diff options
Diffstat (limited to 'vendor/golang.org/x/net')
47 files changed, 2625 insertions, 293 deletions
diff --git a/vendor/golang.org/x/net/bpf/constants.go b/vendor/golang.org/x/net/bpf/constants.go index 2c8bbab7f..ccf6adafb 100644 --- a/vendor/golang.org/x/net/bpf/constants.go +++ b/vendor/golang.org/x/net/bpf/constants.go @@ -70,6 +70,9 @@ type Extension int // Extension functions available in the Linux kernel. const ( + // extOffset is the negative maximum number of instructions used + // to load instructions by overloading the K argument. + extOffset = -0x1000 // ExtLen returns the length of the packet. ExtLen Extension = 1 // ExtProto returns the packet's L3 protocol type. diff --git a/vendor/golang.org/x/net/bpf/instructions.go b/vendor/golang.org/x/net/bpf/instructions.go index 68ae6f549..3b4fd0891 100644 --- a/vendor/golang.org/x/net/bpf/instructions.go +++ b/vendor/golang.org/x/net/bpf/instructions.go @@ -57,6 +57,9 @@ func (ri RawInstruction) Disassemble() Instruction { } return LoadScratch{Dst: reg, N: int(ri.K)} case opAddrModeAbsolute: + if ri.K > extOffset+0xffffffff { + return LoadExtension{Num: Extension(-extOffset + ri.K)} + } return LoadAbsolute{Size: sz, Off: ri.K} case opAddrModeIndirect: return LoadIndirect{Size: sz, Off: ri.K} @@ -104,6 +107,14 @@ func (ri RawInstruction) Disassemble() Instruction { 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, @@ -111,6 +122,14 @@ func (ri RawInstruction) Disassemble() Instruction { 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, @@ -118,6 +137,14 @@ func (ri RawInstruction) Disassemble() Instruction { 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, @@ -171,6 +198,18 @@ func (a LoadConstant) Assemble() (RawInstruction, error) { return assembleLoad(a.Dst, 4, opAddrModeImmediate, a.Val) } +// String returns the the instruction in assembler notation. +func (a LoadConstant) String() string { + switch a.Dst { + case RegA: + return fmt.Sprintf("ld #%d", a.Val) + case RegX: + return fmt.Sprintf("ldx #%d", a.Val) + default: + return fmt.Sprintf("unknown instruction: %#v", a) + } +} + // LoadScratch loads scratch[N] into register Dst. type LoadScratch struct { Dst Register @@ -185,6 +224,18 @@ func (a LoadScratch) Assemble() (RawInstruction, error) { return assembleLoad(a.Dst, 4, opAddrModeScratch, uint32(a.N)) } +// String returns the the instruction in assembler notation. +func (a LoadScratch) String() string { + switch a.Dst { + case RegA: + return fmt.Sprintf("ld M[%d]", a.N) + case RegX: + return fmt.Sprintf("ldx M[%d]", a.N) + default: + return fmt.Sprintf("unknown instruction: %#v", a) + } +} + // LoadAbsolute loads packet[Off:Off+Size] as an integer value into // register A. type LoadAbsolute struct { @@ -197,6 +248,23 @@ func (a LoadAbsolute) Assemble() (RawInstruction, error) { return assembleLoad(RegA, a.Size, opAddrModeAbsolute, a.Off) } +// String returns the the instruction in assembler notation. +func (a LoadAbsolute) String() string { + switch a.Size { + case 1: // byte + return fmt.Sprintf("ldb [%d]", a.Off) + case 2: // half word + return fmt.Sprintf("ldh [%d]", a.Off) + case 4: // word + if a.Off > extOffset+0xffffffff { + return LoadExtension{Num: Extension(a.Off + 0x1000)}.String() + } + return fmt.Sprintf("ld [%d]", a.Off) + default: + return fmt.Sprintf("unknown instruction: %#v", a) + } +} + // LoadIndirect loads packet[X+Off:X+Off+Size] as an integer value // into register A. type LoadIndirect struct { @@ -209,6 +277,20 @@ func (a LoadIndirect) Assemble() (RawInstruction, error) { return assembleLoad(RegA, a.Size, opAddrModeIndirect, a.Off) } +// String returns the the instruction in assembler notation. +func (a LoadIndirect) String() string { + switch a.Size { + case 1: // byte + return fmt.Sprintf("ldb [x + %d]", a.Off) + case 2: // half word + return fmt.Sprintf("ldh [x + %d]", a.Off) + case 4: // word + return fmt.Sprintf("ld [x + %d]", a.Off) + default: + return fmt.Sprintf("unknown instruction: %#v", a) + } +} + // LoadMemShift multiplies the first 4 bits of the byte at packet[Off] // by 4 and stores the result in register X. // @@ -224,6 +306,11 @@ func (a LoadMemShift) Assemble() (RawInstruction, error) { return assembleLoad(RegX, 1, opAddrModeMemShift, a.Off) } +// String returns the the instruction in assembler notation. +func (a LoadMemShift) String() string { + return fmt.Sprintf("ldx 4*([%d]&0xf)", a.Off) +} + // LoadExtension invokes a linux-specific extension and stores the // result in register A. type LoadExtension struct { @@ -235,7 +322,47 @@ func (a LoadExtension) Assemble() (RawInstruction, error) { if a.Num == ExtLen { return assembleLoad(RegA, 4, opAddrModePacketLen, 0) } - return assembleLoad(RegA, 4, opAddrModeAbsolute, uint32(-0x1000+a.Num)) + return assembleLoad(RegA, 4, opAddrModeAbsolute, uint32(extOffset+a.Num)) +} + +// String returns the the instruction in assembler notation. +func (a LoadExtension) String() string { + switch a.Num { + case ExtLen: + return "ld #len" + case ExtProto: + return "ld #proto" + case ExtType: + return "ld #type" + case ExtPayloadOffset: + return "ld #poff" + case ExtInterfaceIndex: + return "ld #ifidx" + case ExtNetlinkAttr: + return "ld #nla" + case ExtNetlinkAttrNested: + return "ld #nlan" + case ExtMark: + return "ld #mark" + case ExtQueue: + return "ld #queue" + case ExtLinkLayerType: + return "ld #hatype" + case ExtRXHash: + return "ld #rxhash" + case ExtCPUID: + return "ld #cpu" + case ExtVLANTag: + return "ld #vlan_tci" + case ExtVLANTagPresent: + return "ld #vlan_avail" + case ExtVLANProto: + return "ld #vlan_tpid" + case ExtRand: + return "ld #rand" + default: + return fmt.Sprintf("unknown instruction: %#v", a) + } } // StoreScratch stores register Src into scratch[N]. @@ -265,6 +392,18 @@ func (a StoreScratch) Assemble() (RawInstruction, error) { }, nil } +// String returns the the instruction in assembler notation. +func (a StoreScratch) String() string { + switch a.Src { + case RegA: + return fmt.Sprintf("st M[%d]", a.N) + case RegX: + return fmt.Sprintf("stx M[%d]", a.N) + default: + return fmt.Sprintf("unknown instruction: %#v", a) + } +} + // ALUOpConstant executes A = A <Op> Val. type ALUOpConstant struct { Op ALUOp @@ -279,6 +418,34 @@ func (a ALUOpConstant) Assemble() (RawInstruction, error) { }, nil } +// String returns the the instruction in assembler notation. +func (a ALUOpConstant) String() string { + switch a.Op { + case ALUOpAdd: + return fmt.Sprintf("add #%d", a.Val) + case ALUOpSub: + return fmt.Sprintf("sub #%d", a.Val) + case ALUOpMul: + return fmt.Sprintf("mul #%d", a.Val) + case ALUOpDiv: + return fmt.Sprintf("div #%d", a.Val) + case ALUOpMod: + return fmt.Sprintf("mod #%d", a.Val) + case ALUOpAnd: + return fmt.Sprintf("and #%d", a.Val) + case ALUOpOr: + return fmt.Sprintf("or #%d", a.Val) + case ALUOpXor: + return fmt.Sprintf("xor #%d", a.Val) + case ALUOpShiftLeft: + return fmt.Sprintf("lsh #%d", a.Val) + case ALUOpShiftRight: + return fmt.Sprintf("rsh #%d", a.Val) + default: + return fmt.Sprintf("unknown instruction: %#v", a) + } +} + // ALUOpX executes A = A <Op> X type ALUOpX struct { Op ALUOp @@ -291,6 +458,34 @@ func (a ALUOpX) Assemble() (RawInstruction, error) { }, nil } +// String returns the the instruction in assembler notation. +func (a ALUOpX) String() string { + switch a.Op { + case ALUOpAdd: + return "add x" + case ALUOpSub: + return "sub x" + case ALUOpMul: + return "mul x" + case ALUOpDiv: + return "div x" + case ALUOpMod: + return "mod x" + case ALUOpAnd: + return "and x" + case ALUOpOr: + return "or x" + case ALUOpXor: + return "xor x" + case ALUOpShiftLeft: + return "lsh x" + case ALUOpShiftRight: + return "rsh x" + default: + return fmt.Sprintf("unknown instruction: %#v", a) + } +} + // NegateA executes A = -A. type NegateA struct{} @@ -301,6 +496,11 @@ func (a NegateA) Assemble() (RawInstruction, error) { }, nil } +// String returns the the instruction in assembler notation. +func (a NegateA) String() string { + return fmt.Sprintf("neg") +} + // Jump skips the following Skip instructions in the program. type Jump struct { Skip uint32 @@ -314,6 +514,11 @@ func (a Jump) Assemble() (RawInstruction, error) { }, nil } +// String returns the the instruction in assembler notation. +func (a Jump) String() string { + return fmt.Sprintf("ja %d", a.Skip) +} + // JumpIf skips the following Skip instructions in the program if A // <Cond> Val is true. type JumpIf struct { @@ -361,6 +566,51 @@ func (a JumpIf) Assemble() (RawInstruction, error) { }, nil } +// String returns the the instruction in assembler notation. +func (a JumpIf) String() string { + switch a.Cond { + // K == A + case JumpEqual: + return conditionalJump(a, "jeq", "jneq") + // K != A + case JumpNotEqual: + return fmt.Sprintf("jneq #%d,%d", a.Val, a.SkipTrue) + // K > A + case JumpGreaterThan: + return conditionalJump(a, "jgt", "jle") + // K < A + case JumpLessThan: + return fmt.Sprintf("jlt #%d,%d", a.Val, a.SkipTrue) + // K >= A + case JumpGreaterOrEqual: + return conditionalJump(a, "jge", "jlt") + // K <= A + case JumpLessOrEqual: + return fmt.Sprintf("jle #%d,%d", a.Val, a.SkipTrue) + // K & A != 0 + case JumpBitsSet: + if a.SkipFalse > 0 { + return fmt.Sprintf("jset #%d,%d,%d", a.Val, a.SkipTrue, a.SkipFalse) + } + return fmt.Sprintf("jset #%d,%d", a.Val, a.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() + default: + return fmt.Sprintf("unknown instruction: %#v", a) + } +} + +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) + } + return fmt.Sprintf("%s #%d,%d", positiveJump, inst.Val, inst.SkipTrue) + } + return fmt.Sprintf("%s #%d,%d", negativeJump, inst.Val, inst.SkipFalse) +} + // RetA exits the BPF program, returning the value of register A. type RetA struct{} @@ -371,6 +621,11 @@ func (a RetA) Assemble() (RawInstruction, error) { }, nil } +// String returns the the instruction in assembler notation. +func (a RetA) String() string { + return fmt.Sprintf("ret a") +} + // RetConstant exits the BPF program, returning a constant value. type RetConstant struct { Val uint32 @@ -384,6 +639,11 @@ func (a RetConstant) Assemble() (RawInstruction, error) { }, nil } +// String returns the the instruction in assembler notation. +func (a RetConstant) String() string { + return fmt.Sprintf("ret #%d", a.Val) +} + // TXA copies the value of register X to register A. type TXA struct{} @@ -394,6 +654,11 @@ func (a TXA) Assemble() (RawInstruction, error) { }, nil } +// String returns the the instruction in assembler notation. +func (a TXA) String() string { + return fmt.Sprintf("txa") +} + // TAX copies the value of register A to register X. type TAX struct{} @@ -404,6 +669,11 @@ func (a TAX) Assemble() (RawInstruction, error) { }, nil } +// String returns the the instruction in assembler notation. +func (a TAX) String() string { + return fmt.Sprintf("tax") +} + func assembleLoad(dst Register, loadSize int, mode uint16, k uint32) (RawInstruction, error) { var ( cls uint16 diff --git a/vendor/golang.org/x/net/bpf/instructions_test.go b/vendor/golang.org/x/net/bpf/instructions_test.go index 833d1e175..dde474aba 100644 --- a/vendor/golang.org/x/net/bpf/instructions_test.go +++ b/vendor/golang.org/x/net/bpf/instructions_test.go @@ -5,6 +5,7 @@ package bpf import ( + "fmt" "io/ioutil" "reflect" "strconv" @@ -143,11 +144,6 @@ func TestInterop(t *testing.T) { } // Check that assembly and disassembly match each other. -// -// Because we offer "fake" jump conditions that don't appear in the -// machine code, disassembly won't be a 1:1 match with the original -// source, although the behavior will be identical. However, -// reassembling the disassembly should produce an identical program. func TestAsmDisasm(t *testing.T) { prog1, err := Assemble(allInstructions) if err != nil { @@ -155,30 +151,375 @@ func TestAsmDisasm(t *testing.T) { } t.Logf("Assembled program is %d instructions long", len(prog1)) - src, allDecoded := Disassemble(prog1) + got, allDecoded := Disassemble(prog1) if !allDecoded { t.Errorf("Disassemble(Assemble(allInstructions)) produced unrecognized instructions:") - for i, inst := range src { + for i, inst := range got { if r, ok := inst.(RawInstruction); ok { t.Logf(" insn %d, %#v --> %#v", i+1, allInstructions[i], r) } } } - prog2, err := Assemble(src) - if err != nil { - t.Fatalf("assembly of Disassemble(Assemble(allInstructions)) failed: %s", err) + if len(allInstructions) != len(got) { + t.Fatalf("disassembly changed program size: %d insns before, %d insns after", len(allInstructions), len(got)) } + if !reflect.DeepEqual(allInstructions, got) { + t.Errorf("program mutated by disassembly:") + for i := range got { + if !reflect.DeepEqual(allInstructions[i], got[i]) { + t.Logf(" insn %d, s: %#v, p1: %#v, got: %#v", i+1, allInstructions[i], prog1[i], got[i]) + } + } + } +} + +type InvalidInstruction struct{} - if len(prog2) != len(prog1) { - t.Fatalf("disassembly changed program size: %d insns before, %d insns after", len(prog1), len(prog2)) +func (a InvalidInstruction) Assemble() (RawInstruction, error) { + return RawInstruction{}, fmt.Errorf("Invalid Instruction") +} + +func (a InvalidInstruction) String() string { + return fmt.Sprintf("unknown instruction: %#v", a) +} + +func TestString(t *testing.T) { + testCases := []struct { + instruction Instruction + assembler string + }{ + { + instruction: LoadConstant{Dst: RegA, Val: 42}, + assembler: "ld #42", + }, + { + instruction: LoadConstant{Dst: RegX, Val: 42}, + assembler: "ldx #42", + }, + { + instruction: LoadConstant{Dst: 0xffff, Val: 42}, + assembler: "unknown instruction: bpf.LoadConstant{Dst:0xffff, Val:0x2a}", + }, + { + instruction: LoadScratch{Dst: RegA, N: 3}, + assembler: "ld M[3]", + }, + { + instruction: LoadScratch{Dst: RegX, N: 3}, + assembler: "ldx M[3]", + }, + { + instruction: LoadScratch{Dst: 0xffff, N: 3}, + assembler: "unknown instruction: bpf.LoadScratch{Dst:0xffff, N:3}", + }, + { + instruction: LoadAbsolute{Off: 42, Size: 1}, + assembler: "ldb [42]", + }, + { + instruction: LoadAbsolute{Off: 42, Size: 2}, + assembler: "ldh [42]", + }, + { + instruction: LoadAbsolute{Off: 42, Size: 4}, + assembler: "ld [42]", + }, + { + instruction: LoadAbsolute{Off: 42, Size: -1}, + assembler: "unknown instruction: bpf.LoadAbsolute{Off:0x2a, Size:-1}", + }, + { + instruction: LoadIndirect{Off: 42, Size: 1}, + assembler: "ldb [x + 42]", + }, + { + instruction: LoadIndirect{Off: 42, Size: 2}, + assembler: "ldh [x + 42]", + }, + { + instruction: LoadIndirect{Off: 42, Size: 4}, + assembler: "ld [x + 42]", + }, + { + instruction: LoadIndirect{Off: 42, Size: -1}, + assembler: "unknown instruction: bpf.LoadIndirect{Off:0x2a, Size:-1}", + }, + { + instruction: LoadMemShift{Off: 42}, + assembler: "ldx 4*([42]&0xf)", + }, + { + instruction: LoadExtension{Num: ExtLen}, + assembler: "ld #len", + }, + { + instruction: LoadExtension{Num: ExtProto}, + assembler: "ld #proto", + }, + { + instruction: LoadExtension{Num: ExtType}, + assembler: "ld #type", + }, + { + instruction: LoadExtension{Num: ExtPayloadOffset}, + assembler: "ld #poff", + }, + { + instruction: LoadExtension{Num: ExtInterfaceIndex}, + assembler: "ld #ifidx", + }, + { + instruction: LoadExtension{Num: ExtNetlinkAttr}, + assembler: "ld #nla", + }, + { + instruction: LoadExtension{Num: ExtNetlinkAttrNested}, + assembler: "ld #nlan", + }, + { + instruction: LoadExtension{Num: ExtMark}, + assembler: "ld #mark", + }, + { + instruction: LoadExtension{Num: ExtQueue}, + assembler: "ld #queue", + }, + { + instruction: LoadExtension{Num: ExtLinkLayerType}, + assembler: "ld #hatype", + }, + { + instruction: LoadExtension{Num: ExtRXHash}, + assembler: "ld #rxhash", + }, + { + instruction: LoadExtension{Num: ExtCPUID}, + assembler: "ld #cpu", + }, + { + instruction: LoadExtension{Num: ExtVLANTag}, + assembler: "ld #vlan_tci", + }, + { + instruction: LoadExtension{Num: ExtVLANTagPresent}, + assembler: "ld #vlan_avail", + }, + { + instruction: LoadExtension{Num: ExtVLANProto}, + assembler: "ld #vlan_tpid", + }, + { + instruction: LoadExtension{Num: ExtRand}, + assembler: "ld #rand", + }, + { + instruction: LoadAbsolute{Off: 0xfffff038, Size: 4}, + assembler: "ld #rand", + }, + { + instruction: LoadExtension{Num: 0xfff}, + assembler: "unknown instruction: bpf.LoadExtension{Num:4095}", + }, + { + instruction: StoreScratch{Src: RegA, N: 3}, + assembler: "st M[3]", + }, + { + instruction: StoreScratch{Src: RegX, N: 3}, + assembler: "stx M[3]", + }, + { + instruction: StoreScratch{Src: 0xffff, N: 3}, + assembler: "unknown instruction: bpf.StoreScratch{Src:0xffff, N:3}", + }, + { + instruction: ALUOpConstant{Op: ALUOpAdd, Val: 42}, + assembler: "add #42", + }, + { + instruction: ALUOpConstant{Op: ALUOpSub, Val: 42}, + assembler: "sub #42", + }, + { + instruction: ALUOpConstant{Op: ALUOpMul, Val: 42}, + assembler: "mul #42", + }, + { + instruction: ALUOpConstant{Op: ALUOpDiv, Val: 42}, + assembler: "div #42", + }, + { + instruction: ALUOpConstant{Op: ALUOpOr, Val: 42}, + assembler: "or #42", + }, + { + instruction: ALUOpConstant{Op: ALUOpAnd, Val: 42}, + assembler: "and #42", + }, + { + instruction: ALUOpConstant{Op: ALUOpShiftLeft, Val: 42}, + assembler: "lsh #42", + }, + { + instruction: ALUOpConstant{Op: ALUOpShiftRight, Val: 42}, + assembler: "rsh #42", + }, + { + instruction: ALUOpConstant{Op: ALUOpMod, Val: 42}, + assembler: "mod #42", + }, + { + instruction: ALUOpConstant{Op: ALUOpXor, Val: 42}, + assembler: "xor #42", + }, + { + instruction: ALUOpConstant{Op: 0xffff, Val: 42}, + assembler: "unknown instruction: bpf.ALUOpConstant{Op:0xffff, Val:0x2a}", + }, + { + instruction: ALUOpX{Op: ALUOpAdd}, + assembler: "add x", + }, + { + instruction: ALUOpX{Op: ALUOpSub}, + assembler: "sub x", + }, + { + instruction: ALUOpX{Op: ALUOpMul}, + assembler: "mul x", + }, + { + instruction: ALUOpX{Op: ALUOpDiv}, + assembler: "div x", + }, + { + instruction: ALUOpX{Op: ALUOpOr}, + assembler: "or x", + }, + { + instruction: ALUOpX{Op: ALUOpAnd}, + assembler: "and x", + }, + { + instruction: ALUOpX{Op: ALUOpShiftLeft}, + assembler: "lsh x", + }, + { + instruction: ALUOpX{Op: ALUOpShiftRight}, + assembler: "rsh x", + }, + { + instruction: ALUOpX{Op: ALUOpMod}, + assembler: "mod x", + }, + { + instruction: ALUOpX{Op: ALUOpXor}, + assembler: "xor x", + }, + { + instruction: ALUOpX{Op: 0xffff}, + assembler: "unknown instruction: bpf.ALUOpX{Op:0xffff}", + }, + { + instruction: NegateA{}, + assembler: "neg", + }, + { + instruction: Jump{Skip: 10}, + assembler: "ja 10", + }, + { + instruction: JumpIf{Cond: JumpEqual, Val: 42, SkipTrue: 8, SkipFalse: 9}, + assembler: "jeq #42,8,9", + }, + { + instruction: JumpIf{Cond: JumpEqual, Val: 42, SkipTrue: 8}, + assembler: "jeq #42,8", + }, + { + instruction: JumpIf{Cond: JumpEqual, Val: 42, SkipFalse: 8}, + assembler: "jneq #42,8", + }, + { + instruction: JumpIf{Cond: JumpNotEqual, Val: 42, SkipTrue: 8}, + assembler: "jneq #42,8", + }, + { + instruction: JumpIf{Cond: JumpLessThan, Val: 42, SkipTrue: 7}, + assembler: "jlt #42,7", + }, + { + instruction: JumpIf{Cond: JumpLessOrEqual, Val: 42, SkipTrue: 6}, + assembler: "jle #42,6", + }, + { + instruction: JumpIf{Cond: JumpGreaterThan, Val: 42, SkipTrue: 4, SkipFalse: 5}, + assembler: "jgt #42,4,5", + }, + { + instruction: JumpIf{Cond: JumpGreaterThan, Val: 42, SkipTrue: 4}, + assembler: "jgt #42,4", + }, + { + instruction: JumpIf{Cond: JumpGreaterOrEqual, Val: 42, SkipTrue: 3, SkipFalse: 4}, + assembler: "jge #42,3,4", + }, + { + instruction: JumpIf{Cond: JumpGreaterOrEqual, Val: 42, SkipTrue: 3}, + assembler: "jge #42,3", + }, + { + instruction: JumpIf{Cond: JumpBitsSet, Val: 42, SkipTrue: 2, SkipFalse: 3}, + assembler: "jset #42,2,3", + }, + { + instruction: JumpIf{Cond: JumpBitsSet, Val: 42, SkipTrue: 2}, + assembler: "jset #42,2", + }, + { + instruction: JumpIf{Cond: JumpBitsNotSet, Val: 42, SkipTrue: 2, SkipFalse: 3}, + assembler: "jset #42,3,2", + }, + { + instruction: JumpIf{Cond: JumpBitsNotSet, Val: 42, SkipTrue: 2}, + assembler: "jset #42,0,2", + }, + { + instruction: JumpIf{Cond: 0xffff, Val: 42, SkipTrue: 1, SkipFalse: 2}, + assembler: "unknown instruction: bpf.JumpIf{Cond:0xffff, Val:0x2a, SkipTrue:0x1, SkipFalse:0x2}", + }, + { + instruction: TAX{}, + assembler: "tax", + }, + { + instruction: TXA{}, + assembler: "txa", + }, + { + instruction: RetA{}, + assembler: "ret a", + }, + { + instruction: RetConstant{Val: 42}, + assembler: "ret #42", + }, + // Invalid instruction + { + instruction: InvalidInstruction{}, + assembler: "unknown instruction: bpf.InvalidInstruction{}", + }, } - if !reflect.DeepEqual(prog1, prog2) { - t.Errorf("program mutated by disassembly:") - for i := range prog2 { - if !reflect.DeepEqual(prog1[i], prog2[i]) { - t.Logf(" insn %d, s: %#v, p1: %#v, p2: %#v", i+1, allInstructions[i], prog1[i], prog2[i]) + + for _, testCase := range testCases { + if input, ok := testCase.instruction.(fmt.Stringer); ok { + got := input.String() + if got != testCase.assembler { + t.Errorf("String did not return expected assembler notation, expected: %s, got: %s", testCase.assembler, got) } + } else { + t.Errorf("Instruction %#v is not a fmt.Stringer", testCase.instruction) } } } diff --git a/vendor/golang.org/x/net/context/context_test.go b/vendor/golang.org/x/net/context/context_test.go index 9554dcf71..62844131b 100644 --- a/vendor/golang.org/x/net/context/context_test.go +++ b/vendor/golang.org/x/net/context/context_test.go @@ -243,45 +243,51 @@ func testDeadline(c Context, wait time.Duration, t *testing.T) { } func TestDeadline(t *testing.T) { - c, _ := WithDeadline(Background(), time.Now().Add(100*time.Millisecond)) + t.Parallel() + const timeUnit = 500 * time.Millisecond + c, _ := WithDeadline(Background(), time.Now().Add(1*timeUnit)) if got, prefix := fmt.Sprint(c), "context.Background.WithDeadline("; !strings.HasPrefix(got, prefix) { t.Errorf("c.String() = %q want prefix %q", got, prefix) } - testDeadline(c, 200*time.Millisecond, t) + testDeadline(c, 2*timeUnit, t) - c, _ = WithDeadline(Background(), time.Now().Add(100*time.Millisecond)) + c, _ = WithDeadline(Background(), time.Now().Add(1*timeUnit)) o := otherContext{c} - testDeadline(o, 200*time.Millisecond, t) + testDeadline(o, 2*timeUnit, t) - c, _ = WithDeadline(Background(), time.Now().Add(100*time.Millisecond)) + c, _ = WithDeadline(Background(), time.Now().Add(1*timeUnit)) o = otherContext{c} - c, _ = WithDeadline(o, time.Now().Add(300*time.Millisecond)) - testDeadline(c, 200*time.Millisecond, t) + c, _ = WithDeadline(o, time.Now().Add(3*timeUnit)) + testDeadline(c, 2*timeUnit, t) } func TestTimeout(t *testing.T) { - c, _ := WithTimeout(Background(), 100*time.Millisecond) + t.Parallel() + const timeUnit = 500 * time.Millisecond + c, _ := WithTimeout(Background(), 1*timeUnit) if got, prefix := fmt.Sprint(c), "context.Background.WithDeadline("; !strings.HasPrefix(got, prefix) { t.Errorf("c.String() = %q want prefix %q", got, prefix) } - testDeadline(c, 200*time.Millisecond, t) + testDeadline(c, 2*timeUnit, t) - c, _ = WithTimeout(Background(), 100*time.Millisecond) + c, _ = WithTimeout(Background(), 1*timeUnit) o := otherContext{c} - testDeadline(o, 200*time.Millisecond, t) + testDeadline(o, 2*timeUnit, t) - c, _ = WithTimeout(Background(), 100*time.Millisecond) + c, _ = WithTimeout(Background(), 1*timeUnit) o = otherContext{c} - c, _ = WithTimeout(o, 300*time.Millisecond) - testDeadline(c, 200*time.Millisecond, t) + c, _ = WithTimeout(o, 3*timeUnit) + testDeadline(c, 2*timeUnit, t) } func TestCanceledTimeout(t *testing.T) { - c, _ := WithTimeout(Background(), 200*time.Millisecond) + t.Parallel() + const timeUnit = 500 * time.Millisecond + c, _ := WithTimeout(Background(), 2*timeUnit) o := otherContext{c} - c, cancel := WithTimeout(o, 400*time.Millisecond) + c, cancel := WithTimeout(o, 4*timeUnit) cancel() - time.Sleep(100 * time.Millisecond) // let cancelation propagate + time.Sleep(1 * timeUnit) // let cancelation propagate select { case <-c.Done(): default: diff --git a/vendor/golang.org/x/net/http2/frame.go b/vendor/golang.org/x/net/http2/frame.go index b0c79b01a..358833fed 100644 --- a/vendor/golang.org/x/net/http2/frame.go +++ b/vendor/golang.org/x/net/http2/frame.go @@ -317,10 +317,12 @@ type Framer struct { // non-Continuation or Continuation on a different stream is // attempted to be written. - logReads bool + logReads, logWrites bool - debugFramer *Framer // only use for logging written writes - debugFramerBuf *bytes.Buffer + debugFramer *Framer // only use for logging written writes + debugFramerBuf *bytes.Buffer + debugReadLoggerf func(string, ...interface{}) + debugWriteLoggerf func(string, ...interface{}) } func (fr *Framer) maxHeaderListSize() uint32 { @@ -355,7 +357,7 @@ func (f *Framer) endWrite() error { byte(length>>16), byte(length>>8), byte(length)) - if logFrameWrites { + if f.logWrites { f.logWrite() } @@ -378,10 +380,10 @@ func (f *Framer) logWrite() { f.debugFramerBuf.Write(f.wbuf) fr, err := f.debugFramer.ReadFrame() if err != nil { - log.Printf("http2: Framer %p: failed to decode just-written frame", f) + f.debugWriteLoggerf("http2: Framer %p: failed to decode just-written frame", f) return } - log.Printf("http2: Framer %p: wrote %v", f, summarizeFrame(fr)) + f.debugWriteLoggerf("http2: Framer %p: wrote %v", f, summarizeFrame(fr)) } func (f *Framer) writeByte(v byte) { f.wbuf = append(f.wbuf, v) } @@ -399,9 +401,12 @@ const ( // NewFramer returns a Framer that writes frames to w and reads them from r. func NewFramer(w io.Writer, r io.Reader) *Framer { fr := &Framer{ - w: w, - r: r, - logReads: logFrameReads, + w: w, + r: r, + logReads: logFrameReads, + logWrites: logFrameWrites, + debugReadLoggerf: log.Printf, + debugWriteLoggerf: log.Printf, } fr.getReadBuf = func(size uint32) []byte { if cap(fr.readBuf) >= int(size) { @@ -483,7 +488,7 @@ func (fr *Framer) ReadFrame() (Frame, error) { return nil, err } if fr.logReads { - log.Printf("http2: Framer %p: read %v", fr, summarizeFrame(f)) + fr.debugReadLoggerf("http2: Framer %p: read %v", fr, summarizeFrame(f)) } if fh.Type == FrameHeaders && fr.ReadMetaHeaders != nil { return fr.readMetaFrame(f.(*HeadersFrame)) @@ -1419,8 +1424,8 @@ func (fr *Framer) readMetaFrame(hf *HeadersFrame) (*MetaHeadersFrame, error) { hdec.SetEmitEnabled(true) hdec.SetMaxStringLength(fr.maxHeaderStringLen()) hdec.SetEmitFunc(func(hf hpack.HeaderField) { - if VerboseLogs && logFrameReads { - log.Printf("http2: decoded hpack field %+v", hf) + if VerboseLogs && fr.logReads { + fr.debugReadLoggerf("http2: decoded hpack field %+v", hf) } if !httplex.ValidHeaderFieldValue(hf.Value) { invalid = headerFieldValueError(hf.Value) diff --git a/vendor/golang.org/x/net/http2/go18.go b/vendor/golang.org/x/net/http2/go18.go index 8c0dd2508..633202c39 100644 --- a/vendor/golang.org/x/net/http2/go18.go +++ b/vendor/golang.org/x/net/http2/go18.go @@ -8,6 +8,7 @@ package http2 import ( "crypto/tls" + "io" "net/http" ) @@ -39,3 +40,11 @@ func configureServer18(h1 *http.Server, h2 *Server) error { func shouldLogPanic(panicValue interface{}) bool { return panicValue != nil && panicValue != http.ErrAbortHandler } + +func reqGetBody(req *http.Request) func() (io.ReadCloser, error) { + return req.GetBody +} + +func reqBodyIsNoBody(body io.ReadCloser) bool { + return body == http.NoBody +} diff --git a/vendor/golang.org/x/net/http2/h2i/h2i.go b/vendor/golang.org/x/net/http2/h2i/h2i.go index 228edf8a4..76c778711 100644 --- a/vendor/golang.org/x/net/http2/h2i/h2i.go +++ b/vendor/golang.org/x/net/http2/h2i/h2i.go @@ -88,6 +88,14 @@ func withPort(host string) string { return host } +// withoutPort strips the port from addr if present. +func withoutPort(addr string) string { + if h, _, err := net.SplitHostPort(addr); err == nil { + return h + } + return addr +} + // h2i is the app's state. type h2i struct { host string @@ -134,7 +142,7 @@ func main() { func (app *h2i) Main() error { cfg := &tls.Config{ - ServerName: app.host, + ServerName: withoutPort(app.host), NextProtos: strings.Split(*flagNextProto, ","), InsecureSkipVerify: *flagInsecure, } @@ -473,7 +481,7 @@ func (app *h2i) encodeHeaders(req *http.Request) []byte { host = req.URL.Host } - path := req.URL.Path + path := req.RequestURI if path == "" { path = "/" } diff --git a/vendor/golang.org/x/net/http2/not_go18.go b/vendor/golang.org/x/net/http2/not_go18.go index 2e600dc35..efbf83c32 100644 --- a/vendor/golang.org/x/net/http2/not_go18.go +++ b/vendor/golang.org/x/net/http2/not_go18.go @@ -6,7 +6,10 @@ package http2 -import "net/http" +import ( + "io" + "net/http" +) func configureServer18(h1 *http.Server, h2 *Server) error { // No IdleTimeout to sync prior to Go 1.8. @@ -16,3 +19,9 @@ func configureServer18(h1 *http.Server, h2 *Server) error { func shouldLogPanic(panicValue interface{}) bool { return panicValue != nil } + +func reqGetBody(req *http.Request) func() (io.ReadCloser, error) { + return nil +} + +func reqBodyIsNoBody(io.ReadCloser) bool { return false } diff --git a/vendor/golang.org/x/net/http2/server.go b/vendor/golang.org/x/net/http2/server.go index 0b6b4b08d..3c6b90ccd 100644 --- a/vendor/golang.org/x/net/http2/server.go +++ b/vendor/golang.org/x/net/http2/server.go @@ -278,6 +278,16 @@ func (s *Server) ServeConn(c net.Conn, opts *ServeConnOpts) { pushEnabled: true, } + // The net/http package sets the write deadline from the + // http.Server.WriteTimeout during the TLS handshake, but then + // passes the connection off to us with the deadline already + // set. Disarm it here so that it is not applied to additional + // streams opened on this connection. + // TODO: implement WriteTimeout fully. See Issue 18437. + if sc.hs.WriteTimeout != 0 { + sc.conn.SetWriteDeadline(time.Time{}) + } + if s.NewWriteScheduler != nil { sc.writeSched = s.NewWriteScheduler() } else { @@ -423,6 +433,11 @@ func (sc *serverConn) maxHeaderListSize() uint32 { return uint32(n + typicalHeaders*perFieldOverhead) } +func (sc *serverConn) curOpenStreams() uint32 { + sc.serveG.check() + return sc.curClientStreams + sc.curPushedStreams +} + // stream represents a stream. This is the minimal metadata needed by // the serve goroutine. Most of the actual stream state is owned by // the http.Handler's goroutine in the responseWriter. Because the @@ -448,8 +463,7 @@ type stream struct { numTrailerValues int64 weight uint8 state streamState - sentReset bool // only true once detached from streams map - gotReset bool // only true once detacted from streams map + resetQueued bool // RST_STREAM queued for write; set by sc.resetStream gotTrailerHeader bool // HEADER frame for trailers was seen wroteHeaders bool // whether we wrote headers (not status 100) reqBuf []byte // if non-nil, body pipe buffer to return later at EOF @@ -753,7 +767,7 @@ func (sc *serverConn) serve() { fn(loopNum) } - if sc.inGoAway && sc.curClientStreams == 0 && !sc.needToSendGoAway && !sc.writingFrame { + if sc.inGoAway && sc.curOpenStreams() == 0 && !sc.needToSendGoAway && !sc.writingFrame { return } } @@ -869,8 +883,34 @@ func (sc *serverConn) writeFrameFromHandler(wr FrameWriteRequest) error { func (sc *serverConn) writeFrame(wr FrameWriteRequest) { sc.serveG.check() + // If true, wr will not be written and wr.done will not be signaled. var ignoreWrite bool + // We are not allowed to write frames on closed streams. RFC 7540 Section + // 5.1.1 says: "An endpoint MUST NOT send frames other than PRIORITY on + // a closed stream." Our server never sends PRIORITY, so that exception + // does not apply. + // + // The serverConn might close an open stream while the stream's handler + // is still running. For example, the server might close a stream when it + // receives bad data from the client. If this happens, the handler might + // attempt to write a frame after the stream has been closed (since the + // handler hasn't yet been notified of the close). In this case, we simply + // ignore the frame. The handler will notice that the stream is closed when + // it waits for the frame to be written. + // + // As an exception to this rule, we allow sending RST_STREAM after close. + // This allows us to immediately reject new streams without tracking any + // state for those streams (except for the queued RST_STREAM frame). This + // may result in duplicate RST_STREAMs in some cases, but the client should + // ignore those. + if wr.StreamID() != 0 { + _, isReset := wr.write.(StreamError) + if state, _ := sc.state(wr.StreamID()); state == stateClosed && !isReset { + ignoreWrite = true + } + } + // Don't send a 100-continue response if we've already sent headers. // See golang.org/issue/14030. switch wr.write.(type) { @@ -878,6 +918,11 @@ func (sc *serverConn) writeFrame(wr FrameWriteRequest) { wr.stream.wroteHeaders = true case write100ContinueHeadersFrame: if wr.stream.wroteHeaders { + // We do not need to notify wr.done because this frame is + // never written with wr.done != nil. + if wr.done != nil { + panic("wr.done != nil for write100ContinueHeadersFrame") + } ignoreWrite = true } } @@ -901,14 +946,15 @@ func (sc *serverConn) startFrameWrite(wr FrameWriteRequest) { if st != nil { switch st.state { case stateHalfClosedLocal: - panic("internal error: attempt to send frame on half-closed-local stream") - case stateClosed: - if st.sentReset || st.gotReset { - // Skip this frame. - sc.scheduleFrameWrite() - return + switch wr.write.(type) { + case StreamError, handlerPanicRST, writeWindowUpdate: + // RFC 7540 Section 5.1 allows sending RST_STREAM, PRIORITY, and WINDOW_UPDATE + // in this state. (We never send PRIORITY from the server, so that is not checked.) + default: + panic(fmt.Sprintf("internal error: attempt to send frame on a half-closed-local stream: %v", wr)) } - panic(fmt.Sprintf("internal error: attempt to send a write %v on a closed stream", wr)) + case stateClosed: + panic(fmt.Sprintf("internal error: attempt to send frame on a closed stream: %v", wr)) } } if wpp, ok := wr.write.(*writePushPromise); ok { @@ -916,9 +962,7 @@ func (sc *serverConn) startFrameWrite(wr FrameWriteRequest) { wpp.promisedID, err = wpp.allocatePromisedID() if err != nil { sc.writingFrameAsync = false - if wr.done != nil { - wr.done <- err - } + wr.replyToWriter(err) return } } @@ -951,25 +995,9 @@ func (sc *serverConn) wroteFrame(res frameWriteResult) { sc.writingFrameAsync = false wr := res.wr - st := wr.stream - - closeStream := endsStream(wr.write) - - if _, ok := wr.write.(handlerPanicRST); ok { - sc.closeStream(st, errHandlerPanicked) - } - - // Reply (if requested) to the blocked ServeHTTP goroutine. - if ch := wr.done; ch != nil { - select { - case ch <- res.err: - default: - panic(fmt.Sprintf("unbuffered done channel passed in for type %T", wr.write)) - } - } - wr.write = nil // prevent use (assume it's tainted after wr.done send) - if closeStream { + if writeEndsStream(wr.write) { + st := wr.stream if st == nil { panic("internal error: expecting non-nil stream") } @@ -982,15 +1010,29 @@ func (sc *serverConn) wroteFrame(res frameWriteResult) { // reading data (see possible TODO at top of // this file), we go into closed state here // anyway, after telling the peer we're - // hanging up on them. - st.state = stateHalfClosedLocal // won't last long, but necessary for closeStream via resetStream - errCancel := streamError(st.id, ErrCodeCancel) - sc.resetStream(errCancel) + // hanging up on them. We'll transition to + // stateClosed after the RST_STREAM frame is + // written. + st.state = stateHalfClosedLocal + sc.resetStream(streamError(st.id, ErrCodeCancel)) case stateHalfClosedRemote: sc.closeStream(st, errHandlerComplete) } + } else { + switch v := wr.write.(type) { + case StreamError: + // st may be unknown if the RST_STREAM was generated to reject bad input. + if st, ok := sc.streams[v.StreamID]; ok { + sc.closeStream(st, v) + } + case handlerPanicRST: + sc.closeStream(wr.stream, errHandlerPanicked) + } } + // Reply (if requested) to unblock the ServeHTTP goroutine. + wr.replyToWriter(res.err) + sc.scheduleFrameWrite() } @@ -1087,8 +1129,7 @@ func (sc *serverConn) resetStream(se StreamError) { sc.serveG.check() sc.writeFrame(FrameWriteRequest{write: se}) if st, ok := sc.streams[se.StreamID]; ok { - st.sentReset = true - sc.closeStream(st, se) + st.resetQueued = true } } @@ -1252,7 +1293,6 @@ func (sc *serverConn) processResetStream(f *RSTStreamFrame) error { return ConnectionError(ErrCodeProtocol) } if st != nil { - st.gotReset = true st.cancelCtx() sc.closeStream(st, streamError(f.StreamID, f.ErrCode)) } @@ -1391,7 +1431,7 @@ func (sc *serverConn) processData(f *DataFrame) error { // type PROTOCOL_ERROR." return ConnectionError(ErrCodeProtocol) } - if st == nil || state != stateOpen || st.gotTrailerHeader { + if st == nil || state != stateOpen || st.gotTrailerHeader || st.resetQueued { // This includes sending a RST_STREAM if the stream is // in stateHalfClosedLocal (which currently means that // the http.Handler returned, so it's done reading & @@ -1411,6 +1451,10 @@ func (sc *serverConn) processData(f *DataFrame) error { sc.inflow.take(int32(f.Length)) sc.sendWindowUpdate(nil, int(f.Length)) // conn-level + if st != nil && st.resetQueued { + // Already have a stream error in flight. Don't send another. + return nil + } return streamError(id, ErrCodeStreamClosed) } if st.body == nil { @@ -1519,6 +1563,11 @@ func (sc *serverConn) processHeaders(f *MetaHeadersFrame) error { // open, let it process its own HEADERS frame (trailers at this // point, if it's valid). if st := sc.streams[f.StreamID]; st != nil { + if st.resetQueued { + // We're sending RST_STREAM to close the stream, so don't bother + // processing this frame. + return nil + } return st.processTrailerHeaders(f) } @@ -1681,7 +1730,7 @@ func (sc *serverConn) newStream(id, pusherID uint32, state streamState) *stream } else { sc.curClientStreams++ } - if sc.curClientStreams+sc.curPushedStreams == 1 { + if sc.curOpenStreams() == 1 { sc.setConnState(http.StateActive) } @@ -2556,7 +2605,7 @@ func (sc *serverConn) startPush(msg startPushRequest) { scheme: msg.url.Scheme, authority: msg.url.Host, path: msg.url.RequestURI(), - header: msg.header, + header: cloneHeader(msg.header), // clone since handler runs concurrently with writing the PUSH_PROMISE }) if err != nil { // Should not happen, since we've already validated msg.url. diff --git a/vendor/golang.org/x/net/http2/server_push_test.go b/vendor/golang.org/x/net/http2/server_push_test.go index 3fea20870..f70edd3c7 100644 --- a/vendor/golang.org/x/net/http2/server_push_test.go +++ b/vendor/golang.org/x/net/http2/server_push_test.go @@ -244,6 +244,50 @@ func TestServer_Push_Success(t *testing.T) { } } +func TestServer_Push_SuccessNoRace(t *testing.T) { + // Regression test for issue #18326. Ensure the request handler can mutate + // pushed request headers without racing with the PUSH_PROMISE write. + errc := make(chan error, 2) + st := newServerTester(t, func(w http.ResponseWriter, r *http.Request) { + switch r.URL.RequestURI() { + case "/": + opt := &http.PushOptions{ + Header: http.Header{"User-Agent": {"testagent"}}, + } + if err := w.(http.Pusher).Push("/pushed", opt); err != nil { + errc <- fmt.Errorf("error pushing: %v", err) + return + } + w.WriteHeader(200) + errc <- nil + + case "/pushed": + // Update request header, ensure there is no race. + r.Header.Set("User-Agent", "newagent") + r.Header.Set("Cookie", "cookie") + w.WriteHeader(200) + errc <- nil + + default: + errc <- fmt.Errorf("unknown RequestURL %q", r.URL.RequestURI()) + } + }) + + // Send one request, which should push one response. + st.greet() + getSlash(st) + for k := 0; k < 2; k++ { + select { + case <-time.After(2 * time.Second): + t.Errorf("timeout waiting for handler %d to finish", k) + case err := <-errc: + if err != nil { + t.Fatal(err) + } + } + } +} + func TestServer_Push_RejectRecursivePush(t *testing.T) { // Expect two requests, but might get three if there's a bug and the second push succeeds. errc := make(chan error, 3) @@ -386,18 +430,20 @@ func TestServer_Push_RejectForbiddenHeader(t *testing.T) { func TestServer_Push_StateTransitions(t *testing.T) { const body = "foo" - startedPromise := make(chan bool) + gotPromise := make(chan bool) finishedPush := make(chan bool) + st := newServerTester(t, func(w http.ResponseWriter, r *http.Request) { switch r.URL.RequestURI() { case "/": if err := w.(http.Pusher).Push("/pushed", nil); err != nil { t.Errorf("Push error: %v", err) } - close(startedPromise) // Don't finish this request until the push finishes so we don't // nondeterministically interleave output frames with the push. <-finishedPush + case "/pushed": + <-gotPromise } w.Header().Set("Content-Type", "text/html") w.Header().Set("Content-Length", strconv.Itoa(len(body))) @@ -414,11 +460,16 @@ func TestServer_Push_StateTransitions(t *testing.T) { t.Fatalf("streamState(2)=%v, want %v", got, want) } getSlash(st) - <-startedPromise + // After the PUSH_PROMISE is sent, the stream should be stateHalfClosedRemote. + st.wantPushPromise() if got, want := st.streamState(2), stateHalfClosedRemote; got != want { t.Fatalf("streamState(2)=%v, want %v", got, want) } - st.wantPushPromise() + // We stall the HTTP handler for "/pushed" until the above check. If we don't + // stall the handler, then the handler might write HEADERS and DATA and finish + // the stream before we check st.streamState(2) -- should that happen, we'll + // see stateClosed and fail the above check. + close(gotPromise) st.wantHeaders() if df := st.wantData(); !df.StreamEnded() { t.Fatal("expected END_STREAM flag on DATA") diff --git a/vendor/golang.org/x/net/http2/server_test.go b/vendor/golang.org/x/net/http2/server_test.go index 2e6146b67..dfa4cff2e 100644 --- a/vendor/golang.org/x/net/http2/server_test.go +++ b/vendor/golang.org/x/net/http2/server_test.go @@ -45,13 +45,22 @@ type serverTester struct { t testing.TB ts *httptest.Server fr *Framer - logBuf *bytes.Buffer - logFilter []string // substrings to filter out - scMu sync.Mutex // guards sc + serverLogBuf bytes.Buffer // logger for httptest.Server + logFilter []string // substrings to filter out + scMu sync.Mutex // guards sc sc *serverConn hpackDec *hpack.Decoder decodedHeaders [][2]string + // If http2debug!=2, then we capture Frame debug logs that will be written + // to t.Log after a test fails. The read and write logs use separate locks + // and buffers so we don't accidentally introduce synchronization between + // the read and write goroutines, which may hide data races. + frameReadLogMu sync.Mutex + frameReadLogBuf bytes.Buffer + frameWriteLogMu sync.Mutex + frameWriteLogBuf bytes.Buffer + // writing headers: headerBuf bytes.Buffer hpackEnc *hpack.Encoder @@ -75,7 +84,6 @@ var optQuiet = serverTesterOpt("quiet_logging") func newServerTester(t testing.TB, handler http.HandlerFunc, opts ...interface{}) *serverTester { resetHooks() - logBuf := new(bytes.Buffer) ts := httptest.NewUnstartedServer(handler) tlsConfig := &tls.Config{ @@ -110,9 +118,8 @@ func newServerTester(t testing.TB, handler http.HandlerFunc, opts ...interface{} ConfigureServer(ts.Config, h2server) st := &serverTester{ - t: t, - ts: ts, - logBuf: logBuf, + t: t, + ts: ts, } st.hpackEnc = hpack.NewEncoder(&st.headerBuf) st.hpackDec = hpack.NewDecoder(initialHeaderTableSize, st.onHeaderField) @@ -121,7 +128,7 @@ func newServerTester(t testing.TB, handler http.HandlerFunc, opts ...interface{} if quiet { ts.Config.ErrorLog = log.New(ioutil.Discard, "", 0) } else { - ts.Config.ErrorLog = log.New(io.MultiWriter(stderrv(), twriter{t: t, st: st}, logBuf), "", log.LstdFlags) + ts.Config.ErrorLog = log.New(io.MultiWriter(stderrv(), twriter{t: t, st: st}, &st.serverLogBuf), "", log.LstdFlags) } ts.StartTLS() @@ -142,6 +149,22 @@ func newServerTester(t testing.TB, handler http.HandlerFunc, opts ...interface{} } st.cc = cc st.fr = NewFramer(cc, cc) + if !logFrameReads && !logFrameWrites { + st.fr.debugReadLoggerf = func(m string, v ...interface{}) { + m = time.Now().Format("2006-01-02 15:04:05.999999999 ") + strings.TrimPrefix(m, "http2: ") + "\n" + st.frameReadLogMu.Lock() + fmt.Fprintf(&st.frameReadLogBuf, m, v...) + st.frameReadLogMu.Unlock() + } + st.fr.debugWriteLoggerf = func(m string, v ...interface{}) { + m = time.Now().Format("2006-01-02 15:04:05.999999999 ") + strings.TrimPrefix(m, "http2: ") + "\n" + st.frameWriteLogMu.Lock() + fmt.Fprintf(&st.frameWriteLogBuf, m, v...) + st.frameWriteLogMu.Unlock() + } + st.fr.logReads = true + st.fr.logWrites = true + } } return st } @@ -201,6 +224,18 @@ func (st *serverTester) awaitIdle() { func (st *serverTester) Close() { if st.t.Failed() { + st.frameReadLogMu.Lock() + if st.frameReadLogBuf.Len() > 0 { + st.t.Logf("Framer read log:\n%s", st.frameReadLogBuf.String()) + } + st.frameReadLogMu.Unlock() + + st.frameWriteLogMu.Lock() + if st.frameWriteLogBuf.Len() > 0 { + st.t.Logf("Framer write log:\n%s", st.frameWriteLogBuf.String()) + } + st.frameWriteLogMu.Unlock() + // If we failed already (and are likely in a Fatal, // unwindowing), force close the connection, so the // httptest.Server doesn't wait forever for the conn @@ -1100,10 +1135,10 @@ func TestServer_RejectsLargeFrames(t *testing.T) { if gf.ErrCode != ErrCodeFrameSize { t.Errorf("GOAWAY err = %v; want %v", gf.ErrCode, ErrCodeFrameSize) } - if st.logBuf.Len() != 0 { + if st.serverLogBuf.Len() != 0 { // Previously we spun here for a bit until the GOAWAY disconnect // timer fired, logging while we fired. - t.Errorf("unexpected server output: %.500s\n", st.logBuf.Bytes()) + t.Errorf("unexpected server output: %.500s\n", st.serverLogBuf.Bytes()) } } @@ -1227,6 +1262,7 @@ func testServerPostUnblock(t *testing.T, inHandler <- true errc <- handler(w, r) }) + defer st.Close() st.greet() st.writeHeaders(HeadersFrameParam{ StreamID: 1, @@ -1244,7 +1280,6 @@ func testServerPostUnblock(t *testing.T, case <-time.After(5 * time.Second): t.Fatal("timeout waiting for Handler to return") } - st.Close() } func TestServer_RSTStream_Unblocks_Read(t *testing.T) { diff --git a/vendor/golang.org/x/net/http2/transport.go b/vendor/golang.org/x/net/http2/transport.go index 8f5f84412..0c7e859db 100644 --- a/vendor/golang.org/x/net/http2/transport.go +++ b/vendor/golang.org/x/net/http2/transport.go @@ -191,6 +191,7 @@ type clientStream struct { ID uint32 resc chan resAndError bufPipe pipe // buffered pipe with the flow-controlled response payload + startedWrite bool // started request body write; guarded by cc.mu requestedGzip bool on100 func() // optional code to run if get a 100 continue response @@ -314,6 +315,10 @@ func authorityAddr(scheme string, authority string) (addr string) { if a, err := idna.ToASCII(host); err == nil { host = a } + // IPv6 address literal, without a port: + if strings.HasPrefix(host, "[") && strings.HasSuffix(host, "]") { + return host + ":" + port + } return net.JoinHostPort(host, port) } @@ -332,8 +337,10 @@ func (t *Transport) RoundTripOpt(req *http.Request, opt RoundTripOpt) (*http.Res } traceGotConn(req, cc) res, err := cc.RoundTrip(req) - if shouldRetryRequest(req, err) { - continue + if err != nil { + if req, err = shouldRetryRequest(req, err); err == nil { + continue + } } if err != nil { t.vlogf("RoundTrip failure: %v", err) @@ -355,12 +362,41 @@ func (t *Transport) CloseIdleConnections() { var ( errClientConnClosed = errors.New("http2: client conn is closed") errClientConnUnusable = errors.New("http2: client conn not usable") + + errClientConnGotGoAway = errors.New("http2: Transport received Server's graceful shutdown GOAWAY") + errClientConnGotGoAwayAfterSomeReqBody = errors.New("http2: Transport received Server's graceful shutdown GOAWAY; some request body already written") ) -func shouldRetryRequest(req *http.Request, err error) bool { - // TODO: retry GET requests (no bodies) more aggressively, if shutdown - // before response. - return err == errClientConnUnusable +// shouldRetryRequest is called by RoundTrip when a request fails to get +// response headers. It is always called with a non-nil error. +// It returns either a request to retry (either the same request, or a +// modified clone), or an error if the request can't be replayed. +func shouldRetryRequest(req *http.Request, err error) (*http.Request, error) { + switch err { + default: + return nil, err + case errClientConnUnusable, errClientConnGotGoAway: + return req, nil + case errClientConnGotGoAwayAfterSomeReqBody: + // If the Body is nil (or http.NoBody), it's safe to reuse + // this request and its Body. + if req.Body == nil || reqBodyIsNoBody(req.Body) { + return req, nil + } + // Otherwise we depend on the Request having its GetBody + // func defined. + getBody := reqGetBody(req) // Go 1.8: getBody = req.GetBody + if getBody == nil { + return nil, errors.New("http2: Transport: peer server initiated graceful shutdown after some of Request.Body was written; define Request.GetBody to avoid this error") + } + body, err := getBody() + if err != nil { + return nil, err + } + newReq := *req + newReq.Body = body + return &newReq, nil + } } func (t *Transport) dialClientConn(addr string, singleUse bool) (*ClientConn, error) { @@ -513,6 +549,15 @@ func (cc *ClientConn) setGoAway(f *GoAwayFrame) { if old != nil && old.ErrCode != ErrCodeNo { cc.goAway.ErrCode = old.ErrCode } + last := f.LastStreamID + for streamID, cs := range cc.streams { + if streamID > last { + select { + case cs.resc <- resAndError{err: errClientConnGotGoAway}: + default: + } + } + } } func (cc *ClientConn) CanTakeNewRequest() bool { @@ -613,8 +658,6 @@ func commaSeparatedTrailers(req *http.Request) (string, error) { } if len(keys) > 0 { sort.Strings(keys) - // TODO: could do better allocation-wise here, but trailers are rare, - // so being lazy for now. return strings.Join(keys, ","), nil } return "", nil @@ -773,6 +816,13 @@ func (cc *ClientConn) RoundTrip(req *http.Request) (*http.Response, error) { cs.abortRequestBodyWrite(errStopReqBodyWrite) } if re.err != nil { + if re.err == errClientConnGotGoAway { + cc.mu.Lock() + if cs.startedWrite { + re.err = errClientConnGotGoAwayAfterSomeReqBody + } + cc.mu.Unlock() + } cc.forgetStreamID(cs.ID) return nil, re.err } @@ -2013,6 +2063,9 @@ func (t *Transport) getBodyWriterState(cs *clientStream, body io.Reader) (s body resc := make(chan error, 1) s.resc = resc s.fn = func() { + cs.cc.mu.Lock() + cs.startedWrite = true + cs.cc.mu.Unlock() resc <- cs.writeRequestBody(body, cs.req.Body) } s.delay = t.expectContinueTimeout() diff --git a/vendor/golang.org/x/net/http2/transport_test.go b/vendor/golang.org/x/net/http2/transport_test.go index f9287e575..8ef4f3388 100644 --- a/vendor/golang.org/x/net/http2/transport_test.go +++ b/vendor/golang.org/x/net/http2/transport_test.go @@ -2073,10 +2073,11 @@ func TestTransportHandlerBodyClose(t *testing.T) { // https://golang.org/issue/15930 func TestTransportFlowControl(t *testing.T) { - const ( - total = 100 << 20 // 100MB - bufLen = 1 << 16 - ) + const bufLen = 64 << 10 + var total int64 = 100 << 20 // 100MB + if testing.Short() { + total = 10 << 20 + } var wrote int64 // updated atomically st := newServerTester(t, func(w http.ResponseWriter, r *http.Request) { @@ -2745,3 +2746,171 @@ func TestTransportCancelDataResponseRace(t *testing.T) { t.Errorf("Got = %q; want %q", slurp, msg) } } + +func TestTransportRetryAfterGOAWAY(t *testing.T) { + var dialer struct { + sync.Mutex + count int + } + ct1 := make(chan *clientTester) + ct2 := make(chan *clientTester) + + ln := newLocalListener(t) + defer ln.Close() + + tr := &Transport{ + TLSClientConfig: tlsConfigInsecure, + } + tr.DialTLS = func(network, addr string, cfg *tls.Config) (net.Conn, error) { + dialer.Lock() + defer dialer.Unlock() + dialer.count++ + if dialer.count == 3 { + return nil, errors.New("unexpected number of dials") + } + cc, err := net.Dial("tcp", ln.Addr().String()) + if err != nil { + return nil, fmt.Errorf("dial error: %v", err) + } + sc, err := ln.Accept() + if err != nil { + return nil, fmt.Errorf("accept error: %v", err) + } + ct := &clientTester{ + t: t, + tr: tr, + cc: cc, + sc: sc, + fr: NewFramer(sc, sc), + } + switch dialer.count { + case 1: + ct1 <- ct + case 2: + ct2 <- ct + } + return cc, nil + } + + errs := make(chan error, 3) + done := make(chan struct{}) + defer close(done) + + // Client. + go func() { + req, _ := http.NewRequest("GET", "https://dummy.tld/", nil) + res, err := tr.RoundTrip(req) + if res != nil { + res.Body.Close() + if got := res.Header.Get("Foo"); got != "bar" { + err = fmt.Errorf("foo header = %q; want bar", got) + } + } + if err != nil { + err = fmt.Errorf("RoundTrip: %v", err) + } + errs <- err + }() + + connToClose := make(chan io.Closer, 2) + + // Server for the first request. + go func() { + var ct *clientTester + select { + case ct = <-ct1: + case <-done: + return + } + + connToClose <- ct.cc + ct.greet() + hf, err := ct.firstHeaders() + if err != nil { + errs <- fmt.Errorf("server1 failed reading HEADERS: %v", err) + return + } + t.Logf("server1 got %v", hf) + if err := ct.fr.WriteGoAway(0 /*max id*/, ErrCodeNo, nil); err != nil { + errs <- fmt.Errorf("server1 failed writing GOAWAY: %v", err) + return + } + errs <- nil + }() + + // Server for the second request. + go func() { + var ct *clientTester + select { + case ct = <-ct2: + case <-done: + return + } + + connToClose <- ct.cc + ct.greet() + hf, err := ct.firstHeaders() + if err != nil { + errs <- fmt.Errorf("server2 failed reading HEADERS: %v", err) + return + } + t.Logf("server2 got %v", hf) + + var buf bytes.Buffer + enc := hpack.NewEncoder(&buf) + enc.WriteField(hpack.HeaderField{Name: ":status", Value: "200"}) + enc.WriteField(hpack.HeaderField{Name: "foo", Value: "bar"}) + err = ct.fr.WriteHeaders(HeadersFrameParam{ + StreamID: hf.StreamID, + EndHeaders: true, + EndStream: false, + BlockFragment: buf.Bytes(), + }) + if err != nil { + errs <- fmt.Errorf("server2 failed writing response HEADERS: %v", err) + } else { + errs <- nil + } + }() + + for k := 0; k < 3; k++ { + select { + case err := <-errs: + if err != nil { + t.Error(err) + } + case <-time.After(1 * time.Second): + t.Errorf("timed out") + } + } + + for { + select { + case c := <-connToClose: + c.Close() + default: + return + } + } +} + +func TestAuthorityAddr(t *testing.T) { + tests := []struct { + scheme, authority string + want string + }{ + {"http", "foo.com", "foo.com:80"}, + {"https", "foo.com", "foo.com:443"}, + {"https", "foo.com:1234", "foo.com:1234"}, + {"https", "1.2.3.4:1234", "1.2.3.4:1234"}, + {"https", "1.2.3.4", "1.2.3.4:443"}, + {"https", "[::1]:1234", "[::1]:1234"}, + {"https", "[::1]", "[::1]:443"}, + } + for _, tt := range tests { + got := authorityAddr(tt.scheme, tt.authority) + if got != tt.want { + t.Errorf("authorityAddr(%q, %q) = %q; want %q", tt.scheme, tt.authority, got, tt.want) + } + } +} diff --git a/vendor/golang.org/x/net/http2/write.go b/vendor/golang.org/x/net/http2/write.go index 1c135fdf7..6b0dfae31 100644 --- a/vendor/golang.org/x/net/http2/write.go +++ b/vendor/golang.org/x/net/http2/write.go @@ -45,9 +45,10 @@ type writeContext interface { HeaderEncoder() (*hpack.Encoder, *bytes.Buffer) } -// endsStream reports whether the given frame writer w will locally -// close the stream. -func endsStream(w writeFramer) bool { +// writeEndsStream reports whether w writes a frame that will transition +// the stream to a half-closed local state. This returns false for RST_STREAM, +// which closes the entire stream (not just the local half). +func writeEndsStream(w writeFramer) bool { switch v := w.(type) { case *writeData: return v.endStream @@ -57,7 +58,7 @@ func endsStream(w writeFramer) bool { // This can only happen if the caller reuses w after it's // been intentionally nil'ed out to prevent use. Keep this // here to catch future refactoring breaking it. - panic("endsStream called on nil writeFramer") + panic("writeEndsStream called on nil writeFramer") } return false } diff --git a/vendor/golang.org/x/net/http2/writesched.go b/vendor/golang.org/x/net/http2/writesched.go index caa77c7cb..4fe307307 100644 --- a/vendor/golang.org/x/net/http2/writesched.go +++ b/vendor/golang.org/x/net/http2/writesched.go @@ -160,6 +160,20 @@ func (wr FrameWriteRequest) String() string { return fmt.Sprintf("[FrameWriteRequest stream=%d, ch=%v, writer=%v]", wr.StreamID(), wr.done != nil, des) } +// replyToWriter sends err to wr.done and panics if the send must block +// This does nothing if wr.done is nil. +func (wr *FrameWriteRequest) replyToWriter(err error) { + if wr.done == nil { + return + } + select { + case wr.done <- err: + default: + panic(fmt.Sprintf("unbuffered done channel passed in for type %T", wr.write)) + } + wr.write = nil // prevent use (assume it's tainted after wr.done send) +} + // writeQueue is used by implementations of WriteScheduler. type writeQueue struct { s []FrameWriteRequest diff --git a/vendor/golang.org/x/net/http2/writesched_priority_test.go b/vendor/golang.org/x/net/http2/writesched_priority_test.go index 2b232043c..f2b535a2c 100644 --- a/vendor/golang.org/x/net/http2/writesched_priority_test.go +++ b/vendor/golang.org/x/net/http2/writesched_priority_test.go @@ -434,7 +434,7 @@ func TestPriorityFlowControl(t *testing.T) { t.Fatalf("Pop(%d)=false, want true", i) } if got, want := wr.DataSize(), 8; got != want { - t.Fatalf("Pop(%d)=%d bytes, want %d bytes", got, want) + t.Fatalf("Pop(%d)=%d bytes, want %d bytes", i, got, want) } } } diff --git a/vendor/golang.org/x/net/http2/writesched_random_test.go b/vendor/golang.org/x/net/http2/writesched_random_test.go index 97b0bcdbf..3bf4aa36a 100644 --- a/vendor/golang.org/x/net/http2/writesched_random_test.go +++ b/vendor/golang.org/x/net/http2/writesched_random_test.go @@ -30,7 +30,7 @@ func TestRandomScheduler(t *testing.T) { t.Fatalf("got %d frames, expected 6", len(order)) } if order[0].StreamID() != 0 || order[1].StreamID() != 0 { - t.Fatalf("expected non-stream frames first", order[0], order[1]) + t.Fatal("expected non-stream frames first", order[0], order[1]) } got := make(map[uint32]bool) for _, wr := range order[2:] { diff --git a/vendor/golang.org/x/net/icmp/message.go b/vendor/golang.org/x/net/icmp/message.go index ea01bba38..81140b0df 100644 --- a/vendor/golang.org/x/net/icmp/message.go +++ b/vendor/golang.org/x/net/icmp/message.go @@ -24,6 +24,8 @@ import ( "golang.org/x/net/ipv6" ) +// BUG(mikio): This package is not implemented on NaCl and Plan 9. + var ( errMessageTooShort = errors.New("message too short") errHeaderTooShort = errors.New("header too short") diff --git a/vendor/golang.org/x/net/internal/netreflect/socket_test.go b/vendor/golang.org/x/net/internal/netreflect/socket_test.go index 305665ac1..49b97ed54 100644 --- a/vendor/golang.org/x/net/internal/netreflect/socket_test.go +++ b/vendor/golang.org/x/net/internal/netreflect/socket_test.go @@ -5,76 +5,20 @@ package netreflect_test import ( - "fmt" - "io/ioutil" "net" "os" - "runtime" "testing" "golang.org/x/net/internal/netreflect" + "golang.org/x/net/internal/nettest" ) -func localPath() string { - f, err := ioutil.TempFile("", "netreflect") - if err != nil { - panic(err) - } - path := f.Name() - f.Close() - os.Remove(path) - return path -} - -func newLocalListener(network string) (net.Listener, error) { - switch network { - case "tcp": - if ln, err := net.Listen("tcp4", "127.0.0.1:0"); err == nil { - return ln, nil - } - return net.Listen("tcp6", "[::1]:0") - case "tcp4": - return net.Listen("tcp4", "127.0.0.1:0") - case "tcp6": - return net.Listen("tcp6", "[::1]:0") - case "unix", "unixpacket": - return net.Listen(network, localPath()) - } - return nil, fmt.Errorf("%s is not supported", network) -} - -func newLocalPacketListener(network string) (net.PacketConn, error) { - switch network { - case "udp": - if c, err := net.ListenPacket("udp4", "127.0.0.1:0"); err == nil { - return c, nil - } - return net.ListenPacket("udp6", "[::1]:0") - case "udp4": - return net.ListenPacket("udp4", "127.0.0.1:0") - case "udp6": - return net.ListenPacket("udp6", "[::1]:0") - case "unixgram": - return net.ListenPacket(network, localPath()) - } - return nil, fmt.Errorf("%s is not supported", network) -} - func TestSocketOf(t *testing.T) { for _, network := range []string{"tcp", "unix", "unixpacket"} { - switch runtime.GOOS { - case "darwin": - if network == "unixpacket" { - continue - } - case "nacl", "plan9": + if !nettest.TestableNetwork(network) { continue - case "windows": - if network == "unix" || network == "unixpacket" { - continue - } } - ln, err := newLocalListener(network) + ln, err := nettest.NewLocalListener(network) if err != nil { t.Error(err) continue @@ -101,15 +45,10 @@ func TestSocketOf(t *testing.T) { func TestPacketSocketOf(t *testing.T) { for _, network := range []string{"udp", "unixgram"} { - switch runtime.GOOS { - case "nacl", "plan9": + if !nettest.TestableNetwork(network) { continue - case "windows": - if network == "unixgram" { - continue - } } - c, err := newLocalPacketListener(network) + c, err := nettest.NewLocalPacketListener(network) if err != nil { t.Error(err) continue diff --git a/vendor/golang.org/x/net/internal/nettest/stack.go b/vendor/golang.org/x/net/internal/nettest/stack.go index 5ab95305d..cc92c035b 100644 --- a/vendor/golang.org/x/net/internal/nettest/stack.go +++ b/vendor/golang.org/x/net/internal/nettest/stack.go @@ -2,35 +2,40 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// Package nettest provides utilities for IP testing. +// Package nettest provides utilities for network testing. package nettest // import "golang.org/x/net/internal/nettest" -import "net" +import ( + "fmt" + "io/ioutil" + "net" + "os" + "runtime" +) -// SupportsIPv4 reports whether the platform supports IPv4 networking -// functionality. -func SupportsIPv4() bool { - ln, err := net.Listen("tcp4", "127.0.0.1:0") - if err != nil { - return false +var ( + supportsIPv4 bool + supportsIPv6 bool +) + +func init() { + if ln, err := net.Listen("tcp4", "127.0.0.1:0"); err == nil { + ln.Close() + supportsIPv4 = true + } + if ln, err := net.Listen("tcp6", "[::1]:0"); err == nil { + ln.Close() + supportsIPv6 = true } - ln.Close() - return true } +// SupportsIPv4 reports whether the platform supports IPv4 networking +// functionality. +func SupportsIPv4() bool { return supportsIPv4 } + // SupportsIPv6 reports whether the platform supports IPv6 networking // functionality. -func SupportsIPv6() bool { - if causesIPv6Crash() { - return false - } - ln, err := net.Listen("tcp6", "[::1]:0") - if err != nil { - return false - } - ln.Close() - return true -} +func SupportsIPv6() bool { return supportsIPv6 } // SupportsRawIPSocket reports whether the platform supports raw IP // sockets. @@ -50,3 +55,93 @@ func SupportsIPv6MulticastDeliveryOnLoopback() bool { func ProtocolNotSupported(err error) bool { return protocolNotSupported(err) } + +// TestableNetwork reports whether network is testable on the current +// platform configuration. +func TestableNetwork(network string) bool { + // This is based on logic from standard library's + // net/platform_test.go. + switch network { + case "unix", "unixgram": + switch runtime.GOOS { + case "android", "nacl", "plan9", "windows": + return false + } + if runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64") { + return false + } + case "unixpacket": + switch runtime.GOOS { + case "android", "darwin", "freebsd", "nacl", "plan9", "windows": + return false + } + } + return true +} + +// NewLocalListener returns a listener which listens to a loopback IP +// address or local file system path. +// Network must be "tcp", "tcp4", "tcp6", "unix" or "unixpacket". +func NewLocalListener(network string) (net.Listener, error) { + switch network { + case "tcp": + if supportsIPv4 { + if ln, err := net.Listen("tcp4", "127.0.0.1:0"); err == nil { + return ln, nil + } + } + if supportsIPv6 { + return net.Listen("tcp6", "[::1]:0") + } + case "tcp4": + if supportsIPv4 { + return net.Listen("tcp4", "127.0.0.1:0") + } + case "tcp6": + if supportsIPv6 { + return net.Listen("tcp6", "[::1]:0") + } + case "unix", "unixpacket": + return net.Listen(network, localPath()) + } + return nil, fmt.Errorf("%s is not supported", network) +} + +// NewLocalPacketListener returns a packet listener which listens to a +// loopback IP address or local file system path. +// Network must be "udp", "udp4", "udp6" or "unixgram". +func NewLocalPacketListener(network string) (net.PacketConn, error) { + switch network { + case "udp": + if supportsIPv4 { + if c, err := net.ListenPacket("udp4", "127.0.0.1:0"); err == nil { + return c, nil + } + } + if supportsIPv6 { + return net.ListenPacket("udp6", "[::1]:0") + } + case "udp4": + if supportsIPv4 { + return net.ListenPacket("udp4", "127.0.0.1:0") + } + case "udp6": + if supportsIPv6 { + return net.ListenPacket("udp6", "[::1]:0") + } + case "unixgram": + return net.ListenPacket(network, localPath()) + } + return nil, fmt.Errorf("%s is not supported", network) +} + +func localPath() string { + f, err := ioutil.TempFile("", "nettest") + if err != nil { + panic(err) + } + path := f.Name() + f.Close() + os.Remove(path) + return path +} diff --git a/vendor/golang.org/x/net/ipv4/doc.go b/vendor/golang.org/x/net/ipv4/doc.go index 7b25ea2ee..b4ce40fbc 100644 --- a/vendor/golang.org/x/net/ipv4/doc.go +++ b/vendor/golang.org/x/net/ipv4/doc.go @@ -23,8 +23,8 @@ // net.UDPConn and net.IPConn which are created as network connections // that use the IPv4 transport. When a single TCP connection carrying // a data flow of multiple packets needs to indicate the flow is -// important, ipv4.Conn is used to set the type-of-service field on -// the IPv4 header for each packet. +// important, Conn is used to set the type-of-service field on the +// IPv4 header for each packet. // // ln, err := net.Listen("tcp4", "0.0.0.0:1024") // if err != nil { @@ -96,8 +96,8 @@ // The application might set per packet control message transmissions // between the protocol stack within the kernel. When the application // needs a destination address on an incoming packet, -// SetControlMessage of ipv4.PacketConn is used to enable control -// message transmissions. +// SetControlMessage of PacketConn is used to enable control message +// transmissions. // // if err := p.SetControlMessage(ipv4.FlagDst, true); err != nil { // // error handling @@ -240,3 +240,5 @@ // In the fallback case, ExcludeSourceSpecificGroup and // 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. diff --git a/vendor/golang.org/x/net/ipv4/endpoint.go b/vendor/golang.org/x/net/ipv4/endpoint.go index dc7557b66..01c4e399b 100644 --- a/vendor/golang.org/x/net/ipv4/endpoint.go +++ b/vendor/golang.org/x/net/ipv4/endpoint.go @@ -12,6 +12,11 @@ import ( "golang.org/x/net/internal/netreflect" ) +// BUG(mikio): On Windows, the JoinSourceSpecificGroup, +// LeaveSourceSpecificGroup, ExcludeSourceSpecificGroup and +// IncludeSourceSpecificGroup methods of PacketConn and RawConn are +// not implemented. + // A Conn represents a network endpoint that uses the IPv4 transport. // It is used to control basic IP-level socket options such as TOS and // TTL. diff --git a/vendor/golang.org/x/net/ipv4/mocktransponder_test.go b/vendor/golang.org/x/net/ipv4/mocktransponder_test.go deleted file mode 100644 index e96c48af8..000000000 --- a/vendor/golang.org/x/net/ipv4/mocktransponder_test.go +++ /dev/null @@ -1,21 +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. - -package ipv4_test - -import ( - "net" - "testing" -) - -func acceptor(t *testing.T, ln net.Listener, done chan<- bool) { - defer func() { done <- true }() - - c, err := ln.Accept() - if err != nil { - t.Error(err) - return - } - c.Close() -} diff --git a/vendor/golang.org/x/net/ipv4/packet.go b/vendor/golang.org/x/net/ipv4/packet.go index a4ff8159b..7f3bf4898 100644 --- a/vendor/golang.org/x/net/ipv4/packet.go +++ b/vendor/golang.org/x/net/ipv4/packet.go @@ -9,6 +9,9 @@ import ( "syscall" ) +// BUG(mikio): On Windows, the ReadFrom and WriteTo methods of RawConn +// are not implemented. + // A packetHandler represents the IPv4 datagram handler. type packetHandler struct { c *net.IPConn @@ -61,7 +64,7 @@ func slicePacket(b []byte) (h, p []byte, err error) { // // The IPv4 header h must contain appropriate fields that include: // -// Version = ipv4.Version +// Version = <must be specified> // Len = <must be specified> // TOS = <must be specified> // TotalLen = <must be specified> diff --git a/vendor/golang.org/x/net/ipv4/payload.go b/vendor/golang.org/x/net/ipv4/payload.go index 25ca8a5fb..be130e424 100644 --- a/vendor/golang.org/x/net/ipv4/payload.go +++ b/vendor/golang.org/x/net/ipv4/payload.go @@ -6,6 +6,9 @@ package ipv4 import "net" +// BUG(mikio): On Windows, the ControlMessage for ReadFrom and WriteTo +// methods of PacketConn is not implemented. + // A payloadHandler represents the IPv4 datagram payload handler. type payloadHandler struct { net.PacketConn diff --git a/vendor/golang.org/x/net/ipv4/sys_darwin.go b/vendor/golang.org/x/net/ipv4/sys_darwin.go index bc694141c..abfffca87 100644 --- a/vendor/golang.org/x/net/ipv4/sys_darwin.go +++ b/vendor/golang.org/x/net/ipv4/sys_darwin.go @@ -6,6 +6,8 @@ package ipv4 import ( "net" + "strconv" + "strings" "syscall" "unsafe" ) @@ -36,41 +38,40 @@ var ( func init() { // Seems like kern.osreldate is veiled on latest OS X. We use // kern.osrelease instead. - osver, err := syscall.Sysctl("kern.osrelease") + s, err := syscall.Sysctl("kern.osrelease") if err != nil { return } - var i int - for i = range osver { - if osver[i] == '.' { - break - } + 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 11.0.0). But it looks like - // those features require OS X 10.8 (Darwin 12.0.0) and above. + // 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 i > 2 || i == 2 && osver[0] >= '1' && osver[1] >= '2' { - ctlOpts[ctlPacketInfo].name = sysIP_PKTINFO - ctlOpts[ctlPacketInfo].length = sizeofInetPktinfo - ctlOpts[ctlPacketInfo].marshal = marshalPacketInfo - ctlOpts[ctlPacketInfo].parse = parsePacketInfo - sockOpts[ssoPacketInfo].name = sysIP_RECVPKTINFO - sockOpts[ssoPacketInfo].typ = ssoTypeInt - sockOpts[ssoMulticastInterface].typ = ssoTypeIPMreqn - sockOpts[ssoJoinGroup].name = sysMCAST_JOIN_GROUP - sockOpts[ssoJoinGroup].typ = ssoTypeGroupReq - sockOpts[ssoLeaveGroup].name = sysMCAST_LEAVE_GROUP - sockOpts[ssoLeaveGroup].typ = ssoTypeGroupReq - sockOpts[ssoJoinSourceGroup].name = sysMCAST_JOIN_SOURCE_GROUP - sockOpts[ssoJoinSourceGroup].typ = ssoTypeGroupSourceReq - sockOpts[ssoLeaveSourceGroup].name = sysMCAST_LEAVE_SOURCE_GROUP - sockOpts[ssoLeaveSourceGroup].typ = ssoTypeGroupSourceReq - sockOpts[ssoBlockSourceGroup].name = sysMCAST_BLOCK_SOURCE - sockOpts[ssoBlockSourceGroup].typ = ssoTypeGroupSourceReq - sockOpts[ssoUnblockSourceGroup].name = sysMCAST_UNBLOCK_SOURCE - sockOpts[ssoUnblockSourceGroup].typ = ssoTypeGroupSourceReq + 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].name = sysIP_RECVPKTINFO + sockOpts[ssoPacketInfo].typ = ssoTypeInt + sockOpts[ssoMulticastInterface].typ = ssoTypeIPMreqn + sockOpts[ssoJoinGroup].name = sysMCAST_JOIN_GROUP + sockOpts[ssoJoinGroup].typ = ssoTypeGroupReq + sockOpts[ssoLeaveGroup].name = sysMCAST_LEAVE_GROUP + sockOpts[ssoLeaveGroup].typ = ssoTypeGroupReq + sockOpts[ssoJoinSourceGroup].name = sysMCAST_JOIN_SOURCE_GROUP + sockOpts[ssoJoinSourceGroup].typ = ssoTypeGroupSourceReq + sockOpts[ssoLeaveSourceGroup].name = sysMCAST_LEAVE_SOURCE_GROUP + sockOpts[ssoLeaveSourceGroup].typ = ssoTypeGroupSourceReq + sockOpts[ssoBlockSourceGroup].name = sysMCAST_BLOCK_SOURCE + sockOpts[ssoBlockSourceGroup].typ = ssoTypeGroupSourceReq + sockOpts[ssoUnblockSourceGroup].name = sysMCAST_UNBLOCK_SOURCE + sockOpts[ssoUnblockSourceGroup].typ = ssoTypeGroupSourceReq } func (pi *inetPktinfo) setIfindex(i int) { diff --git a/vendor/golang.org/x/net/ipv4/sys_windows.go b/vendor/golang.org/x/net/ipv4/sys_windows.go index 3f4c5357b..fac00bda8 100644 --- a/vendor/golang.org/x/net/ipv4/sys_windows.go +++ b/vendor/golang.org/x/net/ipv4/sys_windows.go @@ -51,6 +51,7 @@ var ( ssoMulticastTTL: {sysIP_MULTICAST_TTL, ssoTypeInt}, ssoMulticastInterface: {sysIP_MULTICAST_IF, ssoTypeInterface}, ssoMulticastLoopback: {sysIP_MULTICAST_LOOP, ssoTypeInt}, + ssoHeaderPrepend: {sysIP_HDRINCL, ssoTypeInt}, ssoJoinGroup: {sysIP_ADD_MEMBERSHIP, ssoTypeIPMreq}, ssoLeaveGroup: {sysIP_DROP_MEMBERSHIP, ssoTypeIPMreq}, } diff --git a/vendor/golang.org/x/net/ipv4/unicastsockopt_test.go b/vendor/golang.org/x/net/ipv4/unicastsockopt_test.go index b047e51f9..db5213b91 100644 --- a/vendor/golang.org/x/net/ipv4/unicastsockopt_test.go +++ b/vendor/golang.org/x/net/ipv4/unicastsockopt_test.go @@ -16,7 +16,7 @@ import ( func TestConnUnicastSocketOptions(t *testing.T) { switch runtime.GOOS { - case "nacl", "plan9": + case "nacl", "plan9", "windows": t.Skipf("not supported on %s", runtime.GOOS) } ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback) @@ -30,8 +30,15 @@ func TestConnUnicastSocketOptions(t *testing.T) { } defer ln.Close() - done := make(chan bool) - go acceptor(t, ln, done) + errc := make(chan error, 1) + go func() { + c, err := ln.Accept() + if err != nil { + errc <- err + return + } + errc <- c.Close() + }() c, err := net.Dial("tcp4", ln.Addr().String()) if err != nil { @@ -41,7 +48,9 @@ func TestConnUnicastSocketOptions(t *testing.T) { testUnicastSocketOptions(t, ipv4.NewConn(c)) - <-done + if err := <-errc; err != nil { + t.Errorf("server: %v", err) + } } var packetConnUnicastSocketOptionTests = []struct { @@ -53,7 +62,7 @@ var packetConnUnicastSocketOptionTests = []struct { func TestPacketConnUnicastSocketOptions(t *testing.T) { switch runtime.GOOS { - case "nacl", "plan9": + case "nacl", "plan9", "windows": t.Skipf("not supported on %s", runtime.GOOS) } ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback) @@ -79,7 +88,7 @@ func TestPacketConnUnicastSocketOptions(t *testing.T) { func TestRawConnUnicastSocketOptions(t *testing.T) { switch runtime.GOOS { - case "nacl", "plan9": + case "nacl", "plan9", "windows": t.Skipf("not supported on %s", runtime.GOOS) } if m, ok := nettest.SupportsRawIPSocket(); !ok { diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_mips.go b/vendor/golang.org/x/net/ipv4/zsys_linux_mips.go new file mode 100644 index 000000000..4da672013 --- /dev/null +++ b/vendor/golang.org/x/net/ipv4/zsys_linux_mips.go @@ -0,0 +1,146 @@ +// Created by cgo -godefs - DO NOT EDIT +// cgo -godefs defs_linux.go + +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 + + sysSOL_SOCKET = 0x1 + sysSO_ATTACH_FILTER = 0x1a + + sizeofKernelSockaddrStorage = 0x80 + sizeofSockaddrInet = 0x10 + sizeofInetPktinfo = 0xc + sizeofSockExtendedErr = 0x10 + + sizeofIPMreq = 0x8 + sizeofIPMreqn = 0xc + sizeofIPMreqSource = 0xc + sizeofGroupReq = 0x84 + sizeofGroupSourceReq = 0x104 + + 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 + Group kernelSockaddrStorage +} + +type groupSourceReq struct { + Interface uint32 + Group kernelSockaddrStorage + Source kernelSockaddrStorage +} + +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_mipsle.go b/vendor/golang.org/x/net/ipv4/zsys_linux_mipsle.go new file mode 100644 index 000000000..4da672013 --- /dev/null +++ b/vendor/golang.org/x/net/ipv4/zsys_linux_mipsle.go @@ -0,0 +1,146 @@ +// Created by cgo -godefs - DO NOT EDIT +// cgo -godefs defs_linux.go + +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 + + sysSOL_SOCKET = 0x1 + sysSO_ATTACH_FILTER = 0x1a + + sizeofKernelSockaddrStorage = 0x80 + sizeofSockaddrInet = 0x10 + sizeofInetPktinfo = 0xc + sizeofSockExtendedErr = 0x10 + + sizeofIPMreq = 0x8 + sizeofIPMreqn = 0xc + sizeofIPMreqSource = 0xc + sizeofGroupReq = 0x84 + sizeofGroupSourceReq = 0x104 + + 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 + Group kernelSockaddrStorage +} + +type groupSourceReq struct { + Interface uint32 + Group kernelSockaddrStorage + Source kernelSockaddrStorage +} + +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/ipv6/dgramopt_posix.go b/vendor/golang.org/x/net/ipv6/dgramopt_posix.go index 46f7f2ffb..571430848 100644 --- a/vendor/golang.org/x/net/ipv6/dgramopt_posix.go +++ b/vendor/golang.org/x/net/ipv6/dgramopt_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 windows solaris +// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows package ipv6 diff --git a/vendor/golang.org/x/net/ipv6/doc.go b/vendor/golang.org/x/net/ipv6/doc.go index 78a779c4e..88383e915 100644 --- a/vendor/golang.org/x/net/ipv6/doc.go +++ b/vendor/golang.org/x/net/ipv6/doc.go @@ -24,8 +24,8 @@ // net.UDPConn and net.IPConn which are created as network connections // that use the IPv6 transport. When a single TCP connection carrying // a data flow of multiple packets needs to indicate the flow is -// important, ipv6.Conn is used to set the traffic class field on the -// IPv6 header for each packet. +// important, Conn is used to set the traffic class field on the IPv6 +// header for each packet. // // ln, err := net.Listen("tcp6", "[::]:1024") // if err != nil { @@ -97,8 +97,8 @@ // The application might set per packet control message transmissions // between the protocol stack within the kernel. When the application // needs a destination address on an incoming packet, -// SetControlMessage of ipv6.PacketConn is used to enable control -// message transmissions. +// SetControlMessage of PacketConn is used to enable control message +// transmissions. // // if err := p.SetControlMessage(ipv6.FlagDst, true); err != nil { // // error handling @@ -239,3 +239,5 @@ // In the fallback case, ExcludeSourceSpecificGroup and // 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. diff --git a/vendor/golang.org/x/net/ipv6/endpoint.go b/vendor/golang.org/x/net/ipv6/endpoint.go index b988782a9..f6a68ab41 100644 --- a/vendor/golang.org/x/net/ipv6/endpoint.go +++ b/vendor/golang.org/x/net/ipv6/endpoint.go @@ -12,6 +12,11 @@ import ( "golang.org/x/net/internal/netreflect" ) +// BUG(mikio): On Windows, the JoinSourceSpecificGroup, +// LeaveSourceSpecificGroup, ExcludeSourceSpecificGroup and +// IncludeSourceSpecificGroup methods of PacketConn are not +// implemented. + // A Conn represents a network endpoint that uses IPv6 transport. // It allows to set basic IP-level socket options such as traffic // class and hop limit. diff --git a/vendor/golang.org/x/net/ipv6/icmp.go b/vendor/golang.org/x/net/ipv6/icmp.go index df9e4fbe3..ff21d1071 100644 --- a/vendor/golang.org/x/net/ipv6/icmp.go +++ b/vendor/golang.org/x/net/ipv6/icmp.go @@ -6,6 +6,9 @@ package ipv6 import "golang.org/x/net/internal/iana" +// BUG(mikio): On Windows, methods related to ICMPFilter are not +// implemented. + // An ICMPType represents a type of ICMP message. type ICMPType int diff --git a/vendor/golang.org/x/net/ipv6/payload.go b/vendor/golang.org/x/net/ipv6/payload.go index 682ff22f2..d9f822510 100644 --- a/vendor/golang.org/x/net/ipv6/payload.go +++ b/vendor/golang.org/x/net/ipv6/payload.go @@ -6,6 +6,9 @@ package ipv6 import "net" +// BUG(mikio): On Windows, the ControlMessage for ReadFrom and WriteTo +// methods of PacketConn is not implemented. + // A payloadHandler represents the IPv6 datagram payload handler. type payloadHandler struct { net.PacketConn diff --git a/vendor/golang.org/x/net/ipv6/unicastsockopt_test.go b/vendor/golang.org/x/net/ipv6/unicastsockopt_test.go index 1c52b3d30..e175dccf5 100644 --- a/vendor/golang.org/x/net/ipv6/unicastsockopt_test.go +++ b/vendor/golang.org/x/net/ipv6/unicastsockopt_test.go @@ -29,8 +29,15 @@ func TestConnUnicastSocketOptions(t *testing.T) { } defer ln.Close() - done := make(chan bool) - go acceptor(t, ln, done) + errc := make(chan error, 1) + go func() { + c, err := ln.Accept() + if err != nil { + errc <- err + return + } + errc <- c.Close() + }() c, err := net.Dial("tcp6", ln.Addr().String()) if err != nil { @@ -40,7 +47,9 @@ func TestConnUnicastSocketOptions(t *testing.T) { testUnicastSocketOptions(t, ipv6.NewConn(c)) - <-done + if err := <-errc; err != nil { + t.Errorf("server: %v", err) + } } var packetConnUnicastSocketOptionTests = []struct { diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_mips.go b/vendor/golang.org/x/net/ipv6/zsys_linux_mips.go new file mode 100644 index 000000000..f5a410945 --- /dev/null +++ b/vendor/golang.org/x/net/ipv6/zsys_linux_mips.go @@ -0,0 +1,168 @@ +// Created by cgo -godefs - DO NOT EDIT +// cgo -godefs defs_linux.go + +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 + + sysSOL_SOCKET = 0x1 + sysSO_ATTACH_FILTER = 0x1a + + sizeofKernelSockaddrStorage = 0x80 + sizeofSockaddrInet6 = 0x1c + sizeofInet6Pktinfo = 0x14 + sizeofIPv6Mtuinfo = 0x20 + sizeofIPv6FlowlabelReq = 0x20 + + sizeofIPv6Mreq = 0x14 + sizeofGroupReq = 0x84 + sizeofGroupSourceReq = 0x104 + + 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 + Group kernelSockaddrStorage +} + +type groupSourceReq struct { + Interface uint32 + Group kernelSockaddrStorage + Source kernelSockaddrStorage +} + +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_mipsle.go b/vendor/golang.org/x/net/ipv6/zsys_linux_mipsle.go new file mode 100644 index 000000000..f5a410945 --- /dev/null +++ b/vendor/golang.org/x/net/ipv6/zsys_linux_mipsle.go @@ -0,0 +1,168 @@ +// Created by cgo -godefs - DO NOT EDIT +// cgo -godefs defs_linux.go + +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 + + sysSOL_SOCKET = 0x1 + sysSO_ATTACH_FILTER = 0x1a + + sizeofKernelSockaddrStorage = 0x80 + sizeofSockaddrInet6 = 0x1c + sizeofInet6Pktinfo = 0x14 + sizeofIPv6Mtuinfo = 0x20 + sizeofIPv6FlowlabelReq = 0x20 + + sizeofIPv6Mreq = 0x14 + sizeofGroupReq = 0x84 + sizeofGroupSourceReq = 0x104 + + 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 + Group kernelSockaddrStorage +} + +type groupSourceReq struct { + Interface uint32 + Group kernelSockaddrStorage + Source kernelSockaddrStorage +} + +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/nettest/conntest.go b/vendor/golang.org/x/net/nettest/conntest.go new file mode 100644 index 000000000..c246bbe39 --- /dev/null +++ b/vendor/golang.org/x/net/nettest/conntest.go @@ -0,0 +1,451 @@ +// Copyright 2016 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 nettest provides utilities for network testing. +package nettest + +import ( + "bytes" + "encoding/binary" + "io" + "io/ioutil" + "math/rand" + "net" + "sync" + "testing" + "time" +) + +var ( + aLongTimeAgo = time.Unix(233431200, 0) + neverTimeout = time.Time{} +) + +// MakePipe creates a connection between two endpoints and returns the pair +// as c1 and c2, such that anything written to c1 is read by c2 and vice-versa. +// The stop function closes all resources, including c1, c2, and the underlying +// net.Listener (if there is one), and should not be nil. +type MakePipe func() (c1, c2 net.Conn, stop func(), err error) + +// TestConn tests that a net.Conn implementation properly satisfies the interface. +// The tests should not produce any false positives, but may experience +// false negatives. Thus, some issues may only be detected when the test is +// run multiple times. For maximal effectiveness, run the tests under the +// race detector. +func TestConn(t *testing.T, mp MakePipe) { + testConn(t, mp) +} + +type connTester func(t *testing.T, c1, c2 net.Conn) + +func timeoutWrapper(t *testing.T, mp MakePipe, f connTester) { + c1, c2, stop, err := mp() + if err != nil { + t.Fatalf("unable to make pipe: %v", err) + } + var once sync.Once + defer once.Do(func() { stop() }) + timer := time.AfterFunc(time.Minute, func() { + once.Do(func() { + t.Error("test timed out; terminating pipe") + stop() + }) + }) + defer timer.Stop() + f(t, c1, c2) +} + +// testBasicIO tests that the data sent on c1 is properly received on c2. +func testBasicIO(t *testing.T, c1, c2 net.Conn) { + want := make([]byte, 1<<20) + rand.New(rand.NewSource(0)).Read(want) + + dataCh := make(chan []byte) + go func() { + rd := bytes.NewReader(want) + if err := chunkedCopy(c1, rd); err != nil { + t.Errorf("unexpected c1.Write error: %v", err) + } + if err := c1.Close(); err != nil { + t.Errorf("unexpected c1.Close error: %v", err) + } + }() + + go func() { + wr := new(bytes.Buffer) + if err := chunkedCopy(wr, c2); err != nil { + t.Errorf("unexpected c2.Read error: %v", err) + } + if err := c2.Close(); err != nil { + t.Errorf("unexpected c2.Close error: %v", err) + } + dataCh <- wr.Bytes() + }() + + if got := <-dataCh; !bytes.Equal(got, want) { + t.Errorf("transmitted data differs") + } +} + +// testPingPong tests that the two endpoints can synchronously send data to +// each other in a typical request-response pattern. +func testPingPong(t *testing.T, c1, c2 net.Conn) { + var wg sync.WaitGroup + defer wg.Wait() + + pingPonger := func(c net.Conn) { + defer wg.Done() + buf := make([]byte, 8) + var prev uint64 + for { + if _, err := io.ReadFull(c, buf); err != nil { + if err == io.EOF { + break + } + t.Errorf("unexpected Read error: %v", err) + } + + v := binary.LittleEndian.Uint64(buf) + binary.LittleEndian.PutUint64(buf, v+1) + if prev != 0 && prev+2 != v { + t.Errorf("mismatching value: got %d, want %d", v, prev+2) + } + prev = v + if v == 1000 { + break + } + + if _, err := c.Write(buf); err != nil { + t.Errorf("unexpected Write error: %v", err) + break + } + } + if err := c.Close(); err != nil { + t.Errorf("unexpected Close error: %v", err) + } + } + + wg.Add(2) + go pingPonger(c1) + go pingPonger(c2) + + // Start off the chain reaction. + if _, err := c1.Write(make([]byte, 8)); err != nil { + t.Errorf("unexpected c1.Write error: %v", err) + } +} + +// testRacyRead tests that it is safe to mutate the input Read buffer +// immediately after cancelation has occurred. +func testRacyRead(t *testing.T, c1, c2 net.Conn) { + go chunkedCopy(c2, rand.New(rand.NewSource(0))) + + var wg sync.WaitGroup + defer wg.Wait() + + c1.SetReadDeadline(time.Now().Add(time.Millisecond)) + for i := 0; i < 10; i++ { + wg.Add(1) + go func() { + defer wg.Done() + + b1 := make([]byte, 1024) + b2 := make([]byte, 1024) + for j := 0; j < 100; j++ { + _, err := c1.Read(b1) + copy(b1, b2) // Mutate b1 to trigger potential race + if err != nil { + checkForTimeoutError(t, err) + c1.SetReadDeadline(time.Now().Add(time.Millisecond)) + } + } + }() + } +} + +// testRacyWrite tests that it is safe to mutate the input Write buffer +// immediately after cancelation has occurred. +func testRacyWrite(t *testing.T, c1, c2 net.Conn) { + go chunkedCopy(ioutil.Discard, c2) + + var wg sync.WaitGroup + defer wg.Wait() + + c1.SetWriteDeadline(time.Now().Add(time.Millisecond)) + for i := 0; i < 10; i++ { + wg.Add(1) + go func() { + defer wg.Done() + + b1 := make([]byte, 1024) + b2 := make([]byte, 1024) + for j := 0; j < 100; j++ { + _, err := c1.Write(b1) + copy(b1, b2) // Mutate b1 to trigger potential race + if err != nil { + checkForTimeoutError(t, err) + c1.SetWriteDeadline(time.Now().Add(time.Millisecond)) + } + } + }() + } +} + +// testReadTimeout tests that Read timeouts do not affect Write. +func testReadTimeout(t *testing.T, c1, c2 net.Conn) { + go chunkedCopy(ioutil.Discard, c2) + + c1.SetReadDeadline(aLongTimeAgo) + _, err := c1.Read(make([]byte, 1024)) + checkForTimeoutError(t, err) + if _, err := c1.Write(make([]byte, 1024)); err != nil { + t.Errorf("unexpected Write error: %v", err) + } +} + +// testWriteTimeout tests that Write timeouts do not affect Read. +func testWriteTimeout(t *testing.T, c1, c2 net.Conn) { + go chunkedCopy(c2, rand.New(rand.NewSource(0))) + + c1.SetWriteDeadline(aLongTimeAgo) + _, err := c1.Write(make([]byte, 1024)) + checkForTimeoutError(t, err) + if _, err := c1.Read(make([]byte, 1024)); err != nil { + t.Errorf("unexpected Read error: %v", err) + } +} + +// testPastTimeout tests that a deadline set in the past immediately times out +// Read and Write requests. +func testPastTimeout(t *testing.T, c1, c2 net.Conn) { + go chunkedCopy(c2, c2) + + testRoundtrip(t, c1) + + c1.SetDeadline(aLongTimeAgo) + n, err := c1.Write(make([]byte, 1024)) + if n != 0 { + t.Errorf("unexpected Write count: got %d, want 0", n) + } + checkForTimeoutError(t, err) + n, err = c1.Read(make([]byte, 1024)) + if n != 0 { + t.Errorf("unexpected Read count: got %d, want 0", n) + } + checkForTimeoutError(t, err) + + testRoundtrip(t, c1) +} + +// testPresentTimeout tests that a deadline set while there are pending +// Read and Write operations immediately times out those operations. +func testPresentTimeout(t *testing.T, c1, c2 net.Conn) { + var wg sync.WaitGroup + defer wg.Wait() + wg.Add(3) + + deadlineSet := make(chan bool, 1) + go func() { + defer wg.Done() + time.Sleep(100 * time.Millisecond) + deadlineSet <- true + c1.SetReadDeadline(aLongTimeAgo) + c1.SetWriteDeadline(aLongTimeAgo) + }() + go func() { + defer wg.Done() + n, err := c1.Read(make([]byte, 1024)) + if n != 0 { + t.Errorf("unexpected Read count: got %d, want 0", n) + } + checkForTimeoutError(t, err) + if len(deadlineSet) == 0 { + t.Error("Read timed out before deadline is set") + } + }() + go func() { + defer wg.Done() + var err error + for err == nil { + _, err = c1.Write(make([]byte, 1024)) + } + checkForTimeoutError(t, err) + if len(deadlineSet) == 0 { + t.Error("Write timed out before deadline is set") + } + }() +} + +// testFutureTimeout tests that a future deadline will eventually time out +// Read and Write operations. +func testFutureTimeout(t *testing.T, c1, c2 net.Conn) { + var wg sync.WaitGroup + wg.Add(2) + + c1.SetDeadline(time.Now().Add(100 * time.Millisecond)) + go func() { + defer wg.Done() + _, err := c1.Read(make([]byte, 1024)) + checkForTimeoutError(t, err) + }() + go func() { + defer wg.Done() + var err error + for err == nil { + _, err = c1.Write(make([]byte, 1024)) + } + checkForTimeoutError(t, err) + }() + wg.Wait() + + go chunkedCopy(c2, c2) + resyncConn(t, c1) + testRoundtrip(t, c1) +} + +// testCloseTimeout tests that calling Close immediately times out pending +// Read and Write operations. +func testCloseTimeout(t *testing.T, c1, c2 net.Conn) { + go chunkedCopy(c2, c2) + + var wg sync.WaitGroup + defer wg.Wait() + wg.Add(3) + + // Test for cancelation upon connection closure. + c1.SetDeadline(neverTimeout) + go func() { + defer wg.Done() + time.Sleep(100 * time.Millisecond) + c1.Close() + }() + go func() { + defer wg.Done() + var err error + buf := make([]byte, 1024) + for err == nil { + _, err = c1.Read(buf) + } + }() + go func() { + defer wg.Done() + var err error + buf := make([]byte, 1024) + for err == nil { + _, err = c1.Write(buf) + } + }() +} + +// testConcurrentMethods tests that the methods of net.Conn can safely +// be called concurrently. +func testConcurrentMethods(t *testing.T, c1, c2 net.Conn) { + go chunkedCopy(c2, c2) + + // The results of the calls may be nonsensical, but this should + // not trigger a race detector warning. + var wg sync.WaitGroup + for i := 0; i < 100; i++ { + wg.Add(7) + go func() { + defer wg.Done() + c1.Read(make([]byte, 1024)) + }() + go func() { + defer wg.Done() + c1.Write(make([]byte, 1024)) + }() + go func() { + defer wg.Done() + c1.SetDeadline(time.Now().Add(10 * time.Millisecond)) + }() + go func() { + defer wg.Done() + c1.SetReadDeadline(aLongTimeAgo) + }() + go func() { + defer wg.Done() + c1.SetWriteDeadline(aLongTimeAgo) + }() + go func() { + defer wg.Done() + c1.LocalAddr() + }() + go func() { + defer wg.Done() + c1.RemoteAddr() + }() + } + wg.Wait() // At worst, the deadline is set 10ms into the future + + resyncConn(t, c1) + testRoundtrip(t, c1) +} + +// checkForTimeoutError checks that the error satisfies the Error interface +// and that Timeout returns true. +func checkForTimeoutError(t *testing.T, err error) { + if nerr, ok := err.(net.Error); ok { + if !nerr.Timeout() { + t.Errorf("err.Timeout() = false, want true") + } + } else { + t.Errorf("got %T, want net.Error", err) + } +} + +// testRoundtrip writes something into c and reads it back. +// It assumes that everything written into c is echoed back to itself. +func testRoundtrip(t *testing.T, c net.Conn) { + if err := c.SetDeadline(neverTimeout); err != nil { + t.Errorf("roundtrip SetDeadline error: %v", err) + } + + const s = "Hello, world!" + buf := []byte(s) + if _, err := c.Write(buf); err != nil { + t.Errorf("roundtrip Write error: %v", err) + } + if _, err := io.ReadFull(c, buf); err != nil { + t.Errorf("roundtrip Read error: %v", err) + } + if string(buf) != s { + t.Errorf("roundtrip data mismatch: got %q, want %q", buf, s) + } +} + +// resyncConn resynchronizes the connection into a sane state. +// It assumes that everything written into c is echoed back to itself. +// It assumes that 0xff is not currently on the wire or in the read buffer. +func resyncConn(t *testing.T, c net.Conn) { + c.SetDeadline(neverTimeout) + errCh := make(chan error) + go func() { + _, err := c.Write([]byte{0xff}) + errCh <- err + }() + buf := make([]byte, 1024) + for { + n, err := c.Read(buf) + if n > 0 && bytes.IndexByte(buf[:n], 0xff) == n-1 { + break + } + if err != nil { + t.Errorf("unexpected Read error: %v", err) + } + } + if err := <-errCh; err != nil { + t.Errorf("unexpected Write error: %v", err) + } +} + +// chunkedCopy copies from r to w in fixed-width chunks to avoid +// causing a Write that exceeds the maximum packet size for packet-based +// connections like "unixpacket". +// We assume that the maximum packet size is at least 1024. +func chunkedCopy(w io.Writer, r io.Reader) error { + b := make([]byte, 1024) + _, err := io.CopyBuffer(struct{ io.Writer }{w}, struct{ io.Reader }{r}, b) + return err +} diff --git a/vendor/golang.org/x/net/nettest/conntest_go16.go b/vendor/golang.org/x/net/nettest/conntest_go16.go new file mode 100644 index 000000000..4cbf48e35 --- /dev/null +++ b/vendor/golang.org/x/net/nettest/conntest_go16.go @@ -0,0 +1,24 @@ +// Copyright 2016 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 !go1.7 + +package nettest + +import "testing" + +func testConn(t *testing.T, mp MakePipe) { + // Avoid using subtests on Go 1.6 and below. + timeoutWrapper(t, mp, testBasicIO) + timeoutWrapper(t, mp, testPingPong) + timeoutWrapper(t, mp, testRacyRead) + timeoutWrapper(t, mp, testRacyWrite) + timeoutWrapper(t, mp, testReadTimeout) + timeoutWrapper(t, mp, testWriteTimeout) + timeoutWrapper(t, mp, testPastTimeout) + timeoutWrapper(t, mp, testPresentTimeout) + timeoutWrapper(t, mp, testFutureTimeout) + timeoutWrapper(t, mp, testCloseTimeout) + timeoutWrapper(t, mp, testConcurrentMethods) +} diff --git a/vendor/golang.org/x/net/nettest/conntest_go17.go b/vendor/golang.org/x/net/nettest/conntest_go17.go new file mode 100644 index 000000000..fa039f03f --- /dev/null +++ b/vendor/golang.org/x/net/nettest/conntest_go17.go @@ -0,0 +1,24 @@ +// Copyright 2016 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 go1.7 + +package nettest + +import "testing" + +func testConn(t *testing.T, mp MakePipe) { + // Use subtests on Go 1.7 and above since it is better organized. + t.Run("BasicIO", func(t *testing.T) { timeoutWrapper(t, mp, testBasicIO) }) + t.Run("PingPong", func(t *testing.T) { timeoutWrapper(t, mp, testPingPong) }) + t.Run("RacyRead", func(t *testing.T) { timeoutWrapper(t, mp, testRacyRead) }) + t.Run("RacyWrite", func(t *testing.T) { timeoutWrapper(t, mp, testRacyWrite) }) + t.Run("ReadTimeout", func(t *testing.T) { timeoutWrapper(t, mp, testReadTimeout) }) + t.Run("WriteTimeout", func(t *testing.T) { timeoutWrapper(t, mp, testWriteTimeout) }) + t.Run("PastTimeout", func(t *testing.T) { timeoutWrapper(t, mp, testPastTimeout) }) + t.Run("PresentTimeout", func(t *testing.T) { timeoutWrapper(t, mp, testPresentTimeout) }) + t.Run("FutureTimeout", func(t *testing.T) { timeoutWrapper(t, mp, testFutureTimeout) }) + t.Run("CloseTimeout", func(t *testing.T) { timeoutWrapper(t, mp, testCloseTimeout) }) + t.Run("ConcurrentMethods", func(t *testing.T) { timeoutWrapper(t, mp, testConcurrentMethods) }) +} diff --git a/vendor/golang.org/x/net/nettest/conntest_test.go b/vendor/golang.org/x/net/nettest/conntest_test.go new file mode 100644 index 000000000..9f9453fb5 --- /dev/null +++ b/vendor/golang.org/x/net/nettest/conntest_test.go @@ -0,0 +1,76 @@ +// Copyright 2016 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 go1.8 + +package nettest + +import ( + "net" + "os" + "runtime" + "testing" + + "golang.org/x/net/internal/nettest" +) + +func TestTestConn(t *testing.T) { + tests := []struct{ name, network string }{ + {"TCP", "tcp"}, + {"UnixPipe", "unix"}, + {"UnixPacketPipe", "unixpacket"}, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + if !nettest.TestableNetwork(tt.network) { + t.Skipf("not supported on %s", runtime.GOOS) + } + + mp := func() (c1, c2 net.Conn, stop func(), err error) { + ln, err := nettest.NewLocalListener(tt.network) + if err != nil { + return nil, nil, nil, err + } + + // Start a connection between two endpoints. + var err1, err2 error + done := make(chan bool) + go func() { + c2, err2 = ln.Accept() + close(done) + }() + c1, err1 = net.Dial(ln.Addr().Network(), ln.Addr().String()) + <-done + + stop = func() { + if err1 == nil { + c1.Close() + } + if err2 == nil { + c2.Close() + } + ln.Close() + switch tt.network { + case "unix", "unixpacket": + os.Remove(ln.Addr().String()) + } + } + + switch { + case err1 != nil: + stop() + return nil, nil, nil, err1 + case err2 != nil: + stop() + return nil, nil, nil, err2 + default: + return c1, c2, stop, nil + } + } + + TestConn(t, mp) + }) + } +} diff --git a/vendor/golang.org/x/net/trace/events.go b/vendor/golang.org/x/net/trace/events.go index e66c7e328..d8daec1a7 100644 --- a/vendor/golang.org/x/net/trace/events.go +++ b/vendor/golang.org/x/net/trace/events.go @@ -21,11 +21,6 @@ import ( "time" ) -var eventsTmpl = template.Must(template.New("events").Funcs(template.FuncMap{ - "elapsed": elapsed, - "trimSpace": strings.TrimSpace, -}).Parse(eventsHTML)) - const maxEventsPerLog = 100 type bucket struct { @@ -101,7 +96,7 @@ func RenderEvents(w http.ResponseWriter, req *http.Request, sensitive bool) { famMu.RLock() defer famMu.RUnlock() - if err := eventsTmpl.Execute(w, data); err != nil { + if err := eventsTmpl().Execute(w, data); err != nil { log.Printf("net/trace: Failed executing template: %v", err) } } @@ -421,6 +416,19 @@ func freeEventLog(el *eventLog) { } } +var eventsTmplCache *template.Template +var eventsTmplOnce sync.Once + +func eventsTmpl() *template.Template { + eventsTmplOnce.Do(func() { + eventsTmplCache = template.Must(template.New("events").Funcs(template.FuncMap{ + "elapsed": elapsed, + "trimSpace": strings.TrimSpace, + }).Parse(eventsHTML)) + }) + return eventsTmplCache +} + const eventsHTML = ` <html> <head> diff --git a/vendor/golang.org/x/net/trace/histogram.go b/vendor/golang.org/x/net/trace/histogram.go index bb42aa532..9bf4286c7 100644 --- a/vendor/golang.org/x/net/trace/histogram.go +++ b/vendor/golang.org/x/net/trace/histogram.go @@ -12,6 +12,7 @@ import ( "html/template" "log" "math" + "sync" "golang.org/x/net/internal/timeseries" ) @@ -320,15 +321,20 @@ func (h *histogram) newData() *data { func (h *histogram) html() template.HTML { buf := new(bytes.Buffer) - if err := distTmpl.Execute(buf, h.newData()); err != nil { + if err := distTmpl().Execute(buf, h.newData()); err != nil { buf.Reset() log.Printf("net/trace: couldn't execute template: %v", err) } return template.HTML(buf.String()) } -// Input: data -var distTmpl = template.Must(template.New("distTmpl").Parse(` +var distTmplCache *template.Template +var distTmplOnce sync.Once + +func distTmpl() *template.Template { + distTmplOnce.Do(func() { + // Input: data + distTmplCache = template.Must(template.New("distTmpl").Parse(` <table> <tr> <td style="padding:0.25em">Count: {{.Count}}</td> @@ -354,3 +360,6 @@ var distTmpl = template.Must(template.New("distTmpl").Parse(` {{end}} </table> `)) + }) + return distTmplCache +} diff --git a/vendor/golang.org/x/net/trace/trace.go b/vendor/golang.org/x/net/trace/trace.go index ecd766eb7..64f56a373 100644 --- a/vendor/golang.org/x/net/trace/trace.go +++ b/vendor/golang.org/x/net/trace/trace.go @@ -238,7 +238,7 @@ func Render(w io.Writer, req *http.Request, sensitive bool) { completedMu.RLock() defer completedMu.RUnlock() - if err := pageTmpl.ExecuteTemplate(w, "Page", data); err != nil { + if err := pageTmpl().ExecuteTemplate(w, "Page", data); err != nil { log.Printf("net/trace: Failed executing template: %v", err) } } @@ -902,10 +902,18 @@ func elapsed(d time.Duration) string { return string(b) } -var pageTmpl = template.Must(template.New("Page").Funcs(template.FuncMap{ - "elapsed": elapsed, - "add": func(a, b int) int { return a + b }, -}).Parse(pageHTML)) +var pageTmplCache *template.Template +var pageTmplOnce sync.Once + +func pageTmpl() *template.Template { + pageTmplOnce.Do(func() { + pageTmplCache = template.Must(template.New("Page").Funcs(template.FuncMap{ + "elapsed": elapsed, + "add": func(a, b int) int { return a + b }, + }).Parse(pageHTML)) + }) + return pageTmplCache +} const pageHTML = ` {{template "Prolog" .}} diff --git a/vendor/golang.org/x/net/trace/trace_test.go b/vendor/golang.org/x/net/trace/trace_test.go index c6aad86c2..bfd9dfe94 100644 --- a/vendor/golang.org/x/net/trace/trace_test.go +++ b/vendor/golang.org/x/net/trace/trace_test.go @@ -70,6 +70,20 @@ func TestAuthRequest(t *testing.T) { } } +// TestParseTemplate checks that all templates used by this package are valid +// as they are parsed on first usage +func TestParseTemplate(t *testing.T) { + if tmpl := distTmpl(); tmpl == nil { + t.Error("invalid template returned from distTmpl()") + } + if tmpl := pageTmpl(); tmpl == nil { + t.Error("invalid template returned from pageTmpl()") + } + if tmpl := eventsTmpl(); tmpl == nil { + t.Error("invalid template returned from eventsTmpl()") + } +} + func benchmarkTrace(b *testing.B, maxEvents, numEvents int) { numSpans := (b.N + numEvents + 1) / numEvents diff --git a/vendor/golang.org/x/net/websocket/websocket.go b/vendor/golang.org/x/net/websocket/websocket.go index a7731d9c9..e242c89a7 100644 --- a/vendor/golang.org/x/net/websocket/websocket.go +++ b/vendor/golang.org/x/net/websocket/websocket.go @@ -4,6 +4,12 @@ // Package websocket implements a client and server for the WebSocket protocol // as specified in RFC 6455. +// +// This package currently lacks some features found in an alternative +// and more actively maintained WebSocket package: +// +// https://godoc.org/github.com/gorilla/websocket +// package websocket // import "golang.org/x/net/websocket" import ( |