeviceW                                      = modkernel32.NewProc("QueryDosDeviceW")
 	procQueryFullProcessImageNameW                           = modkernel32.NewProc("QueryFullProcessImageNameW")
 	procQueryInformationJobObject                            = modkernel32.NewProc("QueryInformationJobObject")
@@ -335,6 +342,9 @@ var (
 	procResetEvent                                           = modkernel32.NewProc("ResetEvent")
 	procResizePseudoConsole                                  = modkernel32.NewProc("ResizePseudoConsole")
 	procResumeThread                                         = modkernel32.NewProc("ResumeThread")
+	procSetCommBreak                                         = modkernel32.NewProc("SetCommBreak")
+	procSetCommMask                                          = modkernel32.NewProc("SetCommMask")
+	procSetCommState                                         = modkernel32.NewProc("SetCommState")
 	procSetCommTimeouts                                      = modkernel32.NewProc("SetCommTimeouts")
 	procSetConsoleCursorPosition                             = modkernel32.NewProc("SetConsoleCursorPosition")
 	procSetConsoleMode                                       = modkernel32.NewProc("SetConsoleMode")
@@ -342,7 +352,6 @@ var (
 	procSetDefaultDllDirectories                             = modkernel32.NewProc("SetDefaultDllDirectories")
 	procSetDllDirectoryW                                     = modkernel32.NewProc("SetDllDirectoryW")
 	procSetEndOfFile                                         = modkernel32.NewProc("SetEndOfFile")
-	procSetFileValidData                                     = modkernel32.NewProc("SetFileValidData")
 	procSetEnvironmentVariableW                              = modkernel32.NewProc("SetEnvironmentVariableW")
 	procSetErrorMode                                         = modkernel32.NewProc("SetErrorMode")
 	procSetEvent                                             = modkernel32.NewProc("SetEvent")
@@ -351,6 +360,7 @@ var (
 	procSetFileInformationByHandle                           = modkernel32.NewProc("SetFileInformationByHandle")
 	procSetFilePointer                                       = modkernel32.NewProc("SetFilePointer")
 	procSetFileTime                                          = modkernel32.NewProc("SetFileTime")
+	procSetFileValidData                                     = modkernel32.NewProc("SetFileValidData")
 	procSetHandleInformation                                 = modkernel32.NewProc("SetHandleInformation")
 	procSetInformationJobObject                              = modkernel32.NewProc("SetInformationJobObject")
 	procSetNamedPipeHandleState                              = modkernel32.NewProc("SetNamedPipeHandleState")
@@ -361,6 +371,7 @@ var (
 	procSetStdHandle                                         = modkernel32.NewProc("SetStdHandle")
 	procSetVolumeLabelW                                      = modkernel32.NewProc("SetVolumeLabelW")
 	procSetVolumeMountPointW                                 = modkernel32.NewProc("SetVolumeMountPointW")
+	procSetupComm                                            = modkernel32.NewProc("SetupComm")
 	procSizeofResource                                       = modkernel32.NewProc("SizeofResource")
 	procSleepEx                                              = modkernel32.NewProc("SleepEx")
 	procTerminateJobObject                                   = modkernel32.NewProc("TerminateJobObject")
@@ -379,6 +390,7 @@ var (
 	procVirtualQueryEx                                       = modkernel32.NewProc("VirtualQueryEx")
 	procVirtualUnlock                                        = modkernel32.NewProc("VirtualUnlock")
 	procWTSGetActiveConsoleSessionId                         = modkernel32.NewProc("WTSGetActiveConsoleSessionId")
+	procWaitCommEvent                                        = modkernel32.NewProc("WaitCommEvent")
 	procWaitForMultipleObjects                               = modkernel32.NewProc("WaitForMultipleObjects")
 	procWaitForSingleObject                                  = modkernel32.NewProc("WaitForSingleObject")
 	procWriteConsoleW                                        = modkernel32.NewProc("WriteConsoleW")
@@ -1641,6 +1653,22 @@ func CancelIoEx(s Handle, o *Overlapped) (err error) {
 	return
 }
 
+func ClearCommBreak(handle Handle) (err error) {
+	r1, _, e1 := syscall.Syscall(procClearCommBreak.Addr(), 1, uintptr(handle), 0, 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+func ClearCommError(handle Handle, lpErrors *uint32, lpStat *ComStat) (err error) {
+	r1, _, e1 := syscall.Syscall(procClearCommError.Addr(), 3, uintptr(handle), uintptr(unsafe.Pointer(lpErrors)), uintptr(unsafe.Pointer(lpStat)))
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func CloseHandle(handle Handle) (err error) {
 	r1, _, e1 := syscall.Syscall(procCloseHandle.Addr(), 1, uintptr(handle), 0, 0)
 	if r1 == 0 {
@@ -1845,6 +1873,14 @@ func DeviceIoControl(handle Handle, ioControlCode uint32, inBuffer *byte, inBuff
 	return
 }
 
+func DisconnectNamedPipe(pipe Handle) (err error) {
+	r1, _, e1 := syscall.Syscall(procDisconnectNamedPipe.Addr(), 1, uintptr(pipe), 0, 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error) {
 	var _p0 uint32
 	if bInheritHandle {
@@ -1857,6 +1893,14 @@ func DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetP
 	return
 }
 
+func EscapeCommFunction(handle Handle, dwFunc uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procEscapeCommFunction.Addr(), 2, uintptr(handle), uintptr(dwFunc), 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func ExitProcess(exitcode uint32) {
 	syscall.Syscall(procExitProcess.Addr(), 1, uintptr(exitcode), 0, 0)
 	return
@@ -2058,6 +2102,22 @@ func GetActiveProcessorCount(groupNumber uint16) (ret uint32) {
 	return
 }
 
+func GetCommModemStatus(handle Handle, lpModemStat *uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procGetCommModemStatus.Addr(), 2, uintptr(handle), uintptr(unsafe.Pointer(lpModemStat)), 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+func GetCommState(handle Handle, lpDCB *DCB) (err error) {
+	r1, _, e1 := syscall.Syscall(procGetCommState.Addr(), 2, uintptr(handle), uintptr(unsafe.Pointer(lpDCB)), 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) {
 	r1, _, e1 := syscall.Syscall(procGetCommTimeouts.Addr(), 2, uintptr(handle), uintptr(unsafe.Pointer(timeouts)), 0)
 	if r1 == 0 {
@@ -2810,6 +2870,14 @@ func PulseEvent(event Handle) (err error) {
 	return
 }
 
+func PurgeComm(handle Handle, dwFlags uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procPurgeComm.Addr(), 2, uintptr(handle), uintptr(dwFlags), 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) {
 	r0, _, e1 := syscall.Syscall(procQueryDosDeviceW.Addr(), 3, uintptr(unsafe.Pointer(deviceName)), uintptr(unsafe.Pointer(targetPath)), uintptr(max))
 	n = uint32(r0)
@@ -2924,6 +2992,30 @@ func ResumeThread(thread Handle) (ret uint32, err error) {
 	return
 }
 
+func SetCommBreak(handle Handle) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetCommBreak.Addr(), 1, uintptr(handle), 0, 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+func SetCommMask(handle Handle, dwEvtMask uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetCommMask.Addr(), 2, uintptr(handle), uintptr(dwEvtMask), 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+func SetCommState(handle Handle, lpDCB *DCB) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetCommState.Addr(), 2, uintptr(handle), uintptr(unsafe.Pointer(lpDCB)), 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) {
 	r1, _, e1 := syscall.Syscall(procSetCommTimeouts.Addr(), 2, uintptr(handle), uintptr(unsafe.Pointer(timeouts)), 0)
 	if r1 == 0 {
@@ -2989,14 +3081,6 @@ func SetEndOfFile(handle Handle) (err error) {
 	return
 }
 
-func SetFileValidData(handle Handle, validDataLength int64) (err error) {
-	r1, _, e1 := syscall.Syscall(procSetFileValidData.Addr(), 2, uintptr(handle), uintptr(validDataLength), 0)
-	if r1 == 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
 func SetEnvironmentVariable(name *uint16, value *uint16) (err error) {
 	r1, _, e1 := syscall.Syscall(procSetEnvironmentVariableW.Addr(), 2, uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(value)), 0)
 	if r1 == 0 {
@@ -3060,6 +3144,14 @@ func SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetim
 	return
 }
 
+func SetFileValidData(handle Handle, validDataLength int64) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetFileValidData.Addr(), 2, uintptr(handle), uintptr(validDataLength), 0)
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func SetHandleInformation(handle Handle, mask uint32, flags uint32) (err error) {
 	r1, _, e1 := syscall.Syscall(procSetHandleInformation.Addr(), 3, uintptr(handle), uintptr(mask), uintptr(flags))
 	if r1 == 0 {
@@ -3145,6 +3237,14 @@ func SetVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16) (err erro
 	return
 }
 
+func SetupComm(handle Handle, dwInQueue uint32, dwOutQueue uint32) (err error) {
+	r1, _, e1 := syscall.Syscall(procSetupComm.Addr(), 3, uintptr(handle), uintptr(dwInQueue), uintptr(dwOutQueue))
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func SizeofResource(module Handle, resInfo Handle) (size uint32, err error) {
 	r0, _, e1 := syscall.Syscall(procSizeofResource.Addr(), 2, uintptr(module), uintptr(resInfo), 0)
 	size = uint32(r0)
@@ -3291,6 +3391,14 @@ func WTSGetActiveConsoleSessionId() (sessionID uint32) {
 	return
 }
 
+func WaitCommEvent(handle Handle, lpEvtMask *uint32, lpOverlapped *Overlapped) (err error) {
+	r1, _, e1 := syscall.Syscall(procWaitCommEvent.Addr(), 3, uintptr(handle), uintptr(unsafe.Pointer(lpEvtMask)), uintptr(unsafe.Pointer(lpOverlapped)))
+	if r1 == 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
 func waitForMultipleObjects(count uint32, handles uintptr, waitAll bool, waitMilliseconds uint32) (event uint32, err error) {
 	var _p0 uint32
 	if waitAll {

vendor/modules.txt

@@ -711,7 +711,7 @@ go.uber.org/zap/internal/pool
 go.uber.org/zap/internal/stacktrace
 go.uber.org/zap/zapcore
 go.uber.org/zap/zapgrpc
-# golang.org/x/crypto v0.21.0
+# golang.org/x/crypto v0.22.0
 ## explicit; go 1.18
 golang.org/x/crypto/argon2
 golang.org/x/crypto/blake2b
@@ -737,7 +737,7 @@ golang.org/x/crypto/ssh/internal/bcrypt_pbkdf
 golang.org/x/exp/constraints
 golang.org/x/exp/maps
 golang.org/x/exp/slices
-# golang.org/x/net v0.22.0
+# golang.org/x/net v0.24.0
 ## explicit; go 1.18
 golang.org/x/net/context
 golang.org/x/net/html
@@ -759,14 +759,14 @@ golang.org/x/oauth2/internal
 # golang.org/x/sync v0.6.0
 ## explicit; go 1.18
 golang.org/x/sync/singleflight
-# golang.org/x/sys v0.18.0
+# golang.org/x/sys v0.19.0
 ## explicit; go 1.18
 golang.org/x/sys/cpu
 golang.org/x/sys/plan9
 golang.org/x/sys/unix
 golang.org/x/sys/windows
 golang.org/x/sys/windows/registry
-# golang.org/x/term v0.18.0
+# golang.org/x/term v0.19.0
 ## explicit; go 1.18
 golang.org/x/term
 # golang.org/x/text v0.14.0