upgrade golang crypto from 0.0.0-20200930160638-afb6bcd081ae => v0.0.0-20210513164829-c07d793c2f9a (#10390)
This commit is contained in:
parent
168fbbbed1
commit
c3eacac764
2
go.mod
2
go.mod
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@ -81,7 +81,7 @@ require (
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github.com/stretchr/testify v1.6.1
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go.opencensus.io v0.22.0 // indirect
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go.uber.org/goleak v1.1.10
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golang.org/x/crypto v0.0.0-20200930160638-afb6bcd081ae
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golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a
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golang.org/x/net v0.0.0-20210410081132-afb366fc7cd1
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golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
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golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
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5
go.sum
5
go.sum
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@ -534,8 +534,8 @@ golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3
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golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/crypto v0.0.0-20200220183623-bac4c82f6975/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/crypto v0.0.0-20200930160638-afb6bcd081ae h1:duLSQW+DZ5MsXKX7kc4rXlq6/mmxz4G6ewJuBPlhRe0=
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golang.org/x/crypto v0.0.0-20200930160638-afb6bcd081ae/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a h1:kr2P4QFmQr29mSLA43kwrOcgcReGTfbE9N577tCTuBc=
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golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
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golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
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golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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@ -618,6 +618,7 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
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golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44 h1:Bli41pIlzTzf3KEY06n+xnzK/BESIg2ze4Pgfh/aI8c=
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golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
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golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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golang.org/x/text v0.0.0-20160726164857-2910a502d2bf/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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@ -2,7 +2,8 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build go1.7,amd64,!gccgo,!appengine
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//go:build go1.7 && amd64 && gc && !purego
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// +build go1.7,amd64,gc,!purego
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package blake2b
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@ -2,7 +2,8 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build go1.7,amd64,!gccgo,!appengine
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//go:build go1.7 && amd64 && gc && !purego
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// +build go1.7,amd64,gc,!purego
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#include "textflag.h"
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@ -282,14 +283,12 @@ TEXT ·hashBlocksAVX2(SB), 4, $320-48 // frame size = 288 + 32 byte alignment
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MOVQ blocks_len+32(FP), DI
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MOVQ SP, DX
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MOVQ SP, R9
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ADDQ $31, R9
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ANDQ $~31, R9
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MOVQ R9, SP
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ADDQ $31, DX
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ANDQ $~31, DX
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MOVQ CX, 16(SP)
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MOVQ CX, 16(DX)
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XORQ CX, CX
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MOVQ CX, 24(SP)
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MOVQ CX, 24(DX)
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VMOVDQU ·AVX2_c40<>(SB), Y4
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VMOVDQU ·AVX2_c48<>(SB), Y5
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@ -301,33 +300,33 @@ TEXT ·hashBlocksAVX2(SB), 4, $320-48 // frame size = 288 + 32 byte alignment
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MOVQ 0(BX), R8
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MOVQ 8(BX), R9
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MOVQ R9, 8(SP)
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MOVQ R9, 8(DX)
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loop:
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ADDQ $128, R8
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MOVQ R8, 0(SP)
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MOVQ R8, 0(DX)
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CMPQ R8, $128
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JGE noinc
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INCQ R9
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MOVQ R9, 8(SP)
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MOVQ R9, 8(DX)
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noinc:
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VMOVDQA Y8, Y0
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VMOVDQA Y9, Y1
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VMOVDQA Y6, Y2
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VPXOR 0(SP), Y7, Y3
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VPXOR 0(DX), Y7, Y3
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LOAD_MSG_AVX2_0_2_4_6_1_3_5_7_8_10_12_14_9_11_13_15()
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VMOVDQA Y12, 32(SP)
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VMOVDQA Y13, 64(SP)
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VMOVDQA Y14, 96(SP)
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VMOVDQA Y15, 128(SP)
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VMOVDQA Y12, 32(DX)
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VMOVDQA Y13, 64(DX)
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VMOVDQA Y14, 96(DX)
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VMOVDQA Y15, 128(DX)
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ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
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LOAD_MSG_AVX2_14_4_9_13_10_8_15_6_1_0_11_5_12_2_7_3()
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VMOVDQA Y12, 160(SP)
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VMOVDQA Y13, 192(SP)
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VMOVDQA Y14, 224(SP)
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VMOVDQA Y15, 256(SP)
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VMOVDQA Y12, 160(DX)
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VMOVDQA Y13, 192(DX)
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VMOVDQA Y14, 224(DX)
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VMOVDQA Y15, 256(DX)
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ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
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LOAD_MSG_AVX2_11_12_5_15_8_0_2_13_10_3_7_9_14_6_1_4()
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@ -347,8 +346,8 @@ noinc:
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LOAD_MSG_AVX2_10_8_7_1_2_4_6_5_15_9_3_13_11_14_12_0()
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ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
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ROUND_AVX2(32(SP), 64(SP), 96(SP), 128(SP), Y10, Y4, Y5)
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ROUND_AVX2(160(SP), 192(SP), 224(SP), 256(SP), Y10, Y4, Y5)
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ROUND_AVX2(32(DX), 64(DX), 96(DX), 128(DX), Y10, Y4, Y5)
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ROUND_AVX2(160(DX), 192(DX), 224(DX), 256(DX), Y10, Y4, Y5)
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VPXOR Y0, Y8, Y8
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VPXOR Y1, Y9, Y9
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@ -366,7 +365,6 @@ noinc:
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VMOVDQU Y9, 32(AX)
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VZEROUPPER
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MOVQ DX, SP
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RET
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#define VPUNPCKLQDQ_X2_X2_X15 BYTE $0xC5; BYTE $0x69; BYTE $0x6C; BYTE $0xFA
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@ -584,11 +582,9 @@ TEXT ·hashBlocksAVX(SB), 4, $288-48 // frame size = 272 + 16 byte alignment
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MOVQ blocks_base+24(FP), SI
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MOVQ blocks_len+32(FP), DI
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MOVQ SP, BP
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MOVQ SP, R9
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ADDQ $15, R9
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ANDQ $~15, R9
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MOVQ R9, SP
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MOVQ SP, R10
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ADDQ $15, R10
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ANDQ $~15, R10
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VMOVDQU ·AVX_c40<>(SB), X0
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VMOVDQU ·AVX_c48<>(SB), X1
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@ -596,8 +592,8 @@ TEXT ·hashBlocksAVX(SB), 4, $288-48 // frame size = 272 + 16 byte alignment
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VMOVDQA X1, X9
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VMOVDQU ·AVX_iv3<>(SB), X0
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VMOVDQA X0, 0(SP)
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XORQ CX, 0(SP) // 0(SP) = ·AVX_iv3 ^ (CX || 0)
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VMOVDQA X0, 0(R10)
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XORQ CX, 0(R10) // 0(R10) = ·AVX_iv3 ^ (CX || 0)
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VMOVDQU 0(AX), X10
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VMOVDQU 16(AX), X11
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@ -624,35 +620,35 @@ noinc:
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VMOVDQU ·AVX_iv2<>(SB), X6
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VPXOR X15, X6, X6
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VMOVDQA 0(SP), X7
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VMOVDQA 0(R10), X7
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LOAD_MSG_AVX_0_2_4_6_1_3_5_7()
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VMOVDQA X12, 16(SP)
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VMOVDQA X13, 32(SP)
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VMOVDQA X14, 48(SP)
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VMOVDQA X15, 64(SP)
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VMOVDQA X12, 16(R10)
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VMOVDQA X13, 32(R10)
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VMOVDQA X14, 48(R10)
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VMOVDQA X15, 64(R10)
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
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SHUFFLE_AVX()
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LOAD_MSG_AVX(8, 10, 12, 14, 9, 11, 13, 15)
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VMOVDQA X12, 80(SP)
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VMOVDQA X13, 96(SP)
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VMOVDQA X14, 112(SP)
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VMOVDQA X15, 128(SP)
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VMOVDQA X12, 80(R10)
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VMOVDQA X13, 96(R10)
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VMOVDQA X14, 112(R10)
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VMOVDQA X15, 128(R10)
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
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SHUFFLE_AVX_INV()
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LOAD_MSG_AVX(14, 4, 9, 13, 10, 8, 15, 6)
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VMOVDQA X12, 144(SP)
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VMOVDQA X13, 160(SP)
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VMOVDQA X14, 176(SP)
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VMOVDQA X15, 192(SP)
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VMOVDQA X12, 144(R10)
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VMOVDQA X13, 160(R10)
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VMOVDQA X14, 176(R10)
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VMOVDQA X15, 192(R10)
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
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SHUFFLE_AVX()
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LOAD_MSG_AVX_1_0_11_5_12_2_7_3()
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VMOVDQA X12, 208(SP)
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VMOVDQA X13, 224(SP)
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VMOVDQA X14, 240(SP)
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VMOVDQA X15, 256(SP)
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VMOVDQA X12, 208(R10)
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VMOVDQA X13, 224(R10)
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VMOVDQA X14, 240(R10)
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VMOVDQA X15, 256(R10)
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
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SHUFFLE_AVX_INV()
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@ -712,14 +708,14 @@ noinc:
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
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SHUFFLE_AVX_INV()
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 16(SP), 32(SP), 48(SP), 64(SP), X15, X8, X9)
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 16(R10), 32(R10), 48(R10), 64(R10), X15, X8, X9)
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SHUFFLE_AVX()
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 80(SP), 96(SP), 112(SP), 128(SP), X15, X8, X9)
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 80(R10), 96(R10), 112(R10), 128(R10), X15, X8, X9)
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SHUFFLE_AVX_INV()
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 144(SP), 160(SP), 176(SP), 192(SP), X15, X8, X9)
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 144(R10), 160(R10), 176(R10), 192(R10), X15, X8, X9)
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SHUFFLE_AVX()
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 208(SP), 224(SP), 240(SP), 256(SP), X15, X8, X9)
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HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 208(R10), 224(R10), 240(R10), 256(R10), X15, X8, X9)
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SHUFFLE_AVX_INV()
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VMOVDQU 32(AX), X14
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@ -746,5 +742,4 @@ noinc:
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MOVQ R9, 8(BX)
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VZEROUPPER
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MOVQ BP, SP
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RET
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@ -2,7 +2,8 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !go1.7,amd64,!gccgo,!appengine
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//go:build !go1.7 && amd64 && gc && !purego
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// +build !go1.7,amd64,gc,!purego
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package blake2b
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@ -2,7 +2,8 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build amd64,!gccgo,!appengine
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//go:build amd64 && gc && !purego
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// +build amd64,gc,!purego
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#include "textflag.h"
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@ -118,15 +119,13 @@ TEXT ·hashBlocksSSE4(SB), 4, $288-48 // frame size = 272 + 16 byte alignment
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MOVQ blocks_base+24(FP), SI
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MOVQ blocks_len+32(FP), DI
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MOVQ SP, BP
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MOVQ SP, R9
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ADDQ $15, R9
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ANDQ $~15, R9
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MOVQ R9, SP
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MOVQ SP, R10
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ADDQ $15, R10
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ANDQ $~15, R10
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MOVOU ·iv3<>(SB), X0
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MOVO X0, 0(SP)
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XORQ CX, 0(SP) // 0(SP) = ·iv3 ^ (CX || 0)
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MOVO X0, 0(R10)
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XORQ CX, 0(R10) // 0(R10) = ·iv3 ^ (CX || 0)
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MOVOU ·c40<>(SB), X13
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MOVOU ·c48<>(SB), X14
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@ -156,35 +155,35 @@ noinc:
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MOVOU ·iv2<>(SB), X6
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PXOR X8, X6
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MOVO 0(SP), X7
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MOVO 0(R10), X7
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LOAD_MSG(X8, X9, X10, X11, SI, 0, 2, 4, 6, 1, 3, 5, 7)
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MOVO X8, 16(SP)
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MOVO X9, 32(SP)
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MOVO X10, 48(SP)
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MOVO X11, 64(SP)
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MOVO X8, 16(R10)
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MOVO X9, 32(R10)
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MOVO X10, 48(R10)
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MOVO X11, 64(R10)
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HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
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SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
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LOAD_MSG(X8, X9, X10, X11, SI, 8, 10, 12, 14, 9, 11, 13, 15)
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MOVO X8, 80(SP)
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MOVO X9, 96(SP)
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MOVO X10, 112(SP)
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MOVO X11, 128(SP)
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MOVO X8, 80(R10)
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MOVO X9, 96(R10)
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MOVO X10, 112(R10)
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MOVO X11, 128(R10)
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HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
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SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
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LOAD_MSG(X8, X9, X10, X11, SI, 14, 4, 9, 13, 10, 8, 15, 6)
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MOVO X8, 144(SP)
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MOVO X9, 160(SP)
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MOVO X10, 176(SP)
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MOVO X11, 192(SP)
|
||||
MOVO X8, 144(R10)
|
||||
MOVO X9, 160(R10)
|
||||
MOVO X10, 176(R10)
|
||||
MOVO X11, 192(R10)
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
|
||||
SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
|
||||
LOAD_MSG(X8, X9, X10, X11, SI, 1, 0, 11, 5, 12, 2, 7, 3)
|
||||
MOVO X8, 208(SP)
|
||||
MOVO X9, 224(SP)
|
||||
MOVO X10, 240(SP)
|
||||
MOVO X11, 256(SP)
|
||||
MOVO X8, 208(R10)
|
||||
MOVO X9, 224(R10)
|
||||
MOVO X10, 240(R10)
|
||||
MOVO X11, 256(R10)
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
|
||||
SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
|
||||
|
||||
|
@ -244,14 +243,14 @@ noinc:
|
|||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
|
||||
SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
|
||||
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 16(SP), 32(SP), 48(SP), 64(SP), X11, X13, X14)
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 16(R10), 32(R10), 48(R10), 64(R10), X11, X13, X14)
|
||||
SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 80(SP), 96(SP), 112(SP), 128(SP), X11, X13, X14)
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 80(R10), 96(R10), 112(R10), 128(R10), X11, X13, X14)
|
||||
SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
|
||||
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 144(SP), 160(SP), 176(SP), 192(SP), X11, X13, X14)
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 144(R10), 160(R10), 176(R10), 192(R10), X11, X13, X14)
|
||||
SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 208(SP), 224(SP), 240(SP), 256(SP), X11, X13, X14)
|
||||
HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 208(R10), 224(R10), 240(R10), 256(R10), X11, X13, X14)
|
||||
SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
|
||||
|
||||
MOVOU 32(AX), X10
|
||||
|
@ -277,5 +276,4 @@ noinc:
|
|||
MOVQ R8, 0(BX)
|
||||
MOVQ R9, 8(BX)
|
||||
|
||||
MOVQ BP, SP
|
||||
RET
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !amd64 appengine gccgo
|
||||
//go:build !amd64 || purego || !gc
|
||||
// +build !amd64 purego !gc
|
||||
|
||||
package blake2b
|
||||
|
||||
|
|
|
@ -2,6 +2,7 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build go1.9
|
||||
// +build go1.9
|
||||
|
||||
package blake2b
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build go1.11,!gccgo,!purego
|
||||
//go:build go1.11 && gc && !purego
|
||||
// +build go1.11,gc,!purego
|
||||
|
||||
package chacha20
|
||||
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build go1.11,!gccgo,!purego
|
||||
//go:build go1.11 && gc && !purego
|
||||
// +build go1.11,gc,!purego
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !arm64,!s390x,!ppc64le arm64,!go1.11 gccgo purego
|
||||
//go:build (!arm64 && !s390x && !ppc64le) || (arm64 && !go1.11) || !gc || purego
|
||||
// +build !arm64,!s390x,!ppc64le arm64,!go1.11 !gc purego
|
||||
|
||||
package chacha20
|
||||
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !gccgo,!purego
|
||||
//go:build gc && !purego
|
||||
// +build gc,!purego
|
||||
|
||||
package chacha20
|
||||
|
||||
|
|
|
@ -19,7 +19,8 @@
|
|||
// The differences in this and the original implementation are
|
||||
// due to the calling conventions and initialization of constants.
|
||||
|
||||
// +build !gccgo,!purego
|
||||
//go:build gc && !purego
|
||||
// +build gc,!purego
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !gccgo,!purego
|
||||
//go:build gc && !purego
|
||||
// +build gc,!purego
|
||||
|
||||
package chacha20
|
||||
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !gccgo,!purego
|
||||
//go:build gc && !purego
|
||||
// +build gc,!purego
|
||||
|
||||
#include "go_asm.h"
|
||||
#include "textflag.h"
|
||||
|
|
|
@ -10,6 +10,8 @@ package curve25519 // import "golang.org/x/crypto/curve25519"
|
|||
import (
|
||||
"crypto/subtle"
|
||||
"fmt"
|
||||
|
||||
"golang.org/x/crypto/curve25519/internal/field"
|
||||
)
|
||||
|
||||
// ScalarMult sets dst to the product scalar * point.
|
||||
|
@ -18,7 +20,55 @@ import (
|
|||
// zeroes, irrespective of the scalar. Instead, use the X25519 function, which
|
||||
// will return an error.
|
||||
func ScalarMult(dst, scalar, point *[32]byte) {
|
||||
scalarMult(dst, scalar, point)
|
||||
var e [32]byte
|
||||
|
||||
copy(e[:], scalar[:])
|
||||
e[0] &= 248
|
||||
e[31] &= 127
|
||||
e[31] |= 64
|
||||
|
||||
var x1, x2, z2, x3, z3, tmp0, tmp1 field.Element
|
||||
x1.SetBytes(point[:])
|
||||
x2.One()
|
||||
x3.Set(&x1)
|
||||
z3.One()
|
||||
|
||||
swap := 0
|
||||
for pos := 254; pos >= 0; pos-- {
|
||||
b := e[pos/8] >> uint(pos&7)
|
||||
b &= 1
|
||||
swap ^= int(b)
|
||||
x2.Swap(&x3, swap)
|
||||
z2.Swap(&z3, swap)
|
||||
swap = int(b)
|
||||
|
||||
tmp0.Subtract(&x3, &z3)
|
||||
tmp1.Subtract(&x2, &z2)
|
||||
x2.Add(&x2, &z2)
|
||||
z2.Add(&x3, &z3)
|
||||
z3.Multiply(&tmp0, &x2)
|
||||
z2.Multiply(&z2, &tmp1)
|
||||
tmp0.Square(&tmp1)
|
||||
tmp1.Square(&x2)
|
||||
x3.Add(&z3, &z2)
|
||||
z2.Subtract(&z3, &z2)
|
||||
x2.Multiply(&tmp1, &tmp0)
|
||||
tmp1.Subtract(&tmp1, &tmp0)
|
||||
z2.Square(&z2)
|
||||
|
||||
z3.Mult32(&tmp1, 121666)
|
||||
x3.Square(&x3)
|
||||
tmp0.Add(&tmp0, &z3)
|
||||
z3.Multiply(&x1, &z2)
|
||||
z2.Multiply(&tmp1, &tmp0)
|
||||
}
|
||||
|
||||
x2.Swap(&x3, swap)
|
||||
z2.Swap(&z3, swap)
|
||||
|
||||
z2.Invert(&z2)
|
||||
x2.Multiply(&x2, &z2)
|
||||
copy(dst[:], x2.Bytes())
|
||||
}
|
||||
|
||||
// ScalarBaseMult sets dst to the product scalar * base where base is the
|
||||
|
|
|
@ -1,240 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build amd64,!gccgo,!appengine,!purego
|
||||
|
||||
package curve25519
|
||||
|
||||
// These functions are implemented in the .s files. The names of the functions
|
||||
// in the rest of the file are also taken from the SUPERCOP sources to help
|
||||
// people following along.
|
||||
|
||||
//go:noescape
|
||||
|
||||
func cswap(inout *[5]uint64, v uint64)
|
||||
|
||||
//go:noescape
|
||||
|
||||
func ladderstep(inout *[5][5]uint64)
|
||||
|
||||
//go:noescape
|
||||
|
||||
func freeze(inout *[5]uint64)
|
||||
|
||||
//go:noescape
|
||||
|
||||
func mul(dest, a, b *[5]uint64)
|
||||
|
||||
//go:noescape
|
||||
|
||||
func square(out, in *[5]uint64)
|
||||
|
||||
// mladder uses a Montgomery ladder to calculate (xr/zr) *= s.
|
||||
func mladder(xr, zr *[5]uint64, s *[32]byte) {
|
||||
var work [5][5]uint64
|
||||
|
||||
work[0] = *xr
|
||||
setint(&work[1], 1)
|
||||
setint(&work[2], 0)
|
||||
work[3] = *xr
|
||||
setint(&work[4], 1)
|
||||
|
||||
j := uint(6)
|
||||
var prevbit byte
|
||||
|
||||
for i := 31; i >= 0; i-- {
|
||||
for j < 8 {
|
||||
bit := ((*s)[i] >> j) & 1
|
||||
swap := bit ^ prevbit
|
||||
prevbit = bit
|
||||
cswap(&work[1], uint64(swap))
|
||||
ladderstep(&work)
|
||||
j--
|
||||
}
|
||||
j = 7
|
||||
}
|
||||
|
||||
*xr = work[1]
|
||||
*zr = work[2]
|
||||
}
|
||||
|
||||
func scalarMult(out, in, base *[32]byte) {
|
||||
var e [32]byte
|
||||
copy(e[:], (*in)[:])
|
||||
e[0] &= 248
|
||||
e[31] &= 127
|
||||
e[31] |= 64
|
||||
|
||||
var t, z [5]uint64
|
||||
unpack(&t, base)
|
||||
mladder(&t, &z, &e)
|
||||
invert(&z, &z)
|
||||
mul(&t, &t, &z)
|
||||
pack(out, &t)
|
||||
}
|
||||
|
||||
func setint(r *[5]uint64, v uint64) {
|
||||
r[0] = v
|
||||
r[1] = 0
|
||||
r[2] = 0
|
||||
r[3] = 0
|
||||
r[4] = 0
|
||||
}
|
||||
|
||||
// unpack sets r = x where r consists of 5, 51-bit limbs in little-endian
|
||||
// order.
|
||||
func unpack(r *[5]uint64, x *[32]byte) {
|
||||
r[0] = uint64(x[0]) |
|
||||
uint64(x[1])<<8 |
|
||||
uint64(x[2])<<16 |
|
||||
uint64(x[3])<<24 |
|
||||
uint64(x[4])<<32 |
|
||||
uint64(x[5])<<40 |
|
||||
uint64(x[6]&7)<<48
|
||||
|
||||
r[1] = uint64(x[6])>>3 |
|
||||
uint64(x[7])<<5 |
|
||||
uint64(x[8])<<13 |
|
||||
uint64(x[9])<<21 |
|
||||
uint64(x[10])<<29 |
|
||||
uint64(x[11])<<37 |
|
||||
uint64(x[12]&63)<<45
|
||||
|
||||
r[2] = uint64(x[12])>>6 |
|
||||
uint64(x[13])<<2 |
|
||||
uint64(x[14])<<10 |
|
||||
uint64(x[15])<<18 |
|
||||
uint64(x[16])<<26 |
|
||||
uint64(x[17])<<34 |
|
||||
uint64(x[18])<<42 |
|
||||
uint64(x[19]&1)<<50
|
||||
|
||||
r[3] = uint64(x[19])>>1 |
|
||||
uint64(x[20])<<7 |
|
||||
uint64(x[21])<<15 |
|
||||
uint64(x[22])<<23 |
|
||||
uint64(x[23])<<31 |
|
||||
uint64(x[24])<<39 |
|
||||
uint64(x[25]&15)<<47
|
||||
|
||||
r[4] = uint64(x[25])>>4 |
|
||||
uint64(x[26])<<4 |
|
||||
uint64(x[27])<<12 |
|
||||
uint64(x[28])<<20 |
|
||||
uint64(x[29])<<28 |
|
||||
uint64(x[30])<<36 |
|
||||
uint64(x[31]&127)<<44
|
||||
}
|
||||
|
||||
// pack sets out = x where out is the usual, little-endian form of the 5,
|
||||
// 51-bit limbs in x.
|
||||
func pack(out *[32]byte, x *[5]uint64) {
|
||||
t := *x
|
||||
freeze(&t)
|
||||
|
||||
out[0] = byte(t[0])
|
||||
out[1] = byte(t[0] >> 8)
|
||||
out[2] = byte(t[0] >> 16)
|
||||
out[3] = byte(t[0] >> 24)
|
||||
out[4] = byte(t[0] >> 32)
|
||||
out[5] = byte(t[0] >> 40)
|
||||
out[6] = byte(t[0] >> 48)
|
||||
|
||||
out[6] ^= byte(t[1]<<3) & 0xf8
|
||||
out[7] = byte(t[1] >> 5)
|
||||
out[8] = byte(t[1] >> 13)
|
||||
out[9] = byte(t[1] >> 21)
|
||||
out[10] = byte(t[1] >> 29)
|
||||
out[11] = byte(t[1] >> 37)
|
||||
out[12] = byte(t[1] >> 45)
|
||||
|
||||
out[12] ^= byte(t[2]<<6) & 0xc0
|
||||
out[13] = byte(t[2] >> 2)
|
||||
out[14] = byte(t[2] >> 10)
|
||||
out[15] = byte(t[2] >> 18)
|
||||
out[16] = byte(t[2] >> 26)
|
||||
out[17] = byte(t[2] >> 34)
|
||||
out[18] = byte(t[2] >> 42)
|
||||
out[19] = byte(t[2] >> 50)
|
||||
|
||||
out[19] ^= byte(t[3]<<1) & 0xfe
|
||||
out[20] = byte(t[3] >> 7)
|
||||
out[21] = byte(t[3] >> 15)
|
||||
out[22] = byte(t[3] >> 23)
|
||||
out[23] = byte(t[3] >> 31)
|
||||
out[24] = byte(t[3] >> 39)
|
||||
out[25] = byte(t[3] >> 47)
|
||||
|
||||
out[25] ^= byte(t[4]<<4) & 0xf0
|
||||
out[26] = byte(t[4] >> 4)
|
||||
out[27] = byte(t[4] >> 12)
|
||||
out[28] = byte(t[4] >> 20)
|
||||
out[29] = byte(t[4] >> 28)
|
||||
out[30] = byte(t[4] >> 36)
|
||||
out[31] = byte(t[4] >> 44)
|
||||
}
|
||||
|
||||
// invert calculates r = x^-1 mod p using Fermat's little theorem.
|
||||
func invert(r *[5]uint64, x *[5]uint64) {
|
||||
var z2, z9, z11, z2_5_0, z2_10_0, z2_20_0, z2_50_0, z2_100_0, t [5]uint64
|
||||
|
||||
square(&z2, x) /* 2 */
|
||||
square(&t, &z2) /* 4 */
|
||||
square(&t, &t) /* 8 */
|
||||
mul(&z9, &t, x) /* 9 */
|
||||
mul(&z11, &z9, &z2) /* 11 */
|
||||
square(&t, &z11) /* 22 */
|
||||
mul(&z2_5_0, &t, &z9) /* 2^5 - 2^0 = 31 */
|
||||
|
||||
square(&t, &z2_5_0) /* 2^6 - 2^1 */
|
||||
for i := 1; i < 5; i++ { /* 2^20 - 2^10 */
|
||||
square(&t, &t)
|
||||
}
|
||||
mul(&z2_10_0, &t, &z2_5_0) /* 2^10 - 2^0 */
|
||||
|
||||
square(&t, &z2_10_0) /* 2^11 - 2^1 */
|
||||
for i := 1; i < 10; i++ { /* 2^20 - 2^10 */
|
||||
square(&t, &t)
|
||||
}
|
||||
mul(&z2_20_0, &t, &z2_10_0) /* 2^20 - 2^0 */
|
||||
|
||||
square(&t, &z2_20_0) /* 2^21 - 2^1 */
|
||||
for i := 1; i < 20; i++ { /* 2^40 - 2^20 */
|
||||
square(&t, &t)
|
||||
}
|
||||
mul(&t, &t, &z2_20_0) /* 2^40 - 2^0 */
|
||||
|
||||
square(&t, &t) /* 2^41 - 2^1 */
|
||||
for i := 1; i < 10; i++ { /* 2^50 - 2^10 */
|
||||
square(&t, &t)
|
||||
}
|
||||
mul(&z2_50_0, &t, &z2_10_0) /* 2^50 - 2^0 */
|
||||
|
||||
square(&t, &z2_50_0) /* 2^51 - 2^1 */
|
||||
for i := 1; i < 50; i++ { /* 2^100 - 2^50 */
|
||||
square(&t, &t)
|
||||
}
|
||||
mul(&z2_100_0, &t, &z2_50_0) /* 2^100 - 2^0 */
|
||||
|
||||
square(&t, &z2_100_0) /* 2^101 - 2^1 */
|
||||
for i := 1; i < 100; i++ { /* 2^200 - 2^100 */
|
||||
square(&t, &t)
|
||||
}
|
||||
mul(&t, &t, &z2_100_0) /* 2^200 - 2^0 */
|
||||
|
||||
square(&t, &t) /* 2^201 - 2^1 */
|
||||
for i := 1; i < 50; i++ { /* 2^250 - 2^50 */
|
||||
square(&t, &t)
|
||||
}
|
||||
mul(&t, &t, &z2_50_0) /* 2^250 - 2^0 */
|
||||
|
||||
square(&t, &t) /* 2^251 - 2^1 */
|
||||
square(&t, &t) /* 2^252 - 2^2 */
|
||||
square(&t, &t) /* 2^253 - 2^3 */
|
||||
|
||||
square(&t, &t) /* 2^254 - 2^4 */
|
||||
|
||||
square(&t, &t) /* 2^255 - 2^5 */
|
||||
mul(r, &t, &z11) /* 2^255 - 21 */
|
||||
}
|
File diff suppressed because it is too large
Load Diff
|
@ -1,828 +0,0 @@
|
|||
// Copyright 2013 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package curve25519
|
||||
|
||||
import "encoding/binary"
|
||||
|
||||
// This code is a port of the public domain, "ref10" implementation of
|
||||
// curve25519 from SUPERCOP 20130419 by D. J. Bernstein.
|
||||
|
||||
// fieldElement represents an element of the field GF(2^255 - 19). An element
|
||||
// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
|
||||
// t[3]+2^102 t[4]+...+2^230 t[9]. Bounds on each t[i] vary depending on
|
||||
// context.
|
||||
type fieldElement [10]int32
|
||||
|
||||
func feZero(fe *fieldElement) {
|
||||
for i := range fe {
|
||||
fe[i] = 0
|
||||
}
|
||||
}
|
||||
|
||||
func feOne(fe *fieldElement) {
|
||||
feZero(fe)
|
||||
fe[0] = 1
|
||||
}
|
||||
|
||||
func feAdd(dst, a, b *fieldElement) {
|
||||
for i := range dst {
|
||||
dst[i] = a[i] + b[i]
|
||||
}
|
||||
}
|
||||
|
||||
func feSub(dst, a, b *fieldElement) {
|
||||
for i := range dst {
|
||||
dst[i] = a[i] - b[i]
|
||||
}
|
||||
}
|
||||
|
||||
func feCopy(dst, src *fieldElement) {
|
||||
for i := range dst {
|
||||
dst[i] = src[i]
|
||||
}
|
||||
}
|
||||
|
||||
// feCSwap replaces (f,g) with (g,f) if b == 1; replaces (f,g) with (f,g) if b == 0.
|
||||
//
|
||||
// Preconditions: b in {0,1}.
|
||||
func feCSwap(f, g *fieldElement, b int32) {
|
||||
b = -b
|
||||
for i := range f {
|
||||
t := b & (f[i] ^ g[i])
|
||||
f[i] ^= t
|
||||
g[i] ^= t
|
||||
}
|
||||
}
|
||||
|
||||
// load3 reads a 24-bit, little-endian value from in.
|
||||
func load3(in []byte) int64 {
|
||||
var r int64
|
||||
r = int64(in[0])
|
||||
r |= int64(in[1]) << 8
|
||||
r |= int64(in[2]) << 16
|
||||
return r
|
||||
}
|
||||
|
||||
// load4 reads a 32-bit, little-endian value from in.
|
||||
func load4(in []byte) int64 {
|
||||
return int64(binary.LittleEndian.Uint32(in))
|
||||
}
|
||||
|
||||
func feFromBytes(dst *fieldElement, src *[32]byte) {
|
||||
h0 := load4(src[:])
|
||||
h1 := load3(src[4:]) << 6
|
||||
h2 := load3(src[7:]) << 5
|
||||
h3 := load3(src[10:]) << 3
|
||||
h4 := load3(src[13:]) << 2
|
||||
h5 := load4(src[16:])
|
||||
h6 := load3(src[20:]) << 7
|
||||
h7 := load3(src[23:]) << 5
|
||||
h8 := load3(src[26:]) << 4
|
||||
h9 := (load3(src[29:]) & 0x7fffff) << 2
|
||||
|
||||
var carry [10]int64
|
||||
carry[9] = (h9 + 1<<24) >> 25
|
||||
h0 += carry[9] * 19
|
||||
h9 -= carry[9] << 25
|
||||
carry[1] = (h1 + 1<<24) >> 25
|
||||
h2 += carry[1]
|
||||
h1 -= carry[1] << 25
|
||||
carry[3] = (h3 + 1<<24) >> 25
|
||||
h4 += carry[3]
|
||||
h3 -= carry[3] << 25
|
||||
carry[5] = (h5 + 1<<24) >> 25
|
||||
h6 += carry[5]
|
||||
h5 -= carry[5] << 25
|
||||
carry[7] = (h7 + 1<<24) >> 25
|
||||
h8 += carry[7]
|
||||
h7 -= carry[7] << 25
|
||||
|
||||
carry[0] = (h0 + 1<<25) >> 26
|
||||
h1 += carry[0]
|
||||
h0 -= carry[0] << 26
|
||||
carry[2] = (h2 + 1<<25) >> 26
|
||||
h3 += carry[2]
|
||||
h2 -= carry[2] << 26
|
||||
carry[4] = (h4 + 1<<25) >> 26
|
||||
h5 += carry[4]
|
||||
h4 -= carry[4] << 26
|
||||
carry[6] = (h6 + 1<<25) >> 26
|
||||
h7 += carry[6]
|
||||
h6 -= carry[6] << 26
|
||||
carry[8] = (h8 + 1<<25) >> 26
|
||||
h9 += carry[8]
|
||||
h8 -= carry[8] << 26
|
||||
|
||||
dst[0] = int32(h0)
|
||||
dst[1] = int32(h1)
|
||||
dst[2] = int32(h2)
|
||||
dst[3] = int32(h3)
|
||||
dst[4] = int32(h4)
|
||||
dst[5] = int32(h5)
|
||||
dst[6] = int32(h6)
|
||||
dst[7] = int32(h7)
|
||||
dst[8] = int32(h8)
|
||||
dst[9] = int32(h9)
|
||||
}
|
||||
|
||||
// feToBytes marshals h to s.
|
||||
// Preconditions:
|
||||
// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
|
||||
//
|
||||
// Write p=2^255-19; q=floor(h/p).
|
||||
// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
|
||||
//
|
||||
// Proof:
|
||||
// Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
|
||||
// Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4.
|
||||
//
|
||||
// Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
|
||||
// Then 0<y<1.
|
||||
//
|
||||
// Write r=h-pq.
|
||||
// Have 0<=r<=p-1=2^255-20.
|
||||
// Thus 0<=r+19(2^-255)r<r+19(2^-255)2^255<=2^255-1.
|
||||
//
|
||||
// Write x=r+19(2^-255)r+y.
|
||||
// Then 0<x<2^255 so floor(2^(-255)x) = 0 so floor(q+2^(-255)x) = q.
|
||||
//
|
||||
// Have q+2^(-255)x = 2^(-255)(h + 19 2^(-25) h9 + 2^(-1))
|
||||
// so floor(2^(-255)(h + 19 2^(-25) h9 + 2^(-1))) = q.
|
||||
func feToBytes(s *[32]byte, h *fieldElement) {
|
||||
var carry [10]int32
|
||||
|
||||
q := (19*h[9] + (1 << 24)) >> 25
|
||||
q = (h[0] + q) >> 26
|
||||
q = (h[1] + q) >> 25
|
||||
q = (h[2] + q) >> 26
|
||||
q = (h[3] + q) >> 25
|
||||
q = (h[4] + q) >> 26
|
||||
q = (h[5] + q) >> 25
|
||||
q = (h[6] + q) >> 26
|
||||
q = (h[7] + q) >> 25
|
||||
q = (h[8] + q) >> 26
|
||||
q = (h[9] + q) >> 25
|
||||
|
||||
// Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20.
|
||||
h[0] += 19 * q
|
||||
// Goal: Output h-2^255 q, which is between 0 and 2^255-20.
|
||||
|
||||
carry[0] = h[0] >> 26
|
||||
h[1] += carry[0]
|
||||
h[0] -= carry[0] << 26
|
||||
carry[1] = h[1] >> 25
|
||||
h[2] += carry[1]
|
||||
h[1] -= carry[1] << 25
|
||||
carry[2] = h[2] >> 26
|
||||
h[3] += carry[2]
|
||||
h[2] -= carry[2] << 26
|
||||
carry[3] = h[3] >> 25
|
||||
h[4] += carry[3]
|
||||
h[3] -= carry[3] << 25
|
||||
carry[4] = h[4] >> 26
|
||||
h[5] += carry[4]
|
||||
h[4] -= carry[4] << 26
|
||||
carry[5] = h[5] >> 25
|
||||
h[6] += carry[5]
|
||||
h[5] -= carry[5] << 25
|
||||
carry[6] = h[6] >> 26
|
||||
h[7] += carry[6]
|
||||
h[6] -= carry[6] << 26
|
||||
carry[7] = h[7] >> 25
|
||||
h[8] += carry[7]
|
||||
h[7] -= carry[7] << 25
|
||||
carry[8] = h[8] >> 26
|
||||
h[9] += carry[8]
|
||||
h[8] -= carry[8] << 26
|
||||
carry[9] = h[9] >> 25
|
||||
h[9] -= carry[9] << 25
|
||||
// h10 = carry9
|
||||
|
||||
// Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20.
|
||||
// Have h[0]+...+2^230 h[9] between 0 and 2^255-1;
|
||||
// evidently 2^255 h10-2^255 q = 0.
|
||||
// Goal: Output h[0]+...+2^230 h[9].
|
||||
|
||||
s[0] = byte(h[0] >> 0)
|
||||
s[1] = byte(h[0] >> 8)
|
||||
s[2] = byte(h[0] >> 16)
|
||||
s[3] = byte((h[0] >> 24) | (h[1] << 2))
|
||||
s[4] = byte(h[1] >> 6)
|
||||
s[5] = byte(h[1] >> 14)
|
||||
s[6] = byte((h[1] >> 22) | (h[2] << 3))
|
||||
s[7] = byte(h[2] >> 5)
|
||||
s[8] = byte(h[2] >> 13)
|
||||
s[9] = byte((h[2] >> 21) | (h[3] << 5))
|
||||
s[10] = byte(h[3] >> 3)
|
||||
s[11] = byte(h[3] >> 11)
|
||||
s[12] = byte((h[3] >> 19) | (h[4] << 6))
|
||||
s[13] = byte(h[4] >> 2)
|
||||
s[14] = byte(h[4] >> 10)
|
||||
s[15] = byte(h[4] >> 18)
|
||||
s[16] = byte(h[5] >> 0)
|
||||
s[17] = byte(h[5] >> 8)
|
||||
s[18] = byte(h[5] >> 16)
|
||||
s[19] = byte((h[5] >> 24) | (h[6] << 1))
|
||||
s[20] = byte(h[6] >> 7)
|
||||
s[21] = byte(h[6] >> 15)
|
||||
s[22] = byte((h[6] >> 23) | (h[7] << 3))
|
||||
s[23] = byte(h[7] >> 5)
|
||||
s[24] = byte(h[7] >> 13)
|
||||
s[25] = byte((h[7] >> 21) | (h[8] << 4))
|
||||
s[26] = byte(h[8] >> 4)
|
||||
s[27] = byte(h[8] >> 12)
|
||||
s[28] = byte((h[8] >> 20) | (h[9] << 6))
|
||||
s[29] = byte(h[9] >> 2)
|
||||
s[30] = byte(h[9] >> 10)
|
||||
s[31] = byte(h[9] >> 18)
|
||||
}
|
||||
|
||||
// feMul calculates h = f * g
|
||||
// Can overlap h with f or g.
|
||||
//
|
||||
// Preconditions:
|
||||
// |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
|
||||
// |g| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
|
||||
//
|
||||
// Postconditions:
|
||||
// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
|
||||
//
|
||||
// Notes on implementation strategy:
|
||||
//
|
||||
// Using schoolbook multiplication.
|
||||
// Karatsuba would save a little in some cost models.
|
||||
//
|
||||
// Most multiplications by 2 and 19 are 32-bit precomputations;
|
||||
// cheaper than 64-bit postcomputations.
|
||||
//
|
||||
// There is one remaining multiplication by 19 in the carry chain;
|
||||
// one *19 precomputation can be merged into this,
|
||||
// but the resulting data flow is considerably less clean.
|
||||
//
|
||||
// There are 12 carries below.
|
||||
// 10 of them are 2-way parallelizable and vectorizable.
|
||||
// Can get away with 11 carries, but then data flow is much deeper.
|
||||
//
|
||||
// With tighter constraints on inputs can squeeze carries into int32.
|
||||
func feMul(h, f, g *fieldElement) {
|
||||
f0 := f[0]
|
||||
f1 := f[1]
|
||||
f2 := f[2]
|
||||
f3 := f[3]
|
||||
f4 := f[4]
|
||||
f5 := f[5]
|
||||
f6 := f[6]
|
||||
f7 := f[7]
|
||||
f8 := f[8]
|
||||
f9 := f[9]
|
||||
g0 := g[0]
|
||||
g1 := g[1]
|
||||
g2 := g[2]
|
||||
g3 := g[3]
|
||||
g4 := g[4]
|
||||
g5 := g[5]
|
||||
g6 := g[6]
|
||||
g7 := g[7]
|
||||
g8 := g[8]
|
||||
g9 := g[9]
|
||||
g1_19 := 19 * g1 // 1.4*2^29
|
||||
g2_19 := 19 * g2 // 1.4*2^30; still ok
|
||||
g3_19 := 19 * g3
|
||||
g4_19 := 19 * g4
|
||||
g5_19 := 19 * g5
|
||||
g6_19 := 19 * g6
|
||||
g7_19 := 19 * g7
|
||||
g8_19 := 19 * g8
|
||||
g9_19 := 19 * g9
|
||||
f1_2 := 2 * f1
|
||||
f3_2 := 2 * f3
|
||||
f5_2 := 2 * f5
|
||||
f7_2 := 2 * f7
|
||||
f9_2 := 2 * f9
|
||||
f0g0 := int64(f0) * int64(g0)
|
||||
f0g1 := int64(f0) * int64(g1)
|
||||
f0g2 := int64(f0) * int64(g2)
|
||||
f0g3 := int64(f0) * int64(g3)
|
||||
f0g4 := int64(f0) * int64(g4)
|
||||
f0g5 := int64(f0) * int64(g5)
|
||||
f0g6 := int64(f0) * int64(g6)
|
||||
f0g7 := int64(f0) * int64(g7)
|
||||
f0g8 := int64(f0) * int64(g8)
|
||||
f0g9 := int64(f0) * int64(g9)
|
||||
f1g0 := int64(f1) * int64(g0)
|
||||
f1g1_2 := int64(f1_2) * int64(g1)
|
||||
f1g2 := int64(f1) * int64(g2)
|
||||
f1g3_2 := int64(f1_2) * int64(g3)
|
||||
f1g4 := int64(f1) * int64(g4)
|
||||
f1g5_2 := int64(f1_2) * int64(g5)
|
||||
f1g6 := int64(f1) * int64(g6)
|
||||
f1g7_2 := int64(f1_2) * int64(g7)
|
||||
f1g8 := int64(f1) * int64(g8)
|
||||
f1g9_38 := int64(f1_2) * int64(g9_19)
|
||||
f2g0 := int64(f2) * int64(g0)
|
||||
f2g1 := int64(f2) * int64(g1)
|
||||
f2g2 := int64(f2) * int64(g2)
|
||||
f2g3 := int64(f2) * int64(g3)
|
||||
f2g4 := int64(f2) * int64(g4)
|
||||
f2g5 := int64(f2) * int64(g5)
|
||||
f2g6 := int64(f2) * int64(g6)
|
||||
f2g7 := int64(f2) * int64(g7)
|
||||
f2g8_19 := int64(f2) * int64(g8_19)
|
||||
f2g9_19 := int64(f2) * int64(g9_19)
|
||||
f3g0 := int64(f3) * int64(g0)
|
||||
f3g1_2 := int64(f3_2) * int64(g1)
|
||||
f3g2 := int64(f3) * int64(g2)
|
||||
f3g3_2 := int64(f3_2) * int64(g3)
|
||||
f3g4 := int64(f3) * int64(g4)
|
||||
f3g5_2 := int64(f3_2) * int64(g5)
|
||||
f3g6 := int64(f3) * int64(g6)
|
||||
f3g7_38 := int64(f3_2) * int64(g7_19)
|
||||
f3g8_19 := int64(f3) * int64(g8_19)
|
||||
f3g9_38 := int64(f3_2) * int64(g9_19)
|
||||
f4g0 := int64(f4) * int64(g0)
|
||||
f4g1 := int64(f4) * int64(g1)
|
||||
f4g2 := int64(f4) * int64(g2)
|
||||
f4g3 := int64(f4) * int64(g3)
|
||||
f4g4 := int64(f4) * int64(g4)
|
||||
f4g5 := int64(f4) * int64(g5)
|
||||
f4g6_19 := int64(f4) * int64(g6_19)
|
||||
f4g7_19 := int64(f4) * int64(g7_19)
|
||||
f4g8_19 := int64(f4) * int64(g8_19)
|
||||
f4g9_19 := int64(f4) * int64(g9_19)
|
||||
f5g0 := int64(f5) * int64(g0)
|
||||
f5g1_2 := int64(f5_2) * int64(g1)
|
||||
f5g2 := int64(f5) * int64(g2)
|
||||
f5g3_2 := int64(f5_2) * int64(g3)
|
||||
f5g4 := int64(f5) * int64(g4)
|
||||
f5g5_38 := int64(f5_2) * int64(g5_19)
|
||||
f5g6_19 := int64(f5) * int64(g6_19)
|
||||
f5g7_38 := int64(f5_2) * int64(g7_19)
|
||||
f5g8_19 := int64(f5) * int64(g8_19)
|
||||
f5g9_38 := int64(f5_2) * int64(g9_19)
|
||||
f6g0 := int64(f6) * int64(g0)
|
||||
f6g1 := int64(f6) * int64(g1)
|
||||
f6g2 := int64(f6) * int64(g2)
|
||||
f6g3 := int64(f6) * int64(g3)
|
||||
f6g4_19 := int64(f6) * int64(g4_19)
|
||||
f6g5_19 := int64(f6) * int64(g5_19)
|
||||
f6g6_19 := int64(f6) * int64(g6_19)
|
||||
f6g7_19 := int64(f6) * int64(g7_19)
|
||||
f6g8_19 := int64(f6) * int64(g8_19)
|
||||
f6g9_19 := int64(f6) * int64(g9_19)
|
||||
f7g0 := int64(f7) * int64(g0)
|
||||
f7g1_2 := int64(f7_2) * int64(g1)
|
||||
f7g2 := int64(f7) * int64(g2)
|
||||
f7g3_38 := int64(f7_2) * int64(g3_19)
|
||||
f7g4_19 := int64(f7) * int64(g4_19)
|
||||
f7g5_38 := int64(f7_2) * int64(g5_19)
|
||||
f7g6_19 := int64(f7) * int64(g6_19)
|
||||
f7g7_38 := int64(f7_2) * int64(g7_19)
|
||||
f7g8_19 := int64(f7) * int64(g8_19)
|
||||
f7g9_38 := int64(f7_2) * int64(g9_19)
|
||||
f8g0 := int64(f8) * int64(g0)
|
||||
f8g1 := int64(f8) * int64(g1)
|
||||
f8g2_19 := int64(f8) * int64(g2_19)
|
||||
f8g3_19 := int64(f8) * int64(g3_19)
|
||||
f8g4_19 := int64(f8) * int64(g4_19)
|
||||
f8g5_19 := int64(f8) * int64(g5_19)
|
||||
f8g6_19 := int64(f8) * int64(g6_19)
|
||||
f8g7_19 := int64(f8) * int64(g7_19)
|
||||
f8g8_19 := int64(f8) * int64(g8_19)
|
||||
f8g9_19 := int64(f8) * int64(g9_19)
|
||||
f9g0 := int64(f9) * int64(g0)
|
||||
f9g1_38 := int64(f9_2) * int64(g1_19)
|
||||
f9g2_19 := int64(f9) * int64(g2_19)
|
||||
f9g3_38 := int64(f9_2) * int64(g3_19)
|
||||
f9g4_19 := int64(f9) * int64(g4_19)
|
||||
f9g5_38 := int64(f9_2) * int64(g5_19)
|
||||
f9g6_19 := int64(f9) * int64(g6_19)
|
||||
f9g7_38 := int64(f9_2) * int64(g7_19)
|
||||
f9g8_19 := int64(f9) * int64(g8_19)
|
||||
f9g9_38 := int64(f9_2) * int64(g9_19)
|
||||
h0 := f0g0 + f1g9_38 + f2g8_19 + f3g7_38 + f4g6_19 + f5g5_38 + f6g4_19 + f7g3_38 + f8g2_19 + f9g1_38
|
||||
h1 := f0g1 + f1g0 + f2g9_19 + f3g8_19 + f4g7_19 + f5g6_19 + f6g5_19 + f7g4_19 + f8g3_19 + f9g2_19
|
||||
h2 := f0g2 + f1g1_2 + f2g0 + f3g9_38 + f4g8_19 + f5g7_38 + f6g6_19 + f7g5_38 + f8g4_19 + f9g3_38
|
||||
h3 := f0g3 + f1g2 + f2g1 + f3g0 + f4g9_19 + f5g8_19 + f6g7_19 + f7g6_19 + f8g5_19 + f9g4_19
|
||||
h4 := f0g4 + f1g3_2 + f2g2 + f3g1_2 + f4g0 + f5g9_38 + f6g8_19 + f7g7_38 + f8g6_19 + f9g5_38
|
||||
h5 := f0g5 + f1g4 + f2g3 + f3g2 + f4g1 + f5g0 + f6g9_19 + f7g8_19 + f8g7_19 + f9g6_19
|
||||
h6 := f0g6 + f1g5_2 + f2g4 + f3g3_2 + f4g2 + f5g1_2 + f6g0 + f7g9_38 + f8g8_19 + f9g7_38
|
||||
h7 := f0g7 + f1g6 + f2g5 + f3g4 + f4g3 + f5g2 + f6g1 + f7g0 + f8g9_19 + f9g8_19
|
||||
h8 := f0g8 + f1g7_2 + f2g6 + f3g5_2 + f4g4 + f5g3_2 + f6g2 + f7g1_2 + f8g0 + f9g9_38
|
||||
h9 := f0g9 + f1g8 + f2g7 + f3g6 + f4g5 + f5g4 + f6g3 + f7g2 + f8g1 + f9g0
|
||||
var carry [10]int64
|
||||
|
||||
// |h0| <= (1.1*1.1*2^52*(1+19+19+19+19)+1.1*1.1*2^50*(38+38+38+38+38))
|
||||
// i.e. |h0| <= 1.2*2^59; narrower ranges for h2, h4, h6, h8
|
||||
// |h1| <= (1.1*1.1*2^51*(1+1+19+19+19+19+19+19+19+19))
|
||||
// i.e. |h1| <= 1.5*2^58; narrower ranges for h3, h5, h7, h9
|
||||
|
||||
carry[0] = (h0 + (1 << 25)) >> 26
|
||||
h1 += carry[0]
|
||||
h0 -= carry[0] << 26
|
||||
carry[4] = (h4 + (1 << 25)) >> 26
|
||||
h5 += carry[4]
|
||||
h4 -= carry[4] << 26
|
||||
// |h0| <= 2^25
|
||||
// |h4| <= 2^25
|
||||
// |h1| <= 1.51*2^58
|
||||
// |h5| <= 1.51*2^58
|
||||
|
||||
carry[1] = (h1 + (1 << 24)) >> 25
|
||||
h2 += carry[1]
|
||||
h1 -= carry[1] << 25
|
||||
carry[5] = (h5 + (1 << 24)) >> 25
|
||||
h6 += carry[5]
|
||||
h5 -= carry[5] << 25
|
||||
// |h1| <= 2^24; from now on fits into int32
|
||||
// |h5| <= 2^24; from now on fits into int32
|
||||
// |h2| <= 1.21*2^59
|
||||
// |h6| <= 1.21*2^59
|
||||
|
||||
carry[2] = (h2 + (1 << 25)) >> 26
|
||||
h3 += carry[2]
|
||||
h2 -= carry[2] << 26
|
||||
carry[6] = (h6 + (1 << 25)) >> 26
|
||||
h7 += carry[6]
|
||||
h6 -= carry[6] << 26
|
||||
// |h2| <= 2^25; from now on fits into int32 unchanged
|
||||
// |h6| <= 2^25; from now on fits into int32 unchanged
|
||||
// |h3| <= 1.51*2^58
|
||||
// |h7| <= 1.51*2^58
|
||||
|
||||
carry[3] = (h3 + (1 << 24)) >> 25
|
||||
h4 += carry[3]
|
||||
h3 -= carry[3] << 25
|
||||
carry[7] = (h7 + (1 << 24)) >> 25
|
||||
h8 += carry[7]
|
||||
h7 -= carry[7] << 25
|
||||
// |h3| <= 2^24; from now on fits into int32 unchanged
|
||||
// |h7| <= 2^24; from now on fits into int32 unchanged
|
||||
// |h4| <= 1.52*2^33
|
||||
// |h8| <= 1.52*2^33
|
||||
|
||||
carry[4] = (h4 + (1 << 25)) >> 26
|
||||
h5 += carry[4]
|
||||
h4 -= carry[4] << 26
|
||||
carry[8] = (h8 + (1 << 25)) >> 26
|
||||
h9 += carry[8]
|
||||
h8 -= carry[8] << 26
|
||||
// |h4| <= 2^25; from now on fits into int32 unchanged
|
||||
// |h8| <= 2^25; from now on fits into int32 unchanged
|
||||
// |h5| <= 1.01*2^24
|
||||
// |h9| <= 1.51*2^58
|
||||
|
||||
carry[9] = (h9 + (1 << 24)) >> 25
|
||||
h0 += carry[9] * 19
|
||||
h9 -= carry[9] << 25
|
||||
// |h9| <= 2^24; from now on fits into int32 unchanged
|
||||
// |h0| <= 1.8*2^37
|
||||
|
||||
carry[0] = (h0 + (1 << 25)) >> 26
|
||||
h1 += carry[0]
|
||||
h0 -= carry[0] << 26
|
||||
// |h0| <= 2^25; from now on fits into int32 unchanged
|
||||
// |h1| <= 1.01*2^24
|
||||
|
||||
h[0] = int32(h0)
|
||||
h[1] = int32(h1)
|
||||
h[2] = int32(h2)
|
||||
h[3] = int32(h3)
|
||||
h[4] = int32(h4)
|
||||
h[5] = int32(h5)
|
||||
h[6] = int32(h6)
|
||||
h[7] = int32(h7)
|
||||
h[8] = int32(h8)
|
||||
h[9] = int32(h9)
|
||||
}
|
||||
|
||||
// feSquare calculates h = f*f. Can overlap h with f.
|
||||
//
|
||||
// Preconditions:
|
||||
// |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
|
||||
//
|
||||
// Postconditions:
|
||||
// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
|
||||
func feSquare(h, f *fieldElement) {
|
||||
f0 := f[0]
|
||||
f1 := f[1]
|
||||
f2 := f[2]
|
||||
f3 := f[3]
|
||||
f4 := f[4]
|
||||
f5 := f[5]
|
||||
f6 := f[6]
|
||||
f7 := f[7]
|
||||
f8 := f[8]
|
||||
f9 := f[9]
|
||||
f0_2 := 2 * f0
|
||||
f1_2 := 2 * f1
|
||||
f2_2 := 2 * f2
|
||||
f3_2 := 2 * f3
|
||||
f4_2 := 2 * f4
|
||||
f5_2 := 2 * f5
|
||||
f6_2 := 2 * f6
|
||||
f7_2 := 2 * f7
|
||||
f5_38 := 38 * f5 // 1.31*2^30
|
||||
f6_19 := 19 * f6 // 1.31*2^30
|
||||
f7_38 := 38 * f7 // 1.31*2^30
|
||||
f8_19 := 19 * f8 // 1.31*2^30
|
||||
f9_38 := 38 * f9 // 1.31*2^30
|
||||
f0f0 := int64(f0) * int64(f0)
|
||||
f0f1_2 := int64(f0_2) * int64(f1)
|
||||
f0f2_2 := int64(f0_2) * int64(f2)
|
||||
f0f3_2 := int64(f0_2) * int64(f3)
|
||||
f0f4_2 := int64(f0_2) * int64(f4)
|
||||
f0f5_2 := int64(f0_2) * int64(f5)
|
||||
f0f6_2 := int64(f0_2) * int64(f6)
|
||||
f0f7_2 := int64(f0_2) * int64(f7)
|
||||
f0f8_2 := int64(f0_2) * int64(f8)
|
||||
f0f9_2 := int64(f0_2) * int64(f9)
|
||||
f1f1_2 := int64(f1_2) * int64(f1)
|
||||
f1f2_2 := int64(f1_2) * int64(f2)
|
||||
f1f3_4 := int64(f1_2) * int64(f3_2)
|
||||
f1f4_2 := int64(f1_2) * int64(f4)
|
||||
f1f5_4 := int64(f1_2) * int64(f5_2)
|
||||
f1f6_2 := int64(f1_2) * int64(f6)
|
||||
f1f7_4 := int64(f1_2) * int64(f7_2)
|
||||
f1f8_2 := int64(f1_2) * int64(f8)
|
||||
f1f9_76 := int64(f1_2) * int64(f9_38)
|
||||
f2f2 := int64(f2) * int64(f2)
|
||||
f2f3_2 := int64(f2_2) * int64(f3)
|
||||
f2f4_2 := int64(f2_2) * int64(f4)
|
||||
f2f5_2 := int64(f2_2) * int64(f5)
|
||||
f2f6_2 := int64(f2_2) * int64(f6)
|
||||
f2f7_2 := int64(f2_2) * int64(f7)
|
||||
f2f8_38 := int64(f2_2) * int64(f8_19)
|
||||
f2f9_38 := int64(f2) * int64(f9_38)
|
||||
f3f3_2 := int64(f3_2) * int64(f3)
|
||||
f3f4_2 := int64(f3_2) * int64(f4)
|
||||
f3f5_4 := int64(f3_2) * int64(f5_2)
|
||||
f3f6_2 := int64(f3_2) * int64(f6)
|
||||
f3f7_76 := int64(f3_2) * int64(f7_38)
|
||||
f3f8_38 := int64(f3_2) * int64(f8_19)
|
||||
f3f9_76 := int64(f3_2) * int64(f9_38)
|
||||
f4f4 := int64(f4) * int64(f4)
|
||||
f4f5_2 := int64(f4_2) * int64(f5)
|
||||
f4f6_38 := int64(f4_2) * int64(f6_19)
|
||||
f4f7_38 := int64(f4) * int64(f7_38)
|
||||
f4f8_38 := int64(f4_2) * int64(f8_19)
|
||||
f4f9_38 := int64(f4) * int64(f9_38)
|
||||
f5f5_38 := int64(f5) * int64(f5_38)
|
||||
f5f6_38 := int64(f5_2) * int64(f6_19)
|
||||
f5f7_76 := int64(f5_2) * int64(f7_38)
|
||||
f5f8_38 := int64(f5_2) * int64(f8_19)
|
||||
f5f9_76 := int64(f5_2) * int64(f9_38)
|
||||
f6f6_19 := int64(f6) * int64(f6_19)
|
||||
f6f7_38 := int64(f6) * int64(f7_38)
|
||||
f6f8_38 := int64(f6_2) * int64(f8_19)
|
||||
f6f9_38 := int64(f6) * int64(f9_38)
|
||||
f7f7_38 := int64(f7) * int64(f7_38)
|
||||
f7f8_38 := int64(f7_2) * int64(f8_19)
|
||||
f7f9_76 := int64(f7_2) * int64(f9_38)
|
||||
f8f8_19 := int64(f8) * int64(f8_19)
|
||||
f8f9_38 := int64(f8) * int64(f9_38)
|
||||
f9f9_38 := int64(f9) * int64(f9_38)
|
||||
h0 := f0f0 + f1f9_76 + f2f8_38 + f3f7_76 + f4f6_38 + f5f5_38
|
||||
h1 := f0f1_2 + f2f9_38 + f3f8_38 + f4f7_38 + f5f6_38
|
||||
h2 := f0f2_2 + f1f1_2 + f3f9_76 + f4f8_38 + f5f7_76 + f6f6_19
|
||||
h3 := f0f3_2 + f1f2_2 + f4f9_38 + f5f8_38 + f6f7_38
|
||||
h4 := f0f4_2 + f1f3_4 + f2f2 + f5f9_76 + f6f8_38 + f7f7_38
|
||||
h5 := f0f5_2 + f1f4_2 + f2f3_2 + f6f9_38 + f7f8_38
|
||||
h6 := f0f6_2 + f1f5_4 + f2f4_2 + f3f3_2 + f7f9_76 + f8f8_19
|
||||
h7 := f0f7_2 + f1f6_2 + f2f5_2 + f3f4_2 + f8f9_38
|
||||
h8 := f0f8_2 + f1f7_4 + f2f6_2 + f3f5_4 + f4f4 + f9f9_38
|
||||
h9 := f0f9_2 + f1f8_2 + f2f7_2 + f3f6_2 + f4f5_2
|
||||
var carry [10]int64
|
||||
|
||||
carry[0] = (h0 + (1 << 25)) >> 26
|
||||
h1 += carry[0]
|
||||
h0 -= carry[0] << 26
|
||||
carry[4] = (h4 + (1 << 25)) >> 26
|
||||
h5 += carry[4]
|
||||
h4 -= carry[4] << 26
|
||||
|
||||
carry[1] = (h1 + (1 << 24)) >> 25
|
||||
h2 += carry[1]
|
||||
h1 -= carry[1] << 25
|
||||
carry[5] = (h5 + (1 << 24)) >> 25
|
||||
h6 += carry[5]
|
||||
h5 -= carry[5] << 25
|
||||
|
||||
carry[2] = (h2 + (1 << 25)) >> 26
|
||||
h3 += carry[2]
|
||||
h2 -= carry[2] << 26
|
||||
carry[6] = (h6 + (1 << 25)) >> 26
|
||||
h7 += carry[6]
|
||||
h6 -= carry[6] << 26
|
||||
|
||||
carry[3] = (h3 + (1 << 24)) >> 25
|
||||
h4 += carry[3]
|
||||
h3 -= carry[3] << 25
|
||||
carry[7] = (h7 + (1 << 24)) >> 25
|
||||
h8 += carry[7]
|
||||
h7 -= carry[7] << 25
|
||||
|
||||
carry[4] = (h4 + (1 << 25)) >> 26
|
||||
h5 += carry[4]
|
||||
h4 -= carry[4] << 26
|
||||
carry[8] = (h8 + (1 << 25)) >> 26
|
||||
h9 += carry[8]
|
||||
h8 -= carry[8] << 26
|
||||
|
||||
carry[9] = (h9 + (1 << 24)) >> 25
|
||||
h0 += carry[9] * 19
|
||||
h9 -= carry[9] << 25
|
||||
|
||||
carry[0] = (h0 + (1 << 25)) >> 26
|
||||
h1 += carry[0]
|
||||
h0 -= carry[0] << 26
|
||||
|
||||
h[0] = int32(h0)
|
||||
h[1] = int32(h1)
|
||||
h[2] = int32(h2)
|
||||
h[3] = int32(h3)
|
||||
h[4] = int32(h4)
|
||||
h[5] = int32(h5)
|
||||
h[6] = int32(h6)
|
||||
h[7] = int32(h7)
|
||||
h[8] = int32(h8)
|
||||
h[9] = int32(h9)
|
||||
}
|
||||
|
||||
// feMul121666 calculates h = f * 121666. Can overlap h with f.
|
||||
//
|
||||
// Preconditions:
|
||||
// |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
|
||||
//
|
||||
// Postconditions:
|
||||
// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
|
||||
func feMul121666(h, f *fieldElement) {
|
||||
h0 := int64(f[0]) * 121666
|
||||
h1 := int64(f[1]) * 121666
|
||||
h2 := int64(f[2]) * 121666
|
||||
h3 := int64(f[3]) * 121666
|
||||
h4 := int64(f[4]) * 121666
|
||||
h5 := int64(f[5]) * 121666
|
||||
h6 := int64(f[6]) * 121666
|
||||
h7 := int64(f[7]) * 121666
|
||||
h8 := int64(f[8]) * 121666
|
||||
h9 := int64(f[9]) * 121666
|
||||
var carry [10]int64
|
||||
|
||||
carry[9] = (h9 + (1 << 24)) >> 25
|
||||
h0 += carry[9] * 19
|
||||
h9 -= carry[9] << 25
|
||||
carry[1] = (h1 + (1 << 24)) >> 25
|
||||
h2 += carry[1]
|
||||
h1 -= carry[1] << 25
|
||||
carry[3] = (h3 + (1 << 24)) >> 25
|
||||
h4 += carry[3]
|
||||
h3 -= carry[3] << 25
|
||||
carry[5] = (h5 + (1 << 24)) >> 25
|
||||
h6 += carry[5]
|
||||
h5 -= carry[5] << 25
|
||||
carry[7] = (h7 + (1 << 24)) >> 25
|
||||
h8 += carry[7]
|
||||
h7 -= carry[7] << 25
|
||||
|
||||
carry[0] = (h0 + (1 << 25)) >> 26
|
||||
h1 += carry[0]
|
||||
h0 -= carry[0] << 26
|
||||
carry[2] = (h2 + (1 << 25)) >> 26
|
||||
h3 += carry[2]
|
||||
h2 -= carry[2] << 26
|
||||
carry[4] = (h4 + (1 << 25)) >> 26
|
||||
h5 += carry[4]
|
||||
h4 -= carry[4] << 26
|
||||
carry[6] = (h6 + (1 << 25)) >> 26
|
||||
h7 += carry[6]
|
||||
h6 -= carry[6] << 26
|
||||
carry[8] = (h8 + (1 << 25)) >> 26
|
||||
h9 += carry[8]
|
||||
h8 -= carry[8] << 26
|
||||
|
||||
h[0] = int32(h0)
|
||||
h[1] = int32(h1)
|
||||
h[2] = int32(h2)
|
||||
h[3] = int32(h3)
|
||||
h[4] = int32(h4)
|
||||
h[5] = int32(h5)
|
||||
h[6] = int32(h6)
|
||||
h[7] = int32(h7)
|
||||
h[8] = int32(h8)
|
||||
h[9] = int32(h9)
|
||||
}
|
||||
|
||||
// feInvert sets out = z^-1.
|
||||
func feInvert(out, z *fieldElement) {
|
||||
var t0, t1, t2, t3 fieldElement
|
||||
var i int
|
||||
|
||||
feSquare(&t0, z)
|
||||
for i = 1; i < 1; i++ {
|
||||
feSquare(&t0, &t0)
|
||||
}
|
||||
feSquare(&t1, &t0)
|
||||
for i = 1; i < 2; i++ {
|
||||
feSquare(&t1, &t1)
|
||||
}
|
||||
feMul(&t1, z, &t1)
|
||||
feMul(&t0, &t0, &t1)
|
||||
feSquare(&t2, &t0)
|
||||
for i = 1; i < 1; i++ {
|
||||
feSquare(&t2, &t2)
|
||||
}
|
||||
feMul(&t1, &t1, &t2)
|
||||
feSquare(&t2, &t1)
|
||||
for i = 1; i < 5; i++ {
|
||||
feSquare(&t2, &t2)
|
||||
}
|
||||
feMul(&t1, &t2, &t1)
|
||||
feSquare(&t2, &t1)
|
||||
for i = 1; i < 10; i++ {
|
||||
feSquare(&t2, &t2)
|
||||
}
|
||||
feMul(&t2, &t2, &t1)
|
||||
feSquare(&t3, &t2)
|
||||
for i = 1; i < 20; i++ {
|
||||
feSquare(&t3, &t3)
|
||||
}
|
||||
feMul(&t2, &t3, &t2)
|
||||
feSquare(&t2, &t2)
|
||||
for i = 1; i < 10; i++ {
|
||||
feSquare(&t2, &t2)
|
||||
}
|
||||
feMul(&t1, &t2, &t1)
|
||||
feSquare(&t2, &t1)
|
||||
for i = 1; i < 50; i++ {
|
||||
feSquare(&t2, &t2)
|
||||
}
|
||||
feMul(&t2, &t2, &t1)
|
||||
feSquare(&t3, &t2)
|
||||
for i = 1; i < 100; i++ {
|
||||
feSquare(&t3, &t3)
|
||||
}
|
||||
feMul(&t2, &t3, &t2)
|
||||
feSquare(&t2, &t2)
|
||||
for i = 1; i < 50; i++ {
|
||||
feSquare(&t2, &t2)
|
||||
}
|
||||
feMul(&t1, &t2, &t1)
|
||||
feSquare(&t1, &t1)
|
||||
for i = 1; i < 5; i++ {
|
||||
feSquare(&t1, &t1)
|
||||
}
|
||||
feMul(out, &t1, &t0)
|
||||
}
|
||||
|
||||
func scalarMultGeneric(out, in, base *[32]byte) {
|
||||
var e [32]byte
|
||||
|
||||
copy(e[:], in[:])
|
||||
e[0] &= 248
|
||||
e[31] &= 127
|
||||
e[31] |= 64
|
||||
|
||||
var x1, x2, z2, x3, z3, tmp0, tmp1 fieldElement
|
||||
feFromBytes(&x1, base)
|
||||
feOne(&x2)
|
||||
feCopy(&x3, &x1)
|
||||
feOne(&z3)
|
||||
|
||||
swap := int32(0)
|
||||
for pos := 254; pos >= 0; pos-- {
|
||||
b := e[pos/8] >> uint(pos&7)
|
||||
b &= 1
|
||||
swap ^= int32(b)
|
||||
feCSwap(&x2, &x3, swap)
|
||||
feCSwap(&z2, &z3, swap)
|
||||
swap = int32(b)
|
||||
|
||||
feSub(&tmp0, &x3, &z3)
|
||||
feSub(&tmp1, &x2, &z2)
|
||||
feAdd(&x2, &x2, &z2)
|
||||
feAdd(&z2, &x3, &z3)
|
||||
feMul(&z3, &tmp0, &x2)
|
||||
feMul(&z2, &z2, &tmp1)
|
||||
feSquare(&tmp0, &tmp1)
|
||||
feSquare(&tmp1, &x2)
|
||||
feAdd(&x3, &z3, &z2)
|
||||
feSub(&z2, &z3, &z2)
|
||||
feMul(&x2, &tmp1, &tmp0)
|
||||
feSub(&tmp1, &tmp1, &tmp0)
|
||||
feSquare(&z2, &z2)
|
||||
feMul121666(&z3, &tmp1)
|
||||
feSquare(&x3, &x3)
|
||||
feAdd(&tmp0, &tmp0, &z3)
|
||||
feMul(&z3, &x1, &z2)
|
||||
feMul(&z2, &tmp1, &tmp0)
|
||||
}
|
||||
|
||||
feCSwap(&x2, &x3, swap)
|
||||
feCSwap(&z2, &z3, swap)
|
||||
|
||||
feInvert(&z2, &z2)
|
||||
feMul(&x2, &x2, &z2)
|
||||
feToBytes(out, &x2)
|
||||
}
|
|
@ -1,11 +0,0 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !amd64 gccgo appengine purego
|
||||
|
||||
package curve25519
|
||||
|
||||
func scalarMult(out, in, base *[32]byte) {
|
||||
scalarMultGeneric(out, in, base)
|
||||
}
|
|
@ -0,0 +1,7 @@
|
|||
This package is kept in sync with crypto/ed25519/internal/edwards25519/field in
|
||||
the standard library.
|
||||
|
||||
If there are any changes in the standard library that need to be synced to this
|
||||
package, run sync.sh. It will not overwrite any local changes made since the
|
||||
previous sync, so it's ok to land changes in this package first, and then sync
|
||||
to the standard library later.
|
|
@ -0,0 +1,416 @@
|
|||
// Copyright (c) 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package field implements fast arithmetic modulo 2^255-19.
|
||||
package field
|
||||
|
||||
import (
|
||||
"crypto/subtle"
|
||||
"encoding/binary"
|
||||
"math/bits"
|
||||
)
|
||||
|
||||
// Element represents an element of the field GF(2^255-19). Note that this
|
||||
// is not a cryptographically secure group, and should only be used to interact
|
||||
// with edwards25519.Point coordinates.
|
||||
//
|
||||
// This type works similarly to math/big.Int, and all arguments and receivers
|
||||
// are allowed to alias.
|
||||
//
|
||||
// The zero value is a valid zero element.
|
||||
type Element struct {
|
||||
// An element t represents the integer
|
||||
// t.l0 + t.l1*2^51 + t.l2*2^102 + t.l3*2^153 + t.l4*2^204
|
||||
//
|
||||
// Between operations, all limbs are expected to be lower than 2^52.
|
||||
l0 uint64
|
||||
l1 uint64
|
||||
l2 uint64
|
||||
l3 uint64
|
||||
l4 uint64
|
||||
}
|
||||
|
||||
const maskLow51Bits uint64 = (1 << 51) - 1
|
||||
|
||||
var feZero = &Element{0, 0, 0, 0, 0}
|
||||
|
||||
// Zero sets v = 0, and returns v.
|
||||
func (v *Element) Zero() *Element {
|
||||
*v = *feZero
|
||||
return v
|
||||
}
|
||||
|
||||
var feOne = &Element{1, 0, 0, 0, 0}
|
||||
|
||||
// One sets v = 1, and returns v.
|
||||
func (v *Element) One() *Element {
|
||||
*v = *feOne
|
||||
return v
|
||||
}
|
||||
|
||||
// reduce reduces v modulo 2^255 - 19 and returns it.
|
||||
func (v *Element) reduce() *Element {
|
||||
v.carryPropagate()
|
||||
|
||||
// After the light reduction we now have a field element representation
|
||||
// v < 2^255 + 2^13 * 19, but need v < 2^255 - 19.
|
||||
|
||||
// If v >= 2^255 - 19, then v + 19 >= 2^255, which would overflow 2^255 - 1,
|
||||
// generating a carry. That is, c will be 0 if v < 2^255 - 19, and 1 otherwise.
|
||||
c := (v.l0 + 19) >> 51
|
||||
c = (v.l1 + c) >> 51
|
||||
c = (v.l2 + c) >> 51
|
||||
c = (v.l3 + c) >> 51
|
||||
c = (v.l4 + c) >> 51
|
||||
|
||||
// If v < 2^255 - 19 and c = 0, this will be a no-op. Otherwise, it's
|
||||
// effectively applying the reduction identity to the carry.
|
||||
v.l0 += 19 * c
|
||||
|
||||
v.l1 += v.l0 >> 51
|
||||
v.l0 = v.l0 & maskLow51Bits
|
||||
v.l2 += v.l1 >> 51
|
||||
v.l1 = v.l1 & maskLow51Bits
|
||||
v.l3 += v.l2 >> 51
|
||||
v.l2 = v.l2 & maskLow51Bits
|
||||
v.l4 += v.l3 >> 51
|
||||
v.l3 = v.l3 & maskLow51Bits
|
||||
// no additional carry
|
||||
v.l4 = v.l4 & maskLow51Bits
|
||||
|
||||
return v
|
||||
}
|
||||
|
||||
// Add sets v = a + b, and returns v.
|
||||
func (v *Element) Add(a, b *Element) *Element {
|
||||
v.l0 = a.l0 + b.l0
|
||||
v.l1 = a.l1 + b.l1
|
||||
v.l2 = a.l2 + b.l2
|
||||
v.l3 = a.l3 + b.l3
|
||||
v.l4 = a.l4 + b.l4
|
||||
// Using the generic implementation here is actually faster than the
|
||||
// assembly. Probably because the body of this function is so simple that
|
||||
// the compiler can figure out better optimizations by inlining the carry
|
||||
// propagation. TODO
|
||||
return v.carryPropagateGeneric()
|
||||
}
|
||||
|
||||
// Subtract sets v = a - b, and returns v.
|
||||
func (v *Element) Subtract(a, b *Element) *Element {
|
||||
// We first add 2 * p, to guarantee the subtraction won't underflow, and
|
||||
// then subtract b (which can be up to 2^255 + 2^13 * 19).
|
||||
v.l0 = (a.l0 + 0xFFFFFFFFFFFDA) - b.l0
|
||||
v.l1 = (a.l1 + 0xFFFFFFFFFFFFE) - b.l1
|
||||
v.l2 = (a.l2 + 0xFFFFFFFFFFFFE) - b.l2
|
||||
v.l3 = (a.l3 + 0xFFFFFFFFFFFFE) - b.l3
|
||||
v.l4 = (a.l4 + 0xFFFFFFFFFFFFE) - b.l4
|
||||
return v.carryPropagate()
|
||||
}
|
||||
|
||||
// Negate sets v = -a, and returns v.
|
||||
func (v *Element) Negate(a *Element) *Element {
|
||||
return v.Subtract(feZero, a)
|
||||
}
|
||||
|
||||
// Invert sets v = 1/z mod p, and returns v.
|
||||
//
|
||||
// If z == 0, Invert returns v = 0.
|
||||
func (v *Element) Invert(z *Element) *Element {
|
||||
// Inversion is implemented as exponentiation with exponent p − 2. It uses the
|
||||
// same sequence of 255 squarings and 11 multiplications as [Curve25519].
|
||||
var z2, z9, z11, z2_5_0, z2_10_0, z2_20_0, z2_50_0, z2_100_0, t Element
|
||||
|
||||
z2.Square(z) // 2
|
||||
t.Square(&z2) // 4
|
||||
t.Square(&t) // 8
|
||||
z9.Multiply(&t, z) // 9
|
||||
z11.Multiply(&z9, &z2) // 11
|
||||
t.Square(&z11) // 22
|
||||
z2_5_0.Multiply(&t, &z9) // 31 = 2^5 - 2^0
|
||||
|
||||
t.Square(&z2_5_0) // 2^6 - 2^1
|
||||
for i := 0; i < 4; i++ {
|
||||
t.Square(&t) // 2^10 - 2^5
|
||||
}
|
||||
z2_10_0.Multiply(&t, &z2_5_0) // 2^10 - 2^0
|
||||
|
||||
t.Square(&z2_10_0) // 2^11 - 2^1
|
||||
for i := 0; i < 9; i++ {
|
||||
t.Square(&t) // 2^20 - 2^10
|
||||
}
|
||||
z2_20_0.Multiply(&t, &z2_10_0) // 2^20 - 2^0
|
||||
|
||||
t.Square(&z2_20_0) // 2^21 - 2^1
|
||||
for i := 0; i < 19; i++ {
|
||||
t.Square(&t) // 2^40 - 2^20
|
||||
}
|
||||
t.Multiply(&t, &z2_20_0) // 2^40 - 2^0
|
||||
|
||||
t.Square(&t) // 2^41 - 2^1
|
||||
for i := 0; i < 9; i++ {
|
||||
t.Square(&t) // 2^50 - 2^10
|
||||
}
|
||||
z2_50_0.Multiply(&t, &z2_10_0) // 2^50 - 2^0
|
||||
|
||||
t.Square(&z2_50_0) // 2^51 - 2^1
|
||||
for i := 0; i < 49; i++ {
|
||||
t.Square(&t) // 2^100 - 2^50
|
||||
}
|
||||
z2_100_0.Multiply(&t, &z2_50_0) // 2^100 - 2^0
|
||||
|
||||
t.Square(&z2_100_0) // 2^101 - 2^1
|
||||
for i := 0; i < 99; i++ {
|
||||
t.Square(&t) // 2^200 - 2^100
|
||||
}
|
||||
t.Multiply(&t, &z2_100_0) // 2^200 - 2^0
|
||||
|
||||
t.Square(&t) // 2^201 - 2^1
|
||||
for i := 0; i < 49; i++ {
|
||||
t.Square(&t) // 2^250 - 2^50
|
||||
}
|
||||
t.Multiply(&t, &z2_50_0) // 2^250 - 2^0
|
||||
|
||||
t.Square(&t) // 2^251 - 2^1
|
||||
t.Square(&t) // 2^252 - 2^2
|
||||
t.Square(&t) // 2^253 - 2^3
|
||||
t.Square(&t) // 2^254 - 2^4
|
||||
t.Square(&t) // 2^255 - 2^5
|
||||
|
||||
return v.Multiply(&t, &z11) // 2^255 - 21
|
||||
}
|
||||
|
||||
// Set sets v = a, and returns v.
|
||||
func (v *Element) Set(a *Element) *Element {
|
||||
*v = *a
|
||||
return v
|
||||
}
|
||||
|
||||
// SetBytes sets v to x, which must be a 32-byte little-endian encoding.
|
||||
//
|
||||
// Consistent with RFC 7748, the most significant bit (the high bit of the
|
||||
// last byte) is ignored, and non-canonical values (2^255-19 through 2^255-1)
|
||||
// are accepted. Note that this is laxer than specified by RFC 8032.
|
||||
func (v *Element) SetBytes(x []byte) *Element {
|
||||
if len(x) != 32 {
|
||||
panic("edwards25519: invalid field element input size")
|
||||
}
|
||||
|
||||
// Bits 0:51 (bytes 0:8, bits 0:64, shift 0, mask 51).
|
||||
v.l0 = binary.LittleEndian.Uint64(x[0:8])
|
||||
v.l0 &= maskLow51Bits
|
||||
// Bits 51:102 (bytes 6:14, bits 48:112, shift 3, mask 51).
|
||||
v.l1 = binary.LittleEndian.Uint64(x[6:14]) >> 3
|
||||
v.l1 &= maskLow51Bits
|
||||
// Bits 102:153 (bytes 12:20, bits 96:160, shift 6, mask 51).
|
||||
v.l2 = binary.LittleEndian.Uint64(x[12:20]) >> 6
|
||||
v.l2 &= maskLow51Bits
|
||||
// Bits 153:204 (bytes 19:27, bits 152:216, shift 1, mask 51).
|
||||
v.l3 = binary.LittleEndian.Uint64(x[19:27]) >> 1
|
||||
v.l3 &= maskLow51Bits
|
||||
// Bits 204:251 (bytes 24:32, bits 192:256, shift 12, mask 51).
|
||||
// Note: not bytes 25:33, shift 4, to avoid overread.
|
||||
v.l4 = binary.LittleEndian.Uint64(x[24:32]) >> 12
|
||||
v.l4 &= maskLow51Bits
|
||||
|
||||
return v
|
||||
}
|
||||
|
||||
// Bytes returns the canonical 32-byte little-endian encoding of v.
|
||||
func (v *Element) Bytes() []byte {
|
||||
// This function is outlined to make the allocations inline in the caller
|
||||
// rather than happen on the heap.
|
||||
var out [32]byte
|
||||
return v.bytes(&out)
|
||||
}
|
||||
|
||||
func (v *Element) bytes(out *[32]byte) []byte {
|
||||
t := *v
|
||||
t.reduce()
|
||||
|
||||
var buf [8]byte
|
||||
for i, l := range [5]uint64{t.l0, t.l1, t.l2, t.l3, t.l4} {
|
||||
bitsOffset := i * 51
|
||||
binary.LittleEndian.PutUint64(buf[:], l<<uint(bitsOffset%8))
|
||||
for i, bb := range buf {
|
||||
off := bitsOffset/8 + i
|
||||
if off >= len(out) {
|
||||
break
|
||||
}
|
||||
out[off] |= bb
|
||||
}
|
||||
}
|
||||
|
||||
return out[:]
|
||||
}
|
||||
|
||||
// Equal returns 1 if v and u are equal, and 0 otherwise.
|
||||
func (v *Element) Equal(u *Element) int {
|
||||
sa, sv := u.Bytes(), v.Bytes()
|
||||
return subtle.ConstantTimeCompare(sa, sv)
|
||||
}
|
||||
|
||||
// mask64Bits returns 0xffffffff if cond is 1, and 0 otherwise.
|
||||
func mask64Bits(cond int) uint64 { return ^(uint64(cond) - 1) }
|
||||
|
||||
// Select sets v to a if cond == 1, and to b if cond == 0.
|
||||
func (v *Element) Select(a, b *Element, cond int) *Element {
|
||||
m := mask64Bits(cond)
|
||||
v.l0 = (m & a.l0) | (^m & b.l0)
|
||||
v.l1 = (m & a.l1) | (^m & b.l1)
|
||||
v.l2 = (m & a.l2) | (^m & b.l2)
|
||||
v.l3 = (m & a.l3) | (^m & b.l3)
|
||||
v.l4 = (m & a.l4) | (^m & b.l4)
|
||||
return v
|
||||
}
|
||||
|
||||
// Swap swaps v and u if cond == 1 or leaves them unchanged if cond == 0, and returns v.
|
||||
func (v *Element) Swap(u *Element, cond int) {
|
||||
m := mask64Bits(cond)
|
||||
t := m & (v.l0 ^ u.l0)
|
||||
v.l0 ^= t
|
||||
u.l0 ^= t
|
||||
t = m & (v.l1 ^ u.l1)
|
||||
v.l1 ^= t
|
||||
u.l1 ^= t
|
||||
t = m & (v.l2 ^ u.l2)
|
||||
v.l2 ^= t
|
||||
u.l2 ^= t
|
||||
t = m & (v.l3 ^ u.l3)
|
||||
v.l3 ^= t
|
||||
u.l3 ^= t
|
||||
t = m & (v.l4 ^ u.l4)
|
||||
v.l4 ^= t
|
||||
u.l4 ^= t
|
||||
}
|
||||
|
||||
// IsNegative returns 1 if v is negative, and 0 otherwise.
|
||||
func (v *Element) IsNegative() int {
|
||||
return int(v.Bytes()[0] & 1)
|
||||
}
|
||||
|
||||
// Absolute sets v to |u|, and returns v.
|
||||
func (v *Element) Absolute(u *Element) *Element {
|
||||
return v.Select(new(Element).Negate(u), u, u.IsNegative())
|
||||
}
|
||||
|
||||
// Multiply sets v = x * y, and returns v.
|
||||
func (v *Element) Multiply(x, y *Element) *Element {
|
||||
feMul(v, x, y)
|
||||
return v
|
||||
}
|
||||
|
||||
// Square sets v = x * x, and returns v.
|
||||
func (v *Element) Square(x *Element) *Element {
|
||||
feSquare(v, x)
|
||||
return v
|
||||
}
|
||||
|
||||
// Mult32 sets v = x * y, and returns v.
|
||||
func (v *Element) Mult32(x *Element, y uint32) *Element {
|
||||
x0lo, x0hi := mul51(x.l0, y)
|
||||
x1lo, x1hi := mul51(x.l1, y)
|
||||
x2lo, x2hi := mul51(x.l2, y)
|
||||
x3lo, x3hi := mul51(x.l3, y)
|
||||
x4lo, x4hi := mul51(x.l4, y)
|
||||
v.l0 = x0lo + 19*x4hi // carried over per the reduction identity
|
||||
v.l1 = x1lo + x0hi
|
||||
v.l2 = x2lo + x1hi
|
||||
v.l3 = x3lo + x2hi
|
||||
v.l4 = x4lo + x3hi
|
||||
// The hi portions are going to be only 32 bits, plus any previous excess,
|
||||
// so we can skip the carry propagation.
|
||||
return v
|
||||
}
|
||||
|
||||
// mul51 returns lo + hi * 2⁵¹ = a * b.
|
||||
func mul51(a uint64, b uint32) (lo uint64, hi uint64) {
|
||||
mh, ml := bits.Mul64(a, uint64(b))
|
||||
lo = ml & maskLow51Bits
|
||||
hi = (mh << 13) | (ml >> 51)
|
||||
return
|
||||
}
|
||||
|
||||
// Pow22523 set v = x^((p-5)/8), and returns v. (p-5)/8 is 2^252-3.
|
||||
func (v *Element) Pow22523(x *Element) *Element {
|
||||
var t0, t1, t2 Element
|
||||
|
||||
t0.Square(x) // x^2
|
||||
t1.Square(&t0) // x^4
|
||||
t1.Square(&t1) // x^8
|
||||
t1.Multiply(x, &t1) // x^9
|
||||
t0.Multiply(&t0, &t1) // x^11
|
||||
t0.Square(&t0) // x^22
|
||||
t0.Multiply(&t1, &t0) // x^31
|
||||
t1.Square(&t0) // x^62
|
||||
for i := 1; i < 5; i++ { // x^992
|
||||
t1.Square(&t1)
|
||||
}
|
||||
t0.Multiply(&t1, &t0) // x^1023 -> 1023 = 2^10 - 1
|
||||
t1.Square(&t0) // 2^11 - 2
|
||||
for i := 1; i < 10; i++ { // 2^20 - 2^10
|
||||
t1.Square(&t1)
|
||||
}
|
||||
t1.Multiply(&t1, &t0) // 2^20 - 1
|
||||
t2.Square(&t1) // 2^21 - 2
|
||||
for i := 1; i < 20; i++ { // 2^40 - 2^20
|
||||
t2.Square(&t2)
|
||||
}
|
||||
t1.Multiply(&t2, &t1) // 2^40 - 1
|
||||
t1.Square(&t1) // 2^41 - 2
|
||||
for i := 1; i < 10; i++ { // 2^50 - 2^10
|
||||
t1.Square(&t1)
|
||||
}
|
||||
t0.Multiply(&t1, &t0) // 2^50 - 1
|
||||
t1.Square(&t0) // 2^51 - 2
|
||||
for i := 1; i < 50; i++ { // 2^100 - 2^50
|
||||
t1.Square(&t1)
|
||||
}
|
||||
t1.Multiply(&t1, &t0) // 2^100 - 1
|
||||
t2.Square(&t1) // 2^101 - 2
|
||||
for i := 1; i < 100; i++ { // 2^200 - 2^100
|
||||
t2.Square(&t2)
|
||||
}
|
||||
t1.Multiply(&t2, &t1) // 2^200 - 1
|
||||
t1.Square(&t1) // 2^201 - 2
|
||||
for i := 1; i < 50; i++ { // 2^250 - 2^50
|
||||
t1.Square(&t1)
|
||||
}
|
||||
t0.Multiply(&t1, &t0) // 2^250 - 1
|
||||
t0.Square(&t0) // 2^251 - 2
|
||||
t0.Square(&t0) // 2^252 - 4
|
||||
return v.Multiply(&t0, x) // 2^252 - 3 -> x^(2^252-3)
|
||||
}
|
||||
|
||||
// sqrtM1 is 2^((p-1)/4), which squared is equal to -1 by Euler's Criterion.
|
||||
var sqrtM1 = &Element{1718705420411056, 234908883556509,
|
||||
2233514472574048, 2117202627021982, 765476049583133}
|
||||
|
||||
// SqrtRatio sets r to the non-negative square root of the ratio of u and v.
|
||||
//
|
||||
// If u/v is square, SqrtRatio returns r and 1. If u/v is not square, SqrtRatio
|
||||
// sets r according to Section 4.3 of draft-irtf-cfrg-ristretto255-decaf448-00,
|
||||
// and returns r and 0.
|
||||
func (r *Element) SqrtRatio(u, v *Element) (rr *Element, wasSquare int) {
|
||||
var a, b Element
|
||||
|
||||
// r = (u * v3) * (u * v7)^((p-5)/8)
|
||||
v2 := a.Square(v)
|
||||
uv3 := b.Multiply(u, b.Multiply(v2, v))
|
||||
uv7 := a.Multiply(uv3, a.Square(v2))
|
||||
r.Multiply(uv3, r.Pow22523(uv7))
|
||||
|
||||
check := a.Multiply(v, a.Square(r)) // check = v * r^2
|
||||
|
||||
uNeg := b.Negate(u)
|
||||
correctSignSqrt := check.Equal(u)
|
||||
flippedSignSqrt := check.Equal(uNeg)
|
||||
flippedSignSqrtI := check.Equal(uNeg.Multiply(uNeg, sqrtM1))
|
||||
|
||||
rPrime := b.Multiply(r, sqrtM1) // r_prime = SQRT_M1 * r
|
||||
// r = CT_SELECT(r_prime IF flipped_sign_sqrt | flipped_sign_sqrt_i ELSE r)
|
||||
r.Select(rPrime, r, flippedSignSqrt|flippedSignSqrtI)
|
||||
|
||||
r.Absolute(r) // Choose the nonnegative square root.
|
||||
return r, correctSignSqrt | flippedSignSqrt
|
||||
}
|
|
@ -0,0 +1,13 @@
|
|||
// Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
|
||||
|
||||
// +build amd64,gc,!purego
|
||||
|
||||
package field
|
||||
|
||||
// feMul sets out = a * b. It works like feMulGeneric.
|
||||
//go:noescape
|
||||
func feMul(out *Element, a *Element, b *Element)
|
||||
|
||||
// feSquare sets out = a * a. It works like feSquareGeneric.
|
||||
//go:noescape
|
||||
func feSquare(out *Element, a *Element)
|
|
@ -0,0 +1,379 @@
|
|||
// Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
|
||||
|
||||
//go:build amd64 && gc && !purego
|
||||
// +build amd64,gc,!purego
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// func feMul(out *Element, a *Element, b *Element)
|
||||
TEXT ·feMul(SB), NOSPLIT, $0-24
|
||||
MOVQ a+8(FP), CX
|
||||
MOVQ b+16(FP), BX
|
||||
|
||||
// r0 = a0×b0
|
||||
MOVQ (CX), AX
|
||||
MULQ (BX)
|
||||
MOVQ AX, DI
|
||||
MOVQ DX, SI
|
||||
|
||||
// r0 += 19×a1×b4
|
||||
MOVQ 8(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 32(BX)
|
||||
ADDQ AX, DI
|
||||
ADCQ DX, SI
|
||||
|
||||
// r0 += 19×a2×b3
|
||||
MOVQ 16(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 24(BX)
|
||||
ADDQ AX, DI
|
||||
ADCQ DX, SI
|
||||
|
||||
// r0 += 19×a3×b2
|
||||
MOVQ 24(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 16(BX)
|
||||
ADDQ AX, DI
|
||||
ADCQ DX, SI
|
||||
|
||||
// r0 += 19×a4×b1
|
||||
MOVQ 32(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 8(BX)
|
||||
ADDQ AX, DI
|
||||
ADCQ DX, SI
|
||||
|
||||
// r1 = a0×b1
|
||||
MOVQ (CX), AX
|
||||
MULQ 8(BX)
|
||||
MOVQ AX, R9
|
||||
MOVQ DX, R8
|
||||
|
||||
// r1 += a1×b0
|
||||
MOVQ 8(CX), AX
|
||||
MULQ (BX)
|
||||
ADDQ AX, R9
|
||||
ADCQ DX, R8
|
||||
|
||||
// r1 += 19×a2×b4
|
||||
MOVQ 16(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 32(BX)
|
||||
ADDQ AX, R9
|
||||
ADCQ DX, R8
|
||||
|
||||
// r1 += 19×a3×b3
|
||||
MOVQ 24(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 24(BX)
|
||||
ADDQ AX, R9
|
||||
ADCQ DX, R8
|
||||
|
||||
// r1 += 19×a4×b2
|
||||
MOVQ 32(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 16(BX)
|
||||
ADDQ AX, R9
|
||||
ADCQ DX, R8
|
||||
|
||||
// r2 = a0×b2
|
||||
MOVQ (CX), AX
|
||||
MULQ 16(BX)
|
||||
MOVQ AX, R11
|
||||
MOVQ DX, R10
|
||||
|
||||
// r2 += a1×b1
|
||||
MOVQ 8(CX), AX
|
||||
MULQ 8(BX)
|
||||
ADDQ AX, R11
|
||||
ADCQ DX, R10
|
||||
|
||||
// r2 += a2×b0
|
||||
MOVQ 16(CX), AX
|
||||
MULQ (BX)
|
||||
ADDQ AX, R11
|
||||
ADCQ DX, R10
|
||||
|
||||
// r2 += 19×a3×b4
|
||||
MOVQ 24(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 32(BX)
|
||||
ADDQ AX, R11
|
||||
ADCQ DX, R10
|
||||
|
||||
// r2 += 19×a4×b3
|
||||
MOVQ 32(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 24(BX)
|
||||
ADDQ AX, R11
|
||||
ADCQ DX, R10
|
||||
|
||||
// r3 = a0×b3
|
||||
MOVQ (CX), AX
|
||||
MULQ 24(BX)
|
||||
MOVQ AX, R13
|
||||
MOVQ DX, R12
|
||||
|
||||
// r3 += a1×b2
|
||||
MOVQ 8(CX), AX
|
||||
MULQ 16(BX)
|
||||
ADDQ AX, R13
|
||||
ADCQ DX, R12
|
||||
|
||||
// r3 += a2×b1
|
||||
MOVQ 16(CX), AX
|
||||
MULQ 8(BX)
|
||||
ADDQ AX, R13
|
||||
ADCQ DX, R12
|
||||
|
||||
// r3 += a3×b0
|
||||
MOVQ 24(CX), AX
|
||||
MULQ (BX)
|
||||
ADDQ AX, R13
|
||||
ADCQ DX, R12
|
||||
|
||||
// r3 += 19×a4×b4
|
||||
MOVQ 32(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 32(BX)
|
||||
ADDQ AX, R13
|
||||
ADCQ DX, R12
|
||||
|
||||
// r4 = a0×b4
|
||||
MOVQ (CX), AX
|
||||
MULQ 32(BX)
|
||||
MOVQ AX, R15
|
||||
MOVQ DX, R14
|
||||
|
||||
// r4 += a1×b3
|
||||
MOVQ 8(CX), AX
|
||||
MULQ 24(BX)
|
||||
ADDQ AX, R15
|
||||
ADCQ DX, R14
|
||||
|
||||
// r4 += a2×b2
|
||||
MOVQ 16(CX), AX
|
||||
MULQ 16(BX)
|
||||
ADDQ AX, R15
|
||||
ADCQ DX, R14
|
||||
|
||||
// r4 += a3×b1
|
||||
MOVQ 24(CX), AX
|
||||
MULQ 8(BX)
|
||||
ADDQ AX, R15
|
||||
ADCQ DX, R14
|
||||
|
||||
// r4 += a4×b0
|
||||
MOVQ 32(CX), AX
|
||||
MULQ (BX)
|
||||
ADDQ AX, R15
|
||||
ADCQ DX, R14
|
||||
|
||||
// First reduction chain
|
||||
MOVQ $0x0007ffffffffffff, AX
|
||||
SHLQ $0x0d, DI, SI
|
||||
SHLQ $0x0d, R9, R8
|
||||
SHLQ $0x0d, R11, R10
|
||||
SHLQ $0x0d, R13, R12
|
||||
SHLQ $0x0d, R15, R14
|
||||
ANDQ AX, DI
|
||||
IMUL3Q $0x13, R14, R14
|
||||
ADDQ R14, DI
|
||||
ANDQ AX, R9
|
||||
ADDQ SI, R9
|
||||
ANDQ AX, R11
|
||||
ADDQ R8, R11
|
||||
ANDQ AX, R13
|
||||
ADDQ R10, R13
|
||||
ANDQ AX, R15
|
||||
ADDQ R12, R15
|
||||
|
||||
// Second reduction chain (carryPropagate)
|
||||
MOVQ DI, SI
|
||||
SHRQ $0x33, SI
|
||||
MOVQ R9, R8
|
||||
SHRQ $0x33, R8
|
||||
MOVQ R11, R10
|
||||
SHRQ $0x33, R10
|
||||
MOVQ R13, R12
|
||||
SHRQ $0x33, R12
|
||||
MOVQ R15, R14
|
||||
SHRQ $0x33, R14
|
||||
ANDQ AX, DI
|
||||
IMUL3Q $0x13, R14, R14
|
||||
ADDQ R14, DI
|
||||
ANDQ AX, R9
|
||||
ADDQ SI, R9
|
||||
ANDQ AX, R11
|
||||
ADDQ R8, R11
|
||||
ANDQ AX, R13
|
||||
ADDQ R10, R13
|
||||
ANDQ AX, R15
|
||||
ADDQ R12, R15
|
||||
|
||||
// Store output
|
||||
MOVQ out+0(FP), AX
|
||||
MOVQ DI, (AX)
|
||||
MOVQ R9, 8(AX)
|
||||
MOVQ R11, 16(AX)
|
||||
MOVQ R13, 24(AX)
|
||||
MOVQ R15, 32(AX)
|
||||
RET
|
||||
|
||||
// func feSquare(out *Element, a *Element)
|
||||
TEXT ·feSquare(SB), NOSPLIT, $0-16
|
||||
MOVQ a+8(FP), CX
|
||||
|
||||
// r0 = l0×l0
|
||||
MOVQ (CX), AX
|
||||
MULQ (CX)
|
||||
MOVQ AX, SI
|
||||
MOVQ DX, BX
|
||||
|
||||
// r0 += 38×l1×l4
|
||||
MOVQ 8(CX), AX
|
||||
IMUL3Q $0x26, AX, AX
|
||||
MULQ 32(CX)
|
||||
ADDQ AX, SI
|
||||
ADCQ DX, BX
|
||||
|
||||
// r0 += 38×l2×l3
|
||||
MOVQ 16(CX), AX
|
||||
IMUL3Q $0x26, AX, AX
|
||||
MULQ 24(CX)
|
||||
ADDQ AX, SI
|
||||
ADCQ DX, BX
|
||||
|
||||
// r1 = 2×l0×l1
|
||||
MOVQ (CX), AX
|
||||
SHLQ $0x01, AX
|
||||
MULQ 8(CX)
|
||||
MOVQ AX, R8
|
||||
MOVQ DX, DI
|
||||
|
||||
// r1 += 38×l2×l4
|
||||
MOVQ 16(CX), AX
|
||||
IMUL3Q $0x26, AX, AX
|
||||
MULQ 32(CX)
|
||||
ADDQ AX, R8
|
||||
ADCQ DX, DI
|
||||
|
||||
// r1 += 19×l3×l3
|
||||
MOVQ 24(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 24(CX)
|
||||
ADDQ AX, R8
|
||||
ADCQ DX, DI
|
||||
|
||||
// r2 = 2×l0×l2
|
||||
MOVQ (CX), AX
|
||||
SHLQ $0x01, AX
|
||||
MULQ 16(CX)
|
||||
MOVQ AX, R10
|
||||
MOVQ DX, R9
|
||||
|
||||
// r2 += l1×l1
|
||||
MOVQ 8(CX), AX
|
||||
MULQ 8(CX)
|
||||
ADDQ AX, R10
|
||||
ADCQ DX, R9
|
||||
|
||||
// r2 += 38×l3×l4
|
||||
MOVQ 24(CX), AX
|
||||
IMUL3Q $0x26, AX, AX
|
||||
MULQ 32(CX)
|
||||
ADDQ AX, R10
|
||||
ADCQ DX, R9
|
||||
|
||||
// r3 = 2×l0×l3
|
||||
MOVQ (CX), AX
|
||||
SHLQ $0x01, AX
|
||||
MULQ 24(CX)
|
||||
MOVQ AX, R12
|
||||
MOVQ DX, R11
|
||||
|
||||
// r3 += 2×l1×l2
|
||||
MOVQ 8(CX), AX
|
||||
IMUL3Q $0x02, AX, AX
|
||||
MULQ 16(CX)
|
||||
ADDQ AX, R12
|
||||
ADCQ DX, R11
|
||||
|
||||
// r3 += 19×l4×l4
|
||||
MOVQ 32(CX), AX
|
||||
IMUL3Q $0x13, AX, AX
|
||||
MULQ 32(CX)
|
||||
ADDQ AX, R12
|
||||
ADCQ DX, R11
|
||||
|
||||
// r4 = 2×l0×l4
|
||||
MOVQ (CX), AX
|
||||
SHLQ $0x01, AX
|
||||
MULQ 32(CX)
|
||||
MOVQ AX, R14
|
||||
MOVQ DX, R13
|
||||
|
||||
// r4 += 2×l1×l3
|
||||
MOVQ 8(CX), AX
|
||||
IMUL3Q $0x02, AX, AX
|
||||
MULQ 24(CX)
|
||||
ADDQ AX, R14
|
||||
ADCQ DX, R13
|
||||
|
||||
// r4 += l2×l2
|
||||
MOVQ 16(CX), AX
|
||||
MULQ 16(CX)
|
||||
ADDQ AX, R14
|
||||
ADCQ DX, R13
|
||||
|
||||
// First reduction chain
|
||||
MOVQ $0x0007ffffffffffff, AX
|
||||
SHLQ $0x0d, SI, BX
|
||||
SHLQ $0x0d, R8, DI
|
||||
SHLQ $0x0d, R10, R9
|
||||
SHLQ $0x0d, R12, R11
|
||||
SHLQ $0x0d, R14, R13
|
||||
ANDQ AX, SI
|
||||
IMUL3Q $0x13, R13, R13
|
||||
ADDQ R13, SI
|
||||
ANDQ AX, R8
|
||||
ADDQ BX, R8
|
||||
ANDQ AX, R10
|
||||
ADDQ DI, R10
|
||||
ANDQ AX, R12
|
||||
ADDQ R9, R12
|
||||
ANDQ AX, R14
|
||||
ADDQ R11, R14
|
||||
|
||||
// Second reduction chain (carryPropagate)
|
||||
MOVQ SI, BX
|
||||
SHRQ $0x33, BX
|
||||
MOVQ R8, DI
|
||||
SHRQ $0x33, DI
|
||||
MOVQ R10, R9
|
||||
SHRQ $0x33, R9
|
||||
MOVQ R12, R11
|
||||
SHRQ $0x33, R11
|
||||
MOVQ R14, R13
|
||||
SHRQ $0x33, R13
|
||||
ANDQ AX, SI
|
||||
IMUL3Q $0x13, R13, R13
|
||||
ADDQ R13, SI
|
||||
ANDQ AX, R8
|
||||
ADDQ BX, R8
|
||||
ANDQ AX, R10
|
||||
ADDQ DI, R10
|
||||
ANDQ AX, R12
|
||||
ADDQ R9, R12
|
||||
ANDQ AX, R14
|
||||
ADDQ R11, R14
|
||||
|
||||
// Store output
|
||||
MOVQ out+0(FP), AX
|
||||
MOVQ SI, (AX)
|
||||
MOVQ R8, 8(AX)
|
||||
MOVQ R10, 16(AX)
|
||||
MOVQ R12, 24(AX)
|
||||
MOVQ R14, 32(AX)
|
||||
RET
|
12
vendor/golang.org/x/crypto/curve25519/internal/field/fe_amd64_noasm.go
generated
vendored
Normal file
12
vendor/golang.org/x/crypto/curve25519/internal/field/fe_amd64_noasm.go
generated
vendored
Normal file
|
@ -0,0 +1,12 @@
|
|||
// Copyright (c) 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build !amd64 || !gc || purego
|
||||
// +build !amd64 !gc purego
|
||||
|
||||
package field
|
||||
|
||||
func feMul(v, x, y *Element) { feMulGeneric(v, x, y) }
|
||||
|
||||
func feSquare(v, x *Element) { feSquareGeneric(v, x) }
|
|
@ -0,0 +1,16 @@
|
|||
// Copyright (c) 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build arm64 && gc && !purego
|
||||
// +build arm64,gc,!purego
|
||||
|
||||
package field
|
||||
|
||||
//go:noescape
|
||||
func carryPropagate(v *Element)
|
||||
|
||||
func (v *Element) carryPropagate() *Element {
|
||||
carryPropagate(v)
|
||||
return v
|
||||
}
|
|
@ -0,0 +1,43 @@
|
|||
// Copyright (c) 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build arm64 && gc && !purego
|
||||
// +build arm64,gc,!purego
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// carryPropagate works exactly like carryPropagateGeneric and uses the
|
||||
// same AND, ADD, and LSR+MADD instructions emitted by the compiler, but
|
||||
// avoids loading R0-R4 twice and uses LDP and STP.
|
||||
//
|
||||
// See https://golang.org/issues/43145 for the main compiler issue.
|
||||
//
|
||||
// func carryPropagate(v *Element)
|
||||
TEXT ·carryPropagate(SB),NOFRAME|NOSPLIT,$0-8
|
||||
MOVD v+0(FP), R20
|
||||
|
||||
LDP 0(R20), (R0, R1)
|
||||
LDP 16(R20), (R2, R3)
|
||||
MOVD 32(R20), R4
|
||||
|
||||
AND $0x7ffffffffffff, R0, R10
|
||||
AND $0x7ffffffffffff, R1, R11
|
||||
AND $0x7ffffffffffff, R2, R12
|
||||
AND $0x7ffffffffffff, R3, R13
|
||||
AND $0x7ffffffffffff, R4, R14
|
||||
|
||||
ADD R0>>51, R11, R11
|
||||
ADD R1>>51, R12, R12
|
||||
ADD R2>>51, R13, R13
|
||||
ADD R3>>51, R14, R14
|
||||
// R4>>51 * 19 + R10 -> R10
|
||||
LSR $51, R4, R21
|
||||
MOVD $19, R22
|
||||
MADD R22, R10, R21, R10
|
||||
|
||||
STP (R10, R11), 0(R20)
|
||||
STP (R12, R13), 16(R20)
|
||||
MOVD R14, 32(R20)
|
||||
|
||||
RET
|
12
vendor/golang.org/x/crypto/curve25519/internal/field/fe_arm64_noasm.go
generated
vendored
Normal file
12
vendor/golang.org/x/crypto/curve25519/internal/field/fe_arm64_noasm.go
generated
vendored
Normal file
|
@ -0,0 +1,12 @@
|
|||
// Copyright (c) 2021 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.
|
||||
|
||||
//go:build !arm64 || !gc || purego
|
||||
// +build !arm64 !gc purego
|
||||
|
||||
package field
|
||||
|
||||
func (v *Element) carryPropagate() *Element {
|
||||
return v.carryPropagateGeneric()
|
||||
}
|
264
vendor/golang.org/x/crypto/curve25519/internal/field/fe_generic.go
generated
vendored
Normal file
264
vendor/golang.org/x/crypto/curve25519/internal/field/fe_generic.go
generated
vendored
Normal file
|
@ -0,0 +1,264 @@
|
|||
// Copyright (c) 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package field
|
||||
|
||||
import "math/bits"
|
||||
|
||||
// uint128 holds a 128-bit number as two 64-bit limbs, for use with the
|
||||
// bits.Mul64 and bits.Add64 intrinsics.
|
||||
type uint128 struct {
|
||||
lo, hi uint64
|
||||
}
|
||||
|
||||
// mul64 returns a * b.
|
||||
func mul64(a, b uint64) uint128 {
|
||||
hi, lo := bits.Mul64(a, b)
|
||||
return uint128{lo, hi}
|
||||
}
|
||||
|
||||
// addMul64 returns v + a * b.
|
||||
func addMul64(v uint128, a, b uint64) uint128 {
|
||||
hi, lo := bits.Mul64(a, b)
|
||||
lo, c := bits.Add64(lo, v.lo, 0)
|
||||
hi, _ = bits.Add64(hi, v.hi, c)
|
||||
return uint128{lo, hi}
|
||||
}
|
||||
|
||||
// shiftRightBy51 returns a >> 51. a is assumed to be at most 115 bits.
|
||||
func shiftRightBy51(a uint128) uint64 {
|
||||
return (a.hi << (64 - 51)) | (a.lo >> 51)
|
||||
}
|
||||
|
||||
func feMulGeneric(v, a, b *Element) {
|
||||
a0 := a.l0
|
||||
a1 := a.l1
|
||||
a2 := a.l2
|
||||
a3 := a.l3
|
||||
a4 := a.l4
|
||||
|
||||
b0 := b.l0
|
||||
b1 := b.l1
|
||||
b2 := b.l2
|
||||
b3 := b.l3
|
||||
b4 := b.l4
|
||||
|
||||
// Limb multiplication works like pen-and-paper columnar multiplication, but
|
||||
// with 51-bit limbs instead of digits.
|
||||
//
|
||||
// a4 a3 a2 a1 a0 x
|
||||
// b4 b3 b2 b1 b0 =
|
||||
// ------------------------
|
||||
// a4b0 a3b0 a2b0 a1b0 a0b0 +
|
||||
// a4b1 a3b1 a2b1 a1b1 a0b1 +
|
||||
// a4b2 a3b2 a2b2 a1b2 a0b2 +
|
||||
// a4b3 a3b3 a2b3 a1b3 a0b3 +
|
||||
// a4b4 a3b4 a2b4 a1b4 a0b4 =
|
||||
// ----------------------------------------------
|
||||
// r8 r7 r6 r5 r4 r3 r2 r1 r0
|
||||
//
|
||||
// We can then use the reduction identity (a * 2²⁵⁵ + b = a * 19 + b) to
|
||||
// reduce the limbs that would overflow 255 bits. r5 * 2²⁵⁵ becomes 19 * r5,
|
||||
// r6 * 2³⁰⁶ becomes 19 * r6 * 2⁵¹, etc.
|
||||
//
|
||||
// Reduction can be carried out simultaneously to multiplication. For
|
||||
// example, we do not compute r5: whenever the result of a multiplication
|
||||
// belongs to r5, like a1b4, we multiply it by 19 and add the result to r0.
|
||||
//
|
||||
// a4b0 a3b0 a2b0 a1b0 a0b0 +
|
||||
// a3b1 a2b1 a1b1 a0b1 19×a4b1 +
|
||||
// a2b2 a1b2 a0b2 19×a4b2 19×a3b2 +
|
||||
// a1b3 a0b3 19×a4b3 19×a3b3 19×a2b3 +
|
||||
// a0b4 19×a4b4 19×a3b4 19×a2b4 19×a1b4 =
|
||||
// --------------------------------------
|
||||
// r4 r3 r2 r1 r0
|
||||
//
|
||||
// Finally we add up the columns into wide, overlapping limbs.
|
||||
|
||||
a1_19 := a1 * 19
|
||||
a2_19 := a2 * 19
|
||||
a3_19 := a3 * 19
|
||||
a4_19 := a4 * 19
|
||||
|
||||
// r0 = a0×b0 + 19×(a1×b4 + a2×b3 + a3×b2 + a4×b1)
|
||||
r0 := mul64(a0, b0)
|
||||
r0 = addMul64(r0, a1_19, b4)
|
||||
r0 = addMul64(r0, a2_19, b3)
|
||||
r0 = addMul64(r0, a3_19, b2)
|
||||
r0 = addMul64(r0, a4_19, b1)
|
||||
|
||||
// r1 = a0×b1 + a1×b0 + 19×(a2×b4 + a3×b3 + a4×b2)
|
||||
r1 := mul64(a0, b1)
|
||||
r1 = addMul64(r1, a1, b0)
|
||||
r1 = addMul64(r1, a2_19, b4)
|
||||
r1 = addMul64(r1, a3_19, b3)
|
||||
r1 = addMul64(r1, a4_19, b2)
|
||||
|
||||
// r2 = a0×b2 + a1×b1 + a2×b0 + 19×(a3×b4 + a4×b3)
|
||||
r2 := mul64(a0, b2)
|
||||
r2 = addMul64(r2, a1, b1)
|
||||
r2 = addMul64(r2, a2, b0)
|
||||
r2 = addMul64(r2, a3_19, b4)
|
||||
r2 = addMul64(r2, a4_19, b3)
|
||||
|
||||
// r3 = a0×b3 + a1×b2 + a2×b1 + a3×b0 + 19×a4×b4
|
||||
r3 := mul64(a0, b3)
|
||||
r3 = addMul64(r3, a1, b2)
|
||||
r3 = addMul64(r3, a2, b1)
|
||||
r3 = addMul64(r3, a3, b0)
|
||||
r3 = addMul64(r3, a4_19, b4)
|
||||
|
||||
// r4 = a0×b4 + a1×b3 + a2×b2 + a3×b1 + a4×b0
|
||||
r4 := mul64(a0, b4)
|
||||
r4 = addMul64(r4, a1, b3)
|
||||
r4 = addMul64(r4, a2, b2)
|
||||
r4 = addMul64(r4, a3, b1)
|
||||
r4 = addMul64(r4, a4, b0)
|
||||
|
||||
// After the multiplication, we need to reduce (carry) the five coefficients
|
||||
// to obtain a result with limbs that are at most slightly larger than 2⁵¹,
|
||||
// to respect the Element invariant.
|
||||
//
|
||||
// Overall, the reduction works the same as carryPropagate, except with
|
||||
// wider inputs: we take the carry for each coefficient by shifting it right
|
||||
// by 51, and add it to the limb above it. The top carry is multiplied by 19
|
||||
// according to the reduction identity and added to the lowest limb.
|
||||
//
|
||||
// The largest coefficient (r0) will be at most 111 bits, which guarantees
|
||||
// that all carries are at most 111 - 51 = 60 bits, which fits in a uint64.
|
||||
//
|
||||
// r0 = a0×b0 + 19×(a1×b4 + a2×b3 + a3×b2 + a4×b1)
|
||||
// r0 < 2⁵²×2⁵² + 19×(2⁵²×2⁵² + 2⁵²×2⁵² + 2⁵²×2⁵² + 2⁵²×2⁵²)
|
||||
// r0 < (1 + 19 × 4) × 2⁵² × 2⁵²
|
||||
// r0 < 2⁷ × 2⁵² × 2⁵²
|
||||
// r0 < 2¹¹¹
|
||||
//
|
||||
// Moreover, the top coefficient (r4) is at most 107 bits, so c4 is at most
|
||||
// 56 bits, and c4 * 19 is at most 61 bits, which again fits in a uint64 and
|
||||
// allows us to easily apply the reduction identity.
|
||||
//
|
||||
// r4 = a0×b4 + a1×b3 + a2×b2 + a3×b1 + a4×b0
|
||||
// r4 < 5 × 2⁵² × 2⁵²
|
||||
// r4 < 2¹⁰⁷
|
||||
//
|
||||
|
||||
c0 := shiftRightBy51(r0)
|
||||
c1 := shiftRightBy51(r1)
|
||||
c2 := shiftRightBy51(r2)
|
||||
c3 := shiftRightBy51(r3)
|
||||
c4 := shiftRightBy51(r4)
|
||||
|
||||
rr0 := r0.lo&maskLow51Bits + c4*19
|
||||
rr1 := r1.lo&maskLow51Bits + c0
|
||||
rr2 := r2.lo&maskLow51Bits + c1
|
||||
rr3 := r3.lo&maskLow51Bits + c2
|
||||
rr4 := r4.lo&maskLow51Bits + c3
|
||||
|
||||
// Now all coefficients fit into 64-bit registers but are still too large to
|
||||
// be passed around as a Element. We therefore do one last carry chain,
|
||||
// where the carries will be small enough to fit in the wiggle room above 2⁵¹.
|
||||
*v = Element{rr0, rr1, rr2, rr3, rr4}
|
||||
v.carryPropagate()
|
||||
}
|
||||
|
||||
func feSquareGeneric(v, a *Element) {
|
||||
l0 := a.l0
|
||||
l1 := a.l1
|
||||
l2 := a.l2
|
||||
l3 := a.l3
|
||||
l4 := a.l4
|
||||
|
||||
// Squaring works precisely like multiplication above, but thanks to its
|
||||
// symmetry we get to group a few terms together.
|
||||
//
|
||||
// l4 l3 l2 l1 l0 x
|
||||
// l4 l3 l2 l1 l0 =
|
||||
// ------------------------
|
||||
// l4l0 l3l0 l2l0 l1l0 l0l0 +
|
||||
// l4l1 l3l1 l2l1 l1l1 l0l1 +
|
||||
// l4l2 l3l2 l2l2 l1l2 l0l2 +
|
||||
// l4l3 l3l3 l2l3 l1l3 l0l3 +
|
||||
// l4l4 l3l4 l2l4 l1l4 l0l4 =
|
||||
// ----------------------------------------------
|
||||
// r8 r7 r6 r5 r4 r3 r2 r1 r0
|
||||
//
|
||||
// l4l0 l3l0 l2l0 l1l0 l0l0 +
|
||||
// l3l1 l2l1 l1l1 l0l1 19×l4l1 +
|
||||
// l2l2 l1l2 l0l2 19×l4l2 19×l3l2 +
|
||||
// l1l3 l0l3 19×l4l3 19×l3l3 19×l2l3 +
|
||||
// l0l4 19×l4l4 19×l3l4 19×l2l4 19×l1l4 =
|
||||
// --------------------------------------
|
||||
// r4 r3 r2 r1 r0
|
||||
//
|
||||
// With precomputed 2×, 19×, and 2×19× terms, we can compute each limb with
|
||||
// only three Mul64 and four Add64, instead of five and eight.
|
||||
|
||||
l0_2 := l0 * 2
|
||||
l1_2 := l1 * 2
|
||||
|
||||
l1_38 := l1 * 38
|
||||
l2_38 := l2 * 38
|
||||
l3_38 := l3 * 38
|
||||
|
||||
l3_19 := l3 * 19
|
||||
l4_19 := l4 * 19
|
||||
|
||||
// r0 = l0×l0 + 19×(l1×l4 + l2×l3 + l3×l2 + l4×l1) = l0×l0 + 19×2×(l1×l4 + l2×l3)
|
||||
r0 := mul64(l0, l0)
|
||||
r0 = addMul64(r0, l1_38, l4)
|
||||
r0 = addMul64(r0, l2_38, l3)
|
||||
|
||||
// r1 = l0×l1 + l1×l0 + 19×(l2×l4 + l3×l3 + l4×l2) = 2×l0×l1 + 19×2×l2×l4 + 19×l3×l3
|
||||
r1 := mul64(l0_2, l1)
|
||||
r1 = addMul64(r1, l2_38, l4)
|
||||
r1 = addMul64(r1, l3_19, l3)
|
||||
|
||||
// r2 = l0×l2 + l1×l1 + l2×l0 + 19×(l3×l4 + l4×l3) = 2×l0×l2 + l1×l1 + 19×2×l3×l4
|
||||
r2 := mul64(l0_2, l2)
|
||||
r2 = addMul64(r2, l1, l1)
|
||||
r2 = addMul64(r2, l3_38, l4)
|
||||
|
||||
// r3 = l0×l3 + l1×l2 + l2×l1 + l3×l0 + 19×l4×l4 = 2×l0×l3 + 2×l1×l2 + 19×l4×l4
|
||||
r3 := mul64(l0_2, l3)
|
||||
r3 = addMul64(r3, l1_2, l2)
|
||||
r3 = addMul64(r3, l4_19, l4)
|
||||
|
||||
// r4 = l0×l4 + l1×l3 + l2×l2 + l3×l1 + l4×l0 = 2×l0×l4 + 2×l1×l3 + l2×l2
|
||||
r4 := mul64(l0_2, l4)
|
||||
r4 = addMul64(r4, l1_2, l3)
|
||||
r4 = addMul64(r4, l2, l2)
|
||||
|
||||
c0 := shiftRightBy51(r0)
|
||||
c1 := shiftRightBy51(r1)
|
||||
c2 := shiftRightBy51(r2)
|
||||
c3 := shiftRightBy51(r3)
|
||||
c4 := shiftRightBy51(r4)
|
||||
|
||||
rr0 := r0.lo&maskLow51Bits + c4*19
|
||||
rr1 := r1.lo&maskLow51Bits + c0
|
||||
rr2 := r2.lo&maskLow51Bits + c1
|
||||
rr3 := r3.lo&maskLow51Bits + c2
|
||||
rr4 := r4.lo&maskLow51Bits + c3
|
||||
|
||||
*v = Element{rr0, rr1, rr2, rr3, rr4}
|
||||
v.carryPropagate()
|
||||
}
|
||||
|
||||
// carryPropagate brings the limbs below 52 bits by applying the reduction
|
||||
// identity (a * 2²⁵⁵ + b = a * 19 + b) to the l4 carry. TODO inline
|
||||
func (v *Element) carryPropagateGeneric() *Element {
|
||||
c0 := v.l0 >> 51
|
||||
c1 := v.l1 >> 51
|
||||
c2 := v.l2 >> 51
|
||||
c3 := v.l3 >> 51
|
||||
c4 := v.l4 >> 51
|
||||
|
||||
v.l0 = v.l0&maskLow51Bits + c4*19
|
||||
v.l1 = v.l1&maskLow51Bits + c0
|
||||
v.l2 = v.l2&maskLow51Bits + c1
|
||||
v.l3 = v.l3&maskLow51Bits + c2
|
||||
v.l4 = v.l4&maskLow51Bits + c3
|
||||
|
||||
return v
|
||||
}
|
1
vendor/golang.org/x/crypto/curve25519/internal/field/sync.checkpoint
generated
vendored
Normal file
1
vendor/golang.org/x/crypto/curve25519/internal/field/sync.checkpoint
generated
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
b0c49ae9f59d233526f8934262c5bbbe14d4358d
|
|
@ -0,0 +1,19 @@
|
|||
#! /bin/bash
|
||||
set -euo pipefail
|
||||
|
||||
cd "$(git rev-parse --show-toplevel)"
|
||||
|
||||
STD_PATH=src/crypto/ed25519/internal/edwards25519/field
|
||||
LOCAL_PATH=curve25519/internal/field
|
||||
LAST_SYNC_REF=$(cat $LOCAL_PATH/sync.checkpoint)
|
||||
|
||||
git fetch https://go.googlesource.com/go master
|
||||
|
||||
if git diff --quiet $LAST_SYNC_REF:$STD_PATH FETCH_HEAD:$STD_PATH; then
|
||||
echo "No changes."
|
||||
else
|
||||
NEW_REF=$(git rev-parse FETCH_HEAD | tee $LOCAL_PATH/sync.checkpoint)
|
||||
echo "Applying changes from $LAST_SYNC_REF to $NEW_REF..."
|
||||
git diff $LAST_SYNC_REF:$STD_PATH FETCH_HEAD:$STD_PATH | \
|
||||
git apply -3 --directory=$LOCAL_PATH
|
||||
fi
|
|
@ -5,6 +5,7 @@
|
|||
// In Go 1.13, the ed25519 package was promoted to the standard library as
|
||||
// crypto/ed25519, and this package became a wrapper for the standard library one.
|
||||
//
|
||||
//go:build !go1.13
|
||||
// +build !go1.13
|
||||
|
||||
// Package ed25519 implements the Ed25519 signature algorithm. See
|
||||
|
|
|
@ -2,6 +2,7 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build go1.13
|
||||
// +build go1.13
|
||||
|
||||
// Package ed25519 implements the Ed25519 signature algorithm. See
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !appengine
|
||||
//go:build !purego
|
||||
// +build !purego
|
||||
|
||||
// Package subtle implements functions that are often useful in cryptographic
|
||||
// code but require careful thought to use correctly.
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build appengine
|
||||
//go:build purego
|
||||
// +build purego
|
||||
|
||||
// Package subtle implements functions that are often useful in cryptographic
|
||||
// code but require careful thought to use correctly.
|
|
@ -2,6 +2,7 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build !go1.13
|
||||
// +build !go1.13
|
||||
|
||||
package poly1305
|
||||
|
|
|
@ -2,6 +2,7 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:build go1.13
|
||||
// +build go1.13
|
||||
|
||||
package poly1305
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !amd64,!ppc64le,!s390x gccgo purego
|
||||
//go:build (!amd64 && !ppc64le && !s390x) || !gc || purego
|
||||
// +build !amd64,!ppc64le,!s390x !gc purego
|
||||
|
||||
package poly1305
|
||||
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !gccgo,!purego
|
||||
//go:build gc && !purego
|
||||
// +build gc,!purego
|
||||
|
||||
package poly1305
|
||||
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !gccgo,!purego
|
||||
//go:build gc && !purego
|
||||
// +build gc,!purego
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !gccgo,!purego
|
||||
//go:build gc && !purego
|
||||
// +build gc,!purego
|
||||
|
||||
package poly1305
|
||||
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !gccgo,!purego
|
||||
//go:build gc && !purego
|
||||
// +build gc,!purego
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
|
@ -82,7 +83,7 @@ multiply:
|
|||
BGE loop
|
||||
|
||||
bytes_between_0_and_15:
|
||||
CMP $0, R5
|
||||
CMP R5, $0
|
||||
BEQ done
|
||||
MOVD $0, R16 // h0
|
||||
MOVD $0, R17 // h1
|
||||
|
@ -122,7 +123,7 @@ just1:
|
|||
// Exactly 8
|
||||
MOVD (R4), R16
|
||||
|
||||
CMP $0, R17
|
||||
CMP R17, $0
|
||||
|
||||
// Check if we've already set R17; if not
|
||||
// set 1 to indicate end of msg.
|
||||
|
@ -151,7 +152,7 @@ less4:
|
|||
ADD $2, R4
|
||||
|
||||
less2:
|
||||
CMP $0, R5
|
||||
CMP R5, $0
|
||||
BEQ insert1
|
||||
MOVBZ (R4), R21
|
||||
SLD R22, R21, R21
|
||||
|
@ -166,12 +167,12 @@ insert1:
|
|||
|
||||
carry:
|
||||
// Add new values to h0, h1, h2
|
||||
ADDC R16, R8
|
||||
ADDE R17, R9
|
||||
ADDE $0, R10
|
||||
MOVD $16, R5
|
||||
ADD R5, R4
|
||||
BR multiply
|
||||
ADDC R16, R8
|
||||
ADDE R17, R9
|
||||
ADDZE R10, R10
|
||||
MOVD $16, R5
|
||||
ADD R5, R4
|
||||
BR multiply
|
||||
|
||||
done:
|
||||
// Save h0, h1, h2 in state
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !gccgo,!purego
|
||||
//go:build gc && !purego
|
||||
// +build gc,!purego
|
||||
|
||||
package poly1305
|
||||
|
||||
|
|
|
@ -2,7 +2,8 @@
|
|||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !gccgo,!purego
|
||||
//go:build gc && !purego
|
||||
// +build gc,!purego
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
|
|
|
@ -77,7 +77,7 @@ func NewClientConn(c net.Conn, addr string, config *ClientConfig) (Conn, <-chan
|
|||
}
|
||||
|
||||
conn := &connection{
|
||||
sshConn: sshConn{conn: c},
|
||||
sshConn: sshConn{conn: c, user: fullConf.User},
|
||||
}
|
||||
|
||||
if err := conn.clientHandshake(addr, &fullConf); err != nil {
|
||||
|
|
|
@ -471,7 +471,7 @@ func (cb KeyboardInteractiveChallenge) auth(session []byte, user string, c packe
|
|||
}
|
||||
|
||||
if len(answers) != len(prompts) {
|
||||
return authFailure, nil, errors.New("ssh: not enough answers from keyboard-interactive callback")
|
||||
return authFailure, nil, fmt.Errorf("ssh: incorrect number of answers from keyboard-interactive callback %d (expected %d)", len(answers), len(prompts))
|
||||
}
|
||||
responseLength := 1 + 4
|
||||
for _, a := range answers {
|
||||
|
|
|
@ -572,6 +572,10 @@ userAuthLoop:
|
|||
perms = candidate.perms
|
||||
}
|
||||
case "gssapi-with-mic":
|
||||
if config.GSSAPIWithMICConfig == nil {
|
||||
authErr = errors.New("ssh: gssapi-with-mic auth not configured")
|
||||
break
|
||||
}
|
||||
gssapiConfig := config.GSSAPIWithMICConfig
|
||||
userAuthRequestGSSAPI, err := parseGSSAPIPayload(userAuthReq.Payload)
|
||||
if err != nil {
|
||||
|
|
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1,8 @@
|
|||
// Copyright 2014 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
TEXT ·use(SB),NOSPLIT,$0
|
||||
RET
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System call support for 386, Plan 9
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-32
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-44
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·seek(SB),NOSPLIT,$0-36
|
||||
JMP syscall·seek(SB)
|
||||
|
||||
TEXT ·exit(SB),NOSPLIT,$4-4
|
||||
JMP syscall·exit(SB)
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
//
|
||||
// System call support for amd64, Plan 9
|
||||
//
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-64
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-88
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·seek(SB),NOSPLIT,$0-56
|
||||
JMP syscall·seek(SB)
|
||||
|
||||
TEXT ·exit(SB),NOSPLIT,$8-8
|
||||
JMP syscall·exit(SB)
|
|
@ -0,0 +1,25 @@
|
|||
// Copyright 2009 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
// System call support for plan9 on arm
|
||||
|
||||
// Just jump to package syscall's implementation for all these functions.
|
||||
// The runtime may know about them.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-32
|
||||
JMP syscall·Syscall(SB)
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-44
|
||||
JMP syscall·Syscall6(SB)
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
||||
JMP syscall·RawSyscall(SB)
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
||||
JMP syscall·RawSyscall6(SB)
|
||||
|
||||
TEXT ·seek(SB),NOSPLIT,$0-36
|
||||
JMP syscall·exit(SB)
|
|
@ -0,0 +1,70 @@
|
|||
package plan9
|
||||
|
||||
// Plan 9 Constants
|
||||
|
||||
// Open modes
|
||||
const (
|
||||
O_RDONLY = 0
|
||||
O_WRONLY = 1
|
||||
O_RDWR = 2
|
||||
O_TRUNC = 16
|
||||
O_CLOEXEC = 32
|
||||
O_EXCL = 0x1000
|
||||
)
|
||||
|
||||
// Rfork flags
|
||||
const (
|
||||
RFNAMEG = 1 << 0
|
||||
RFENVG = 1 << 1
|
||||
RFFDG = 1 << 2
|
||||
RFNOTEG = 1 << 3
|
||||
RFPROC = 1 << 4
|
||||
RFMEM = 1 << 5
|
||||
RFNOWAIT = 1 << 6
|
||||
RFCNAMEG = 1 << 10
|
||||
RFCENVG = 1 << 11
|
||||
RFCFDG = 1 << 12
|
||||
RFREND = 1 << 13
|
||||
RFNOMNT = 1 << 14
|
||||
)
|
||||
|
||||
// Qid.Type bits
|
||||
const (
|
||||
QTDIR = 0x80
|
||||
QTAPPEND = 0x40
|
||||
QTEXCL = 0x20
|
||||
QTMOUNT = 0x10
|
||||
QTAUTH = 0x08
|
||||
QTTMP = 0x04
|
||||
QTFILE = 0x00
|
||||
)
|
||||
|
||||
// Dir.Mode bits
|
||||
const (
|
||||
DMDIR = 0x80000000
|
||||
DMAPPEND = 0x40000000
|
||||
DMEXCL = 0x20000000
|
||||
DMMOUNT = 0x10000000
|
||||
DMAUTH = 0x08000000
|
||||
DMTMP = 0x04000000
|
||||
DMREAD = 0x4
|
||||
DMWRITE = 0x2
|
||||
DMEXEC = 0x1
|
||||
)
|
||||
|
||||
const (
|
||||
STATMAX = 65535
|
||||
ERRMAX = 128
|
||||
STATFIXLEN = 49
|
||||
)
|
||||
|
||||
// Mount and bind flags
|
||||
const (
|
||||
MREPL = 0x0000
|
||||
MBEFORE = 0x0001
|
||||
MAFTER = 0x0002
|
||||
MORDER = 0x0003
|
||||
MCREATE = 0x0004
|
||||
MCACHE = 0x0010
|
||||
MMASK = 0x0017
|
||||
)
|
|
@ -0,0 +1,212 @@
|
|||
// 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.
|
||||
|
||||
// Plan 9 directory marshalling. See intro(5).
|
||||
|
||||
package plan9
|
||||
|
||||
import "errors"
|
||||
|
||||
var (
|
||||
ErrShortStat = errors.New("stat buffer too short")
|
||||
ErrBadStat = errors.New("malformed stat buffer")
|
||||
ErrBadName = errors.New("bad character in file name")
|
||||
)
|
||||
|
||||
// A Qid represents a 9P server's unique identification for a file.
|
||||
type Qid struct {
|
||||
Path uint64 // the file server's unique identification for the file
|
||||
Vers uint32 // version number for given Path
|
||||
Type uint8 // the type of the file (plan9.QTDIR for example)
|
||||
}
|
||||
|
||||
// A Dir contains the metadata for a file.
|
||||
type Dir struct {
|
||||
// system-modified data
|
||||
Type uint16 // server type
|
||||
Dev uint32 // server subtype
|
||||
|
||||
// file data
|
||||
Qid Qid // unique id from server
|
||||
Mode uint32 // permissions
|
||||
Atime uint32 // last read time
|
||||
Mtime uint32 // last write time
|
||||
Length int64 // file length
|
||||
Name string // last element of path
|
||||
Uid string // owner name
|
||||
Gid string // group name
|
||||
Muid string // last modifier name
|
||||
}
|
||||
|
||||
var nullDir = Dir{
|
||||
Type: ^uint16(0),
|
||||
Dev: ^uint32(0),
|
||||
Qid: Qid{
|
||||
Path: ^uint64(0),
|
||||
Vers: ^uint32(0),
|
||||
Type: ^uint8(0),
|
||||
},
|
||||
Mode: ^uint32(0),
|
||||
Atime: ^uint32(0),
|
||||
Mtime: ^uint32(0),
|
||||
Length: ^int64(0),
|
||||
}
|
||||
|
||||
// Null assigns special "don't touch" values to members of d to
|
||||
// avoid modifying them during plan9.Wstat.
|
||||
func (d *Dir) Null() { *d = nullDir }
|
||||
|
||||
// Marshal encodes a 9P stat message corresponding to d into b
|
||||
//
|
||||
// If there isn't enough space in b for a stat message, ErrShortStat is returned.
|
||||
func (d *Dir) Marshal(b []byte) (n int, err error) {
|
||||
n = STATFIXLEN + len(d.Name) + len(d.Uid) + len(d.Gid) + len(d.Muid)
|
||||
if n > len(b) {
|
||||
return n, ErrShortStat
|
||||
}
|
||||
|
||||
for _, c := range d.Name {
|
||||
if c == '/' {
|
||||
return n, ErrBadName
|
||||
}
|
||||
}
|
||||
|
||||
b = pbit16(b, uint16(n)-2)
|
||||
b = pbit16(b, d.Type)
|
||||
b = pbit32(b, d.Dev)
|
||||
b = pbit8(b, d.Qid.Type)
|
||||
b = pbit32(b, d.Qid.Vers)
|
||||
b = pbit64(b, d.Qid.Path)
|
||||
b = pbit32(b, d.Mode)
|
||||
b = pbit32(b, d.Atime)
|
||||
b = pbit32(b, d.Mtime)
|
||||
b = pbit64(b, uint64(d.Length))
|
||||
b = pstring(b, d.Name)
|
||||
b = pstring(b, d.Uid)
|
||||
b = pstring(b, d.Gid)
|
||||
b = pstring(b, d.Muid)
|
||||
|
||||
return n, nil
|
||||
}
|
||||
|
||||
// UnmarshalDir decodes a single 9P stat message from b and returns the resulting Dir.
|
||||
//
|
||||
// If b is too small to hold a valid stat message, ErrShortStat is returned.
|
||||
//
|
||||
// If the stat message itself is invalid, ErrBadStat is returned.
|
||||
func UnmarshalDir(b []byte) (*Dir, error) {
|
||||
if len(b) < STATFIXLEN {
|
||||
return nil, ErrShortStat
|
||||
}
|
||||
size, buf := gbit16(b)
|
||||
if len(b) != int(size)+2 {
|
||||
return nil, ErrBadStat
|
||||
}
|
||||
b = buf
|
||||
|
||||
var d Dir
|
||||
d.Type, b = gbit16(b)
|
||||
d.Dev, b = gbit32(b)
|
||||
d.Qid.Type, b = gbit8(b)
|
||||
d.Qid.Vers, b = gbit32(b)
|
||||
d.Qid.Path, b = gbit64(b)
|
||||
d.Mode, b = gbit32(b)
|
||||
d.Atime, b = gbit32(b)
|
||||
d.Mtime, b = gbit32(b)
|
||||
|
||||
n, b := gbit64(b)
|
||||
d.Length = int64(n)
|
||||
|
||||
var ok bool
|
||||
if d.Name, b, ok = gstring(b); !ok {
|
||||
return nil, ErrBadStat
|
||||
}
|
||||
if d.Uid, b, ok = gstring(b); !ok {
|
||||
return nil, ErrBadStat
|
||||
}
|
||||
if d.Gid, b, ok = gstring(b); !ok {
|
||||
return nil, ErrBadStat
|
||||
}
|
||||
if d.Muid, b, ok = gstring(b); !ok {
|
||||
return nil, ErrBadStat
|
||||
}
|
||||
|
||||
return &d, nil
|
||||
}
|
||||
|
||||
// pbit8 copies the 8-bit number v to b and returns the remaining slice of b.
|
||||
func pbit8(b []byte, v uint8) []byte {
|
||||
b[0] = byte(v)
|
||||
return b[1:]
|
||||
}
|
||||
|
||||
// pbit16 copies the 16-bit number v to b in little-endian order and returns the remaining slice of b.
|
||||
func pbit16(b []byte, v uint16) []byte {
|
||||
b[0] = byte(v)
|
||||
b[1] = byte(v >> 8)
|
||||
return b[2:]
|
||||
}
|
||||
|
||||
// pbit32 copies the 32-bit number v to b in little-endian order and returns the remaining slice of b.
|
||||
func pbit32(b []byte, v uint32) []byte {
|
||||
b[0] = byte(v)
|
||||
b[1] = byte(v >> 8)
|
||||
b[2] = byte(v >> 16)
|
||||
b[3] = byte(v >> 24)
|
||||
return b[4:]
|
||||
}
|
||||
|
||||
// pbit64 copies the 64-bit number v to b in little-endian order and returns the remaining slice of b.
|
||||
func pbit64(b []byte, v uint64) []byte {
|
||||
b[0] = byte(v)
|
||||
b[1] = byte(v >> 8)
|
||||
b[2] = byte(v >> 16)
|
||||
b[3] = byte(v >> 24)
|
||||
b[4] = byte(v >> 32)
|
||||
b[5] = byte(v >> 40)
|
||||
b[6] = byte(v >> 48)
|
||||
b[7] = byte(v >> 56)
|
||||
return b[8:]
|
||||
}
|
||||
|
||||
// pstring copies the string s to b, prepending it with a 16-bit length in little-endian order, and
|
||||
// returning the remaining slice of b..
|
||||
func pstring(b []byte, s string) []byte {
|
||||
b = pbit16(b, uint16(len(s)))
|
||||
n := copy(b, s)
|
||||
return b[n:]
|
||||
}
|
||||
|
||||
// gbit8 reads an 8-bit number from b and returns it with the remaining slice of b.
|
||||
func gbit8(b []byte) (uint8, []byte) {
|
||||
return uint8(b[0]), b[1:]
|
||||
}
|
||||
|
||||
// gbit16 reads a 16-bit number in little-endian order from b and returns it with the remaining slice of b.
|
||||
func gbit16(b []byte) (uint16, []byte) {
|
||||
return uint16(b[0]) | uint16(b[1])<<8, b[2:]
|
||||
}
|
||||
|
||||
// gbit32 reads a 32-bit number in little-endian order from b and returns it with the remaining slice of b.
|
||||
func gbit32(b []byte) (uint32, []byte) {
|
||||
return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24, b[4:]
|
||||
}
|
||||
|
||||
// gbit64 reads a 64-bit number in little-endian order from b and returns it with the remaining slice of b.
|
||||
func gbit64(b []byte) (uint64, []byte) {
|
||||
lo := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
|
||||
hi := uint32(b[4]) | uint32(b[5])<<8 | uint32(b[6])<<16 | uint32(b[7])<<24
|
||||
return uint64(lo) | uint64(hi)<<32, b[8:]
|
||||
}
|
||||
|
||||
// gstring reads a string from b, prefixed with a 16-bit length in little-endian order.
|
||||
// It returns the string with the remaining slice of b and a boolean. If the length is
|
||||
// greater than the number of bytes in b, the boolean will be false.
|
||||
func gstring(b []byte) (string, []byte, bool) {
|
||||
n, b := gbit16(b)
|
||||
if int(n) > len(b) {
|
||||
return "", b, false
|
||||
}
|
||||
return string(b[:n]), b[n:], true
|
||||
}
|
|
@ -0,0 +1,31 @@
|
|||
// Copyright 2011 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.
|
||||
|
||||
// Plan 9 environment variables.
|
||||
|
||||
package plan9
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
)
|
||||
|
||||
func Getenv(key string) (value string, found bool) {
|
||||
return syscall.Getenv(key)
|
||||
}
|
||||
|
||||
func Setenv(key, value string) error {
|
||||
return syscall.Setenv(key, value)
|
||||
}
|
||||
|
||||
func Clearenv() {
|
||||
syscall.Clearenv()
|
||||
}
|
||||
|
||||
func Environ() []string {
|
||||
return syscall.Environ()
|
||||
}
|
||||
|
||||
func Unsetenv(key string) error {
|
||||
return syscall.Unsetenv(key)
|
||||
}
|
|
@ -0,0 +1,50 @@
|
|||
// Copyright 2011 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 plan9
|
||||
|
||||
import "syscall"
|
||||
|
||||
// Constants
|
||||
const (
|
||||
// Invented values to support what package os expects.
|
||||
O_CREAT = 0x02000
|
||||
O_APPEND = 0x00400
|
||||
O_NOCTTY = 0x00000
|
||||
O_NONBLOCK = 0x00000
|
||||
O_SYNC = 0x00000
|
||||
O_ASYNC = 0x00000
|
||||
|
||||
S_IFMT = 0x1f000
|
||||
S_IFIFO = 0x1000
|
||||
S_IFCHR = 0x2000
|
||||
S_IFDIR = 0x4000
|
||||
S_IFBLK = 0x6000
|
||||
S_IFREG = 0x8000
|
||||
S_IFLNK = 0xa000
|
||||
S_IFSOCK = 0xc000
|
||||
)
|
||||
|
||||
// Errors
|
||||
var (
|
||||
EINVAL = syscall.NewError("bad arg in system call")
|
||||
ENOTDIR = syscall.NewError("not a directory")
|
||||
EISDIR = syscall.NewError("file is a directory")
|
||||
ENOENT = syscall.NewError("file does not exist")
|
||||
EEXIST = syscall.NewError("file already exists")
|
||||
EMFILE = syscall.NewError("no free file descriptors")
|
||||
EIO = syscall.NewError("i/o error")
|
||||
ENAMETOOLONG = syscall.NewError("file name too long")
|
||||
EINTR = syscall.NewError("interrupted")
|
||||
EPERM = syscall.NewError("permission denied")
|
||||
EBUSY = syscall.NewError("no free devices")
|
||||
ETIMEDOUT = syscall.NewError("connection timed out")
|
||||
EPLAN9 = syscall.NewError("not supported by plan 9")
|
||||
|
||||
// The following errors do not correspond to any
|
||||
// Plan 9 system messages. Invented to support
|
||||
// what package os and others expect.
|
||||
EACCES = syscall.NewError("access permission denied")
|
||||
EAFNOSUPPORT = syscall.NewError("address family not supported by protocol")
|
||||
)
|
|
@ -0,0 +1,150 @@
|
|||
#!/usr/bin/env bash
|
||||
# Copyright 2009 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.
|
||||
|
||||
# The plan9 package provides access to the raw system call
|
||||
# interface of the underlying operating system. Porting Go to
|
||||
# a new architecture/operating system combination requires
|
||||
# some manual effort, though there are tools that automate
|
||||
# much of the process. The auto-generated files have names
|
||||
# beginning with z.
|
||||
#
|
||||
# This script runs or (given -n) prints suggested commands to generate z files
|
||||
# for the current system. Running those commands is not automatic.
|
||||
# This script is documentation more than anything else.
|
||||
#
|
||||
# * asm_${GOOS}_${GOARCH}.s
|
||||
#
|
||||
# This hand-written assembly file implements system call dispatch.
|
||||
# There are three entry points:
|
||||
#
|
||||
# func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
|
||||
# func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
|
||||
# func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
|
||||
#
|
||||
# The first and second are the standard ones; they differ only in
|
||||
# how many arguments can be passed to the kernel.
|
||||
# The third is for low-level use by the ForkExec wrapper;
|
||||
# unlike the first two, it does not call into the scheduler to
|
||||
# let it know that a system call is running.
|
||||
#
|
||||
# * syscall_${GOOS}.go
|
||||
#
|
||||
# This hand-written Go file implements system calls that need
|
||||
# special handling and lists "//sys" comments giving prototypes
|
||||
# for ones that can be auto-generated. Mksyscall reads those
|
||||
# comments to generate the stubs.
|
||||
#
|
||||
# * syscall_${GOOS}_${GOARCH}.go
|
||||
#
|
||||
# Same as syscall_${GOOS}.go except that it contains code specific
|
||||
# to ${GOOS} on one particular architecture.
|
||||
#
|
||||
# * types_${GOOS}.c
|
||||
#
|
||||
# This hand-written C file includes standard C headers and then
|
||||
# creates typedef or enum names beginning with a dollar sign
|
||||
# (use of $ in variable names is a gcc extension). The hardest
|
||||
# part about preparing this file is figuring out which headers to
|
||||
# include and which symbols need to be #defined to get the
|
||||
# actual data structures that pass through to the kernel system calls.
|
||||
# Some C libraries present alternate versions for binary compatibility
|
||||
# and translate them on the way in and out of system calls, but
|
||||
# there is almost always a #define that can get the real ones.
|
||||
# See types_darwin.c and types_linux.c for examples.
|
||||
#
|
||||
# * zerror_${GOOS}_${GOARCH}.go
|
||||
#
|
||||
# This machine-generated file defines the system's error numbers,
|
||||
# error strings, and signal numbers. The generator is "mkerrors.sh".
|
||||
# Usually no arguments are needed, but mkerrors.sh will pass its
|
||||
# arguments on to godefs.
|
||||
#
|
||||
# * zsyscall_${GOOS}_${GOARCH}.go
|
||||
#
|
||||
# Generated by mksyscall.pl; see syscall_${GOOS}.go above.
|
||||
#
|
||||
# * zsysnum_${GOOS}_${GOARCH}.go
|
||||
#
|
||||
# Generated by mksysnum_${GOOS}.
|
||||
#
|
||||
# * ztypes_${GOOS}_${GOARCH}.go
|
||||
#
|
||||
# Generated by godefs; see types_${GOOS}.c above.
|
||||
|
||||
GOOSARCH="${GOOS}_${GOARCH}"
|
||||
|
||||
# defaults
|
||||
mksyscall="go run mksyscall.go"
|
||||
mkerrors="./mkerrors.sh"
|
||||
zerrors="zerrors_$GOOSARCH.go"
|
||||
mksysctl=""
|
||||
zsysctl="zsysctl_$GOOSARCH.go"
|
||||
mksysnum=
|
||||
mktypes=
|
||||
run="sh"
|
||||
|
||||
case "$1" in
|
||||
-syscalls)
|
||||
for i in zsyscall*go
|
||||
do
|
||||
sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
|
||||
rm _$i
|
||||
done
|
||||
exit 0
|
||||
;;
|
||||
-n)
|
||||
run="cat"
|
||||
shift
|
||||
esac
|
||||
|
||||
case "$#" in
|
||||
0)
|
||||
;;
|
||||
*)
|
||||
echo 'usage: mkall.sh [-n]' 1>&2
|
||||
exit 2
|
||||
esac
|
||||
|
||||
case "$GOOSARCH" in
|
||||
_* | *_ | _)
|
||||
echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
|
||||
exit 1
|
||||
;;
|
||||
plan9_386)
|
||||
mkerrors=
|
||||
mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,386"
|
||||
mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
|
||||
mktypes="XXX"
|
||||
;;
|
||||
plan9_amd64)
|
||||
mkerrors=
|
||||
mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,amd64"
|
||||
mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
|
||||
mktypes="XXX"
|
||||
;;
|
||||
plan9_arm)
|
||||
mkerrors=
|
||||
mksyscall="go run mksyscall.go -l32 -plan9 -tags plan9,arm"
|
||||
mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
|
||||
mktypes="XXX"
|
||||
;;
|
||||
*)
|
||||
echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
|
||||
(
|
||||
if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
|
||||
case "$GOOS" in
|
||||
plan9)
|
||||
syscall_goos="syscall_$GOOS.go"
|
||||
if [ -n "$mksyscall" ]; then echo "$mksyscall $syscall_goos |gofmt >zsyscall_$GOOSARCH.go"; fi
|
||||
;;
|
||||
esac
|
||||
if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
|
||||
if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
|
||||
if [ -n "$mktypes" ]; then echo "$mktypes types_$GOOS.go |gofmt >ztypes_$GOOSARCH.go"; fi
|
||||
) | $run
|
|
@ -0,0 +1,246 @@
|
|||
#!/usr/bin/env bash
|
||||
# Copyright 2009 The Go Authors. All rights reserved.
|
||||
# Use of this source code is governed by a BSD-style
|
||||
# license that can be found in the LICENSE file.
|
||||
|
||||
# Generate Go code listing errors and other #defined constant
|
||||
# values (ENAMETOOLONG etc.), by asking the preprocessor
|
||||
# about the definitions.
|
||||
|
||||
unset LANG
|
||||
export LC_ALL=C
|
||||
export LC_CTYPE=C
|
||||
|
||||
CC=${CC:-gcc}
|
||||
|
||||
uname=$(uname)
|
||||
|
||||
includes='
|
||||
#include <sys/types.h>
|
||||
#include <sys/file.h>
|
||||
#include <fcntl.h>
|
||||
#include <dirent.h>
|
||||
#include <sys/socket.h>
|
||||
#include <netinet/in.h>
|
||||
#include <netinet/ip.h>
|
||||
#include <netinet/ip6.h>
|
||||
#include <netinet/tcp.h>
|
||||
#include <errno.h>
|
||||
#include <sys/signal.h>
|
||||
#include <signal.h>
|
||||
#include <sys/resource.h>
|
||||
'
|
||||
|
||||
ccflags="$@"
|
||||
|
||||
# Write go tool cgo -godefs input.
|
||||
(
|
||||
echo package plan9
|
||||
echo
|
||||
echo '/*'
|
||||
indirect="includes_$(uname)"
|
||||
echo "${!indirect} $includes"
|
||||
echo '*/'
|
||||
echo 'import "C"'
|
||||
echo
|
||||
echo 'const ('
|
||||
|
||||
# The gcc command line prints all the #defines
|
||||
# it encounters while processing the input
|
||||
echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
|
||||
awk '
|
||||
$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
|
||||
|
||||
$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers
|
||||
$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
|
||||
$2 ~ /^(SCM_SRCRT)$/ {next}
|
||||
$2 ~ /^(MAP_FAILED)$/ {next}
|
||||
|
||||
$2 !~ /^ETH_/ &&
|
||||
$2 !~ /^EPROC_/ &&
|
||||
$2 !~ /^EQUIV_/ &&
|
||||
$2 !~ /^EXPR_/ &&
|
||||
$2 ~ /^E[A-Z0-9_]+$/ ||
|
||||
$2 ~ /^B[0-9_]+$/ ||
|
||||
$2 ~ /^V[A-Z0-9]+$/ ||
|
||||
$2 ~ /^CS[A-Z0-9]/ ||
|
||||
$2 ~ /^I(SIG|CANON|CRNL|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
|
||||
$2 ~ /^IGN/ ||
|
||||
$2 ~ /^IX(ON|ANY|OFF)$/ ||
|
||||
$2 ~ /^IN(LCR|PCK)$/ ||
|
||||
$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
|
||||
$2 ~ /^C(LOCAL|READ)$/ ||
|
||||
$2 == "BRKINT" ||
|
||||
$2 == "HUPCL" ||
|
||||
$2 == "PENDIN" ||
|
||||
$2 == "TOSTOP" ||
|
||||
$2 ~ /^PAR/ ||
|
||||
$2 ~ /^SIG[^_]/ ||
|
||||
$2 ~ /^O[CNPFP][A-Z]+[^_][A-Z]+$/ ||
|
||||
$2 ~ /^IN_/ ||
|
||||
$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
|
||||
$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
|
||||
$2 == "ICMPV6_FILTER" ||
|
||||
$2 == "SOMAXCONN" ||
|
||||
$2 == "NAME_MAX" ||
|
||||
$2 == "IFNAMSIZ" ||
|
||||
$2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ ||
|
||||
$2 ~ /^SYSCTL_VERS/ ||
|
||||
$2 ~ /^(MS|MNT)_/ ||
|
||||
$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
|
||||
$2 ~ /^(O|F|FD|NAME|S|PTRACE|PT)_/ ||
|
||||
$2 ~ /^LINUX_REBOOT_CMD_/ ||
|
||||
$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
|
||||
$2 !~ "NLA_TYPE_MASK" &&
|
||||
$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
|
||||
$2 ~ /^SIOC/ ||
|
||||
$2 ~ /^TIOC/ ||
|
||||
$2 !~ "RTF_BITS" &&
|
||||
$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
|
||||
$2 ~ /^BIOC/ ||
|
||||
$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
|
||||
$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|NOFILE|STACK)|RLIM_INFINITY/ ||
|
||||
$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
|
||||
$2 ~ /^CLONE_[A-Z_]+/ ||
|
||||
$2 !~ /^(BPF_TIMEVAL)$/ &&
|
||||
$2 ~ /^(BPF|DLT)_/ ||
|
||||
$2 !~ "WMESGLEN" &&
|
||||
$2 ~ /^W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", $2, $2)}
|
||||
$2 ~ /^__WCOREFLAG$/ {next}
|
||||
$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
|
||||
|
||||
{next}
|
||||
' | sort
|
||||
|
||||
echo ')'
|
||||
) >_const.go
|
||||
|
||||
# Pull out the error names for later.
|
||||
errors=$(
|
||||
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
|
||||
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
|
||||
sort
|
||||
)
|
||||
|
||||
# Pull out the signal names for later.
|
||||
signals=$(
|
||||
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
|
||||
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
|
||||
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
|
||||
sort
|
||||
)
|
||||
|
||||
# Again, writing regexps to a file.
|
||||
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
|
||||
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
|
||||
sort >_error.grep
|
||||
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
|
||||
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
|
||||
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
|
||||
sort >_signal.grep
|
||||
|
||||
echo '// mkerrors.sh' "$@"
|
||||
echo '// Code generated by the command above; DO NOT EDIT.'
|
||||
echo
|
||||
go tool cgo -godefs -- "$@" _const.go >_error.out
|
||||
cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
|
||||
echo
|
||||
echo '// Errors'
|
||||
echo 'const ('
|
||||
cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= Errno(\1)/'
|
||||
echo ')'
|
||||
|
||||
echo
|
||||
echo '// Signals'
|
||||
echo 'const ('
|
||||
cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= Signal(\1)/'
|
||||
echo ')'
|
||||
|
||||
# Run C program to print error and syscall strings.
|
||||
(
|
||||
echo -E "
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <errno.h>
|
||||
#include <ctype.h>
|
||||
#include <string.h>
|
||||
#include <signal.h>
|
||||
|
||||
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
|
||||
|
||||
enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
|
||||
|
||||
int errors[] = {
|
||||
"
|
||||
for i in $errors
|
||||
do
|
||||
echo -E ' '$i,
|
||||
done
|
||||
|
||||
echo -E "
|
||||
};
|
||||
|
||||
int signals[] = {
|
||||
"
|
||||
for i in $signals
|
||||
do
|
||||
echo -E ' '$i,
|
||||
done
|
||||
|
||||
# Use -E because on some systems bash builtin interprets \n itself.
|
||||
echo -E '
|
||||
};
|
||||
|
||||
static int
|
||||
intcmp(const void *a, const void *b)
|
||||
{
|
||||
return *(int*)a - *(int*)b;
|
||||
}
|
||||
|
||||
int
|
||||
main(void)
|
||||
{
|
||||
int i, j, e;
|
||||
char buf[1024], *p;
|
||||
|
||||
printf("\n\n// Error table\n");
|
||||
printf("var errors = [...]string {\n");
|
||||
qsort(errors, nelem(errors), sizeof errors[0], intcmp);
|
||||
for(i=0; i<nelem(errors); i++) {
|
||||
e = errors[i];
|
||||
if(i > 0 && errors[i-1] == e)
|
||||
continue;
|
||||
strcpy(buf, strerror(e));
|
||||
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
|
||||
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
|
||||
buf[0] += a - A;
|
||||
printf("\t%d: \"%s\",\n", e, buf);
|
||||
}
|
||||
printf("}\n\n");
|
||||
|
||||
printf("\n\n// Signal table\n");
|
||||
printf("var signals = [...]string {\n");
|
||||
qsort(signals, nelem(signals), sizeof signals[0], intcmp);
|
||||
for(i=0; i<nelem(signals); i++) {
|
||||
e = signals[i];
|
||||
if(i > 0 && signals[i-1] == e)
|
||||
continue;
|
||||
strcpy(buf, strsignal(e));
|
||||
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
|
||||
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
|
||||
buf[0] += a - A;
|
||||
// cut trailing : number.
|
||||
p = strrchr(buf, ":"[0]);
|
||||
if(p)
|
||||
*p = '\0';
|
||||
printf("\t%d: \"%s\",\n", e, buf);
|
||||
}
|
||||
printf("}\n\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
'
|
||||
) >_errors.c
|
||||
|
||||
$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out
|
|
@ -0,0 +1,23 @@
|
|||
#!/bin/sh
|
||||
# Copyright 2009 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.
|
||||
|
||||
COMMAND="mksysnum_plan9.sh $@"
|
||||
|
||||
cat <<EOF
|
||||
// $COMMAND
|
||||
// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
|
||||
|
||||
package plan9
|
||||
|
||||
const(
|
||||
EOF
|
||||
|
||||
SP='[ ]' # space or tab
|
||||
sed "s/^#define${SP}\\([A-Z0-9_][A-Z0-9_]*\\)${SP}${SP}*\\([0-9][0-9]*\\)/SYS_\\1=\\2/g" \
|
||||
< $1 | grep -v SYS__
|
||||
|
||||
cat <<EOF
|
||||
)
|
||||
EOF
|
|
@ -0,0 +1,21 @@
|
|||
// Copyright 2015 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 go1.5
|
||||
|
||||
package plan9
|
||||
|
||||
import "syscall"
|
||||
|
||||
func fixwd() {
|
||||
syscall.Fixwd()
|
||||
}
|
||||
|
||||
func Getwd() (wd string, err error) {
|
||||
return syscall.Getwd()
|
||||
}
|
||||
|
||||
func Chdir(path string) error {
|
||||
return syscall.Chdir(path)
|
||||
}
|
|
@ -0,0 +1,23 @@
|
|||
// Copyright 2015 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 !go1.5
|
||||
|
||||
package plan9
|
||||
|
||||
func fixwd() {
|
||||
}
|
||||
|
||||
func Getwd() (wd string, err error) {
|
||||
fd, err := open(".", O_RDONLY)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
defer Close(fd)
|
||||
return Fd2path(fd)
|
||||
}
|
||||
|
||||
func Chdir(path string) error {
|
||||
return chdir(path)
|
||||
}
|
|
@ -0,0 +1,30 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build plan9,race
|
||||
|
||||
package plan9
|
||||
|
||||
import (
|
||||
"runtime"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
const raceenabled = true
|
||||
|
||||
func raceAcquire(addr unsafe.Pointer) {
|
||||
runtime.RaceAcquire(addr)
|
||||
}
|
||||
|
||||
func raceReleaseMerge(addr unsafe.Pointer) {
|
||||
runtime.RaceReleaseMerge(addr)
|
||||
}
|
||||
|
||||
func raceReadRange(addr unsafe.Pointer, len int) {
|
||||
runtime.RaceReadRange(addr, len)
|
||||
}
|
||||
|
||||
func raceWriteRange(addr unsafe.Pointer, len int) {
|
||||
runtime.RaceWriteRange(addr, len)
|
||||
}
|
|
@ -0,0 +1,25 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build plan9,!race
|
||||
|
||||
package plan9
|
||||
|
||||
import (
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
const raceenabled = false
|
||||
|
||||
func raceAcquire(addr unsafe.Pointer) {
|
||||
}
|
||||
|
||||
func raceReleaseMerge(addr unsafe.Pointer) {
|
||||
}
|
||||
|
||||
func raceReadRange(addr unsafe.Pointer, len int) {
|
||||
}
|
||||
|
||||
func raceWriteRange(addr unsafe.Pointer, len int) {
|
||||
}
|
|
@ -0,0 +1,22 @@
|
|||
// Copyright 2009 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 plan9
|
||||
|
||||
package plan9
|
||||
|
||||
func itoa(val int) string { // do it here rather than with fmt to avoid dependency
|
||||
if val < 0 {
|
||||
return "-" + itoa(-val)
|
||||
}
|
||||
var buf [32]byte // big enough for int64
|
||||
i := len(buf) - 1
|
||||
for val >= 10 {
|
||||
buf[i] = byte(val%10 + '0')
|
||||
i--
|
||||
val /= 10
|
||||
}
|
||||
buf[i] = byte(val + '0')
|
||||
return string(buf[i:])
|
||||
}
|
|
@ -0,0 +1,116 @@
|
|||
// Copyright 2009 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 plan9
|
||||
|
||||
// Package plan9 contains an interface to the low-level operating system
|
||||
// primitives. OS details vary depending on the underlying system, and
|
||||
// by default, godoc will display the OS-specific documentation for the current
|
||||
// system. If you want godoc to display documentation for another
|
||||
// system, set $GOOS and $GOARCH to the desired system. For example, if
|
||||
// you want to view documentation for freebsd/arm on linux/amd64, set $GOOS
|
||||
// to freebsd and $GOARCH to arm.
|
||||
//
|
||||
// The primary use of this package is inside other packages that provide a more
|
||||
// portable interface to the system, such as "os", "time" and "net". Use
|
||||
// those packages rather than this one if you can.
|
||||
//
|
||||
// For details of the functions and data types in this package consult
|
||||
// the manuals for the appropriate operating system.
|
||||
//
|
||||
// These calls return err == nil to indicate success; otherwise
|
||||
// err represents an operating system error describing the failure and
|
||||
// holds a value of type syscall.ErrorString.
|
||||
package plan9 // import "golang.org/x/sys/plan9"
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"strings"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/internal/unsafeheader"
|
||||
)
|
||||
|
||||
// ByteSliceFromString returns a NUL-terminated slice of bytes
|
||||
// containing the text of s. If s contains a NUL byte at any
|
||||
// location, it returns (nil, EINVAL).
|
||||
func ByteSliceFromString(s string) ([]byte, error) {
|
||||
if strings.IndexByte(s, 0) != -1 {
|
||||
return nil, EINVAL
|
||||
}
|
||||
a := make([]byte, len(s)+1)
|
||||
copy(a, s)
|
||||
return a, nil
|
||||
}
|
||||
|
||||
// BytePtrFromString returns a pointer to a NUL-terminated array of
|
||||
// bytes containing the text of s. If s contains a NUL byte at any
|
||||
// location, it returns (nil, EINVAL).
|
||||
func BytePtrFromString(s string) (*byte, error) {
|
||||
a, err := ByteSliceFromString(s)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &a[0], nil
|
||||
}
|
||||
|
||||
// ByteSliceToString returns a string form of the text represented by the slice s, with a terminating NUL and any
|
||||
// bytes after the NUL removed.
|
||||
func ByteSliceToString(s []byte) string {
|
||||
if i := bytes.IndexByte(s, 0); i != -1 {
|
||||
s = s[:i]
|
||||
}
|
||||
return string(s)
|
||||
}
|
||||
|
||||
// BytePtrToString takes a pointer to a sequence of text and returns the corresponding string.
|
||||
// If the pointer is nil, it returns the empty string. It assumes that the text sequence is terminated
|
||||
// at a zero byte; if the zero byte is not present, the program may crash.
|
||||
func BytePtrToString(p *byte) string {
|
||||
if p == nil {
|
||||
return ""
|
||||
}
|
||||
if *p == 0 {
|
||||
return ""
|
||||
}
|
||||
|
||||
// Find NUL terminator.
|
||||
n := 0
|
||||
for ptr := unsafe.Pointer(p); *(*byte)(ptr) != 0; n++ {
|
||||
ptr = unsafe.Pointer(uintptr(ptr) + 1)
|
||||
}
|
||||
|
||||
var s []byte
|
||||
h := (*unsafeheader.Slice)(unsafe.Pointer(&s))
|
||||
h.Data = unsafe.Pointer(p)
|
||||
h.Len = n
|
||||
h.Cap = n
|
||||
|
||||
return string(s)
|
||||
}
|
||||
|
||||
// Single-word zero for use when we need a valid pointer to 0 bytes.
|
||||
// See mksyscall.pl.
|
||||
var _zero uintptr
|
||||
|
||||
func (ts *Timespec) Unix() (sec int64, nsec int64) {
|
||||
return int64(ts.Sec), int64(ts.Nsec)
|
||||
}
|
||||
|
||||
func (tv *Timeval) Unix() (sec int64, nsec int64) {
|
||||
return int64(tv.Sec), int64(tv.Usec) * 1000
|
||||
}
|
||||
|
||||
func (ts *Timespec) Nano() int64 {
|
||||
return int64(ts.Sec)*1e9 + int64(ts.Nsec)
|
||||
}
|
||||
|
||||
func (tv *Timeval) Nano() int64 {
|
||||
return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000
|
||||
}
|
||||
|
||||
// use is a no-op, but the compiler cannot see that it is.
|
||||
// Calling use(p) ensures that p is kept live until that point.
|
||||
//go:noescape
|
||||
func use(p unsafe.Pointer)
|
|
@ -0,0 +1,349 @@
|
|||
// Copyright 2011 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.
|
||||
|
||||
// Plan 9 system calls.
|
||||
// This file is compiled as ordinary Go code,
|
||||
// but it is also input to mksyscall,
|
||||
// which parses the //sys lines and generates system call stubs.
|
||||
// Note that sometimes we use a lowercase //sys name and
|
||||
// wrap it in our own nicer implementation.
|
||||
|
||||
package plan9
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// A Note is a string describing a process note.
|
||||
// It implements the os.Signal interface.
|
||||
type Note string
|
||||
|
||||
func (n Note) Signal() {}
|
||||
|
||||
func (n Note) String() string {
|
||||
return string(n)
|
||||
}
|
||||
|
||||
var (
|
||||
Stdin = 0
|
||||
Stdout = 1
|
||||
Stderr = 2
|
||||
)
|
||||
|
||||
// For testing: clients can set this flag to force
|
||||
// creation of IPv6 sockets to return EAFNOSUPPORT.
|
||||
var SocketDisableIPv6 bool
|
||||
|
||||
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.ErrorString)
|
||||
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.ErrorString)
|
||||
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
|
||||
func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
|
||||
|
||||
func atoi(b []byte) (n uint) {
|
||||
n = 0
|
||||
for i := 0; i < len(b); i++ {
|
||||
n = n*10 + uint(b[i]-'0')
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func cstring(s []byte) string {
|
||||
i := bytes.IndexByte(s, 0)
|
||||
if i == -1 {
|
||||
i = len(s)
|
||||
}
|
||||
return string(s[:i])
|
||||
}
|
||||
|
||||
func errstr() string {
|
||||
var buf [ERRMAX]byte
|
||||
|
||||
RawSyscall(SYS_ERRSTR, uintptr(unsafe.Pointer(&buf[0])), uintptr(len(buf)), 0)
|
||||
|
||||
buf[len(buf)-1] = 0
|
||||
return cstring(buf[:])
|
||||
}
|
||||
|
||||
// Implemented in assembly to import from runtime.
|
||||
func exit(code int)
|
||||
|
||||
func Exit(code int) { exit(code) }
|
||||
|
||||
func readnum(path string) (uint, error) {
|
||||
var b [12]byte
|
||||
|
||||
fd, e := Open(path, O_RDONLY)
|
||||
if e != nil {
|
||||
return 0, e
|
||||
}
|
||||
defer Close(fd)
|
||||
|
||||
n, e := Pread(fd, b[:], 0)
|
||||
|
||||
if e != nil {
|
||||
return 0, e
|
||||
}
|
||||
|
||||
m := 0
|
||||
for ; m < n && b[m] == ' '; m++ {
|
||||
}
|
||||
|
||||
return atoi(b[m : n-1]), nil
|
||||
}
|
||||
|
||||
func Getpid() (pid int) {
|
||||
n, _ := readnum("#c/pid")
|
||||
return int(n)
|
||||
}
|
||||
|
||||
func Getppid() (ppid int) {
|
||||
n, _ := readnum("#c/ppid")
|
||||
return int(n)
|
||||
}
|
||||
|
||||
func Read(fd int, p []byte) (n int, err error) {
|
||||
return Pread(fd, p, -1)
|
||||
}
|
||||
|
||||
func Write(fd int, p []byte) (n int, err error) {
|
||||
return Pwrite(fd, p, -1)
|
||||
}
|
||||
|
||||
var ioSync int64
|
||||
|
||||
//sys fd2path(fd int, buf []byte) (err error)
|
||||
func Fd2path(fd int) (path string, err error) {
|
||||
var buf [512]byte
|
||||
|
||||
e := fd2path(fd, buf[:])
|
||||
if e != nil {
|
||||
return "", e
|
||||
}
|
||||
return cstring(buf[:]), nil
|
||||
}
|
||||
|
||||
//sys pipe(p *[2]int32) (err error)
|
||||
func Pipe(p []int) (err error) {
|
||||
if len(p) != 2 {
|
||||
return syscall.ErrorString("bad arg in system call")
|
||||
}
|
||||
var pp [2]int32
|
||||
err = pipe(&pp)
|
||||
p[0] = int(pp[0])
|
||||
p[1] = int(pp[1])
|
||||
return
|
||||
}
|
||||
|
||||
// Underlying system call writes to newoffset via pointer.
|
||||
// Implemented in assembly to avoid allocation.
|
||||
func seek(placeholder uintptr, fd int, offset int64, whence int) (newoffset int64, err string)
|
||||
|
||||
func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
|
||||
newoffset, e := seek(0, fd, offset, whence)
|
||||
|
||||
if newoffset == -1 {
|
||||
err = syscall.ErrorString(e)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Mkdir(path string, mode uint32) (err error) {
|
||||
fd, err := Create(path, O_RDONLY, DMDIR|mode)
|
||||
|
||||
if fd != -1 {
|
||||
Close(fd)
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
type Waitmsg struct {
|
||||
Pid int
|
||||
Time [3]uint32
|
||||
Msg string
|
||||
}
|
||||
|
||||
func (w Waitmsg) Exited() bool { return true }
|
||||
func (w Waitmsg) Signaled() bool { return false }
|
||||
|
||||
func (w Waitmsg) ExitStatus() int {
|
||||
if len(w.Msg) == 0 {
|
||||
// a normal exit returns no message
|
||||
return 0
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
//sys await(s []byte) (n int, err error)
|
||||
func Await(w *Waitmsg) (err error) {
|
||||
var buf [512]byte
|
||||
var f [5][]byte
|
||||
|
||||
n, err := await(buf[:])
|
||||
|
||||
if err != nil || w == nil {
|
||||
return
|
||||
}
|
||||
|
||||
nf := 0
|
||||
p := 0
|
||||
for i := 0; i < n && nf < len(f)-1; i++ {
|
||||
if buf[i] == ' ' {
|
||||
f[nf] = buf[p:i]
|
||||
p = i + 1
|
||||
nf++
|
||||
}
|
||||
}
|
||||
f[nf] = buf[p:]
|
||||
nf++
|
||||
|
||||
if nf != len(f) {
|
||||
return syscall.ErrorString("invalid wait message")
|
||||
}
|
||||
w.Pid = int(atoi(f[0]))
|
||||
w.Time[0] = uint32(atoi(f[1]))
|
||||
w.Time[1] = uint32(atoi(f[2]))
|
||||
w.Time[2] = uint32(atoi(f[3]))
|
||||
w.Msg = cstring(f[4])
|
||||
if w.Msg == "''" {
|
||||
// await() returns '' for no error
|
||||
w.Msg = ""
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Unmount(name, old string) (err error) {
|
||||
fixwd()
|
||||
oldp, err := BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
oldptr := uintptr(unsafe.Pointer(oldp))
|
||||
|
||||
var r0 uintptr
|
||||
var e syscall.ErrorString
|
||||
|
||||
// bind(2) man page: If name is zero, everything bound or mounted upon old is unbound or unmounted.
|
||||
if name == "" {
|
||||
r0, _, e = Syscall(SYS_UNMOUNT, _zero, oldptr, 0)
|
||||
} else {
|
||||
namep, err := BytePtrFromString(name)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
r0, _, e = Syscall(SYS_UNMOUNT, uintptr(unsafe.Pointer(namep)), oldptr, 0)
|
||||
}
|
||||
|
||||
if int32(r0) == -1 {
|
||||
err = e
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func Fchdir(fd int) (err error) {
|
||||
path, err := Fd2path(fd)
|
||||
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
return Chdir(path)
|
||||
}
|
||||
|
||||
type Timespec struct {
|
||||
Sec int32
|
||||
Nsec int32
|
||||
}
|
||||
|
||||
type Timeval struct {
|
||||
Sec int32
|
||||
Usec int32
|
||||
}
|
||||
|
||||
func NsecToTimeval(nsec int64) (tv Timeval) {
|
||||
nsec += 999 // round up to microsecond
|
||||
tv.Usec = int32(nsec % 1e9 / 1e3)
|
||||
tv.Sec = int32(nsec / 1e9)
|
||||
return
|
||||
}
|
||||
|
||||
func nsec() int64 {
|
||||
var scratch int64
|
||||
|
||||
r0, _, _ := Syscall(SYS_NSEC, uintptr(unsafe.Pointer(&scratch)), 0, 0)
|
||||
// TODO(aram): remove hack after I fix _nsec in the pc64 kernel.
|
||||
if r0 == 0 {
|
||||
return scratch
|
||||
}
|
||||
return int64(r0)
|
||||
}
|
||||
|
||||
func Gettimeofday(tv *Timeval) error {
|
||||
nsec := nsec()
|
||||
*tv = NsecToTimeval(nsec)
|
||||
return nil
|
||||
}
|
||||
|
||||
func Getpagesize() int { return 0x1000 }
|
||||
|
||||
func Getegid() (egid int) { return -1 }
|
||||
func Geteuid() (euid int) { return -1 }
|
||||
func Getgid() (gid int) { return -1 }
|
||||
func Getuid() (uid int) { return -1 }
|
||||
|
||||
func Getgroups() (gids []int, err error) {
|
||||
return make([]int, 0), nil
|
||||
}
|
||||
|
||||
//sys open(path string, mode int) (fd int, err error)
|
||||
func Open(path string, mode int) (fd int, err error) {
|
||||
fixwd()
|
||||
return open(path, mode)
|
||||
}
|
||||
|
||||
//sys create(path string, mode int, perm uint32) (fd int, err error)
|
||||
func Create(path string, mode int, perm uint32) (fd int, err error) {
|
||||
fixwd()
|
||||
return create(path, mode, perm)
|
||||
}
|
||||
|
||||
//sys remove(path string) (err error)
|
||||
func Remove(path string) error {
|
||||
fixwd()
|
||||
return remove(path)
|
||||
}
|
||||
|
||||
//sys stat(path string, edir []byte) (n int, err error)
|
||||
func Stat(path string, edir []byte) (n int, err error) {
|
||||
fixwd()
|
||||
return stat(path, edir)
|
||||
}
|
||||
|
||||
//sys bind(name string, old string, flag int) (err error)
|
||||
func Bind(name string, old string, flag int) (err error) {
|
||||
fixwd()
|
||||
return bind(name, old, flag)
|
||||
}
|
||||
|
||||
//sys mount(fd int, afd int, old string, flag int, aname string) (err error)
|
||||
func Mount(fd int, afd int, old string, flag int, aname string) (err error) {
|
||||
fixwd()
|
||||
return mount(fd, afd, old, flag, aname)
|
||||
}
|
||||
|
||||
//sys wstat(path string, edir []byte) (err error)
|
||||
func Wstat(path string, edir []byte) (err error) {
|
||||
fixwd()
|
||||
return wstat(path, edir)
|
||||
}
|
||||
|
||||
//sys chdir(path string) (err error)
|
||||
//sys Dup(oldfd int, newfd int) (fd int, err error)
|
||||
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
|
||||
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
|
||||
//sys Close(fd int) (err error)
|
||||
//sys Fstat(fd int, edir []byte) (n int, err error)
|
||||
//sys Fwstat(fd int, edir []byte) (err error)
|
|
@ -0,0 +1,284 @@
|
|||
// go run mksyscall.go -l32 -plan9 -tags plan9,386 syscall_plan9.go
|
||||
// Code generated by the command above; see README.md. DO NOT EDIT.
|
||||
|
||||
// +build plan9,386
|
||||
|
||||
package plan9
|
||||
|
||||
import "unsafe"
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func fd2path(fd int, buf []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(buf) > 0 {
|
||||
_p0 = unsafe.Pointer(&buf[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func pipe(p *[2]int32) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func await(s []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(s) > 0 {
|
||||
_p0 = unsafe.Pointer(&s[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func open(path string, mode int) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func create(path string, mode int, perm uint32) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func remove(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func stat(path string, edir []byte) (n int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func bind(name string, old string, flag int) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(name)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(aname)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func wstat(path string, edir []byte) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func chdir(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Dup(oldfd int, newfd int) (fd int, err error) {
|
||||
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pread(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Close(fd int) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fstat(fd int, edir []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fwstat(fd int, edir []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
|
@ -0,0 +1,284 @@
|
|||
// go run mksyscall.go -l32 -plan9 -tags plan9,amd64 syscall_plan9.go
|
||||
// Code generated by the command above; see README.md. DO NOT EDIT.
|
||||
|
||||
// +build plan9,amd64
|
||||
|
||||
package plan9
|
||||
|
||||
import "unsafe"
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func fd2path(fd int, buf []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(buf) > 0 {
|
||||
_p0 = unsafe.Pointer(&buf[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func pipe(p *[2]int32) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func await(s []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(s) > 0 {
|
||||
_p0 = unsafe.Pointer(&s[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func open(path string, mode int) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func create(path string, mode int, perm uint32) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func remove(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func stat(path string, edir []byte) (n int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func bind(name string, old string, flag int) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(name)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(aname)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func wstat(path string, edir []byte) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func chdir(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Dup(oldfd int, newfd int) (fd int, err error) {
|
||||
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pread(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Close(fd int) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fstat(fd int, edir []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fwstat(fd int, edir []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
|
@ -0,0 +1,284 @@
|
|||
// go run mksyscall.go -l32 -plan9 -tags plan9,arm syscall_plan9.go
|
||||
// Code generated by the command above; see README.md. DO NOT EDIT.
|
||||
|
||||
// +build plan9,arm
|
||||
|
||||
package plan9
|
||||
|
||||
import "unsafe"
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func fd2path(fd int, buf []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(buf) > 0 {
|
||||
_p0 = unsafe.Pointer(&buf[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func pipe(p *[2]int32) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func await(s []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(s) > 0 {
|
||||
_p0 = unsafe.Pointer(&s[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func open(path string, mode int) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func create(path string, mode int, perm uint32) (fd int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func remove(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func stat(path string, edir []byte) (n int, err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func bind(name string, old string, flag int) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(name)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(old)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 *byte
|
||||
_p1, err = BytePtrFromString(aname)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func wstat(path string, edir []byte) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
var _p1 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p1 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p1 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func chdir(path string) (err error) {
|
||||
var _p0 *byte
|
||||
_p0, err = BytePtrFromString(path)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Dup(oldfd int, newfd int) (fd int, err error) {
|
||||
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
|
||||
fd = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pread(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(p) > 0 {
|
||||
_p0 = unsafe.Pointer(&p[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Close(fd int) (err error) {
|
||||
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fstat(fd int, edir []byte) (n int, err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
n = int(r0)
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
|
||||
|
||||
func Fwstat(fd int, edir []byte) (err error) {
|
||||
var _p0 unsafe.Pointer
|
||||
if len(edir) > 0 {
|
||||
_p0 = unsafe.Pointer(&edir[0])
|
||||
} else {
|
||||
_p0 = unsafe.Pointer(&_zero)
|
||||
}
|
||||
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
|
||||
if int32(r0) == -1 {
|
||||
err = e1
|
||||
}
|
||||
return
|
||||
}
|
|
@ -0,0 +1,49 @@
|
|||
// mksysnum_plan9.sh /opt/plan9/sys/src/libc/9syscall/sys.h
|
||||
// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
|
||||
|
||||
package plan9
|
||||
|
||||
const (
|
||||
SYS_SYSR1 = 0
|
||||
SYS_BIND = 2
|
||||
SYS_CHDIR = 3
|
||||
SYS_CLOSE = 4
|
||||
SYS_DUP = 5
|
||||
SYS_ALARM = 6
|
||||
SYS_EXEC = 7
|
||||
SYS_EXITS = 8
|
||||
SYS_FAUTH = 10
|
||||
SYS_SEGBRK = 12
|
||||
SYS_OPEN = 14
|
||||
SYS_OSEEK = 16
|
||||
SYS_SLEEP = 17
|
||||
SYS_RFORK = 19
|
||||
SYS_PIPE = 21
|
||||
SYS_CREATE = 22
|
||||
SYS_FD2PATH = 23
|
||||
SYS_BRK_ = 24
|
||||
SYS_REMOVE = 25
|
||||
SYS_NOTIFY = 28
|
||||
SYS_NOTED = 29
|
||||
SYS_SEGATTACH = 30
|
||||
SYS_SEGDETACH = 31
|
||||
SYS_SEGFREE = 32
|
||||
SYS_SEGFLUSH = 33
|
||||
SYS_RENDEZVOUS = 34
|
||||
SYS_UNMOUNT = 35
|
||||
SYS_SEMACQUIRE = 37
|
||||
SYS_SEMRELEASE = 38
|
||||
SYS_SEEK = 39
|
||||
SYS_FVERSION = 40
|
||||
SYS_ERRSTR = 41
|
||||
SYS_STAT = 42
|
||||
SYS_FSTAT = 43
|
||||
SYS_WSTAT = 44
|
||||
SYS_FWSTAT = 45
|
||||
SYS_MOUNT = 46
|
||||
SYS_AWAIT = 47
|
||||
SYS_PREAD = 50
|
||||
SYS_PWRITE = 51
|
||||
SYS_TSEMACQUIRE = 52
|
||||
SYS_NSEC = 53
|
||||
)
|
|
@ -0,0 +1,3 @@
|
|||
# This source code refers to The Go Authors for copyright purposes.
|
||||
# The master list of authors is in the main Go distribution,
|
||||
# visible at http://tip.golang.org/AUTHORS.
|
|
@ -0,0 +1,26 @@
|
|||
# Contributing to Go
|
||||
|
||||
Go is an open source project.
|
||||
|
||||
It is the work of hundreds of contributors. We appreciate your help!
|
||||
|
||||
## Filing issues
|
||||
|
||||
When [filing an issue](https://golang.org/issue/new), make sure to answer these five questions:
|
||||
|
||||
1. What version of Go are you using (`go version`)?
|
||||
2. What operating system and processor architecture are you using?
|
||||
3. What did you do?
|
||||
4. What did you expect to see?
|
||||
5. What did you see instead?
|
||||
|
||||
General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
|
||||
The gophers there will answer or ask you to file an issue if you've tripped over a bug.
|
||||
|
||||
## Contributing code
|
||||
|
||||
Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
|
||||
before sending patches.
|
||||
|
||||
Unless otherwise noted, the Go source files are distributed under
|
||||
the BSD-style license found in the LICENSE file.
|
|
@ -0,0 +1,3 @@
|
|||
# This source code was written by the Go contributors.
|
||||
# The master list of contributors is in the main Go distribution,
|
||||
# visible at http://tip.golang.org/CONTRIBUTORS.
|
|
@ -0,0 +1,27 @@
|
|||
Copyright (c) 2009 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
@ -0,0 +1,22 @@
|
|||
Additional IP Rights Grant (Patents)
|
||||
|
||||
"This implementation" means the copyrightable works distributed by
|
||||
Google as part of the Go project.
|
||||
|
||||
Google hereby grants to You a perpetual, worldwide, non-exclusive,
|
||||
no-charge, royalty-free, irrevocable (except as stated in this section)
|
||||
patent license to make, have made, use, offer to sell, sell, import,
|
||||
transfer and otherwise run, modify and propagate the contents of this
|
||||
implementation of Go, where such license applies only to those patent
|
||||
claims, both currently owned or controlled by Google and acquired in
|
||||
the future, licensable by Google that are necessarily infringed by this
|
||||
implementation of Go. This grant does not include claims that would be
|
||||
infringed only as a consequence of further modification of this
|
||||
implementation. If you or your agent or exclusive licensee institute or
|
||||
order or agree to the institution of patent litigation against any
|
||||
entity (including a cross-claim or counterclaim in a lawsuit) alleging
|
||||
that this implementation of Go or any code incorporated within this
|
||||
implementation of Go constitutes direct or contributory patent
|
||||
infringement, or inducement of patent infringement, then any patent
|
||||
rights granted to you under this License for this implementation of Go
|
||||
shall terminate as of the date such litigation is filed.
|
|
@ -0,0 +1,17 @@
|
|||
# Go terminal/console support
|
||||
|
||||
This repository provides Go terminal and console support packages.
|
||||
|
||||
## Download/Install
|
||||
|
||||
The easiest way to install is to run `go get -u golang.org/x/term`. You can
|
||||
also manually git clone the repository to `$GOPATH/src/golang.org/x/term`.
|
||||
|
||||
## Report Issues / Send Patches
|
||||
|
||||
This repository uses Gerrit for code changes. To learn how to submit changes to
|
||||
this repository, see https://golang.org/doc/contribute.html.
|
||||
|
||||
The main issue tracker for the term repository is located at
|
||||
https://github.com/golang/go/issues. Prefix your issue with "x/term:" in the
|
||||
subject line, so it is easy to find.
|
|
@ -0,0 +1,5 @@
|
|||
module golang.org/x/term
|
||||
|
||||
go 1.11
|
||||
|
||||
require golang.org/x/sys v0.0.0-20201119102817-f84b799fce68
|
|
@ -0,0 +1,2 @@
|
|||
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 h1:nxC68pudNYkKU6jWhgrqdreuFiOQWj1Fs7T3VrH4Pjw=
|
||||
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
36
vendor/golang.org/x/crypto/ssh/terminal/util_plan9.go → vendor/golang.org/x/term/term.go
generated
vendored
36
vendor/golang.org/x/crypto/ssh/terminal/util_plan9.go → vendor/golang.org/x/term/term.go
generated
vendored
|
@ -1,8 +1,8 @@
|
|||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package terminal provides support functions for dealing with terminals, as
|
||||
// Package term provides support functions for dealing with terminals, as
|
||||
// commonly found on UNIX systems.
|
||||
//
|
||||
// Putting a terminal into raw mode is the most common requirement:
|
||||
|
@ -12,47 +12,47 @@
|
|||
// panic(err)
|
||||
// }
|
||||
// defer terminal.Restore(0, oldState)
|
||||
package terminal
|
||||
package term
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"runtime"
|
||||
)
|
||||
|
||||
type State struct{}
|
||||
// State contains the state of a terminal.
|
||||
type State struct {
|
||||
state
|
||||
}
|
||||
|
||||
// IsTerminal returns whether the given file descriptor is a terminal.
|
||||
func IsTerminal(fd int) bool {
|
||||
return false
|
||||
return isTerminal(fd)
|
||||
}
|
||||
|
||||
// MakeRaw put the terminal connected to the given file descriptor into raw
|
||||
// MakeRaw puts the terminal connected to the given file descriptor into raw
|
||||
// mode and returns the previous state of the terminal so that it can be
|
||||
// restored.
|
||||
func MakeRaw(fd int) (*State, error) {
|
||||
return nil, fmt.Errorf("terminal: MakeRaw not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
return makeRaw(fd)
|
||||
}
|
||||
|
||||
// GetState returns the current state of a terminal which may be useful to
|
||||
// restore the terminal after a signal.
|
||||
func GetState(fd int) (*State, error) {
|
||||
return nil, fmt.Errorf("terminal: GetState not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
return getState(fd)
|
||||
}
|
||||
|
||||
// Restore restores the terminal connected to the given file descriptor to a
|
||||
// previous state.
|
||||
func Restore(fd int, state *State) error {
|
||||
return fmt.Errorf("terminal: Restore not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
func Restore(fd int, oldState *State) error {
|
||||
return restore(fd, oldState)
|
||||
}
|
||||
|
||||
// GetSize returns the dimensions of the given terminal.
|
||||
// GetSize returns the visible dimensions of the given terminal.
|
||||
//
|
||||
// These dimensions don't include any scrollback buffer height.
|
||||
func GetSize(fd int) (width, height int, err error) {
|
||||
return 0, 0, fmt.Errorf("terminal: GetSize not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
return getSize(fd)
|
||||
}
|
||||
|
||||
// ReadPassword reads a line of input from a terminal without local echo. This
|
||||
// is commonly used for inputting passwords and other sensitive data. The slice
|
||||
// returned does not include the \n.
|
||||
func ReadPassword(fd int) ([]byte, error) {
|
||||
return nil, fmt.Errorf("terminal: ReadPassword not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
return readPassword(fd)
|
||||
}
|
|
@ -0,0 +1,42 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package term
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"runtime"
|
||||
|
||||
"golang.org/x/sys/plan9"
|
||||
)
|
||||
|
||||
type state struct{}
|
||||
|
||||
func isTerminal(fd int) bool {
|
||||
path, err := plan9.Fd2path(fd)
|
||||
if err != nil {
|
||||
return false
|
||||
}
|
||||
return path == "/dev/cons" || path == "/mnt/term/dev/cons"
|
||||
}
|
||||
|
||||
func makeRaw(fd int) (*State, error) {
|
||||
return nil, fmt.Errorf("terminal: MakeRaw not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
||||
|
||||
func getState(fd int) (*State, error) {
|
||||
return nil, fmt.Errorf("terminal: GetState not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
||||
|
||||
func restore(fd int, state *State) error {
|
||||
return fmt.Errorf("terminal: Restore not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
||||
|
||||
func getSize(fd int) (width, height int, err error) {
|
||||
return 0, 0, fmt.Errorf("terminal: GetSize not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
||||
|
||||
func readPassword(fd int) ([]byte, error) {
|
||||
return nil, fmt.Errorf("terminal: ReadPassword not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
|
@ -1,32 +1,27 @@
|
|||
// Copyright 2015 The Go Authors. All rights reserved.
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build solaris
|
||||
|
||||
package terminal // import "golang.org/x/crypto/ssh/terminal"
|
||||
package term
|
||||
|
||||
import (
|
||||
"golang.org/x/sys/unix"
|
||||
"io"
|
||||
"syscall"
|
||||
|
||||
"golang.org/x/sys/unix"
|
||||
)
|
||||
|
||||
// State contains the state of a terminal.
|
||||
type State struct {
|
||||
type state struct {
|
||||
termios unix.Termios
|
||||
}
|
||||
|
||||
// IsTerminal returns whether the given file descriptor is a terminal.
|
||||
func IsTerminal(fd int) bool {
|
||||
func isTerminal(fd int) bool {
|
||||
_, err := unix.IoctlGetTermio(fd, unix.TCGETA)
|
||||
return err == nil
|
||||
}
|
||||
|
||||
// ReadPassword reads a line of input from a terminal without local echo. This
|
||||
// is commonly used for inputting passwords and other sensitive data. The slice
|
||||
// returned does not include the \n.
|
||||
func ReadPassword(fd int) ([]byte, error) {
|
||||
func readPassword(fd int) ([]byte, error) {
|
||||
// see also: http://src.illumos.org/source/xref/illumos-gate/usr/src/lib/libast/common/uwin/getpass.c
|
||||
val, err := unix.IoctlGetTermios(fd, unix.TCGETS)
|
||||
if err != nil {
|
||||
|
@ -70,17 +65,14 @@ func ReadPassword(fd int) ([]byte, error) {
|
|||
return ret, nil
|
||||
}
|
||||
|
||||
// MakeRaw puts the terminal connected to the given file descriptor into raw
|
||||
// mode and returns the previous state of the terminal so that it can be
|
||||
// restored.
|
||||
// see http://cr.illumos.org/~webrev/andy_js/1060/
|
||||
func MakeRaw(fd int) (*State, error) {
|
||||
func makeRaw(fd int) (*State, error) {
|
||||
// see http://cr.illumos.org/~webrev/andy_js/1060/
|
||||
termios, err := unix.IoctlGetTermios(fd, unix.TCGETS)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
oldState := State{termios: *termios}
|
||||
oldState := State{state{termios: *termios}}
|
||||
|
||||
termios.Iflag &^= unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON
|
||||
termios.Oflag &^= unix.OPOST
|
||||
|
@ -97,25 +89,20 @@ func MakeRaw(fd int) (*State, error) {
|
|||
return &oldState, nil
|
||||
}
|
||||
|
||||
// Restore restores the terminal connected to the given file descriptor to a
|
||||
// previous state.
|
||||
func Restore(fd int, oldState *State) error {
|
||||
func restore(fd int, oldState *State) error {
|
||||
return unix.IoctlSetTermios(fd, unix.TCSETS, &oldState.termios)
|
||||
}
|
||||
|
||||
// GetState returns the current state of a terminal which may be useful to
|
||||
// restore the terminal after a signal.
|
||||
func GetState(fd int) (*State, error) {
|
||||
func getState(fd int) (*State, error) {
|
||||
termios, err := unix.IoctlGetTermios(fd, unix.TCGETS)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return &State{termios: *termios}, nil
|
||||
return &State{state{termios: *termios}}, nil
|
||||
}
|
||||
|
||||
// GetSize returns the dimensions of the given terminal.
|
||||
func GetSize(fd int) (width, height int, err error) {
|
||||
func getSize(fd int) (width, height int, err error) {
|
||||
ws, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
|
||||
if err != nil {
|
||||
return 0, 0, err
|
47
vendor/golang.org/x/crypto/ssh/terminal/util.go → vendor/golang.org/x/term/term_unix.go
generated
vendored
47
vendor/golang.org/x/crypto/ssh/terminal/util.go → vendor/golang.org/x/term/term_unix.go
generated
vendored
|
@ -1,46 +1,31 @@
|
|||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build aix darwin dragonfly freebsd linux,!appengine netbsd openbsd
|
||||
// +build aix darwin dragonfly freebsd linux netbsd openbsd zos
|
||||
|
||||
// Package terminal provides support functions for dealing with terminals, as
|
||||
// commonly found on UNIX systems.
|
||||
//
|
||||
// Putting a terminal into raw mode is the most common requirement:
|
||||
//
|
||||
// oldState, err := terminal.MakeRaw(0)
|
||||
// if err != nil {
|
||||
// panic(err)
|
||||
// }
|
||||
// defer terminal.Restore(0, oldState)
|
||||
package terminal // import "golang.org/x/crypto/ssh/terminal"
|
||||
package term
|
||||
|
||||
import (
|
||||
"golang.org/x/sys/unix"
|
||||
)
|
||||
|
||||
// State contains the state of a terminal.
|
||||
type State struct {
|
||||
type state struct {
|
||||
termios unix.Termios
|
||||
}
|
||||
|
||||
// IsTerminal returns whether the given file descriptor is a terminal.
|
||||
func IsTerminal(fd int) bool {
|
||||
func isTerminal(fd int) bool {
|
||||
_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
|
||||
return err == nil
|
||||
}
|
||||
|
||||
// MakeRaw put the terminal connected to the given file descriptor into raw
|
||||
// mode and returns the previous state of the terminal so that it can be
|
||||
// restored.
|
||||
func MakeRaw(fd int) (*State, error) {
|
||||
func makeRaw(fd int) (*State, error) {
|
||||
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
oldState := State{termios: *termios}
|
||||
oldState := State{state{termios: *termios}}
|
||||
|
||||
// This attempts to replicate the behaviour documented for cfmakeraw in
|
||||
// the termios(3) manpage.
|
||||
|
@ -58,25 +43,20 @@ func MakeRaw(fd int) (*State, error) {
|
|||
return &oldState, nil
|
||||
}
|
||||
|
||||
// GetState returns the current state of a terminal which may be useful to
|
||||
// restore the terminal after a signal.
|
||||
func GetState(fd int) (*State, error) {
|
||||
func getState(fd int) (*State, error) {
|
||||
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return &State{termios: *termios}, nil
|
||||
return &State{state{termios: *termios}}, nil
|
||||
}
|
||||
|
||||
// Restore restores the terminal connected to the given file descriptor to a
|
||||
// previous state.
|
||||
func Restore(fd int, state *State) error {
|
||||
func restore(fd int, state *State) error {
|
||||
return unix.IoctlSetTermios(fd, ioctlWriteTermios, &state.termios)
|
||||
}
|
||||
|
||||
// GetSize returns the dimensions of the given terminal.
|
||||
func GetSize(fd int) (width, height int, err error) {
|
||||
func getSize(fd int) (width, height int, err error) {
|
||||
ws, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
|
||||
if err != nil {
|
||||
return -1, -1, err
|
||||
|
@ -91,10 +71,7 @@ func (r passwordReader) Read(buf []byte) (int, error) {
|
|||
return unix.Read(int(r), buf)
|
||||
}
|
||||
|
||||
// ReadPassword reads a line of input from a terminal without local echo. This
|
||||
// is commonly used for inputting passwords and other sensitive data. The slice
|
||||
// returned does not include the \n.
|
||||
func ReadPassword(fd int) ([]byte, error) {
|
||||
func readPassword(fd int) ([]byte, error) {
|
||||
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
|
||||
if err != nil {
|
||||
return nil, err
|
|
@ -1,8 +1,8 @@
|
|||
// Copyright 2013 The Go Authors. All rights reserved.
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package terminal
|
||||
package term
|
||||
|
||||
import "golang.org/x/sys/unix"
|
||||
|
|
@ -4,7 +4,7 @@
|
|||
|
||||
// +build darwin dragonfly freebsd netbsd openbsd
|
||||
|
||||
package terminal
|
||||
package term
|
||||
|
||||
import "golang.org/x/sys/unix"
|
||||
|
|
@ -1,10 +1,8 @@
|
|||
// Copyright 2018 The Go Authors. All rights reserved.
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build aix
|
||||
|
||||
package terminal
|
||||
package term
|
||||
|
||||
import "golang.org/x/sys/unix"
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
// Copyright 2020 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package term
|
||||
|
||||
import "golang.org/x/sys/unix"
|
||||
|
||||
const ioctlReadTermios = unix.TCGETS
|
||||
const ioctlWriteTermios = unix.TCSETS
|
|
@ -0,0 +1,38 @@
|
|||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!zos,!windows,!solaris,!plan9
|
||||
|
||||
package term
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"runtime"
|
||||
)
|
||||
|
||||
type state struct{}
|
||||
|
||||
func isTerminal(fd int) bool {
|
||||
return false
|
||||
}
|
||||
|
||||
func makeRaw(fd int) (*State, error) {
|
||||
return nil, fmt.Errorf("terminal: MakeRaw not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
||||
|
||||
func getState(fd int) (*State, error) {
|
||||
return nil, fmt.Errorf("terminal: GetState not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
||||
|
||||
func restore(fd int, state *State) error {
|
||||
return fmt.Errorf("terminal: Restore not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
||||
|
||||
func getSize(fd int) (width, height int, err error) {
|
||||
return 0, 0, fmt.Errorf("terminal: GetSize not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
||||
|
||||
func readPassword(fd int) ([]byte, error) {
|
||||
return nil, fmt.Errorf("terminal: ReadPassword not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
|
||||
}
|
|
@ -1,20 +1,8 @@
|
|||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Copyright 2019 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build windows
|
||||
|
||||
// Package terminal provides support functions for dealing with terminals, as
|
||||
// commonly found on UNIX systems.
|
||||
//
|
||||
// Putting a terminal into raw mode is the most common requirement:
|
||||
//
|
||||
// oldState, err := terminal.MakeRaw(0)
|
||||
// if err != nil {
|
||||
// panic(err)
|
||||
// }
|
||||
// defer terminal.Restore(0, oldState)
|
||||
package terminal
|
||||
package term
|
||||
|
||||
import (
|
||||
"os"
|
||||
|
@ -22,21 +10,17 @@ import (
|
|||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
type State struct {
|
||||
type state struct {
|
||||
mode uint32
|
||||
}
|
||||
|
||||
// IsTerminal returns whether the given file descriptor is a terminal.
|
||||
func IsTerminal(fd int) bool {
|
||||
func isTerminal(fd int) bool {
|
||||
var st uint32
|
||||
err := windows.GetConsoleMode(windows.Handle(fd), &st)
|
||||
return err == nil
|
||||
}
|
||||
|
||||
// MakeRaw put the terminal connected to the given file descriptor into raw
|
||||
// mode and returns the previous state of the terminal so that it can be
|
||||
// restored.
|
||||
func MakeRaw(fd int) (*State, error) {
|
||||
func makeRaw(fd int) (*State, error) {
|
||||
var st uint32
|
||||
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
|
||||
return nil, err
|
||||
|
@ -45,29 +29,22 @@ func MakeRaw(fd int) (*State, error) {
|
|||
if err := windows.SetConsoleMode(windows.Handle(fd), raw); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &State{st}, nil
|
||||
return &State{state{st}}, nil
|
||||
}
|
||||
|
||||
// GetState returns the current state of a terminal which may be useful to
|
||||
// restore the terminal after a signal.
|
||||
func GetState(fd int) (*State, error) {
|
||||
func getState(fd int) (*State, error) {
|
||||
var st uint32
|
||||
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &State{st}, nil
|
||||
return &State{state{st}}, nil
|
||||
}
|
||||
|
||||
// Restore restores the terminal connected to the given file descriptor to a
|
||||
// previous state.
|
||||
func Restore(fd int, state *State) error {
|
||||
func restore(fd int, state *State) error {
|
||||
return windows.SetConsoleMode(windows.Handle(fd), state.mode)
|
||||
}
|
||||
|
||||
// GetSize returns the visible dimensions of the given terminal.
|
||||
//
|
||||
// These dimensions don't include any scrollback buffer height.
|
||||
func GetSize(fd int) (width, height int, err error) {
|
||||
func getSize(fd int) (width, height int, err error) {
|
||||
var info windows.ConsoleScreenBufferInfo
|
||||
if err := windows.GetConsoleScreenBufferInfo(windows.Handle(fd), &info); err != nil {
|
||||
return 0, 0, err
|
||||
|
@ -75,10 +52,7 @@ func GetSize(fd int) (width, height int, err error) {
|
|||
return int(info.Window.Right - info.Window.Left + 1), int(info.Window.Bottom - info.Window.Top + 1), nil
|
||||
}
|
||||
|
||||
// ReadPassword reads a line of input from a terminal without local echo. This
|
||||
// is commonly used for inputting passwords and other sensitive data. The slice
|
||||
// returned does not include the \n.
|
||||
func ReadPassword(fd int) ([]byte, error) {
|
||||
func readPassword(fd int) ([]byte, error) {
|
||||
var st uint32
|
||||
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
|
||||
return nil, err
|
|
@ -0,0 +1,987 @@
|
|||
// Copyright 2011 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 term
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"io"
|
||||
"runtime"
|
||||
"strconv"
|
||||
"sync"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// EscapeCodes contains escape sequences that can be written to the terminal in
|
||||
// order to achieve different styles of text.
|
||||
type EscapeCodes struct {
|
||||
// Foreground colors
|
||||
Black, Red, Green, Yellow, Blue, Magenta, Cyan, White []byte
|
||||
|
||||
// Reset all attributes
|
||||
Reset []byte
|
||||
}
|
||||
|
||||
var vt100EscapeCodes = EscapeCodes{
|
||||
Black: []byte{keyEscape, '[', '3', '0', 'm'},
|
||||
Red: []byte{keyEscape, '[', '3', '1', 'm'},
|
||||
Green: []byte{keyEscape, '[', '3', '2', 'm'},
|
||||
Yellow: []byte{keyEscape, '[', '3', '3', 'm'},
|
||||
Blue: []byte{keyEscape, '[', '3', '4', 'm'},
|
||||
Magenta: []byte{keyEscape, '[', '3', '5', 'm'},
|
||||
Cyan: []byte{keyEscape, '[', '3', '6', 'm'},
|
||||
White: []byte{keyEscape, '[', '3', '7', 'm'},
|
||||
|
||||
Reset: []byte{keyEscape, '[', '0', 'm'},
|
||||
}
|
||||
|
||||
// Terminal contains the state for running a VT100 terminal that is capable of
|
||||
// reading lines of input.
|
||||
type Terminal struct {
|
||||
// AutoCompleteCallback, if non-null, is called for each keypress with
|
||||
// the full input line and the current position of the cursor (in
|
||||
// bytes, as an index into |line|). If it returns ok=false, the key
|
||||
// press is processed normally. Otherwise it returns a replacement line
|
||||
// and the new cursor position.
|
||||
AutoCompleteCallback func(line string, pos int, key rune) (newLine string, newPos int, ok bool)
|
||||
|
||||
// Escape contains a pointer to the escape codes for this terminal.
|
||||
// It's always a valid pointer, although the escape codes themselves
|
||||
// may be empty if the terminal doesn't support them.
|
||||
Escape *EscapeCodes
|
||||
|
||||
// lock protects the terminal and the state in this object from
|
||||
// concurrent processing of a key press and a Write() call.
|
||||
lock sync.Mutex
|
||||
|
||||
c io.ReadWriter
|
||||
prompt []rune
|
||||
|
||||
// line is the current line being entered.
|
||||
line []rune
|
||||
// pos is the logical position of the cursor in line
|
||||
pos int
|
||||
// echo is true if local echo is enabled
|
||||
echo bool
|
||||
// pasteActive is true iff there is a bracketed paste operation in
|
||||
// progress.
|
||||
pasteActive bool
|
||||
|
||||
// cursorX contains the current X value of the cursor where the left
|
||||
// edge is 0. cursorY contains the row number where the first row of
|
||||
// the current line is 0.
|
||||
cursorX, cursorY int
|
||||
// maxLine is the greatest value of cursorY so far.
|
||||
maxLine int
|
||||
|
||||
termWidth, termHeight int
|
||||
|
||||
// outBuf contains the terminal data to be sent.
|
||||
outBuf []byte
|
||||
// remainder contains the remainder of any partial key sequences after
|
||||
// a read. It aliases into inBuf.
|
||||
remainder []byte
|
||||
inBuf [256]byte
|
||||
|
||||
// history contains previously entered commands so that they can be
|
||||
// accessed with the up and down keys.
|
||||
history stRingBuffer
|
||||
// historyIndex stores the currently accessed history entry, where zero
|
||||
// means the immediately previous entry.
|
||||
historyIndex int
|
||||
// When navigating up and down the history it's possible to return to
|
||||
// the incomplete, initial line. That value is stored in
|
||||
// historyPending.
|
||||
historyPending string
|
||||
}
|
||||
|
||||
// NewTerminal runs a VT100 terminal on the given ReadWriter. If the ReadWriter is
|
||||
// a local terminal, that terminal must first have been put into raw mode.
|
||||
// prompt is a string that is written at the start of each input line (i.e.
|
||||
// "> ").
|
||||
func NewTerminal(c io.ReadWriter, prompt string) *Terminal {
|
||||
return &Terminal{
|
||||
Escape: &vt100EscapeCodes,
|
||||
c: c,
|
||||
prompt: []rune(prompt),
|
||||
termWidth: 80,
|
||||
termHeight: 24,
|
||||
echo: true,
|
||||
historyIndex: -1,
|
||||
}
|
||||
}
|
||||
|
||||
const (
|
||||
keyCtrlC = 3
|
||||
keyCtrlD = 4
|
||||
keyCtrlU = 21
|
||||
keyEnter = '\r'
|
||||
keyEscape = 27
|
||||
keyBackspace = 127
|
||||
keyUnknown = 0xd800 /* UTF-16 surrogate area */ + iota
|
||||
keyUp
|
||||
keyDown
|
||||
keyLeft
|
||||
keyRight
|
||||
keyAltLeft
|
||||
keyAltRight
|
||||
keyHome
|
||||
keyEnd
|
||||
keyDeleteWord
|
||||
keyDeleteLine
|
||||
keyClearScreen
|
||||
keyPasteStart
|
||||
keyPasteEnd
|
||||
)
|
||||
|
||||
var (
|
||||
crlf = []byte{'\r', '\n'}
|
||||
pasteStart = []byte{keyEscape, '[', '2', '0', '0', '~'}
|
||||
pasteEnd = []byte{keyEscape, '[', '2', '0', '1', '~'}
|
||||
)
|
||||
|
||||
// bytesToKey tries to parse a key sequence from b. If successful, it returns
|
||||
// the key and the remainder of the input. Otherwise it returns utf8.RuneError.
|
||||
func bytesToKey(b []byte, pasteActive bool) (rune, []byte) {
|
||||
if len(b) == 0 {
|
||||
return utf8.RuneError, nil
|
||||
}
|
||||
|
||||
if !pasteActive {
|
||||
switch b[0] {
|
||||
case 1: // ^A
|
||||
return keyHome, b[1:]
|
||||
case 2: // ^B
|
||||
return keyLeft, b[1:]
|
||||
case 5: // ^E
|
||||
return keyEnd, b[1:]
|
||||
case 6: // ^F
|
||||
return keyRight, b[1:]
|
||||
case 8: // ^H
|
||||
return keyBackspace, b[1:]
|
||||
case 11: // ^K
|
||||
return keyDeleteLine, b[1:]
|
||||
case 12: // ^L
|
||||
return keyClearScreen, b[1:]
|
||||
case 23: // ^W
|
||||
return keyDeleteWord, b[1:]
|
||||
case 14: // ^N
|
||||
return keyDown, b[1:]
|
||||
case 16: // ^P
|
||||
return keyUp, b[1:]
|
||||
}
|
||||
}
|
||||
|
||||
if b[0] != keyEscape {
|
||||
if !utf8.FullRune(b) {
|
||||
return utf8.RuneError, b
|
||||
}
|
||||
r, l := utf8.DecodeRune(b)
|
||||
return r, b[l:]
|
||||
}
|
||||
|
||||
if !pasteActive && len(b) >= 3 && b[0] == keyEscape && b[1] == '[' {
|
||||
switch b[2] {
|
||||
case 'A':
|
||||
return keyUp, b[3:]
|
||||
case 'B':
|
||||
return keyDown, b[3:]
|
||||
case 'C':
|
||||
return keyRight, b[3:]
|
||||
case 'D':
|
||||
return keyLeft, b[3:]
|
||||
case 'H':
|
||||
return keyHome, b[3:]
|
||||
case 'F':
|
||||
return keyEnd, b[3:]
|
||||
}
|
||||
}
|
||||
|
||||
if !pasteActive && len(b) >= 6 && b[0] == keyEscape && b[1] == '[' && b[2] == '1' && b[3] == ';' && b[4] == '3' {
|
||||
switch b[5] {
|
||||
case 'C':
|
||||
return keyAltRight, b[6:]
|
||||
case 'D':
|
||||
return keyAltLeft, b[6:]
|
||||
}
|
||||
}
|
||||
|
||||
if !pasteActive && len(b) >= 6 && bytes.Equal(b[:6], pasteStart) {
|
||||
return keyPasteStart, b[6:]
|
||||
}
|
||||
|
||||
if pasteActive && len(b) >= 6 && bytes.Equal(b[:6], pasteEnd) {
|
||||
return keyPasteEnd, b[6:]
|
||||
}
|
||||
|
||||
// If we get here then we have a key that we don't recognise, or a
|
||||
// partial sequence. It's not clear how one should find the end of a
|
||||
// sequence without knowing them all, but it seems that [a-zA-Z~] only
|
||||
// appears at the end of a sequence.
|
||||
for i, c := range b[0:] {
|
||||
if c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c == '~' {
|
||||
return keyUnknown, b[i+1:]
|
||||
}
|
||||
}
|
||||
|
||||
return utf8.RuneError, b
|
||||
}
|
||||
|
||||
// queue appends data to the end of t.outBuf
|
||||
func (t *Terminal) queue(data []rune) {
|
||||
t.outBuf = append(t.outBuf, []byte(string(data))...)
|
||||
}
|
||||
|
||||
var eraseUnderCursor = []rune{' ', keyEscape, '[', 'D'}
|
||||
var space = []rune{' '}
|
||||
|
||||
func isPrintable(key rune) bool {
|
||||
isInSurrogateArea := key >= 0xd800 && key <= 0xdbff
|
||||
return key >= 32 && !isInSurrogateArea
|
||||
}
|
||||
|
||||
// moveCursorToPos appends data to t.outBuf which will move the cursor to the
|
||||
// given, logical position in the text.
|
||||
func (t *Terminal) moveCursorToPos(pos int) {
|
||||
if !t.echo {
|
||||
return
|
||||
}
|
||||
|
||||
x := visualLength(t.prompt) + pos
|
||||
y := x / t.termWidth
|
||||
x = x % t.termWidth
|
||||
|
||||
up := 0
|
||||
if y < t.cursorY {
|
||||
up = t.cursorY - y
|
||||
}
|
||||
|
||||
down := 0
|
||||
if y > t.cursorY {
|
||||
down = y - t.cursorY
|
||||
}
|
||||
|
||||
left := 0
|
||||
if x < t.cursorX {
|
||||
left = t.cursorX - x
|
||||
}
|
||||
|
||||
right := 0
|
||||
if x > t.cursorX {
|
||||
right = x - t.cursorX
|
||||
}
|
||||
|
||||
t.cursorX = x
|
||||
t.cursorY = y
|
||||
t.move(up, down, left, right)
|
||||
}
|
||||
|
||||
func (t *Terminal) move(up, down, left, right int) {
|
||||
m := []rune{}
|
||||
|
||||
// 1 unit up can be expressed as ^[[A or ^[A
|
||||
// 5 units up can be expressed as ^[[5A
|
||||
|
||||
if up == 1 {
|
||||
m = append(m, keyEscape, '[', 'A')
|
||||
} else if up > 1 {
|
||||
m = append(m, keyEscape, '[')
|
||||
m = append(m, []rune(strconv.Itoa(up))...)
|
||||
m = append(m, 'A')
|
||||
}
|
||||
|
||||
if down == 1 {
|
||||
m = append(m, keyEscape, '[', 'B')
|
||||
} else if down > 1 {
|
||||
m = append(m, keyEscape, '[')
|
||||
m = append(m, []rune(strconv.Itoa(down))...)
|
||||
m = append(m, 'B')
|
||||
}
|
||||
|
||||
if right == 1 {
|
||||
m = append(m, keyEscape, '[', 'C')
|
||||
} else if right > 1 {
|
||||
m = append(m, keyEscape, '[')
|
||||
m = append(m, []rune(strconv.Itoa(right))...)
|
||||
m = append(m, 'C')
|
||||
}
|
||||
|
||||
if left == 1 {
|
||||
m = append(m, keyEscape, '[', 'D')
|
||||
} else if left > 1 {
|
||||
m = append(m, keyEscape, '[')
|
||||
m = append(m, []rune(strconv.Itoa(left))...)
|
||||
m = append(m, 'D')
|
||||
}
|
||||
|
||||
t.queue(m)
|
||||
}
|
||||
|
||||
func (t *Terminal) clearLineToRight() {
|
||||
op := []rune{keyEscape, '[', 'K'}
|
||||
t.queue(op)
|
||||
}
|
||||
|
||||
const maxLineLength = 4096
|
||||
|
||||
func (t *Terminal) setLine(newLine []rune, newPos int) {
|
||||
if t.echo {
|
||||
t.moveCursorToPos(0)
|
||||
t.writeLine(newLine)
|
||||
for i := len(newLine); i < len(t.line); i++ {
|
||||
t.writeLine(space)
|
||||
}
|
||||
t.moveCursorToPos(newPos)
|
||||
}
|
||||
t.line = newLine
|
||||
t.pos = newPos
|
||||
}
|
||||
|
||||
func (t *Terminal) advanceCursor(places int) {
|
||||
t.cursorX += places
|
||||
t.cursorY += t.cursorX / t.termWidth
|
||||
if t.cursorY > t.maxLine {
|
||||
t.maxLine = t.cursorY
|
||||
}
|
||||
t.cursorX = t.cursorX % t.termWidth
|
||||
|
||||
if places > 0 && t.cursorX == 0 {
|
||||
// Normally terminals will advance the current position
|
||||
// when writing a character. But that doesn't happen
|
||||
// for the last character in a line. However, when
|
||||
// writing a character (except a new line) that causes
|
||||
// a line wrap, the position will be advanced two
|
||||
// places.
|
||||
//
|
||||
// So, if we are stopping at the end of a line, we
|
||||
// need to write a newline so that our cursor can be
|
||||
// advanced to the next line.
|
||||
t.outBuf = append(t.outBuf, '\r', '\n')
|
||||
}
|
||||
}
|
||||
|
||||
func (t *Terminal) eraseNPreviousChars(n int) {
|
||||
if n == 0 {
|
||||
return
|
||||
}
|
||||
|
||||
if t.pos < n {
|
||||
n = t.pos
|
||||
}
|
||||
t.pos -= n
|
||||
t.moveCursorToPos(t.pos)
|
||||
|
||||
copy(t.line[t.pos:], t.line[n+t.pos:])
|
||||
t.line = t.line[:len(t.line)-n]
|
||||
if t.echo {
|
||||
t.writeLine(t.line[t.pos:])
|
||||
for i := 0; i < n; i++ {
|
||||
t.queue(space)
|
||||
}
|
||||
t.advanceCursor(n)
|
||||
t.moveCursorToPos(t.pos)
|
||||
}
|
||||
}
|
||||
|
||||
// countToLeftWord returns then number of characters from the cursor to the
|
||||
// start of the previous word.
|
||||
func (t *Terminal) countToLeftWord() int {
|
||||
if t.pos == 0 {
|
||||
return 0
|
||||
}
|
||||
|
||||
pos := t.pos - 1
|
||||
for pos > 0 {
|
||||
if t.line[pos] != ' ' {
|
||||
break
|
||||
}
|
||||
pos--
|
||||
}
|
||||
for pos > 0 {
|
||||
if t.line[pos] == ' ' {
|
||||
pos++
|
||||
break
|
||||
}
|
||||
pos--
|
||||
}
|
||||
|
||||
return t.pos - pos
|
||||
}
|
||||
|
||||
// countToRightWord returns then number of characters from the cursor to the
|
||||
// start of the next word.
|
||||
func (t *Terminal) countToRightWord() int {
|
||||
pos := t.pos
|
||||
for pos < len(t.line) {
|
||||
if t.line[pos] == ' ' {
|
||||
break
|
||||
}
|
||||
pos++
|
||||
}
|
||||
for pos < len(t.line) {
|
||||
if t.line[pos] != ' ' {
|
||||
break
|
||||
}
|
||||
pos++
|
||||
}
|
||||
return pos - t.pos
|
||||
}
|
||||
|
||||
// visualLength returns the number of visible glyphs in s.
|
||||
func visualLength(runes []rune) int {
|
||||
inEscapeSeq := false
|
||||
length := 0
|
||||
|
||||
for _, r := range runes {
|
||||
switch {
|
||||
case inEscapeSeq:
|
||||
if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') {
|
||||
inEscapeSeq = false
|
||||
}
|
||||
case r == '\x1b':
|
||||
inEscapeSeq = true
|
||||
default:
|
||||
length++
|
||||
}
|
||||
}
|
||||
|
||||
return length
|
||||
}
|
||||
|
||||
// handleKey processes the given key and, optionally, returns a line of text
|
||||
// that the user has entered.
|
||||
func (t *Terminal) handleKey(key rune) (line string, ok bool) {
|
||||
if t.pasteActive && key != keyEnter {
|
||||
t.addKeyToLine(key)
|
||||
return
|
||||
}
|
||||
|
||||
switch key {
|
||||
case keyBackspace:
|
||||
if t.pos == 0 {
|
||||
return
|
||||
}
|
||||
t.eraseNPreviousChars(1)
|
||||
case keyAltLeft:
|
||||
// move left by a word.
|
||||
t.pos -= t.countToLeftWord()
|
||||
t.moveCursorToPos(t.pos)
|
||||
case keyAltRight:
|
||||
// move right by a word.
|
||||
t.pos += t.countToRightWord()
|
||||
t.moveCursorToPos(t.pos)
|
||||
case keyLeft:
|
||||
if t.pos == 0 {
|
||||
return
|
||||
}
|
||||
t.pos--
|
||||
t.moveCursorToPos(t.pos)
|
||||
case keyRight:
|
||||
if t.pos == len(t.line) {
|
||||
return
|
||||
}
|
||||
t.pos++
|
||||
t.moveCursorToPos(t.pos)
|
||||
case keyHome:
|
||||
if t.pos == 0 {
|
||||
return
|
||||
}
|
||||
t.pos = 0
|
||||
t.moveCursorToPos(t.pos)
|
||||
case keyEnd:
|
||||
if t.pos == len(t.line) {
|
||||
return
|
||||
}
|
||||
t.pos = len(t.line)
|
||||
t.moveCursorToPos(t.pos)
|
||||
case keyUp:
|
||||
entry, ok := t.history.NthPreviousEntry(t.historyIndex + 1)
|
||||
if !ok {
|
||||
return "", false
|
||||
}
|
||||
if t.historyIndex == -1 {
|
||||
t.historyPending = string(t.line)
|
||||
}
|
||||
t.historyIndex++
|
||||
runes := []rune(entry)
|
||||
t.setLine(runes, len(runes))
|
||||
case keyDown:
|
||||
switch t.historyIndex {
|
||||
case -1:
|
||||
return
|
||||
case 0:
|
||||
runes := []rune(t.historyPending)
|
||||
t.setLine(runes, len(runes))
|
||||
t.historyIndex--
|
||||
default:
|
||||
entry, ok := t.history.NthPreviousEntry(t.historyIndex - 1)
|
||||
if ok {
|
||||
t.historyIndex--
|
||||
runes := []rune(entry)
|
||||
t.setLine(runes, len(runes))
|
||||
}
|
||||
}
|
||||
case keyEnter:
|
||||
t.moveCursorToPos(len(t.line))
|
||||
t.queue([]rune("\r\n"))
|
||||
line = string(t.line)
|
||||
ok = true
|
||||
t.line = t.line[:0]
|
||||
t.pos = 0
|
||||
t.cursorX = 0
|
||||
t.cursorY = 0
|
||||
t.maxLine = 0
|
||||
case keyDeleteWord:
|
||||
// Delete zero or more spaces and then one or more characters.
|
||||
t.eraseNPreviousChars(t.countToLeftWord())
|
||||
case keyDeleteLine:
|
||||
// Delete everything from the current cursor position to the
|
||||
// end of line.
|
||||
for i := t.pos; i < len(t.line); i++ {
|
||||
t.queue(space)
|
||||
t.advanceCursor(1)
|
||||
}
|
||||
t.line = t.line[:t.pos]
|
||||
t.moveCursorToPos(t.pos)
|
||||
case keyCtrlD:
|
||||
// Erase the character under the current position.
|
||||
// The EOF case when the line is empty is handled in
|
||||
// readLine().
|
||||
if t.pos < len(t.line) {
|
||||
t.pos++
|
||||
t.eraseNPreviousChars(1)
|
||||
}
|
||||
case keyCtrlU:
|
||||
t.eraseNPreviousChars(t.pos)
|
||||
case keyClearScreen:
|
||||
// Erases the screen and moves the cursor to the home position.
|
||||
t.queue([]rune("\x1b[2J\x1b[H"))
|
||||
t.queue(t.prompt)
|
||||
t.cursorX, t.cursorY = 0, 0
|
||||
t.advanceCursor(visualLength(t.prompt))
|
||||
t.setLine(t.line, t.pos)
|
||||
default:
|
||||
if t.AutoCompleteCallback != nil {
|
||||
prefix := string(t.line[:t.pos])
|
||||
suffix := string(t.line[t.pos:])
|
||||
|
||||
t.lock.Unlock()
|
||||
newLine, newPos, completeOk := t.AutoCompleteCallback(prefix+suffix, len(prefix), key)
|
||||
t.lock.Lock()
|
||||
|
||||
if completeOk {
|
||||
t.setLine([]rune(newLine), utf8.RuneCount([]byte(newLine)[:newPos]))
|
||||
return
|
||||
}
|
||||
}
|
||||
if !isPrintable(key) {
|
||||
return
|
||||
}
|
||||
if len(t.line) == maxLineLength {
|
||||
return
|
||||
}
|
||||
t.addKeyToLine(key)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// addKeyToLine inserts the given key at the current position in the current
|
||||
// line.
|
||||
func (t *Terminal) addKeyToLine(key rune) {
|
||||
if len(t.line) == cap(t.line) {
|
||||
newLine := make([]rune, len(t.line), 2*(1+len(t.line)))
|
||||
copy(newLine, t.line)
|
||||
t.line = newLine
|
||||
}
|
||||
t.line = t.line[:len(t.line)+1]
|
||||
copy(t.line[t.pos+1:], t.line[t.pos:])
|
||||
t.line[t.pos] = key
|
||||
if t.echo {
|
||||
t.writeLine(t.line[t.pos:])
|
||||
}
|
||||
t.pos++
|
||||
t.moveCursorToPos(t.pos)
|
||||
}
|
||||
|
||||
func (t *Terminal) writeLine(line []rune) {
|
||||
for len(line) != 0 {
|
||||
remainingOnLine := t.termWidth - t.cursorX
|
||||
todo := len(line)
|
||||
if todo > remainingOnLine {
|
||||
todo = remainingOnLine
|
||||
}
|
||||
t.queue(line[:todo])
|
||||
t.advanceCursor(visualLength(line[:todo]))
|
||||
line = line[todo:]
|
||||
}
|
||||
}
|
||||
|
||||
// writeWithCRLF writes buf to w but replaces all occurrences of \n with \r\n.
|
||||
func writeWithCRLF(w io.Writer, buf []byte) (n int, err error) {
|
||||
for len(buf) > 0 {
|
||||
i := bytes.IndexByte(buf, '\n')
|
||||
todo := len(buf)
|
||||
if i >= 0 {
|
||||
todo = i
|
||||
}
|
||||
|
||||
var nn int
|
||||
nn, err = w.Write(buf[:todo])
|
||||
n += nn
|
||||
if err != nil {
|
||||
return n, err
|
||||
}
|
||||
buf = buf[todo:]
|
||||
|
||||
if i >= 0 {
|
||||
if _, err = w.Write(crlf); err != nil {
|
||||
return n, err
|
||||
}
|
||||
n++
|
||||
buf = buf[1:]
|
||||
}
|
||||
}
|
||||
|
||||
return n, nil
|
||||
}
|
||||
|
||||
func (t *Terminal) Write(buf []byte) (n int, err error) {
|
||||
t.lock.Lock()
|
||||
defer t.lock.Unlock()
|
||||
|
||||
if t.cursorX == 0 && t.cursorY == 0 {
|
||||
// This is the easy case: there's nothing on the screen that we
|
||||
// have to move out of the way.
|
||||
return writeWithCRLF(t.c, buf)
|
||||
}
|
||||
|
||||
// We have a prompt and possibly user input on the screen. We
|
||||
// have to clear it first.
|
||||
t.move(0 /* up */, 0 /* down */, t.cursorX /* left */, 0 /* right */)
|
||||
t.cursorX = 0
|
||||
t.clearLineToRight()
|
||||
|
||||
for t.cursorY > 0 {
|
||||
t.move(1 /* up */, 0, 0, 0)
|
||||
t.cursorY--
|
||||
t.clearLineToRight()
|
||||
}
|
||||
|
||||
if _, err = t.c.Write(t.outBuf); err != nil {
|
||||
return
|
||||
}
|
||||
t.outBuf = t.outBuf[:0]
|
||||
|
||||
if n, err = writeWithCRLF(t.c, buf); err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
t.writeLine(t.prompt)
|
||||
if t.echo {
|
||||
t.writeLine(t.line)
|
||||
}
|
||||
|
||||
t.moveCursorToPos(t.pos)
|
||||
|
||||
if _, err = t.c.Write(t.outBuf); err != nil {
|
||||
return
|
||||
}
|
||||
t.outBuf = t.outBuf[:0]
|
||||
return
|
||||
}
|
||||
|
||||
// ReadPassword temporarily changes the prompt and reads a password, without
|
||||
// echo, from the terminal.
|
||||
func (t *Terminal) ReadPassword(prompt string) (line string, err error) {
|
||||
t.lock.Lock()
|
||||
defer t.lock.Unlock()
|
||||
|
||||
oldPrompt := t.prompt
|
||||
t.prompt = []rune(prompt)
|
||||
t.echo = false
|
||||
|
||||
line, err = t.readLine()
|
||||
|
||||
t.prompt = oldPrompt
|
||||
t.echo = true
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
// ReadLine returns a line of input from the terminal.
|
||||
func (t *Terminal) ReadLine() (line string, err error) {
|
||||
t.lock.Lock()
|
||||
defer t.lock.Unlock()
|
||||
|
||||
return t.readLine()
|
||||
}
|
||||
|
||||
func (t *Terminal) readLine() (line string, err error) {
|
||||
// t.lock must be held at this point
|
||||
|
||||
if t.cursorX == 0 && t.cursorY == 0 {
|
||||
t.writeLine(t.prompt)
|
||||
t.c.Write(t.outBuf)
|
||||
t.outBuf = t.outBuf[:0]
|
||||
}
|
||||
|
||||
lineIsPasted := t.pasteActive
|
||||
|
||||
for {
|
||||
rest := t.remainder
|
||||
lineOk := false
|
||||
for !lineOk {
|
||||
var key rune
|
||||
key, rest = bytesToKey(rest, t.pasteActive)
|
||||
if key == utf8.RuneError {
|
||||
break
|
||||
}
|
||||
if !t.pasteActive {
|
||||
if key == keyCtrlD {
|
||||
if len(t.line) == 0 {
|
||||
return "", io.EOF
|
||||
}
|
||||
}
|
||||
if key == keyCtrlC {
|
||||
return "", io.EOF
|
||||
}
|
||||
if key == keyPasteStart {
|
||||
t.pasteActive = true
|
||||
if len(t.line) == 0 {
|
||||
lineIsPasted = true
|
||||
}
|
||||
continue
|
||||
}
|
||||
} else if key == keyPasteEnd {
|
||||
t.pasteActive = false
|
||||
continue
|
||||
}
|
||||
if !t.pasteActive {
|
||||
lineIsPasted = false
|
||||
}
|
||||
line, lineOk = t.handleKey(key)
|
||||
}
|
||||
if len(rest) > 0 {
|
||||
n := copy(t.inBuf[:], rest)
|
||||
t.remainder = t.inBuf[:n]
|
||||
} else {
|
||||
t.remainder = nil
|
||||
}
|
||||
t.c.Write(t.outBuf)
|
||||
t.outBuf = t.outBuf[:0]
|
||||
if lineOk {
|
||||
if t.echo {
|
||||
t.historyIndex = -1
|
||||
t.history.Add(line)
|
||||
}
|
||||
if lineIsPasted {
|
||||
err = ErrPasteIndicator
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// t.remainder is a slice at the beginning of t.inBuf
|
||||
// containing a partial key sequence
|
||||
readBuf := t.inBuf[len(t.remainder):]
|
||||
var n int
|
||||
|
||||
t.lock.Unlock()
|
||||
n, err = t.c.Read(readBuf)
|
||||
t.lock.Lock()
|
||||
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
t.remainder = t.inBuf[:n+len(t.remainder)]
|
||||
}
|
||||
}
|
||||
|
||||
// SetPrompt sets the prompt to be used when reading subsequent lines.
|
||||
func (t *Terminal) SetPrompt(prompt string) {
|
||||
t.lock.Lock()
|
||||
defer t.lock.Unlock()
|
||||
|
||||
t.prompt = []rune(prompt)
|
||||
}
|
||||
|
||||
func (t *Terminal) clearAndRepaintLinePlusNPrevious(numPrevLines int) {
|
||||
// Move cursor to column zero at the start of the line.
|
||||
t.move(t.cursorY, 0, t.cursorX, 0)
|
||||
t.cursorX, t.cursorY = 0, 0
|
||||
t.clearLineToRight()
|
||||
for t.cursorY < numPrevLines {
|
||||
// Move down a line
|
||||
t.move(0, 1, 0, 0)
|
||||
t.cursorY++
|
||||
t.clearLineToRight()
|
||||
}
|
||||
// Move back to beginning.
|
||||
t.move(t.cursorY, 0, 0, 0)
|
||||
t.cursorX, t.cursorY = 0, 0
|
||||
|
||||
t.queue(t.prompt)
|
||||
t.advanceCursor(visualLength(t.prompt))
|
||||
t.writeLine(t.line)
|
||||
t.moveCursorToPos(t.pos)
|
||||
}
|
||||
|
||||
func (t *Terminal) SetSize(width, height int) error {
|
||||
t.lock.Lock()
|
||||
defer t.lock.Unlock()
|
||||
|
||||
if width == 0 {
|
||||
width = 1
|
||||
}
|
||||
|
||||
oldWidth := t.termWidth
|
||||
t.termWidth, t.termHeight = width, height
|
||||
|
||||
switch {
|
||||
case width == oldWidth:
|
||||
// If the width didn't change then nothing else needs to be
|
||||
// done.
|
||||
return nil
|
||||
case len(t.line) == 0 && t.cursorX == 0 && t.cursorY == 0:
|
||||
// If there is nothing on current line and no prompt printed,
|
||||
// just do nothing
|
||||
return nil
|
||||
case width < oldWidth:
|
||||
// Some terminals (e.g. xterm) will truncate lines that were
|
||||
// too long when shinking. Others, (e.g. gnome-terminal) will
|
||||
// attempt to wrap them. For the former, repainting t.maxLine
|
||||
// works great, but that behaviour goes badly wrong in the case
|
||||
// of the latter because they have doubled every full line.
|
||||
|
||||
// We assume that we are working on a terminal that wraps lines
|
||||
// and adjust the cursor position based on every previous line
|
||||
// wrapping and turning into two. This causes the prompt on
|
||||
// xterms to move upwards, which isn't great, but it avoids a
|
||||
// huge mess with gnome-terminal.
|
||||
if t.cursorX >= t.termWidth {
|
||||
t.cursorX = t.termWidth - 1
|
||||
}
|
||||
t.cursorY *= 2
|
||||
t.clearAndRepaintLinePlusNPrevious(t.maxLine * 2)
|
||||
case width > oldWidth:
|
||||
// If the terminal expands then our position calculations will
|
||||
// be wrong in the future because we think the cursor is
|
||||
// |t.pos| chars into the string, but there will be a gap at
|
||||
// the end of any wrapped line.
|
||||
//
|
||||
// But the position will actually be correct until we move, so
|
||||
// we can move back to the beginning and repaint everything.
|
||||
t.clearAndRepaintLinePlusNPrevious(t.maxLine)
|
||||
}
|
||||
|
||||
_, err := t.c.Write(t.outBuf)
|
||||
t.outBuf = t.outBuf[:0]
|
||||
return err
|
||||
}
|
||||
|
||||
type pasteIndicatorError struct{}
|
||||
|
||||
func (pasteIndicatorError) Error() string {
|
||||
return "terminal: ErrPasteIndicator not correctly handled"
|
||||
}
|
||||
|
||||
// ErrPasteIndicator may be returned from ReadLine as the error, in addition
|
||||
// to valid line data. It indicates that bracketed paste mode is enabled and
|
||||
// that the returned line consists only of pasted data. Programs may wish to
|
||||
// interpret pasted data more literally than typed data.
|
||||
var ErrPasteIndicator = pasteIndicatorError{}
|
||||
|
||||
// SetBracketedPasteMode requests that the terminal bracket paste operations
|
||||
// with markers. Not all terminals support this but, if it is supported, then
|
||||
// enabling this mode will stop any autocomplete callback from running due to
|
||||
// pastes. Additionally, any lines that are completely pasted will be returned
|
||||
// from ReadLine with the error set to ErrPasteIndicator.
|
||||
func (t *Terminal) SetBracketedPasteMode(on bool) {
|
||||
if on {
|
||||
io.WriteString(t.c, "\x1b[?2004h")
|
||||
} else {
|
||||
io.WriteString(t.c, "\x1b[?2004l")
|
||||
}
|
||||
}
|
||||
|
||||
// stRingBuffer is a ring buffer of strings.
|
||||
type stRingBuffer struct {
|
||||
// entries contains max elements.
|
||||
entries []string
|
||||
max int
|
||||
// head contains the index of the element most recently added to the ring.
|
||||
head int
|
||||
// size contains the number of elements in the ring.
|
||||
size int
|
||||
}
|
||||
|
||||
func (s *stRingBuffer) Add(a string) {
|
||||
if s.entries == nil {
|
||||
const defaultNumEntries = 100
|
||||
s.entries = make([]string, defaultNumEntries)
|
||||
s.max = defaultNumEntries
|
||||
}
|
||||
|
||||
s.head = (s.head + 1) % s.max
|
||||
s.entries[s.head] = a
|
||||
if s.size < s.max {
|
||||
s.size++
|
||||
}
|
||||
}
|
||||
|
||||
// NthPreviousEntry returns the value passed to the nth previous call to Add.
|
||||
// If n is zero then the immediately prior value is returned, if one, then the
|
||||
// next most recent, and so on. If such an element doesn't exist then ok is
|
||||
// false.
|
||||
func (s *stRingBuffer) NthPreviousEntry(n int) (value string, ok bool) {
|
||||
if n >= s.size {
|
||||
return "", false
|
||||
}
|
||||
index := s.head - n
|
||||
if index < 0 {
|
||||
index += s.max
|
||||
}
|
||||
return s.entries[index], true
|
||||
}
|
||||
|
||||
// readPasswordLine reads from reader until it finds \n or io.EOF.
|
||||
// The slice returned does not include the \n.
|
||||
// readPasswordLine also ignores any \r it finds.
|
||||
// Windows uses \r as end of line. So, on Windows, readPasswordLine
|
||||
// reads until it finds \r and ignores any \n it finds during processing.
|
||||
func readPasswordLine(reader io.Reader) ([]byte, error) {
|
||||
var buf [1]byte
|
||||
var ret []byte
|
||||
|
||||
for {
|
||||
n, err := reader.Read(buf[:])
|
||||
if n > 0 {
|
||||
switch buf[0] {
|
||||
case '\b':
|
||||
if len(ret) > 0 {
|
||||
ret = ret[:len(ret)-1]
|
||||
}
|
||||
case '\n':
|
||||
if runtime.GOOS != "windows" {
|
||||
return ret, nil
|
||||
}
|
||||
// otherwise ignore \n
|
||||
case '\r':
|
||||
if runtime.GOOS == "windows" {
|
||||
return ret, nil
|
||||
}
|
||||
// otherwise ignore \r
|
||||
default:
|
||||
ret = append(ret, buf[0])
|
||||
}
|
||||
continue
|
||||
}
|
||||
if err != nil {
|
||||
if err == io.EOF && len(ret) > 0 {
|
||||
return ret, nil
|
||||
}
|
||||
return ret, err
|
||||
}
|
||||
}
|
||||
}
|
|
@ -666,11 +666,12 @@ go.opencensus.io/trace/tracestate
|
|||
# go.uber.org/goleak v1.1.10
|
||||
go.uber.org/goleak
|
||||
go.uber.org/goleak/internal/stack
|
||||
# golang.org/x/crypto v0.0.0-20200930160638-afb6bcd081ae
|
||||
# golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a
|
||||
golang.org/x/crypto/blake2b
|
||||
golang.org/x/crypto/blowfish
|
||||
golang.org/x/crypto/chacha20
|
||||
golang.org/x/crypto/curve25519
|
||||
golang.org/x/crypto/curve25519/internal/field
|
||||
golang.org/x/crypto/ed25519
|
||||
golang.org/x/crypto/ed25519/internal/edwards25519
|
||||
golang.org/x/crypto/internal/subtle
|
||||
|
@ -717,9 +718,12 @@ golang.org/x/sync/singleflight
|
|||
# golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44
|
||||
golang.org/x/sys/cpu
|
||||
golang.org/x/sys/internal/unsafeheader
|
||||
golang.org/x/sys/plan9
|
||||
golang.org/x/sys/unix
|
||||
golang.org/x/sys/windows
|
||||
golang.org/x/sys/windows/svc
|
||||
# golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1
|
||||
golang.org/x/term
|
||||
# golang.org/x/text v0.3.6
|
||||
golang.org/x/text/encoding
|
||||
golang.org/x/text/encoding/charmap
|
||||
|
|
Loading…
Reference in New Issue