Update go modules for 1.15

223 files changed, 2731 insertions, 4116 deletions

diff --git a/vendor/golang.org/x/net/bpf/constants.go b/vendor/golang.org/x/net/bpf/constants.go
index b89ca35..12f3ee8 100644
--- a/vendor/golang.org/x/net/bpf/constants.go
+++ b/vendor/golang.org/x/net/bpf/constants.go
@@ -38,6 +38,7 @@ const (
 type JumpTest uint16
 
 // Supported operators for conditional jumps.
+// K can be RegX for JumpIfX
 const (
 	// K == A
 	JumpEqual JumpTest = iota
@@ -134,12 +135,9 @@ const (
 	opMaskLoadDest  = 0x01
 	opMaskLoadWidth = 0x18
 	opMaskLoadMode  = 0xe0
-	// opClsALU
-	opMaskOperandSrc = 0x08
-	opMaskOperator   = 0xf0
-	// opClsJump
-	opMaskJumpConst = 0x0f
-	opMaskJumpCond  = 0xf0
+	// opClsALU & opClsJump
+	opMaskOperand  = 0x08
+	opMaskOperator = 0xf0
 )
 
 const (
@@ -192,15 +190,21 @@ const (
 	opLoadWidth1
 )
 
-// Operator defined by ALUOp*
+// Operand for ALU and Jump instructions
+type opOperand uint16
 
+// Supported operand sources.
 const (
-	opALUSrcConstant uint16 = iota << 3
-	opALUSrcX
+	opOperandConstant opOperand = iota << 3
+	opOperandX
 )
 
+// An jumpOp is a conditional jump condition.
+type jumpOp uint16
+
+// Supported jump conditions.
 const (
-	opJumpAlways = iota << 4
+	opJumpAlways jumpOp = iota << 4
 	opJumpEqual
 	opJumpGT
 	opJumpGE
diff --git a/vendor/golang.org/x/net/bpf/instructions.go b/vendor/golang.org/x/net/bpf/instructions.go
index f9dc0e8..3cffcaa 100644
--- a/vendor/golang.org/x/net/bpf/instructions.go
+++ b/vendor/golang.org/x/net/bpf/instructions.go
@@ -89,10 +89,14 @@ func (ri RawInstruction) Disassemble() Instruction {
 	case opClsALU:
 		switch op := ALUOp(ri.Op & opMaskOperator); op {
 		case ALUOpAdd, ALUOpSub, ALUOpMul, ALUOpDiv, ALUOpOr, ALUOpAnd, ALUOpShiftLeft, ALUOpShiftRight, ALUOpMod, ALUOpXor:
-			if ri.Op&opMaskOperandSrc != 0 {
+			switch operand := opOperand(ri.Op & opMaskOperand); operand {
+			case opOperandX:
 				return ALUOpX{Op: op}
+			case opOperandConstant:
+				return ALUOpConstant{Op: op, Val: ri.K}
+			default:
+				return ri
 			}
-			return ALUOpConstant{Op: op, Val: ri.K}
 		case aluOpNeg:
 			return NegateA{}
 		default:
@@ -100,63 +104,18 @@ func (ri RawInstruction) Disassemble() Instruction {
 		}
 
 	case opClsJump:
-		if ri.Op&opMaskJumpConst != opClsJump {
-			return ri
-		}
-		switch ri.Op & opMaskJumpCond {
+		switch op := jumpOp(ri.Op & opMaskOperator); op {
 		case opJumpAlways:
 			return Jump{Skip: ri.K}
-		case opJumpEqual:
-			if ri.Jt == 0 {
-				return JumpIf{
-					Cond:      JumpNotEqual,
-					Val:       ri.K,
-					SkipTrue:  ri.Jf,
-					SkipFalse: 0,
-				}
-			}
-			return JumpIf{
-				Cond:      JumpEqual,
-				Val:       ri.K,
-				SkipTrue:  ri.Jt,
-				SkipFalse: ri.Jf,
-			}
-		case opJumpGT:
-			if ri.Jt == 0 {
-				return JumpIf{
-					Cond:      JumpLessOrEqual,
-					Val:       ri.K,
-					SkipTrue:  ri.Jf,
-					SkipFalse: 0,
-				}
-			}
-			return JumpIf{
-				Cond:      JumpGreaterThan,
-				Val:       ri.K,
-				SkipTrue:  ri.Jt,
-				SkipFalse: ri.Jf,
-			}
-		case opJumpGE:
-			if ri.Jt == 0 {
-				return JumpIf{
-					Cond:      JumpLessThan,
-					Val:       ri.K,
-					SkipTrue:  ri.Jf,
-					SkipFalse: 0,
-				}
-			}
-			return JumpIf{
-				Cond:      JumpGreaterOrEqual,
-				Val:       ri.K,
-				SkipTrue:  ri.Jt,
-				SkipFalse: ri.Jf,
-			}
-		case opJumpSet:
-			return JumpIf{
-				Cond:      JumpBitsSet,
-				Val:       ri.K,
-				SkipTrue:  ri.Jt,
-				SkipFalse: ri.Jf,
+		case opJumpEqual, opJumpGT, opJumpGE, opJumpSet:
+			cond, skipTrue, skipFalse := jumpOpToTest(op, ri.Jt, ri.Jf)
+			switch operand := opOperand(ri.Op & opMaskOperand); operand {
+			case opOperandX:
+				return JumpIfX{Cond: cond, SkipTrue: skipTrue, SkipFalse: skipFalse}
+			case opOperandConstant:
+				return JumpIf{Cond: cond, Val: ri.K, SkipTrue: skipTrue, SkipFalse: skipFalse}
+			default:
+				return ri
 			}
 		default:
 			return ri
@@ -187,6 +146,41 @@ func (ri RawInstruction) Disassemble() Instruction {
 	}
 }
 
+func jumpOpToTest(op jumpOp, skipTrue uint8, skipFalse uint8) (JumpTest, uint8, uint8) {
+	var test JumpTest
+
+	// Decode "fake" jump conditions that don't appear in machine code
+	// Ensures the Assemble -> Disassemble stage recreates the same instructions
+	// See https://github.com/golang/go/issues/18470
+	if skipTrue == 0 {
+		switch op {
+		case opJumpEqual:
+			test = JumpNotEqual
+		case opJumpGT:
+			test = JumpLessOrEqual
+		case opJumpGE:
+			test = JumpLessThan
+		case opJumpSet:
+			test = JumpBitsNotSet
+		}
+
+		return test, skipFalse, 0
+	}
+
+	switch op {
+	case opJumpEqual:
+		test = JumpEqual
+	case opJumpGT:
+		test = JumpGreaterThan
+	case opJumpGE:
+		test = JumpGreaterOrEqual
+	case opJumpSet:
+		test = JumpBitsSet
+	}
+
+	return test, skipTrue, skipFalse
+}
+
 // LoadConstant loads Val into register Dst.
 type LoadConstant struct {
 	Dst Register
@@ -413,7 +407,7 @@ type ALUOpConstant struct {
 // Assemble implements the Instruction Assemble method.
 func (a ALUOpConstant) Assemble() (RawInstruction, error) {
 	return RawInstruction{
-		Op: opClsALU | opALUSrcConstant | uint16(a.Op),
+		Op: opClsALU | uint16(opOperandConstant) | uint16(a.Op),
 		K:  a.Val,
 	}, nil
 }
@@ -454,7 +448,7 @@ type ALUOpX struct {
 // Assemble implements the Instruction Assemble method.
 func (a ALUOpX) Assemble() (RawInstruction, error) {
 	return RawInstruction{
-		Op: opClsALU | opALUSrcX | uint16(a.Op),
+		Op: opClsALU | uint16(opOperandX) | uint16(a.Op),
 	}, nil
 }
 
@@ -509,7 +503,7 @@ type Jump struct {
 // Assemble implements the Instruction Assemble method.
 func (a Jump) Assemble() (RawInstruction, error) {
 	return RawInstruction{
-		Op: opClsJump | opJumpAlways,
+		Op: opClsJump | uint16(opJumpAlways),
 		K:  a.Skip,
 	}, nil
 }
@@ -530,11 +524,39 @@ type JumpIf struct {
 
 // Assemble implements the Instruction Assemble method.
 func (a JumpIf) Assemble() (RawInstruction, error) {
+	return jumpToRaw(a.Cond, opOperandConstant, a.Val, a.SkipTrue, a.SkipFalse)
+}
+
+// String returns the instruction in assembler notation.
+func (a JumpIf) String() string {
+	return jumpToString(a.Cond, fmt.Sprintf("#%d", a.Val), a.SkipTrue, a.SkipFalse)
+}
+
+// JumpIfX skips the following Skip instructions in the program if A
+// <Cond> X is true.
+type JumpIfX struct {
+	Cond      JumpTest
+	SkipTrue  uint8
+	SkipFalse uint8
+}
+
+// Assemble implements the Instruction Assemble method.
+func (a JumpIfX) Assemble() (RawInstruction, error) {
+	return jumpToRaw(a.Cond, opOperandX, 0, a.SkipTrue, a.SkipFalse)
+}
+
+// String returns the instruction in assembler notation.
+func (a JumpIfX) String() string {
+	return jumpToString(a.Cond, "x", a.SkipTrue, a.SkipFalse)
+}
+
+// jumpToRaw assembles a jump instruction into a RawInstruction
+func jumpToRaw(test JumpTest, operand opOperand, k uint32, skipTrue, skipFalse uint8) (RawInstruction, error) {
 	var (
-		cond uint16
+		cond jumpOp
 		flip bool
 	)
-	switch a.Cond {
+	switch test {
 	case JumpEqual:
 		cond = opJumpEqual
 	case JumpNotEqual:
@@ -552,63 +574,63 @@ func (a JumpIf) Assemble() (RawInstruction, error) {
 	case JumpBitsNotSet:
 		cond, flip = opJumpSet, true
 	default:
-		return RawInstruction{}, fmt.Errorf("unknown JumpTest %v", a.Cond)
+		return RawInstruction{}, fmt.Errorf("unknown JumpTest %v", test)
 	}
-	jt, jf := a.SkipTrue, a.SkipFalse
+	jt, jf := skipTrue, skipFalse
 	if flip {
 		jt, jf = jf, jt
 	}
 	return RawInstruction{
-		Op: opClsJump | cond,
+		Op: opClsJump | uint16(cond) | uint16(operand),
 		Jt: jt,
 		Jf: jf,
-		K:  a.Val,
+		K:  k,
 	}, nil
 }
 
-// String returns the instruction in assembler notation.
-func (a JumpIf) String() string {
-	switch a.Cond {
+// jumpToString converts a jump instruction to assembler notation
+func jumpToString(cond JumpTest, operand string, skipTrue, skipFalse uint8) string {
+	switch cond {
 	// K == A
 	case JumpEqual:
-		return conditionalJump(a, "jeq", "jneq")
+		return conditionalJump(operand, skipTrue, skipFalse, "jeq", "jneq")
 	// K != A
 	case JumpNotEqual:
-		return fmt.Sprintf("jneq #%d,%d", a.Val, a.SkipTrue)
+		return fmt.Sprintf("jneq %s,%d", operand, skipTrue)
 	// K > A
 	case JumpGreaterThan:
-		return conditionalJump(a, "jgt", "jle")
+		return conditionalJump(operand, skipTrue, skipFalse, "jgt", "jle")
 	// K < A
 	case JumpLessThan:
-		return fmt.Sprintf("jlt #%d,%d", a.Val, a.SkipTrue)
+		return fmt.Sprintf("jlt %s,%d", operand, skipTrue)
 	// K >= A
 	case JumpGreaterOrEqual:
-		return conditionalJump(a, "jge", "jlt")
+		return conditionalJump(operand, skipTrue, skipFalse, "jge", "jlt")
 	// K <= A
 	case JumpLessOrEqual:
-		return fmt.Sprintf("jle #%d,%d", a.Val, a.SkipTrue)
+		return fmt.Sprintf("jle %s,%d", operand, skipTrue)
 	// K & A != 0
 	case JumpBitsSet:
-		if a.SkipFalse > 0 {
-			return fmt.Sprintf("jset #%d,%d,%d", a.Val, a.SkipTrue, a.SkipFalse)
+		if skipFalse > 0 {
+			return fmt.Sprintf("jset %s,%d,%d", operand, skipTrue, skipFalse)
 		}
-		return fmt.Sprintf("jset #%d,%d", a.Val, a.SkipTrue)
+		return fmt.Sprintf("jset %s,%d", operand, skipTrue)
 	// K & A == 0, there is no assembler instruction for JumpBitNotSet, use JumpBitSet and invert skips
 	case JumpBitsNotSet:
-		return JumpIf{Cond: JumpBitsSet, SkipTrue: a.SkipFalse, SkipFalse: a.SkipTrue, Val: a.Val}.String()
+		return jumpToString(JumpBitsSet, operand, skipFalse, skipTrue)
 	default:
-		return fmt.Sprintf("unknown instruction: %#v", a)
+		return fmt.Sprintf("unknown JumpTest %#v", cond)
 	}
 }
 
-func conditionalJump(inst JumpIf, positiveJump, negativeJump string) string {
-	if inst.SkipTrue > 0 {
-		if inst.SkipFalse > 0 {
-			return fmt.Sprintf("%s #%d,%d,%d", positiveJump, inst.Val, inst.SkipTrue, inst.SkipFalse)
+func conditionalJump(operand string, skipTrue, skipFalse uint8, positiveJump, negativeJump string) string {
+	if skipTrue > 0 {
+		if skipFalse > 0 {
+			return fmt.Sprintf("%s %s,%d,%d", positiveJump, operand, skipTrue, skipFalse)
 		}
-		return fmt.Sprintf("%s #%d,%d", positiveJump, inst.Val, inst.SkipTrue)
+		return fmt.Sprintf("%s %s,%d", positiveJump, operand, skipTrue)
 	}
-	return fmt.Sprintf("%s #%d,%d", negativeJump, inst.Val, inst.SkipFalse)
+	return fmt.Sprintf("%s %s,%d", negativeJump, operand, skipFalse)
 }
 
 // RetA exits the BPF program, returning the value of register A.
diff --git a/vendor/golang.org/x/net/bpf/vm.go b/vendor/golang.org/x/net/bpf/vm.go
index 4c656f1..73f57f1 100644
--- a/vendor/golang.org/x/net/bpf/vm.go
+++ b/vendor/golang.org/x/net/bpf/vm.go
@@ -35,6 +35,13 @@ func NewVM(filter []Instruction) (*VM, error) {
 			if check <= int(ins.SkipFalse) {
 				return nil, fmt.Errorf("cannot jump %d instructions in false case; jumping past program bounds", ins.SkipFalse)
 			}
+		case JumpIfX:
+			if check <= int(ins.SkipTrue) {
+				return nil, fmt.Errorf("cannot jump %d instructions in true case; jumping past program bounds", ins.SkipTrue)
+			}
+			if check <= int(ins.SkipFalse) {
+				return nil, fmt.Errorf("cannot jump %d instructions in false case; jumping past program bounds", ins.SkipFalse)
+			}
 		// Check for division or modulus by zero
 		case ALUOpConstant:
 			if ins.Val != 0 {
@@ -109,6 +116,9 @@ func (v *VM) Run(in []byte) (int, error) {
 		case JumpIf:
 			jump := jumpIf(ins, regA)
 			i += jump
+		case JumpIfX:
+			jump := jumpIfX(ins, regA, regX)
+			i += jump
 		case LoadAbsolute:
 			regA, ok = loadAbsolute(ins, in)
 		case LoadConstant:
diff --git a/vendor/golang.org/x/net/bpf/vm_instructions.go b/vendor/golang.org/x/net/bpf/vm_instructions.go
index 516f946..cf8947c 100644
--- a/vendor/golang.org/x/net/bpf/vm_instructions.go
+++ b/vendor/golang.org/x/net/bpf/vm_instructions.go
@@ -55,34 +55,41 @@ func aluOpCommon(op ALUOp, regA uint32, value uint32) uint32 {
 	}
 }
 
-func jumpIf(ins JumpIf, value uint32) int {
+func jumpIf(ins JumpIf, regA uint32) int {
+	return jumpIfCommon(ins.Cond, ins.SkipTrue, ins.SkipFalse, regA, ins.Val)
+}
+
+func jumpIfX(ins JumpIfX, regA uint32, regX uint32) int {
+	return jumpIfCommon(ins.Cond, ins.SkipTrue, ins.SkipFalse, regA, regX)
+}
+
+func jumpIfCommon(cond JumpTest, skipTrue, skipFalse uint8, regA uint32, value uint32) int {
 	var ok bool
-	inV := uint32(ins.Val)
 
-	switch ins.Cond {
+	switch cond {
 	case JumpEqual:
-		ok = value == inV
+		ok = regA == value
 	case JumpNotEqual:
-		ok = value != inV
+		ok = regA != value
 	case JumpGreaterThan:
-		ok = value > inV
+		ok = regA > value
 	case JumpLessThan:
-		ok = value < inV
+		ok = regA < value
 	case JumpGreaterOrEqual:
-		ok = value >= inV
+		ok = regA >= value
 	case JumpLessOrEqual:
-		ok = value <= inV
+		ok = regA <= value
 	case JumpBitsSet:
-		ok = (value & inV) != 0
+		ok = (regA & value) != 0
 	case JumpBitsNotSet:
-		ok = (value & inV) == 0
+		ok = (regA & value) == 0
 	}
 
 	if ok {
-		return int(ins.SkipTrue)
+		return int(skipTrue)
 	}
 
-	return int(ins.SkipFalse)
+	return int(skipFalse)
 }
 
 func loadAbsolute(ins LoadAbsolute, in []byte) (uint32, bool) {
@@ -122,7 +129,8 @@ func loadIndirect(ins LoadIndirect, in []byte, regX uint32) (uint32, bool) {
 func loadMemShift(ins LoadMemShift, in []byte) (uint32, bool) {
 	offset := int(ins.Off)
 
-	if !inBounds(len(in), offset, 0) {
+	// Size of LoadMemShift is always 1 byte
+	if !inBounds(len(in), offset, 1) {
 		return 0, false
 	}
 
diff --git a/vendor/golang.org/x/net/internal/iana/const.go b/vendor/golang.org/x/net/internal/iana/const.go
index c9df24d..cea712f 100644
--- a/vendor/golang.org/x/net/internal/iana/const.go
+++ b/vendor/golang.org/x/net/internal/iana/const.go
@@ -1,44 +1,40 @@
 // go generate gen.go
-// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
+// Code generated by the command above; DO NOT EDIT.
 
 // Package iana provides protocol number resources managed by the Internet Assigned Numbers Authority (IANA).
 package iana // import "golang.org/x/net/internal/iana"
 
-// Differentiated Services Field Codepoints (DSCP), Updated: 2017-05-12
+// Differentiated Services Field Codepoints (DSCP), Updated: 2018-05-04
 const (
-	DiffServCS0        = 0x0  // CS0
-	DiffServCS1        = 0x20 // CS1
-	DiffServCS2        = 0x40 // CS2
-	DiffServCS3        = 0x60 // CS3
-	DiffServCS4        = 0x80 // CS4
-	DiffServCS5        = 0xa0 // CS5
-	DiffServCS6        = 0xc0 // CS6
-	DiffServCS7        = 0xe0 // CS7
-	DiffServAF11       = 0x28 // AF11
-	DiffServAF12       = 0x30 // AF12
-	DiffServAF13       = 0x38 // AF13
-	DiffServAF21       = 0x48 // AF21
-	DiffServAF22       = 0x50 // AF22
-	DiffServAF23       = 0x58 // AF23
-	DiffServAF31       = 0x68 // AF31
-	DiffServAF32       = 0x70 // AF32
-	DiffServAF33       = 0x78 // AF33
-	DiffServAF41       = 0x88 // AF41
-	DiffServAF42       = 0x90 // AF42
-	DiffServAF43       = 0x98 // AF43
-	DiffServEF         = 0xb8 // EF
-	DiffServVOICEADMIT = 0xb0 // VOICE-ADMIT
+	DiffServCS0           = 0x00 // CS0
+	DiffServCS1           = 0x20 // CS1
+	DiffServCS2           = 0x40 // CS2
+	DiffServCS3           = 0x60 // CS3
+	DiffServCS4           = 0x80 // CS4
+	DiffServCS5           = 0xa0 // CS5
+	DiffServCS6           = 0xc0 // CS6
+	DiffServCS7           = 0xe0 // CS7
+	DiffServAF11          = 0x28 // AF11
+	DiffServAF12          = 0x30 // AF12
+	DiffServAF13          = 0x38 // AF13
+	DiffServAF21          = 0x48 // AF21
+	DiffServAF22          = 0x50 // AF22
+	DiffServAF23          = 0x58 // AF23
+	DiffServAF31          = 0x68 // AF31
+	DiffServAF32          = 0x70 // AF32
+	DiffServAF33          = 0x78 // AF33
+	DiffServAF41          = 0x88 // AF41
+	DiffServAF42          = 0x90 // AF42
+	DiffServAF43          = 0x98 // AF43
+	DiffServEF            = 0xb8 // EF
+	DiffServVOICEADMIT    = 0xb0 // VOICE-ADMIT
+	NotECNTransport       = 0x00 // Not-ECT (Not ECN-Capable Transport)
+	ECNTransport1         = 0x01 // ECT(1) (ECN-Capable Transport(1))
+	ECNTransport0         = 0x02 // ECT(0) (ECN-Capable Transport(0))
+	CongestionExperienced = 0x03 // CE (Congestion Experienced)
 )
 
-// IPv4 TOS Byte and IPv6 Traffic Class Octet, Updated: 2001-09-06
-const (
-	NotECNTransport       = 0x0 // Not-ECT (Not ECN-Capable Transport)
-	ECNTransport1         = 0x1 // ECT(1) (ECN-Capable Transport(1))
-	ECNTransport0         = 0x2 // ECT(0) (ECN-Capable Transport(0))
-	CongestionExperienced = 0x3 // CE (Congestion Experienced)
-)
-
-// Protocol Numbers, Updated: 2016-06-22
+// Protocol Numbers, Updated: 2017-10-13
 const (
 	ProtocolIP             = 0   // IPv4 encapsulation, pseudo protocol number
 	ProtocolHOPOPT         = 0   // IPv6 Hop-by-Hop Option
@@ -178,3 +174,50 @@ const (
 	ProtocolROHC           = 142 // Robust Header Compression
 	ProtocolReserved       = 255 // Reserved
 )
+
+// Address Family Numbers, Updated: 2018-04-02
+const (
+	AddrFamilyIPv4                          = 1     // IP (IP version 4)
+	AddrFamilyIPv6                          = 2     // IP6 (IP version 6)
+	AddrFamilyNSAP                          = 3     // NSAP
+	AddrFamilyHDLC                          = 4     // HDLC (8-bit multidrop)
+	AddrFamilyBBN1822                       = 5     // BBN 1822
+	AddrFamily802                           = 6     // 802 (includes all 802 media plus Ethernet "canonical format")
+	AddrFamilyE163                          = 7     // E.163
+	AddrFamilyE164                          = 8     // E.164 (SMDS, Frame Relay, ATM)
+	AddrFamilyF69                           = 9     // F.69 (Telex)
+	AddrFamilyX121                          = 10    // X.121 (X.25, Frame Relay)
+	AddrFamilyIPX                           = 11    // IPX
+	AddrFamilyAppletalk                     = 12    // Appletalk
+	AddrFamilyDecnetIV                      = 13    // Decnet IV
+	AddrFamilyBanyanVines                   = 14    // Banyan Vines
+	AddrFamilyE164withSubaddress            = 15    // E.164 with NSAP format subaddress
+	AddrFamilyDNS                           = 16    // DNS (Domain Name System)
+	AddrFamilyDistinguishedName             = 17    // Distinguished Name
+	AddrFamilyASNumber                      = 18    // AS Number
+	AddrFamilyXTPoverIPv4                   = 19    // XTP over IP version 4
+	AddrFamilyXTPoverIPv6                   = 20    // XTP over IP version 6
+	AddrFamilyXTPnativemodeXTP              = 21    // XTP native mode XTP
+	AddrFamilyFibreChannelWorldWidePortName = 22    // Fibre Channel World-Wide Port Name
+	AddrFamilyFibreChannelWorldWideNodeName = 23    // Fibre Channel World-Wide Node Name
+	AddrFamilyGWID                          = 24    // GWID
+	AddrFamilyL2VPN                         = 25    // AFI for L2VPN information
+	AddrFamilyMPLSTPSectionEndpointID       = 26    // MPLS-TP Section Endpoint Identifier
+	AddrFamilyMPLSTPLSPEndpointID           = 27    // MPLS-TP LSP Endpoint Identifier
+	AddrFamilyMPLSTPPseudowireEndpointID    = 28    // MPLS-TP Pseudowire Endpoint Identifier
+	AddrFamilyMTIPv4                        = 29    // MT IP: Multi-Topology IP version 4
+	AddrFamilyMTIPv6                        = 30    // MT IPv6: Multi-Topology IP version 6
+	AddrFamilyEIGRPCommonServiceFamily      = 16384 // EIGRP Common Service Family
+	AddrFamilyEIGRPIPv4ServiceFamily        = 16385 // EIGRP IPv4 Service Family
+	AddrFamilyEIGRPIPv6ServiceFamily        = 16386 // EIGRP IPv6 Service Family
+	AddrFamilyLISPCanonicalAddressFormat    = 16387 // LISP Canonical Address Format (LCAF)
+	AddrFamilyBGPLS                         = 16388 // BGP-LS
+	AddrFamily48bitMAC                      = 16389 // 48-bit MAC
+	AddrFamily64bitMAC                      = 16390 // 64-bit MAC
+	AddrFamilyOUI                           = 16391 // OUI
+	AddrFamilyMACFinal24bits                = 16392 // MAC/24
+	AddrFamilyMACFinal40bits                = 16393 // MAC/40
+	AddrFamilyIPv6Initial64bits             = 16394 // IPv6/64
+	AddrFamilyRBridgePortID                 = 16395 // RBridge Port ID
+	AddrFamilyTRILLNickname                 = 16396 // TRILL Nickname
+)
diff --git a/vendor/golang.org/x/net/internal/iana/gen.go b/vendor/golang.org/x/net/internal/iana/gen.go
deleted file mode 100644
index 2a5c310..0000000
--- a/vendor/golang.org/x/net/internal/iana/gen.go
+++ /dev/null
@@ -1,293 +0,0 @@
-// Copyright 2013 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.
-
-// +build ignore
-
-//go:generate go run gen.go
-
-// This program generates internet protocol constants and tables by
-// reading IANA protocol registries.
-package main
-
-import (
-	"bytes"
-	"encoding/xml"
-	"fmt"
-	"go/format"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"os"
-	"strconv"
-	"strings"
-)
-
-var registries = []struct {
-	url   string
-	parse func(io.Writer, io.Reader) error
-}{
-	{
-		"https://www.iana.org/assignments/dscp-registry/dscp-registry.xml",
-		parseDSCPRegistry,
-	},
-	{
-		"https://www.iana.org/assignments/ipv4-tos-byte/ipv4-tos-byte.xml",
-		parseTOSTCByte,
-	},
-	{
-		"https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xml",
-		parseProtocolNumbers,
-	},
-}
-
-func main() {
-	var bb bytes.Buffer
-	fmt.Fprintf(&bb, "// go generate gen.go\n")
-	fmt.Fprintf(&bb, "// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT\n\n")
-	fmt.Fprintf(&bb, "// Package iana provides protocol number resources managed by the Internet Assigned Numbers Authority (IANA).\n")
-	fmt.Fprintf(&bb, `package iana // import "golang.org/x/net/internal/iana"`+"\n\n")
-	for _, r := range registries {
-		resp, err := http.Get(r.url)
-		if err != nil {
-			fmt.Fprintln(os.Stderr, err)
-			os.Exit(1)
-		}
-		defer resp.Body.Close()
-		if resp.StatusCode != http.StatusOK {
-			fmt.Fprintf(os.Stderr, "got HTTP status code %v for %v\n", resp.StatusCode, r.url)
-			os.Exit(1)
-		}
-		if err := r.parse(&bb, resp.Body); err != nil {
-			fmt.Fprintln(os.Stderr, err)
-			os.Exit(1)
-		}
-		fmt.Fprintf(&bb, "\n")
-	}
-	b, err := format.Source(bb.Bytes())
-	if err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		os.Exit(1)
-	}
-	if err := ioutil.WriteFile("const.go", b, 0644); err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		os.Exit(1)
-	}
-}
-
-func parseDSCPRegistry(w io.Writer, r io.Reader) error {
-	dec := xml.NewDecoder(r)
-	var dr dscpRegistry
-	if err := dec.Decode(&dr); err != nil {
-		return err
-	}
-	drs := dr.escape()
-	fmt.Fprintf(w, "// %s, Updated: %s\n", dr.Title, dr.Updated)
-	fmt.Fprintf(w, "const (\n")
-	for _, dr := range drs {
-		fmt.Fprintf(w, "DiffServ%s = %#x", dr.Name, dr.Value)
-		fmt.Fprintf(w, "// %s\n", dr.OrigName)
-	}
-	fmt.Fprintf(w, ")\n")
-	return nil
-}
-
-type dscpRegistry struct {
-	XMLName     xml.Name `xml:"registry"`
-	Title       string   `xml:"title"`
-	Updated     string   `xml:"updated"`
-	Note        string   `xml:"note"`
-	RegTitle    string   `xml:"registry>title"`
-	PoolRecords []struct {
-		Name  string `xml:"name"`
-		Space string `xml:"space"`
-	} `xml:"registry>record"`
-	Records []struct {
-		Name  string `xml:"name"`
-		Space string `xml:"space"`
-	} `xml:"registry>registry>record"`
-}
-
-type canonDSCPRecord struct {
-	OrigName string
-	Name     string
-	Value    int
-}
-
-func (drr *dscpRegistry) escape() []canonDSCPRecord {
-	drs := make([]canonDSCPRecord, len(drr.Records))
-	sr := strings.NewReplacer(
-		"+", "",
-		"-", "",
-		"/", "",
-		".", "",
-		" ", "",
-	)
-	for i, dr := range drr.Records {
-		s := strings.TrimSpace(dr.Name)
-		drs[i].OrigName = s
-		drs[i].Name = sr.Replace(s)
-		n, err := strconv.ParseUint(dr.Space, 2, 8)
-		if err != nil {
-			continue
-		}
-		drs[i].Value = int(n) << 2
-	}
-	return drs
-}
-
-func parseTOSTCByte(w io.Writer, r io.Reader) error {
-	dec := xml.NewDecoder(r)
-	var ttb tosTCByte
-	if err := dec.Decode(&ttb); err != nil {
-		return err
-	}
-	trs := ttb.escape()
-	fmt.Fprintf(w, "// %s, Updated: %s\n", ttb.Title, ttb.Updated)
-	fmt.Fprintf(w, "const (\n")
-	for _, tr := range trs {
-		fmt.Fprintf(w, "%s = %#x", tr.Keyword, tr.Value)
-		fmt.Fprintf(w, "// %s\n", tr.OrigKeyword)
-	}
-	fmt.Fprintf(w, ")\n")
-	return nil
-}
-
-type tosTCByte struct {
-	XMLName  xml.Name `xml:"registry"`
-	Title    string   `xml:"title"`
-	Updated  string   `xml:"updated"`
-	Note     string   `xml:"note"`
-	RegTitle string   `xml:"registry>title"`
-	Records  []struct {
-		Binary  string `xml:"binary"`
-		Keyword string `xml:"keyword"`
-	} `xml:"registry>record"`
-}
-
-type canonTOSTCByteRecord struct {
-	OrigKeyword string
-	Keyword     string
-	Value       int
-}
-
-func (ttb *tosTCByte) escape() []canonTOSTCByteRecord {
-	trs := make([]canonTOSTCByteRecord, len(ttb.Records))
-	sr := strings.NewReplacer(
-		"Capable", "",
-		"(", "",
-		")", "",
-		"+", "",
-		"-", "",
-		"/", "",
-		".", "",
-		" ", "",
-	)
-	for i, tr := range ttb.Records {
-		s := strings.TrimSpace(tr.Keyword)
-		trs[i].OrigKeyword = s
-		ss := strings.Split(s, " ")
-		if len(ss) > 1 {
-			trs[i].Keyword = strings.Join(ss[1:], " ")
-		} else {
-			trs[i].Keyword = ss[0]
-		}
-		trs[i].Keyword = sr.Replace(trs[i].Keyword)
-		n, err := strconv.ParseUint(tr.Binary, 2, 8)
-		if err != nil {
-			continue
-		}
-		trs[i].Value = int(n)
-	}
-	return trs
-}
-
-func parseProtocolNumbers(w io.Writer, r io.Reader) error {
-	dec := xml.NewDecoder(r)
-	var pn protocolNumbers
-	if err := dec.Decode(&pn); err != nil {
-		return err
-	}
-	prs := pn.escape()
-	prs = append([]canonProtocolRecord{{
-		Name:  "IP",
-		Descr: "IPv4 encapsulation, pseudo protocol number",
-		Value: 0,
-	}}, prs...)
-	fmt.Fprintf(w, "// %s, Updated: %s\n", pn.Title, pn.Updated)
-	fmt.Fprintf(w, "const (\n")
-	for _, pr := range prs {
-		if pr.Name == "" {
-			continue
-		}
-		fmt.Fprintf(w, "Protocol%s = %d", pr.Name, pr.Value)
-		s := pr.Descr
-		if s == "" {
-			s = pr.OrigName
-		}
-		fmt.Fprintf(w, "// %s\n", s)
-	}
-	fmt.Fprintf(w, ")\n")
-	return nil
-}
-
-type protocolNumbers struct {
-	XMLName  xml.Name `xml:"registry"`
-	Title    string   `xml:"title"`
-	Updated  string   `xml:"updated"`
-	RegTitle string   `xml:"registry>title"`
-	Note     string   `xml:"registry>note"`
-	Records  []struct {
-		Value string `xml:"value"`
-		Name  string `xml:"name"`
-		Descr string `xml:"description"`
-	} `xml:"registry>record"`
-}
-
-type canonProtocolRecord struct {
-	OrigName string
-	Name     string
-	Descr    string
-	Value    int
-}
-
-func (pn *protocolNumbers) escape() []canonProtocolRecord {
-	prs := make([]canonProtocolRecord, len(pn.Records))
-	sr := strings.NewReplacer(
-		"-in-", "in",
-		"-within-", "within",
-		"-over-", "over",
-		"+", "P",
-		"-", "",
-		"/", "",
-		".", "",
-		" ", "",
-	)
-	for i, pr := range pn.Records {
-		if strings.Contains(pr.Name, "Deprecated") ||
-			strings.Contains(pr.Name, "deprecated") {
-			continue
-		}
-		prs[i].OrigName = pr.Name
-		s := strings.TrimSpace(pr.Name)
-		switch pr.Name {
-		case "ISIS over IPv4":
-			prs[i].Name = "ISIS"
-		case "manet":
-			prs[i].Name = "MANET"
-		default:
-			prs[i].Name = sr.Replace(s)
-		}
-		ss := strings.Split(pr.Descr, "\n")
-		for i := range ss {
-			ss[i] = strings.TrimSpace(ss[i])
-		}
-		if len(ss) > 1 {
-			prs[i].Descr = strings.Join(ss, " ")
-		} else {
-			prs[i].Descr = ss[0]
-		}
-		prs[i].Value, _ = strconv.Atoi(pr.Value)
-	}
-	return prs
-}
diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr.go b/vendor/golang.org/x/net/internal/socket/cmsghdr.go
index 1eb07d2..0cde35a 100644
--- a/vendor/golang.org/x/net/internal/socket/cmsghdr.go
+++ b/vendor/golang.org/x/net/internal/socket/cmsghdr.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.
 
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_bsd.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_bsd.go
index d1d0c2d..14dbb3a 100644
--- a/vendor/golang.org/x/net/internal/socket/cmsghdr_bsd.go
+++ b/vendor/golang.org/x/net/internal/socket/cmsghdr_bsd.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.
 
-// +build darwin dragonfly freebsd netbsd openbsd
+// +build aix darwin dragonfly freebsd netbsd openbsd
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_linux_64bit.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_linux_64bit.go
index 63f0534..27be0ef 100644
--- a/vendor/golang.org/x/net/internal/socket/cmsghdr_linux_64bit.go
+++ b/vendor/golang.org/x/net/internal/socket/cmsghdr_linux_64bit.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.
 
-// +build arm64 amd64 ppc64 ppc64le mips64 mips64le s390x
+// +build arm64 amd64 ppc64 ppc64le mips64 mips64le riscv64 s390x
 // +build linux
 
 package socket
diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_stub.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_stub.go
index a4e7122..83c35ec 100644
--- a/vendor/golang.org/x/net/internal/socket/cmsghdr_stub.go
+++ b/vendor/golang.org/x/net/internal/socket/cmsghdr_stub.go
@@ -2,13 +2,23 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!zos
 
 package socket
 
-type cmsghdr struct{}
+func controlHeaderLen() int {
+	return 0
+}
+
+func controlMessageLen(dataLen int) int {
+	return 0
+}
 
-const sizeofCmsghdr = 0
+func controlMessageSpace(dataLen int) int {
+	return 0
+}
+
+type cmsghdr struct{}
 
 func (h *cmsghdr) len() int { return 0 }
 func (h *cmsghdr) lvl() int { return 0 }
diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_unix.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_unix.go
new file mode 100644
index 0000000..c2b2b65
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/cmsghdr_unix.go
@@ -0,0 +1,21 @@
+// Copyright 2020 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.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package socket
+
+import "golang.org/x/sys/unix"
+
+func controlHeaderLen() int {
+	return unix.CmsgLen(0)
+}
+
+func controlMessageLen(dataLen int) int {
+	return unix.CmsgLen(dataLen)
+}
+
+func controlMessageSpace(dataLen int) int {
+	return unix.CmsgSpace(dataLen)
+}
diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_zos_s390x.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_zos_s390x.go
new file mode 100644
index 0000000..98be146
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/cmsghdr_zos_s390x.go
@@ -0,0 +1,25 @@
+// Copyright 2020 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 socket
+
+import "syscall"
+
+func (h *cmsghdr) set(l, lvl, typ int) {
+	h.Len = int32(l)
+	h.Level = int32(lvl)
+	h.Type = int32(typ)
+}
+
+func controlHeaderLen() int {
+	return syscall.CmsgLen(0)
+}
+
+func controlMessageLen(dataLen int) int {
+	return syscall.CmsgLen(dataLen)
+}
+
+func controlMessageSpace(dataLen int) int {
+	return syscall.CmsgSpace(dataLen)
+}
diff --git a/vendor/golang.org/x/net/internal/socket/defs_darwin.go b/vendor/golang.org/x/net/internal/socket/defs_darwin.go
deleted file mode 100644
index 14e28c0..0000000
--- a/vendor/golang.org/x/net/internal/socket/defs_darwin.go
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2017 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package socket
-
-/*
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysAF_UNSPEC = C.AF_UNSPEC
-	sysAF_INET   = C.AF_INET
-	sysAF_INET6  = C.AF_INET6
-
-	sysSOCK_RAW = C.SOCK_RAW
-)
-
-type iovec C.struct_iovec
-
-type msghdr C.struct_msghdr
-
-type cmsghdr C.struct_cmsghdr
-
-type sockaddrInet C.struct_sockaddr_in
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-const (
-	sizeofIovec   = C.sizeof_struct_iovec
-	sizeofMsghdr  = C.sizeof_struct_msghdr
-	sizeofCmsghdr = C.sizeof_struct_cmsghdr
-
-	sizeofSockaddrInet  = C.sizeof_struct_sockaddr_in
-	sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-)
diff --git a/vendor/golang.org/x/net/internal/socket/defs_dragonfly.go b/vendor/golang.org/x/net/internal/socket/defs_dragonfly.go
deleted file mode 100644
index 14e28c0..0000000
--- a/vendor/golang.org/x/net/internal/socket/defs_dragonfly.go
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2017 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package socket
-
-/*
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysAF_UNSPEC = C.AF_UNSPEC
-	sysAF_INET   = C.AF_INET
-	sysAF_INET6  = C.AF_INET6
-
-	sysSOCK_RAW = C.SOCK_RAW
-)
-
-type iovec C.struct_iovec
-
-type msghdr C.struct_msghdr
-
-type cmsghdr C.struct_cmsghdr
-
-type sockaddrInet C.struct_sockaddr_in
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-const (
-	sizeofIovec   = C.sizeof_struct_iovec
-	sizeofMsghdr  = C.sizeof_struct_msghdr
-	sizeofCmsghdr = C.sizeof_struct_cmsghdr
-
-	sizeofSockaddrInet  = C.sizeof_struct_sockaddr_in
-	sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-)
diff --git a/vendor/golang.org/x/net/internal/socket/defs_freebsd.go b/vendor/golang.org/x/net/internal/socket/defs_freebsd.go
deleted file mode 100644
index 14e28c0..0000000
--- a/vendor/golang.org/x/net/internal/socket/defs_freebsd.go
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2017 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package socket
-
-/*
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysAF_UNSPEC = C.AF_UNSPEC
-	sysAF_INET   = C.AF_INET
-	sysAF_INET6  = C.AF_INET6
-
-	sysSOCK_RAW = C.SOCK_RAW
-)
-
-type iovec C.struct_iovec
-
-type msghdr C.struct_msghdr
-
-type cmsghdr C.struct_cmsghdr
-
-type sockaddrInet C.struct_sockaddr_in
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-const (
-	sizeofIovec   = C.sizeof_struct_iovec
-	sizeofMsghdr  = C.sizeof_struct_msghdr
-	sizeofCmsghdr = C.sizeof_struct_cmsghdr
-
-	sizeofSockaddrInet  = C.sizeof_struct_sockaddr_in
-	sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-)
diff --git a/vendor/golang.org/x/net/internal/socket/defs_linux.go b/vendor/golang.org/x/net/internal/socket/defs_linux.go
deleted file mode 100644
index ce9ec2f..0000000
--- a/vendor/golang.org/x/net/internal/socket/defs_linux.go
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright 2017 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package socket
-
-/*
-#include <linux/in.h>
-#include <linux/in6.h>
-
-#define _GNU_SOURCE
-#include <sys/socket.h>
-*/
-import "C"
-
-const (
-	sysAF_UNSPEC = C.AF_UNSPEC
-	sysAF_INET   = C.AF_INET
-	sysAF_INET6  = C.AF_INET6
-
-	sysSOCK_RAW = C.SOCK_RAW
-)
-
-type iovec C.struct_iovec
-
-type msghdr C.struct_msghdr
-
-type mmsghdr C.struct_mmsghdr
-
-type cmsghdr C.struct_cmsghdr
-
-type sockaddrInet C.struct_sockaddr_in
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-const (
-	sizeofIovec   = C.sizeof_struct_iovec
-	sizeofMsghdr  = C.sizeof_struct_msghdr
-	sizeofMmsghdr = C.sizeof_struct_mmsghdr
-	sizeofCmsghdr = C.sizeof_struct_cmsghdr
-
-	sizeofSockaddrInet  = C.sizeof_struct_sockaddr_in
-	sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-)
diff --git a/vendor/golang.org/x/net/internal/socket/defs_netbsd.go b/vendor/golang.org/x/net/internal/socket/defs_netbsd.go
deleted file mode 100644
index 3f84335..0000000
--- a/vendor/golang.org/x/net/internal/socket/defs_netbsd.go
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright 2017 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package socket
-
-/*
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysAF_UNSPEC = C.AF_UNSPEC
-	sysAF_INET   = C.AF_INET
-	sysAF_INET6  = C.AF_INET6
-
-	sysSOCK_RAW = C.SOCK_RAW
-)
-
-type iovec C.struct_iovec
-
-type msghdr C.struct_msghdr
-
-type mmsghdr C.struct_mmsghdr
-
-type cmsghdr C.struct_cmsghdr
-
-type sockaddrInet C.struct_sockaddr_in
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-const (
-	sizeofIovec   = C.sizeof_struct_iovec
-	sizeofMsghdr  = C.sizeof_struct_msghdr
-	sizeofMmsghdr = C.sizeof_struct_mmsghdr
-	sizeofCmsghdr = C.sizeof_struct_cmsghdr
-
-	sizeofSockaddrInet  = C.sizeof_struct_sockaddr_in
-	sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-)
diff --git a/vendor/golang.org/x/net/internal/socket/defs_openbsd.go b/vendor/golang.org/x/net/internal/socket/defs_openbsd.go
deleted file mode 100644
index 14e28c0..0000000
--- a/vendor/golang.org/x/net/internal/socket/defs_openbsd.go
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2017 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package socket
-
-/*
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysAF_UNSPEC = C.AF_UNSPEC
-	sysAF_INET   = C.AF_INET
-	sysAF_INET6  = C.AF_INET6
-
-	sysSOCK_RAW = C.SOCK_RAW
-)
-
-type iovec C.struct_iovec
-
-type msghdr C.struct_msghdr
-
-type cmsghdr C.struct_cmsghdr
-
-type sockaddrInet C.struct_sockaddr_in
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-const (
-	sizeofIovec   = C.sizeof_struct_iovec
-	sizeofMsghdr  = C.sizeof_struct_msghdr
-	sizeofCmsghdr = C.sizeof_struct_cmsghdr
-
-	sizeofSockaddrInet  = C.sizeof_struct_sockaddr_in
-	sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-)
diff --git a/vendor/golang.org/x/net/internal/socket/defs_solaris.go b/vendor/golang.org/x/net/internal/socket/defs_solaris.go
deleted file mode 100644
index 14e28c0..0000000
--- a/vendor/golang.org/x/net/internal/socket/defs_solaris.go
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2017 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package socket
-
-/*
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysAF_UNSPEC = C.AF_UNSPEC
-	sysAF_INET   = C.AF_INET
-	sysAF_INET6  = C.AF_INET6
-
-	sysSOCK_RAW = C.SOCK_RAW
-)
-
-type iovec C.struct_iovec
-
-type msghdr C.struct_msghdr
-
-type cmsghdr C.struct_cmsghdr
-
-type sockaddrInet C.struct_sockaddr_in
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-const (
-	sizeofIovec   = C.sizeof_struct_iovec
-	sizeofMsghdr  = C.sizeof_struct_msghdr
-	sizeofCmsghdr = C.sizeof_struct_cmsghdr
-
-	sizeofSockaddrInet  = C.sizeof_struct_sockaddr_in
-	sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-)
diff --git a/vendor/golang.org/x/net/internal/socket/empty.s b/vendor/golang.org/x/net/internal/socket/empty.s
new file mode 100644
index 0000000..bff0231
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/empty.s
@@ -0,0 +1,7 @@
+// Copyright 2018 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.
+
+// +build darwin,go1.12
+
+// This exists solely so we can linkname in symbols from syscall.
diff --git a/vendor/golang.org/x/net/internal/socket/error_unix.go b/vendor/golang.org/x/net/internal/socket/error_unix.go
index 93dff91..47f0d6e 100644
--- a/vendor/golang.org/x/net/internal/socket/error_unix.go
+++ b/vendor/golang.org/x/net/internal/socket/error_unix.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.
 
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/iovec_64bit.go b/vendor/golang.org/x/net/internal/socket/iovec_64bit.go
index afb34ad..0309e10 100644
--- a/vendor/golang.org/x/net/internal/socket/iovec_64bit.go
+++ b/vendor/golang.org/x/net/internal/socket/iovec_64bit.go
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build arm64 amd64 ppc64 ppc64le mips64 mips64le s390x
-// +build darwin dragonfly freebsd linux netbsd openbsd
+// +build arm64 amd64 ppc64 ppc64le mips64 mips64le riscv64 s390x
+// +build aix darwin dragonfly freebsd linux netbsd openbsd zos
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/iovec_stub.go b/vendor/golang.org/x/net/internal/socket/iovec_stub.go
index c87d2a9..f44d4f5 100644
--- a/vendor/golang.org/x/net/internal/socket/iovec_stub.go
+++ b/vendor/golang.org/x/net/internal/socket/iovec_stub.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.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!zos
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/mmsghdr_stub.go b/vendor/golang.org/x/net/internal/socket/mmsghdr_stub.go
index 2e80a9c..1a7f279 100644
--- a/vendor/golang.org/x/net/internal/socket/mmsghdr_stub.go
+++ b/vendor/golang.org/x/net/internal/socket/mmsghdr_stub.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.
 
-// +build !linux,!netbsd
+// +build !aix,!linux,!netbsd
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/mmsghdr_unix.go b/vendor/golang.org/x/net/internal/socket/mmsghdr_unix.go
index 3c42ea7..f110068 100644
--- a/vendor/golang.org/x/net/internal/socket/mmsghdr_unix.go
+++ b/vendor/golang.org/x/net/internal/socket/mmsghdr_unix.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.
 
-// +build linux netbsd
+// +build aix linux netbsd
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_bsd.go b/vendor/golang.org/x/net/internal/socket/msghdr_bsd.go
index 5567afc..77f44c1 100644
--- a/vendor/golang.org/x/net/internal/socket/msghdr_bsd.go
+++ b/vendor/golang.org/x/net/internal/socket/msghdr_bsd.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.
 
-// +build darwin dragonfly freebsd netbsd openbsd
+// +build aix darwin dragonfly freebsd netbsd openbsd
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_bsdvar.go b/vendor/golang.org/x/net/internal/socket/msghdr_bsdvar.go
index b8c87b7..c5562dd 100644
--- a/vendor/golang.org/x/net/internal/socket/msghdr_bsdvar.go
+++ b/vendor/golang.org/x/net/internal/socket/msghdr_bsdvar.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.
 
-// +build darwin dragonfly freebsd netbsd
+// +build aix darwin dragonfly freebsd netbsd
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_linux_64bit.go b/vendor/golang.org/x/net/internal/socket/msghdr_linux_64bit.go
index 610fc4f..e731833 100644
--- a/vendor/golang.org/x/net/internal/socket/msghdr_linux_64bit.go
+++ b/vendor/golang.org/x/net/internal/socket/msghdr_linux_64bit.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.
 
-// +build arm64 amd64 ppc64 ppc64le mips64 mips64le s390x
+// +build arm64 amd64 ppc64 ppc64le mips64 mips64le riscv64 s390x
 // +build linux
 
 package socket
diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_stub.go b/vendor/golang.org/x/net/internal/socket/msghdr_stub.go
index 64e8173..1a253d2 100644
--- a/vendor/golang.org/x/net/internal/socket/msghdr_stub.go
+++ b/vendor/golang.org/x/net/internal/socket/msghdr_stub.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.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!zos
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_zos_s390x.go b/vendor/golang.org/x/net/internal/socket/msghdr_zos_s390x.go
new file mode 100644
index 0000000..eb1a99a
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/msghdr_zos_s390x.go
@@ -0,0 +1,36 @@
+// Copyright 2020 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.
+
+// +build s390x
+// +build zos
+
+package socket
+
+import "unsafe"
+
+func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {
+	for i := range vs {
+		vs[i].set(bs[i])
+	}
+	if len(vs) > 0 {
+		h.Iov = &vs[0]
+		h.Iovlen = int32(len(vs))
+	}
+	if len(oob) > 0 {
+		h.Control = (*byte)(unsafe.Pointer(&oob[0]))
+		h.Controllen = uint32(len(oob))
+	}
+	if sa != nil {
+		h.Name = (*byte)(unsafe.Pointer(&sa[0]))
+		h.Namelen = uint32(len(sa))
+	}
+}
+
+func (h *msghdr) controllen() int {
+	return int(h.Controllen)
+}
+
+func (h *msghdr) flags() int {
+	return int(h.Flags)
+}
diff --git a/vendor/golang.org/x/net/internal/socket/norace.go b/vendor/golang.org/x/net/internal/socket/norace.go
new file mode 100644
index 0000000..9519ffb
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/norace.go
@@ -0,0 +1,12 @@
+// Copyright 2019 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.
+
+// +build !race
+
+package socket
+
+func (m *Message) raceRead() {
+}
+func (m *Message) raceWrite() {
+}
diff --git a/vendor/golang.org/x/net/internal/socket/race.go b/vendor/golang.org/x/net/internal/socket/race.go
new file mode 100644
index 0000000..df60c62
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/race.go
@@ -0,0 +1,37 @@
+// Copyright 2019 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.
+
+// +build race
+
+package socket
+
+import (
+	"runtime"
+	"unsafe"
+)
+
+// This package reads and writes the Message buffers using a
+// direct system call, which the race detector can't see.
+// These functions tell the race detector what is going on during the syscall.
+
+func (m *Message) raceRead() {
+	for _, b := range m.Buffers {
+		if len(b) > 0 {
+			runtime.RaceReadRange(unsafe.Pointer(&b[0]), len(b))
+		}
+	}
+	if b := m.OOB; len(b) > 0 {
+		runtime.RaceReadRange(unsafe.Pointer(&b[0]), len(b))
+	}
+}
+func (m *Message) raceWrite() {
+	for _, b := range m.Buffers {
+		if len(b) > 0 {
+			runtime.RaceWriteRange(unsafe.Pointer(&b[0]), len(b))
+		}
+	}
+	if b := m.OOB; len(b) > 0 {
+		runtime.RaceWriteRange(unsafe.Pointer(&b[0]), len(b))
+	}
+}
diff --git a/vendor/golang.org/x/net/internal/socket/rawconn.go b/vendor/golang.org/x/net/internal/socket/rawconn.go
index d6871d5..b07b890 100644
--- a/vendor/golang.org/x/net/internal/socket/rawconn.go
+++ b/vendor/golang.org/x/net/internal/socket/rawconn.go
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build go1.9
-
 package socket
 
 import (
diff --git a/vendor/golang.org/x/net/internal/socket/rawconn_mmsg.go b/vendor/golang.org/x/net/internal/socket/rawconn_mmsg.go
index 499164a..d01fc4c 100644
--- a/vendor/golang.org/x/net/internal/socket/rawconn_mmsg.go
+++ b/vendor/golang.org/x/net/internal/socket/rawconn_mmsg.go
@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build go1.9
 // +build linux
 
 package socket
@@ -14,6 +13,9 @@ import (
 )
 
 func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
+	for i := range ms {
+		ms[i].raceWrite()
+	}
 	hs := make(mmsghdrs, len(ms))
 	var parseFn func([]byte, string) (net.Addr, error)
 	if c.network != "tcp" {
@@ -44,6 +46,9 @@ func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
 }
 
 func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
+	for i := range ms {
+		ms[i].raceRead()
+	}
 	hs := make(mmsghdrs, len(ms))
 	var marshalFn func(net.Addr) []byte
 	if c.network != "tcp" {
diff --git a/vendor/golang.org/x/net/internal/socket/rawconn_msg.go b/vendor/golang.org/x/net/internal/socket/rawconn_msg.go
index b21d2e6..610b1a1 100644
--- a/vendor/golang.org/x/net/internal/socket/rawconn_msg.go
+++ b/vendor/golang.org/x/net/internal/socket/rawconn_msg.go
@@ -2,17 +2,18 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build go1.9
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris windows zos
 
 package socket
 
 import (
 	"os"
+	"runtime"
 	"syscall"
 )
 
 func (c *Conn) recvMsg(m *Message, flags int) error {
+	m.raceWrite()
 	var h msghdr
 	vs := make([]iovec, len(m.Buffers))
 	var sa []byte
@@ -24,7 +25,7 @@ func (c *Conn) recvMsg(m *Message, flags int) error {
 	var n int
 	fn := func(s uintptr) bool {
 		n, operr = recvmsg(s, &h, flags)
-		if operr == syscall.EAGAIN {
+		if operr == syscall.EAGAIN || (runtime.GOOS == "zos" && operr == syscall.EWOULDBLOCK) {
 			return false
 		}
 		return true
@@ -49,6 +50,7 @@ func (c *Conn) recvMsg(m *Message, flags int) error {
 }
 
 func (c *Conn) sendMsg(m *Message, flags int) error {
+	m.raceRead()
 	var h msghdr
 	vs := make([]iovec, len(m.Buffers))
 	var sa []byte
@@ -60,7 +62,7 @@ func (c *Conn) sendMsg(m *Message, flags int) error {
 	var n int
 	fn := func(s uintptr) bool {
 		n, operr = sendmsg(s, &h, flags)
-		if operr == syscall.EAGAIN {
+		if operr == syscall.EAGAIN || (runtime.GOOS == "zos" && operr == syscall.EWOULDBLOCK) {
 			return false
 		}
 		return true
diff --git a/vendor/golang.org/x/net/internal/socket/rawconn_nommsg.go b/vendor/golang.org/x/net/internal/socket/rawconn_nommsg.go
index f78832a..fe5bb94 100644
--- a/vendor/golang.org/x/net/internal/socket/rawconn_nommsg.go
+++ b/vendor/golang.org/x/net/internal/socket/rawconn_nommsg.go
@@ -2,17 +2,14 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build go1.9
 // +build !linux
 
 package socket
 
-import "errors"
-
 func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
 
 func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/internal/socket/rawconn_nomsg.go b/vendor/golang.org/x/net/internal/socket/rawconn_nomsg.go
index 96733cb..e51b60d 100644
--- a/vendor/golang.org/x/net/internal/socket/rawconn_nomsg.go
+++ b/vendor/golang.org/x/net/internal/socket/rawconn_nomsg.go
@@ -2,17 +2,14 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build go1.9
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
 
 package socket
 
-import "errors"
-
 func (c *Conn) recvMsg(m *Message, flags int) error {
-	return errors.New("not implemented")
+	return errNotImplemented
 }
 
 func (c *Conn) sendMsg(m *Message, flags int) error {
-	return errors.New("not implemented")
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/internal/socket/rawconn_stub.go b/vendor/golang.org/x/net/internal/socket/rawconn_stub.go
deleted file mode 100644
index d2add1a..0000000
--- a/vendor/golang.org/x/net/internal/socket/rawconn_stub.go
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright 2017 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.
-
-// +build !go1.9
-
-package socket
-
-import "errors"
-
-func (c *Conn) recvMsg(m *Message, flags int) error {
-	return errors.New("not implemented")
-}
-
-func (c *Conn) sendMsg(m *Message, flags int) error {
-	return errors.New("not implemented")
-}
-
-func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
-	return 0, errors.New("not implemented")
-}
-
-func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
-	return 0, errors.New("not implemented")
-}
diff --git a/vendor/golang.org/x/net/internal/socket/reflect.go b/vendor/golang.org/x/net/internal/socket/reflect.go
deleted file mode 100644
index bb179f1..0000000
--- a/vendor/golang.org/x/net/internal/socket/reflect.go
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright 2017 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.
-
-// +build !go1.9
-
-package socket
-
-import (
-	"errors"
-	"net"
-	"os"
-	"reflect"
-	"runtime"
-)
-
-// A Conn represents a raw connection.
-type Conn struct {
-	c net.Conn
-}
-
-// NewConn returns a new raw connection.
-func NewConn(c net.Conn) (*Conn, error) {
-	return &Conn{c: c}, nil
-}
-
-func (o *Option) get(c *Conn, b []byte) (int, error) {
-	s, err := socketOf(c.c)
-	if err != nil {
-		return 0, err
-	}
-	n, err := getsockopt(s, o.Level, o.Name, b)
-	return n, os.NewSyscallError("getsockopt", err)
-}
-
-func (o *Option) set(c *Conn, b []byte) error {
-	s, err := socketOf(c.c)
-	if err != nil {
-		return err
-	}
-	return os.NewSyscallError("setsockopt", setsockopt(s, o.Level, o.Name, b))
-}
-
-func socketOf(c net.Conn) (uintptr, error) {
-	switch c.(type) {
-	case *net.TCPConn, *net.UDPConn, *net.IPConn:
-		v := reflect.ValueOf(c)
-		switch e := v.Elem(); e.Kind() {
-		case reflect.Struct:
-			fd := e.FieldByName("conn").FieldByName("fd")
-			switch e := fd.Elem(); e.Kind() {
-			case reflect.Struct:
-				sysfd := e.FieldByName("sysfd")
-				if runtime.GOOS == "windows" {
-					return uintptr(sysfd.Uint()), nil
-				}
-				return uintptr(sysfd.Int()), nil
-			}
-		}
-	}
-	return 0, errors.New("invalid type")
-}
diff --git a/vendor/golang.org/x/net/internal/socket/socket.go b/vendor/golang.org/x/net/internal/socket/socket.go
index 5f9730e..dba47bf 100644
--- a/vendor/golang.org/x/net/internal/socket/socket.go
+++ b/vendor/golang.org/x/net/internal/socket/socket.go
@@ -9,9 +9,12 @@ package socket // import "golang.org/x/net/internal/socket"
 import (
 	"errors"
 	"net"
+	"runtime"
 	"unsafe"
 )
 
+var errNotImplemented = errors.New("not implemented on " + runtime.GOOS + "/" + runtime.GOARCH)
+
 // An Option represents a sticky socket option.
 type Option struct {
 	Level int // level
@@ -87,17 +90,9 @@ func (o *Option) SetInt(c *Conn, v int) error {
 	return o.set(c, b)
 }
 
-func controlHeaderLen() int {
-	return roundup(sizeofCmsghdr)
-}
-
-func controlMessageLen(dataLen int) int {
-	return roundup(sizeofCmsghdr) + dataLen
-}
-
 // ControlMessageSpace returns the whole length of control message.
 func ControlMessageSpace(dataLen int) int {
-	return roundup(sizeofCmsghdr) + roundup(dataLen)
+	return controlMessageSpace(dataLen)
 }
 
 // A ControlMessage represents the head message in a stream of control
diff --git a/vendor/golang.org/x/net/internal/socket/sys.go b/vendor/golang.org/x/net/internal/socket/sys.go
index 4f0eead..4a26af1 100644
--- a/vendor/golang.org/x/net/internal/socket/sys.go
+++ b/vendor/golang.org/x/net/internal/socket/sys.go
@@ -9,13 +9,8 @@ import (
 	"unsafe"
 )
 
-var (
-	// NativeEndian is the machine native endian implementation of
-	// ByteOrder.
-	NativeEndian binary.ByteOrder
-
-	kernelAlign int
-)
+// NativeEndian is the machine native endian implementation of ByteOrder.
+var NativeEndian binary.ByteOrder
 
 func init() {
 	i := uint32(1)
@@ -25,9 +20,4 @@ func init() {
 	} else {
 		NativeEndian = binary.BigEndian
 	}
-	kernelAlign = probeProtocolStack()
-}
-
-func roundup(l int) int {
-	return (l + kernelAlign - 1) & ^(kernelAlign - 1)
 }
diff --git a/vendor/golang.org/x/net/internal/socket/sys_bsd.go b/vendor/golang.org/x/net/internal/socket/sys_bsd.go
index f13e14f..d432835 100644
--- a/vendor/golang.org/x/net/internal/socket/sys_bsd.go
+++ b/vendor/golang.org/x/net/internal/socket/sys_bsd.go
@@ -2,16 +2,14 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin dragonfly freebsd openbsd
+// +build aix darwin dragonfly freebsd openbsd
 
 package socket
 
-import "errors"
-
 func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
 
 func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/internal/socket/sys_bsdvar.go b/vendor/golang.org/x/net/internal/socket/sys_bsdvar.go
deleted file mode 100644
index f723fa3..0000000
--- a/vendor/golang.org/x/net/internal/socket/sys_bsdvar.go
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2017 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.
-
-// +build freebsd netbsd openbsd
-
-package socket
-
-import "unsafe"
-
-func probeProtocolStack() int {
-	var p uintptr
-	return int(unsafe.Sizeof(p))
-}
diff --git a/vendor/golang.org/x/net/internal/socket/sys_const_unix.go b/vendor/golang.org/x/net/internal/socket/sys_const_unix.go
new file mode 100644
index 0000000..43797d6
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/sys_const_unix.go
@@ -0,0 +1,17 @@
+// Copyright 2019 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.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package socket
+
+import "golang.org/x/sys/unix"
+
+const (
+	sysAF_UNSPEC = unix.AF_UNSPEC
+	sysAF_INET   = unix.AF_INET
+	sysAF_INET6  = unix.AF_INET6
+
+	sysSOCK_RAW = unix.SOCK_RAW
+)
diff --git a/vendor/golang.org/x/net/internal/socket/sys_const_zos.go b/vendor/golang.org/x/net/internal/socket/sys_const_zos.go
new file mode 100644
index 0000000..01b6372
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/sys_const_zos.go
@@ -0,0 +1,17 @@
+// Copyright 2020 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.
+
+// +build zos
+
+package socket
+
+import "syscall"
+
+const (
+	sysAF_UNSPEC = syscall.AF_UNSPEC
+	sysAF_INET   = syscall.AF_INET
+	sysAF_INET6  = syscall.AF_INET6
+
+	sysSOCK_RAW = syscall.SOCK_RAW
+)
diff --git a/vendor/golang.org/x/net/internal/socket/sys_darwin.go b/vendor/golang.org/x/net/internal/socket/sys_darwin.go
deleted file mode 100644
index b17d223..0000000
--- a/vendor/golang.org/x/net/internal/socket/sys_darwin.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright 2017 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 socket
-
-func probeProtocolStack() int { return 4 }
diff --git a/vendor/golang.org/x/net/internal/socket/sys_dragonfly.go b/vendor/golang.org/x/net/internal/socket/sys_dragonfly.go
deleted file mode 100644
index b17d223..0000000
--- a/vendor/golang.org/x/net/internal/socket/sys_dragonfly.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright 2017 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 socket
-
-func probeProtocolStack() int { return 4 }
diff --git a/vendor/golang.org/x/net/internal/socket/sys_linkname.go b/vendor/golang.org/x/net/internal/socket/sys_linkname.go
new file mode 100644
index 0000000..61c3f38
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/sys_linkname.go
@@ -0,0 +1,42 @@
+// Copyright 2018 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.
+
+// +build aix go1.12,darwin
+
+package socket
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+//go:linkname syscall_getsockopt syscall.getsockopt
+func syscall_getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *uint32) error
+
+func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
+	l := uint32(len(b))
+	err := syscall_getsockopt(int(s), level, name, unsafe.Pointer(&b[0]), &l)
+	return int(l), err
+}
+
+//go:linkname syscall_setsockopt syscall.setsockopt
+func syscall_setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) error
+
+func setsockopt(s uintptr, level, name int, b []byte) error {
+	return syscall_setsockopt(int(s), level, name, unsafe.Pointer(&b[0]), uintptr(len(b)))
+}
+
+//go:linkname syscall_recvmsg syscall.recvmsg
+func syscall_recvmsg(s int, msg *syscall.Msghdr, flags int) (n int, err error)
+
+func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
+	return syscall_recvmsg(int(s), (*syscall.Msghdr)(unsafe.Pointer(h)), flags)
+}
+
+//go:linkname syscall_sendmsg syscall.sendmsg
+func syscall_sendmsg(s int, msg *syscall.Msghdr, flags int) (n int, err error)
+
+func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
+	return syscall_sendmsg(int(s), (*syscall.Msghdr)(unsafe.Pointer(h)), flags)
+}
diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux.go b/vendor/golang.org/x/net/internal/socket/sys_linux.go
index 1559521..8b03cd6 100644
--- a/vendor/golang.org/x/net/internal/socket/sys_linux.go
+++ b/vendor/golang.org/x/net/internal/socket/sys_linux.go
@@ -11,11 +11,6 @@ import (
 	"unsafe"
 )
 
-func probeProtocolStack() int {
-	var p uintptr
-	return int(unsafe.Sizeof(p))
-}
-
 func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
 	n, _, errno := syscall.Syscall6(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0)
 	return int(n), errnoErr(errno)
diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_386.go b/vendor/golang.org/x/net/internal/socket/sys_linux_386.go
index 235b2cc..6512153 100644
--- a/vendor/golang.org/x/net/internal/socket/sys_linux_386.go
+++ b/vendor/golang.org/x/net/internal/socket/sys_linux_386.go
@@ -9,8 +9,6 @@ import (
 	"unsafe"
 )
 
-func probeProtocolStack() int { return 4 }
-
 const (
 	sysSETSOCKOPT = 0xe
 	sysGETSOCKOPT = 0xf
diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_riscv64.go b/vendor/golang.org/x/net/internal/socket/sys_linux_riscv64.go
new file mode 100644
index 0000000..64f69f1
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/sys_linux_riscv64.go
@@ -0,0 +1,12 @@
+// Copyright 2019 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.
+
+// +build riscv64
+
+package socket
+
+const (
+	sysRECVMMSG = 0xf3
+	sysSENDMMSG = 0x10d
+)
diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_s390x.go b/vendor/golang.org/x/net/internal/socket/sys_linux_s390x.go
index 327979e..6512153 100644
--- a/vendor/golang.org/x/net/internal/socket/sys_linux_s390x.go
+++ b/vendor/golang.org/x/net/internal/socket/sys_linux_s390x.go
@@ -9,8 +9,6 @@ import (
 	"unsafe"
 )
 
-func probeProtocolStack() int { return 8 }
-
 const (
 	sysSETSOCKOPT = 0xe
 	sysGETSOCKOPT = 0xf
diff --git a/vendor/golang.org/x/net/internal/socket/sys_posix.go b/vendor/golang.org/x/net/internal/socket/sys_posix.go
index dc130c2..05ded23 100644
--- a/vendor/golang.org/x/net/internal/socket/sys_posix.go
+++ b/vendor/golang.org/x/net/internal/socket/sys_posix.go
@@ -2,8 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build go1.9
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris windows zos
 
 package socket
 
@@ -34,7 +33,7 @@ func marshalSockaddr(ip net.IP, port int, zone string) []byte {
 	if ip4 := ip.To4(); ip4 != nil {
 		b := make([]byte, sizeofSockaddrInet)
 		switch runtime.GOOS {
-		case "android", "linux", "solaris", "windows":
+		case "android", "illumos", "linux", "solaris", "windows":
 			NativeEndian.PutUint16(b[:2], uint16(sysAF_INET))
 		default:
 			b[0] = sizeofSockaddrInet
@@ -47,7 +46,7 @@ func marshalSockaddr(ip net.IP, port int, zone string) []byte {
 	if ip6 := ip.To16(); ip6 != nil && ip.To4() == nil {
 		b := make([]byte, sizeofSockaddrInet6)
 		switch runtime.GOOS {
-		case "android", "linux", "solaris", "windows":
+		case "android", "illumos", "linux", "solaris", "windows":
 			NativeEndian.PutUint16(b[:2], uint16(sysAF_INET6))
 		default:
 			b[0] = sizeofSockaddrInet6
@@ -69,7 +68,7 @@ func parseInetAddr(b []byte, network string) (net.Addr, error) {
 	}
 	var af int
 	switch runtime.GOOS {
-	case "android", "linux", "solaris", "windows":
+	case "android", "illumos", "linux", "solaris", "windows":
 		af = int(NativeEndian.Uint16(b[:2]))
 	default:
 		af = int(b[1])
@@ -121,18 +120,21 @@ var zoneCache = ipv6ZoneCache{
 	toName:  make(map[int]string),
 }
 
-func (zc *ipv6ZoneCache) update(ift []net.Interface) {
+// update refreshes the network interface information if the cache was last
+// updated more than 1 minute ago, or if force is set. It returns whether the
+// cache was updated.
+func (zc *ipv6ZoneCache) update(ift []net.Interface, force bool) (updated bool) {
 	zc.Lock()
 	defer zc.Unlock()
 	now := time.Now()
-	if zc.lastFetched.After(now.Add(-60 * time.Second)) {
-		return
+	if !force && zc.lastFetched.After(now.Add(-60*time.Second)) {
+		return false
 	}
 	zc.lastFetched = now
 	if len(ift) == 0 {
 		var err error
 		if ift, err = net.Interfaces(); err != nil {
-			return
+			return false
 		}
 	}
 	zc.toIndex = make(map[string]int, len(ift))
@@ -143,25 +145,38 @@ func (zc *ipv6ZoneCache) update(ift []net.Interface) {
 			zc.toName[ifi.Index] = ifi.Name
 		}
 	}
+	return true
 }
 
 func (zc *ipv6ZoneCache) name(zone int) string {
-	zoneCache.update(nil)
+	updated := zoneCache.update(nil, false)
 	zoneCache.RLock()
-	defer zoneCache.RUnlock()
 	name, ok := zoneCache.toName[zone]
-	if !ok {
+	zoneCache.RUnlock()
+	if !ok && !updated {
+		zoneCache.update(nil, true)
+		zoneCache.RLock()
+		name, ok = zoneCache.toName[zone]
+		zoneCache.RUnlock()
+	}
+	if !ok { // last resort
 		name = strconv.Itoa(zone)
 	}
 	return name
 }
 
 func (zc *ipv6ZoneCache) index(zone string) int {
-	zoneCache.update(nil)
+	updated := zoneCache.update(nil, false)
 	zoneCache.RLock()
-	defer zoneCache.RUnlock()
 	index, ok := zoneCache.toIndex[zone]
-	if !ok {
+	zoneCache.RUnlock()
+	if !ok && !updated {
+		zoneCache.update(nil, true)
+		zoneCache.RLock()
+		index, ok = zoneCache.toIndex[zone]
+		zoneCache.RUnlock()
+	}
+	if !ok { // last resort
 		index, _ = strconv.Atoi(zone)
 	}
 	return index
diff --git a/vendor/golang.org/x/net/internal/socket/sys_solaris.go b/vendor/golang.org/x/net/internal/socket/sys_solaris.go
index cced74e..e79ca95 100644
--- a/vendor/golang.org/x/net/internal/socket/sys_solaris.go
+++ b/vendor/golang.org/x/net/internal/socket/sys_solaris.go
@@ -5,22 +5,10 @@
 package socket
 
 import (
-	"errors"
-	"runtime"
 	"syscall"
 	"unsafe"
 )
 
-func probeProtocolStack() int {
-	switch runtime.GOARCH {
-	case "amd64":
-		return 4
-	default:
-		var p uintptr
-		return int(unsafe.Sizeof(p))
-	}
-}
-
 //go:cgo_import_dynamic libc___xnet_getsockopt __xnet_getsockopt "libsocket.so"
 //go:cgo_import_dynamic libc_setsockopt setsockopt "libsocket.so"
 //go:cgo_import_dynamic libc___xnet_recvmsg __xnet_recvmsg "libsocket.so"
@@ -63,9 +51,9 @@ func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
 }
 
 func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
 
 func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/internal/socket/sys_stub.go b/vendor/golang.org/x/net/internal/socket/sys_stub.go
index d9f06d0..3c97008 100644
--- a/vendor/golang.org/x/net/internal/socket/sys_stub.go
+++ b/vendor/golang.org/x/net/internal/socket/sys_stub.go
@@ -2,16 +2,11 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
 
 package socket
 
-import (
-	"errors"
-	"net"
-	"runtime"
-	"unsafe"
-)
+import "net"
 
 const (
 	sysAF_UNSPEC = 0x0
@@ -21,44 +16,34 @@ const (
 	sysSOCK_RAW = 0x3
 )
 
-func probeProtocolStack() int {
-	switch runtime.GOARCH {
-	case "amd64p32", "mips64p32":
-		return 4
-	default:
-		var p uintptr
-		return int(unsafe.Sizeof(p))
-	}
-}
-
 func marshalInetAddr(ip net.IP, port int, zone string) []byte {
 	return nil
 }
 
 func parseInetAddr(b []byte, network string) (net.Addr, error) {
-	return nil, errors.New("not implemented")
+	return nil, errNotImplemented
 }
 
 func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
 
 func setsockopt(s uintptr, level, name int, b []byte) error {
-	return errors.New("not implemented")
+	return errNotImplemented
 }
 
 func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
 
 func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
 
 func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
 
 func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/internal/socket/sys_unix.go b/vendor/golang.org/x/net/internal/socket/sys_unix.go
index 18eba30..0eb7128 100644
--- a/vendor/golang.org/x/net/internal/socket/sys_unix.go
+++ b/vendor/golang.org/x/net/internal/socket/sys_unix.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.
 
-// +build darwin dragonfly freebsd linux,!s390x,!386 netbsd openbsd
+// +build dragonfly freebsd linux,!s390x,!386 netbsd openbsd
 
 package socket
 
diff --git a/vendor/golang.org/x/net/internal/socket/sys_windows.go b/vendor/golang.org/x/net/internal/socket/sys_windows.go
index 54a470e..d556a44 100644
--- a/vendor/golang.org/x/net/internal/socket/sys_windows.go
+++ b/vendor/golang.org/x/net/internal/socket/sys_windows.go
@@ -5,9 +5,10 @@
 package socket
 
 import (
-	"errors"
 	"syscall"
 	"unsafe"
+
+	"golang.org/x/sys/windows"
 )
 
 func probeProtocolStack() int {
@@ -16,11 +17,11 @@ func probeProtocolStack() int {
 }
 
 const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x17
+	sysAF_UNSPEC = windows.AF_UNSPEC
+	sysAF_INET   = windows.AF_INET
+	sysAF_INET6  = windows.AF_INET6
 
-	sysSOCK_RAW = 0x3
+	sysSOCK_RAW = windows.SOCK_RAW
 )
 
 type sockaddrInet struct {
@@ -54,17 +55,17 @@ func setsockopt(s uintptr, level, name int, b []byte) error {
 }
 
 func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
 
 func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
 
 func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
 
 func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
-	return 0, errors.New("not implemented")
+	return 0, errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.go b/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.go
new file mode 100644
index 0000000..1e38b92
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.go
@@ -0,0 +1,38 @@
+// Copyright 2020 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 socket
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func syscall_syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno)
+func syscall_syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
+
+func probeProtocolStack() int {
+	return 4 // sizeof(int) on GOOS=zos GOARCH=s390x
+}
+
+func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
+	l := uint32(len(b))
+	_, _, errno := syscall_syscall6(syscall.SYS_GETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(unsafe.Pointer(&l)), 0)
+	return int(l), errnoErr(errno)
+}
+
+func setsockopt(s uintptr, level, name int, b []byte) error {
+	_, _, errno := syscall_syscall6(syscall.SYS_SETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), 0)
+	return errnoErr(errno)
+}
+
+func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
+	n, _, errno := syscall_syscall(syscall.SYS___RECVMSG_A, s, uintptr(unsafe.Pointer(h)), uintptr(flags))
+	return int(n), errnoErr(errno)
+}
+
+func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
+	n, _, errno := syscall_syscall(syscall.SYS___SENDMSG_A, s, uintptr(unsafe.Pointer(h)), uintptr(flags))
+	return int(n), errnoErr(errno)
+}
diff --git a/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.s b/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.s
new file mode 100644
index 0000000..60d5839
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.s
@@ -0,0 +1,11 @@
+// Copyright 2020 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.
+
+#include "textflag.h"
+
+TEXT ·syscall_syscall(SB),NOSPLIT,$0
+        JMP     syscall·_syscall(SB)
+
+TEXT ·syscall_syscall6(SB),NOSPLIT,$0
+        JMP     syscall·_syscall6(SB)
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_aix_ppc64.go b/vendor/golang.org/x/net/internal/socket/zsys_aix_ppc64.go
new file mode 100644
index 0000000..93d923a
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/zsys_aix_ppc64.go
@@ -0,0 +1,59 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_aix.go
+
+// Added for go1.11 compatibility
+// +build aix
+
+package socket
+
+type iovec struct {
+	Base *byte
+	Len  uint64
+}
+
+type msghdr struct {
+	Name       *byte
+	Namelen    uint32
+	Iov        *iovec
+	Iovlen     int32
+	Control    *byte
+	Controllen uint32
+	Flags      int32
+}
+
+type mmsghdr struct {
+	Hdr       msghdr
+	Len       uint32
+	Pad_cgo_0 [4]byte
+}
+
+type cmsghdr struct {
+	Len   uint32
+	Level int32
+	Type  int32
+}
+
+type sockaddrInet struct {
+	Len    uint8
+	Family uint8
+	Port   uint16
+	Addr   [4]byte /* in_addr */
+	Zero   [8]uint8
+}
+
+type sockaddrInet6 struct {
+	Len      uint8
+	Family   uint8
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+const (
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
+
+	sizeofSockaddrInet  = 0x10
+	sizeofSockaddrInet6 = 0x1c
+)
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_darwin_386.go b/vendor/golang.org/x/net/internal/socket/zsys_darwin_386.go
index 26f8fef..150f980 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_darwin_386.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_darwin_386.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_darwin.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x1e
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -50,9 +42,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_darwin_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_darwin_amd64.go
index e2987f7..a686c95 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_darwin_amd64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_darwin_amd64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_darwin.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x1e
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -52,9 +44,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x30
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm.go b/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm.go
index 26f8fef..150f980 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_darwin.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x1e
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -50,9 +42,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm64.go b/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm64.go
index e2987f7..a686c95 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_darwin.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x1e
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -52,9 +44,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x30
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_dragonfly_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_dragonfly_amd64.go
index c582abd..d45c197 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_dragonfly_amd64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_dragonfly_amd64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_dragonfly.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x1c
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -52,9 +44,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x30
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_386.go b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_386.go
index 04a2488..ffec860 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_386.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_386.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x1c
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -50,9 +42,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_amd64.go
index 35c7cb9..aa701ab 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_amd64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_amd64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x1c
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -52,9 +44,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x30
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm.go b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm.go
index 04a2488..ffec860 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x1c
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -50,9 +42,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm64.go b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm64.go
new file mode 100644
index 0000000..aa701ab
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm64.go
@@ -0,0 +1,52 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_freebsd.go
+
+package socket
+
+type iovec struct {
+	Base *byte
+	Len  uint64
+}
+
+type msghdr struct {
+	Name       *byte
+	Namelen    uint32
+	Pad_cgo_0  [4]byte
+	Iov        *iovec
+	Iovlen     int32
+	Pad_cgo_1  [4]byte
+	Control    *byte
+	Controllen uint32
+	Flags      int32
+}
+
+type cmsghdr struct {
+	Len   uint32
+	Level int32
+	Type  int32
+}
+
+type sockaddrInet struct {
+	Len    uint8
+	Family uint8
+	Port   uint16
+	Addr   [4]byte /* in_addr */
+	Zero   [8]int8
+}
+
+type sockaddrInet6 struct {
+	Len      uint8
+	Family   uint8
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+const (
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
+
+	sizeofSockaddrInet  = 0x10
+	sizeofSockaddrInet6 = 0x1c
+)
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_386.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_386.go
index 4302069..0c847be 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_386.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_386.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -53,10 +45,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofMmsghdr = 0x20
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_amd64.go
index 1502f6c..15e2aec 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_amd64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_amd64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -56,10 +48,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x38
-	sizeofMmsghdr = 0x40
-	sizeofCmsghdr = 0x10
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x38
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_arm.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_arm.go
index 4302069..0c847be 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_arm.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_arm.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -53,10 +45,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofMmsghdr = 0x20
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_arm64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_arm64.go
index 1502f6c..15e2aec 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_arm64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_arm64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -56,10 +48,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x38
-	sizeofMmsghdr = 0x40
-	sizeofCmsghdr = 0x10
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x38
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_mips.go
index 4302069..0c847be 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_mips.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -53,10 +45,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofMmsghdr = 0x20
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64.go
index 1502f6c..15e2aec 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -56,10 +48,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x38
-	sizeofMmsghdr = 0x40
-	sizeofCmsghdr = 0x10
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x38
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64le.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64le.go
index 1502f6c..15e2aec 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64le.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64le.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -56,10 +48,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x38
-	sizeofMmsghdr = 0x40
-	sizeofCmsghdr = 0x10
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x38
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_mipsle.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_mipsle.go
index 4302069..0c847be 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_mipsle.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_mipsle.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -53,10 +45,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofMmsghdr = 0x20
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64.go
index 1502f6c..15e2aec 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -56,10 +48,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x38
-	sizeofMmsghdr = 0x40
-	sizeofCmsghdr = 0x10
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x38
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64le.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64le.go
index 1502f6c..15e2aec 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64le.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64le.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -56,10 +48,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x38
-	sizeofMmsghdr = 0x40
-	sizeofCmsghdr = 0x10
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x38
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_riscv64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_riscv64.go
new file mode 100644
index 0000000..8640c03
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_riscv64.go
@@ -0,0 +1,57 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_linux.go
+
+// +build riscv64
+
+package socket
+
+type iovec struct {
+	Base *byte
+	Len  uint64
+}
+
+type msghdr struct {
+	Name       *byte
+	Namelen    uint32
+	Iov        *iovec
+	Iovlen     uint64
+	Control    *byte
+	Controllen uint64
+	Flags      int32
+	Pad_cgo_0  [4]byte
+}
+
+type mmsghdr struct {
+	Hdr       msghdr
+	Len       uint32
+	Pad_cgo_0 [4]byte
+}
+
+type cmsghdr struct {
+	Len   uint64
+	Level int32
+	Type  int32
+}
+
+type sockaddrInet struct {
+	Family uint16
+	Port   uint16
+	Addr   [4]byte /* in_addr */
+	X__pad [8]uint8
+}
+
+type sockaddrInet6 struct {
+	Family   uint16
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+const (
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x38
+
+	sizeofSockaddrInet  = 0x10
+	sizeofSockaddrInet6 = 0x1c
+)
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_s390x.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_s390x.go
index 1502f6c..15e2aec 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_linux_s390x.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_linux_s390x.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0xa
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -56,10 +48,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x38
-	sizeofMmsghdr = 0x40
-	sizeofCmsghdr = 0x10
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x38
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_386.go b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_386.go
index db60491..6b72d24 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_386.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_386.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_netbsd.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x18
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -55,10 +47,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofMmsghdr = 0x20
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_amd64.go
index 2a1a799..9aaa4ab 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_amd64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_amd64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_netbsd.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x18
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -58,10 +50,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x30
-	sizeofMmsghdr = 0x40
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm.go b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm.go
index 206ea2d..6b72d24 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_netbsd.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x18
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -26,6 +18,11 @@ type msghdr struct {
 	Flags      int32
 }
 
+type mmsghdr struct {
+	Hdr msghdr
+	Len uint32
+}
+
 type cmsghdr struct {
 	Len   uint32
 	Level int32
@@ -50,9 +47,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm64.go b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm64.go
new file mode 100644
index 0000000..9aaa4ab
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm64.go
@@ -0,0 +1,58 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_netbsd.go
+
+package socket
+
+type iovec struct {
+	Base *byte
+	Len  uint64
+}
+
+type msghdr struct {
+	Name       *byte
+	Namelen    uint32
+	Pad_cgo_0  [4]byte
+	Iov        *iovec
+	Iovlen     int32
+	Pad_cgo_1  [4]byte
+	Control    *byte
+	Controllen uint32
+	Flags      int32
+}
+
+type mmsghdr struct {
+	Hdr       msghdr
+	Len       uint32
+	Pad_cgo_0 [4]byte
+}
+
+type cmsghdr struct {
+	Len   uint32
+	Level int32
+	Type  int32
+}
+
+type sockaddrInet struct {
+	Len    uint8
+	Family uint8
+	Port   uint16
+	Addr   [4]byte /* in_addr */
+	Zero   [8]int8
+}
+
+type sockaddrInet6 struct {
+	Len      uint8
+	Family   uint8
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+const (
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
+
+	sizeofSockaddrInet  = 0x10
+	sizeofSockaddrInet6 = 0x1c
+)
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_386.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_386.go
index 1c83636..3ec8d42 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_386.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_386.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_openbsd.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x18
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -50,9 +42,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_amd64.go
index a6c0bf4..ea0ee00 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_amd64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_amd64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_openbsd.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x18
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint64
@@ -52,9 +44,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x30
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm.go
index 1c83636..3ec8d42 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_openbsd.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x18
-
-	sysSOCK_RAW = 0x3
-)
-
 type iovec struct {
 	Base *byte
 	Len  uint32
@@ -50,9 +42,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x8
-	sizeofMsghdr  = 0x1c
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x8
+	sizeofMsghdr = 0x1c
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x1c
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm64.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm64.go
new file mode 100644
index 0000000..ea0ee00
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm64.go
@@ -0,0 +1,52 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_openbsd.go
+
+package socket
+
+type iovec struct {
+	Base *byte
+	Len  uint64
+}
+
+type msghdr struct {
+	Name       *byte
+	Namelen    uint32
+	Pad_cgo_0  [4]byte
+	Iov        *iovec
+	Iovlen     uint32
+	Pad_cgo_1  [4]byte
+	Control    *byte
+	Controllen uint32
+	Flags      int32
+}
+
+type cmsghdr struct {
+	Len   uint32
+	Level int32
+	Type  int32
+}
+
+type sockaddrInet struct {
+	Len    uint8
+	Family uint8
+	Port   uint16
+	Addr   [4]byte /* in_addr */
+	Zero   [8]int8
+}
+
+type sockaddrInet6 struct {
+	Len      uint8
+	Family   uint8
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+const (
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
+
+	sizeofSockaddrInet  = 0x10
+	sizeofSockaddrInet6 = 0x1c
+)
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_mips64.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_mips64.go
new file mode 100644
index 0000000..0112832
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_mips64.go
@@ -0,0 +1,50 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_openbsd.go
+
+package socket
+
+type iovec struct {
+	Base *byte
+	Len  uint64
+}
+
+type msghdr struct {
+	Name       *byte
+	Namelen    uint32
+	Iov        *iovec
+	Iovlen     uint32
+	Control    *byte
+	Controllen uint32
+	Flags      int32
+}
+
+type cmsghdr struct {
+	Len   uint32
+	Level int32
+	Type  int32
+}
+
+type sockaddrInet struct {
+	Len    uint8
+	Family uint8
+	Port   uint16
+	Addr   [4]byte /* in_addr */
+	Zero   [8]int8
+}
+
+type sockaddrInet6 struct {
+	Len      uint8
+	Family   uint8
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+const (
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
+
+	sizeofSockaddrInet  = 0x10
+	sizeofSockaddrInet6 = 0x1c
+)
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_solaris_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_solaris_amd64.go
index 327c632..48b2b59 100644
--- a/vendor/golang.org/x/net/internal/socket/zsys_solaris_amd64.go
+++ b/vendor/golang.org/x/net/internal/socket/zsys_solaris_amd64.go
@@ -1,16 +1,8 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_solaris.go
 
 package socket
 
-const (
-	sysAF_UNSPEC = 0x0
-	sysAF_INET   = 0x2
-	sysAF_INET6  = 0x1a
-
-	sysSOCK_RAW = 0x4
-)
-
 type iovec struct {
 	Base *int8
 	Len  uint64
@@ -51,9 +43,8 @@ type sockaddrInet6 struct {
 }
 
 const (
-	sizeofIovec   = 0x10
-	sizeofMsghdr  = 0x30
-	sizeofCmsghdr = 0xc
+	sizeofIovec  = 0x10
+	sizeofMsghdr = 0x30
 
 	sizeofSockaddrInet  = 0x10
 	sizeofSockaddrInet6 = 0x20
diff --git a/vendor/golang.org/x/net/internal/socket/zsys_zos_s390x.go b/vendor/golang.org/x/net/internal/socket/zsys_zos_s390x.go
new file mode 100644
index 0000000..514ca37
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/zsys_zos_s390x.go
@@ -0,0 +1,32 @@
+// Copyright 2020 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 socket
+
+type iovec struct {
+	Base *byte
+	Len  uint64
+}
+
+type msghdr struct {
+	Name       *byte
+	Iov        *iovec
+	Control    *byte
+	Flags      int32
+	Namelen    uint32
+	Iovlen     int32
+	Controllen uint32
+}
+
+type cmsghdr struct {
+	Len   int32
+	Level int32
+	Type  int32
+}
+
+const (
+	sizeofCmsghdr       = 12
+	sizeofSockaddrInet  = 16
+	sizeofSockaddrInet6 = 28
+)
diff --git a/vendor/golang.org/x/net/ipv4/batch.go b/vendor/golang.org/x/net/ipv4/batch.go
index b445499..1a3a4fc 100644
--- a/vendor/golang.org/x/net/ipv4/batch.go
+++ b/vendor/golang.org/x/net/ipv4/batch.go
@@ -2,14 +2,11 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build go1.9
-
 package ipv4
 
 import (
 	"net"
 	"runtime"
-	"syscall"
 
 	"golang.org/x/net/internal/socket"
 )
@@ -76,7 +73,7 @@ type Message = socket.Message
 // headers.
 func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
@@ -92,6 +89,9 @@ func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) {
 			n = 0
 			err = &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
 		}
+		if compatFreeBSD32 && ms[0].NN > 0 {
+			adjustFreeBSD32(&ms[0])
+		}
 		return n, err
 	}
 }
@@ -107,7 +107,7 @@ func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) {
 // On other platforms, this method will write only a single message.
 func (c *payloadHandler) WriteBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
@@ -139,7 +139,7 @@ func (c *payloadHandler) WriteBatch(ms []Message, flags int) (int, error) {
 // On other platforms, this method will read only a single message.
 func (c *packetHandler) ReadBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
@@ -155,6 +155,9 @@ func (c *packetHandler) ReadBatch(ms []Message, flags int) (int, error) {
 			n = 0
 			err = &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
 		}
+		if compatFreeBSD32 && ms[0].NN > 0 {
+			adjustFreeBSD32(&ms[0])
+		}
 		return n, err
 	}
 }
@@ -170,7 +173,7 @@ func (c *packetHandler) ReadBatch(ms []Message, flags int) (int, error) {
 // On other platforms, this method will write only a single message.
 func (c *packetHandler) WriteBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
diff --git a/vendor/golang.org/x/net/ipv4/control_bsd.go b/vendor/golang.org/x/net/ipv4/control_bsd.go
index 77e7ad5..69c4f55 100644
--- a/vendor/golang.org/x/net/ipv4/control_bsd.go
+++ b/vendor/golang.org/x/net/ipv4/control_bsd.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.
 
-// +build darwin dragonfly freebsd netbsd openbsd
+// +build aix darwin dragonfly freebsd netbsd openbsd
 
 package ipv4
 
@@ -35,6 +35,7 @@ func marshalInterface(b []byte, cm *ControlMessage) []byte {
 }
 
 func parseInterface(cm *ControlMessage, b []byte) {
-	sadl := (*syscall.SockaddrDatalink)(unsafe.Pointer(&b[0]))
+	var sadl syscall.SockaddrDatalink
+	copy((*[unsafe.Sizeof(sadl)]byte)(unsafe.Pointer(&sadl))[:], b)
 	cm.IfIndex = int(sadl.Index)
 }
diff --git a/vendor/golang.org/x/net/ipv4/control_stub.go b/vendor/golang.org/x/net/ipv4/control_stub.go
index 5a2f7d8..9d82534 100644
--- a/vendor/golang.org/x/net/ipv4/control_stub.go
+++ b/vendor/golang.org/x/net/ipv4/control_stub.go
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
 
 package ipv4
 
 import "golang.org/x/net/internal/socket"
 
 func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv4/control_unix.go b/vendor/golang.org/x/net/ipv4/control_unix.go
index e1ae816..b27fa49 100644
--- a/vendor/golang.org/x/net/ipv4/control_unix.go
+++ b/vendor/golang.org/x/net/ipv4/control_unix.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.
 
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
 
 package ipv4
 
diff --git a/vendor/golang.org/x/net/ipv4/control_windows.go b/vendor/golang.org/x/net/ipv4/control_windows.go
index ce55c66..82c6306 100644
--- a/vendor/golang.org/x/net/ipv4/control_windows.go
+++ b/vendor/golang.org/x/net/ipv4/control_windows.go
@@ -4,13 +4,9 @@
 
 package ipv4
 
-import (
-	"syscall"
-
-	"golang.org/x/net/internal/socket"
-)
+import "golang.org/x/net/internal/socket"
 
 func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error {
 	// TODO(mikio): implement this
-	return syscall.EWINDOWS
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv4/control_zos.go b/vendor/golang.org/x/net/ipv4/control_zos.go
new file mode 100644
index 0000000..0442000
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/control_zos.go
@@ -0,0 +1,86 @@
+// Copyright 2020 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 ipv4
+
+import (
+	"net"
+	"unsafe"
+
+	"golang.org/x/net/internal/iana"
+	"golang.org/x/net/internal/socket"
+)
+
+func marshalPacketInfo(b []byte, cm *ControlMessage) []byte {
+	m := socket.ControlMessage(b)
+	m.MarshalHeader(iana.ProtocolIP, sysIP_PKTINFO, sizeofInetPktinfo)
+	if cm != nil {
+		pi := (*inetPktinfo)(unsafe.Pointer(&m.Data(sizeofInetPktinfo)[0]))
+		if ip := cm.Src.To4(); ip != nil {
+			copy(pi.Addr[:], ip)
+		}
+		if cm.IfIndex > 0 {
+			pi.setIfindex(cm.IfIndex)
+		}
+	}
+	return m.Next(sizeofInetPktinfo)
+}
+
+func parsePacketInfo(cm *ControlMessage, b []byte) {
+	pi := (*inetPktinfo)(unsafe.Pointer(&b[0]))
+	cm.IfIndex = int(pi.Ifindex)
+	if len(cm.Dst) < net.IPv4len {
+		cm.Dst = make(net.IP, net.IPv4len)
+	}
+	copy(cm.Dst, pi.Addr[:])
+}
+
+func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error {
+	opt.Lock()
+	defer opt.Unlock()
+	if so, ok := sockOpts[ssoReceiveTTL]; ok && cf&FlagTTL != 0 {
+		if err := so.SetInt(c, boolint(on)); err != nil {
+			return err
+		}
+		if on {
+			opt.set(FlagTTL)
+		} else {
+			opt.clear(FlagTTL)
+		}
+	}
+	if so, ok := sockOpts[ssoPacketInfo]; ok {
+		if cf&(FlagSrc|FlagDst|FlagInterface) != 0 {
+			if err := so.SetInt(c, boolint(on)); err != nil {
+				return err
+			}
+			if on {
+				opt.set(cf & (FlagSrc | FlagDst | FlagInterface))
+			} else {
+				opt.clear(cf & (FlagSrc | FlagDst | FlagInterface))
+			}
+		}
+	} else {
+		if so, ok := sockOpts[ssoReceiveDst]; ok && cf&FlagDst != 0 {
+			if err := so.SetInt(c, boolint(on)); err != nil {
+				return err
+			}
+			if on {
+				opt.set(FlagDst)
+			} else {
+				opt.clear(FlagDst)
+			}
+		}
+		if so, ok := sockOpts[ssoReceiveInterface]; ok && cf&FlagInterface != 0 {
+			if err := so.SetInt(c, boolint(on)); err != nil {
+				return err
+			}
+			if on {
+				opt.set(FlagInterface)
+			} else {
+				opt.clear(FlagInterface)
+			}
+		}
+	}
+	return nil
+}
diff --git a/vendor/golang.org/x/net/ipv4/defs_darwin.go b/vendor/golang.org/x/net/ipv4/defs_darwin.go
deleted file mode 100644
index c8f2e05..0000000
--- a/vendor/golang.org/x/net/ipv4/defs_darwin.go
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-
-package ipv4
-
-/*
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysIP_OPTIONS     = C.IP_OPTIONS
-	sysIP_HDRINCL     = C.IP_HDRINCL
-	sysIP_TOS         = C.IP_TOS
-	sysIP_TTL         = C.IP_TTL
-	sysIP_RECVOPTS    = C.IP_RECVOPTS
-	sysIP_RECVRETOPTS = C.IP_RECVRETOPTS
-	sysIP_RECVDSTADDR = C.IP_RECVDSTADDR
-	sysIP_RETOPTS     = C.IP_RETOPTS
-	sysIP_RECVIF      = C.IP_RECVIF
-	sysIP_STRIPHDR    = C.IP_STRIPHDR
-	sysIP_RECVTTL     = C.IP_RECVTTL
-	sysIP_BOUND_IF    = C.IP_BOUND_IF
-	sysIP_PKTINFO     = C.IP_PKTINFO
-	sysIP_RECVPKTINFO = C.IP_RECVPKTINFO
-
-	sysIP_MULTICAST_IF           = C.IP_MULTICAST_IF
-	sysIP_MULTICAST_TTL          = C.IP_MULTICAST_TTL
-	sysIP_MULTICAST_LOOP         = C.IP_MULTICAST_LOOP
-	sysIP_ADD_MEMBERSHIP         = C.IP_ADD_MEMBERSHIP
-	sysIP_DROP_MEMBERSHIP        = C.IP_DROP_MEMBERSHIP
-	sysIP_MULTICAST_VIF          = C.IP_MULTICAST_VIF
-	sysIP_MULTICAST_IFINDEX      = C.IP_MULTICAST_IFINDEX
-	sysIP_ADD_SOURCE_MEMBERSHIP  = C.IP_ADD_SOURCE_MEMBERSHIP
-	sysIP_DROP_SOURCE_MEMBERSHIP = C.IP_DROP_SOURCE_MEMBERSHIP
-	sysIP_BLOCK_SOURCE           = C.IP_BLOCK_SOURCE
-	sysIP_UNBLOCK_SOURCE         = C.IP_UNBLOCK_SOURCE
-	sysMCAST_JOIN_GROUP          = C.MCAST_JOIN_GROUP
-	sysMCAST_LEAVE_GROUP         = C.MCAST_LEAVE_GROUP
-	sysMCAST_JOIN_SOURCE_GROUP   = C.MCAST_JOIN_SOURCE_GROUP
-	sysMCAST_LEAVE_SOURCE_GROUP  = C.MCAST_LEAVE_SOURCE_GROUP
-	sysMCAST_BLOCK_SOURCE        = C.MCAST_BLOCK_SOURCE
-	sysMCAST_UNBLOCK_SOURCE      = C.MCAST_UNBLOCK_SOURCE
-
-	sizeofSockaddrStorage = C.sizeof_struct_sockaddr_storage
-	sizeofSockaddrInet    = C.sizeof_struct_sockaddr_in
-	sizeofInetPktinfo     = C.sizeof_struct_in_pktinfo
-
-	sizeofIPMreq         = C.sizeof_struct_ip_mreq
-	sizeofIPMreqn        = C.sizeof_struct_ip_mreqn
-	sizeofIPMreqSource   = C.sizeof_struct_ip_mreq_source
-	sizeofGroupReq       = C.sizeof_struct_group_req
-	sizeofGroupSourceReq = C.sizeof_struct_group_source_req
-)
-
-type sockaddrStorage C.struct_sockaddr_storage
-
-type sockaddrInet C.struct_sockaddr_in
-
-type inetPktinfo C.struct_in_pktinfo
-
-type ipMreq C.struct_ip_mreq
-
-type ipMreqn C.struct_ip_mreqn
-
-type ipMreqSource C.struct_ip_mreq_source
-
-type groupReq C.struct_group_req
-
-type groupSourceReq C.struct_group_source_req
diff --git a/vendor/golang.org/x/net/ipv4/defs_dragonfly.go b/vendor/golang.org/x/net/ipv4/defs_dragonfly.go
deleted file mode 100644
index f30544e..0000000
--- a/vendor/golang.org/x/net/ipv4/defs_dragonfly.go
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-
-package ipv4
-
-/*
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysIP_OPTIONS     = C.IP_OPTIONS
-	sysIP_HDRINCL     = C.IP_HDRINCL
-	sysIP_TOS         = C.IP_TOS
-	sysIP_TTL         = C.IP_TTL
-	sysIP_RECVOPTS    = C.IP_RECVOPTS
-	sysIP_RECVRETOPTS = C.IP_RECVRETOPTS
-	sysIP_RECVDSTADDR = C.IP_RECVDSTADDR
-	sysIP_RETOPTS     = C.IP_RETOPTS
-	sysIP_RECVIF      = C.IP_RECVIF
-	sysIP_RECVTTL     = C.IP_RECVTTL
-
-	sysIP_MULTICAST_IF    = C.IP_MULTICAST_IF
-	sysIP_MULTICAST_TTL   = C.IP_MULTICAST_TTL
-	sysIP_MULTICAST_LOOP  = C.IP_MULTICAST_LOOP
-	sysIP_MULTICAST_VIF   = C.IP_MULTICAST_VIF
-	sysIP_ADD_MEMBERSHIP  = C.IP_ADD_MEMBERSHIP
-	sysIP_DROP_MEMBERSHIP = C.IP_DROP_MEMBERSHIP
-
-	sizeofIPMreq = C.sizeof_struct_ip_mreq
-)
-
-type ipMreq C.struct_ip_mreq
diff --git a/vendor/golang.org/x/net/ipv4/defs_freebsd.go b/vendor/golang.org/x/net/ipv4/defs_freebsd.go
deleted file mode 100644
index 4dd57d8..0000000
--- a/vendor/golang.org/x/net/ipv4/defs_freebsd.go
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-
-package ipv4
-
-/*
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysIP_OPTIONS     = C.IP_OPTIONS
-	sysIP_HDRINCL     = C.IP_HDRINCL
-	sysIP_TOS         = C.IP_TOS
-	sysIP_TTL         = C.IP_TTL
-	sysIP_RECVOPTS    = C.IP_RECVOPTS
-	sysIP_RECVRETOPTS = C.IP_RECVRETOPTS
-	sysIP_RECVDSTADDR = C.IP_RECVDSTADDR
-	sysIP_SENDSRCADDR = C.IP_SENDSRCADDR
-	sysIP_RETOPTS     = C.IP_RETOPTS
-	sysIP_RECVIF      = C.IP_RECVIF
-	sysIP_ONESBCAST   = C.IP_ONESBCAST
-	sysIP_BINDANY     = C.IP_BINDANY
-	sysIP_RECVTTL     = C.IP_RECVTTL
-	sysIP_MINTTL      = C.IP_MINTTL
-	sysIP_DONTFRAG    = C.IP_DONTFRAG
-	sysIP_RECVTOS     = C.IP_RECVTOS
-
-	sysIP_MULTICAST_IF           = C.IP_MULTICAST_IF
-	sysIP_MULTICAST_TTL          = C.IP_MULTICAST_TTL
-	sysIP_MULTICAST_LOOP         = C.IP_MULTICAST_LOOP
-	sysIP_ADD_MEMBERSHIP         = C.IP_ADD_MEMBERSHIP
-	sysIP_DROP_MEMBERSHIP        = C.IP_DROP_MEMBERSHIP
-	sysIP_MULTICAST_VIF          = C.IP_MULTICAST_VIF
-	sysIP_ADD_SOURCE_MEMBERSHIP  = C.IP_ADD_SOURCE_MEMBERSHIP
-	sysIP_DROP_SOURCE_MEMBERSHIP = C.IP_DROP_SOURCE_MEMBERSHIP
-	sysIP_BLOCK_SOURCE           = C.IP_BLOCK_SOURCE
-	sysIP_UNBLOCK_SOURCE         = C.IP_UNBLOCK_SOURCE
-	sysMCAST_JOIN_GROUP          = C.MCAST_JOIN_GROUP
-	sysMCAST_LEAVE_GROUP         = C.MCAST_LEAVE_GROUP
-	sysMCAST_JOIN_SOURCE_GROUP   = C.MCAST_JOIN_SOURCE_GROUP
-	sysMCAST_LEAVE_SOURCE_GROUP  = C.MCAST_LEAVE_SOURCE_GROUP
-	sysMCAST_BLOCK_SOURCE        = C.MCAST_BLOCK_SOURCE
-	sysMCAST_UNBLOCK_SOURCE      = C.MCAST_UNBLOCK_SOURCE
-
-	sizeofSockaddrStorage = C.sizeof_struct_sockaddr_storage
-	sizeofSockaddrInet    = C.sizeof_struct_sockaddr_in
-
-	sizeofIPMreq         = C.sizeof_struct_ip_mreq
-	sizeofIPMreqn        = C.sizeof_struct_ip_mreqn
-	sizeofIPMreqSource   = C.sizeof_struct_ip_mreq_source
-	sizeofGroupReq       = C.sizeof_struct_group_req
-	sizeofGroupSourceReq = C.sizeof_struct_group_source_req
-)
-
-type sockaddrStorage C.struct_sockaddr_storage
-
-type sockaddrInet C.struct_sockaddr_in
-
-type ipMreq C.struct_ip_mreq
-
-type ipMreqn C.struct_ip_mreqn
-
-type ipMreqSource C.struct_ip_mreq_source
-
-type groupReq C.struct_group_req
-
-type groupSourceReq C.struct_group_source_req
diff --git a/vendor/golang.org/x/net/ipv4/defs_linux.go b/vendor/golang.org/x/net/ipv4/defs_linux.go
deleted file mode 100644
index beb1107..0000000
--- a/vendor/golang.org/x/net/ipv4/defs_linux.go
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-
-package ipv4
-
-/*
-#include <time.h>
-
-#include <linux/errqueue.h>
-#include <linux/icmp.h>
-#include <linux/in.h>
-#include <linux/filter.h>
-#include <sys/socket.h>
-*/
-import "C"
-
-const (
-	sysIP_TOS             = C.IP_TOS
-	sysIP_TTL             = C.IP_TTL
-	sysIP_HDRINCL         = C.IP_HDRINCL
-	sysIP_OPTIONS         = C.IP_OPTIONS
-	sysIP_ROUTER_ALERT    = C.IP_ROUTER_ALERT
-	sysIP_RECVOPTS        = C.IP_RECVOPTS
-	sysIP_RETOPTS         = C.IP_RETOPTS
-	sysIP_PKTINFO         = C.IP_PKTINFO
-	sysIP_PKTOPTIONS      = C.IP_PKTOPTIONS
-	sysIP_MTU_DISCOVER    = C.IP_MTU_DISCOVER
-	sysIP_RECVERR         = C.IP_RECVERR
-	sysIP_RECVTTL         = C.IP_RECVTTL
-	sysIP_RECVTOS         = C.IP_RECVTOS
-	sysIP_MTU             = C.IP_MTU
-	sysIP_FREEBIND        = C.IP_FREEBIND
-	sysIP_TRANSPARENT     = C.IP_TRANSPARENT
-	sysIP_RECVRETOPTS     = C.IP_RECVRETOPTS
-	sysIP_ORIGDSTADDR     = C.IP_ORIGDSTADDR
-	sysIP_RECVORIGDSTADDR = C.IP_RECVORIGDSTADDR
-	sysIP_MINTTL          = C.IP_MINTTL
-	sysIP_NODEFRAG        = C.IP_NODEFRAG
-	sysIP_UNICAST_IF      = C.IP_UNICAST_IF
-
-	sysIP_MULTICAST_IF           = C.IP_MULTICAST_IF
-	sysIP_MULTICAST_TTL          = C.IP_MULTICAST_TTL
-	sysIP_MULTICAST_LOOP         = C.IP_MULTICAST_LOOP
-	sysIP_ADD_MEMBERSHIP         = C.IP_ADD_MEMBERSHIP
-	sysIP_DROP_MEMBERSHIP        = C.IP_DROP_MEMBERSHIP
-	sysIP_UNBLOCK_SOURCE         = C.IP_UNBLOCK_SOURCE
-	sysIP_BLOCK_SOURCE           = C.IP_BLOCK_SOURCE
-	sysIP_ADD_SOURCE_MEMBERSHIP  = C.IP_ADD_SOURCE_MEMBERSHIP
-	sysIP_DROP_SOURCE_MEMBERSHIP = C.IP_DROP_SOURCE_MEMBERSHIP
-	sysIP_MSFILTER               = C.IP_MSFILTER
-	sysMCAST_JOIN_GROUP          = C.MCAST_JOIN_GROUP
-	sysMCAST_LEAVE_GROUP         = C.MCAST_LEAVE_GROUP
-	sysMCAST_JOIN_SOURCE_GROUP   = C.MCAST_JOIN_SOURCE_GROUP
-	sysMCAST_LEAVE_SOURCE_GROUP  = C.MCAST_LEAVE_SOURCE_GROUP
-	sysMCAST_BLOCK_SOURCE        = C.MCAST_BLOCK_SOURCE
-	sysMCAST_UNBLOCK_SOURCE      = C.MCAST_UNBLOCK_SOURCE
-	sysMCAST_MSFILTER            = C.MCAST_MSFILTER
-	sysIP_MULTICAST_ALL          = C.IP_MULTICAST_ALL
-
-	//sysIP_PMTUDISC_DONT      = C.IP_PMTUDISC_DONT
-	//sysIP_PMTUDISC_WANT      = C.IP_PMTUDISC_WANT
-	//sysIP_PMTUDISC_DO        = C.IP_PMTUDISC_DO
-	//sysIP_PMTUDISC_PROBE     = C.IP_PMTUDISC_PROBE
-	//sysIP_PMTUDISC_INTERFACE = C.IP_PMTUDISC_INTERFACE
-	//sysIP_PMTUDISC_OMIT      = C.IP_PMTUDISC_OMIT
-
-	sysICMP_FILTER = C.ICMP_FILTER
-
-	sysSO_EE_ORIGIN_NONE         = C.SO_EE_ORIGIN_NONE
-	sysSO_EE_ORIGIN_LOCAL        = C.SO_EE_ORIGIN_LOCAL
-	sysSO_EE_ORIGIN_ICMP         = C.SO_EE_ORIGIN_ICMP
-	sysSO_EE_ORIGIN_ICMP6        = C.SO_EE_ORIGIN_ICMP6
-	sysSO_EE_ORIGIN_TXSTATUS     = C.SO_EE_ORIGIN_TXSTATUS
-	sysSO_EE_ORIGIN_TIMESTAMPING = C.SO_EE_ORIGIN_TIMESTAMPING
-
-	sysSOL_SOCKET       = C.SOL_SOCKET
-	sysSO_ATTACH_FILTER = C.SO_ATTACH_FILTER
-
-	sizeofKernelSockaddrStorage = C.sizeof_struct___kernel_sockaddr_storage
-	sizeofSockaddrInet          = C.sizeof_struct_sockaddr_in
-	sizeofInetPktinfo           = C.sizeof_struct_in_pktinfo
-	sizeofSockExtendedErr       = C.sizeof_struct_sock_extended_err
-
-	sizeofIPMreq         = C.sizeof_struct_ip_mreq
-	sizeofIPMreqn        = C.sizeof_struct_ip_mreqn
-	sizeofIPMreqSource   = C.sizeof_struct_ip_mreq_source
-	sizeofGroupReq       = C.sizeof_struct_group_req
-	sizeofGroupSourceReq = C.sizeof_struct_group_source_req
-
-	sizeofICMPFilter = C.sizeof_struct_icmp_filter
-
-	sizeofSockFprog = C.sizeof_struct_sock_fprog
-)
-
-type kernelSockaddrStorage C.struct___kernel_sockaddr_storage
-
-type sockaddrInet C.struct_sockaddr_in
-
-type inetPktinfo C.struct_in_pktinfo
-
-type sockExtendedErr C.struct_sock_extended_err
-
-type ipMreq C.struct_ip_mreq
-
-type ipMreqn C.struct_ip_mreqn
-
-type ipMreqSource C.struct_ip_mreq_source
-
-type groupReq C.struct_group_req
-
-type groupSourceReq C.struct_group_source_req
-
-type icmpFilter C.struct_icmp_filter
-
-type sockFProg C.struct_sock_fprog
-
-type sockFilter C.struct_sock_filter
diff --git a/vendor/golang.org/x/net/ipv4/defs_netbsd.go b/vendor/golang.org/x/net/ipv4/defs_netbsd.go
deleted file mode 100644
index 8f8af1b..0000000
--- a/vendor/golang.org/x/net/ipv4/defs_netbsd.go
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-
-package ipv4
-
-/*
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysIP_OPTIONS     = C.IP_OPTIONS
-	sysIP_HDRINCL     = C.IP_HDRINCL
-	sysIP_TOS         = C.IP_TOS
-	sysIP_TTL         = C.IP_TTL
-	sysIP_RECVOPTS    = C.IP_RECVOPTS
-	sysIP_RECVRETOPTS = C.IP_RECVRETOPTS
-	sysIP_RECVDSTADDR = C.IP_RECVDSTADDR
-	sysIP_RETOPTS     = C.IP_RETOPTS
-	sysIP_RECVIF      = C.IP_RECVIF
-	sysIP_RECVTTL     = C.IP_RECVTTL
-
-	sysIP_MULTICAST_IF    = C.IP_MULTICAST_IF
-	sysIP_MULTICAST_TTL   = C.IP_MULTICAST_TTL
-	sysIP_MULTICAST_LOOP  = C.IP_MULTICAST_LOOP
-	sysIP_ADD_MEMBERSHIP  = C.IP_ADD_MEMBERSHIP
-	sysIP_DROP_MEMBERSHIP = C.IP_DROP_MEMBERSHIP
-
-	sizeofIPMreq = C.sizeof_struct_ip_mreq
-)
-
-type ipMreq C.struct_ip_mreq
diff --git a/vendor/golang.org/x/net/ipv4/defs_openbsd.go b/vendor/golang.org/x/net/ipv4/defs_openbsd.go
deleted file mode 100644
index 8f8af1b..0000000
--- a/vendor/golang.org/x/net/ipv4/defs_openbsd.go
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-
-package ipv4
-
-/*
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysIP_OPTIONS     = C.IP_OPTIONS
-	sysIP_HDRINCL     = C.IP_HDRINCL
-	sysIP_TOS         = C.IP_TOS
-	sysIP_TTL         = C.IP_TTL
-	sysIP_RECVOPTS    = C.IP_RECVOPTS
-	sysIP_RECVRETOPTS = C.IP_RECVRETOPTS
-	sysIP_RECVDSTADDR = C.IP_RECVDSTADDR
-	sysIP_RETOPTS     = C.IP_RETOPTS
-	sysIP_RECVIF      = C.IP_RECVIF
-	sysIP_RECVTTL     = C.IP_RECVTTL
-
-	sysIP_MULTICAST_IF    = C.IP_MULTICAST_IF
-	sysIP_MULTICAST_TTL   = C.IP_MULTICAST_TTL
-	sysIP_MULTICAST_LOOP  = C.IP_MULTICAST_LOOP
-	sysIP_ADD_MEMBERSHIP  = C.IP_ADD_MEMBERSHIP
-	sysIP_DROP_MEMBERSHIP = C.IP_DROP_MEMBERSHIP
-
-	sizeofIPMreq = C.sizeof_struct_ip_mreq
-)
-
-type ipMreq C.struct_ip_mreq
diff --git a/vendor/golang.org/x/net/ipv4/defs_solaris.go b/vendor/golang.org/x/net/ipv4/defs_solaris.go
deleted file mode 100644
index aeb33e9..0000000
--- a/vendor/golang.org/x/net/ipv4/defs_solaris.go
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in_addr [4]byte /* in_addr */
-
-package ipv4
-
-/*
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-*/
-import "C"
-
-const (
-	sysIP_OPTIONS     = C.IP_OPTIONS
-	sysIP_HDRINCL     = C.IP_HDRINCL
-	sysIP_TOS         = C.IP_TOS
-	sysIP_TTL         = C.IP_TTL
-	sysIP_RECVOPTS    = C.IP_RECVOPTS
-	sysIP_RECVRETOPTS = C.IP_RECVRETOPTS
-	sysIP_RECVDSTADDR = C.IP_RECVDSTADDR
-	sysIP_RETOPTS     = C.IP_RETOPTS
-	sysIP_RECVIF      = C.IP_RECVIF
-	sysIP_RECVSLLA    = C.IP_RECVSLLA
-	sysIP_RECVTTL     = C.IP_RECVTTL
-
-	sysIP_MULTICAST_IF           = C.IP_MULTICAST_IF
-	sysIP_MULTICAST_TTL          = C.IP_MULTICAST_TTL
-	sysIP_MULTICAST_LOOP         = C.IP_MULTICAST_LOOP
-	sysIP_ADD_MEMBERSHIP         = C.IP_ADD_MEMBERSHIP
-	sysIP_DROP_MEMBERSHIP        = C.IP_DROP_MEMBERSHIP
-	sysIP_BLOCK_SOURCE           = C.IP_BLOCK_SOURCE
-	sysIP_UNBLOCK_SOURCE         = C.IP_UNBLOCK_SOURCE
-	sysIP_ADD_SOURCE_MEMBERSHIP  = C.IP_ADD_SOURCE_MEMBERSHIP
-	sysIP_DROP_SOURCE_MEMBERSHIP = C.IP_DROP_SOURCE_MEMBERSHIP
-	sysIP_NEXTHOP                = C.IP_NEXTHOP
-
-	sysIP_PKTINFO     = C.IP_PKTINFO
-	sysIP_RECVPKTINFO = C.IP_RECVPKTINFO
-	sysIP_DONTFRAG    = C.IP_DONTFRAG
-
-	sysIP_BOUND_IF      = C.IP_BOUND_IF
-	sysIP_UNSPEC_SRC    = C.IP_UNSPEC_SRC
-	sysIP_BROADCAST_TTL = C.IP_BROADCAST_TTL
-	sysIP_DHCPINIT_IF   = C.IP_DHCPINIT_IF
-
-	sysIP_REUSEADDR = C.IP_REUSEADDR
-	sysIP_DONTROUTE = C.IP_DONTROUTE
-	sysIP_BROADCAST = C.IP_BROADCAST
-
-	sysMCAST_JOIN_GROUP         = C.MCAST_JOIN_GROUP
-	sysMCAST_LEAVE_GROUP        = C.MCAST_LEAVE_GROUP
-	sysMCAST_BLOCK_SOURCE       = C.MCAST_BLOCK_SOURCE
-	sysMCAST_UNBLOCK_SOURCE     = C.MCAST_UNBLOCK_SOURCE
-	sysMCAST_JOIN_SOURCE_GROUP  = C.MCAST_JOIN_SOURCE_GROUP
-	sysMCAST_LEAVE_SOURCE_GROUP = C.MCAST_LEAVE_SOURCE_GROUP
-
-	sizeofSockaddrStorage = C.sizeof_struct_sockaddr_storage
-	sizeofSockaddrInet    = C.sizeof_struct_sockaddr_in
-	sizeofInetPktinfo     = C.sizeof_struct_in_pktinfo
-
-	sizeofIPMreq         = C.sizeof_struct_ip_mreq
-	sizeofIPMreqSource   = C.sizeof_struct_ip_mreq_source
-	sizeofGroupReq       = C.sizeof_struct_group_req
-	sizeofGroupSourceReq = C.sizeof_struct_group_source_req
-)
-
-type sockaddrStorage C.struct_sockaddr_storage
-
-type sockaddrInet C.struct_sockaddr_in
-
-type inetPktinfo C.struct_in_pktinfo
-
-type ipMreq C.struct_ip_mreq
-
-type ipMreqSource C.struct_ip_mreq_source
-
-type groupReq C.struct_group_req
-
-type groupSourceReq C.struct_group_source_req
diff --git a/vendor/golang.org/x/net/ipv4/dgramopt.go b/vendor/golang.org/x/net/ipv4/dgramopt.go
index 54d77d5..c191c22 100644
--- a/vendor/golang.org/x/net/ipv4/dgramopt.go
+++ b/vendor/golang.org/x/net/ipv4/dgramopt.go
@@ -6,7 +6,6 @@ package ipv4
 
 import (
 	"net"
-	"syscall"
 
 	"golang.org/x/net/bpf"
 )
@@ -15,11 +14,11 @@ import (
 // multicast packets.
 func (c *dgramOpt) MulticastTTL() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastTTL]
 	if !ok {
-		return 0, errOpNoSupport
+		return 0, errNotImplemented
 	}
 	return so.GetInt(c.Conn)
 }
@@ -28,11 +27,11 @@ func (c *dgramOpt) MulticastTTL() (int, error) {
 // outgoing multicast packets.
 func (c *dgramOpt) SetMulticastTTL(ttl int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastTTL]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.SetInt(c.Conn, ttl)
 }
@@ -41,11 +40,11 @@ func (c *dgramOpt) SetMulticastTTL(ttl int) error {
 // packet transmissions.
 func (c *dgramOpt) MulticastInterface() (*net.Interface, error) {
 	if !c.ok() {
-		return nil, syscall.EINVAL
+		return nil, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastInterface]
 	if !ok {
-		return nil, errOpNoSupport
+		return nil, errNotImplemented
 	}
 	return so.getMulticastInterface(c.Conn)
 }
@@ -54,11 +53,11 @@ func (c *dgramOpt) MulticastInterface() (*net.Interface, error) {
 // multicast packet transmissions.
 func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastInterface]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.setMulticastInterface(c.Conn, ifi)
 }
@@ -67,11 +66,11 @@ func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error {
 // should be copied and send back to the originator.
 func (c *dgramOpt) MulticastLoopback() (bool, error) {
 	if !c.ok() {
-		return false, syscall.EINVAL
+		return false, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastLoopback]
 	if !ok {
-		return false, errOpNoSupport
+		return false, errNotImplemented
 	}
 	on, err := so.GetInt(c.Conn)
 	if err != nil {
@@ -84,11 +83,11 @@ func (c *dgramOpt) MulticastLoopback() (bool, error) {
 // should be copied and send back to the originator.
 func (c *dgramOpt) SetMulticastLoopback(on bool) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastLoopback]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.SetInt(c.Conn, boolint(on))
 }
@@ -104,11 +103,11 @@ func (c *dgramOpt) SetMulticastLoopback(on bool) error {
 // configuration.
 func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoJoinGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP4(group)
 	if grp == nil {
@@ -122,11 +121,11 @@ func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error {
 // source-specific group.
 func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoLeaveGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP4(group)
 	if grp == nil {
@@ -143,11 +142,11 @@ func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error {
 // routing configuration.
 func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoJoinSourceGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP4(group)
 	if grp == nil {
@@ -164,11 +163,11 @@ func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net
 // interface ifi.
 func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoLeaveSourceGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP4(group)
 	if grp == nil {
@@ -186,11 +185,11 @@ func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source ne
 // ifi.
 func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoBlockSourceGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP4(group)
 	if grp == nil {
@@ -207,11 +206,11 @@ func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source
 // group by ExcludeSourceSpecificGroup again on the interface ifi.
 func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoUnblockSourceGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP4(group)
 	if grp == nil {
@@ -228,11 +227,11 @@ func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source
 // Currently only Linux supports this.
 func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) {
 	if !c.ok() {
-		return nil, syscall.EINVAL
+		return nil, errInvalidConn
 	}
 	so, ok := sockOpts[ssoICMPFilter]
 	if !ok {
-		return nil, errOpNoSupport
+		return nil, errNotImplemented
 	}
 	return so.getICMPFilter(c.Conn)
 }
@@ -241,11 +240,11 @@ func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) {
 // Currently only Linux supports this.
 func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoICMPFilter]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.setICMPFilter(c.Conn, f)
 }
@@ -255,11 +254,11 @@ func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error {
 // Only supported on Linux.
 func (c *dgramOpt) SetBPF(filter []bpf.RawInstruction) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoAttachFilter]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.setBPF(c.Conn, filter)
 }
diff --git a/vendor/golang.org/x/net/ipv4/doc.go b/vendor/golang.org/x/net/ipv4/doc.go
index b43935a..2458349 100644
--- a/vendor/golang.org/x/net/ipv4/doc.go
+++ b/vendor/golang.org/x/net/ipv4/doc.go
@@ -55,7 +55,7 @@
 // Multicasting
 //
 // The options for multicasting are available for net.UDPConn and
-// net.IPconn which are created as network connections that use the
+// net.IPConn which are created as network connections that use the
 // IPv4 transport. A few network facilities must be prepared before
 // you begin multicasting, at a minimum joining network interfaces and
 // multicast groups.
@@ -209,7 +209,7 @@
 // LeaveSourceSpecificGroup for the operation known as "include" mode,
 //
 //	ssmgroup := net.UDPAddr{IP: net.IPv4(232, 7, 8, 9)}
-//	ssmsource := net.UDPAddr{IP: net.IPv4(192, 168, 0, 1)})
+//	ssmsource := net.UDPAddr{IP: net.IPv4(192, 168, 0, 1)}
 //	if err := p.JoinSourceSpecificGroup(en0, &ssmgroup, &ssmsource); err != nil {
 //		// error handling
 //	}
@@ -241,4 +241,4 @@
 // IncludeSourceSpecificGroup may return an error.
 package ipv4 // import "golang.org/x/net/ipv4"
 
-// BUG(mikio): This package is not implemented on NaCl and Plan 9.
+// BUG(mikio): This package is not implemented on JS, NaCl and Plan 9.
diff --git a/vendor/golang.org/x/net/ipv4/endpoint.go b/vendor/golang.org/x/net/ipv4/endpoint.go
index 2ab8773..4a6d7a8 100644
--- a/vendor/golang.org/x/net/ipv4/endpoint.go
+++ b/vendor/golang.org/x/net/ipv4/endpoint.go
@@ -6,7 +6,6 @@ package ipv4
 
 import (
 	"net"
-	"syscall"
 	"time"
 
 	"golang.org/x/net/internal/socket"
@@ -58,7 +57,7 @@ func (c *dgramOpt) ok() bool { return c != nil && c.Conn != nil }
 // SetControlMessage sets the per packet IP-level socket options.
 func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return setControlMessage(c.dgramOpt.Conn, &c.payloadHandler.rawOpt, cf, on)
 }
@@ -67,7 +66,7 @@ func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error {
 // endpoint.
 func (c *PacketConn) SetDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.PacketConn.SetDeadline(t)
 }
@@ -76,7 +75,7 @@ func (c *PacketConn) SetDeadline(t time.Time) error {
 // endpoint.
 func (c *PacketConn) SetReadDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.PacketConn.SetReadDeadline(t)
 }
@@ -85,7 +84,7 @@ func (c *PacketConn) SetReadDeadline(t time.Time) error {
 // endpoint.
 func (c *PacketConn) SetWriteDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.PacketConn.SetWriteDeadline(t)
 }
@@ -93,7 +92,7 @@ func (c *PacketConn) SetWriteDeadline(t time.Time) error {
 // Close closes the endpoint.
 func (c *PacketConn) Close() error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.PacketConn.Close()
 }
@@ -124,7 +123,7 @@ type RawConn struct {
 // SetControlMessage sets the per packet IP-level socket options.
 func (c *RawConn) SetControlMessage(cf ControlFlags, on bool) error {
 	if !c.packetHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return setControlMessage(c.dgramOpt.Conn, &c.packetHandler.rawOpt, cf, on)
 }
@@ -133,7 +132,7 @@ func (c *RawConn) SetControlMessage(cf ControlFlags, on bool) error {
 // endpoint.
 func (c *RawConn) SetDeadline(t time.Time) error {
 	if !c.packetHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.packetHandler.IPConn.SetDeadline(t)
 }
@@ -142,7 +141,7 @@ func (c *RawConn) SetDeadline(t time.Time) error {
 // endpoint.
 func (c *RawConn) SetReadDeadline(t time.Time) error {
 	if !c.packetHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.packetHandler.IPConn.SetReadDeadline(t)
 }
@@ -151,7 +150,7 @@ func (c *RawConn) SetReadDeadline(t time.Time) error {
 // endpoint.
 func (c *RawConn) SetWriteDeadline(t time.Time) error {
 	if !c.packetHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.packetHandler.IPConn.SetWriteDeadline(t)
 }
@@ -159,7 +158,7 @@ func (c *RawConn) SetWriteDeadline(t time.Time) error {
 // Close closes the endpoint.
 func (c *RawConn) Close() error {
 	if !c.packetHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.packetHandler.IPConn.Close()
 }
@@ -178,7 +177,7 @@ func NewRawConn(c net.PacketConn) (*RawConn, error) {
 	}
 	so, ok := sockOpts[ssoHeaderPrepend]
 	if !ok {
-		return nil, errOpNoSupport
+		return nil, errNotImplemented
 	}
 	if err := so.SetInt(r.dgramOpt.Conn, boolint(true)); err != nil {
 		return nil, err
diff --git a/vendor/golang.org/x/net/ipv4/gen.go b/vendor/golang.org/x/net/ipv4/gen.go
deleted file mode 100644
index 9d490fa..0000000
--- a/vendor/golang.org/x/net/ipv4/gen.go
+++ /dev/null
@@ -1,199 +0,0 @@
-// Copyright 2013 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.
-
-// +build ignore
-
-//go:generate go run gen.go
-
-// This program generates system adaptation constants and types,
-// internet protocol constants and tables by reading template files
-// and IANA protocol registries.
-package main
-
-import (
-	"bytes"
-	"encoding/xml"
-	"fmt"
-	"go/format"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"os"
-	"os/exec"
-	"runtime"
-	"strconv"
-	"strings"
-)
-
-func main() {
-	if err := genzsys(); err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		os.Exit(1)
-	}
-	if err := geniana(); err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		os.Exit(1)
-	}
-}
-
-func genzsys() error {
-	defs := "defs_" + runtime.GOOS + ".go"
-	f, err := os.Open(defs)
-	if err != nil {
-		if os.IsNotExist(err) {
-			return nil
-		}
-		return err
-	}
-	f.Close()
-	cmd := exec.Command("go", "tool", "cgo", "-godefs", defs)
-	b, err := cmd.Output()
-	if err != nil {
-		return err
-	}
-	b, err = format.Source(b)
-	if err != nil {
-		return err
-	}
-	zsys := "zsys_" + runtime.GOOS + ".go"
-	switch runtime.GOOS {
-	case "freebsd", "linux":
-		zsys = "zsys_" + runtime.GOOS + "_" + runtime.GOARCH + ".go"
-	}
-	if err := ioutil.WriteFile(zsys, b, 0644); err != nil {
-		return err
-	}
-	return nil
-}
-
-var registries = []struct {
-	url   string
-	parse func(io.Writer, io.Reader) error
-}{
-	{
-		"https://www.iana.org/assignments/icmp-parameters/icmp-parameters.xml",
-		parseICMPv4Parameters,
-	},
-}
-
-func geniana() error {
-	var bb bytes.Buffer
-	fmt.Fprintf(&bb, "// go generate gen.go\n")
-	fmt.Fprintf(&bb, "// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT\n\n")
-	fmt.Fprintf(&bb, "package ipv4\n\n")
-	for _, r := range registries {
-		resp, err := http.Get(r.url)
-		if err != nil {
-			return err
-		}
-		defer resp.Body.Close()
-		if resp.StatusCode != http.StatusOK {
-			return fmt.Errorf("got HTTP status code %v for %v\n", resp.StatusCode, r.url)
-		}
-		if err := r.parse(&bb, resp.Body); err != nil {
-			return err
-		}
-		fmt.Fprintf(&bb, "\n")
-	}
-	b, err := format.Source(bb.Bytes())
-	if err != nil {
-		return err
-	}
-	if err := ioutil.WriteFile("iana.go", b, 0644); err != nil {
-		return err
-	}
-	return nil
-}
-
-func parseICMPv4Parameters(w io.Writer, r io.Reader) error {
-	dec := xml.NewDecoder(r)
-	var icp icmpv4Parameters
-	if err := dec.Decode(&icp); err != nil {
-		return err
-	}
-	prs := icp.escape()
-	fmt.Fprintf(w, "// %s, Updated: %s\n", icp.Title, icp.Updated)
-	fmt.Fprintf(w, "const (\n")
-	for _, pr := range prs {
-		if pr.Descr == "" {
-			continue
-		}
-		fmt.Fprintf(w, "ICMPType%s ICMPType = %d", pr.Descr, pr.Value)
-		fmt.Fprintf(w, "// %s\n", pr.OrigDescr)
-	}
-	fmt.Fprintf(w, ")\n\n")
-	fmt.Fprintf(w, "// %s, Updated: %s\n", icp.Title, icp.Updated)
-	fmt.Fprintf(w, "var icmpTypes = map[ICMPType]string{\n")
-	for _, pr := range prs {
-		if pr.Descr == "" {
-			continue
-		}
-		fmt.Fprintf(w, "%d: %q,\n", pr.Value, strings.ToLower(pr.OrigDescr))
-	}
-	fmt.Fprintf(w, "}\n")
-	return nil
-}
-
-type icmpv4Parameters struct {
-	XMLName    xml.Name `xml:"registry"`
-	Title      string   `xml:"title"`
-	Updated    string   `xml:"updated"`
-	Registries []struct {
-		Title   string `xml:"title"`
-		Records []struct {
-			Value string `xml:"value"`
-			Descr string `xml:"description"`
-		} `xml:"record"`
-	} `xml:"registry"`
-}
-
-type canonICMPv4ParamRecord struct {
-	OrigDescr string
-	Descr     string
-	Value     int
-}
-
-func (icp *icmpv4Parameters) escape() []canonICMPv4ParamRecord {
-	id := -1
-	for i, r := range icp.Registries {
-		if strings.Contains(r.Title, "Type") || strings.Contains(r.Title, "type") {
-			id = i
-			break
-		}
-	}
-	if id < 0 {
-		return nil
-	}
-	prs := make([]canonICMPv4ParamRecord, len(icp.Registries[id].Records))
-	sr := strings.NewReplacer(
-		"Messages", "",
-		"Message", "",
-		"ICMP", "",
-		"+", "P",
-		"-", "",
-		"/", "",
-		".", "",
-		" ", "",
-	)
-	for i, pr := range icp.Registries[id].Records {
-		if strings.Contains(pr.Descr, "Reserved") ||
-			strings.Contains(pr.Descr, "Unassigned") ||
-			strings.Contains(pr.Descr, "Deprecated") ||
-			strings.Contains(pr.Descr, "Experiment") ||
-			strings.Contains(pr.Descr, "experiment") {
-			continue
-		}
-		ss := strings.Split(pr.Descr, "\n")
-		if len(ss) > 1 {
-			prs[i].Descr = strings.Join(ss, " ")
-		} else {
-			prs[i].Descr = ss[0]
-		}
-		s := strings.TrimSpace(prs[i].Descr)
-		prs[i].OrigDescr = s
-		prs[i].Descr = sr.Replace(s)
-		prs[i].Value, _ = strconv.Atoi(pr.Value)
-	}
-	return prs
-}
diff --git a/vendor/golang.org/x/net/ipv4/genericopt.go b/vendor/golang.org/x/net/ipv4/genericopt.go
index 119bf84..51c1237 100644
--- a/vendor/golang.org/x/net/ipv4/genericopt.go
+++ b/vendor/golang.org/x/net/ipv4/genericopt.go
@@ -4,16 +4,14 @@
 
 package ipv4
 
-import "syscall"
-
 // TOS returns the type-of-service field value for outgoing packets.
 func (c *genericOpt) TOS() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoTOS]
 	if !ok {
-		return 0, errOpNoSupport
+		return 0, errNotImplemented
 	}
 	return so.GetInt(c.Conn)
 }
@@ -22,11 +20,11 @@ func (c *genericOpt) TOS() (int, error) {
 // packets.
 func (c *genericOpt) SetTOS(tos int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoTOS]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.SetInt(c.Conn, tos)
 }
@@ -34,11 +32,11 @@ func (c *genericOpt) SetTOS(tos int) error {
 // TTL returns the time-to-live field value for outgoing packets.
 func (c *genericOpt) TTL() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoTTL]
 	if !ok {
-		return 0, errOpNoSupport
+		return 0, errNotImplemented
 	}
 	return so.GetInt(c.Conn)
 }
@@ -47,11 +45,11 @@ func (c *genericOpt) TTL() (int, error) {
 // packets.
 func (c *genericOpt) SetTTL(ttl int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoTTL]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.SetInt(c.Conn, ttl)
 }
diff --git a/vendor/golang.org/x/net/ipv4/header.go b/vendor/golang.org/x/net/ipv4/header.go
index 8bb0f0f..a00a3ea 100644
--- a/vendor/golang.org/x/net/ipv4/header.go
+++ b/vendor/golang.org/x/net/ipv4/header.go
@@ -9,15 +9,13 @@ import (
 	"fmt"
 	"net"
 	"runtime"
-	"syscall"
 
 	"golang.org/x/net/internal/socket"
 )
 
 const (
-	Version      = 4  // protocol version
-	HeaderLen    = 20 // header length without extension headers
-	maxHeaderLen = 60 // sensible default, revisit if later RFCs define new usage of version and header length fields
+	Version   = 4  // protocol version
+	HeaderLen = 20 // header length without extension headers
 )
 
 type HeaderFlags int
@@ -52,9 +50,13 @@ func (h *Header) String() string {
 }
 
 // Marshal returns the binary encoding of h.
+//
+// The returned slice is in the format used by a raw IP socket on the
+// local system.
+// This may differ from the wire format, depending on the system.
 func (h *Header) Marshal() ([]byte, error) {
 	if h == nil {
-		return nil, syscall.EINVAL
+		return nil, errNilHeader
 	}
 	if h.Len < HeaderLen {
 		return nil, errHeaderTooShort
@@ -65,7 +67,7 @@ func (h *Header) Marshal() ([]byte, error) {
 	b[1] = byte(h.TOS)
 	flagsAndFragOff := (h.FragOff & 0x1fff) | int(h.Flags<<13)
 	switch runtime.GOOS {
-	case "darwin", "dragonfly", "netbsd":
+	case "darwin", "ios", "dragonfly", "netbsd":
 		socket.NativeEndian.PutUint16(b[2:4], uint16(h.TotalLen))
 		socket.NativeEndian.PutUint16(b[6:8], uint16(flagsAndFragOff))
 	case "freebsd":
@@ -98,14 +100,21 @@ func (h *Header) Marshal() ([]byte, error) {
 	return b, nil
 }
 
-// Parse parses b as an IPv4 header and sotres the result in h.
+// Parse parses b as an IPv4 header and stores the result in h.
+//
+// The provided b must be in the format used by a raw IP socket on the
+// local system.
+// This may differ from the wire format, depending on the system.
 func (h *Header) Parse(b []byte) error {
-	if h == nil || len(b) < HeaderLen {
+	if h == nil || b == nil {
+		return errNilHeader
+	}
+	if len(b) < HeaderLen {
 		return errHeaderTooShort
 	}
 	hdrlen := int(b[0]&0x0f) << 2
-	if hdrlen > len(b) {
-		return errBufferTooShort
+	if len(b) < hdrlen {
+		return errExtHeaderTooShort
 	}
 	h.Version = int(b[0] >> 4)
 	h.Len = hdrlen
@@ -117,7 +126,7 @@ func (h *Header) Parse(b []byte) error {
 	h.Src = net.IPv4(b[12], b[13], b[14], b[15])
 	h.Dst = net.IPv4(b[16], b[17], b[18], b[19])
 	switch runtime.GOOS {
-	case "darwin", "dragonfly", "netbsd":
+	case "darwin", "ios", "dragonfly", "netbsd":
 		h.TotalLen = int(socket.NativeEndian.Uint16(b[2:4])) + hdrlen
 		h.FragOff = int(socket.NativeEndian.Uint16(b[6:8]))
 	case "freebsd":
@@ -150,6 +159,10 @@ func (h *Header) Parse(b []byte) error {
 }
 
 // ParseHeader parses b as an IPv4 header.
+//
+// The provided b must be in the format used by a raw IP socket on the
+// local system.
+// This may differ from the wire format, depending on the system.
 func ParseHeader(b []byte) (*Header, error) {
 	h := new(Header)
 	if err := h.Parse(b); err != nil {
diff --git a/vendor/golang.org/x/net/ipv4/helper.go b/vendor/golang.org/x/net/ipv4/helper.go
index a5052e3..e845a73 100644
--- a/vendor/golang.org/x/net/ipv4/helper.go
+++ b/vendor/golang.org/x/net/ipv4/helper.go
@@ -7,22 +7,36 @@ package ipv4
 import (
 	"errors"
 	"net"
+	"runtime"
+
+	"golang.org/x/net/internal/socket"
 )
 
 var (
-	errMissingAddress           = errors.New("missing address")
-	errMissingHeader            = errors.New("missing header")
-	errHeaderTooShort           = errors.New("header too short")
-	errBufferTooShort           = errors.New("buffer too short")
-	errInvalidConnType          = errors.New("invalid conn type")
-	errOpNoSupport              = errors.New("operation not supported")
-	errNoSuchInterface          = errors.New("no such interface")
-	errNoSuchMulticastInterface = errors.New("no such multicast interface")
-
-	// See http://www.freebsd.org/doc/en/books/porters-handbook/freebsd-versions.html.
-	freebsdVersion uint32
+	errInvalidConn       = errors.New("invalid connection")
+	errMissingAddress    = errors.New("missing address")
+	errNilHeader         = errors.New("nil header")
+	errHeaderTooShort    = errors.New("header too short")
+	errExtHeaderTooShort = errors.New("extension header too short")
+	errInvalidConnType   = errors.New("invalid conn type")
+	errNotImplemented    = errors.New("not implemented on " + runtime.GOOS + "/" + runtime.GOARCH)
+
+	// See https://www.freebsd.org/doc/en/books/porters-handbook/versions.html.
+	freebsdVersion  uint32
+	compatFreeBSD32 bool // 386 emulation on amd64
 )
 
+// See golang.org/issue/30899.
+func adjustFreeBSD32(m *socket.Message) {
+	// FreeBSD 12.0-RELEASE is affected by https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236737
+	if 1200086 <= freebsdVersion && freebsdVersion < 1201000 {
+		l := (m.NN + 4 - 1) &^ (4 - 1)
+		if m.NN < l && l <= len(m.OOB) {
+			m.NN = l
+		}
+	}
+}
+
 func boolint(b bool) int {
 	if b {
 		return 1
diff --git a/vendor/golang.org/x/net/ipv4/iana.go b/vendor/golang.org/x/net/ipv4/iana.go
index be10c94..4375b40 100644
--- a/vendor/golang.org/x/net/ipv4/iana.go
+++ b/vendor/golang.org/x/net/ipv4/iana.go
@@ -1,9 +1,9 @@
 // go generate gen.go
-// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
+// Code generated by the command above; DO NOT EDIT.
 
 package ipv4
 
-// Internet Control Message Protocol (ICMP) Parameters, Updated: 2013-04-19
+// Internet Control Message Protocol (ICMP) Parameters, Updated: 2018-02-26
 const (
 	ICMPTypeEchoReply              ICMPType = 0  // Echo Reply
 	ICMPTypeDestinationUnreachable ICMPType = 3  // Destination Unreachable
@@ -16,9 +16,11 @@ const (
 	ICMPTypeTimestamp              ICMPType = 13 // Timestamp
 	ICMPTypeTimestampReply         ICMPType = 14 // Timestamp Reply
 	ICMPTypePhoturis               ICMPType = 40 // Photuris
+	ICMPTypeExtendedEchoRequest    ICMPType = 42 // Extended Echo Request
+	ICMPTypeExtendedEchoReply      ICMPType = 43 // Extended Echo Reply
 )
 
-// Internet Control Message Protocol (ICMP) Parameters, Updated: 2013-04-19
+// Internet Control Message Protocol (ICMP) Parameters, Updated: 2018-02-26
 var icmpTypes = map[ICMPType]string{
 	0:  "echo reply",
 	3:  "destination unreachable",
@@ -31,4 +33,6 @@ var icmpTypes = map[ICMPType]string{
 	13: "timestamp",
 	14: "timestamp reply",
 	40: "photuris",
+	42: "extended echo request",
+	43: "extended echo reply",
 }
diff --git a/vendor/golang.org/x/net/ipv4/packet.go b/vendor/golang.org/x/net/ipv4/packet.go
index f00f5b0..7d784e0 100644
--- a/vendor/golang.org/x/net/ipv4/packet.go
+++ b/vendor/golang.org/x/net/ipv4/packet.go
@@ -6,7 +6,6 @@ package ipv4
 
 import (
 	"net"
-	"syscall"
 
 	"golang.org/x/net/internal/socket"
 )
@@ -28,9 +27,37 @@ func (c *packetHandler) ok() bool { return c != nil && c.IPConn != nil && c.Conn
 // header h, the payload p and the control message cm.
 func (c *packetHandler) ReadFrom(b []byte) (h *Header, p []byte, cm *ControlMessage, err error) {
 	if !c.ok() {
-		return nil, nil, nil, syscall.EINVAL
+		return nil, nil, nil, errInvalidConn
 	}
-	return c.readFrom(b)
+	c.rawOpt.RLock()
+	m := socket.Message{
+		Buffers: [][]byte{b},
+		OOB:     NewControlMessage(c.rawOpt.cflags),
+	}
+	c.rawOpt.RUnlock()
+	if err := c.RecvMsg(&m, 0); err != nil {
+		return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
+	}
+	var hs []byte
+	if hs, p, err = slicePacket(b[:m.N]); err != nil {
+		return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
+	}
+	if h, err = ParseHeader(hs); err != nil {
+		return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
+	}
+	if m.NN > 0 {
+		if compatFreeBSD32 {
+			adjustFreeBSD32(&m)
+		}
+		cm = new(ControlMessage)
+		if err := cm.Parse(m.OOB[:m.NN]); err != nil {
+			return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
+		}
+	}
+	if src, ok := m.Addr.(*net.IPAddr); ok && cm != nil {
+		cm.Src = src.IP
+	}
+	return
 }
 
 func slicePacket(b []byte) (h, p []byte, err error) {
@@ -63,7 +90,28 @@ func slicePacket(b []byte) (h, p []byte, err error) {
 //	Options       = optional
 func (c *packetHandler) WriteTo(h *Header, p []byte, cm *ControlMessage) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
+	}
+	m := socket.Message{
+		OOB: cm.Marshal(),
+	}
+	wh, err := h.Marshal()
+	if err != nil {
+		return err
+	}
+	m.Buffers = [][]byte{wh, p}
+	dst := new(net.IPAddr)
+	if cm != nil {
+		if ip := cm.Dst.To4(); ip != nil {
+			dst.IP = ip
+		}
+	}
+	if dst.IP == nil {
+		dst.IP = h.Dst
+	}
+	m.Addr = dst
+	if err := c.SendMsg(&m, 0); err != nil {
+		return &net.OpError{Op: "write", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Addr: opAddr(dst), Err: err}
 	}
-	return c.writeTo(h, p, cm)
+	return nil
 }
diff --git a/vendor/golang.org/x/net/ipv4/packet_go1_8.go b/vendor/golang.org/x/net/ipv4/packet_go1_8.go
deleted file mode 100644
index b47d186..0000000
--- a/vendor/golang.org/x/net/ipv4/packet_go1_8.go
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright 2012 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.
-
-// +build !go1.9
-
-package ipv4
-
-import "net"
-
-func (c *packetHandler) readFrom(b []byte) (h *Header, p []byte, cm *ControlMessage, err error) {
-	c.rawOpt.RLock()
-	oob := NewControlMessage(c.rawOpt.cflags)
-	c.rawOpt.RUnlock()
-	n, nn, _, src, err := c.ReadMsgIP(b, oob)
-	if err != nil {
-		return nil, nil, nil, err
-	}
-	var hs []byte
-	if hs, p, err = slicePacket(b[:n]); err != nil {
-		return nil, nil, nil, err
-	}
-	if h, err = ParseHeader(hs); err != nil {
-		return nil, nil, nil, err
-	}
-	if nn > 0 {
-		cm = new(ControlMessage)
-		if err := cm.Parse(oob[:nn]); err != nil {
-			return nil, nil, nil, err
-		}
-	}
-	if src != nil && cm != nil {
-		cm.Src = src.IP
-	}
-	return
-}
-
-func (c *packetHandler) writeTo(h *Header, p []byte, cm *ControlMessage) error {
-	oob := cm.Marshal()
-	wh, err := h.Marshal()
-	if err != nil {
-		return err
-	}
-	dst := new(net.IPAddr)
-	if cm != nil {
-		if ip := cm.Dst.To4(); ip != nil {
-			dst.IP = ip
-		}
-	}
-	if dst.IP == nil {
-		dst.IP = h.Dst
-	}
-	wh = append(wh, p...)
-	_, _, err = c.WriteMsgIP(wh, oob, dst)
-	return err
-}
diff --git a/vendor/golang.org/x/net/ipv4/packet_go1_9.go b/vendor/golang.org/x/net/ipv4/packet_go1_9.go
deleted file mode 100644
index 082c36d..0000000
--- a/vendor/golang.org/x/net/ipv4/packet_go1_9.go
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright 2017 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.
-
-// +build go1.9
-
-package ipv4
-
-import (
-	"net"
-
-	"golang.org/x/net/internal/socket"
-)
-
-func (c *packetHandler) readFrom(b []byte) (h *Header, p []byte, cm *ControlMessage, err error) {
-	c.rawOpt.RLock()
-	m := socket.Message{
-		Buffers: [][]byte{b},
-		OOB:     NewControlMessage(c.rawOpt.cflags),
-	}
-	c.rawOpt.RUnlock()
-	if err := c.RecvMsg(&m, 0); err != nil {
-		return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
-	}
-	var hs []byte
-	if hs, p, err = slicePacket(b[:m.N]); err != nil {
-		return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
-	}
-	if h, err = ParseHeader(hs); err != nil {
-		return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
-	}
-	if m.NN > 0 {
-		cm = new(ControlMessage)
-		if err := cm.Parse(m.OOB[:m.NN]); err != nil {
-			return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err}
-		}
-	}
-	if src, ok := m.Addr.(*net.IPAddr); ok && cm != nil {
-		cm.Src = src.IP
-	}
-	return
-}
-
-func (c *packetHandler) writeTo(h *Header, p []byte, cm *ControlMessage) error {
-	m := socket.Message{
-		OOB: cm.Marshal(),
-	}
-	wh, err := h.Marshal()
-	if err != nil {
-		return err
-	}
-	m.Buffers = [][]byte{wh, p}
-	dst := new(net.IPAddr)
-	if cm != nil {
-		if ip := cm.Dst.To4(); ip != nil {
-			dst.IP = ip
-		}
-	}
-	if dst.IP == nil {
-		dst.IP = h.Dst
-	}
-	m.Addr = dst
-	if err := c.SendMsg(&m, 0); err != nil {
-		return &net.OpError{Op: "write", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Addr: opAddr(dst), Err: err}
-	}
-	return nil
-}
diff --git a/vendor/golang.org/x/net/ipv4/payload_cmsg.go b/vendor/golang.org/x/net/ipv4/payload_cmsg.go
index 3f06d76..7bde689 100644
--- a/vendor/golang.org/x/net/ipv4/payload_cmsg.go
+++ b/vendor/golang.org/x/net/ipv4/payload_cmsg.go
@@ -2,13 +2,14 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !nacl,!plan9,!windows
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 package ipv4
 
 import (
 	"net"
-	"syscall"
+
+	"golang.org/x/net/internal/socket"
 )
 
 // ReadFrom reads a payload of the received IPv4 datagram, from the
@@ -17,9 +18,47 @@ import (
 // src of the received datagram.
 func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
 	if !c.ok() {
-		return 0, nil, nil, syscall.EINVAL
+		return 0, nil, nil, errInvalidConn
+	}
+	c.rawOpt.RLock()
+	m := socket.Message{
+		OOB: NewControlMessage(c.rawOpt.cflags),
+	}
+	c.rawOpt.RUnlock()
+	switch c.PacketConn.(type) {
+	case *net.UDPConn:
+		m.Buffers = [][]byte{b}
+		if err := c.RecvMsg(&m, 0); err != nil {
+			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
+		}
+	case *net.IPConn:
+		h := make([]byte, HeaderLen)
+		m.Buffers = [][]byte{h, b}
+		if err := c.RecvMsg(&m, 0); err != nil {
+			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
+		}
+		hdrlen := int(h[0]&0x0f) << 2
+		if hdrlen > len(h) {
+			d := hdrlen - len(h)
+			copy(b, b[d:])
+			m.N -= d
+		} else {
+			m.N -= hdrlen
+		}
+	default:
+		return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errInvalidConnType}
 	}
-	return c.readFrom(b)
+	if m.NN > 0 {
+		if compatFreeBSD32 {
+			adjustFreeBSD32(&m)
+		}
+		cm = new(ControlMessage)
+		if err := cm.Parse(m.OOB[:m.NN]); err != nil {
+			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
+		}
+		cm.Src = netAddrToIP4(m.Addr)
+	}
+	return m.N, cm, m.Addr, nil
 }
 
 // WriteTo writes a payload of the IPv4 datagram, to the destination
@@ -30,7 +69,16 @@ func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.
 // control of the outgoing datagram is not required.
 func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
+	}
+	m := socket.Message{
+		Buffers: [][]byte{b},
+		OOB:     cm.Marshal(),
+		Addr:    dst,
+	}
+	err = c.SendMsg(&m, 0)
+	if err != nil {
+		err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Addr: opAddr(dst), Err: err}
 	}
-	return c.writeTo(b, cm, dst)
+	return m.N, err
 }
diff --git a/vendor/golang.org/x/net/ipv4/payload_cmsg_go1_8.go b/vendor/golang.org/x/net/ipv4/payload_cmsg_go1_8.go
deleted file mode 100644
index d26ccd9..0000000
--- a/vendor/golang.org/x/net/ipv4/payload_cmsg_go1_8.go
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright 2012 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.
-
-// +build !go1.9
-// +build !nacl,!plan9,!windows
-
-package ipv4
-
-import "net"
-
-func (c *payloadHandler) readFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
-	c.rawOpt.RLock()
-	oob := NewControlMessage(c.rawOpt.cflags)
-	c.rawOpt.RUnlock()
-	var nn int
-	switch c := c.PacketConn.(type) {
-	case *net.UDPConn:
-		if n, nn, _, src, err = c.ReadMsgUDP(b, oob); err != nil {
-			return 0, nil, nil, err
-		}
-	case *net.IPConn:
-		nb := make([]byte, maxHeaderLen+len(b))
-		if n, nn, _, src, err = c.ReadMsgIP(nb, oob); err != nil {
-			return 0, nil, nil, err
-		}
-		hdrlen := int(nb[0]&0x0f) << 2
-		copy(b, nb[hdrlen:])
-		n -= hdrlen
-	default:
-		return 0, nil, nil, &net.OpError{Op: "read", Net: c.LocalAddr().Network(), Source: c.LocalAddr(), Err: errInvalidConnType}
-	}
-	if nn > 0 {
-		cm = new(ControlMessage)
-		if err = cm.Parse(oob[:nn]); err != nil {
-			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
-		}
-	}
-	if cm != nil {
-		cm.Src = netAddrToIP4(src)
-	}
-	return
-}
-
-func (c *payloadHandler) writeTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
-	oob := cm.Marshal()
-	if dst == nil {
-		return 0, &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errMissingAddress}
-	}
-	switch c := c.PacketConn.(type) {
-	case *net.UDPConn:
-		n, _, err = c.WriteMsgUDP(b, oob, dst.(*net.UDPAddr))
-	case *net.IPConn:
-		n, _, err = c.WriteMsgIP(b, oob, dst.(*net.IPAddr))
-	default:
-		return 0, &net.OpError{Op: "write", Net: c.LocalAddr().Network(), Source: c.LocalAddr(), Addr: opAddr(dst), Err: errInvalidConnType}
-	}
-	return
-}
diff --git a/vendor/golang.org/x/net/ipv4/payload_cmsg_go1_9.go b/vendor/golang.org/x/net/ipv4/payload_cmsg_go1_9.go
deleted file mode 100644
index 2f19311..0000000
--- a/vendor/golang.org/x/net/ipv4/payload_cmsg_go1_9.go
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright 2017 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.
-
-// +build go1.9
-// +build !nacl,!plan9,!windows
-
-package ipv4
-
-import (
-	"net"
-
-	"golang.org/x/net/internal/socket"
-)
-
-func (c *payloadHandler) readFrom(b []byte) (int, *ControlMessage, net.Addr, error) {
-	c.rawOpt.RLock()
-	m := socket.Message{
-		OOB: NewControlMessage(c.rawOpt.cflags),
-	}
-	c.rawOpt.RUnlock()
-	switch c.PacketConn.(type) {
-	case *net.UDPConn:
-		m.Buffers = [][]byte{b}
-		if err := c.RecvMsg(&m, 0); err != nil {
-			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
-		}
-	case *net.IPConn:
-		h := make([]byte, HeaderLen)
-		m.Buffers = [][]byte{h, b}
-		if err := c.RecvMsg(&m, 0); err != nil {
-			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
-		}
-		hdrlen := int(h[0]&0x0f) << 2
-		if hdrlen > len(h) {
-			d := hdrlen - len(h)
-			copy(b, b[d:])
-			m.N -= d
-		} else {
-			m.N -= hdrlen
-		}
-	default:
-		return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errInvalidConnType}
-	}
-	var cm *ControlMessage
-	if m.NN > 0 {
-		cm = new(ControlMessage)
-		if err := cm.Parse(m.OOB[:m.NN]); err != nil {
-			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
-		}
-		cm.Src = netAddrToIP4(m.Addr)
-	}
-	return m.N, cm, m.Addr, nil
-}
-
-func (c *payloadHandler) writeTo(b []byte, cm *ControlMessage, dst net.Addr) (int, error) {
-	m := socket.Message{
-		Buffers: [][]byte{b},
-		OOB:     cm.Marshal(),
-		Addr:    dst,
-	}
-	err := c.SendMsg(&m, 0)
-	if err != nil {
-		err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Addr: opAddr(dst), Err: err}
-	}
-	return m.N, err
-}
diff --git a/vendor/golang.org/x/net/ipv4/payload_nocmsg.go b/vendor/golang.org/x/net/ipv4/payload_nocmsg.go
index 3926de7..251bd0c 100644
--- a/vendor/golang.org/x/net/ipv4/payload_nocmsg.go
+++ b/vendor/golang.org/x/net/ipv4/payload_nocmsg.go
@@ -2,14 +2,11 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl plan9 windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!zos
 
 package ipv4
 
-import (
-	"net"
-	"syscall"
-)
+import "net"
 
 // ReadFrom reads a payload of the received IPv4 datagram, from the
 // endpoint c, copying the payload into b. It returns the number of
@@ -17,7 +14,7 @@ import (
 // src of the received datagram.
 func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
 	if !c.ok() {
-		return 0, nil, nil, syscall.EINVAL
+		return 0, nil, nil, errInvalidConn
 	}
 	if n, src, err = c.PacketConn.ReadFrom(b); err != nil {
 		return 0, nil, nil, err
@@ -33,7 +30,7 @@ func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.
 // control of the outgoing datagram is not required.
 func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	if dst == nil {
 		return 0, errMissingAddress
diff --git a/vendor/golang.org/x/net/ipv4/sockopt_posix.go b/vendor/golang.org/x/net/ipv4/sockopt_posix.go
index e96955b..ef29718 100644
--- a/vendor/golang.org/x/net/ipv4/sockopt_posix.go
+++ b/vendor/golang.org/x/net/ipv4/sockopt_posix.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.
 
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris windows zos
 
 package ipv4
 
@@ -39,7 +39,7 @@ func (so *sockOpt) getICMPFilter(c *socket.Conn) (*ICMPFilter, error) {
 		return nil, err
 	}
 	if n != sizeofICMPFilter {
-		return nil, errOpNoSupport
+		return nil, errNotImplemented
 	}
 	return (*ICMPFilter)(unsafe.Pointer(&b[0])), nil
 }
@@ -58,7 +58,7 @@ func (so *sockOpt) setGroup(c *socket.Conn, ifi *net.Interface, grp net.IP) erro
 	case ssoTypeGroupReq:
 		return so.setGroupReq(c, ifi, grp)
 	default:
-		return errOpNoSupport
+		return errNotImplemented
 	}
 }
 
diff --git a/vendor/golang.org/x/net/ipv4/sockopt_stub.go b/vendor/golang.org/x/net/ipv4/sockopt_stub.go
index 23249b7..fbca526 100644
--- a/vendor/golang.org/x/net/ipv4/sockopt_stub.go
+++ b/vendor/golang.org/x/net/ipv4/sockopt_stub.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.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
 
 package ipv4
 
@@ -14,29 +14,29 @@ import (
 )
 
 func (so *sockOpt) getMulticastInterface(c *socket.Conn) (*net.Interface, error) {
-	return nil, errOpNoSupport
+	return nil, errNotImplemented
 }
 
 func (so *sockOpt) setMulticastInterface(c *socket.Conn, ifi *net.Interface) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) getICMPFilter(c *socket.Conn) (*ICMPFilter, error) {
-	return nil, errOpNoSupport
+	return nil, errNotImplemented
 }
 
 func (so *sockOpt) setICMPFilter(c *socket.Conn, f *ICMPFilter) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) setGroup(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) setSourceGroup(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) setBPF(c *socket.Conn, f []bpf.RawInstruction) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv4/sys_aix.go b/vendor/golang.org/x/net/ipv4/sys_aix.go
new file mode 100644
index 0000000..3d1201e
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/sys_aix.go
@@ -0,0 +1,38 @@
+// Copyright 2019 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.
+
+// Added for go1.11 compatibility
+// +build aix
+
+package ipv4
+
+import (
+	"net"
+	"syscall"
+
+	"golang.org/x/net/internal/iana"
+	"golang.org/x/net/internal/socket"
+)
+
+var (
+	ctlOpts = [ctlMax]ctlOpt{
+		ctlTTL:       {sysIP_RECVTTL, 1, marshalTTL, parseTTL},
+		ctlDst:       {sysIP_RECVDSTADDR, net.IPv4len, marshalDst, parseDst},
+		ctlInterface: {sysIP_RECVIF, syscall.SizeofSockaddrDatalink, marshalInterface, parseInterface},
+	}
+
+	sockOpts = map[int]*sockOpt{
+		ssoTOS:                {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_TOS, Len: 4}},
+		ssoTTL:                {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_TTL, Len: 4}},
+		ssoMulticastTTL:       {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_TTL, Len: 1}},
+		ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_IF, Len: 4}},
+		ssoMulticastLoopback:  {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_LOOP, Len: 1}},
+		ssoReceiveTTL:         {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVTTL, Len: 4}},
+		ssoReceiveDst:         {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVDSTADDR, Len: 4}},
+		ssoReceiveInterface:   {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVIF, Len: 4}},
+		ssoHeaderPrepend:      {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_HDRINCL, Len: 4}},
+		ssoJoinGroup:          {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_ADD_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq},
+		ssoLeaveGroup:         {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_DROP_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq},
+	}
+)
diff --git a/vendor/golang.org/x/net/ipv4/sys_asmreq.go b/vendor/golang.org/x/net/ipv4/sys_asmreq.go
index 0388cba..76d670a 100644
--- a/vendor/golang.org/x/net/ipv4/sys_asmreq.go
+++ b/vendor/golang.org/x/net/ipv4/sys_asmreq.go
@@ -2,17 +2,20 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin dragonfly freebsd netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd netbsd openbsd solaris windows
 
 package ipv4
 
 import (
+	"errors"
 	"net"
 	"unsafe"
 
 	"golang.org/x/net/internal/socket"
 )
 
+var errNoSuchInterface = errors.New("no such interface")
+
 func (so *sockOpt) setIPMreq(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
 	mreq := ipMreq{Multiaddr: [4]byte{grp[0], grp[1], grp[2], grp[3]}}
 	if err := setIPMreqInterface(&mreq, ifi); err != nil {
diff --git a/vendor/golang.org/x/net/ipv4/sys_asmreq_stub.go b/vendor/golang.org/x/net/ipv4/sys_asmreq_stub.go
index f391920..6dc339c 100644
--- a/vendor/golang.org/x/net/ipv4/sys_asmreq_stub.go
+++ b/vendor/golang.org/x/net/ipv4/sys_asmreq_stub.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.
 
-// +build !darwin,!dragonfly,!freebsd,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!netbsd,!openbsd,!solaris,!windows
 
 package ipv4
 
@@ -13,13 +13,13 @@ import (
 )
 
 func (so *sockOpt) setIPMreq(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) getMulticastIf(c *socket.Conn) (*net.Interface, error) {
-	return nil, errOpNoSupport
+	return nil, errNotImplemented
 }
 
 func (so *sockOpt) setMulticastIf(c *socket.Conn, ifi *net.Interface) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv4/sys_asmreqn_stub.go b/vendor/golang.org/x/net/ipv4/sys_asmreqn_stub.go
index 0711d3d..48ef556 100644
--- a/vendor/golang.org/x/net/ipv4/sys_asmreqn_stub.go
+++ b/vendor/golang.org/x/net/ipv4/sys_asmreqn_stub.go
@@ -13,9 +13,9 @@ import (
 )
 
 func (so *sockOpt) getIPMreqn(c *socket.Conn) (*net.Interface, error) {
-	return nil, errOpNoSupport
+	return nil, errNotImplemented
 }
 
 func (so *sockOpt) setIPMreqn(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv4/sys_bpf.go b/vendor/golang.org/x/net/ipv4/sys_bpf.go
index 9f30b73..5c03dce 100644
--- a/vendor/golang.org/x/net/ipv4/sys_bpf.go
+++ b/vendor/golang.org/x/net/ipv4/sys_bpf.go
@@ -11,13 +11,14 @@ import (
 
 	"golang.org/x/net/bpf"
 	"golang.org/x/net/internal/socket"
+	"golang.org/x/sys/unix"
 )
 
 func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error {
-	prog := sockFProg{
+	prog := unix.SockFprog{
 		Len:    uint16(len(f)),
-		Filter: (*sockFilter)(unsafe.Pointer(&f[0])),
+		Filter: (*unix.SockFilter)(unsafe.Pointer(&f[0])),
 	}
-	b := (*[sizeofSockFprog]byte)(unsafe.Pointer(&prog))[:sizeofSockFprog]
+	b := (*[unix.SizeofSockFprog]byte)(unsafe.Pointer(&prog))[:unix.SizeofSockFprog]
 	return so.Set(c, b)
 }
diff --git a/vendor/golang.org/x/net/ipv4/sys_bpf_stub.go b/vendor/golang.org/x/net/ipv4/sys_bpf_stub.go
index 9a21320..5c98642 100644
--- a/vendor/golang.org/x/net/ipv4/sys_bpf_stub.go
+++ b/vendor/golang.org/x/net/ipv4/sys_bpf_stub.go
@@ -12,5 +12,5 @@ import (
 )
 
 func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv4/sys_darwin.go b/vendor/golang.org/x/net/ipv4/sys_darwin.go
index e8fb191..ac213c7 100644
--- a/vendor/golang.org/x/net/ipv4/sys_darwin.go
+++ b/vendor/golang.org/x/net/ipv4/sys_darwin.go
@@ -6,8 +6,6 @@ package ipv4
 
 import (
 	"net"
-	"strconv"
-	"strings"
 	"syscall"
 	"unsafe"
 
@@ -17,59 +15,33 @@ import (
 
 var (
 	ctlOpts = [ctlMax]ctlOpt{
-		ctlTTL:       {sysIP_RECVTTL, 1, marshalTTL, parseTTL},
-		ctlDst:       {sysIP_RECVDSTADDR, net.IPv4len, marshalDst, parseDst},
-		ctlInterface: {sysIP_RECVIF, syscall.SizeofSockaddrDatalink, marshalInterface, parseInterface},
+		ctlTTL:        {sysIP_RECVTTL, 1, marshalTTL, parseTTL},
+		ctlDst:        {sysIP_RECVDSTADDR, net.IPv4len, marshalDst, parseDst},
+		ctlInterface:  {sysIP_RECVIF, syscall.SizeofSockaddrDatalink, marshalInterface, parseInterface},
+		ctlPacketInfo: {sysIP_PKTINFO, sizeofInetPktinfo, marshalPacketInfo, parsePacketInfo},
 	}
 
 	sockOpts = map[int]*sockOpt{
 		ssoTOS:                {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_TOS, Len: 4}},
 		ssoTTL:                {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_TTL, Len: 4}},
 		ssoMulticastTTL:       {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_TTL, Len: 1}},
-		ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_IF, Len: 4}},
+		ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_IF, Len: sizeofIPMreqn}, typ: ssoTypeIPMreqn},
 		ssoMulticastLoopback:  {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_LOOP, Len: 4}},
 		ssoReceiveTTL:         {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVTTL, Len: 4}},
 		ssoReceiveDst:         {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVDSTADDR, Len: 4}},
 		ssoReceiveInterface:   {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVIF, Len: 4}},
 		ssoHeaderPrepend:      {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_HDRINCL, Len: 4}},
 		ssoStripHeader:        {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_STRIPHDR, Len: 4}},
-		ssoJoinGroup:          {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_ADD_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq},
-		ssoLeaveGroup:         {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_DROP_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq},
+		ssoJoinGroup:          {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq},
+		ssoLeaveGroup:         {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq},
+		ssoJoinSourceGroup:    {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoLeaveSourceGroup:   {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoBlockSourceGroup:   {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoPacketInfo:         {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVPKTINFO, Len: 4}},
 	}
 )
 
-func init() {
-	// Seems like kern.osreldate is veiled on latest OS X. We use
-	// kern.osrelease instead.
-	s, err := syscall.Sysctl("kern.osrelease")
-	if err != nil {
-		return
-	}
-	ss := strings.Split(s, ".")
-	if len(ss) == 0 {
-		return
-	}
-	// The IP_PKTINFO and protocol-independent multicast API were
-	// introduced in OS X 10.7 (Darwin 11). But it looks like
-	// those features require OS X 10.8 (Darwin 12) or above.
-	// See http://support.apple.com/kb/HT1633.
-	if mjver, err := strconv.Atoi(ss[0]); err != nil || mjver < 12 {
-		return
-	}
-	ctlOpts[ctlPacketInfo].name = sysIP_PKTINFO
-	ctlOpts[ctlPacketInfo].length = sizeofInetPktinfo
-	ctlOpts[ctlPacketInfo].marshal = marshalPacketInfo
-	ctlOpts[ctlPacketInfo].parse = parsePacketInfo
-	sockOpts[ssoPacketInfo] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVPKTINFO, Len: 4}}
-	sockOpts[ssoMulticastInterface] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_IF, Len: sizeofIPMreqn}, typ: ssoTypeIPMreqn}
-	sockOpts[ssoJoinGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}
-	sockOpts[ssoLeaveGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}
-	sockOpts[ssoJoinSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
-	sockOpts[ssoLeaveSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
-	sockOpts[ssoBlockSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
-	sockOpts[ssoUnblockSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
-}
-
 func (pi *inetPktinfo) setIfindex(i int) {
 	pi.Ifindex = uint32(i)
 }
diff --git a/vendor/golang.org/x/net/ipv4/sys_freebsd.go b/vendor/golang.org/x/net/ipv4/sys_freebsd.go
index b800324..482873d 100644
--- a/vendor/golang.org/x/net/ipv4/sys_freebsd.go
+++ b/vendor/golang.org/x/net/ipv4/sys_freebsd.go
@@ -50,7 +50,7 @@ func init() {
 		archs, _ := syscall.Sysctl("kern.supported_archs")
 		for _, s := range strings.Fields(archs) {
 			if s == "amd64" {
-				freebsd32o64 = true
+				compatFreeBSD32 = true
 				break
 			}
 		}
diff --git a/vendor/golang.org/x/net/ipv4/sys_linux.go b/vendor/golang.org/x/net/ipv4/sys_linux.go
index 60defe1..cf755c7 100644
--- a/vendor/golang.org/x/net/ipv4/sys_linux.go
+++ b/vendor/golang.org/x/net/ipv4/sys_linux.go
@@ -11,6 +11,7 @@ import (
 
 	"golang.org/x/net/internal/iana"
 	"golang.org/x/net/internal/socket"
+	"golang.org/x/sys/unix"
 )
 
 var (
@@ -35,7 +36,7 @@ var (
 		ssoLeaveSourceGroup:   {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
 		ssoBlockSourceGroup:   {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
 		ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
-		ssoAttachFilter:       {Option: socket.Option{Level: sysSOL_SOCKET, Name: sysSO_ATTACH_FILTER, Len: sizeofSockFprog}},
+		ssoAttachFilter:       {Option: socket.Option{Level: unix.SOL_SOCKET, Name: unix.SO_ATTACH_FILTER, Len: unix.SizeofSockFprog}},
 	}
 )
 
diff --git a/vendor/golang.org/x/net/ipv4/sys_ssmreq.go b/vendor/golang.org/x/net/ipv4/sys_ssmreq.go
index ae5704e..eeced7f 100644
--- a/vendor/golang.org/x/net/ipv4/sys_ssmreq.go
+++ b/vendor/golang.org/x/net/ipv4/sys_ssmreq.go
@@ -13,8 +13,6 @@ import (
 	"golang.org/x/net/internal/socket"
 )
 
-var freebsd32o64 bool
-
 func (so *sockOpt) setGroupReq(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
 	var gr groupReq
 	if ifi != nil {
@@ -22,7 +20,7 @@ func (so *sockOpt) setGroupReq(c *socket.Conn, ifi *net.Interface, grp net.IP) e
 	}
 	gr.setGroup(grp)
 	var b []byte
-	if freebsd32o64 {
+	if compatFreeBSD32 {
 		var d [sizeofGroupReq + 4]byte
 		s := (*[sizeofGroupReq]byte)(unsafe.Pointer(&gr))
 		copy(d[:4], s[:4])
@@ -41,7 +39,7 @@ func (so *sockOpt) setGroupSourceReq(c *socket.Conn, ifi *net.Interface, grp, sr
 	}
 	gsr.setSourceGroup(grp, src)
 	var b []byte
-	if freebsd32o64 {
+	if compatFreeBSD32 {
 		var d [sizeofGroupSourceReq + 4]byte
 		s := (*[sizeofGroupSourceReq]byte)(unsafe.Pointer(&gsr))
 		copy(d[:4], s[:4])
diff --git a/vendor/golang.org/x/net/ipv4/sys_ssmreq_stub.go b/vendor/golang.org/x/net/ipv4/sys_ssmreq_stub.go
index e6b7623..c092167 100644
--- a/vendor/golang.org/x/net/ipv4/sys_ssmreq_stub.go
+++ b/vendor/golang.org/x/net/ipv4/sys_ssmreq_stub.go
@@ -13,9 +13,9 @@ import (
 )
 
 func (so *sockOpt) setGroupReq(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) setGroupSourceReq(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv4/sys_stub.go b/vendor/golang.org/x/net/ipv4/sys_stub.go
index 4f07647..5555851 100644
--- a/vendor/golang.org/x/net/ipv4/sys_stub.go
+++ b/vendor/golang.org/x/net/ipv4/sys_stub.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.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
 
 package ipv4
 
diff --git a/vendor/golang.org/x/net/ipv4/sys_zos.go b/vendor/golang.org/x/net/ipv4/sys_zos.go
new file mode 100644
index 0000000..7426606
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/sys_zos.go
@@ -0,0 +1,55 @@
+// Copyright 2020 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 ipv4
+
+import (
+	"net"
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/net/internal/iana"
+	"golang.org/x/net/internal/socket"
+)
+
+var (
+	ctlOpts = [ctlMax]ctlOpt{
+		ctlPacketInfo: {sysIP_PKTINFO, sizeofInetPktinfo, marshalPacketInfo, parsePacketInfo},
+	}
+
+	sockOpts = map[int]*sockOpt{
+		ssoMulticastTTL:       {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_TTL, Len: 1}},
+		ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_IF, Len: 4}},
+		ssoMulticastLoopback:  {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_MULTICAST_LOOP, Len: 1}},
+		ssoPacketInfo:         {Option: socket.Option{Level: iana.ProtocolIP, Name: sysIP_RECVPKTINFO, Len: 4}},
+		ssoJoinGroup:          {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq},
+		ssoLeaveGroup:         {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq},
+		ssoJoinSourceGroup:    {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoLeaveSourceGroup:   {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoBlockSourceGroup:   {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+	}
+)
+
+func (pi *inetPktinfo) setIfindex(i int) {
+	pi.Ifindex = uint32(i)
+}
+
+func (gr *groupReq) setGroup(grp net.IP) {
+	sa := (*sockaddrInet4)(unsafe.Pointer(&gr.Group))
+	sa.Family = syscall.AF_INET
+	sa.Len = sizeofSockaddrInet4
+	copy(sa.Addr[:], grp)
+}
+
+func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) {
+	sa := (*sockaddrInet4)(unsafe.Pointer(&gsr.Group))
+	sa.Family = syscall.AF_INET
+	sa.Len = sizeofSockaddrInet4
+	copy(sa.Addr[:], grp)
+	sa = (*sockaddrInet4)(unsafe.Pointer(&gsr.Source))
+	sa.Family = syscall.AF_INET
+	sa.Len = sizeofSockaddrInet4
+	copy(sa.Addr[:], src)
+}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_aix_ppc64.go b/vendor/golang.org/x/net/ipv4/zsys_aix_ppc64.go
new file mode 100644
index 0000000..c741d5c
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/zsys_aix_ppc64.go
@@ -0,0 +1,33 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_aix.go
+
+// Added for go1.11 compatibility
+// +build aix
+
+package ipv4
+
+const (
+	sysIP_OPTIONS     = 0x1
+	sysIP_HDRINCL     = 0x2
+	sysIP_TOS         = 0x3
+	sysIP_TTL         = 0x4
+	sysIP_RECVOPTS    = 0x5
+	sysIP_RECVRETOPTS = 0x6
+	sysIP_RECVDSTADDR = 0x7
+	sysIP_RETOPTS     = 0x8
+	sysIP_RECVIF      = 0x20
+	sysIP_RECVTTL     = 0x22
+
+	sysIP_MULTICAST_IF    = 0x9
+	sysIP_MULTICAST_TTL   = 0xa
+	sysIP_MULTICAST_LOOP  = 0xb
+	sysIP_ADD_MEMBERSHIP  = 0xc
+	sysIP_DROP_MEMBERSHIP = 0xd
+
+	sizeofIPMreq = 0x8
+)
+
+type ipMreq struct {
+	Multiaddr [4]byte /* in_addr */
+	Interface [4]byte /* in_addr */
+}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_darwin.go b/vendor/golang.org/x/net/ipv4/zsys_darwin.go
index c07cc88..e05a251 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_darwin.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_darwin.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_darwin.go
 
 package ipv4
diff --git a/vendor/golang.org/x/net/ipv4/zsys_dragonfly.go b/vendor/golang.org/x/net/ipv4/zsys_dragonfly.go
index c4365e9..6d65e9f 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_dragonfly.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_dragonfly.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_dragonfly.go
 
 package ipv4
diff --git a/vendor/golang.org/x/net/ipv4/zsys_freebsd_386.go b/vendor/golang.org/x/net/ipv4/zsys_freebsd_386.go
index 8c4aec9..136e2b8 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_freebsd_386.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_freebsd_386.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package ipv4
diff --git a/vendor/golang.org/x/net/ipv4/zsys_freebsd_amd64.go b/vendor/golang.org/x/net/ipv4/zsys_freebsd_amd64.go
index 4b10b7c..4f730f1 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_freebsd_amd64.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_freebsd_amd64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package ipv4
diff --git a/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm.go b/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm.go
index 4b10b7c..4f730f1 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package ipv4
diff --git a/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm64.go b/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm64.go
new file mode 100644
index 0000000..ecebf32
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm64.go
@@ -0,0 +1,93 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_freebsd.go
+
+package ipv4
+
+const (
+	sysIP_OPTIONS     = 0x1
+	sysIP_HDRINCL     = 0x2
+	sysIP_TOS         = 0x3
+	sysIP_TTL         = 0x4
+	sysIP_RECVOPTS    = 0x5
+	sysIP_RECVRETOPTS = 0x6
+	sysIP_RECVDSTADDR = 0x7
+	sysIP_SENDSRCADDR = 0x7
+	sysIP_RETOPTS     = 0x8
+	sysIP_RECVIF      = 0x14
+	sysIP_ONESBCAST   = 0x17
+	sysIP_BINDANY     = 0x18
+	sysIP_RECVTTL     = 0x41
+	sysIP_MINTTL      = 0x42
+	sysIP_DONTFRAG    = 0x43
+	sysIP_RECVTOS     = 0x44
+
+	sysIP_MULTICAST_IF           = 0x9
+	sysIP_MULTICAST_TTL          = 0xa
+	sysIP_MULTICAST_LOOP         = 0xb
+	sysIP_ADD_MEMBERSHIP         = 0xc
+	sysIP_DROP_MEMBERSHIP        = 0xd
+	sysIP_MULTICAST_VIF          = 0xe
+	sysIP_ADD_SOURCE_MEMBERSHIP  = 0x46
+	sysIP_DROP_SOURCE_MEMBERSHIP = 0x47
+	sysIP_BLOCK_SOURCE           = 0x48
+	sysIP_UNBLOCK_SOURCE         = 0x49
+	sysMCAST_JOIN_GROUP          = 0x50
+	sysMCAST_LEAVE_GROUP         = 0x51
+	sysMCAST_JOIN_SOURCE_GROUP   = 0x52
+	sysMCAST_LEAVE_SOURCE_GROUP  = 0x53
+	sysMCAST_BLOCK_SOURCE        = 0x54
+	sysMCAST_UNBLOCK_SOURCE      = 0x55
+
+	sizeofSockaddrStorage = 0x80
+	sizeofSockaddrInet    = 0x10
+
+	sizeofIPMreq         = 0x8
+	sizeofIPMreqn        = 0xc
+	sizeofIPMreqSource   = 0xc
+	sizeofGroupReq       = 0x88
+	sizeofGroupSourceReq = 0x108
+)
+
+type sockaddrStorage struct {
+	Len         uint8
+	Family      uint8
+	X__ss_pad1  [6]uint8
+	X__ss_align int64
+	X__ss_pad2  [112]uint8
+}
+
+type sockaddrInet struct {
+	Len    uint8
+	Family uint8
+	Port   uint16
+	Addr   [4]byte /* in_addr */
+	Zero   [8]uint8
+}
+
+type ipMreq struct {
+	Multiaddr [4]byte /* in_addr */
+	Interface [4]byte /* in_addr */
+}
+
+type ipMreqn struct {
+	Multiaddr [4]byte /* in_addr */
+	Address   [4]byte /* in_addr */
+	Ifindex   int32
+}
+
+type ipMreqSource struct {
+	Multiaddr  [4]byte /* in_addr */
+	Sourceaddr [4]byte /* in_addr */
+	Interface  [4]byte /* in_addr */
+}
+
+type groupReq struct {
+	Interface uint32
+	Group     sockaddrStorage
+}
+
+type groupSourceReq struct {
+	Interface uint32
+	Group     sockaddrStorage
+	Source    sockaddrStorage
+}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_386.go b/vendor/golang.org/x/net/ipv4/zsys_linux_386.go
index c0260f0..1c7fdfa 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_386.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_386.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x104
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x8
 )
 
 type kernelSockaddrStorage struct {
@@ -133,16 +128,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [2]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_amd64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_amd64.go
index 9c967ea..a04e785 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_amd64.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_amd64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -135,16 +130,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_arm.go b/vendor/golang.org/x/net/ipv4/zsys_linux_arm.go
index c0260f0..1c7fdfa 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_arm.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_arm.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x104
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x8
 )
 
 type kernelSockaddrStorage struct {
@@ -133,16 +128,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [2]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_arm64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_arm64.go
index 9c967ea..a04e785 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_arm64.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_arm64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -135,16 +130,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_mips.go b/vendor/golang.org/x/net/ipv4/zsys_linux_mips.go
index c0260f0..1c7fdfa 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_mips.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_mips.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x104
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x8
 )
 
 type kernelSockaddrStorage struct {
@@ -133,16 +128,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [2]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_mips64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_mips64.go
index 9c967ea..a04e785 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_mips64.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_mips64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -135,16 +130,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_mips64le.go b/vendor/golang.org/x/net/ipv4/zsys_linux_mips64le.go
index 9c967ea..a04e785 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_mips64le.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_mips64le.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -135,16 +130,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_mipsle.go b/vendor/golang.org/x/net/ipv4/zsys_linux_mipsle.go
index c0260f0..1c7fdfa 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_mipsle.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_mipsle.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x104
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x8
 )
 
 type kernelSockaddrStorage struct {
@@ -133,16 +128,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [2]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc.go b/vendor/golang.org/x/net/ipv4/zsys_linux_ppc.go
index f65bd9a..3c5ea54 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_ppc.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x104
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x8
 )
 
 type kernelSockaddrStorage struct {
@@ -133,16 +128,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [2]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64.go
index 9c967ea..a04e785 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -135,16 +130,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64le.go b/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64le.go
index 9c967ea..a04e785 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64le.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64le.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -135,16 +130,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_riscv64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_riscv64.go
new file mode 100644
index 0000000..e626134
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_riscv64.go
@@ -0,0 +1,134 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_linux.go
+
+// +build riscv64
+
+package ipv4
+
+const (
+	sysIP_TOS             = 0x1
+	sysIP_TTL             = 0x2
+	sysIP_HDRINCL         = 0x3
+	sysIP_OPTIONS         = 0x4
+	sysIP_ROUTER_ALERT    = 0x5
+	sysIP_RECVOPTS        = 0x6
+	sysIP_RETOPTS         = 0x7
+	sysIP_PKTINFO         = 0x8
+	sysIP_PKTOPTIONS      = 0x9
+	sysIP_MTU_DISCOVER    = 0xa
+	sysIP_RECVERR         = 0xb
+	sysIP_RECVTTL         = 0xc
+	sysIP_RECVTOS         = 0xd
+	sysIP_MTU             = 0xe
+	sysIP_FREEBIND        = 0xf
+	sysIP_TRANSPARENT     = 0x13
+	sysIP_RECVRETOPTS     = 0x7
+	sysIP_ORIGDSTADDR     = 0x14
+	sysIP_RECVORIGDSTADDR = 0x14
+	sysIP_MINTTL          = 0x15
+	sysIP_NODEFRAG        = 0x16
+	sysIP_UNICAST_IF      = 0x32
+
+	sysIP_MULTICAST_IF           = 0x20
+	sysIP_MULTICAST_TTL          = 0x21
+	sysIP_MULTICAST_LOOP         = 0x22
+	sysIP_ADD_MEMBERSHIP         = 0x23
+	sysIP_DROP_MEMBERSHIP        = 0x24
+	sysIP_UNBLOCK_SOURCE         = 0x25
+	sysIP_BLOCK_SOURCE           = 0x26
+	sysIP_ADD_SOURCE_MEMBERSHIP  = 0x27
+	sysIP_DROP_SOURCE_MEMBERSHIP = 0x28
+	sysIP_MSFILTER               = 0x29
+	sysMCAST_JOIN_GROUP          = 0x2a
+	sysMCAST_LEAVE_GROUP         = 0x2d
+	sysMCAST_JOIN_SOURCE_GROUP   = 0x2e
+	sysMCAST_LEAVE_SOURCE_GROUP  = 0x2f
+	sysMCAST_BLOCK_SOURCE        = 0x2b
+	sysMCAST_UNBLOCK_SOURCE      = 0x2c
+	sysMCAST_MSFILTER            = 0x30
+	sysIP_MULTICAST_ALL          = 0x31
+
+	sysICMP_FILTER = 0x1
+
+	sysSO_EE_ORIGIN_NONE         = 0x0
+	sysSO_EE_ORIGIN_LOCAL        = 0x1
+	sysSO_EE_ORIGIN_ICMP         = 0x2
+	sysSO_EE_ORIGIN_ICMP6        = 0x3
+	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
+	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
+
+	sizeofKernelSockaddrStorage = 0x80
+	sizeofSockaddrInet          = 0x10
+	sizeofInetPktinfo           = 0xc
+	sizeofSockExtendedErr       = 0x10
+
+	sizeofIPMreq         = 0x8
+	sizeofIPMreqn        = 0xc
+	sizeofIPMreqSource   = 0xc
+	sizeofGroupReq       = 0x88
+	sizeofGroupSourceReq = 0x108
+
+	sizeofICMPFilter = 0x4
+)
+
+type kernelSockaddrStorage struct {
+	Family  uint16
+	X__data [126]int8
+}
+
+type sockaddrInet struct {
+	Family uint16
+	Port   uint16
+	Addr   [4]byte /* in_addr */
+	X__pad [8]uint8
+}
+
+type inetPktinfo struct {
+	Ifindex  int32
+	Spec_dst [4]byte /* in_addr */
+	Addr     [4]byte /* in_addr */
+}
+
+type sockExtendedErr struct {
+	Errno  uint32
+	Origin uint8
+	Type   uint8
+	Code   uint8
+	Pad    uint8
+	Info   uint32
+	Data   uint32
+}
+
+type ipMreq struct {
+	Multiaddr [4]byte /* in_addr */
+	Interface [4]byte /* in_addr */
+}
+
+type ipMreqn struct {
+	Multiaddr [4]byte /* in_addr */
+	Address   [4]byte /* in_addr */
+	Ifindex   int32
+}
+
+type ipMreqSource struct {
+	Multiaddr  uint32
+	Interface  uint32
+	Sourceaddr uint32
+}
+
+type groupReq struct {
+	Interface uint32
+	Pad_cgo_0 [4]byte
+	Group     kernelSockaddrStorage
+}
+
+type groupSourceReq struct {
+	Interface uint32
+	Pad_cgo_0 [4]byte
+	Group     kernelSockaddrStorage
+	Source    kernelSockaddrStorage
+}
+
+type icmpFilter struct {
+	Data uint32
+}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_s390x.go b/vendor/golang.org/x/net/ipv4/zsys_linux_s390x.go
index 9c967ea..a04e785 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_linux_s390x.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_linux_s390x.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv4
@@ -55,9 +55,6 @@ const (
 	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
 	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet          = 0x10
 	sizeofInetPktinfo           = 0xc
@@ -70,8 +67,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPFilter = 0x4
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -135,16 +130,3 @@ type groupSourceReq struct {
 type icmpFilter struct {
 	Data uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv4/zsys_netbsd.go b/vendor/golang.org/x/net/ipv4/zsys_netbsd.go
index fd3624d..8cfc648 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_netbsd.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_netbsd.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_netbsd.go
 
 package ipv4
diff --git a/vendor/golang.org/x/net/ipv4/zsys_openbsd.go b/vendor/golang.org/x/net/ipv4/zsys_openbsd.go
index 12f36be..37629cb 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_openbsd.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_openbsd.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_openbsd.go
 
 package ipv4
diff --git a/vendor/golang.org/x/net/ipv4/zsys_solaris.go b/vendor/golang.org/x/net/ipv4/zsys_solaris.go
index 0a3875c..cb80a30 100644
--- a/vendor/golang.org/x/net/ipv4/zsys_solaris.go
+++ b/vendor/golang.org/x/net/ipv4/zsys_solaris.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_solaris.go
 
 package ipv4
diff --git a/vendor/golang.org/x/net/ipv4/zsys_zos_s390x.go b/vendor/golang.org/x/net/ipv4/zsys_zos_s390x.go
new file mode 100644
index 0000000..4bbfda0
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/zsys_zos_s390x.go
@@ -0,0 +1,80 @@
+// Copyright 2020 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.
+
+// Hand edited based on zerrors_zos_s390x.go
+// TODO(Bill O'Farrell): auto-generate.
+
+package ipv4
+
+const (
+	sysIP_ADD_MEMBERSHIP         = 5
+	sysIP_ADD_SOURCE_MEMBERSHIP  = 12
+	sysIP_BLOCK_SOURCE           = 10
+	sysIP_DEFAULT_MULTICAST_LOOP = 1
+	sysIP_DEFAULT_MULTICAST_TTL  = 1
+	sysIP_DROP_MEMBERSHIP        = 6
+	sysIP_DROP_SOURCE_MEMBERSHIP = 13
+	sysIP_MAX_MEMBERSHIPS        = 20
+	sysIP_MULTICAST_IF           = 7
+	sysIP_MULTICAST_LOOP         = 4
+	sysIP_MULTICAST_TTL          = 3
+	sysIP_OPTIONS                = 1
+	sysIP_PKTINFO                = 101
+	sysIP_RECVPKTINFO            = 102
+	sysIP_TOS                    = 2
+	sysIP_UNBLOCK_SOURCE         = 11
+
+	sysMCAST_JOIN_GROUP         = 40
+	sysMCAST_LEAVE_GROUP        = 41
+	sysMCAST_JOIN_SOURCE_GROUP  = 42
+	sysMCAST_LEAVE_SOURCE_GROUP = 43
+	sysMCAST_BLOCK_SOURCE       = 44
+	sysMCAST_UNBLOCK_SOURCE     = 45
+
+	sizeofIPMreq          = 8
+	sizeofSockaddrInet4   = 16
+	sizeofSockaddrStorage = 128
+	sizeofGroupReq        = 136
+	sizeofGroupSourceReq  = 264
+	sizeofInetPktinfo     = 8
+)
+
+type sockaddrInet4 struct {
+	Len    uint8
+	Family uint8
+	Port   uint16
+	Addr   [4]byte
+	Zero   [8]uint8
+}
+
+type inetPktinfo struct {
+	Addr    [4]byte
+	Ifindex uint32
+}
+
+type sockaddrStorage struct {
+	Len      uint8
+	Family   byte
+	ss_pad1  [6]byte
+	ss_align int64
+	ss_pad2  [112]byte
+}
+
+type groupReq struct {
+	Interface uint32
+	reserved  uint32
+	Group     sockaddrStorage
+}
+
+type groupSourceReq struct {
+	Interface uint32
+	reserved  uint32
+	Group     sockaddrStorage
+	Source    sockaddrStorage
+}
+
+type ipMreq struct {
+	Multiaddr [4]byte /* in_addr */
+	Interface [4]byte /* in_addr */
+}
diff --git a/vendor/golang.org/x/net/ipv6/batch.go b/vendor/golang.org/x/net/ipv6/batch.go
index 4f5fe68..2ccb984 100644
--- a/vendor/golang.org/x/net/ipv6/batch.go
+++ b/vendor/golang.org/x/net/ipv6/batch.go
@@ -2,14 +2,11 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build go1.9
-
 package ipv6
 
 import (
 	"net"
 	"runtime"
-	"syscall"
 
 	"golang.org/x/net/internal/socket"
 )
@@ -67,7 +64,7 @@ type Message = socket.Message
 // On other platforms, this method will read only a single message.
 func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
@@ -98,7 +95,7 @@ func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) {
 // On other platforms, this method will write only a single message.
 func (c *payloadHandler) WriteBatch(ms []Message, flags int) (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	switch runtime.GOOS {
 	case "linux":
diff --git a/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go b/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go
index eec529c..77c449e 100644
--- a/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go
+++ b/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.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.
 
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 package ipv6
 
diff --git a/vendor/golang.org/x/net/ipv6/control_stub.go b/vendor/golang.org/x/net/ipv6/control_stub.go
index a045f28..e50b886 100644
--- a/vendor/golang.org/x/net/ipv6/control_stub.go
+++ b/vendor/golang.org/x/net/ipv6/control_stub.go
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
 
 package ipv6
 
 import "golang.org/x/net/internal/socket"
 
 func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv6/control_unix.go b/vendor/golang.org/x/net/ipv6/control_unix.go
index 6651506..ec31ca2 100644
--- a/vendor/golang.org/x/net/ipv6/control_unix.go
+++ b/vendor/golang.org/x/net/ipv6/control_unix.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.
 
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 package ipv6
 
diff --git a/vendor/golang.org/x/net/ipv6/control_windows.go b/vendor/golang.org/x/net/ipv6/control_windows.go
index ef2563b..8882d81 100644
--- a/vendor/golang.org/x/net/ipv6/control_windows.go
+++ b/vendor/golang.org/x/net/ipv6/control_windows.go
@@ -4,13 +4,9 @@
 
 package ipv6
 
-import (
-	"syscall"
-
-	"golang.org/x/net/internal/socket"
-)
+import "golang.org/x/net/internal/socket"
 
 func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error {
 	// TODO(mikio): implement this
-	return syscall.EWINDOWS
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv6/defs_darwin.go b/vendor/golang.org/x/net/ipv6/defs_darwin.go
deleted file mode 100644
index 55ddc11..0000000
--- a/vendor/golang.org/x/net/ipv6/defs_darwin.go
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package ipv6
-
-/*
-#define __APPLE_USE_RFC_3542
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-*/
-import "C"
-
-const (
-	sysIPV6_UNICAST_HOPS   = C.IPV6_UNICAST_HOPS
-	sysIPV6_MULTICAST_IF   = C.IPV6_MULTICAST_IF
-	sysIPV6_MULTICAST_HOPS = C.IPV6_MULTICAST_HOPS
-	sysIPV6_MULTICAST_LOOP = C.IPV6_MULTICAST_LOOP
-	sysIPV6_JOIN_GROUP     = C.IPV6_JOIN_GROUP
-	sysIPV6_LEAVE_GROUP    = C.IPV6_LEAVE_GROUP
-
-	sysIPV6_PORTRANGE    = C.IPV6_PORTRANGE
-	sysICMP6_FILTER      = C.ICMP6_FILTER
-	sysIPV6_2292PKTINFO  = C.IPV6_2292PKTINFO
-	sysIPV6_2292HOPLIMIT = C.IPV6_2292HOPLIMIT
-	sysIPV6_2292NEXTHOP  = C.IPV6_2292NEXTHOP
-	sysIPV6_2292HOPOPTS  = C.IPV6_2292HOPOPTS
-	sysIPV6_2292DSTOPTS  = C.IPV6_2292DSTOPTS
-	sysIPV6_2292RTHDR    = C.IPV6_2292RTHDR
-
-	sysIPV6_2292PKTOPTIONS = C.IPV6_2292PKTOPTIONS
-
-	sysIPV6_CHECKSUM = C.IPV6_CHECKSUM
-	sysIPV6_V6ONLY   = C.IPV6_V6ONLY
-
-	sysIPV6_IPSEC_POLICY = C.IPV6_IPSEC_POLICY
-
-	sysIPV6_RECVTCLASS = C.IPV6_RECVTCLASS
-	sysIPV6_TCLASS     = C.IPV6_TCLASS
-
-	sysIPV6_RTHDRDSTOPTS = C.IPV6_RTHDRDSTOPTS
-
-	sysIPV6_RECVPKTINFO = C.IPV6_RECVPKTINFO
-
-	sysIPV6_RECVHOPLIMIT = C.IPV6_RECVHOPLIMIT
-	sysIPV6_RECVRTHDR    = C.IPV6_RECVRTHDR
-	sysIPV6_RECVHOPOPTS  = C.IPV6_RECVHOPOPTS
-	sysIPV6_RECVDSTOPTS  = C.IPV6_RECVDSTOPTS
-
-	sysIPV6_USE_MIN_MTU = C.IPV6_USE_MIN_MTU
-	sysIPV6_RECVPATHMTU = C.IPV6_RECVPATHMTU
-
-	sysIPV6_PATHMTU = C.IPV6_PATHMTU
-
-	sysIPV6_PKTINFO  = C.IPV6_PKTINFO
-	sysIPV6_HOPLIMIT = C.IPV6_HOPLIMIT
-	sysIPV6_NEXTHOP  = C.IPV6_NEXTHOP
-	sysIPV6_HOPOPTS  = C.IPV6_HOPOPTS
-	sysIPV6_DSTOPTS  = C.IPV6_DSTOPTS
-	sysIPV6_RTHDR    = C.IPV6_RTHDR
-
-	sysIPV6_AUTOFLOWLABEL = C.IPV6_AUTOFLOWLABEL
-
-	sysIPV6_DONTFRAG = C.IPV6_DONTFRAG
-
-	sysIPV6_PREFER_TEMPADDR = C.IPV6_PREFER_TEMPADDR
-
-	sysIPV6_MSFILTER            = C.IPV6_MSFILTER
-	sysMCAST_JOIN_GROUP         = C.MCAST_JOIN_GROUP
-	sysMCAST_LEAVE_GROUP        = C.MCAST_LEAVE_GROUP
-	sysMCAST_JOIN_SOURCE_GROUP  = C.MCAST_JOIN_SOURCE_GROUP
-	sysMCAST_LEAVE_SOURCE_GROUP = C.MCAST_LEAVE_SOURCE_GROUP
-	sysMCAST_BLOCK_SOURCE       = C.MCAST_BLOCK_SOURCE
-	sysMCAST_UNBLOCK_SOURCE     = C.MCAST_UNBLOCK_SOURCE
-
-	sysIPV6_BOUND_IF = C.IPV6_BOUND_IF
-
-	sysIPV6_PORTRANGE_DEFAULT = C.IPV6_PORTRANGE_DEFAULT
-	sysIPV6_PORTRANGE_HIGH    = C.IPV6_PORTRANGE_HIGH
-	sysIPV6_PORTRANGE_LOW     = C.IPV6_PORTRANGE_LOW
-
-	sizeofSockaddrStorage = C.sizeof_struct_sockaddr_storage
-	sizeofSockaddrInet6   = C.sizeof_struct_sockaddr_in6
-	sizeofInet6Pktinfo    = C.sizeof_struct_in6_pktinfo
-	sizeofIPv6Mtuinfo     = C.sizeof_struct_ip6_mtuinfo
-
-	sizeofIPv6Mreq       = C.sizeof_struct_ipv6_mreq
-	sizeofGroupReq       = C.sizeof_struct_group_req
-	sizeofGroupSourceReq = C.sizeof_struct_group_source_req
-
-	sizeofICMPv6Filter = C.sizeof_struct_icmp6_filter
-)
-
-type sockaddrStorage C.struct_sockaddr_storage
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-type inet6Pktinfo C.struct_in6_pktinfo
-
-type ipv6Mtuinfo C.struct_ip6_mtuinfo
-
-type ipv6Mreq C.struct_ipv6_mreq
-
-type icmpv6Filter C.struct_icmp6_filter
-
-type groupReq C.struct_group_req
-
-type groupSourceReq C.struct_group_source_req
diff --git a/vendor/golang.org/x/net/ipv6/defs_dragonfly.go b/vendor/golang.org/x/net/ipv6/defs_dragonfly.go
deleted file mode 100644
index a4c383a..0000000
--- a/vendor/golang.org/x/net/ipv6/defs_dragonfly.go
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package ipv6
-
-/*
-#include <sys/param.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-*/
-import "C"
-
-const (
-	sysIPV6_UNICAST_HOPS   = C.IPV6_UNICAST_HOPS
-	sysIPV6_MULTICAST_IF   = C.IPV6_MULTICAST_IF
-	sysIPV6_MULTICAST_HOPS = C.IPV6_MULTICAST_HOPS
-	sysIPV6_MULTICAST_LOOP = C.IPV6_MULTICAST_LOOP
-	sysIPV6_JOIN_GROUP     = C.IPV6_JOIN_GROUP
-	sysIPV6_LEAVE_GROUP    = C.IPV6_LEAVE_GROUP
-	sysIPV6_PORTRANGE      = C.IPV6_PORTRANGE
-	sysICMP6_FILTER        = C.ICMP6_FILTER
-
-	sysIPV6_CHECKSUM = C.IPV6_CHECKSUM
-	sysIPV6_V6ONLY   = C.IPV6_V6ONLY
-
-	sysIPV6_IPSEC_POLICY = C.IPV6_IPSEC_POLICY
-
-	sysIPV6_RTHDRDSTOPTS = C.IPV6_RTHDRDSTOPTS
-	sysIPV6_RECVPKTINFO  = C.IPV6_RECVPKTINFO
-	sysIPV6_RECVHOPLIMIT = C.IPV6_RECVHOPLIMIT
-	sysIPV6_RECVRTHDR    = C.IPV6_RECVRTHDR
-	sysIPV6_RECVHOPOPTS  = C.IPV6_RECVHOPOPTS
-	sysIPV6_RECVDSTOPTS  = C.IPV6_RECVDSTOPTS
-
-	sysIPV6_USE_MIN_MTU = C.IPV6_USE_MIN_MTU
-	sysIPV6_RECVPATHMTU = C.IPV6_RECVPATHMTU
-
-	sysIPV6_PATHMTU = C.IPV6_PATHMTU
-
-	sysIPV6_PKTINFO  = C.IPV6_PKTINFO
-	sysIPV6_HOPLIMIT = C.IPV6_HOPLIMIT
-	sysIPV6_NEXTHOP  = C.IPV6_NEXTHOP
-	sysIPV6_HOPOPTS  = C.IPV6_HOPOPTS
-	sysIPV6_DSTOPTS  = C.IPV6_DSTOPTS
-	sysIPV6_RTHDR    = C.IPV6_RTHDR
-
-	sysIPV6_RECVTCLASS = C.IPV6_RECVTCLASS
-
-	sysIPV6_AUTOFLOWLABEL = C.IPV6_AUTOFLOWLABEL
-
-	sysIPV6_TCLASS   = C.IPV6_TCLASS
-	sysIPV6_DONTFRAG = C.IPV6_DONTFRAG
-
-	sysIPV6_PREFER_TEMPADDR = C.IPV6_PREFER_TEMPADDR
-
-	sysIPV6_PORTRANGE_DEFAULT = C.IPV6_PORTRANGE_DEFAULT
-	sysIPV6_PORTRANGE_HIGH    = C.IPV6_PORTRANGE_HIGH
-	sysIPV6_PORTRANGE_LOW     = C.IPV6_PORTRANGE_LOW
-
-	sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-	sizeofInet6Pktinfo  = C.sizeof_struct_in6_pktinfo
-	sizeofIPv6Mtuinfo   = C.sizeof_struct_ip6_mtuinfo
-
-	sizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq
-
-	sizeofICMPv6Filter = C.sizeof_struct_icmp6_filter
-)
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-type inet6Pktinfo C.struct_in6_pktinfo
-
-type ipv6Mtuinfo C.struct_ip6_mtuinfo
-
-type ipv6Mreq C.struct_ipv6_mreq
-
-type icmpv6Filter C.struct_icmp6_filter
diff --git a/vendor/golang.org/x/net/ipv6/defs_freebsd.go b/vendor/golang.org/x/net/ipv6/defs_freebsd.go
deleted file mode 100644
index 53e6253..0000000
--- a/vendor/golang.org/x/net/ipv6/defs_freebsd.go
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package ipv6
-
-/*
-#include <sys/param.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-*/
-import "C"
-
-const (
-	sysIPV6_UNICAST_HOPS   = C.IPV6_UNICAST_HOPS
-	sysIPV6_MULTICAST_IF   = C.IPV6_MULTICAST_IF
-	sysIPV6_MULTICAST_HOPS = C.IPV6_MULTICAST_HOPS
-	sysIPV6_MULTICAST_LOOP = C.IPV6_MULTICAST_LOOP
-	sysIPV6_JOIN_GROUP     = C.IPV6_JOIN_GROUP
-	sysIPV6_LEAVE_GROUP    = C.IPV6_LEAVE_GROUP
-	sysIPV6_PORTRANGE      = C.IPV6_PORTRANGE
-	sysICMP6_FILTER        = C.ICMP6_FILTER
-
-	sysIPV6_CHECKSUM = C.IPV6_CHECKSUM
-	sysIPV6_V6ONLY   = C.IPV6_V6ONLY
-
-	sysIPV6_IPSEC_POLICY = C.IPV6_IPSEC_POLICY
-
-	sysIPV6_RTHDRDSTOPTS = C.IPV6_RTHDRDSTOPTS
-
-	sysIPV6_RECVPKTINFO  = C.IPV6_RECVPKTINFO
-	sysIPV6_RECVHOPLIMIT = C.IPV6_RECVHOPLIMIT
-	sysIPV6_RECVRTHDR    = C.IPV6_RECVRTHDR
-	sysIPV6_RECVHOPOPTS  = C.IPV6_RECVHOPOPTS
-	sysIPV6_RECVDSTOPTS  = C.IPV6_RECVDSTOPTS
-
-	sysIPV6_USE_MIN_MTU = C.IPV6_USE_MIN_MTU
-	sysIPV6_RECVPATHMTU = C.IPV6_RECVPATHMTU
-
-	sysIPV6_PATHMTU = C.IPV6_PATHMTU
-
-	sysIPV6_PKTINFO  = C.IPV6_PKTINFO
-	sysIPV6_HOPLIMIT = C.IPV6_HOPLIMIT
-	sysIPV6_NEXTHOP  = C.IPV6_NEXTHOP
-	sysIPV6_HOPOPTS  = C.IPV6_HOPOPTS
-	sysIPV6_DSTOPTS  = C.IPV6_DSTOPTS
-	sysIPV6_RTHDR    = C.IPV6_RTHDR
-
-	sysIPV6_RECVTCLASS = C.IPV6_RECVTCLASS
-
-	sysIPV6_AUTOFLOWLABEL = C.IPV6_AUTOFLOWLABEL
-
-	sysIPV6_TCLASS   = C.IPV6_TCLASS
-	sysIPV6_DONTFRAG = C.IPV6_DONTFRAG
-
-	sysIPV6_PREFER_TEMPADDR = C.IPV6_PREFER_TEMPADDR
-
-	sysIPV6_BINDANY = C.IPV6_BINDANY
-
-	sysIPV6_MSFILTER = C.IPV6_MSFILTER
-
-	sysMCAST_JOIN_GROUP         = C.MCAST_JOIN_GROUP
-	sysMCAST_LEAVE_GROUP        = C.MCAST_LEAVE_GROUP
-	sysMCAST_JOIN_SOURCE_GROUP  = C.MCAST_JOIN_SOURCE_GROUP
-	sysMCAST_LEAVE_SOURCE_GROUP = C.MCAST_LEAVE_SOURCE_GROUP
-	sysMCAST_BLOCK_SOURCE       = C.MCAST_BLOCK_SOURCE
-	sysMCAST_UNBLOCK_SOURCE     = C.MCAST_UNBLOCK_SOURCE
-
-	sysIPV6_PORTRANGE_DEFAULT = C.IPV6_PORTRANGE_DEFAULT
-	sysIPV6_PORTRANGE_HIGH    = C.IPV6_PORTRANGE_HIGH
-	sysIPV6_PORTRANGE_LOW     = C.IPV6_PORTRANGE_LOW
-
-	sizeofSockaddrStorage = C.sizeof_struct_sockaddr_storage
-	sizeofSockaddrInet6   = C.sizeof_struct_sockaddr_in6
-	sizeofInet6Pktinfo    = C.sizeof_struct_in6_pktinfo
-	sizeofIPv6Mtuinfo     = C.sizeof_struct_ip6_mtuinfo
-
-	sizeofIPv6Mreq       = C.sizeof_struct_ipv6_mreq
-	sizeofGroupReq       = C.sizeof_struct_group_req
-	sizeofGroupSourceReq = C.sizeof_struct_group_source_req
-
-	sizeofICMPv6Filter = C.sizeof_struct_icmp6_filter
-)
-
-type sockaddrStorage C.struct_sockaddr_storage
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-type inet6Pktinfo C.struct_in6_pktinfo
-
-type ipv6Mtuinfo C.struct_ip6_mtuinfo
-
-type ipv6Mreq C.struct_ipv6_mreq
-
-type groupReq C.struct_group_req
-
-type groupSourceReq C.struct_group_source_req
-
-type icmpv6Filter C.struct_icmp6_filter
diff --git a/vendor/golang.org/x/net/ipv6/defs_linux.go b/vendor/golang.org/x/net/ipv6/defs_linux.go
deleted file mode 100644
index 3308cb2..0000000
--- a/vendor/golang.org/x/net/ipv6/defs_linux.go
+++ /dev/null
@@ -1,147 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package ipv6
-
-/*
-#include <linux/in.h>
-#include <linux/in6.h>
-#include <linux/ipv6.h>
-#include <linux/icmpv6.h>
-#include <linux/filter.h>
-#include <sys/socket.h>
-*/
-import "C"
-
-const (
-	sysIPV6_ADDRFORM       = C.IPV6_ADDRFORM
-	sysIPV6_2292PKTINFO    = C.IPV6_2292PKTINFO
-	sysIPV6_2292HOPOPTS    = C.IPV6_2292HOPOPTS
-	sysIPV6_2292DSTOPTS    = C.IPV6_2292DSTOPTS
-	sysIPV6_2292RTHDR      = C.IPV6_2292RTHDR
-	sysIPV6_2292PKTOPTIONS = C.IPV6_2292PKTOPTIONS
-	sysIPV6_CHECKSUM       = C.IPV6_CHECKSUM
-	sysIPV6_2292HOPLIMIT   = C.IPV6_2292HOPLIMIT
-	sysIPV6_NEXTHOP        = C.IPV6_NEXTHOP
-	sysIPV6_FLOWINFO       = C.IPV6_FLOWINFO
-
-	sysIPV6_UNICAST_HOPS        = C.IPV6_UNICAST_HOPS
-	sysIPV6_MULTICAST_IF        = C.IPV6_MULTICAST_IF
-	sysIPV6_MULTICAST_HOPS      = C.IPV6_MULTICAST_HOPS
-	sysIPV6_MULTICAST_LOOP      = C.IPV6_MULTICAST_LOOP
-	sysIPV6_ADD_MEMBERSHIP      = C.IPV6_ADD_MEMBERSHIP
-	sysIPV6_DROP_MEMBERSHIP     = C.IPV6_DROP_MEMBERSHIP
-	sysMCAST_JOIN_GROUP         = C.MCAST_JOIN_GROUP
-	sysMCAST_LEAVE_GROUP        = C.MCAST_LEAVE_GROUP
-	sysMCAST_JOIN_SOURCE_GROUP  = C.MCAST_JOIN_SOURCE_GROUP
-	sysMCAST_LEAVE_SOURCE_GROUP = C.MCAST_LEAVE_SOURCE_GROUP
-	sysMCAST_BLOCK_SOURCE       = C.MCAST_BLOCK_SOURCE
-	sysMCAST_UNBLOCK_SOURCE     = C.MCAST_UNBLOCK_SOURCE
-	sysMCAST_MSFILTER           = C.MCAST_MSFILTER
-	sysIPV6_ROUTER_ALERT        = C.IPV6_ROUTER_ALERT
-	sysIPV6_MTU_DISCOVER        = C.IPV6_MTU_DISCOVER
-	sysIPV6_MTU                 = C.IPV6_MTU
-	sysIPV6_RECVERR             = C.IPV6_RECVERR
-	sysIPV6_V6ONLY              = C.IPV6_V6ONLY
-	sysIPV6_JOIN_ANYCAST        = C.IPV6_JOIN_ANYCAST
-	sysIPV6_LEAVE_ANYCAST       = C.IPV6_LEAVE_ANYCAST
-
-	//sysIPV6_PMTUDISC_DONT      = C.IPV6_PMTUDISC_DONT
-	//sysIPV6_PMTUDISC_WANT      = C.IPV6_PMTUDISC_WANT
-	//sysIPV6_PMTUDISC_DO        = C.IPV6_PMTUDISC_DO
-	//sysIPV6_PMTUDISC_PROBE     = C.IPV6_PMTUDISC_PROBE
-	//sysIPV6_PMTUDISC_INTERFACE = C.IPV6_PMTUDISC_INTERFACE
-	//sysIPV6_PMTUDISC_OMIT      = C.IPV6_PMTUDISC_OMIT
-
-	sysIPV6_FLOWLABEL_MGR = C.IPV6_FLOWLABEL_MGR
-	sysIPV6_FLOWINFO_SEND = C.IPV6_FLOWINFO_SEND
-
-	sysIPV6_IPSEC_POLICY = C.IPV6_IPSEC_POLICY
-	sysIPV6_XFRM_POLICY  = C.IPV6_XFRM_POLICY
-
-	sysIPV6_RECVPKTINFO  = C.IPV6_RECVPKTINFO
-	sysIPV6_PKTINFO      = C.IPV6_PKTINFO
-	sysIPV6_RECVHOPLIMIT = C.IPV6_RECVHOPLIMIT
-	sysIPV6_HOPLIMIT     = C.IPV6_HOPLIMIT
-	sysIPV6_RECVHOPOPTS  = C.IPV6_RECVHOPOPTS
-	sysIPV6_HOPOPTS      = C.IPV6_HOPOPTS
-	sysIPV6_RTHDRDSTOPTS = C.IPV6_RTHDRDSTOPTS
-	sysIPV6_RECVRTHDR    = C.IPV6_RECVRTHDR
-	sysIPV6_RTHDR        = C.IPV6_RTHDR
-	sysIPV6_RECVDSTOPTS  = C.IPV6_RECVDSTOPTS
-	sysIPV6_DSTOPTS      = C.IPV6_DSTOPTS
-	sysIPV6_RECVPATHMTU  = C.IPV6_RECVPATHMTU
-	sysIPV6_PATHMTU      = C.IPV6_PATHMTU
-	sysIPV6_DONTFRAG     = C.IPV6_DONTFRAG
-
-	sysIPV6_RECVTCLASS = C.IPV6_RECVTCLASS
-	sysIPV6_TCLASS     = C.IPV6_TCLASS
-
-	sysIPV6_ADDR_PREFERENCES = C.IPV6_ADDR_PREFERENCES
-
-	sysIPV6_PREFER_SRC_TMP            = C.IPV6_PREFER_SRC_TMP
-	sysIPV6_PREFER_SRC_PUBLIC         = C.IPV6_PREFER_SRC_PUBLIC
-	sysIPV6_PREFER_SRC_PUBTMP_DEFAULT = C.IPV6_PREFER_SRC_PUBTMP_DEFAULT
-	sysIPV6_PREFER_SRC_COA            = C.IPV6_PREFER_SRC_COA
-	sysIPV6_PREFER_SRC_HOME           = C.IPV6_PREFER_SRC_HOME
-	sysIPV6_PREFER_SRC_CGA            = C.IPV6_PREFER_SRC_CGA
-	sysIPV6_PREFER_SRC_NONCGA         = C.IPV6_PREFER_SRC_NONCGA
-
-	sysIPV6_MINHOPCOUNT = C.IPV6_MINHOPCOUNT
-
-	sysIPV6_ORIGDSTADDR     = C.IPV6_ORIGDSTADDR
-	sysIPV6_RECVORIGDSTADDR = C.IPV6_RECVORIGDSTADDR
-	sysIPV6_TRANSPARENT     = C.IPV6_TRANSPARENT
-	sysIPV6_UNICAST_IF      = C.IPV6_UNICAST_IF
-
-	sysICMPV6_FILTER = C.ICMPV6_FILTER
-
-	sysICMPV6_FILTER_BLOCK       = C.ICMPV6_FILTER_BLOCK
-	sysICMPV6_FILTER_PASS        = C.ICMPV6_FILTER_PASS
-	sysICMPV6_FILTER_BLOCKOTHERS = C.ICMPV6_FILTER_BLOCKOTHERS
-	sysICMPV6_FILTER_PASSONLY    = C.ICMPV6_FILTER_PASSONLY
-
-	sysSOL_SOCKET       = C.SOL_SOCKET
-	sysSO_ATTACH_FILTER = C.SO_ATTACH_FILTER
-
-	sizeofKernelSockaddrStorage = C.sizeof_struct___kernel_sockaddr_storage
-	sizeofSockaddrInet6         = C.sizeof_struct_sockaddr_in6
-	sizeofInet6Pktinfo          = C.sizeof_struct_in6_pktinfo
-	sizeofIPv6Mtuinfo           = C.sizeof_struct_ip6_mtuinfo
-	sizeofIPv6FlowlabelReq      = C.sizeof_struct_in6_flowlabel_req
-
-	sizeofIPv6Mreq       = C.sizeof_struct_ipv6_mreq
-	sizeofGroupReq       = C.sizeof_struct_group_req
-	sizeofGroupSourceReq = C.sizeof_struct_group_source_req
-
-	sizeofICMPv6Filter = C.sizeof_struct_icmp6_filter
-
-	sizeofSockFprog = C.sizeof_struct_sock_fprog
-)
-
-type kernelSockaddrStorage C.struct___kernel_sockaddr_storage
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-type inet6Pktinfo C.struct_in6_pktinfo
-
-type ipv6Mtuinfo C.struct_ip6_mtuinfo
-
-type ipv6FlowlabelReq C.struct_in6_flowlabel_req
-
-type ipv6Mreq C.struct_ipv6_mreq
-
-type groupReq C.struct_group_req
-
-type groupSourceReq C.struct_group_source_req
-
-type icmpv6Filter C.struct_icmp6_filter
-
-type sockFProg C.struct_sock_fprog
-
-type sockFilter C.struct_sock_filter
diff --git a/vendor/golang.org/x/net/ipv6/defs_netbsd.go b/vendor/golang.org/x/net/ipv6/defs_netbsd.go
deleted file mode 100644
index be9ceb9..0000000
--- a/vendor/golang.org/x/net/ipv6/defs_netbsd.go
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package ipv6
-
-/*
-#include <sys/param.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-*/
-import "C"
-
-const (
-	sysIPV6_UNICAST_HOPS   = C.IPV6_UNICAST_HOPS
-	sysIPV6_MULTICAST_IF   = C.IPV6_MULTICAST_IF
-	sysIPV6_MULTICAST_HOPS = C.IPV6_MULTICAST_HOPS
-	sysIPV6_MULTICAST_LOOP = C.IPV6_MULTICAST_LOOP
-	sysIPV6_JOIN_GROUP     = C.IPV6_JOIN_GROUP
-	sysIPV6_LEAVE_GROUP    = C.IPV6_LEAVE_GROUP
-	sysIPV6_PORTRANGE      = C.IPV6_PORTRANGE
-	sysICMP6_FILTER        = C.ICMP6_FILTER
-
-	sysIPV6_CHECKSUM = C.IPV6_CHECKSUM
-	sysIPV6_V6ONLY   = C.IPV6_V6ONLY
-
-	sysIPV6_IPSEC_POLICY = C.IPV6_IPSEC_POLICY
-
-	sysIPV6_RTHDRDSTOPTS = C.IPV6_RTHDRDSTOPTS
-
-	sysIPV6_RECVPKTINFO  = C.IPV6_RECVPKTINFO
-	sysIPV6_RECVHOPLIMIT = C.IPV6_RECVHOPLIMIT
-	sysIPV6_RECVRTHDR    = C.IPV6_RECVRTHDR
-	sysIPV6_RECVHOPOPTS  = C.IPV6_RECVHOPOPTS
-	sysIPV6_RECVDSTOPTS  = C.IPV6_RECVDSTOPTS
-
-	sysIPV6_USE_MIN_MTU = C.IPV6_USE_MIN_MTU
-	sysIPV6_RECVPATHMTU = C.IPV6_RECVPATHMTU
-	sysIPV6_PATHMTU     = C.IPV6_PATHMTU
-
-	sysIPV6_PKTINFO  = C.IPV6_PKTINFO
-	sysIPV6_HOPLIMIT = C.IPV6_HOPLIMIT
-	sysIPV6_NEXTHOP  = C.IPV6_NEXTHOP
-	sysIPV6_HOPOPTS  = C.IPV6_HOPOPTS
-	sysIPV6_DSTOPTS  = C.IPV6_DSTOPTS
-	sysIPV6_RTHDR    = C.IPV6_RTHDR
-
-	sysIPV6_RECVTCLASS = C.IPV6_RECVTCLASS
-
-	sysIPV6_TCLASS   = C.IPV6_TCLASS
-	sysIPV6_DONTFRAG = C.IPV6_DONTFRAG
-
-	sysIPV6_PORTRANGE_DEFAULT = C.IPV6_PORTRANGE_DEFAULT
-	sysIPV6_PORTRANGE_HIGH    = C.IPV6_PORTRANGE_HIGH
-	sysIPV6_PORTRANGE_LOW     = C.IPV6_PORTRANGE_LOW
-
-	sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-	sizeofInet6Pktinfo  = C.sizeof_struct_in6_pktinfo
-	sizeofIPv6Mtuinfo   = C.sizeof_struct_ip6_mtuinfo
-
-	sizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq
-
-	sizeofICMPv6Filter = C.sizeof_struct_icmp6_filter
-)
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-type inet6Pktinfo C.struct_in6_pktinfo
-
-type ipv6Mtuinfo C.struct_ip6_mtuinfo
-
-type ipv6Mreq C.struct_ipv6_mreq
-
-type icmpv6Filter C.struct_icmp6_filter
diff --git a/vendor/golang.org/x/net/ipv6/defs_openbsd.go b/vendor/golang.org/x/net/ipv6/defs_openbsd.go
deleted file mode 100644
index 177ddf8..0000000
--- a/vendor/golang.org/x/net/ipv6/defs_openbsd.go
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package ipv6
-
-/*
-#include <sys/param.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-*/
-import "C"
-
-const (
-	sysIPV6_UNICAST_HOPS   = C.IPV6_UNICAST_HOPS
-	sysIPV6_MULTICAST_IF   = C.IPV6_MULTICAST_IF
-	sysIPV6_MULTICAST_HOPS = C.IPV6_MULTICAST_HOPS
-	sysIPV6_MULTICAST_LOOP = C.IPV6_MULTICAST_LOOP
-	sysIPV6_JOIN_GROUP     = C.IPV6_JOIN_GROUP
-	sysIPV6_LEAVE_GROUP    = C.IPV6_LEAVE_GROUP
-	sysIPV6_PORTRANGE      = C.IPV6_PORTRANGE
-	sysICMP6_FILTER        = C.ICMP6_FILTER
-
-	sysIPV6_CHECKSUM = C.IPV6_CHECKSUM
-	sysIPV6_V6ONLY   = C.IPV6_V6ONLY
-
-	sysIPV6_RTHDRDSTOPTS = C.IPV6_RTHDRDSTOPTS
-
-	sysIPV6_RECVPKTINFO  = C.IPV6_RECVPKTINFO
-	sysIPV6_RECVHOPLIMIT = C.IPV6_RECVHOPLIMIT
-	sysIPV6_RECVRTHDR    = C.IPV6_RECVRTHDR
-	sysIPV6_RECVHOPOPTS  = C.IPV6_RECVHOPOPTS
-	sysIPV6_RECVDSTOPTS  = C.IPV6_RECVDSTOPTS
-
-	sysIPV6_USE_MIN_MTU = C.IPV6_USE_MIN_MTU
-	sysIPV6_RECVPATHMTU = C.IPV6_RECVPATHMTU
-
-	sysIPV6_PATHMTU = C.IPV6_PATHMTU
-
-	sysIPV6_PKTINFO  = C.IPV6_PKTINFO
-	sysIPV6_HOPLIMIT = C.IPV6_HOPLIMIT
-	sysIPV6_NEXTHOP  = C.IPV6_NEXTHOP
-	sysIPV6_HOPOPTS  = C.IPV6_HOPOPTS
-	sysIPV6_DSTOPTS  = C.IPV6_DSTOPTS
-	sysIPV6_RTHDR    = C.IPV6_RTHDR
-
-	sysIPV6_AUTH_LEVEL        = C.IPV6_AUTH_LEVEL
-	sysIPV6_ESP_TRANS_LEVEL   = C.IPV6_ESP_TRANS_LEVEL
-	sysIPV6_ESP_NETWORK_LEVEL = C.IPV6_ESP_NETWORK_LEVEL
-	sysIPSEC6_OUTSA           = C.IPSEC6_OUTSA
-	sysIPV6_RECVTCLASS        = C.IPV6_RECVTCLASS
-
-	sysIPV6_AUTOFLOWLABEL = C.IPV6_AUTOFLOWLABEL
-	sysIPV6_IPCOMP_LEVEL  = C.IPV6_IPCOMP_LEVEL
-
-	sysIPV6_TCLASS   = C.IPV6_TCLASS
-	sysIPV6_DONTFRAG = C.IPV6_DONTFRAG
-	sysIPV6_PIPEX    = C.IPV6_PIPEX
-
-	sysIPV6_RTABLE = C.IPV6_RTABLE
-
-	sysIPV6_PORTRANGE_DEFAULT = C.IPV6_PORTRANGE_DEFAULT
-	sysIPV6_PORTRANGE_HIGH    = C.IPV6_PORTRANGE_HIGH
-	sysIPV6_PORTRANGE_LOW     = C.IPV6_PORTRANGE_LOW
-
-	sizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6
-	sizeofInet6Pktinfo  = C.sizeof_struct_in6_pktinfo
-	sizeofIPv6Mtuinfo   = C.sizeof_struct_ip6_mtuinfo
-
-	sizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq
-
-	sizeofICMPv6Filter = C.sizeof_struct_icmp6_filter
-)
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-type inet6Pktinfo C.struct_in6_pktinfo
-
-type ipv6Mtuinfo C.struct_ip6_mtuinfo
-
-type ipv6Mreq C.struct_ipv6_mreq
-
-type icmpv6Filter C.struct_icmp6_filter
diff --git a/vendor/golang.org/x/net/ipv6/defs_solaris.go b/vendor/golang.org/x/net/ipv6/defs_solaris.go
deleted file mode 100644
index 0f8ce2b..0000000
--- a/vendor/golang.org/x/net/ipv6/defs_solaris.go
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright 2014 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.
-
-// +build ignore
-
-// +godefs map struct_in6_addr [16]byte /* in6_addr */
-
-package ipv6
-
-/*
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include <netinet/icmp6.h>
-*/
-import "C"
-
-const (
-	sysIPV6_UNICAST_HOPS   = C.IPV6_UNICAST_HOPS
-	sysIPV6_MULTICAST_IF   = C.IPV6_MULTICAST_IF
-	sysIPV6_MULTICAST_HOPS = C.IPV6_MULTICAST_HOPS
-	sysIPV6_MULTICAST_LOOP = C.IPV6_MULTICAST_LOOP
-	sysIPV6_JOIN_GROUP     = C.IPV6_JOIN_GROUP
-	sysIPV6_LEAVE_GROUP    = C.IPV6_LEAVE_GROUP
-
-	sysIPV6_PKTINFO = C.IPV6_PKTINFO
-
-	sysIPV6_HOPLIMIT = C.IPV6_HOPLIMIT
-	sysIPV6_NEXTHOP  = C.IPV6_NEXTHOP
-	sysIPV6_HOPOPTS  = C.IPV6_HOPOPTS
-	sysIPV6_DSTOPTS  = C.IPV6_DSTOPTS
-
-	sysIPV6_RTHDR        = C.IPV6_RTHDR
-	sysIPV6_RTHDRDSTOPTS = C.IPV6_RTHDRDSTOPTS
-
-	sysIPV6_RECVPKTINFO  = C.IPV6_RECVPKTINFO
-	sysIPV6_RECVHOPLIMIT = C.IPV6_RECVHOPLIMIT
-	sysIPV6_RECVHOPOPTS  = C.IPV6_RECVHOPOPTS
-
-	sysIPV6_RECVRTHDR = C.IPV6_RECVRTHDR
-
-	sysIPV6_RECVRTHDRDSTOPTS = C.IPV6_RECVRTHDRDSTOPTS
-
-	sysIPV6_CHECKSUM        = C.IPV6_CHECKSUM
-	sysIPV6_RECVTCLASS      = C.IPV6_RECVTCLASS
-	sysIPV6_USE_MIN_MTU     = C.IPV6_USE_MIN_MTU
-	sysIPV6_DONTFRAG        = C.IPV6_DONTFRAG
-	sysIPV6_SEC_OPT         = C.IPV6_SEC_OPT
-	sysIPV6_SRC_PREFERENCES = C.IPV6_SRC_PREFERENCES
-	sysIPV6_RECVPATHMTU     = C.IPV6_RECVPATHMTU
-	sysIPV6_PATHMTU         = C.IPV6_PATHMTU
-	sysIPV6_TCLASS          = C.IPV6_TCLASS
-	sysIPV6_V6ONLY          = C.IPV6_V6ONLY
-
-	sysIPV6_RECVDSTOPTS = C.IPV6_RECVDSTOPTS
-
-	sysMCAST_JOIN_GROUP         = C.MCAST_JOIN_GROUP
-	sysMCAST_LEAVE_GROUP        = C.MCAST_LEAVE_GROUP
-	sysMCAST_BLOCK_SOURCE       = C.MCAST_BLOCK_SOURCE
-	sysMCAST_UNBLOCK_SOURCE     = C.MCAST_UNBLOCK_SOURCE
-	sysMCAST_JOIN_SOURCE_GROUP  = C.MCAST_JOIN_SOURCE_GROUP
-	sysMCAST_LEAVE_SOURCE_GROUP = C.MCAST_LEAVE_SOURCE_GROUP
-
-	sysIPV6_PREFER_SRC_HOME   = C.IPV6_PREFER_SRC_HOME
-	sysIPV6_PREFER_SRC_COA    = C.IPV6_PREFER_SRC_COA
-	sysIPV6_PREFER_SRC_PUBLIC = C.IPV6_PREFER_SRC_PUBLIC
-	sysIPV6_PREFER_SRC_TMP    = C.IPV6_PREFER_SRC_TMP
-	sysIPV6_PREFER_SRC_NONCGA = C.IPV6_PREFER_SRC_NONCGA
-	sysIPV6_PREFER_SRC_CGA    = C.IPV6_PREFER_SRC_CGA
-
-	sysIPV6_PREFER_SRC_MIPMASK    = C.IPV6_PREFER_SRC_MIPMASK
-	sysIPV6_PREFER_SRC_MIPDEFAULT = C.IPV6_PREFER_SRC_MIPDEFAULT
-	sysIPV6_PREFER_SRC_TMPMASK    = C.IPV6_PREFER_SRC_TMPMASK
-	sysIPV6_PREFER_SRC_TMPDEFAULT = C.IPV6_PREFER_SRC_TMPDEFAULT
-	sysIPV6_PREFER_SRC_CGAMASK    = C.IPV6_PREFER_SRC_CGAMASK
-	sysIPV6_PREFER_SRC_CGADEFAULT = C.IPV6_PREFER_SRC_CGADEFAULT
-
-	sysIPV6_PREFER_SRC_MASK = C.IPV6_PREFER_SRC_MASK
-
-	sysIPV6_PREFER_SRC_DEFAULT = C.IPV6_PREFER_SRC_DEFAULT
-
-	sysIPV6_BOUND_IF   = C.IPV6_BOUND_IF
-	sysIPV6_UNSPEC_SRC = C.IPV6_UNSPEC_SRC
-
-	sysICMP6_FILTER = C.ICMP6_FILTER
-
-	sizeofSockaddrStorage = C.sizeof_struct_sockaddr_storage
-	sizeofSockaddrInet6   = C.sizeof_struct_sockaddr_in6
-	sizeofInet6Pktinfo    = C.sizeof_struct_in6_pktinfo
-	sizeofIPv6Mtuinfo     = C.sizeof_struct_ip6_mtuinfo
-
-	sizeofIPv6Mreq       = C.sizeof_struct_ipv6_mreq
-	sizeofGroupReq       = C.sizeof_struct_group_req
-	sizeofGroupSourceReq = C.sizeof_struct_group_source_req
-
-	sizeofICMPv6Filter = C.sizeof_struct_icmp6_filter
-)
-
-type sockaddrStorage C.struct_sockaddr_storage
-
-type sockaddrInet6 C.struct_sockaddr_in6
-
-type inet6Pktinfo C.struct_in6_pktinfo
-
-type ipv6Mtuinfo C.struct_ip6_mtuinfo
-
-type ipv6Mreq C.struct_ipv6_mreq
-
-type groupReq C.struct_group_req
-
-type groupSourceReq C.struct_group_source_req
-
-type icmpv6Filter C.struct_icmp6_filter
diff --git a/vendor/golang.org/x/net/ipv6/dgramopt.go b/vendor/golang.org/x/net/ipv6/dgramopt.go
index 703dafe..1f422e7 100644
--- a/vendor/golang.org/x/net/ipv6/dgramopt.go
+++ b/vendor/golang.org/x/net/ipv6/dgramopt.go
@@ -6,7 +6,6 @@ package ipv6
 
 import (
 	"net"
-	"syscall"
 
 	"golang.org/x/net/bpf"
 )
@@ -15,11 +14,11 @@ import (
 // multicast packets.
 func (c *dgramOpt) MulticastHopLimit() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastHopLimit]
 	if !ok {
-		return 0, errOpNoSupport
+		return 0, errNotImplemented
 	}
 	return so.GetInt(c.Conn)
 }
@@ -28,11 +27,11 @@ func (c *dgramOpt) MulticastHopLimit() (int, error) {
 // outgoing multicast packets.
 func (c *dgramOpt) SetMulticastHopLimit(hoplim int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastHopLimit]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.SetInt(c.Conn, hoplim)
 }
@@ -41,11 +40,11 @@ func (c *dgramOpt) SetMulticastHopLimit(hoplim int) error {
 // packet transmissions.
 func (c *dgramOpt) MulticastInterface() (*net.Interface, error) {
 	if !c.ok() {
-		return nil, syscall.EINVAL
+		return nil, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastInterface]
 	if !ok {
-		return nil, errOpNoSupport
+		return nil, errNotImplemented
 	}
 	return so.getMulticastInterface(c.Conn)
 }
@@ -54,11 +53,11 @@ func (c *dgramOpt) MulticastInterface() (*net.Interface, error) {
 // multicast packet transmissions.
 func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastInterface]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.setMulticastInterface(c.Conn, ifi)
 }
@@ -67,11 +66,11 @@ func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error {
 // should be copied and send back to the originator.
 func (c *dgramOpt) MulticastLoopback() (bool, error) {
 	if !c.ok() {
-		return false, syscall.EINVAL
+		return false, errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastLoopback]
 	if !ok {
-		return false, errOpNoSupport
+		return false, errNotImplemented
 	}
 	on, err := so.GetInt(c.Conn)
 	if err != nil {
@@ -84,11 +83,11 @@ func (c *dgramOpt) MulticastLoopback() (bool, error) {
 // should be copied and send back to the originator.
 func (c *dgramOpt) SetMulticastLoopback(on bool) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoMulticastLoopback]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.SetInt(c.Conn, boolint(on))
 }
@@ -104,11 +103,11 @@ func (c *dgramOpt) SetMulticastLoopback(on bool) error {
 // configuration.
 func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoJoinGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP16(group)
 	if grp == nil {
@@ -122,11 +121,11 @@ func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error {
 // source-specific group.
 func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoLeaveGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP16(group)
 	if grp == nil {
@@ -143,11 +142,11 @@ func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error {
 // routing configuration.
 func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoJoinSourceGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP16(group)
 	if grp == nil {
@@ -164,11 +163,11 @@ func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net
 // interface ifi.
 func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoLeaveSourceGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP16(group)
 	if grp == nil {
@@ -186,11 +185,11 @@ func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source ne
 // ifi.
 func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoBlockSourceGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP16(group)
 	if grp == nil {
@@ -207,11 +206,11 @@ func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source
 // group by ExcludeSourceSpecificGroup again on the interface ifi.
 func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoUnblockSourceGroup]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	grp := netAddrToIP16(group)
 	if grp == nil {
@@ -230,11 +229,11 @@ func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source
 // field is located.
 func (c *dgramOpt) Checksum() (on bool, offset int, err error) {
 	if !c.ok() {
-		return false, 0, syscall.EINVAL
+		return false, 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoChecksum]
 	if !ok {
-		return false, 0, errOpNoSupport
+		return false, 0, errNotImplemented
 	}
 	offset, err = so.GetInt(c.Conn)
 	if err != nil {
@@ -251,11 +250,11 @@ func (c *dgramOpt) Checksum() (on bool, offset int, err error) {
 // checksum field is located.
 func (c *dgramOpt) SetChecksum(on bool, offset int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoChecksum]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	if !on {
 		offset = -1
@@ -266,11 +265,11 @@ func (c *dgramOpt) SetChecksum(on bool, offset int) error {
 // ICMPFilter returns an ICMP filter.
 func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) {
 	if !c.ok() {
-		return nil, syscall.EINVAL
+		return nil, errInvalidConn
 	}
 	so, ok := sockOpts[ssoICMPFilter]
 	if !ok {
-		return nil, errOpNoSupport
+		return nil, errNotImplemented
 	}
 	return so.getICMPFilter(c.Conn)
 }
@@ -278,11 +277,11 @@ func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) {
 // SetICMPFilter deploys the ICMP filter.
 func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoICMPFilter]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.setICMPFilter(c.Conn, f)
 }
@@ -292,11 +291,11 @@ func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error {
 // Only supported on Linux.
 func (c *dgramOpt) SetBPF(filter []bpf.RawInstruction) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoAttachFilter]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.setBPF(c.Conn, filter)
 }
diff --git a/vendor/golang.org/x/net/ipv6/doc.go b/vendor/golang.org/x/net/ipv6/doc.go
index 664a97d..e0be9d5 100644
--- a/vendor/golang.org/x/net/ipv6/doc.go
+++ b/vendor/golang.org/x/net/ipv6/doc.go
@@ -56,7 +56,7 @@
 // Multicasting
 //
 // The options for multicasting are available for net.UDPConn and
-// net.IPconn which are created as network connections that use the
+// net.IPConn which are created as network connections that use the
 // IPv6 transport. A few network facilities must be prepared before
 // you begin multicasting, at a minimum joining network interfaces and
 // multicast groups.
@@ -240,4 +240,4 @@
 // IncludeSourceSpecificGroup may return an error.
 package ipv6 // import "golang.org/x/net/ipv6"
 
-// BUG(mikio): This package is not implemented on NaCl and Plan 9.
+// BUG(mikio): This package is not implemented on JS, NaCl and Plan 9.
diff --git a/vendor/golang.org/x/net/ipv6/endpoint.go b/vendor/golang.org/x/net/ipv6/endpoint.go
index 0624c17..f534a0b 100644
--- a/vendor/golang.org/x/net/ipv6/endpoint.go
+++ b/vendor/golang.org/x/net/ipv6/endpoint.go
@@ -6,7 +6,6 @@ package ipv6
 
 import (
 	"net"
-	"syscall"
 	"time"
 
 	"golang.org/x/net/internal/socket"
@@ -34,11 +33,11 @@ func (c *genericOpt) ok() bool { return c != nil && c.Conn != nil }
 // with the endpoint.
 func (c *Conn) PathMTU() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoPathMTU]
 	if !ok {
-		return 0, errOpNoSupport
+		return 0, errNotImplemented
 	}
 	_, mtu, err := so.getMTUInfo(c.Conn)
 	if err != nil {
@@ -76,7 +75,7 @@ func (c *dgramOpt) ok() bool { return c != nil && c.Conn != nil }
 // socket options.
 func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return setControlMessage(c.dgramOpt.Conn, &c.payloadHandler.rawOpt, cf, on)
 }
@@ -85,7 +84,7 @@ func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error {
 // endpoint.
 func (c *PacketConn) SetDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.SetDeadline(t)
 }
@@ -94,7 +93,7 @@ func (c *PacketConn) SetDeadline(t time.Time) error {
 // endpoint.
 func (c *PacketConn) SetReadDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.SetReadDeadline(t)
 }
@@ -103,7 +102,7 @@ func (c *PacketConn) SetReadDeadline(t time.Time) error {
 // endpoint.
 func (c *PacketConn) SetWriteDeadline(t time.Time) error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.SetWriteDeadline(t)
 }
@@ -111,7 +110,7 @@ func (c *PacketConn) SetWriteDeadline(t time.Time) error {
 // Close closes the endpoint.
 func (c *PacketConn) Close() error {
 	if !c.payloadHandler.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	return c.payloadHandler.Close()
 }
diff --git a/vendor/golang.org/x/net/ipv6/gen.go b/vendor/golang.org/x/net/ipv6/gen.go
deleted file mode 100644
index 47b7e9f..0000000
--- a/vendor/golang.org/x/net/ipv6/gen.go
+++ /dev/null
@@ -1,199 +0,0 @@
-// Copyright 2013 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.
-
-// +build ignore
-
-//go:generate go run gen.go
-
-// This program generates system adaptation constants and types,
-// internet protocol constants and tables by reading template files
-// and IANA protocol registries.
-package main
-
-import (
-	"bytes"
-	"encoding/xml"
-	"fmt"
-	"go/format"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"os"
-	"os/exec"
-	"runtime"
-	"strconv"
-	"strings"
-)
-
-func main() {
-	if err := genzsys(); err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		os.Exit(1)
-	}
-	if err := geniana(); err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		os.Exit(1)
-	}
-}
-
-func genzsys() error {
-	defs := "defs_" + runtime.GOOS + ".go"
-	f, err := os.Open(defs)
-	if err != nil {
-		if os.IsNotExist(err) {
-			return nil
-		}
-		return err
-	}
-	f.Close()
-	cmd := exec.Command("go", "tool", "cgo", "-godefs", defs)
-	b, err := cmd.Output()
-	if err != nil {
-		return err
-	}
-	b, err = format.Source(b)
-	if err != nil {
-		return err
-	}
-	zsys := "zsys_" + runtime.GOOS + ".go"
-	switch runtime.GOOS {
-	case "freebsd", "linux":
-		zsys = "zsys_" + runtime.GOOS + "_" + runtime.GOARCH + ".go"
-	}
-	if err := ioutil.WriteFile(zsys, b, 0644); err != nil {
-		return err
-	}
-	return nil
-}
-
-var registries = []struct {
-	url   string
-	parse func(io.Writer, io.Reader) error
-}{
-	{
-		"https://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xml",
-		parseICMPv6Parameters,
-	},
-}
-
-func geniana() error {
-	var bb bytes.Buffer
-	fmt.Fprintf(&bb, "// go generate gen.go\n")
-	fmt.Fprintf(&bb, "// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT\n\n")
-	fmt.Fprintf(&bb, "package ipv6\n\n")
-	for _, r := range registries {
-		resp, err := http.Get(r.url)
-		if err != nil {
-			return err
-		}
-		defer resp.Body.Close()
-		if resp.StatusCode != http.StatusOK {
-			return fmt.Errorf("got HTTP status code %v for %v\n", resp.StatusCode, r.url)
-		}
-		if err := r.parse(&bb, resp.Body); err != nil {
-			return err
-		}
-		fmt.Fprintf(&bb, "\n")
-	}
-	b, err := format.Source(bb.Bytes())
-	if err != nil {
-		return err
-	}
-	if err := ioutil.WriteFile("iana.go", b, 0644); err != nil {
-		return err
-	}
-	return nil
-}
-
-func parseICMPv6Parameters(w io.Writer, r io.Reader) error {
-	dec := xml.NewDecoder(r)
-	var icp icmpv6Parameters
-	if err := dec.Decode(&icp); err != nil {
-		return err
-	}
-	prs := icp.escape()
-	fmt.Fprintf(w, "// %s, Updated: %s\n", icp.Title, icp.Updated)
-	fmt.Fprintf(w, "const (\n")
-	for _, pr := range prs {
-		if pr.Name == "" {
-			continue
-		}
-		fmt.Fprintf(w, "ICMPType%s ICMPType = %d", pr.Name, pr.Value)
-		fmt.Fprintf(w, "// %s\n", pr.OrigName)
-	}
-	fmt.Fprintf(w, ")\n\n")
-	fmt.Fprintf(w, "// %s, Updated: %s\n", icp.Title, icp.Updated)
-	fmt.Fprintf(w, "var icmpTypes = map[ICMPType]string{\n")
-	for _, pr := range prs {
-		if pr.Name == "" {
-			continue
-		}
-		fmt.Fprintf(w, "%d: %q,\n", pr.Value, strings.ToLower(pr.OrigName))
-	}
-	fmt.Fprintf(w, "}\n")
-	return nil
-}
-
-type icmpv6Parameters struct {
-	XMLName    xml.Name `xml:"registry"`
-	Title      string   `xml:"title"`
-	Updated    string   `xml:"updated"`
-	Registries []struct {
-		Title   string `xml:"title"`
-		Records []struct {
-			Value string `xml:"value"`
-			Name  string `xml:"name"`
-		} `xml:"record"`
-	} `xml:"registry"`
-}
-
-type canonICMPv6ParamRecord struct {
-	OrigName string
-	Name     string
-	Value    int
-}
-
-func (icp *icmpv6Parameters) escape() []canonICMPv6ParamRecord {
-	id := -1
-	for i, r := range icp.Registries {
-		if strings.Contains(r.Title, "Type") || strings.Contains(r.Title, "type") {
-			id = i
-			break
-		}
-	}
-	if id < 0 {
-		return nil
-	}
-	prs := make([]canonICMPv6ParamRecord, len(icp.Registries[id].Records))
-	sr := strings.NewReplacer(
-		"Messages", "",
-		"Message", "",
-		"ICMP", "",
-		"+", "P",
-		"-", "",
-		"/", "",
-		".", "",
-		" ", "",
-	)
-	for i, pr := range icp.Registries[id].Records {
-		if strings.Contains(pr.Name, "Reserved") ||
-			strings.Contains(pr.Name, "Unassigned") ||
-			strings.Contains(pr.Name, "Deprecated") ||
-			strings.Contains(pr.Name, "Experiment") ||
-			strings.Contains(pr.Name, "experiment") {
-			continue
-		}
-		ss := strings.Split(pr.Name, "\n")
-		if len(ss) > 1 {
-			prs[i].Name = strings.Join(ss, " ")
-		} else {
-			prs[i].Name = ss[0]
-		}
-		s := strings.TrimSpace(prs[i].Name)
-		prs[i].OrigName = s
-		prs[i].Name = sr.Replace(s)
-		prs[i].Value, _ = strconv.Atoi(pr.Value)
-	}
-	return prs
-}
diff --git a/vendor/golang.org/x/net/ipv6/genericopt.go b/vendor/golang.org/x/net/ipv6/genericopt.go
index e9dbc2e..0326aed 100644
--- a/vendor/golang.org/x/net/ipv6/genericopt.go
+++ b/vendor/golang.org/x/net/ipv6/genericopt.go
@@ -4,17 +4,15 @@
 
 package ipv6
 
-import "syscall"
-
 // TrafficClass returns the traffic class field value for outgoing
 // packets.
 func (c *genericOpt) TrafficClass() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoTrafficClass]
 	if !ok {
-		return 0, errOpNoSupport
+		return 0, errNotImplemented
 	}
 	return so.GetInt(c.Conn)
 }
@@ -23,11 +21,11 @@ func (c *genericOpt) TrafficClass() (int, error) {
 // outgoing packets.
 func (c *genericOpt) SetTrafficClass(tclass int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoTrafficClass]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.SetInt(c.Conn, tclass)
 }
@@ -35,11 +33,11 @@ func (c *genericOpt) SetTrafficClass(tclass int) error {
 // HopLimit returns the hop limit field value for outgoing packets.
 func (c *genericOpt) HopLimit() (int, error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	so, ok := sockOpts[ssoHopLimit]
 	if !ok {
-		return 0, errOpNoSupport
+		return 0, errNotImplemented
 	}
 	return so.GetInt(c.Conn)
 }
@@ -48,11 +46,11 @@ func (c *genericOpt) HopLimit() (int, error) {
 // packets.
 func (c *genericOpt) SetHopLimit(hoplim int) error {
 	if !c.ok() {
-		return syscall.EINVAL
+		return errInvalidConn
 	}
 	so, ok := sockOpts[ssoHopLimit]
 	if !ok {
-		return errOpNoSupport
+		return errNotImplemented
 	}
 	return so.SetInt(c.Conn, hoplim)
 }
diff --git a/vendor/golang.org/x/net/ipv6/helper.go b/vendor/golang.org/x/net/ipv6/helper.go
index 2597401..c2d508f 100644
--- a/vendor/golang.org/x/net/ipv6/helper.go
+++ b/vendor/golang.org/x/net/ipv6/helper.go
@@ -7,14 +7,15 @@ package ipv6
 import (
 	"errors"
 	"net"
+	"runtime"
 )
 
 var (
+	errInvalidConn     = errors.New("invalid connection")
 	errMissingAddress  = errors.New("missing address")
 	errHeaderTooShort  = errors.New("header too short")
 	errInvalidConnType = errors.New("invalid conn type")
-	errOpNoSupport     = errors.New("operation not supported")
-	errNoSuchInterface = errors.New("no such interface")
+	errNotImplemented  = errors.New("not implemented on " + runtime.GOOS + "/" + runtime.GOARCH)
 )
 
 func boolint(b bool) int {
diff --git a/vendor/golang.org/x/net/ipv6/iana.go b/vendor/golang.org/x/net/ipv6/iana.go
index 3c6214f..32db1aa 100644
--- a/vendor/golang.org/x/net/ipv6/iana.go
+++ b/vendor/golang.org/x/net/ipv6/iana.go
@@ -1,9 +1,9 @@
 // go generate gen.go
-// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
+// Code generated by the command above; DO NOT EDIT.
 
 package ipv6
 
-// Internet Control Message Protocol version 6 (ICMPv6) Parameters, Updated: 2015-07-07
+// Internet Control Message Protocol version 6 (ICMPv6) Parameters, Updated: 2018-03-09
 const (
 	ICMPTypeDestinationUnreachable                ICMPType = 1   // Destination Unreachable
 	ICMPTypePacketTooBig                          ICMPType = 2   // Packet Too Big
@@ -40,9 +40,11 @@ const (
 	ICMPTypeDuplicateAddressRequest               ICMPType = 157 // Duplicate Address Request
 	ICMPTypeDuplicateAddressConfirmation          ICMPType = 158 // Duplicate Address Confirmation
 	ICMPTypeMPLControl                            ICMPType = 159 // MPL Control Message
+	ICMPTypeExtendedEchoRequest                   ICMPType = 160 // Extended Echo Request
+	ICMPTypeExtendedEchoReply                     ICMPType = 161 // Extended Echo Reply
 )
 
-// Internet Control Message Protocol version 6 (ICMPv6) Parameters, Updated: 2015-07-07
+// Internet Control Message Protocol version 6 (ICMPv6) Parameters, Updated: 2018-03-09
 var icmpTypes = map[ICMPType]string{
 	1:   "destination unreachable",
 	2:   "packet too big",
@@ -79,4 +81,6 @@ var icmpTypes = map[ICMPType]string{
 	157: "duplicate address request",
 	158: "duplicate address confirmation",
 	159: "mpl control message",
+	160: "extended echo request",
+	161: "extended echo reply",
 }
diff --git a/vendor/golang.org/x/net/ipv6/icmp_bsd.go b/vendor/golang.org/x/net/ipv6/icmp_bsd.go
index e1a791d..b03025c 100644
--- a/vendor/golang.org/x/net/ipv6/icmp_bsd.go
+++ b/vendor/golang.org/x/net/ipv6/icmp_bsd.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.
 
-// +build darwin dragonfly freebsd netbsd openbsd
+// +build aix darwin dragonfly freebsd netbsd openbsd
 
 package ipv6
 
diff --git a/vendor/golang.org/x/net/ipv6/icmp_stub.go b/vendor/golang.org/x/net/ipv6/icmp_stub.go
index c4b9be6..297e191 100644
--- a/vendor/golang.org/x/net/ipv6/icmp_stub.go
+++ b/vendor/golang.org/x/net/ipv6/icmp_stub.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.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
 
 package ipv6
 
diff --git a/vendor/golang.org/x/net/ipv6/icmp_zos.go b/vendor/golang.org/x/net/ipv6/icmp_zos.go
new file mode 100644
index 0000000..ddf8f09
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv6/icmp_zos.go
@@ -0,0 +1,29 @@
+// Copyright 2020 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 ipv6
+
+func (f *icmpv6Filter) accept(typ ICMPType) {
+	f.Filt[typ>>5] |= 1 << (uint32(typ) & 31)
+
+}
+
+func (f *icmpv6Filter) block(typ ICMPType) {
+	f.Filt[typ>>5] &^= 1 << (uint32(typ) & 31)
+
+}
+
+func (f *icmpv6Filter) setAll(block bool) {
+	for i := range f.Filt {
+		if block {
+			f.Filt[i] = 0
+		} else {
+			f.Filt[i] = 1<<32 - 1
+		}
+	}
+}
+
+func (f *icmpv6Filter) willBlock(typ ICMPType) bool {
+	return f.Filt[typ>>5]&(1<<(uint32(typ)&31)) == 0
+}
diff --git a/vendor/golang.org/x/net/ipv6/payload_cmsg.go b/vendor/golang.org/x/net/ipv6/payload_cmsg.go
index 4ee4b06..8baa26e 100644
--- a/vendor/golang.org/x/net/ipv6/payload_cmsg.go
+++ b/vendor/golang.org/x/net/ipv6/payload_cmsg.go
@@ -2,13 +2,14 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !nacl,!plan9,!windows
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 package ipv6
 
 import (
 	"net"
-	"syscall"
+
+	"golang.org/x/net/internal/socket"
 )
 
 // ReadFrom reads a payload of the received IPv6 datagram, from the
@@ -17,9 +18,34 @@ import (
 // src of the received datagram.
 func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
 	if !c.ok() {
-		return 0, nil, nil, syscall.EINVAL
+		return 0, nil, nil, errInvalidConn
+	}
+	c.rawOpt.RLock()
+	m := socket.Message{
+		Buffers: [][]byte{b},
+		OOB:     NewControlMessage(c.rawOpt.cflags),
+	}
+	c.rawOpt.RUnlock()
+	switch c.PacketConn.(type) {
+	case *net.UDPConn:
+		if err := c.RecvMsg(&m, 0); err != nil {
+			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
+		}
+	case *net.IPConn:
+		if err := c.RecvMsg(&m, 0); err != nil {
+			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
+		}
+	default:
+		return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errInvalidConnType}
 	}
-	return c.readFrom(b)
+	if m.NN > 0 {
+		cm = new(ControlMessage)
+		if err := cm.Parse(m.OOB[:m.NN]); err != nil {
+			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
+		}
+		cm.Src = netAddrToIP16(m.Addr)
+	}
+	return m.N, cm, m.Addr, nil
 }
 
 // WriteTo writes a payload of the IPv6 datagram, to the destination
@@ -29,7 +55,16 @@ func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.
 // cm may be nil if control of the outgoing datagram is not required.
 func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
+	}
+	m := socket.Message{
+		Buffers: [][]byte{b},
+		OOB:     cm.Marshal(),
+		Addr:    dst,
+	}
+	err = c.SendMsg(&m, 0)
+	if err != nil {
+		err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Addr: opAddr(dst), Err: err}
 	}
-	return c.writeTo(b, cm, dst)
+	return m.N, err
 }
diff --git a/vendor/golang.org/x/net/ipv6/payload_cmsg_go1_8.go b/vendor/golang.org/x/net/ipv6/payload_cmsg_go1_8.go
deleted file mode 100644
index fdc6c39..0000000
--- a/vendor/golang.org/x/net/ipv6/payload_cmsg_go1_8.go
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright 2013 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.
-
-// +build !go1.9
-// +build !nacl,!plan9,!windows
-
-package ipv6
-
-import "net"
-
-func (c *payloadHandler) readFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
-	c.rawOpt.RLock()
-	oob := NewControlMessage(c.rawOpt.cflags)
-	c.rawOpt.RUnlock()
-	var nn int
-	switch c := c.PacketConn.(type) {
-	case *net.UDPConn:
-		if n, nn, _, src, err = c.ReadMsgUDP(b, oob); err != nil {
-			return 0, nil, nil, err
-		}
-	case *net.IPConn:
-		if n, nn, _, src, err = c.ReadMsgIP(b, oob); err != nil {
-			return 0, nil, nil, err
-		}
-	default:
-		return 0, nil, nil, &net.OpError{Op: "read", Net: c.LocalAddr().Network(), Source: c.LocalAddr(), Err: errInvalidConnType}
-	}
-	if nn > 0 {
-		cm = new(ControlMessage)
-		if err = cm.Parse(oob[:nn]); err != nil {
-			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
-		}
-	}
-	if cm != nil {
-		cm.Src = netAddrToIP16(src)
-	}
-	return
-}
-
-func (c *payloadHandler) writeTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
-	oob := cm.Marshal()
-	if dst == nil {
-		return 0, &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errMissingAddress}
-	}
-	switch c := c.PacketConn.(type) {
-	case *net.UDPConn:
-		n, _, err = c.WriteMsgUDP(b, oob, dst.(*net.UDPAddr))
-	case *net.IPConn:
-		n, _, err = c.WriteMsgIP(b, oob, dst.(*net.IPAddr))
-	default:
-		return 0, &net.OpError{Op: "write", Net: c.LocalAddr().Network(), Source: c.LocalAddr(), Addr: opAddr(dst), Err: errInvalidConnType}
-	}
-	return
-}
diff --git a/vendor/golang.org/x/net/ipv6/payload_cmsg_go1_9.go b/vendor/golang.org/x/net/ipv6/payload_cmsg_go1_9.go
deleted file mode 100644
index 8f6d02e..0000000
--- a/vendor/golang.org/x/net/ipv6/payload_cmsg_go1_9.go
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright 2017 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.
-
-// +build go1.9
-// +build !nacl,!plan9,!windows
-
-package ipv6
-
-import (
-	"net"
-
-	"golang.org/x/net/internal/socket"
-)
-
-func (c *payloadHandler) readFrom(b []byte) (int, *ControlMessage, net.Addr, error) {
-	c.rawOpt.RLock()
-	m := socket.Message{
-		Buffers: [][]byte{b},
-		OOB:     NewControlMessage(c.rawOpt.cflags),
-	}
-	c.rawOpt.RUnlock()
-	switch c.PacketConn.(type) {
-	case *net.UDPConn:
-		if err := c.RecvMsg(&m, 0); err != nil {
-			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
-		}
-	case *net.IPConn:
-		if err := c.RecvMsg(&m, 0); err != nil {
-			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
-		}
-	default:
-		return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errInvalidConnType}
-	}
-	var cm *ControlMessage
-	if m.NN > 0 {
-		cm = new(ControlMessage)
-		if err := cm.Parse(m.OOB[:m.NN]); err != nil {
-			return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
-		}
-		cm.Src = netAddrToIP16(m.Addr)
-	}
-	return m.N, cm, m.Addr, nil
-}
-
-func (c *payloadHandler) writeTo(b []byte, cm *ControlMessage, dst net.Addr) (int, error) {
-	m := socket.Message{
-		Buffers: [][]byte{b},
-		OOB:     cm.Marshal(),
-		Addr:    dst,
-	}
-	err := c.SendMsg(&m, 0)
-	if err != nil {
-		err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Addr: opAddr(dst), Err: err}
-	}
-	return m.N, err
-}
diff --git a/vendor/golang.org/x/net/ipv6/payload_nocmsg.go b/vendor/golang.org/x/net/ipv6/payload_nocmsg.go
index 99a4354..00c4f58 100644
--- a/vendor/golang.org/x/net/ipv6/payload_nocmsg.go
+++ b/vendor/golang.org/x/net/ipv6/payload_nocmsg.go
@@ -2,14 +2,11 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl plan9 windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!zos
 
 package ipv6
 
-import (
-	"net"
-	"syscall"
-)
+import "net"
 
 // ReadFrom reads a payload of the received IPv6 datagram, from the
 // endpoint c, copying the payload into b. It returns the number of
@@ -17,7 +14,7 @@ import (
 // src of the received datagram.
 func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
 	if !c.ok() {
-		return 0, nil, nil, syscall.EINVAL
+		return 0, nil, nil, errInvalidConn
 	}
 	if n, src, err = c.PacketConn.ReadFrom(b); err != nil {
 		return 0, nil, nil, err
@@ -32,7 +29,7 @@ func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.
 // cm may be nil if control of the outgoing datagram is not required.
 func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
 	if !c.ok() {
-		return 0, syscall.EINVAL
+		return 0, errInvalidConn
 	}
 	if dst == nil {
 		return 0, errMissingAddress
diff --git a/vendor/golang.org/x/net/ipv6/sockopt_posix.go b/vendor/golang.org/x/net/ipv6/sockopt_posix.go
index 0eac86e..f718792 100644
--- a/vendor/golang.org/x/net/ipv6/sockopt_posix.go
+++ b/vendor/golang.org/x/net/ipv6/sockopt_posix.go
@@ -2,12 +2,13 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris windows zos
 
 package ipv6
 
 import (
 	"net"
+	"runtime"
 	"unsafe"
 
 	"golang.org/x/net/bpf"
@@ -37,7 +38,7 @@ func (so *sockOpt) getICMPFilter(c *socket.Conn) (*ICMPFilter, error) {
 		return nil, err
 	}
 	if n != sizeofICMPv6Filter {
-		return nil, errOpNoSupport
+		return nil, errNotImplemented
 	}
 	return (*ICMPFilter)(unsafe.Pointer(&b[0])), nil
 }
@@ -54,10 +55,11 @@ func (so *sockOpt) getMTUInfo(c *socket.Conn) (*net.Interface, int, error) {
 		return nil, 0, err
 	}
 	if n != sizeofIPv6Mtuinfo {
-		return nil, 0, errOpNoSupport
+		return nil, 0, errNotImplemented
 	}
 	mi := (*ipv6Mtuinfo)(unsafe.Pointer(&b[0]))
-	if mi.Addr.Scope_id == 0 {
+	if mi.Addr.Scope_id == 0 || runtime.GOOS == "aix" {
+		// AIX kernel might return a wrong address.
 		return nil, int(mi.Mtu), nil
 	}
 	ifi, err := net.InterfaceByIndex(int(mi.Addr.Scope_id))
@@ -74,7 +76,7 @@ func (so *sockOpt) setGroup(c *socket.Conn, ifi *net.Interface, grp net.IP) erro
 	case ssoTypeGroupReq:
 		return so.setGroupReq(c, ifi, grp)
 	default:
-		return errOpNoSupport
+		return errNotImplemented
 	}
 }
 
diff --git a/vendor/golang.org/x/net/ipv6/sockopt_stub.go b/vendor/golang.org/x/net/ipv6/sockopt_stub.go
index 1f4a273..d87db6a 100644
--- a/vendor/golang.org/x/net/ipv6/sockopt_stub.go
+++ b/vendor/golang.org/x/net/ipv6/sockopt_stub.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.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
 
 package ipv6
 
@@ -14,33 +14,33 @@ import (
 )
 
 func (so *sockOpt) getMulticastInterface(c *socket.Conn) (*net.Interface, error) {
-	return nil, errOpNoSupport
+	return nil, errNotImplemented
 }
 
 func (so *sockOpt) setMulticastInterface(c *socket.Conn, ifi *net.Interface) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) getICMPFilter(c *socket.Conn) (*ICMPFilter, error) {
-	return nil, errOpNoSupport
+	return nil, errNotImplemented
 }
 
 func (so *sockOpt) setICMPFilter(c *socket.Conn, f *ICMPFilter) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) getMTUInfo(c *socket.Conn) (*net.Interface, int, error) {
-	return nil, 0, errOpNoSupport
+	return nil, 0, errNotImplemented
 }
 
 func (so *sockOpt) setGroup(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) setSourceGroup(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) setBPF(c *socket.Conn, f []bpf.RawInstruction) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv6/sys_aix.go b/vendor/golang.org/x/net/ipv6/sys_aix.go
new file mode 100644
index 0000000..bce7091
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv6/sys_aix.go
@@ -0,0 +1,77 @@
+// Copyright 2019 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.
+
+// Added for go1.11 compatibility
+// +build aix
+
+package ipv6
+
+import (
+	"net"
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/net/internal/iana"
+	"golang.org/x/net/internal/socket"
+)
+
+var (
+	ctlOpts = [ctlMax]ctlOpt{
+		ctlTrafficClass: {sysIPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass},
+		ctlHopLimit:     {sysIPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit},
+		ctlPacketInfo:   {sysIPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo},
+		ctlNextHop:      {sysIPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop},
+		ctlPathMTU:      {sysIPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU},
+	}
+
+	sockOpts = map[int]*sockOpt{
+		ssoTrafficClass:        {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_TCLASS, Len: 4}},
+		ssoHopLimit:            {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_UNICAST_HOPS, Len: 4}},
+		ssoMulticastInterface:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_IF, Len: 4}},
+		ssoMulticastHopLimit:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_HOPS, Len: 4}},
+		ssoMulticastLoopback:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_LOOP, Len: 4}},
+		ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVTCLASS, Len: 4}},
+		ssoReceiveHopLimit:     {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVHOPLIMIT, Len: 4}},
+		ssoReceivePacketInfo:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPKTINFO, Len: 4}},
+		ssoReceivePathMTU:      {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPATHMTU, Len: 4}},
+		ssoPathMTU:             {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}},
+		ssoChecksum:            {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_CHECKSUM, Len: 4}},
+		ssoICMPFilter:          {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: sysICMP6_FILTER, Len: sizeofICMPv6Filter}},
+		ssoJoinGroup:           {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_JOIN_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
+		ssoLeaveGroup:          {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_LEAVE_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
+	}
+)
+
+func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) {
+	sa.Len = sizeofSockaddrInet6
+	sa.Family = syscall.AF_INET6
+	copy(sa.Addr[:], ip)
+	sa.Scope_id = uint32(i)
+}
+
+func (pi *inet6Pktinfo) setIfindex(i int) {
+	pi.Ifindex = int32(i)
+}
+
+func (mreq *ipv6Mreq) setIfindex(i int) {
+	mreq.Interface = uint32(i)
+}
+
+func (gr *groupReq) setGroup(grp net.IP) {
+	sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gr)) + 4))
+	sa.Len = sizeofSockaddrInet6
+	sa.Family = syscall.AF_INET6
+	copy(sa.Addr[:], grp)
+}
+
+func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) {
+	sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 4))
+	sa.Len = sizeofSockaddrInet6
+	sa.Family = syscall.AF_INET6
+	copy(sa.Addr[:], grp)
+	sa = (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 132))
+	sa.Len = sizeofSockaddrInet6
+	sa.Family = syscall.AF_INET6
+	copy(sa.Addr[:], src)
+}
diff --git a/vendor/golang.org/x/net/ipv6/sys_asmreq.go b/vendor/golang.org/x/net/ipv6/sys_asmreq.go
index b0510c0..8c3934c 100644
--- a/vendor/golang.org/x/net/ipv6/sys_asmreq.go
+++ b/vendor/golang.org/x/net/ipv6/sys_asmreq.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.
 
-// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris windows
 
 package ipv6
 
diff --git a/vendor/golang.org/x/net/ipv6/sys_asmreq_stub.go b/vendor/golang.org/x/net/ipv6/sys_asmreq_stub.go
index eece961..87ae481 100644
--- a/vendor/golang.org/x/net/ipv6/sys_asmreq_stub.go
+++ b/vendor/golang.org/x/net/ipv6/sys_asmreq_stub.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.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
 
 package ipv6
 
@@ -13,5 +13,5 @@ import (
 )
 
 func (so *sockOpt) setIPMreq(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv6/sys_bpf.go b/vendor/golang.org/x/net/ipv6/sys_bpf.go
index b2dbcb2..90ef4df 100644
--- a/vendor/golang.org/x/net/ipv6/sys_bpf.go
+++ b/vendor/golang.org/x/net/ipv6/sys_bpf.go
@@ -11,13 +11,14 @@ import (
 
 	"golang.org/x/net/bpf"
 	"golang.org/x/net/internal/socket"
+	"golang.org/x/sys/unix"
 )
 
 func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error {
-	prog := sockFProg{
+	prog := unix.SockFprog{
 		Len:    uint16(len(f)),
-		Filter: (*sockFilter)(unsafe.Pointer(&f[0])),
+		Filter: (*unix.SockFilter)(unsafe.Pointer(&f[0])),
 	}
-	b := (*[sizeofSockFprog]byte)(unsafe.Pointer(&prog))[:sizeofSockFprog]
+	b := (*[unix.SizeofSockFprog]byte)(unsafe.Pointer(&prog))[:unix.SizeofSockFprog]
 	return so.Set(c, b)
 }
diff --git a/vendor/golang.org/x/net/ipv6/sys_bpf_stub.go b/vendor/golang.org/x/net/ipv6/sys_bpf_stub.go
index 676bea5..eb9f831 100644
--- a/vendor/golang.org/x/net/ipv6/sys_bpf_stub.go
+++ b/vendor/golang.org/x/net/ipv6/sys_bpf_stub.go
@@ -12,5 +12,5 @@ import (
 )
 
 func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv6/sys_darwin.go b/vendor/golang.org/x/net/ipv6/sys_darwin.go
index e3d0443..12cc5cb 100644
--- a/vendor/golang.org/x/net/ipv6/sys_darwin.go
+++ b/vendor/golang.org/x/net/ipv6/sys_darwin.go
@@ -6,8 +6,6 @@ package ipv6
 
 import (
 	"net"
-	"strconv"
-	"strings"
 	"syscall"
 	"unsafe"
 
@@ -17,61 +15,35 @@ import (
 
 var (
 	ctlOpts = [ctlMax]ctlOpt{
-		ctlHopLimit:   {sysIPV6_2292HOPLIMIT, 4, marshal2292HopLimit, parseHopLimit},
-		ctlPacketInfo: {sysIPV6_2292PKTINFO, sizeofInet6Pktinfo, marshal2292PacketInfo, parsePacketInfo},
+		ctlTrafficClass: {sysIPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass},
+		ctlHopLimit:     {sysIPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit},
+		ctlPacketInfo:   {sysIPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo},
+		ctlNextHop:      {sysIPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop},
+		ctlPathMTU:      {sysIPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU},
 	}
 
 	sockOpts = map[int]*sockOpt{
-		ssoHopLimit:           {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_UNICAST_HOPS, Len: 4}},
-		ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_IF, Len: 4}},
-		ssoMulticastHopLimit:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_HOPS, Len: 4}},
-		ssoMulticastLoopback:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_LOOP, Len: 4}},
-		ssoReceiveHopLimit:    {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_2292HOPLIMIT, Len: 4}},
-		ssoReceivePacketInfo:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_2292PKTINFO, Len: 4}},
-		ssoChecksum:           {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_CHECKSUM, Len: 4}},
-		ssoICMPFilter:         {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: sysICMP6_FILTER, Len: sizeofICMPv6Filter}},
-		ssoJoinGroup:          {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_JOIN_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
-		ssoLeaveGroup:         {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_LEAVE_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
+		ssoHopLimit:            {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_UNICAST_HOPS, Len: 4}},
+		ssoMulticastInterface:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_IF, Len: 4}},
+		ssoMulticastHopLimit:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_HOPS, Len: 4}},
+		ssoMulticastLoopback:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_LOOP, Len: 4}},
+		ssoTrafficClass:        {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_TCLASS, Len: 4}},
+		ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVTCLASS, Len: 4}},
+		ssoReceiveHopLimit:     {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVHOPLIMIT, Len: 4}},
+		ssoReceivePacketInfo:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPKTINFO, Len: 4}},
+		ssoReceivePathMTU:      {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPATHMTU, Len: 4}},
+		ssoPathMTU:             {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}},
+		ssoChecksum:            {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_CHECKSUM, Len: 4}},
+		ssoICMPFilter:          {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: sysICMP6_FILTER, Len: sizeofICMPv6Filter}},
+		ssoJoinGroup:           {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq},
+		ssoLeaveGroup:          {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq},
+		ssoJoinSourceGroup:     {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoLeaveSourceGroup:    {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoBlockSourceGroup:    {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoUnblockSourceGroup:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
 	}
 )
 
-func init() {
-	// Seems like kern.osreldate is veiled on latest OS X. We use
-	// kern.osrelease instead.
-	s, err := syscall.Sysctl("kern.osrelease")
-	if err != nil {
-		return
-	}
-	ss := strings.Split(s, ".")
-	if len(ss) == 0 {
-		return
-	}
-	// The IP_PKTINFO and protocol-independent multicast API were
-	// introduced in OS X 10.7 (Darwin 11). But it looks like
-	// those features require OS X 10.8 (Darwin 12) or above.
-	// See http://support.apple.com/kb/HT1633.
-	if mjver, err := strconv.Atoi(ss[0]); err != nil || mjver < 12 {
-		return
-	}
-	ctlOpts[ctlTrafficClass] = ctlOpt{sysIPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass}
-	ctlOpts[ctlHopLimit] = ctlOpt{sysIPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}
-	ctlOpts[ctlPacketInfo] = ctlOpt{sysIPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}
-	ctlOpts[ctlNextHop] = ctlOpt{sysIPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop}
-	ctlOpts[ctlPathMTU] = ctlOpt{sysIPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}
-	sockOpts[ssoTrafficClass] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_TCLASS, Len: 4}}
-	sockOpts[ssoReceiveTrafficClass] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVTCLASS, Len: 4}}
-	sockOpts[ssoReceiveHopLimit] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVHOPLIMIT, Len: 4}}
-	sockOpts[ssoReceivePacketInfo] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPKTINFO, Len: 4}}
-	sockOpts[ssoReceivePathMTU] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPATHMTU, Len: 4}}
-	sockOpts[ssoPathMTU] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}}
-	sockOpts[ssoJoinGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}
-	sockOpts[ssoLeaveGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}
-	sockOpts[ssoJoinSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
-	sockOpts[ssoLeaveSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
-	sockOpts[ssoBlockSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
-	sockOpts[ssoUnblockSourceGroup] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}
-}
-
 func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) {
 	sa.Len = sizeofSockaddrInet6
 	sa.Family = syscall.AF_INET6
diff --git a/vendor/golang.org/x/net/ipv6/sys_freebsd.go b/vendor/golang.org/x/net/ipv6/sys_freebsd.go
index e9349dc..85a9f5d 100644
--- a/vendor/golang.org/x/net/ipv6/sys_freebsd.go
+++ b/vendor/golang.org/x/net/ipv6/sys_freebsd.go
@@ -51,7 +51,7 @@ func init() {
 		archs, _ := syscall.Sysctl("kern.supported_archs")
 		for _, s := range strings.Fields(archs) {
 			if s == "amd64" {
-				freebsd32o64 = true
+				compatFreeBSD32 = true
 				break
 			}
 		}
diff --git a/vendor/golang.org/x/net/ipv6/sys_linux.go b/vendor/golang.org/x/net/ipv6/sys_linux.go
index bc21810..96e8093 100644
--- a/vendor/golang.org/x/net/ipv6/sys_linux.go
+++ b/vendor/golang.org/x/net/ipv6/sys_linux.go
@@ -11,6 +11,7 @@ import (
 
 	"golang.org/x/net/internal/iana"
 	"golang.org/x/net/internal/socket"
+	"golang.org/x/sys/unix"
 )
 
 var (
@@ -40,7 +41,7 @@ var (
 		ssoLeaveSourceGroup:    {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
 		ssoBlockSourceGroup:    {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
 		ssoUnblockSourceGroup:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
-		ssoAttachFilter:        {Option: socket.Option{Level: sysSOL_SOCKET, Name: sysSO_ATTACH_FILTER, Len: sizeofSockFprog}},
+		ssoAttachFilter:        {Option: socket.Option{Level: unix.SOL_SOCKET, Name: unix.SO_ATTACH_FILTER, Len: unix.SizeofSockFprog}},
 	}
 )
 
diff --git a/vendor/golang.org/x/net/ipv6/sys_ssmreq.go b/vendor/golang.org/x/net/ipv6/sys_ssmreq.go
index add8ccc..88d64f1 100644
--- a/vendor/golang.org/x/net/ipv6/sys_ssmreq.go
+++ b/vendor/golang.org/x/net/ipv6/sys_ssmreq.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.
 
-// +build darwin freebsd linux solaris
+// +build aix darwin freebsd linux solaris zos
 
 package ipv6
 
@@ -13,7 +13,7 @@ import (
 	"golang.org/x/net/internal/socket"
 )
 
-var freebsd32o64 bool
+var compatFreeBSD32 bool // 386 emulation on amd64
 
 func (so *sockOpt) setGroupReq(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
 	var gr groupReq
@@ -22,7 +22,7 @@ func (so *sockOpt) setGroupReq(c *socket.Conn, ifi *net.Interface, grp net.IP) e
 	}
 	gr.setGroup(grp)
 	var b []byte
-	if freebsd32o64 {
+	if compatFreeBSD32 {
 		var d [sizeofGroupReq + 4]byte
 		s := (*[sizeofGroupReq]byte)(unsafe.Pointer(&gr))
 		copy(d[:4], s[:4])
@@ -41,7 +41,7 @@ func (so *sockOpt) setGroupSourceReq(c *socket.Conn, ifi *net.Interface, grp, sr
 	}
 	gsr.setSourceGroup(grp, src)
 	var b []byte
-	if freebsd32o64 {
+	if compatFreeBSD32 {
 		var d [sizeofGroupSourceReq + 4]byte
 		s := (*[sizeofGroupSourceReq]byte)(unsafe.Pointer(&gsr))
 		copy(d[:4], s[:4])
diff --git a/vendor/golang.org/x/net/ipv6/sys_ssmreq_stub.go b/vendor/golang.org/x/net/ipv6/sys_ssmreq_stub.go
index 581ee49..b070886 100644
--- a/vendor/golang.org/x/net/ipv6/sys_ssmreq_stub.go
+++ b/vendor/golang.org/x/net/ipv6/sys_ssmreq_stub.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.
 
-// +build !darwin,!freebsd,!linux,!solaris
+// +build !aix,!darwin,!freebsd,!linux,!solaris,!zos
 
 package ipv6
 
@@ -13,9 +13,9 @@ import (
 )
 
 func (so *sockOpt) setGroupReq(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
 
 func (so *sockOpt) setGroupSourceReq(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error {
-	return errOpNoSupport
+	return errNotImplemented
 }
diff --git a/vendor/golang.org/x/net/ipv6/sys_stub.go b/vendor/golang.org/x/net/ipv6/sys_stub.go
index b845388..cbe4a02 100644
--- a/vendor/golang.org/x/net/ipv6/sys_stub.go
+++ b/vendor/golang.org/x/net/ipv6/sys_stub.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.
 
-// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows
+// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris,!windows,!zos
 
 package ipv6
 
diff --git a/vendor/golang.org/x/net/ipv6/sys_zos.go b/vendor/golang.org/x/net/ipv6/sys_zos.go
new file mode 100644
index 0000000..d4567f9
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv6/sys_zos.go
@@ -0,0 +1,70 @@
+// Copyright 2020 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 ipv6
+
+import (
+	"net"
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/net/internal/iana"
+	"golang.org/x/net/internal/socket"
+)
+
+var (
+	ctlOpts = [ctlMax]ctlOpt{
+		ctlHopLimit:   {sysIPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit},
+		ctlPacketInfo: {sysIPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo},
+		ctlPathMTU:    {sysIPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU},
+	}
+
+	sockOpts = map[int]*sockOpt{
+		ssoTrafficClass:        {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_TCLASS, Len: 4}},
+		ssoHopLimit:            {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_UNICAST_HOPS, Len: 4}},
+		ssoMulticastInterface:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_IF, Len: 4}},
+		ssoMulticastHopLimit:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_HOPS, Len: 4}},
+		ssoMulticastLoopback:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_LOOP, Len: 4}},
+		ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVTCLASS, Len: 4}},
+		ssoReceiveHopLimit:     {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVHOPLIMIT, Len: 4}},
+		ssoReceivePacketInfo:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPKTINFO, Len: 4}},
+		ssoReceivePathMTU:      {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPATHMTU, Len: 4}},
+		ssoChecksum:            {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_CHECKSUM, Len: 4}},
+		ssoICMPFilter:          {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: sysICMP6_FILTER, Len: sizeofICMPv6Filter}},
+		ssoJoinGroup:           {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq},
+		ssoLeaveGroup:          {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq},
+		ssoJoinSourceGroup:     {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoLeaveSourceGroup:    {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoBlockSourceGroup:    {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+		ssoUnblockSourceGroup:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq},
+	}
+)
+
+func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) {
+	sa.Family = syscall.AF_INET6
+	copy(sa.Addr[:], ip)
+	sa.Scope_id = uint32(i)
+}
+
+func (pi *inet6Pktinfo) setIfindex(i int) {
+	pi.Ifindex = uint32(i)
+}
+
+func (gr *groupReq) setGroup(grp net.IP) {
+	sa := (*sockaddrInet6)(unsafe.Pointer(&gr.Group))
+	sa.Family = syscall.AF_INET6
+	sa.Len = sizeofSockaddrInet6
+	copy(sa.Addr[:], grp)
+}
+
+func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) {
+	sa := (*sockaddrInet6)(unsafe.Pointer(&gsr.Group))
+	sa.Family = syscall.AF_INET6
+	sa.Len = sizeofSockaddrInet6
+	copy(sa.Addr[:], grp)
+	sa = (*sockaddrInet6)(unsafe.Pointer(&gsr.Source))
+	sa.Family = syscall.AF_INET6
+	sa.Len = sizeofSockaddrInet6
+	copy(sa.Addr[:], src)
+}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_aix_ppc64.go b/vendor/golang.org/x/net/ipv6/zsys_aix_ppc64.go
new file mode 100644
index 0000000..bf44e33
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv6/zsys_aix_ppc64.go
@@ -0,0 +1,103 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_aix.go
+
+// Added for go1.11 compatibility
+// +build aix
+
+package ipv6
+
+const (
+	sysIPV6_UNICAST_HOPS   = 0x4
+	sysIPV6_MULTICAST_IF   = 0x9
+	sysIPV6_MULTICAST_HOPS = 0xa
+	sysIPV6_MULTICAST_LOOP = 0xb
+	sysIPV6_JOIN_GROUP     = 0xc
+	sysIPV6_LEAVE_GROUP    = 0xd
+	sysICMP6_FILTER        = 0x26
+
+	sysIPV6_CHECKSUM = 0x27
+	sysIPV6_V6ONLY   = 0x25
+
+	sysIPV6_RTHDRDSTOPTS = 0x37
+
+	sysIPV6_RECVPKTINFO  = 0x23
+	sysIPV6_RECVHOPLIMIT = 0x29
+	sysIPV6_RECVRTHDR    = 0x33
+	sysIPV6_RECVHOPOPTS  = 0x35
+	sysIPV6_RECVDSTOPTS  = 0x38
+
+	sysIPV6_USE_MIN_MTU = 0x2c
+	sysIPV6_RECVPATHMTU = 0x2f
+	sysIPV6_PATHMTU     = 0x2e
+
+	sysIPV6_PKTINFO  = 0x21
+	sysIPV6_HOPLIMIT = 0x28
+	sysIPV6_NEXTHOP  = 0x30
+	sysIPV6_HOPOPTS  = 0x34
+	sysIPV6_DSTOPTS  = 0x36
+	sysIPV6_RTHDR    = 0x32
+
+	sysIPV6_RECVTCLASS = 0x2a
+
+	sysIPV6_TCLASS   = 0x2b
+	sysIPV6_DONTFRAG = 0x2d
+
+	sizeofSockaddrStorage = 0x508
+	sizeofSockaddrInet6   = 0x1c
+	sizeofInet6Pktinfo    = 0x14
+	sizeofIPv6Mtuinfo     = 0x20
+
+	sizeofIPv6Mreq       = 0x14
+	sizeofGroupReq       = 0x510
+	sizeofGroupSourceReq = 0xa18
+
+	sizeofICMPv6Filter = 0x20
+)
+
+type sockaddrStorage struct {
+	X__ss_len   uint8
+	Family      uint8
+	X__ss_pad1  [6]uint8
+	X__ss_align int64
+	X__ss_pad2  [1265]uint8
+	Pad_cgo_0   [7]byte
+}
+
+type sockaddrInet6 struct {
+	Len      uint8
+	Family   uint8
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+type inet6Pktinfo struct {
+	Addr    [16]byte /* in6_addr */
+	Ifindex int32
+}
+
+type ipv6Mtuinfo struct {
+	Addr sockaddrInet6
+	Mtu  uint32
+}
+
+type ipv6Mreq struct {
+	Multiaddr [16]byte /* in6_addr */
+	Interface uint32
+}
+
+type icmpv6Filter struct {
+	Filt [8]uint32
+}
+
+type groupReq struct {
+	Interface uint32
+	Group     sockaddrStorage
+}
+
+type groupSourceReq struct {
+	Interface uint32
+	Group     sockaddrStorage
+	Source    sockaddrStorage
+}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_darwin.go b/vendor/golang.org/x/net/ipv6/zsys_darwin.go
index 6aab1df..555744a 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_darwin.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_darwin.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_darwin.go
 
 package ipv6
diff --git a/vendor/golang.org/x/net/ipv6/zsys_dragonfly.go b/vendor/golang.org/x/net/ipv6/zsys_dragonfly.go
index d2de804..cf3cc10 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_dragonfly.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_dragonfly.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_dragonfly.go
 
 package ipv6
diff --git a/vendor/golang.org/x/net/ipv6/zsys_freebsd_386.go b/vendor/golang.org/x/net/ipv6/zsys_freebsd_386.go
index 919e572..73f31b2 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_freebsd_386.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_freebsd_386.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package ipv6
diff --git a/vendor/golang.org/x/net/ipv6/zsys_freebsd_amd64.go b/vendor/golang.org/x/net/ipv6/zsys_freebsd_amd64.go
index cb8141f..490ce7c 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_freebsd_amd64.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_freebsd_amd64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package ipv6
diff --git a/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm.go b/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm.go
index cb8141f..490ce7c 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_freebsd.go
 
 package ipv6
diff --git a/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm64.go b/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm64.go
new file mode 100644
index 0000000..47e99ac
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm64.go
@@ -0,0 +1,122 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_freebsd.go
+
+package ipv6
+
+const (
+	sysIPV6_UNICAST_HOPS   = 0x4
+	sysIPV6_MULTICAST_IF   = 0x9
+	sysIPV6_MULTICAST_HOPS = 0xa
+	sysIPV6_MULTICAST_LOOP = 0xb
+	sysIPV6_JOIN_GROUP     = 0xc
+	sysIPV6_LEAVE_GROUP    = 0xd
+	sysIPV6_PORTRANGE      = 0xe
+	sysICMP6_FILTER        = 0x12
+
+	sysIPV6_CHECKSUM = 0x1a
+	sysIPV6_V6ONLY   = 0x1b
+
+	sysIPV6_IPSEC_POLICY = 0x1c
+
+	sysIPV6_RTHDRDSTOPTS = 0x23
+
+	sysIPV6_RECVPKTINFO  = 0x24
+	sysIPV6_RECVHOPLIMIT = 0x25
+	sysIPV6_RECVRTHDR    = 0x26
+	sysIPV6_RECVHOPOPTS  = 0x27
+	sysIPV6_RECVDSTOPTS  = 0x28
+
+	sysIPV6_USE_MIN_MTU = 0x2a
+	sysIPV6_RECVPATHMTU = 0x2b
+
+	sysIPV6_PATHMTU = 0x2c
+
+	sysIPV6_PKTINFO  = 0x2e
+	sysIPV6_HOPLIMIT = 0x2f
+	sysIPV6_NEXTHOP  = 0x30
+	sysIPV6_HOPOPTS  = 0x31
+	sysIPV6_DSTOPTS  = 0x32
+	sysIPV6_RTHDR    = 0x33
+
+	sysIPV6_RECVTCLASS = 0x39
+
+	sysIPV6_AUTOFLOWLABEL = 0x3b
+
+	sysIPV6_TCLASS   = 0x3d
+	sysIPV6_DONTFRAG = 0x3e
+
+	sysIPV6_PREFER_TEMPADDR = 0x3f
+
+	sysIPV6_BINDANY = 0x40
+
+	sysIPV6_MSFILTER = 0x4a
+
+	sysMCAST_JOIN_GROUP         = 0x50
+	sysMCAST_LEAVE_GROUP        = 0x51
+	sysMCAST_JOIN_SOURCE_GROUP  = 0x52
+	sysMCAST_LEAVE_SOURCE_GROUP = 0x53
+	sysMCAST_BLOCK_SOURCE       = 0x54
+	sysMCAST_UNBLOCK_SOURCE     = 0x55
+
+	sysIPV6_PORTRANGE_DEFAULT = 0x0
+	sysIPV6_PORTRANGE_HIGH    = 0x1
+	sysIPV6_PORTRANGE_LOW     = 0x2
+
+	sizeofSockaddrStorage = 0x80
+	sizeofSockaddrInet6   = 0x1c
+	sizeofInet6Pktinfo    = 0x14
+	sizeofIPv6Mtuinfo     = 0x20
+
+	sizeofIPv6Mreq       = 0x14
+	sizeofGroupReq       = 0x88
+	sizeofGroupSourceReq = 0x108
+
+	sizeofICMPv6Filter = 0x20
+)
+
+type sockaddrStorage struct {
+	Len         uint8
+	Family      uint8
+	X__ss_pad1  [6]uint8
+	X__ss_align int64
+	X__ss_pad2  [112]uint8
+}
+
+type sockaddrInet6 struct {
+	Len      uint8
+	Family   uint8
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+type inet6Pktinfo struct {
+	Addr    [16]byte /* in6_addr */
+	Ifindex uint32
+}
+
+type ipv6Mtuinfo struct {
+	Addr sockaddrInet6
+	Mtu  uint32
+}
+
+type ipv6Mreq struct {
+	Multiaddr [16]byte /* in6_addr */
+	Interface uint32
+}
+
+type groupReq struct {
+	Interface uint32
+	Group     sockaddrStorage
+}
+
+type groupSourceReq struct {
+	Interface uint32
+	Group     sockaddrStorage
+	Source    sockaddrStorage
+}
+
+type icmpv6Filter struct {
+	Filt [8]uint32
+}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_386.go b/vendor/golang.org/x/net/ipv6/zsys_linux_386.go
index 73aa8c6..bde4a8f 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_386.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_386.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x104
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x8
 )
 
 type kernelSockaddrStorage struct {
@@ -155,16 +150,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [2]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_amd64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_amd64.go
index b64f015..992ac9e 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_amd64.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_amd64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -157,16 +152,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_arm.go b/vendor/golang.org/x/net/ipv6/zsys_linux_arm.go
index 73aa8c6..bde4a8f 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_arm.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_arm.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x104
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x8
 )
 
 type kernelSockaddrStorage struct {
@@ -155,16 +150,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [2]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_arm64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_arm64.go
index b64f015..992ac9e 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_arm64.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_arm64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -157,16 +152,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_mips.go b/vendor/golang.org/x/net/ipv6/zsys_linux_mips.go
index 73aa8c6..bde4a8f 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_mips.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_mips.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x104
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x8
 )
 
 type kernelSockaddrStorage struct {
@@ -155,16 +150,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [2]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_mips64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_mips64.go
index b64f015..992ac9e 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_mips64.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_mips64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -157,16 +152,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_mips64le.go b/vendor/golang.org/x/net/ipv6/zsys_linux_mips64le.go
index b64f015..992ac9e 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_mips64le.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_mips64le.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -157,16 +152,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_mipsle.go b/vendor/golang.org/x/net/ipv6/zsys_linux_mipsle.go
index 73aa8c6..bde4a8f 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_mipsle.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_mipsle.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x104
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x8
 )
 
 type kernelSockaddrStorage struct {
@@ -155,16 +150,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [2]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc.go b/vendor/golang.org/x/net/ipv6/zsys_linux_ppc.go
index c9bf6a8..66fd236 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_ppc.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x104
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x8
 )
 
 type kernelSockaddrStorage struct {
@@ -155,16 +150,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [2]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64.go
index b64f015..992ac9e 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -157,16 +152,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64le.go b/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64le.go
index b64f015..992ac9e 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64le.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64le.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -157,16 +152,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_riscv64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_riscv64.go
new file mode 100644
index 0000000..6083ddc
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_riscv64.go
@@ -0,0 +1,156 @@
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
+// cgo -godefs defs_linux.go
+
+// +build riscv64
+
+package ipv6
+
+const (
+	sysIPV6_ADDRFORM       = 0x1
+	sysIPV6_2292PKTINFO    = 0x2
+	sysIPV6_2292HOPOPTS    = 0x3
+	sysIPV6_2292DSTOPTS    = 0x4
+	sysIPV6_2292RTHDR      = 0x5
+	sysIPV6_2292PKTOPTIONS = 0x6
+	sysIPV6_CHECKSUM       = 0x7
+	sysIPV6_2292HOPLIMIT   = 0x8
+	sysIPV6_NEXTHOP        = 0x9
+	sysIPV6_FLOWINFO       = 0xb
+
+	sysIPV6_UNICAST_HOPS        = 0x10
+	sysIPV6_MULTICAST_IF        = 0x11
+	sysIPV6_MULTICAST_HOPS      = 0x12
+	sysIPV6_MULTICAST_LOOP      = 0x13
+	sysIPV6_ADD_MEMBERSHIP      = 0x14
+	sysIPV6_DROP_MEMBERSHIP     = 0x15
+	sysMCAST_JOIN_GROUP         = 0x2a
+	sysMCAST_LEAVE_GROUP        = 0x2d
+	sysMCAST_JOIN_SOURCE_GROUP  = 0x2e
+	sysMCAST_LEAVE_SOURCE_GROUP = 0x2f
+	sysMCAST_BLOCK_SOURCE       = 0x2b
+	sysMCAST_UNBLOCK_SOURCE     = 0x2c
+	sysMCAST_MSFILTER           = 0x30
+	sysIPV6_ROUTER_ALERT        = 0x16
+	sysIPV6_MTU_DISCOVER        = 0x17
+	sysIPV6_MTU                 = 0x18
+	sysIPV6_RECVERR             = 0x19
+	sysIPV6_V6ONLY              = 0x1a
+	sysIPV6_JOIN_ANYCAST        = 0x1b
+	sysIPV6_LEAVE_ANYCAST       = 0x1c
+
+	sysIPV6_FLOWLABEL_MGR = 0x20
+	sysIPV6_FLOWINFO_SEND = 0x21
+
+	sysIPV6_IPSEC_POLICY = 0x22
+	sysIPV6_XFRM_POLICY  = 0x23
+
+	sysIPV6_RECVPKTINFO  = 0x31
+	sysIPV6_PKTINFO      = 0x32
+	sysIPV6_RECVHOPLIMIT = 0x33
+	sysIPV6_HOPLIMIT     = 0x34
+	sysIPV6_RECVHOPOPTS  = 0x35
+	sysIPV6_HOPOPTS      = 0x36
+	sysIPV6_RTHDRDSTOPTS = 0x37
+	sysIPV6_RECVRTHDR    = 0x38
+	sysIPV6_RTHDR        = 0x39
+	sysIPV6_RECVDSTOPTS  = 0x3a
+	sysIPV6_DSTOPTS      = 0x3b
+	sysIPV6_RECVPATHMTU  = 0x3c
+	sysIPV6_PATHMTU      = 0x3d
+	sysIPV6_DONTFRAG     = 0x3e
+
+	sysIPV6_RECVTCLASS = 0x42
+	sysIPV6_TCLASS     = 0x43
+
+	sysIPV6_ADDR_PREFERENCES = 0x48
+
+	sysIPV6_PREFER_SRC_TMP            = 0x1
+	sysIPV6_PREFER_SRC_PUBLIC         = 0x2
+	sysIPV6_PREFER_SRC_PUBTMP_DEFAULT = 0x100
+	sysIPV6_PREFER_SRC_COA            = 0x4
+	sysIPV6_PREFER_SRC_HOME           = 0x400
+	sysIPV6_PREFER_SRC_CGA            = 0x8
+	sysIPV6_PREFER_SRC_NONCGA         = 0x800
+
+	sysIPV6_MINHOPCOUNT = 0x49
+
+	sysIPV6_ORIGDSTADDR     = 0x4a
+	sysIPV6_RECVORIGDSTADDR = 0x4a
+	sysIPV6_TRANSPARENT     = 0x4b
+	sysIPV6_UNICAST_IF      = 0x4c
+
+	sysICMPV6_FILTER = 0x1
+
+	sysICMPV6_FILTER_BLOCK       = 0x1
+	sysICMPV6_FILTER_PASS        = 0x2
+	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
+	sysICMPV6_FILTER_PASSONLY    = 0x4
+
+	sizeofKernelSockaddrStorage = 0x80
+	sizeofSockaddrInet6         = 0x1c
+	sizeofInet6Pktinfo          = 0x14
+	sizeofIPv6Mtuinfo           = 0x20
+	sizeofIPv6FlowlabelReq      = 0x20
+
+	sizeofIPv6Mreq       = 0x14
+	sizeofGroupReq       = 0x88
+	sizeofGroupSourceReq = 0x108
+
+	sizeofICMPv6Filter = 0x20
+)
+
+type kernelSockaddrStorage struct {
+	Family  uint16
+	X__data [126]int8
+}
+
+type sockaddrInet6 struct {
+	Family   uint16
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte /* in6_addr */
+	Scope_id uint32
+}
+
+type inet6Pktinfo struct {
+	Addr    [16]byte /* in6_addr */
+	Ifindex int32
+}
+
+type ipv6Mtuinfo struct {
+	Addr sockaddrInet6
+	Mtu  uint32
+}
+
+type ipv6FlowlabelReq struct {
+	Dst        [16]byte /* in6_addr */
+	Label      uint32
+	Action     uint8
+	Share      uint8
+	Flags      uint16
+	Expires    uint16
+	Linger     uint16
+	X__flr_pad uint32
+}
+
+type ipv6Mreq struct {
+	Multiaddr [16]byte /* in6_addr */
+	Ifindex   int32
+}
+
+type groupReq struct {
+	Interface uint32
+	Pad_cgo_0 [4]byte
+	Group     kernelSockaddrStorage
+}
+
+type groupSourceReq struct {
+	Interface uint32
+	Pad_cgo_0 [4]byte
+	Group     kernelSockaddrStorage
+	Source    kernelSockaddrStorage
+}
+
+type icmpv6Filter struct {
+	Data [8]uint32
+}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_s390x.go b/vendor/golang.org/x/net/ipv6/zsys_linux_s390x.go
index b64f015..992ac9e 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_linux_s390x.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_linux_s390x.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_linux.go
 
 package ipv6
@@ -84,9 +84,6 @@ const (
 	sysICMPV6_FILTER_BLOCKOTHERS = 0x3
 	sysICMPV6_FILTER_PASSONLY    = 0x4
 
-	sysSOL_SOCKET       = 0x1
-	sysSO_ATTACH_FILTER = 0x1a
-
 	sizeofKernelSockaddrStorage = 0x80
 	sizeofSockaddrInet6         = 0x1c
 	sizeofInet6Pktinfo          = 0x14
@@ -98,8 +95,6 @@ const (
 	sizeofGroupSourceReq = 0x108
 
 	sizeofICMPv6Filter = 0x20
-
-	sizeofSockFprog = 0x10
 )
 
 type kernelSockaddrStorage struct {
@@ -157,16 +152,3 @@ type groupSourceReq struct {
 type icmpv6Filter struct {
 	Data [8]uint32
 }
-
-type sockFProg struct {
-	Len       uint16
-	Pad_cgo_0 [6]byte
-	Filter    *sockFilter
-}
-
-type sockFilter struct {
-	Code uint16
-	Jt   uint8
-	Jf   uint8
-	K    uint32
-}
diff --git a/vendor/golang.org/x/net/ipv6/zsys_netbsd.go b/vendor/golang.org/x/net/ipv6/zsys_netbsd.go
index bcada13..e39571e 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_netbsd.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_netbsd.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_netbsd.go
 
 package ipv6
diff --git a/vendor/golang.org/x/net/ipv6/zsys_openbsd.go b/vendor/golang.org/x/net/ipv6/zsys_openbsd.go
index 86cf3c6..cc1899a 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_openbsd.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_openbsd.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_openbsd.go
 
 package ipv6
diff --git a/vendor/golang.org/x/net/ipv6/zsys_solaris.go b/vendor/golang.org/x/net/ipv6/zsys_solaris.go
index cf1837d..690eef9 100644
--- a/vendor/golang.org/x/net/ipv6/zsys_solaris.go
+++ b/vendor/golang.org/x/net/ipv6/zsys_solaris.go
@@ -1,4 +1,4 @@
-// Created by cgo -godefs - DO NOT EDIT
+// Code generated by cmd/cgo -godefs; DO NOT EDIT.
 // cgo -godefs defs_solaris.go
 
 package ipv6
diff --git a/vendor/golang.org/x/net/ipv6/zsys_zos_s390x.go b/vendor/golang.org/x/net/ipv6/zsys_zos_s390x.go
new file mode 100644
index 0000000..3f98069
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv6/zsys_zos_s390x.go
@@ -0,0 +1,106 @@
+// Copyright 2020 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.
+
+// Hand edited based on zerrors_zos_s390x.go
+// TODO(Bill O'Farrell): auto-generate.
+
+package ipv6
+
+const (
+	sysIPV6_ADDR_PREFERENCES  = 32
+	sysIPV6_CHECKSUM          = 19
+	sysIPV6_DONTFRAG          = 29
+	sysIPV6_DSTOPTS           = 23
+	sysIPV6_HOPLIMIT          = 11
+	sysIPV6_HOPOPTS           = 22
+	sysIPV6_JOIN_GROUP        = 5
+	sysIPV6_LEAVE_GROUP       = 6
+	sysIPV6_MULTICAST_HOPS    = 9
+	sysIPV6_MULTICAST_IF      = 7
+	sysIPV6_MULTICAST_LOOP    = 4
+	sysIPV6_NEXTHOP           = 20
+	sysIPV6_PATHMTU           = 12
+	sysIPV6_PKTINFO           = 13
+	sysIPV6_PREFER_SRC_CGA    = 0x10
+	sysIPV6_PREFER_SRC_COA    = 0x02
+	sysIPV6_PREFER_SRC_HOME   = 0x01
+	sysIPV6_PREFER_SRC_NONCGA = 0x20
+	sysIPV6_PREFER_SRC_PUBLIC = 0x08
+	sysIPV6_PREFER_SRC_TMP    = 0x04
+	sysIPV6_RECVDSTOPTS       = 28
+	sysIPV6_RECVHOPLIMIT      = 14
+	sysIPV6_RECVHOPOPTS       = 26
+	sysIPV6_RECVPATHMTU       = 16
+	sysIPV6_RECVPKTINFO       = 15
+	sysIPV6_RECVRTHDR         = 25
+	sysIPV6_RECVTCLASS        = 31
+	sysIPV6_RTHDR             = 21
+	sysIPV6_RTHDRDSTOPTS      = 24
+	sysIPV6_RTHDR_TYPE_0      = 0
+	sysIPV6_TCLASS            = 30
+	sysIPV6_UNICAST_HOPS      = 3
+	sysIPV6_USE_MIN_MTU       = 18
+	sysIPV6_V6ONLY            = 10
+
+	sysMCAST_JOIN_GROUP         = 40
+	sysMCAST_LEAVE_GROUP        = 41
+	sysMCAST_JOIN_SOURCE_GROUP  = 42
+	sysMCAST_LEAVE_SOURCE_GROUP = 43
+	sysMCAST_BLOCK_SOURCE       = 44
+	sysMCAST_UNBLOCK_SOURCE     = 45
+
+	sysICMP6_FILTER = 0x1
+
+	sizeofSockaddrStorage = 128
+	sizeofICMPv6Filter    = 32
+	sizeofInet6Pktinfo    = 20
+	sizeofIPv6Mtuinfo     = 32
+	sizeofSockaddrInet6   = 28
+	sizeofGroupReq        = 136
+	sizeofGroupSourceReq  = 264
+)
+
+type sockaddrStorage struct {
+	Len      uint8
+	Family   byte
+	ss_pad1  [6]byte
+	ss_align int64
+	ss_pad2  [112]byte
+}
+
+type sockaddrInet6 struct {
+	Len      uint8
+	Family   uint8
+	Port     uint16
+	Flowinfo uint32
+	Addr     [16]byte
+	Scope_id uint32
+}
+
+type inet6Pktinfo struct {
+	Addr    [16]byte
+	Ifindex uint32
+}
+
+type ipv6Mtuinfo struct {
+	Addr sockaddrInet6
+	Mtu  uint32
+}
+
+type groupReq struct {
+	Interface uint32
+	reserved  uint32
+	Group     sockaddrStorage
+}
+
+type groupSourceReq struct {
+	Interface uint32
+	reserved  uint32
+	Group     sockaddrStorage
+	Source    sockaddrStorage
+}
+
+type icmpv6Filter struct {
+	Filt [8]uint32
+}