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Update golang x/crypto dependencies (#2923)
This commit is contained in:
parent
074f6c1b49
commit
3138417c63
8
vendor/golang.org/x/crypto/curve25519/const_amd64.h
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8
vendor/golang.org/x/crypto/curve25519/const_amd64.h
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@ -0,0 +1,8 @@
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// Copyright 2012 The Go Authors. All rights reserved.
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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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// This code was translated into a form compatible with 6a from the public
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// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
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#define REDMASK51 0x0007FFFFFFFFFFFF
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6
vendor/golang.org/x/crypto/curve25519/const_amd64.s
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6
vendor/golang.org/x/crypto/curve25519/const_amd64.s
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@ -3,12 +3,12 @@
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// license that can be found in the LICENSE file.
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// This code was translated into a form compatible with 6a from the public
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// domain sources in SUPERCOP: http://bench.cr.yp.to/supercop.html
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// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
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// +build amd64,!gccgo,!appengine
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DATA ·REDMASK51(SB)/8, $0x0007FFFFFFFFFFFF
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GLOBL ·REDMASK51(SB), 8, $8
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// These constants cannot be encoded in non-MOVQ immediates.
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// We access them directly from memory instead.
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DATA ·_121666_213(SB)/8, $996687872
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GLOBL ·_121666_213(SB), 8, $8
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131
vendor/golang.org/x/crypto/curve25519/cswap_amd64.s
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131
vendor/golang.org/x/crypto/curve25519/cswap_amd64.s
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@ -2,87 +2,64 @@
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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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// This code was translated into a form compatible with 6a from the public
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// domain sources in SUPERCOP: http://bench.cr.yp.to/supercop.html
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// +build amd64,!gccgo,!appengine
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// func cswap(inout *[5]uint64, v uint64)
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// func cswap(inout *[4][5]uint64, v uint64)
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TEXT ·cswap(SB),7,$0
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MOVQ inout+0(FP),DI
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MOVQ v+8(FP),SI
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CMPQ SI,$1
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MOVQ 0(DI),SI
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MOVQ 80(DI),DX
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MOVQ 8(DI),CX
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MOVQ 88(DI),R8
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MOVQ SI,R9
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CMOVQEQ DX,SI
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CMOVQEQ R9,DX
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MOVQ CX,R9
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CMOVQEQ R8,CX
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CMOVQEQ R9,R8
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MOVQ SI,0(DI)
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MOVQ DX,80(DI)
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MOVQ CX,8(DI)
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MOVQ R8,88(DI)
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MOVQ 16(DI),SI
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MOVQ 96(DI),DX
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MOVQ 24(DI),CX
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MOVQ 104(DI),R8
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MOVQ SI,R9
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CMOVQEQ DX,SI
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CMOVQEQ R9,DX
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MOVQ CX,R9
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CMOVQEQ R8,CX
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CMOVQEQ R9,R8
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MOVQ SI,16(DI)
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MOVQ DX,96(DI)
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MOVQ CX,24(DI)
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MOVQ R8,104(DI)
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MOVQ 32(DI),SI
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MOVQ 112(DI),DX
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MOVQ 40(DI),CX
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MOVQ 120(DI),R8
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MOVQ SI,R9
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CMOVQEQ DX,SI
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CMOVQEQ R9,DX
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MOVQ CX,R9
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CMOVQEQ R8,CX
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CMOVQEQ R9,R8
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MOVQ SI,32(DI)
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MOVQ DX,112(DI)
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MOVQ CX,40(DI)
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MOVQ R8,120(DI)
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MOVQ 48(DI),SI
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MOVQ 128(DI),DX
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MOVQ 56(DI),CX
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MOVQ 136(DI),R8
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MOVQ SI,R9
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CMOVQEQ DX,SI
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CMOVQEQ R9,DX
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MOVQ CX,R9
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CMOVQEQ R8,CX
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CMOVQEQ R9,R8
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MOVQ SI,48(DI)
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MOVQ DX,128(DI)
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MOVQ CX,56(DI)
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MOVQ R8,136(DI)
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MOVQ 64(DI),SI
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MOVQ 144(DI),DX
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MOVQ 72(DI),CX
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MOVQ 152(DI),R8
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MOVQ SI,R9
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CMOVQEQ DX,SI
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CMOVQEQ R9,DX
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MOVQ CX,R9
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CMOVQEQ R8,CX
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CMOVQEQ R9,R8
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MOVQ SI,64(DI)
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MOVQ DX,144(DI)
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MOVQ CX,72(DI)
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MOVQ R8,152(DI)
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MOVQ DI,AX
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MOVQ SI,DX
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SUBQ $1, SI
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NOTQ SI
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MOVQ SI, X15
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PSHUFD $0x44, X15, X15
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MOVOU 0(DI), X0
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MOVOU 16(DI), X2
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MOVOU 32(DI), X4
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MOVOU 48(DI), X6
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MOVOU 64(DI), X8
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MOVOU 80(DI), X1
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MOVOU 96(DI), X3
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MOVOU 112(DI), X5
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MOVOU 128(DI), X7
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MOVOU 144(DI), X9
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MOVO X1, X10
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MOVO X3, X11
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MOVO X5, X12
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MOVO X7, X13
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MOVO X9, X14
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PXOR X0, X10
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PXOR X2, X11
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PXOR X4, X12
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PXOR X6, X13
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PXOR X8, X14
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PAND X15, X10
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PAND X15, X11
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PAND X15, X12
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PAND X15, X13
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PAND X15, X14
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PXOR X10, X0
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PXOR X10, X1
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PXOR X11, X2
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PXOR X11, X3
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PXOR X12, X4
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PXOR X12, X5
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PXOR X13, X6
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PXOR X13, X7
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PXOR X14, X8
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PXOR X14, X9
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MOVOU X0, 0(DI)
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MOVOU X2, 16(DI)
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MOVOU X4, 32(DI)
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MOVOU X6, 48(DI)
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MOVOU X8, 64(DI)
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MOVOU X1, 80(DI)
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MOVOU X3, 96(DI)
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MOVOU X5, 112(DI)
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MOVOU X7, 128(DI)
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MOVOU X9, 144(DI)
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RET
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841
vendor/golang.org/x/crypto/curve25519/curve25519.go
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841
vendor/golang.org/x/crypto/curve25519/curve25519.go
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@ -1,841 +0,0 @@
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// Copyright 2013 The Go Authors. All rights reserved.
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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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// We have a implementation in amd64 assembly so this code is only run on
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// non-amd64 platforms. The amd64 assembly does not support gccgo.
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// +build !amd64 gccgo appengine
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package curve25519
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// This code is a port of the public domain, "ref10" implementation of
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// curve25519 from SUPERCOP 20130419 by D. J. Bernstein.
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// fieldElement represents an element of the field GF(2^255 - 19). An element
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// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
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// t[3]+2^102 t[4]+...+2^230 t[9]. Bounds on each t[i] vary depending on
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// context.
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type fieldElement [10]int32
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func feZero(fe *fieldElement) {
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for i := range fe {
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fe[i] = 0
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}
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}
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func feOne(fe *fieldElement) {
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feZero(fe)
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fe[0] = 1
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}
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func feAdd(dst, a, b *fieldElement) {
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for i := range dst {
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dst[i] = a[i] + b[i]
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}
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}
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func feSub(dst, a, b *fieldElement) {
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for i := range dst {
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dst[i] = a[i] - b[i]
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}
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}
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func feCopy(dst, src *fieldElement) {
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for i := range dst {
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dst[i] = src[i]
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}
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}
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// feCSwap replaces (f,g) with (g,f) if b == 1; replaces (f,g) with (f,g) if b == 0.
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//
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// Preconditions: b in {0,1}.
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func feCSwap(f, g *fieldElement, b int32) {
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var x fieldElement
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b = -b
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for i := range x {
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x[i] = b & (f[i] ^ g[i])
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}
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for i := range f {
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f[i] ^= x[i]
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}
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for i := range g {
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g[i] ^= x[i]
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}
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}
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// load3 reads a 24-bit, little-endian value from in.
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func load3(in []byte) int64 {
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var r int64
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r = int64(in[0])
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r |= int64(in[1]) << 8
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r |= int64(in[2]) << 16
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return r
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}
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// load4 reads a 32-bit, little-endian value from in.
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func load4(in []byte) int64 {
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var r int64
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r = int64(in[0])
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r |= int64(in[1]) << 8
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r |= int64(in[2]) << 16
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r |= int64(in[3]) << 24
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return r
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}
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func feFromBytes(dst *fieldElement, src *[32]byte) {
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h0 := load4(src[:])
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h1 := load3(src[4:]) << 6
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h2 := load3(src[7:]) << 5
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h3 := load3(src[10:]) << 3
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h4 := load3(src[13:]) << 2
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h5 := load4(src[16:])
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h6 := load3(src[20:]) << 7
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h7 := load3(src[23:]) << 5
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h8 := load3(src[26:]) << 4
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h9 := load3(src[29:]) << 2
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var carry [10]int64
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carry[9] = (h9 + 1<<24) >> 25
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h0 += carry[9] * 19
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h9 -= carry[9] << 25
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carry[1] = (h1 + 1<<24) >> 25
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h2 += carry[1]
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h1 -= carry[1] << 25
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carry[3] = (h3 + 1<<24) >> 25
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h4 += carry[3]
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h3 -= carry[3] << 25
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carry[5] = (h5 + 1<<24) >> 25
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h6 += carry[5]
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h5 -= carry[5] << 25
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carry[7] = (h7 + 1<<24) >> 25
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h8 += carry[7]
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h7 -= carry[7] << 25
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carry[0] = (h0 + 1<<25) >> 26
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h1 += carry[0]
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h0 -= carry[0] << 26
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carry[2] = (h2 + 1<<25) >> 26
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h3 += carry[2]
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h2 -= carry[2] << 26
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carry[4] = (h4 + 1<<25) >> 26
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h5 += carry[4]
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h4 -= carry[4] << 26
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carry[6] = (h6 + 1<<25) >> 26
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h7 += carry[6]
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h6 -= carry[6] << 26
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carry[8] = (h8 + 1<<25) >> 26
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h9 += carry[8]
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h8 -= carry[8] << 26
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dst[0] = int32(h0)
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dst[1] = int32(h1)
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dst[2] = int32(h2)
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dst[3] = int32(h3)
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dst[4] = int32(h4)
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dst[5] = int32(h5)
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dst[6] = int32(h6)
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dst[7] = int32(h7)
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dst[8] = int32(h8)
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dst[9] = int32(h9)
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}
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// feToBytes marshals h to s.
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// Preconditions:
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// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
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//
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// Write p=2^255-19; q=floor(h/p).
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// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
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//
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// Proof:
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// Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
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// Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4.
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//
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// Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
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// Then 0<y<1.
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//
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// Write r=h-pq.
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// Have 0<=r<=p-1=2^255-20.
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// Thus 0<=r+19(2^-255)r<r+19(2^-255)2^255<=2^255-1.
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//
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// Write x=r+19(2^-255)r+y.
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// Then 0<x<2^255 so floor(2^(-255)x) = 0 so floor(q+2^(-255)x) = q.
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//
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// Have q+2^(-255)x = 2^(-255)(h + 19 2^(-25) h9 + 2^(-1))
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// so floor(2^(-255)(h + 19 2^(-25) h9 + 2^(-1))) = q.
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func feToBytes(s *[32]byte, h *fieldElement) {
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var carry [10]int32
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q := (19*h[9] + (1 << 24)) >> 25
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q = (h[0] + q) >> 26
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q = (h[1] + q) >> 25
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q = (h[2] + q) >> 26
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q = (h[3] + q) >> 25
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q = (h[4] + q) >> 26
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q = (h[5] + q) >> 25
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q = (h[6] + q) >> 26
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q = (h[7] + q) >> 25
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q = (h[8] + q) >> 26
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q = (h[9] + q) >> 25
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// Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20.
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h[0] += 19 * q
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// Goal: Output h-2^255 q, which is between 0 and 2^255-20.
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carry[0] = h[0] >> 26
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h[1] += carry[0]
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h[0] -= carry[0] << 26
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carry[1] = h[1] >> 25
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h[2] += carry[1]
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h[1] -= carry[1] << 25
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carry[2] = h[2] >> 26
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h[3] += carry[2]
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h[2] -= carry[2] << 26
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carry[3] = h[3] >> 25
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h[4] += carry[3]
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h[3] -= carry[3] << 25
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carry[4] = h[4] >> 26
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h[5] += carry[4]
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h[4] -= carry[4] << 26
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carry[5] = h[5] >> 25
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h[6] += carry[5]
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h[5] -= carry[5] << 25
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carry[6] = h[6] >> 26
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h[7] += carry[6]
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h[6] -= carry[6] << 26
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carry[7] = h[7] >> 25
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h[8] += carry[7]
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h[7] -= carry[7] << 25
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carry[8] = h[8] >> 26
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h[9] += carry[8]
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h[8] -= carry[8] << 26
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carry[9] = h[9] >> 25
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h[9] -= carry[9] << 25
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// h10 = carry9
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// Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20.
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// Have h[0]+...+2^230 h[9] between 0 and 2^255-1;
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// evidently 2^255 h10-2^255 q = 0.
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// Goal: Output h[0]+...+2^230 h[9].
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s[0] = byte(h[0] >> 0)
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s[1] = byte(h[0] >> 8)
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s[2] = byte(h[0] >> 16)
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s[3] = byte((h[0] >> 24) | (h[1] << 2))
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s[4] = byte(h[1] >> 6)
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s[5] = byte(h[1] >> 14)
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s[6] = byte((h[1] >> 22) | (h[2] << 3))
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s[7] = byte(h[2] >> 5)
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s[8] = byte(h[2] >> 13)
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s[9] = byte((h[2] >> 21) | (h[3] << 5))
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s[10] = byte(h[3] >> 3)
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s[11] = byte(h[3] >> 11)
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s[12] = byte((h[3] >> 19) | (h[4] << 6))
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s[13] = byte(h[4] >> 2)
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s[14] = byte(h[4] >> 10)
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s[15] = byte(h[4] >> 18)
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s[16] = byte(h[5] >> 0)
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s[17] = byte(h[5] >> 8)
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s[18] = byte(h[5] >> 16)
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s[19] = byte((h[5] >> 24) | (h[6] << 1))
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s[20] = byte(h[6] >> 7)
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s[21] = byte(h[6] >> 15)
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s[22] = byte((h[6] >> 23) | (h[7] << 3))
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s[23] = byte(h[7] >> 5)
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s[24] = byte(h[7] >> 13)
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s[25] = byte((h[7] >> 21) | (h[8] << 4))
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s[26] = byte(h[8] >> 4)
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s[27] = byte(h[8] >> 12)
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s[28] = byte((h[8] >> 20) | (h[9] << 6))
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s[29] = byte(h[9] >> 2)
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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 scalarMult(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)
|
||||
}
|
2
vendor/golang.org/x/crypto/curve25519/doc.go
generated
vendored
2
vendor/golang.org/x/crypto/curve25519/doc.go
generated
vendored
|
@ -3,7 +3,7 @@
|
|||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package curve25519 provides an implementation of scalar multiplication on
|
||||
// the elliptic curve known as curve25519. See http://cr.yp.to/ecdh.html
|
||||
// the elliptic curve known as curve25519. See https://cr.yp.to/ecdh.html
|
||||
package curve25519 // import "golang.org/x/crypto/curve25519"
|
||||
|
||||
// basePoint is the x coordinate of the generator of the curve.
|
||||
|
|
6
vendor/golang.org/x/crypto/curve25519/freeze_amd64.s
generated
vendored
6
vendor/golang.org/x/crypto/curve25519/freeze_amd64.s
generated
vendored
|
@ -3,10 +3,12 @@
|
|||
// license that can be found in the LICENSE file.
|
||||
|
||||
// This code was translated into a form compatible with 6a from the public
|
||||
// domain sources in SUPERCOP: http://bench.cr.yp.to/supercop.html
|
||||
// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
|
||||
|
||||
// +build amd64,!gccgo,!appengine
|
||||
|
||||
#include "const_amd64.h"
|
||||
|
||||
// func freeze(inout *[5]uint64)
|
||||
TEXT ·freeze(SB),7,$0-8
|
||||
MOVQ inout+0(FP), DI
|
||||
|
@ -16,7 +18,7 @@ TEXT ·freeze(SB),7,$0-8
|
|||
MOVQ 16(DI),CX
|
||||
MOVQ 24(DI),R8
|
||||
MOVQ 32(DI),R9
|
||||
MOVQ ·REDMASK51(SB),AX
|
||||
MOVQ $REDMASK51,AX
|
||||
MOVQ AX,R10
|
||||
SUBQ $18,R10
|
||||
MOVQ $3,R11
|
||||
|
|
22
vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s
generated
vendored
22
vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s
generated
vendored
|
@ -3,10 +3,12 @@
|
|||
// license that can be found in the LICENSE file.
|
||||
|
||||
// This code was translated into a form compatible with 6a from the public
|
||||
// domain sources in SUPERCOP: http://bench.cr.yp.to/supercop.html
|
||||
// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
|
||||
|
||||
// +build amd64,!gccgo,!appengine
|
||||
|
||||
#include "const_amd64.h"
|
||||
|
||||
// func ladderstep(inout *[5][5]uint64)
|
||||
TEXT ·ladderstep(SB),0,$296-8
|
||||
MOVQ inout+0(FP),DI
|
||||
|
@ -118,7 +120,7 @@ TEXT ·ladderstep(SB),0,$296-8
|
|||
MULQ 72(SP)
|
||||
ADDQ AX,R12
|
||||
ADCQ DX,R13
|
||||
MOVQ ·REDMASK51(SB),DX
|
||||
MOVQ $REDMASK51,DX
|
||||
SHLQ $13,CX:SI
|
||||
ANDQ DX,SI
|
||||
SHLQ $13,R9:R8
|
||||
|
@ -233,7 +235,7 @@ TEXT ·ladderstep(SB),0,$296-8
|
|||
MULQ 32(SP)
|
||||
ADDQ AX,R12
|
||||
ADCQ DX,R13
|
||||
MOVQ ·REDMASK51(SB),DX
|
||||
MOVQ $REDMASK51,DX
|
||||
SHLQ $13,CX:SI
|
||||
ANDQ DX,SI
|
||||
SHLQ $13,R9:R8
|
||||
|
@ -438,7 +440,7 @@ TEXT ·ladderstep(SB),0,$296-8
|
|||
MULQ 72(SP)
|
||||
ADDQ AX,R12
|
||||
ADCQ DX,R13
|
||||
MOVQ ·REDMASK51(SB),DX
|
||||
MOVQ $REDMASK51,DX
|
||||
SHLQ $13,CX:SI
|
||||
ANDQ DX,SI
|
||||
SHLQ $13,R9:R8
|
||||
|
@ -588,7 +590,7 @@ TEXT ·ladderstep(SB),0,$296-8
|
|||
MULQ 32(SP)
|
||||
ADDQ AX,R12
|
||||
ADCQ DX,R13
|
||||
MOVQ ·REDMASK51(SB),DX
|
||||
MOVQ $REDMASK51,DX
|
||||
SHLQ $13,CX:SI
|
||||
ANDQ DX,SI
|
||||
SHLQ $13,R9:R8
|
||||
|
@ -728,7 +730,7 @@ TEXT ·ladderstep(SB),0,$296-8
|
|||
MULQ 152(DI)
|
||||
ADDQ AX,R12
|
||||
ADCQ DX,R13
|
||||
MOVQ ·REDMASK51(SB),DX
|
||||
MOVQ $REDMASK51,DX
|
||||
SHLQ $13,CX:SI
|
||||
ANDQ DX,SI
|
||||
SHLQ $13,R9:R8
|
||||
|
@ -843,7 +845,7 @@ TEXT ·ladderstep(SB),0,$296-8
|
|||
MULQ 192(DI)
|
||||
ADDQ AX,R12
|
||||
ADCQ DX,R13
|
||||
MOVQ ·REDMASK51(SB),DX
|
||||
MOVQ $REDMASK51,DX
|
||||
SHLQ $13,CX:SI
|
||||
ANDQ DX,SI
|
||||
SHLQ $13,R9:R8
|
||||
|
@ -993,7 +995,7 @@ TEXT ·ladderstep(SB),0,$296-8
|
|||
MULQ 32(DI)
|
||||
ADDQ AX,R12
|
||||
ADCQ DX,R13
|
||||
MOVQ ·REDMASK51(SB),DX
|
||||
MOVQ $REDMASK51,DX
|
||||
SHLQ $13,CX:SI
|
||||
ANDQ DX,SI
|
||||
SHLQ $13,R9:R8
|
||||
|
@ -1143,7 +1145,7 @@ TEXT ·ladderstep(SB),0,$296-8
|
|||
MULQ 112(SP)
|
||||
ADDQ AX,R12
|
||||
ADCQ DX,R13
|
||||
MOVQ ·REDMASK51(SB),DX
|
||||
MOVQ $REDMASK51,DX
|
||||
SHLQ $13,CX:SI
|
||||
ANDQ DX,SI
|
||||
SHLQ $13,R9:R8
|
||||
|
@ -1329,7 +1331,7 @@ TEXT ·ladderstep(SB),0,$296-8
|
|||
MULQ 192(SP)
|
||||
ADDQ AX,R12
|
||||
ADCQ DX,R13
|
||||
MOVQ ·REDMASK51(SB),DX
|
||||
MOVQ $REDMASK51,DX
|
||||
SHLQ $13,CX:SI
|
||||
ANDQ DX,SI
|
||||
SHLQ $13,R9:R8
|
||||
|
|
6
vendor/golang.org/x/crypto/curve25519/mul_amd64.s
generated
vendored
6
vendor/golang.org/x/crypto/curve25519/mul_amd64.s
generated
vendored
|
@ -3,10 +3,12 @@
|
|||
// license that can be found in the LICENSE file.
|
||||
|
||||
// This code was translated into a form compatible with 6a from the public
|
||||
// domain sources in SUPERCOP: http://bench.cr.yp.to/supercop.html
|
||||
// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
|
||||
|
||||
// +build amd64,!gccgo,!appengine
|
||||
|
||||
#include "const_amd64.h"
|
||||
|
||||
// func mul(dest, a, b *[5]uint64)
|
||||
TEXT ·mul(SB),0,$16-24
|
||||
MOVQ dest+0(FP), DI
|
||||
|
@ -121,7 +123,7 @@ TEXT ·mul(SB),0,$16-24
|
|||
MULQ 32(CX)
|
||||
ADDQ AX,R14
|
||||
ADCQ DX,R15
|
||||
MOVQ ·REDMASK51(SB),SI
|
||||
MOVQ $REDMASK51,SI
|
||||
SHLQ $13,R9:R8
|
||||
ANDQ SI,R8
|
||||
SHLQ $13,R11:R10
|
||||
|
|
6
vendor/golang.org/x/crypto/curve25519/square_amd64.s
generated
vendored
6
vendor/golang.org/x/crypto/curve25519/square_amd64.s
generated
vendored
|
@ -3,10 +3,12 @@
|
|||
// license that can be found in the LICENSE file.
|
||||
|
||||
// This code was translated into a form compatible with 6a from the public
|
||||
// domain sources in SUPERCOP: http://bench.cr.yp.to/supercop.html
|
||||
// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
|
||||
|
||||
// +build amd64,!gccgo,!appengine
|
||||
|
||||
#include "const_amd64.h"
|
||||
|
||||
// func square(out, in *[5]uint64)
|
||||
TEXT ·square(SB),7,$0-16
|
||||
MOVQ out+0(FP), DI
|
||||
|
@ -84,7 +86,7 @@ TEXT ·square(SB),7,$0-16
|
|||
MULQ 32(SI)
|
||||
ADDQ AX,R13
|
||||
ADCQ DX,R14
|
||||
MOVQ ·REDMASK51(SB),SI
|
||||
MOVQ $REDMASK51,SI
|
||||
SHLQ $13,R8:CX
|
||||
ANDQ SI,CX
|
||||
SHLQ $13,R10:R9
|
||||
|
|
8
vendor/golang.org/x/crypto/ed25519/ed25519.go
generated
vendored
8
vendor/golang.org/x/crypto/ed25519/ed25519.go
generated
vendored
|
@ -3,20 +3,20 @@
|
|||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package ed25519 implements the Ed25519 signature algorithm. See
|
||||
// http://ed25519.cr.yp.to/.
|
||||
// https://ed25519.cr.yp.to/.
|
||||
//
|
||||
// These functions are also compatible with the “Ed25519” function defined in
|
||||
// https://tools.ietf.org/html/draft-irtf-cfrg-eddsa-05.
|
||||
// RFC 8032.
|
||||
package ed25519
|
||||
|
||||
// This code is a port of the public domain, “ref10” implementation of ed25519
|
||||
// from SUPERCOP.
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto"
|
||||
cryptorand "crypto/rand"
|
||||
"crypto/sha512"
|
||||
"crypto/subtle"
|
||||
"errors"
|
||||
"io"
|
||||
"strconv"
|
||||
|
@ -177,5 +177,5 @@ func Verify(publicKey PublicKey, message, sig []byte) bool {
|
|||
|
||||
var checkR [32]byte
|
||||
R.ToBytes(&checkR)
|
||||
return subtle.ConstantTimeCompare(sig[:32], checkR[:]) == 1
|
||||
return bytes.Equal(sig[:32], checkR[:])
|
||||
}
|
||||
|
|
5
vendor/golang.org/x/crypto/ssh/buffer.go
generated
vendored
5
vendor/golang.org/x/crypto/ssh/buffer.go
generated
vendored
|
@ -51,13 +51,12 @@ func (b *buffer) write(buf []byte) {
|
|||
}
|
||||
|
||||
// eof closes the buffer. Reads from the buffer once all
|
||||
// the data has been consumed will receive os.EOF.
|
||||
func (b *buffer) eof() error {
|
||||
// the data has been consumed will receive io.EOF.
|
||||
func (b *buffer) eof() {
|
||||
b.Cond.L.Lock()
|
||||
b.closed = true
|
||||
b.Cond.Signal()
|
||||
b.Cond.L.Unlock()
|
||||
return nil
|
||||
}
|
||||
|
||||
// Read reads data from the internal buffer in buf. Reads will block
|
||||
|
|
36
vendor/golang.org/x/crypto/ssh/certs.go
generated
vendored
36
vendor/golang.org/x/crypto/ssh/certs.go
generated
vendored
|
@ -251,10 +251,18 @@ type CertChecker struct {
|
|||
// for user certificates.
|
||||
SupportedCriticalOptions []string
|
||||
|
||||
// IsAuthority should return true if the key is recognized as
|
||||
// an authority. This allows for certificates to be signed by other
|
||||
// certificates.
|
||||
IsAuthority func(auth PublicKey) bool
|
||||
// IsUserAuthority should return true if the key is recognized as an
|
||||
// authority for the given user certificate. This allows for
|
||||
// certificates to be signed by other certificates. This must be set
|
||||
// if this CertChecker will be checking user certificates.
|
||||
IsUserAuthority func(auth PublicKey) bool
|
||||
|
||||
// IsHostAuthority should report whether the key is recognized as
|
||||
// an authority for this host. This allows for certificates to be
|
||||
// signed by other keys, and for those other keys to only be valid
|
||||
// signers for particular hostnames. This must be set if this
|
||||
// CertChecker will be checking host certificates.
|
||||
IsHostAuthority func(auth PublicKey, address string) bool
|
||||
|
||||
// Clock is used for verifying time stamps. If nil, time.Now
|
||||
// is used.
|
||||
|
@ -268,7 +276,7 @@ type CertChecker struct {
|
|||
// HostKeyFallback is called when CertChecker.CheckHostKey encounters a
|
||||
// public key that is not a certificate. It must implement host key
|
||||
// validation or else, if nil, all such keys are rejected.
|
||||
HostKeyFallback func(addr string, remote net.Addr, key PublicKey) error
|
||||
HostKeyFallback HostKeyCallback
|
||||
|
||||
// IsRevoked is called for each certificate so that revocation checking
|
||||
// can be implemented. It should return true if the given certificate
|
||||
|
@ -290,8 +298,17 @@ func (c *CertChecker) CheckHostKey(addr string, remote net.Addr, key PublicKey)
|
|||
if cert.CertType != HostCert {
|
||||
return fmt.Errorf("ssh: certificate presented as a host key has type %d", cert.CertType)
|
||||
}
|
||||
if !c.IsHostAuthority(cert.SignatureKey, addr) {
|
||||
return fmt.Errorf("ssh: no authorities for hostname: %v", addr)
|
||||
}
|
||||
|
||||
return c.CheckCert(addr, cert)
|
||||
hostname, _, err := net.SplitHostPort(addr)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Pass hostname only as principal for host certificates (consistent with OpenSSH)
|
||||
return c.CheckCert(hostname, cert)
|
||||
}
|
||||
|
||||
// Authenticate checks a user certificate. Authenticate can be used as
|
||||
|
@ -308,6 +325,9 @@ func (c *CertChecker) Authenticate(conn ConnMetadata, pubKey PublicKey) (*Permis
|
|||
if cert.CertType != UserCert {
|
||||
return nil, fmt.Errorf("ssh: cert has type %d", cert.CertType)
|
||||
}
|
||||
if !c.IsUserAuthority(cert.SignatureKey) {
|
||||
return nil, fmt.Errorf("ssh: certificate signed by unrecognized authority")
|
||||
}
|
||||
|
||||
if err := c.CheckCert(conn.User(), cert); err != nil {
|
||||
return nil, err
|
||||
|
@ -356,10 +376,6 @@ func (c *CertChecker) CheckCert(principal string, cert *Certificate) error {
|
|||
}
|
||||
}
|
||||
|
||||
if !c.IsAuthority(cert.SignatureKey) {
|
||||
return fmt.Errorf("ssh: certificate signed by unrecognized authority")
|
||||
}
|
||||
|
||||
clock := c.Clock
|
||||
if clock == nil {
|
||||
clock = time.Now
|
||||
|
|
4
vendor/golang.org/x/crypto/ssh/channel.go
generated
vendored
4
vendor/golang.org/x/crypto/ssh/channel.go
generated
vendored
|
@ -461,8 +461,8 @@ func (m *mux) newChannel(chanType string, direction channelDirection, extraData
|
|||
pending: newBuffer(),
|
||||
extPending: newBuffer(),
|
||||
direction: direction,
|
||||
incomingRequests: make(chan *Request, 16),
|
||||
msg: make(chan interface{}, 16),
|
||||
incomingRequests: make(chan *Request, chanSize),
|
||||
msg: make(chan interface{}, chanSize),
|
||||
chanType: chanType,
|
||||
extraData: extraData,
|
||||
mux: m,
|
||||
|
|
56
vendor/golang.org/x/crypto/ssh/cipher.go
generated
vendored
56
vendor/golang.org/x/crypto/ssh/cipher.go
generated
vendored
|
@ -135,6 +135,7 @@ const prefixLen = 5
|
|||
type streamPacketCipher struct {
|
||||
mac hash.Hash
|
||||
cipher cipher.Stream
|
||||
etm bool
|
||||
|
||||
// The following members are to avoid per-packet allocations.
|
||||
prefix [prefixLen]byte
|
||||
|
@ -150,7 +151,14 @@ func (s *streamPacketCipher) readPacket(seqNum uint32, r io.Reader) ([]byte, err
|
|||
return nil, err
|
||||
}
|
||||
|
||||
var encryptedPaddingLength [1]byte
|
||||
if s.mac != nil && s.etm {
|
||||
copy(encryptedPaddingLength[:], s.prefix[4:5])
|
||||
s.cipher.XORKeyStream(s.prefix[4:5], s.prefix[4:5])
|
||||
} else {
|
||||
s.cipher.XORKeyStream(s.prefix[:], s.prefix[:])
|
||||
}
|
||||
|
||||
length := binary.BigEndian.Uint32(s.prefix[0:4])
|
||||
paddingLength := uint32(s.prefix[4])
|
||||
|
||||
|
@ -159,7 +167,12 @@ func (s *streamPacketCipher) readPacket(seqNum uint32, r io.Reader) ([]byte, err
|
|||
s.mac.Reset()
|
||||
binary.BigEndian.PutUint32(s.seqNumBytes[:], seqNum)
|
||||
s.mac.Write(s.seqNumBytes[:])
|
||||
if s.etm {
|
||||
s.mac.Write(s.prefix[:4])
|
||||
s.mac.Write(encryptedPaddingLength[:])
|
||||
} else {
|
||||
s.mac.Write(s.prefix[:])
|
||||
}
|
||||
macSize = uint32(s.mac.Size())
|
||||
}
|
||||
|
||||
|
@ -184,10 +197,17 @@ func (s *streamPacketCipher) readPacket(seqNum uint32, r io.Reader) ([]byte, err
|
|||
}
|
||||
mac := s.packetData[length-1:]
|
||||
data := s.packetData[:length-1]
|
||||
|
||||
if s.mac != nil && s.etm {
|
||||
s.mac.Write(data)
|
||||
}
|
||||
|
||||
s.cipher.XORKeyStream(data, data)
|
||||
|
||||
if s.mac != nil {
|
||||
if !s.etm {
|
||||
s.mac.Write(data)
|
||||
}
|
||||
s.macResult = s.mac.Sum(s.macResult[:0])
|
||||
if subtle.ConstantTimeCompare(s.macResult, mac) != 1 {
|
||||
return nil, errors.New("ssh: MAC failure")
|
||||
|
@ -203,7 +223,13 @@ func (s *streamPacketCipher) writePacket(seqNum uint32, w io.Writer, rand io.Rea
|
|||
return errors.New("ssh: packet too large")
|
||||
}
|
||||
|
||||
paddingLength := packetSizeMultiple - (prefixLen+len(packet))%packetSizeMultiple
|
||||
aadlen := 0
|
||||
if s.mac != nil && s.etm {
|
||||
// packet length is not encrypted for EtM modes
|
||||
aadlen = 4
|
||||
}
|
||||
|
||||
paddingLength := packetSizeMultiple - (prefixLen+len(packet)-aadlen)%packetSizeMultiple
|
||||
if paddingLength < 4 {
|
||||
paddingLength += packetSizeMultiple
|
||||
}
|
||||
|
@ -220,15 +246,37 @@ func (s *streamPacketCipher) writePacket(seqNum uint32, w io.Writer, rand io.Rea
|
|||
s.mac.Reset()
|
||||
binary.BigEndian.PutUint32(s.seqNumBytes[:], seqNum)
|
||||
s.mac.Write(s.seqNumBytes[:])
|
||||
|
||||
if s.etm {
|
||||
// For EtM algorithms, the packet length must stay unencrypted,
|
||||
// but the following data (padding length) must be encrypted
|
||||
s.cipher.XORKeyStream(s.prefix[4:5], s.prefix[4:5])
|
||||
}
|
||||
|
||||
s.mac.Write(s.prefix[:])
|
||||
|
||||
if !s.etm {
|
||||
// For non-EtM algorithms, the algorithm is applied on unencrypted data
|
||||
s.mac.Write(packet)
|
||||
s.mac.Write(padding)
|
||||
}
|
||||
}
|
||||
|
||||
if !(s.mac != nil && s.etm) {
|
||||
// For EtM algorithms, the padding length has already been encrypted
|
||||
// and the packet length must remain unencrypted
|
||||
s.cipher.XORKeyStream(s.prefix[:], s.prefix[:])
|
||||
}
|
||||
|
||||
s.cipher.XORKeyStream(packet, packet)
|
||||
s.cipher.XORKeyStream(padding, padding)
|
||||
|
||||
if s.mac != nil && s.etm {
|
||||
// For EtM algorithms, packet and padding must be encrypted
|
||||
s.mac.Write(packet)
|
||||
s.mac.Write(padding)
|
||||
}
|
||||
|
||||
if _, err := w.Write(s.prefix[:]); err != nil {
|
||||
return err
|
||||
}
|
||||
|
@ -256,7 +304,7 @@ type gcmCipher struct {
|
|||
buf []byte
|
||||
}
|
||||
|
||||
func newGCMCipher(iv, key, macKey []byte) (packetCipher, error) {
|
||||
func newGCMCipher(iv, key []byte) (packetCipher, error) {
|
||||
c, err := aes.NewCipher(key)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
|
@ -344,7 +392,9 @@ func (c *gcmCipher) readPacket(seqNum uint32, r io.Reader) ([]byte, error) {
|
|||
c.incIV()
|
||||
|
||||
padding := plain[0]
|
||||
if padding < 4 || padding >= 20 {
|
||||
if padding < 4 {
|
||||
// padding is a byte, so it automatically satisfies
|
||||
// the maximum size, which is 255.
|
||||
return nil, fmt.Errorf("ssh: illegal padding %d", padding)
|
||||
}
|
||||
|
||||
|
|
83
vendor/golang.org/x/crypto/ssh/client.go
generated
vendored
83
vendor/golang.org/x/crypto/ssh/client.go
generated
vendored
|
@ -5,15 +5,17 @@
|
|||
package ssh
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"net"
|
||||
"os"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
// Client implements a traditional SSH client that supports shells,
|
||||
// subprocesses, port forwarding and tunneled dialing.
|
||||
// subprocesses, TCP port/streamlocal forwarding and tunneled dialing.
|
||||
type Client struct {
|
||||
Conn
|
||||
|
||||
|
@ -40,7 +42,7 @@ func (c *Client) HandleChannelOpen(channelType string) <-chan NewChannel {
|
|||
return nil
|
||||
}
|
||||
|
||||
ch = make(chan NewChannel, 16)
|
||||
ch = make(chan NewChannel, chanSize)
|
||||
c.channelHandlers[channelType] = ch
|
||||
return ch
|
||||
}
|
||||
|
@ -59,6 +61,7 @@ func NewClient(c Conn, chans <-chan NewChannel, reqs <-chan *Request) *Client {
|
|||
conn.forwards.closeAll()
|
||||
}()
|
||||
go conn.forwards.handleChannels(conn.HandleChannelOpen("forwarded-tcpip"))
|
||||
go conn.forwards.handleChannels(conn.HandleChannelOpen("forwarded-streamlocal@openssh.com"))
|
||||
return conn
|
||||
}
|
||||
|
||||
|
@ -68,6 +71,11 @@ func NewClient(c Conn, chans <-chan NewChannel, reqs <-chan *Request) *Client {
|
|||
func NewClientConn(c net.Conn, addr string, config *ClientConfig) (Conn, <-chan NewChannel, <-chan *Request, error) {
|
||||
fullConf := *config
|
||||
fullConf.SetDefaults()
|
||||
if fullConf.HostKeyCallback == nil {
|
||||
c.Close()
|
||||
return nil, nil, nil, errors.New("ssh: must specify HostKeyCallback")
|
||||
}
|
||||
|
||||
conn := &connection{
|
||||
sshConn: sshConn{conn: c},
|
||||
}
|
||||
|
@ -97,13 +105,11 @@ func (c *connection) clientHandshake(dialAddress string, config *ClientConfig) e
|
|||
c.transport = newClientTransport(
|
||||
newTransport(c.sshConn.conn, config.Rand, true /* is client */),
|
||||
c.clientVersion, c.serverVersion, config, dialAddress, c.sshConn.RemoteAddr())
|
||||
if err := c.transport.requestInitialKeyChange(); err != nil {
|
||||
if err := c.transport.waitSession(); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// We just did the key change, so the session ID is established.
|
||||
c.sessionID = c.transport.getSessionID()
|
||||
|
||||
return c.clientAuthenticate(config)
|
||||
}
|
||||
|
||||
|
@ -175,6 +181,17 @@ func Dial(network, addr string, config *ClientConfig) (*Client, error) {
|
|||
return NewClient(c, chans, reqs), nil
|
||||
}
|
||||
|
||||
// HostKeyCallback is the function type used for verifying server
|
||||
// keys. A HostKeyCallback must return nil if the host key is OK, or
|
||||
// an error to reject it. It receives the hostname as passed to Dial
|
||||
// or NewClientConn. The remote address is the RemoteAddr of the
|
||||
// net.Conn underlying the the SSH connection.
|
||||
type HostKeyCallback func(hostname string, remote net.Addr, key PublicKey) error
|
||||
|
||||
// BannerCallback is the function type used for treat the banner sent by
|
||||
// the server. A BannerCallback receives the message sent by the remote server.
|
||||
type BannerCallback func(message string) error
|
||||
|
||||
// A ClientConfig structure is used to configure a Client. It must not be
|
||||
// modified after having been passed to an SSH function.
|
||||
type ClientConfig struct {
|
||||
|
@ -190,10 +207,18 @@ type ClientConfig struct {
|
|||
// be used during authentication.
|
||||
Auth []AuthMethod
|
||||
|
||||
// HostKeyCallback, if not nil, is called during the cryptographic
|
||||
// handshake to validate the server's host key. A nil HostKeyCallback
|
||||
// implies that all host keys are accepted.
|
||||
HostKeyCallback func(hostname string, remote net.Addr, key PublicKey) error
|
||||
// HostKeyCallback is called during the cryptographic
|
||||
// handshake to validate the server's host key. The client
|
||||
// configuration must supply this callback for the connection
|
||||
// to succeed. The functions InsecureIgnoreHostKey or
|
||||
// FixedHostKey can be used for simplistic host key checks.
|
||||
HostKeyCallback HostKeyCallback
|
||||
|
||||
// BannerCallback is called during the SSH dance to display a custom
|
||||
// server's message. The client configuration can supply this callback to
|
||||
// handle it as wished. The function BannerDisplayStderr can be used for
|
||||
// simplistic display on Stderr.
|
||||
BannerCallback BannerCallback
|
||||
|
||||
// ClientVersion contains the version identification string that will
|
||||
// be used for the connection. If empty, a reasonable default is used.
|
||||
|
@ -211,3 +236,43 @@ type ClientConfig struct {
|
|||
// A Timeout of zero means no timeout.
|
||||
Timeout time.Duration
|
||||
}
|
||||
|
||||
// InsecureIgnoreHostKey returns a function that can be used for
|
||||
// ClientConfig.HostKeyCallback to accept any host key. It should
|
||||
// not be used for production code.
|
||||
func InsecureIgnoreHostKey() HostKeyCallback {
|
||||
return func(hostname string, remote net.Addr, key PublicKey) error {
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
type fixedHostKey struct {
|
||||
key PublicKey
|
||||
}
|
||||
|
||||
func (f *fixedHostKey) check(hostname string, remote net.Addr, key PublicKey) error {
|
||||
if f.key == nil {
|
||||
return fmt.Errorf("ssh: required host key was nil")
|
||||
}
|
||||
if !bytes.Equal(key.Marshal(), f.key.Marshal()) {
|
||||
return fmt.Errorf("ssh: host key mismatch")
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// FixedHostKey returns a function for use in
|
||||
// ClientConfig.HostKeyCallback to accept only a specific host key.
|
||||
func FixedHostKey(key PublicKey) HostKeyCallback {
|
||||
hk := &fixedHostKey{key}
|
||||
return hk.check
|
||||
}
|
||||
|
||||
// BannerDisplayStderr returns a function that can be used for
|
||||
// ClientConfig.BannerCallback to display banners on os.Stderr.
|
||||
func BannerDisplayStderr() BannerCallback {
|
||||
return func(banner string) error {
|
||||
_, err := os.Stderr.WriteString(banner)
|
||||
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
|
75
vendor/golang.org/x/crypto/ssh/client_auth.go
generated
vendored
75
vendor/golang.org/x/crypto/ssh/client_auth.go
generated
vendored
|
@ -30,8 +30,10 @@ func (c *connection) clientAuthenticate(config *ClientConfig) error {
|
|||
// then any untried methods suggested by the server.
|
||||
tried := make(map[string]bool)
|
||||
var lastMethods []string
|
||||
|
||||
sessionID := c.transport.getSessionID()
|
||||
for auth := AuthMethod(new(noneAuth)); auth != nil; {
|
||||
ok, methods, err := auth.auth(c.transport.getSessionID(), config.User, c.transport, config.Rand)
|
||||
ok, methods, err := auth.auth(sessionID, config.User, c.transport, config.Rand)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
@ -177,31 +179,26 @@ func (cb publicKeyCallback) method() string {
|
|||
}
|
||||
|
||||
func (cb publicKeyCallback) auth(session []byte, user string, c packetConn, rand io.Reader) (bool, []string, error) {
|
||||
// Authentication is performed in two stages. The first stage sends an
|
||||
// enquiry to test if each key is acceptable to the remote. The second
|
||||
// stage attempts to authenticate with the valid keys obtained in the
|
||||
// first stage.
|
||||
// Authentication is performed by sending an enquiry to test if a key is
|
||||
// acceptable to the remote. If the key is acceptable, the client will
|
||||
// attempt to authenticate with the valid key. If not the client will repeat
|
||||
// the process with the remaining keys.
|
||||
|
||||
signers, err := cb()
|
||||
if err != nil {
|
||||
return false, nil, err
|
||||
}
|
||||
var validKeys []Signer
|
||||
var methods []string
|
||||
for _, signer := range signers {
|
||||
if ok, err := validateKey(signer.PublicKey(), user, c); ok {
|
||||
validKeys = append(validKeys, signer)
|
||||
} else {
|
||||
ok, err := validateKey(signer.PublicKey(), user, c)
|
||||
if err != nil {
|
||||
return false, nil, err
|
||||
}
|
||||
}
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
|
||||
// methods that may continue if this auth is not successful.
|
||||
var methods []string
|
||||
for _, signer := range validKeys {
|
||||
pub := signer.PublicKey()
|
||||
|
||||
pubKey := pub.Marshal()
|
||||
sign, err := signer.Sign(rand, buildDataSignedForAuth(session, userAuthRequestMsg{
|
||||
User: user,
|
||||
|
@ -234,13 +231,29 @@ func (cb publicKeyCallback) auth(session []byte, user string, c packetConn, rand
|
|||
if err != nil {
|
||||
return false, nil, err
|
||||
}
|
||||
if success {
|
||||
|
||||
// If authentication succeeds or the list of available methods does not
|
||||
// contain the "publickey" method, do not attempt to authenticate with any
|
||||
// other keys. According to RFC 4252 Section 7, the latter can occur when
|
||||
// additional authentication methods are required.
|
||||
if success || !containsMethod(methods, cb.method()) {
|
||||
return success, methods, err
|
||||
}
|
||||
}
|
||||
|
||||
return false, methods, nil
|
||||
}
|
||||
|
||||
func containsMethod(methods []string, method string) bool {
|
||||
for _, m := range methods {
|
||||
if m == method {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
// validateKey validates the key provided is acceptable to the server.
|
||||
func validateKey(key PublicKey, user string, c packetConn) (bool, error) {
|
||||
pubKey := key.Marshal()
|
||||
|
@ -270,7 +283,9 @@ func confirmKeyAck(key PublicKey, c packetConn) (bool, error) {
|
|||
}
|
||||
switch packet[0] {
|
||||
case msgUserAuthBanner:
|
||||
// TODO(gpaul): add callback to present the banner to the user
|
||||
if err := handleBannerResponse(c, packet); err != nil {
|
||||
return false, err
|
||||
}
|
||||
case msgUserAuthPubKeyOk:
|
||||
var msg userAuthPubKeyOkMsg
|
||||
if err := Unmarshal(packet, &msg); err != nil {
|
||||
|
@ -312,7 +327,9 @@ func handleAuthResponse(c packetConn) (bool, []string, error) {
|
|||
|
||||
switch packet[0] {
|
||||
case msgUserAuthBanner:
|
||||
// TODO: add callback to present the banner to the user
|
||||
if err := handleBannerResponse(c, packet); err != nil {
|
||||
return false, nil, err
|
||||
}
|
||||
case msgUserAuthFailure:
|
||||
var msg userAuthFailureMsg
|
||||
if err := Unmarshal(packet, &msg); err != nil {
|
||||
|
@ -327,6 +344,24 @@ func handleAuthResponse(c packetConn) (bool, []string, error) {
|
|||
}
|
||||
}
|
||||
|
||||
func handleBannerResponse(c packetConn, packet []byte) error {
|
||||
var msg userAuthBannerMsg
|
||||
if err := Unmarshal(packet, &msg); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
transport, ok := c.(*handshakeTransport)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
|
||||
if transport.bannerCallback != nil {
|
||||
return transport.bannerCallback(msg.Message)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// KeyboardInteractiveChallenge should print questions, optionally
|
||||
// disabling echoing (e.g. for passwords), and return all the answers.
|
||||
// Challenge may be called multiple times in a single session. After
|
||||
|
@ -336,7 +371,7 @@ func handleAuthResponse(c packetConn) (bool, []string, error) {
|
|||
// both CLI and GUI environments.
|
||||
type KeyboardInteractiveChallenge func(user, instruction string, questions []string, echos []bool) (answers []string, err error)
|
||||
|
||||
// KeyboardInteractive returns a AuthMethod using a prompt/response
|
||||
// KeyboardInteractive returns an AuthMethod using a prompt/response
|
||||
// sequence controlled by the server.
|
||||
func KeyboardInteractive(challenge KeyboardInteractiveChallenge) AuthMethod {
|
||||
return challenge
|
||||
|
@ -372,7 +407,9 @@ func (cb KeyboardInteractiveChallenge) auth(session []byte, user string, c packe
|
|||
// like handleAuthResponse, but with less options.
|
||||
switch packet[0] {
|
||||
case msgUserAuthBanner:
|
||||
// TODO: Print banners during userauth.
|
||||
if err := handleBannerResponse(c, packet); err != nil {
|
||||
return false, nil, err
|
||||
}
|
||||
continue
|
||||
case msgUserAuthInfoRequest:
|
||||
// OK
|
||||
|
|
31
vendor/golang.org/x/crypto/ssh/common.go
generated
vendored
31
vendor/golang.org/x/crypto/ssh/common.go
generated
vendored
|
@ -9,6 +9,7 @@ import (
|
|||
"crypto/rand"
|
||||
"fmt"
|
||||
"io"
|
||||
"math"
|
||||
"sync"
|
||||
|
||||
_ "crypto/sha1"
|
||||
|
@ -40,7 +41,7 @@ var supportedKexAlgos = []string{
|
|||
kexAlgoDH14SHA1, kexAlgoDH1SHA1,
|
||||
}
|
||||
|
||||
// supportedKexAlgos specifies the supported host-key algorithms (i.e. methods
|
||||
// supportedHostKeyAlgos specifies the supported host-key algorithms (i.e. methods
|
||||
// of authenticating servers) in preference order.
|
||||
var supportedHostKeyAlgos = []string{
|
||||
CertAlgoRSAv01, CertAlgoDSAv01, CertAlgoECDSA256v01,
|
||||
|
@ -56,7 +57,7 @@ var supportedHostKeyAlgos = []string{
|
|||
// This is based on RFC 4253, section 6.4, but with hmac-md5 variants removed
|
||||
// because they have reached the end of their useful life.
|
||||
var supportedMACs = []string{
|
||||
"hmac-sha2-256", "hmac-sha1", "hmac-sha1-96",
|
||||
"hmac-sha2-256-etm@openssh.com", "hmac-sha2-256", "hmac-sha1", "hmac-sha1-96",
|
||||
}
|
||||
|
||||
var supportedCompressions = []string{compressionNone}
|
||||
|
@ -104,6 +105,21 @@ type directionAlgorithms struct {
|
|||
Compression string
|
||||
}
|
||||
|
||||
// rekeyBytes returns a rekeying intervals in bytes.
|
||||
func (a *directionAlgorithms) rekeyBytes() int64 {
|
||||
// According to RFC4344 block ciphers should rekey after
|
||||
// 2^(BLOCKSIZE/4) blocks. For all AES flavors BLOCKSIZE is
|
||||
// 128.
|
||||
switch a.Cipher {
|
||||
case "aes128-ctr", "aes192-ctr", "aes256-ctr", gcmCipherID, aes128cbcID:
|
||||
return 16 * (1 << 32)
|
||||
|
||||
}
|
||||
|
||||
// For others, stick with RFC4253 recommendation to rekey after 1 Gb of data.
|
||||
return 1 << 30
|
||||
}
|
||||
|
||||
type algorithms struct {
|
||||
kex string
|
||||
hostKey string
|
||||
|
@ -171,7 +187,7 @@ type Config struct {
|
|||
|
||||
// The maximum number of bytes sent or received after which a
|
||||
// new key is negotiated. It must be at least 256. If
|
||||
// unspecified, 1 gigabyte is used.
|
||||
// unspecified, a size suitable for the chosen cipher is used.
|
||||
RekeyThreshold uint64
|
||||
|
||||
// The allowed key exchanges algorithms. If unspecified then a
|
||||
|
@ -215,11 +231,12 @@ func (c *Config) SetDefaults() {
|
|||
}
|
||||
|
||||
if c.RekeyThreshold == 0 {
|
||||
// RFC 4253, section 9 suggests rekeying after 1G.
|
||||
c.RekeyThreshold = 1 << 30
|
||||
}
|
||||
if c.RekeyThreshold < minRekeyThreshold {
|
||||
// cipher specific default
|
||||
} else if c.RekeyThreshold < minRekeyThreshold {
|
||||
c.RekeyThreshold = minRekeyThreshold
|
||||
} else if c.RekeyThreshold >= math.MaxInt64 {
|
||||
// Avoid weirdness if somebody uses -1 as a threshold.
|
||||
c.RekeyThreshold = math.MaxInt64
|
||||
}
|
||||
}
|
||||
|
||||
|
|
2
vendor/golang.org/x/crypto/ssh/connection.go
generated
vendored
2
vendor/golang.org/x/crypto/ssh/connection.go
generated
vendored
|
@ -25,7 +25,7 @@ type ConnMetadata interface {
|
|||
// User returns the user ID for this connection.
|
||||
User() string
|
||||
|
||||
// SessionID returns the sesson hash, also denoted by H.
|
||||
// SessionID returns the session hash, also denoted by H.
|
||||
SessionID() []byte
|
||||
|
||||
// ClientVersion returns the client's version string as hashed
|
||||
|
|
3
vendor/golang.org/x/crypto/ssh/doc.go
generated
vendored
3
vendor/golang.org/x/crypto/ssh/doc.go
generated
vendored
|
@ -14,5 +14,8 @@ others.
|
|||
References:
|
||||
[PROTOCOL.certkeys]: http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/PROTOCOL.certkeys?rev=HEAD
|
||||
[SSH-PARAMETERS]: http://www.iana.org/assignments/ssh-parameters/ssh-parameters.xml#ssh-parameters-1
|
||||
|
||||
This package does not fall under the stability promise of the Go language itself,
|
||||
so its API may be changed when pressing needs arise.
|
||||
*/
|
||||
package ssh // import "golang.org/x/crypto/ssh"
|
||||
|
|
446
vendor/golang.org/x/crypto/ssh/handshake.go
generated
vendored
446
vendor/golang.org/x/crypto/ssh/handshake.go
generated
vendored
|
@ -19,6 +19,11 @@ import (
|
|||
// messages are wrong when using ECDH.
|
||||
const debugHandshake = false
|
||||
|
||||
// chanSize sets the amount of buffering SSH connections. This is
|
||||
// primarily for testing: setting chanSize=0 uncovers deadlocks more
|
||||
// quickly.
|
||||
const chanSize = 16
|
||||
|
||||
// keyingTransport is a packet based transport that supports key
|
||||
// changes. It need not be thread-safe. It should pass through
|
||||
// msgNewKeys in both directions.
|
||||
|
@ -53,34 +58,65 @@ type handshakeTransport struct {
|
|||
incoming chan []byte
|
||||
readError error
|
||||
|
||||
mu sync.Mutex
|
||||
writeError error
|
||||
sentInitPacket []byte
|
||||
sentInitMsg *kexInitMsg
|
||||
pendingPackets [][]byte // Used when a key exchange is in progress.
|
||||
|
||||
// If the read loop wants to schedule a kex, it pings this
|
||||
// channel, and the write loop will send out a kex
|
||||
// message.
|
||||
requestKex chan struct{}
|
||||
|
||||
// If the other side requests or confirms a kex, its kexInit
|
||||
// packet is sent here for the write loop to find it.
|
||||
startKex chan *pendingKex
|
||||
|
||||
// data for host key checking
|
||||
hostKeyCallback func(hostname string, remote net.Addr, key PublicKey) error
|
||||
hostKeyCallback HostKeyCallback
|
||||
dialAddress string
|
||||
remoteAddr net.Addr
|
||||
|
||||
readSinceKex uint64
|
||||
// bannerCallback is non-empty if we are the client and it has been set in
|
||||
// ClientConfig. In that case it is called during the user authentication
|
||||
// dance to handle a custom server's message.
|
||||
bannerCallback BannerCallback
|
||||
|
||||
// Protects the writing side of the connection
|
||||
mu sync.Mutex
|
||||
cond *sync.Cond
|
||||
sentInitPacket []byte
|
||||
sentInitMsg *kexInitMsg
|
||||
writtenSinceKex uint64
|
||||
writeError error
|
||||
// Algorithms agreed in the last key exchange.
|
||||
algorithms *algorithms
|
||||
|
||||
readPacketsLeft uint32
|
||||
readBytesLeft int64
|
||||
|
||||
writePacketsLeft uint32
|
||||
writeBytesLeft int64
|
||||
|
||||
// The session ID or nil if first kex did not complete yet.
|
||||
sessionID []byte
|
||||
}
|
||||
|
||||
type pendingKex struct {
|
||||
otherInit []byte
|
||||
done chan error
|
||||
}
|
||||
|
||||
func newHandshakeTransport(conn keyingTransport, config *Config, clientVersion, serverVersion []byte) *handshakeTransport {
|
||||
t := &handshakeTransport{
|
||||
conn: conn,
|
||||
serverVersion: serverVersion,
|
||||
clientVersion: clientVersion,
|
||||
incoming: make(chan []byte, 16),
|
||||
incoming: make(chan []byte, chanSize),
|
||||
requestKex: make(chan struct{}, 1),
|
||||
startKex: make(chan *pendingKex, 1),
|
||||
|
||||
config: config,
|
||||
}
|
||||
t.cond = sync.NewCond(&t.mu)
|
||||
t.resetReadThresholds()
|
||||
t.resetWriteThresholds()
|
||||
|
||||
// We always start with a mandatory key exchange.
|
||||
t.requestKex <- struct{}{}
|
||||
return t
|
||||
}
|
||||
|
||||
|
@ -89,12 +125,14 @@ func newClientTransport(conn keyingTransport, clientVersion, serverVersion []byt
|
|||
t.dialAddress = dialAddr
|
||||
t.remoteAddr = addr
|
||||
t.hostKeyCallback = config.HostKeyCallback
|
||||
t.bannerCallback = config.BannerCallback
|
||||
if config.HostKeyAlgorithms != nil {
|
||||
t.hostKeyAlgorithms = config.HostKeyAlgorithms
|
||||
} else {
|
||||
t.hostKeyAlgorithms = supportedHostKeyAlgos
|
||||
}
|
||||
go t.readLoop()
|
||||
go t.kexLoop()
|
||||
return t
|
||||
}
|
||||
|
||||
|
@ -102,6 +140,7 @@ func newServerTransport(conn keyingTransport, clientVersion, serverVersion []byt
|
|||
t := newHandshakeTransport(conn, &config.Config, clientVersion, serverVersion)
|
||||
t.hostKeys = config.hostKeys
|
||||
go t.readLoop()
|
||||
go t.kexLoop()
|
||||
return t
|
||||
}
|
||||
|
||||
|
@ -109,6 +148,20 @@ func (t *handshakeTransport) getSessionID() []byte {
|
|||
return t.sessionID
|
||||
}
|
||||
|
||||
// waitSession waits for the session to be established. This should be
|
||||
// the first thing to call after instantiating handshakeTransport.
|
||||
func (t *handshakeTransport) waitSession() error {
|
||||
p, err := t.readPacket()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if p[0] != msgNewKeys {
|
||||
return fmt.Errorf("ssh: first packet should be msgNewKeys")
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) id() string {
|
||||
if len(t.hostKeys) > 0 {
|
||||
return "server"
|
||||
|
@ -116,6 +169,20 @@ func (t *handshakeTransport) id() string {
|
|||
return "client"
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) printPacket(p []byte, write bool) {
|
||||
action := "got"
|
||||
if write {
|
||||
action = "sent"
|
||||
}
|
||||
|
||||
if p[0] == msgChannelData || p[0] == msgChannelExtendedData {
|
||||
log.Printf("%s %s data (packet %d bytes)", t.id(), action, len(p))
|
||||
} else {
|
||||
msg, err := decode(p)
|
||||
log.Printf("%s %s %T %v (%v)", t.id(), action, msg, msg, err)
|
||||
}
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) readPacket() ([]byte, error) {
|
||||
p, ok := <-t.incoming
|
||||
if !ok {
|
||||
|
@ -125,8 +192,10 @@ func (t *handshakeTransport) readPacket() ([]byte, error) {
|
|||
}
|
||||
|
||||
func (t *handshakeTransport) readLoop() {
|
||||
first := true
|
||||
for {
|
||||
p, err := t.readOnePacket()
|
||||
p, err := t.readOnePacket(first)
|
||||
first = false
|
||||
if err != nil {
|
||||
t.readError = err
|
||||
close(t.incoming)
|
||||
|
@ -138,67 +207,217 @@ func (t *handshakeTransport) readLoop() {
|
|||
t.incoming <- p
|
||||
}
|
||||
|
||||
// If we can't read, declare the writing part dead too.
|
||||
// Stop writers too.
|
||||
t.recordWriteError(t.readError)
|
||||
|
||||
// Unblock the writer should it wait for this.
|
||||
close(t.startKex)
|
||||
|
||||
// Don't close t.requestKex; it's also written to from writePacket.
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) pushPacket(p []byte) error {
|
||||
if debugHandshake {
|
||||
t.printPacket(p, true)
|
||||
}
|
||||
return t.conn.writePacket(p)
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) getWriteError() error {
|
||||
t.mu.Lock()
|
||||
defer t.mu.Unlock()
|
||||
if t.writeError == nil {
|
||||
t.writeError = t.readError
|
||||
}
|
||||
t.cond.Broadcast()
|
||||
return t.writeError
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) readOnePacket() ([]byte, error) {
|
||||
if t.readSinceKex > t.config.RekeyThreshold {
|
||||
if err := t.requestKeyChange(); err != nil {
|
||||
return nil, err
|
||||
func (t *handshakeTransport) recordWriteError(err error) {
|
||||
t.mu.Lock()
|
||||
defer t.mu.Unlock()
|
||||
if t.writeError == nil && err != nil {
|
||||
t.writeError = err
|
||||
}
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) requestKeyExchange() {
|
||||
select {
|
||||
case t.requestKex <- struct{}{}:
|
||||
default:
|
||||
// something already requested a kex, so do nothing.
|
||||
}
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) resetWriteThresholds() {
|
||||
t.writePacketsLeft = packetRekeyThreshold
|
||||
if t.config.RekeyThreshold > 0 {
|
||||
t.writeBytesLeft = int64(t.config.RekeyThreshold)
|
||||
} else if t.algorithms != nil {
|
||||
t.writeBytesLeft = t.algorithms.w.rekeyBytes()
|
||||
} else {
|
||||
t.writeBytesLeft = 1 << 30
|
||||
}
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) kexLoop() {
|
||||
|
||||
write:
|
||||
for t.getWriteError() == nil {
|
||||
var request *pendingKex
|
||||
var sent bool
|
||||
|
||||
for request == nil || !sent {
|
||||
var ok bool
|
||||
select {
|
||||
case request, ok = <-t.startKex:
|
||||
if !ok {
|
||||
break write
|
||||
}
|
||||
case <-t.requestKex:
|
||||
break
|
||||
}
|
||||
|
||||
if !sent {
|
||||
if err := t.sendKexInit(); err != nil {
|
||||
t.recordWriteError(err)
|
||||
break
|
||||
}
|
||||
sent = true
|
||||
}
|
||||
}
|
||||
|
||||
if err := t.getWriteError(); err != nil {
|
||||
if request != nil {
|
||||
request.done <- err
|
||||
}
|
||||
break
|
||||
}
|
||||
|
||||
// We're not servicing t.requestKex, but that is OK:
|
||||
// we never block on sending to t.requestKex.
|
||||
|
||||
// We're not servicing t.startKex, but the remote end
|
||||
// has just sent us a kexInitMsg, so it can't send
|
||||
// another key change request, until we close the done
|
||||
// channel on the pendingKex request.
|
||||
|
||||
err := t.enterKeyExchange(request.otherInit)
|
||||
|
||||
t.mu.Lock()
|
||||
t.writeError = err
|
||||
t.sentInitPacket = nil
|
||||
t.sentInitMsg = nil
|
||||
|
||||
t.resetWriteThresholds()
|
||||
|
||||
// we have completed the key exchange. Since the
|
||||
// reader is still blocked, it is safe to clear out
|
||||
// the requestKex channel. This avoids the situation
|
||||
// where: 1) we consumed our own request for the
|
||||
// initial kex, and 2) the kex from the remote side
|
||||
// caused another send on the requestKex channel,
|
||||
clear:
|
||||
for {
|
||||
select {
|
||||
case <-t.requestKex:
|
||||
//
|
||||
default:
|
||||
break clear
|
||||
}
|
||||
}
|
||||
|
||||
request.done <- t.writeError
|
||||
|
||||
// kex finished. Push packets that we received while
|
||||
// the kex was in progress. Don't look at t.startKex
|
||||
// and don't increment writtenSinceKex: if we trigger
|
||||
// another kex while we are still busy with the last
|
||||
// one, things will become very confusing.
|
||||
for _, p := range t.pendingPackets {
|
||||
t.writeError = t.pushPacket(p)
|
||||
if t.writeError != nil {
|
||||
break
|
||||
}
|
||||
}
|
||||
t.pendingPackets = t.pendingPackets[:0]
|
||||
t.mu.Unlock()
|
||||
}
|
||||
|
||||
// drain startKex channel. We don't service t.requestKex
|
||||
// because nobody does blocking sends there.
|
||||
go func() {
|
||||
for init := range t.startKex {
|
||||
init.done <- t.writeError
|
||||
}
|
||||
}()
|
||||
|
||||
// Unblock reader.
|
||||
t.conn.Close()
|
||||
}
|
||||
|
||||
// The protocol uses uint32 for packet counters, so we can't let them
|
||||
// reach 1<<32. We will actually read and write more packets than
|
||||
// this, though: the other side may send more packets, and after we
|
||||
// hit this limit on writing we will send a few more packets for the
|
||||
// key exchange itself.
|
||||
const packetRekeyThreshold = (1 << 31)
|
||||
|
||||
func (t *handshakeTransport) resetReadThresholds() {
|
||||
t.readPacketsLeft = packetRekeyThreshold
|
||||
if t.config.RekeyThreshold > 0 {
|
||||
t.readBytesLeft = int64(t.config.RekeyThreshold)
|
||||
} else if t.algorithms != nil {
|
||||
t.readBytesLeft = t.algorithms.r.rekeyBytes()
|
||||
} else {
|
||||
t.readBytesLeft = 1 << 30
|
||||
}
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) readOnePacket(first bool) ([]byte, error) {
|
||||
p, err := t.conn.readPacket()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
t.readSinceKex += uint64(len(p))
|
||||
if debugHandshake {
|
||||
if p[0] == msgChannelData || p[0] == msgChannelExtendedData {
|
||||
log.Printf("%s got data (packet %d bytes)", t.id(), len(p))
|
||||
if t.readPacketsLeft > 0 {
|
||||
t.readPacketsLeft--
|
||||
} else {
|
||||
msg, err := decode(p)
|
||||
log.Printf("%s got %T %v (%v)", t.id(), msg, msg, err)
|
||||
t.requestKeyExchange()
|
||||
}
|
||||
|
||||
if t.readBytesLeft > 0 {
|
||||
t.readBytesLeft -= int64(len(p))
|
||||
} else {
|
||||
t.requestKeyExchange()
|
||||
}
|
||||
|
||||
if debugHandshake {
|
||||
t.printPacket(p, false)
|
||||
}
|
||||
|
||||
if first && p[0] != msgKexInit {
|
||||
return nil, fmt.Errorf("ssh: first packet should be msgKexInit")
|
||||
}
|
||||
|
||||
if p[0] != msgKexInit {
|
||||
return p, nil
|
||||
}
|
||||
|
||||
t.mu.Lock()
|
||||
|
||||
firstKex := t.sessionID == nil
|
||||
|
||||
err = t.enterKeyExchangeLocked(p)
|
||||
if err != nil {
|
||||
// drop connection
|
||||
t.conn.Close()
|
||||
t.writeError = err
|
||||
kex := pendingKex{
|
||||
done: make(chan error, 1),
|
||||
otherInit: p,
|
||||
}
|
||||
t.startKex <- &kex
|
||||
err = <-kex.done
|
||||
|
||||
if debugHandshake {
|
||||
log.Printf("%s exited key exchange (first %v), err %v", t.id(), firstKex, err)
|
||||
}
|
||||
|
||||
// Unblock writers.
|
||||
t.sentInitMsg = nil
|
||||
t.sentInitPacket = nil
|
||||
t.cond.Broadcast()
|
||||
t.writtenSinceKex = 0
|
||||
t.mu.Unlock()
|
||||
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
t.readSinceKex = 0
|
||||
t.resetReadThresholds()
|
||||
|
||||
// By default, a key exchange is hidden from higher layers by
|
||||
// translating it into msgIgnore.
|
||||
|
@ -213,61 +432,16 @@ func (t *handshakeTransport) readOnePacket() ([]byte, error) {
|
|||
return successPacket, nil
|
||||
}
|
||||
|
||||
// keyChangeCategory describes whether a key exchange is the first on a
|
||||
// connection, or a subsequent one.
|
||||
type keyChangeCategory bool
|
||||
|
||||
const (
|
||||
firstKeyExchange keyChangeCategory = true
|
||||
subsequentKeyExchange keyChangeCategory = false
|
||||
)
|
||||
|
||||
// sendKexInit sends a key change message, and returns the message
|
||||
// that was sent. After initiating the key change, all writes will be
|
||||
// blocked until the change is done, and a failed key change will
|
||||
// close the underlying transport. This function is safe for
|
||||
// concurrent use by multiple goroutines.
|
||||
func (t *handshakeTransport) sendKexInit(isFirst keyChangeCategory) error {
|
||||
var err error
|
||||
|
||||
// sendKexInit sends a key change message.
|
||||
func (t *handshakeTransport) sendKexInit() error {
|
||||
t.mu.Lock()
|
||||
// If this is the initial key change, but we already have a sessionID,
|
||||
// then do nothing because the key exchange has already completed
|
||||
// asynchronously.
|
||||
if !isFirst || t.sessionID == nil {
|
||||
_, _, err = t.sendKexInitLocked(isFirst)
|
||||
}
|
||||
t.mu.Unlock()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if isFirst {
|
||||
if packet, err := t.readPacket(); err != nil {
|
||||
return err
|
||||
} else if packet[0] != msgNewKeys {
|
||||
return unexpectedMessageError(msgNewKeys, packet[0])
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) requestInitialKeyChange() error {
|
||||
return t.sendKexInit(firstKeyExchange)
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) requestKeyChange() error {
|
||||
return t.sendKexInit(subsequentKeyExchange)
|
||||
}
|
||||
|
||||
// sendKexInitLocked sends a key change message. t.mu must be locked
|
||||
// while this happens.
|
||||
func (t *handshakeTransport) sendKexInitLocked(isFirst keyChangeCategory) (*kexInitMsg, []byte, error) {
|
||||
defer t.mu.Unlock()
|
||||
if t.sentInitMsg != nil {
|
||||
// kexInits may be sent either in response to the other side,
|
||||
// or because our side wants to initiate a key change, so we
|
||||
// may have already sent a kexInit. In that case, don't send a
|
||||
// second kexInit.
|
||||
if t.sentInitMsg != nil {
|
||||
return t.sentInitMsg, t.sentInitPacket, nil
|
||||
return nil
|
||||
}
|
||||
|
||||
msg := &kexInitMsg{
|
||||
|
@ -295,53 +469,65 @@ func (t *handshakeTransport) sendKexInitLocked(isFirst keyChangeCategory) (*kexI
|
|||
packetCopy := make([]byte, len(packet))
|
||||
copy(packetCopy, packet)
|
||||
|
||||
if err := t.conn.writePacket(packetCopy); err != nil {
|
||||
return nil, nil, err
|
||||
if err := t.pushPacket(packetCopy); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
t.sentInitMsg = msg
|
||||
t.sentInitPacket = packet
|
||||
return msg, packet, nil
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) writePacket(p []byte) error {
|
||||
t.mu.Lock()
|
||||
defer t.mu.Unlock()
|
||||
|
||||
if t.writtenSinceKex > t.config.RekeyThreshold {
|
||||
t.sendKexInitLocked(subsequentKeyExchange)
|
||||
}
|
||||
for t.sentInitMsg != nil && t.writeError == nil {
|
||||
t.cond.Wait()
|
||||
}
|
||||
if t.writeError != nil {
|
||||
return t.writeError
|
||||
}
|
||||
t.writtenSinceKex += uint64(len(p))
|
||||
|
||||
switch p[0] {
|
||||
case msgKexInit:
|
||||
return errors.New("ssh: only handshakeTransport can send kexInit")
|
||||
case msgNewKeys:
|
||||
return errors.New("ssh: only handshakeTransport can send newKeys")
|
||||
default:
|
||||
return t.conn.writePacket(p)
|
||||
}
|
||||
|
||||
t.mu.Lock()
|
||||
defer t.mu.Unlock()
|
||||
if t.writeError != nil {
|
||||
return t.writeError
|
||||
}
|
||||
|
||||
if t.sentInitMsg != nil {
|
||||
// Copy the packet so the writer can reuse the buffer.
|
||||
cp := make([]byte, len(p))
|
||||
copy(cp, p)
|
||||
t.pendingPackets = append(t.pendingPackets, cp)
|
||||
return nil
|
||||
}
|
||||
|
||||
if t.writeBytesLeft > 0 {
|
||||
t.writeBytesLeft -= int64(len(p))
|
||||
} else {
|
||||
t.requestKeyExchange()
|
||||
}
|
||||
|
||||
if t.writePacketsLeft > 0 {
|
||||
t.writePacketsLeft--
|
||||
} else {
|
||||
t.requestKeyExchange()
|
||||
}
|
||||
|
||||
if err := t.pushPacket(p); err != nil {
|
||||
t.writeError = err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (t *handshakeTransport) Close() error {
|
||||
return t.conn.Close()
|
||||
}
|
||||
|
||||
// enterKeyExchange runs the key exchange. t.mu must be held while running this.
|
||||
func (t *handshakeTransport) enterKeyExchangeLocked(otherInitPacket []byte) error {
|
||||
func (t *handshakeTransport) enterKeyExchange(otherInitPacket []byte) error {
|
||||
if debugHandshake {
|
||||
log.Printf("%s entered key exchange", t.id())
|
||||
}
|
||||
myInit, myInitPacket, err := t.sendKexInitLocked(subsequentKeyExchange)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
otherInit := &kexInitMsg{}
|
||||
if err := Unmarshal(otherInitPacket, otherInit); err != nil {
|
||||
|
@ -352,20 +538,20 @@ func (t *handshakeTransport) enterKeyExchangeLocked(otherInitPacket []byte) erro
|
|||
clientVersion: t.clientVersion,
|
||||
serverVersion: t.serverVersion,
|
||||
clientKexInit: otherInitPacket,
|
||||
serverKexInit: myInitPacket,
|
||||
serverKexInit: t.sentInitPacket,
|
||||
}
|
||||
|
||||
clientInit := otherInit
|
||||
serverInit := myInit
|
||||
serverInit := t.sentInitMsg
|
||||
if len(t.hostKeys) == 0 {
|
||||
clientInit = myInit
|
||||
serverInit = otherInit
|
||||
clientInit, serverInit = serverInit, clientInit
|
||||
|
||||
magics.clientKexInit = myInitPacket
|
||||
magics.clientKexInit = t.sentInitPacket
|
||||
magics.serverKexInit = otherInitPacket
|
||||
}
|
||||
|
||||
algs, err := findAgreedAlgorithms(clientInit, serverInit)
|
||||
var err error
|
||||
t.algorithms, err = findAgreedAlgorithms(clientInit, serverInit)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
@ -388,16 +574,16 @@ func (t *handshakeTransport) enterKeyExchangeLocked(otherInitPacket []byte) erro
|
|||
}
|
||||
}
|
||||
|
||||
kex, ok := kexAlgoMap[algs.kex]
|
||||
kex, ok := kexAlgoMap[t.algorithms.kex]
|
||||
if !ok {
|
||||
return fmt.Errorf("ssh: unexpected key exchange algorithm %v", algs.kex)
|
||||
return fmt.Errorf("ssh: unexpected key exchange algorithm %v", t.algorithms.kex)
|
||||
}
|
||||
|
||||
var result *kexResult
|
||||
if len(t.hostKeys) > 0 {
|
||||
result, err = t.server(kex, algs, &magics)
|
||||
result, err = t.server(kex, t.algorithms, &magics)
|
||||
} else {
|
||||
result, err = t.client(kex, algs, &magics)
|
||||
result, err = t.client(kex, t.algorithms, &magics)
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
|
@ -409,7 +595,9 @@ func (t *handshakeTransport) enterKeyExchangeLocked(otherInitPacket []byte) erro
|
|||
}
|
||||
result.SessionID = t.sessionID
|
||||
|
||||
t.conn.prepareKeyChange(algs, result)
|
||||
if err := t.conn.prepareKeyChange(t.algorithms, result); err != nil {
|
||||
return err
|
||||
}
|
||||
if err = t.conn.writePacket([]byte{msgNewKeys}); err != nil {
|
||||
return err
|
||||
}
|
||||
|
@ -449,12 +637,10 @@ func (t *handshakeTransport) client(kex kexAlgorithm, algs *algorithms, magics *
|
|||
return nil, err
|
||||
}
|
||||
|
||||
if t.hostKeyCallback != nil {
|
||||
err = t.hostKeyCallback(t.dialAddress, t.remoteAddr, hostKey)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
return result, nil
|
||||
}
|
||||
|
|
195
vendor/golang.org/x/crypto/ssh/keys.go
generated
vendored
195
vendor/golang.org/x/crypto/ssh/keys.go
generated
vendored
|
@ -10,10 +10,13 @@ import (
|
|||
"crypto/dsa"
|
||||
"crypto/ecdsa"
|
||||
"crypto/elliptic"
|
||||
"crypto/md5"
|
||||
"crypto/rsa"
|
||||
"crypto/sha256"
|
||||
"crypto/x509"
|
||||
"encoding/asn1"
|
||||
"encoding/base64"
|
||||
"encoding/hex"
|
||||
"encoding/pem"
|
||||
"errors"
|
||||
"fmt"
|
||||
|
@ -364,6 +367,17 @@ func (r *dsaPublicKey) Type() string {
|
|||
return "ssh-dss"
|
||||
}
|
||||
|
||||
func checkDSAParams(param *dsa.Parameters) error {
|
||||
// SSH specifies FIPS 186-2, which only provided a single size
|
||||
// (1024 bits) DSA key. FIPS 186-3 allows for larger key
|
||||
// sizes, which would confuse SSH.
|
||||
if l := param.P.BitLen(); l != 1024 {
|
||||
return fmt.Errorf("ssh: unsupported DSA key size %d", l)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// parseDSA parses an DSA key according to RFC 4253, section 6.6.
|
||||
func parseDSA(in []byte) (out PublicKey, rest []byte, err error) {
|
||||
var w struct {
|
||||
|
@ -374,12 +388,17 @@ func parseDSA(in []byte) (out PublicKey, rest []byte, err error) {
|
|||
return nil, nil, err
|
||||
}
|
||||
|
||||
key := &dsaPublicKey{
|
||||
Parameters: dsa.Parameters{
|
||||
param := dsa.Parameters{
|
||||
P: w.P,
|
||||
Q: w.Q,
|
||||
G: w.G,
|
||||
},
|
||||
}
|
||||
if err := checkDSAParams(¶m); err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
|
||||
key := &dsaPublicKey{
|
||||
Parameters: param,
|
||||
Y: w.Y,
|
||||
}
|
||||
return key, w.Rest, nil
|
||||
|
@ -627,19 +646,28 @@ func (k *ecdsaPublicKey) CryptoPublicKey() crypto.PublicKey {
|
|||
}
|
||||
|
||||
// NewSignerFromKey takes an *rsa.PrivateKey, *dsa.PrivateKey,
|
||||
// *ecdsa.PrivateKey or any other crypto.Signer and returns a corresponding
|
||||
// Signer instance. ECDSA keys must use P-256, P-384 or P-521.
|
||||
// *ecdsa.PrivateKey or any other crypto.Signer and returns a
|
||||
// corresponding Signer instance. ECDSA keys must use P-256, P-384 or
|
||||
// P-521. DSA keys must use parameter size L1024N160.
|
||||
func NewSignerFromKey(key interface{}) (Signer, error) {
|
||||
switch key := key.(type) {
|
||||
case crypto.Signer:
|
||||
return NewSignerFromSigner(key)
|
||||
case *dsa.PrivateKey:
|
||||
return &dsaPrivateKey{key}, nil
|
||||
return newDSAPrivateKey(key)
|
||||
default:
|
||||
return nil, fmt.Errorf("ssh: unsupported key type %T", key)
|
||||
}
|
||||
}
|
||||
|
||||
func newDSAPrivateKey(key *dsa.PrivateKey) (Signer, error) {
|
||||
if err := checkDSAParams(&key.PublicKey.Parameters); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return &dsaPrivateKey{key}, nil
|
||||
}
|
||||
|
||||
type wrappedSigner struct {
|
||||
signer crypto.Signer
|
||||
pubKey PublicKey
|
||||
|
@ -753,6 +781,18 @@ func ParsePrivateKey(pemBytes []byte) (Signer, error) {
|
|||
return NewSignerFromKey(key)
|
||||
}
|
||||
|
||||
// ParsePrivateKeyWithPassphrase returns a Signer from a PEM encoded private
|
||||
// key and passphrase. It supports the same keys as
|
||||
// ParseRawPrivateKeyWithPassphrase.
|
||||
func ParsePrivateKeyWithPassphrase(pemBytes, passPhrase []byte) (Signer, error) {
|
||||
key, err := ParseRawPrivateKeyWithPassphrase(pemBytes, passPhrase)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return NewSignerFromKey(key)
|
||||
}
|
||||
|
||||
// encryptedBlock tells whether a private key is
|
||||
// encrypted by examining its Proc-Type header
|
||||
// for a mention of ENCRYPTED
|
||||
|
@ -787,6 +827,43 @@ func ParseRawPrivateKey(pemBytes []byte) (interface{}, error) {
|
|||
}
|
||||
}
|
||||
|
||||
// ParseRawPrivateKeyWithPassphrase returns a private key decrypted with
|
||||
// passphrase from a PEM encoded private key. If wrong passphrase, return
|
||||
// x509.IncorrectPasswordError.
|
||||
func ParseRawPrivateKeyWithPassphrase(pemBytes, passPhrase []byte) (interface{}, error) {
|
||||
block, _ := pem.Decode(pemBytes)
|
||||
if block == nil {
|
||||
return nil, errors.New("ssh: no key found")
|
||||
}
|
||||
buf := block.Bytes
|
||||
|
||||
if encryptedBlock(block) {
|
||||
if x509.IsEncryptedPEMBlock(block) {
|
||||
var err error
|
||||
buf, err = x509.DecryptPEMBlock(block, passPhrase)
|
||||
if err != nil {
|
||||
if err == x509.IncorrectPasswordError {
|
||||
return nil, err
|
||||
}
|
||||
return nil, fmt.Errorf("ssh: cannot decode encrypted private keys: %v", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
switch block.Type {
|
||||
case "RSA PRIVATE KEY":
|
||||
return x509.ParsePKCS1PrivateKey(buf)
|
||||
case "EC PRIVATE KEY":
|
||||
return x509.ParseECPrivateKey(buf)
|
||||
case "DSA PRIVATE KEY":
|
||||
return ParseDSAPrivateKey(buf)
|
||||
case "OPENSSH PRIVATE KEY":
|
||||
return parseOpenSSHPrivateKey(buf)
|
||||
default:
|
||||
return nil, fmt.Errorf("ssh: unsupported key type %q", block.Type)
|
||||
}
|
||||
}
|
||||
|
||||
// ParseDSAPrivateKey returns a DSA private key from its ASN.1 DER encoding, as
|
||||
// specified by the OpenSSL DSA man page.
|
||||
func ParseDSAPrivateKey(der []byte) (*dsa.PrivateKey, error) {
|
||||
|
@ -795,8 +872,8 @@ func ParseDSAPrivateKey(der []byte) (*dsa.PrivateKey, error) {
|
|||
P *big.Int
|
||||
Q *big.Int
|
||||
G *big.Int
|
||||
Priv *big.Int
|
||||
Pub *big.Int
|
||||
Priv *big.Int
|
||||
}
|
||||
rest, err := asn1.Unmarshal(der, &k)
|
||||
if err != nil {
|
||||
|
@ -813,15 +890,15 @@ func ParseDSAPrivateKey(der []byte) (*dsa.PrivateKey, error) {
|
|||
Q: k.Q,
|
||||
G: k.G,
|
||||
},
|
||||
Y: k.Priv,
|
||||
Y: k.Pub,
|
||||
},
|
||||
X: k.Pub,
|
||||
X: k.Priv,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Implemented based on the documentation at
|
||||
// https://github.com/openssh/openssh-portable/blob/master/PROTOCOL.key
|
||||
func parseOpenSSHPrivateKey(key []byte) (*ed25519.PrivateKey, error) {
|
||||
func parseOpenSSHPrivateKey(key []byte) (crypto.PrivateKey, error) {
|
||||
magic := append([]byte("openssh-key-v1"), 0)
|
||||
if !bytes.Equal(magic, key[0:len(magic)]) {
|
||||
return nil, errors.New("ssh: invalid openssh private key format")
|
||||
|
@ -841,14 +918,15 @@ func parseOpenSSHPrivateKey(key []byte) (*ed25519.PrivateKey, error) {
|
|||
return nil, err
|
||||
}
|
||||
|
||||
if w.KdfName != "none" || w.CipherName != "none" {
|
||||
return nil, errors.New("ssh: cannot decode encrypted private keys")
|
||||
}
|
||||
|
||||
pk1 := struct {
|
||||
Check1 uint32
|
||||
Check2 uint32
|
||||
Keytype string
|
||||
Pub []byte
|
||||
Priv []byte
|
||||
Comment string
|
||||
Pad []byte `ssh:"rest"`
|
||||
Rest []byte `ssh:"rest"`
|
||||
}{}
|
||||
|
||||
if err := Unmarshal(w.PrivKeyBlock, &pk1); err != nil {
|
||||
|
@ -859,22 +937,95 @@ func parseOpenSSHPrivateKey(key []byte) (*ed25519.PrivateKey, error) {
|
|||
return nil, errors.New("ssh: checkint mismatch")
|
||||
}
|
||||
|
||||
// we only handle ed25519 keys currently
|
||||
if pk1.Keytype != KeyAlgoED25519 {
|
||||
return nil, errors.New("ssh: unhandled key type")
|
||||
// we only handle ed25519 and rsa keys currently
|
||||
switch pk1.Keytype {
|
||||
case KeyAlgoRSA:
|
||||
// https://github.com/openssh/openssh-portable/blob/master/sshkey.c#L2760-L2773
|
||||
key := struct {
|
||||
N *big.Int
|
||||
E *big.Int
|
||||
D *big.Int
|
||||
Iqmp *big.Int
|
||||
P *big.Int
|
||||
Q *big.Int
|
||||
Comment string
|
||||
Pad []byte `ssh:"rest"`
|
||||
}{}
|
||||
|
||||
if err := Unmarshal(pk1.Rest, &key); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
for i, b := range pk1.Pad {
|
||||
for i, b := range key.Pad {
|
||||
if int(b) != i+1 {
|
||||
return nil, errors.New("ssh: padding not as expected")
|
||||
}
|
||||
}
|
||||
|
||||
if len(pk1.Priv) != ed25519.PrivateKeySize {
|
||||
pk := &rsa.PrivateKey{
|
||||
PublicKey: rsa.PublicKey{
|
||||
N: key.N,
|
||||
E: int(key.E.Int64()),
|
||||
},
|
||||
D: key.D,
|
||||
Primes: []*big.Int{key.P, key.Q},
|
||||
}
|
||||
|
||||
if err := pk.Validate(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
pk.Precompute()
|
||||
|
||||
return pk, nil
|
||||
case KeyAlgoED25519:
|
||||
key := struct {
|
||||
Pub []byte
|
||||
Priv []byte
|
||||
Comment string
|
||||
Pad []byte `ssh:"rest"`
|
||||
}{}
|
||||
|
||||
if err := Unmarshal(pk1.Rest, &key); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if len(key.Priv) != ed25519.PrivateKeySize {
|
||||
return nil, errors.New("ssh: private key unexpected length")
|
||||
}
|
||||
|
||||
pk := ed25519.PrivateKey(make([]byte, ed25519.PrivateKeySize))
|
||||
copy(pk, pk1.Priv)
|
||||
return &pk, nil
|
||||
for i, b := range key.Pad {
|
||||
if int(b) != i+1 {
|
||||
return nil, errors.New("ssh: padding not as expected")
|
||||
}
|
||||
}
|
||||
|
||||
pk := ed25519.PrivateKey(make([]byte, ed25519.PrivateKeySize))
|
||||
copy(pk, key.Priv)
|
||||
return &pk, nil
|
||||
default:
|
||||
return nil, errors.New("ssh: unhandled key type")
|
||||
}
|
||||
}
|
||||
|
||||
// FingerprintLegacyMD5 returns the user presentation of the key's
|
||||
// fingerprint as described by RFC 4716 section 4.
|
||||
func FingerprintLegacyMD5(pubKey PublicKey) string {
|
||||
md5sum := md5.Sum(pubKey.Marshal())
|
||||
hexarray := make([]string, len(md5sum))
|
||||
for i, c := range md5sum {
|
||||
hexarray[i] = hex.EncodeToString([]byte{c})
|
||||
}
|
||||
return strings.Join(hexarray, ":")
|
||||
}
|
||||
|
||||
// FingerprintSHA256 returns the user presentation of the key's
|
||||
// fingerprint as unpadded base64 encoded sha256 hash.
|
||||
// This format was introduced from OpenSSH 6.8.
|
||||
// https://www.openssh.com/txt/release-6.8
|
||||
// https://tools.ietf.org/html/rfc4648#section-3.2 (unpadded base64 encoding)
|
||||
func FingerprintSHA256(pubKey PublicKey) string {
|
||||
sha256sum := sha256.Sum256(pubKey.Marshal())
|
||||
hash := base64.RawStdEncoding.EncodeToString(sha256sum[:])
|
||||
return "SHA256:" + hash
|
||||
}
|
||||
|
|
10
vendor/golang.org/x/crypto/ssh/mac.go
generated
vendored
10
vendor/golang.org/x/crypto/ssh/mac.go
generated
vendored
|
@ -15,6 +15,7 @@ import (
|
|||
|
||||
type macMode struct {
|
||||
keySize int
|
||||
etm bool
|
||||
new func(key []byte) hash.Hash
|
||||
}
|
||||
|
||||
|
@ -45,13 +46,16 @@ func (t truncatingMAC) Size() int {
|
|||
func (t truncatingMAC) BlockSize() int { return t.hmac.BlockSize() }
|
||||
|
||||
var macModes = map[string]*macMode{
|
||||
"hmac-sha2-256": {32, func(key []byte) hash.Hash {
|
||||
"hmac-sha2-256-etm@openssh.com": {32, true, func(key []byte) hash.Hash {
|
||||
return hmac.New(sha256.New, key)
|
||||
}},
|
||||
"hmac-sha1": {20, func(key []byte) hash.Hash {
|
||||
"hmac-sha2-256": {32, false, func(key []byte) hash.Hash {
|
||||
return hmac.New(sha256.New, key)
|
||||
}},
|
||||
"hmac-sha1": {20, false, func(key []byte) hash.Hash {
|
||||
return hmac.New(sha1.New, key)
|
||||
}},
|
||||
"hmac-sha1-96": {20, func(key []byte) hash.Hash {
|
||||
"hmac-sha1-96": {20, false, func(key []byte) hash.Hash {
|
||||
return truncatingMAC{12, hmac.New(sha1.New, key)}
|
||||
}},
|
||||
}
|
||||
|
|
16
vendor/golang.org/x/crypto/ssh/messages.go
generated
vendored
16
vendor/golang.org/x/crypto/ssh/messages.go
generated
vendored
|
@ -23,10 +23,6 @@ const (
|
|||
msgUnimplemented = 3
|
||||
msgDebug = 4
|
||||
msgNewKeys = 21
|
||||
|
||||
// Standard authentication messages
|
||||
msgUserAuthSuccess = 52
|
||||
msgUserAuthBanner = 53
|
||||
)
|
||||
|
||||
// SSH messages:
|
||||
|
@ -137,6 +133,18 @@ type userAuthFailureMsg struct {
|
|||
PartialSuccess bool
|
||||
}
|
||||
|
||||
// See RFC 4252, section 5.1
|
||||
const msgUserAuthSuccess = 52
|
||||
|
||||
// See RFC 4252, section 5.4
|
||||
const msgUserAuthBanner = 53
|
||||
|
||||
type userAuthBannerMsg struct {
|
||||
Message string `sshtype:"53"`
|
||||
// unused, but required to allow message parsing
|
||||
Language string
|
||||
}
|
||||
|
||||
// See RFC 4256, section 3.2
|
||||
const msgUserAuthInfoRequest = 60
|
||||
const msgUserAuthInfoResponse = 61
|
||||
|
|
4
vendor/golang.org/x/crypto/ssh/mux.go
generated
vendored
4
vendor/golang.org/x/crypto/ssh/mux.go
generated
vendored
|
@ -116,9 +116,9 @@ func (m *mux) Wait() error {
|
|||
func newMux(p packetConn) *mux {
|
||||
m := &mux{
|
||||
conn: p,
|
||||
incomingChannels: make(chan NewChannel, 16),
|
||||
incomingChannels: make(chan NewChannel, chanSize),
|
||||
globalResponses: make(chan interface{}, 1),
|
||||
incomingRequests: make(chan *Request, 16),
|
||||
incomingRequests: make(chan *Request, chanSize),
|
||||
errCond: newCond(),
|
||||
}
|
||||
if debugMux {
|
||||
|
|
138
vendor/golang.org/x/crypto/ssh/server.go
generated
vendored
138
vendor/golang.org/x/crypto/ssh/server.go
generated
vendored
|
@ -10,26 +10,38 @@ import (
|
|||
"fmt"
|
||||
"io"
|
||||
"net"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// The Permissions type holds fine-grained permissions that are
|
||||
// specific to a user or a specific authentication method for a
|
||||
// user. Permissions, except for "source-address", must be enforced in
|
||||
// the server application layer, after successful authentication. The
|
||||
// Permissions are passed on in ServerConn so a server implementation
|
||||
// can honor them.
|
||||
// specific to a user or a specific authentication method for a user.
|
||||
// The Permissions value for a successful authentication attempt is
|
||||
// available in ServerConn, so it can be used to pass information from
|
||||
// the user-authentication phase to the application layer.
|
||||
type Permissions struct {
|
||||
// Critical options restrict default permissions. Common
|
||||
// restrictions are "source-address" and "force-command". If
|
||||
// the server cannot enforce the restriction, or does not
|
||||
// recognize it, the user should not authenticate.
|
||||
// CriticalOptions indicate restrictions to the default
|
||||
// permissions, and are typically used in conjunction with
|
||||
// user certificates. The standard for SSH certificates
|
||||
// defines "force-command" (only allow the given command to
|
||||
// execute) and "source-address" (only allow connections from
|
||||
// the given address). The SSH package currently only enforces
|
||||
// the "source-address" critical option. It is up to server
|
||||
// implementations to enforce other critical options, such as
|
||||
// "force-command", by checking them after the SSH handshake
|
||||
// is successful. In general, SSH servers should reject
|
||||
// connections that specify critical options that are unknown
|
||||
// or not supported.
|
||||
CriticalOptions map[string]string
|
||||
|
||||
// Extensions are extra functionality that the server may
|
||||
// offer on authenticated connections. Common extensions are
|
||||
// "permit-agent-forwarding", "permit-X11-forwarding". Lack of
|
||||
// support for an extension does not preclude authenticating a
|
||||
// user.
|
||||
// offer on authenticated connections. Lack of support for an
|
||||
// extension does not preclude authenticating a user. Common
|
||||
// extensions are "permit-agent-forwarding",
|
||||
// "permit-X11-forwarding". The Go SSH library currently does
|
||||
// not act on any extension, and it is up to server
|
||||
// implementations to honor them. Extensions can be used to
|
||||
// pass data from the authentication callbacks to the server
|
||||
// application layer.
|
||||
Extensions map[string]string
|
||||
}
|
||||
|
||||
|
@ -44,13 +56,24 @@ type ServerConfig struct {
|
|||
// authenticating.
|
||||
NoClientAuth bool
|
||||
|
||||
// MaxAuthTries specifies the maximum number of authentication attempts
|
||||
// permitted per connection. If set to a negative number, the number of
|
||||
// attempts are unlimited. If set to zero, the number of attempts are limited
|
||||
// to 6.
|
||||
MaxAuthTries int
|
||||
|
||||
// PasswordCallback, if non-nil, is called when a user
|
||||
// attempts to authenticate using a password.
|
||||
PasswordCallback func(conn ConnMetadata, password []byte) (*Permissions, error)
|
||||
|
||||
// PublicKeyCallback, if non-nil, is called when a client attempts public
|
||||
// key authentication. It must return true if the given public key is
|
||||
// valid for the given user. For example, see CertChecker.Authenticate.
|
||||
// PublicKeyCallback, if non-nil, is called when a client
|
||||
// offers a public key for authentication. It must return a nil error
|
||||
// if the given public key can be used to authenticate the
|
||||
// given user. For example, see CertChecker.Authenticate. A
|
||||
// call to this function does not guarantee that the key
|
||||
// offered is in fact used to authenticate. To record any data
|
||||
// depending on the public key, store it inside a
|
||||
// Permissions.Extensions entry.
|
||||
PublicKeyCallback func(conn ConnMetadata, key PublicKey) (*Permissions, error)
|
||||
|
||||
// KeyboardInteractiveCallback, if non-nil, is called when
|
||||
|
@ -72,6 +95,10 @@ type ServerConfig struct {
|
|||
// Note that RFC 4253 section 4.2 requires that this string start with
|
||||
// "SSH-2.0-".
|
||||
ServerVersion string
|
||||
|
||||
// BannerCallback, if present, is called and the return string is sent to
|
||||
// the client after key exchange completed but before authentication.
|
||||
BannerCallback func(conn ConnMetadata) string
|
||||
}
|
||||
|
||||
// AddHostKey adds a private key as a host key. If an existing host
|
||||
|
@ -142,6 +169,10 @@ type ServerConn struct {
|
|||
func NewServerConn(c net.Conn, config *ServerConfig) (*ServerConn, <-chan NewChannel, <-chan *Request, error) {
|
||||
fullConf := *config
|
||||
fullConf.SetDefaults()
|
||||
if fullConf.MaxAuthTries == 0 {
|
||||
fullConf.MaxAuthTries = 6
|
||||
}
|
||||
|
||||
s := &connection{
|
||||
sshConn: sshConn{conn: c},
|
||||
}
|
||||
|
@ -188,7 +219,7 @@ func (s *connection) serverHandshake(config *ServerConfig) (*Permissions, error)
|
|||
tr := newTransport(s.sshConn.conn, config.Rand, false /* not client */)
|
||||
s.transport = newServerTransport(tr, s.clientVersion, s.serverVersion, config)
|
||||
|
||||
if err := s.transport.requestInitialKeyChange(); err != nil {
|
||||
if err := s.transport.waitSession(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
|
@ -231,7 +262,7 @@ func isAcceptableAlgo(algo string) bool {
|
|||
return false
|
||||
}
|
||||
|
||||
func checkSourceAddress(addr net.Addr, sourceAddr string) error {
|
||||
func checkSourceAddress(addr net.Addr, sourceAddrs string) error {
|
||||
if addr == nil {
|
||||
return errors.New("ssh: no address known for client, but source-address match required")
|
||||
}
|
||||
|
@ -241,8 +272,9 @@ func checkSourceAddress(addr net.Addr, sourceAddr string) error {
|
|||
return fmt.Errorf("ssh: remote address %v is not an TCP address when checking source-address match", addr)
|
||||
}
|
||||
|
||||
for _, sourceAddr := range strings.Split(sourceAddrs, ",") {
|
||||
if allowedIP := net.ParseIP(sourceAddr); allowedIP != nil {
|
||||
if bytes.Equal(allowedIP, tcpAddr.IP) {
|
||||
if allowedIP.Equal(tcpAddr.IP) {
|
||||
return nil
|
||||
}
|
||||
} else {
|
||||
|
@ -255,19 +287,56 @@ func checkSourceAddress(addr net.Addr, sourceAddr string) error {
|
|||
return nil
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return fmt.Errorf("ssh: remote address %v is not allowed because of source-address restriction", addr)
|
||||
}
|
||||
|
||||
// ServerAuthError implements the error interface. It appends any authentication
|
||||
// errors that may occur, and is returned if all of the authentication methods
|
||||
// provided by the user failed to authenticate.
|
||||
type ServerAuthError struct {
|
||||
// Errors contains authentication errors returned by the authentication
|
||||
// callback methods.
|
||||
Errors []error
|
||||
}
|
||||
|
||||
func (l ServerAuthError) Error() string {
|
||||
var errs []string
|
||||
for _, err := range l.Errors {
|
||||
errs = append(errs, err.Error())
|
||||
}
|
||||
return "[" + strings.Join(errs, ", ") + "]"
|
||||
}
|
||||
|
||||
func (s *connection) serverAuthenticate(config *ServerConfig) (*Permissions, error) {
|
||||
var err error
|
||||
sessionID := s.transport.getSessionID()
|
||||
var cache pubKeyCache
|
||||
var perms *Permissions
|
||||
|
||||
authFailures := 0
|
||||
var authErrs []error
|
||||
|
||||
userAuthLoop:
|
||||
for {
|
||||
if authFailures >= config.MaxAuthTries && config.MaxAuthTries > 0 {
|
||||
discMsg := &disconnectMsg{
|
||||
Reason: 2,
|
||||
Message: "too many authentication failures",
|
||||
}
|
||||
|
||||
if err := s.transport.writePacket(Marshal(discMsg)); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return nil, discMsg
|
||||
}
|
||||
|
||||
var userAuthReq userAuthRequestMsg
|
||||
if packet, err := s.transport.readPacket(); err != nil {
|
||||
if err == io.EOF {
|
||||
return nil, &ServerAuthError{Errors: authErrs}
|
||||
}
|
||||
return nil, err
|
||||
} else if err = Unmarshal(packet, &userAuthReq); err != nil {
|
||||
return nil, err
|
||||
|
@ -278,6 +347,19 @@ userAuthLoop:
|
|||
}
|
||||
|
||||
s.user = userAuthReq.User
|
||||
|
||||
if authFailures == 0 && config.BannerCallback != nil {
|
||||
msg := config.BannerCallback(s)
|
||||
if msg != "" {
|
||||
bannerMsg := &userAuthBannerMsg{
|
||||
Message: msg,
|
||||
}
|
||||
if err := s.transport.writePacket(Marshal(bannerMsg)); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
perms = nil
|
||||
authErr := errors.New("no auth passed yet")
|
||||
|
||||
|
@ -286,6 +368,11 @@ userAuthLoop:
|
|||
if config.NoClientAuth {
|
||||
authErr = nil
|
||||
}
|
||||
|
||||
// allow initial attempt of 'none' without penalty
|
||||
if authFailures == 0 {
|
||||
authFailures--
|
||||
}
|
||||
case "password":
|
||||
if config.PasswordCallback == nil {
|
||||
authErr = errors.New("ssh: password auth not configured")
|
||||
|
@ -357,6 +444,7 @@ userAuthLoop:
|
|||
if isQuery {
|
||||
// The client can query if the given public key
|
||||
// would be okay.
|
||||
|
||||
if len(payload) > 0 {
|
||||
return nil, parseError(msgUserAuthRequest)
|
||||
}
|
||||
|
@ -385,7 +473,7 @@ userAuthLoop:
|
|||
if !isAcceptableAlgo(sig.Format) {
|
||||
break
|
||||
}
|
||||
signedData := buildDataSignedForAuth(s.transport.getSessionID(), userAuthReq, algoBytes, pubKeyData)
|
||||
signedData := buildDataSignedForAuth(sessionID, userAuthReq, algoBytes, pubKeyData)
|
||||
|
||||
if err := pubKey.Verify(signedData, sig); err != nil {
|
||||
return nil, err
|
||||
|
@ -398,6 +486,8 @@ userAuthLoop:
|
|||
authErr = fmt.Errorf("ssh: unknown method %q", userAuthReq.Method)
|
||||
}
|
||||
|
||||
authErrs = append(authErrs, authErr)
|
||||
|
||||
if config.AuthLogCallback != nil {
|
||||
config.AuthLogCallback(s, userAuthReq.Method, authErr)
|
||||
}
|
||||
|
@ -406,6 +496,8 @@ userAuthLoop:
|
|||
break userAuthLoop
|
||||
}
|
||||
|
||||
authFailures++
|
||||
|
||||
var failureMsg userAuthFailureMsg
|
||||
if config.PasswordCallback != nil {
|
||||
failureMsg.Methods = append(failureMsg.Methods, "password")
|
||||
|
@ -421,12 +513,12 @@ userAuthLoop:
|
|||
return nil, errors.New("ssh: no authentication methods configured but NoClientAuth is also false")
|
||||
}
|
||||
|
||||
if err = s.transport.writePacket(Marshal(&failureMsg)); err != nil {
|
||||
if err := s.transport.writePacket(Marshal(&failureMsg)); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
if err = s.transport.writePacket([]byte{msgUserAuthSuccess}); err != nil {
|
||||
if err := s.transport.writePacket([]byte{msgUserAuthSuccess}); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return perms, nil
|
||||
|
|
20
vendor/golang.org/x/crypto/ssh/session.go
generated
vendored
20
vendor/golang.org/x/crypto/ssh/session.go
generated
vendored
|
@ -231,6 +231,26 @@ func (s *Session) RequestSubsystem(subsystem string) error {
|
|||
return err
|
||||
}
|
||||
|
||||
// RFC 4254 Section 6.7.
|
||||
type ptyWindowChangeMsg struct {
|
||||
Columns uint32
|
||||
Rows uint32
|
||||
Width uint32
|
||||
Height uint32
|
||||
}
|
||||
|
||||
// WindowChange informs the remote host about a terminal window dimension change to h rows and w columns.
|
||||
func (s *Session) WindowChange(h, w int) error {
|
||||
req := ptyWindowChangeMsg{
|
||||
Columns: uint32(w),
|
||||
Rows: uint32(h),
|
||||
Width: uint32(w * 8),
|
||||
Height: uint32(h * 8),
|
||||
}
|
||||
_, err := s.ch.SendRequest("window-change", false, Marshal(&req))
|
||||
return err
|
||||
}
|
||||
|
||||
// RFC 4254 Section 6.9.
|
||||
type signalMsg struct {
|
||||
Signal string
|
||||
|
|
115
vendor/golang.org/x/crypto/ssh/streamlocal.go
generated
vendored
Normal file
115
vendor/golang.org/x/crypto/ssh/streamlocal.go
generated
vendored
Normal file
|
@ -0,0 +1,115 @@
|
|||
package ssh
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"io"
|
||||
"net"
|
||||
)
|
||||
|
||||
// streamLocalChannelOpenDirectMsg is a struct used for SSH_MSG_CHANNEL_OPEN message
|
||||
// with "direct-streamlocal@openssh.com" string.
|
||||
//
|
||||
// See openssh-portable/PROTOCOL, section 2.4. connection: Unix domain socket forwarding
|
||||
// https://github.com/openssh/openssh-portable/blob/master/PROTOCOL#L235
|
||||
type streamLocalChannelOpenDirectMsg struct {
|
||||
socketPath string
|
||||
reserved0 string
|
||||
reserved1 uint32
|
||||
}
|
||||
|
||||
// forwardedStreamLocalPayload is a struct used for SSH_MSG_CHANNEL_OPEN message
|
||||
// with "forwarded-streamlocal@openssh.com" string.
|
||||
type forwardedStreamLocalPayload struct {
|
||||
SocketPath string
|
||||
Reserved0 string
|
||||
}
|
||||
|
||||
// streamLocalChannelForwardMsg is a struct used for SSH2_MSG_GLOBAL_REQUEST message
|
||||
// with "streamlocal-forward@openssh.com"/"cancel-streamlocal-forward@openssh.com" string.
|
||||
type streamLocalChannelForwardMsg struct {
|
||||
socketPath string
|
||||
}
|
||||
|
||||
// ListenUnix is similar to ListenTCP but uses a Unix domain socket.
|
||||
func (c *Client) ListenUnix(socketPath string) (net.Listener, error) {
|
||||
m := streamLocalChannelForwardMsg{
|
||||
socketPath,
|
||||
}
|
||||
// send message
|
||||
ok, _, err := c.SendRequest("streamlocal-forward@openssh.com", true, Marshal(&m))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if !ok {
|
||||
return nil, errors.New("ssh: streamlocal-forward@openssh.com request denied by peer")
|
||||
}
|
||||
ch := c.forwards.add(&net.UnixAddr{Name: socketPath, Net: "unix"})
|
||||
|
||||
return &unixListener{socketPath, c, ch}, nil
|
||||
}
|
||||
|
||||
func (c *Client) dialStreamLocal(socketPath string) (Channel, error) {
|
||||
msg := streamLocalChannelOpenDirectMsg{
|
||||
socketPath: socketPath,
|
||||
}
|
||||
ch, in, err := c.OpenChannel("direct-streamlocal@openssh.com", Marshal(&msg))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
go DiscardRequests(in)
|
||||
return ch, err
|
||||
}
|
||||
|
||||
type unixListener struct {
|
||||
socketPath string
|
||||
|
||||
conn *Client
|
||||
in <-chan forward
|
||||
}
|
||||
|
||||
// Accept waits for and returns the next connection to the listener.
|
||||
func (l *unixListener) Accept() (net.Conn, error) {
|
||||
s, ok := <-l.in
|
||||
if !ok {
|
||||
return nil, io.EOF
|
||||
}
|
||||
ch, incoming, err := s.newCh.Accept()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
go DiscardRequests(incoming)
|
||||
|
||||
return &chanConn{
|
||||
Channel: ch,
|
||||
laddr: &net.UnixAddr{
|
||||
Name: l.socketPath,
|
||||
Net: "unix",
|
||||
},
|
||||
raddr: &net.UnixAddr{
|
||||
Name: "@",
|
||||
Net: "unix",
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Close closes the listener.
|
||||
func (l *unixListener) Close() error {
|
||||
// this also closes the listener.
|
||||
l.conn.forwards.remove(&net.UnixAddr{Name: l.socketPath, Net: "unix"})
|
||||
m := streamLocalChannelForwardMsg{
|
||||
l.socketPath,
|
||||
}
|
||||
ok, _, err := l.conn.SendRequest("cancel-streamlocal-forward@openssh.com", true, Marshal(&m))
|
||||
if err == nil && !ok {
|
||||
err = errors.New("ssh: cancel-streamlocal-forward@openssh.com failed")
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// Addr returns the listener's network address.
|
||||
func (l *unixListener) Addr() net.Addr {
|
||||
return &net.UnixAddr{
|
||||
Name: l.socketPath,
|
||||
Net: "unix",
|
||||
}
|
||||
}
|
118
vendor/golang.org/x/crypto/ssh/tcpip.go
generated
vendored
118
vendor/golang.org/x/crypto/ssh/tcpip.go
generated
vendored
|
@ -20,12 +20,20 @@ import (
|
|||
// addr. Incoming connections will be available by calling Accept on
|
||||
// the returned net.Listener. The listener must be serviced, or the
|
||||
// SSH connection may hang.
|
||||
// N must be "tcp", "tcp4", "tcp6", or "unix".
|
||||
func (c *Client) Listen(n, addr string) (net.Listener, error) {
|
||||
switch n {
|
||||
case "tcp", "tcp4", "tcp6":
|
||||
laddr, err := net.ResolveTCPAddr(n, addr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return c.ListenTCP(laddr)
|
||||
case "unix":
|
||||
return c.ListenUnix(addr)
|
||||
default:
|
||||
return nil, fmt.Errorf("ssh: unsupported protocol: %s", n)
|
||||
}
|
||||
}
|
||||
|
||||
// Automatic port allocation is broken with OpenSSH before 6.0. See
|
||||
|
@ -116,7 +124,7 @@ func (c *Client) ListenTCP(laddr *net.TCPAddr) (net.Listener, error) {
|
|||
}
|
||||
|
||||
// Register this forward, using the port number we obtained.
|
||||
ch := c.forwards.add(*laddr)
|
||||
ch := c.forwards.add(laddr)
|
||||
|
||||
return &tcpListener{laddr, c, ch}, nil
|
||||
}
|
||||
|
@ -131,7 +139,7 @@ type forwardList struct {
|
|||
// forwardEntry represents an established mapping of a laddr on a
|
||||
// remote ssh server to a channel connected to a tcpListener.
|
||||
type forwardEntry struct {
|
||||
laddr net.TCPAddr
|
||||
laddr net.Addr
|
||||
c chan forward
|
||||
}
|
||||
|
||||
|
@ -140,15 +148,15 @@ type forwardEntry struct {
|
|||
// the original forward-request.
|
||||
type forward struct {
|
||||
newCh NewChannel // the ssh client channel underlying this forward
|
||||
raddr *net.TCPAddr // the raddr of the incoming connection
|
||||
raddr net.Addr // the raddr of the incoming connection
|
||||
}
|
||||
|
||||
func (l *forwardList) add(addr net.TCPAddr) chan forward {
|
||||
func (l *forwardList) add(addr net.Addr) chan forward {
|
||||
l.Lock()
|
||||
defer l.Unlock()
|
||||
f := forwardEntry{
|
||||
addr,
|
||||
make(chan forward, 1),
|
||||
laddr: addr,
|
||||
c: make(chan forward, 1),
|
||||
}
|
||||
l.entries = append(l.entries, f)
|
||||
return f.c
|
||||
|
@ -176,8 +184,15 @@ func parseTCPAddr(addr string, port uint32) (*net.TCPAddr, error) {
|
|||
|
||||
func (l *forwardList) handleChannels(in <-chan NewChannel) {
|
||||
for ch := range in {
|
||||
var (
|
||||
laddr net.Addr
|
||||
raddr net.Addr
|
||||
err error
|
||||
)
|
||||
switch channelType := ch.ChannelType(); channelType {
|
||||
case "forwarded-tcpip":
|
||||
var payload forwardedTCPPayload
|
||||
if err := Unmarshal(ch.ExtraData(), &payload); err != nil {
|
||||
if err = Unmarshal(ch.ExtraData(), &payload); err != nil {
|
||||
ch.Reject(ConnectionFailed, "could not parse forwarded-tcpip payload: "+err.Error())
|
||||
continue
|
||||
}
|
||||
|
@ -187,33 +202,51 @@ func (l *forwardList) handleChannels(in <-chan NewChannel) {
|
|||
// format. It is implied that this should be an IP
|
||||
// address, as it would be impossible to connect to it
|
||||
// otherwise.
|
||||
laddr, err := parseTCPAddr(payload.Addr, payload.Port)
|
||||
laddr, err = parseTCPAddr(payload.Addr, payload.Port)
|
||||
if err != nil {
|
||||
ch.Reject(ConnectionFailed, err.Error())
|
||||
continue
|
||||
}
|
||||
raddr, err := parseTCPAddr(payload.OriginAddr, payload.OriginPort)
|
||||
raddr, err = parseTCPAddr(payload.OriginAddr, payload.OriginPort)
|
||||
if err != nil {
|
||||
ch.Reject(ConnectionFailed, err.Error())
|
||||
continue
|
||||
}
|
||||
|
||||
if ok := l.forward(*laddr, *raddr, ch); !ok {
|
||||
case "forwarded-streamlocal@openssh.com":
|
||||
var payload forwardedStreamLocalPayload
|
||||
if err = Unmarshal(ch.ExtraData(), &payload); err != nil {
|
||||
ch.Reject(ConnectionFailed, "could not parse forwarded-streamlocal@openssh.com payload: "+err.Error())
|
||||
continue
|
||||
}
|
||||
laddr = &net.UnixAddr{
|
||||
Name: payload.SocketPath,
|
||||
Net: "unix",
|
||||
}
|
||||
raddr = &net.UnixAddr{
|
||||
Name: "@",
|
||||
Net: "unix",
|
||||
}
|
||||
default:
|
||||
panic(fmt.Errorf("ssh: unknown channel type %s", channelType))
|
||||
}
|
||||
if ok := l.forward(laddr, raddr, ch); !ok {
|
||||
// Section 7.2, implementations MUST reject spurious incoming
|
||||
// connections.
|
||||
ch.Reject(Prohibited, "no forward for address")
|
||||
continue
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
// remove removes the forward entry, and the channel feeding its
|
||||
// listener.
|
||||
func (l *forwardList) remove(addr net.TCPAddr) {
|
||||
func (l *forwardList) remove(addr net.Addr) {
|
||||
l.Lock()
|
||||
defer l.Unlock()
|
||||
for i, f := range l.entries {
|
||||
if addr.IP.Equal(f.laddr.IP) && addr.Port == f.laddr.Port {
|
||||
if addr.Network() == f.laddr.Network() && addr.String() == f.laddr.String() {
|
||||
l.entries = append(l.entries[:i], l.entries[i+1:]...)
|
||||
close(f.c)
|
||||
return
|
||||
|
@ -231,12 +264,12 @@ func (l *forwardList) closeAll() {
|
|||
l.entries = nil
|
||||
}
|
||||
|
||||
func (l *forwardList) forward(laddr, raddr net.TCPAddr, ch NewChannel) bool {
|
||||
func (l *forwardList) forward(laddr, raddr net.Addr, ch NewChannel) bool {
|
||||
l.Lock()
|
||||
defer l.Unlock()
|
||||
for _, f := range l.entries {
|
||||
if laddr.IP.Equal(f.laddr.IP) && laddr.Port == f.laddr.Port {
|
||||
f.c <- forward{ch, &raddr}
|
||||
if laddr.Network() == f.laddr.Network() && laddr.String() == f.laddr.String() {
|
||||
f.c <- forward{newCh: ch, raddr: raddr}
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
@ -262,7 +295,7 @@ func (l *tcpListener) Accept() (net.Conn, error) {
|
|||
}
|
||||
go DiscardRequests(incoming)
|
||||
|
||||
return &tcpChanConn{
|
||||
return &chanConn{
|
||||
Channel: ch,
|
||||
laddr: l.laddr,
|
||||
raddr: s.raddr,
|
||||
|
@ -277,7 +310,7 @@ func (l *tcpListener) Close() error {
|
|||
}
|
||||
|
||||
// this also closes the listener.
|
||||
l.conn.forwards.remove(*l.laddr)
|
||||
l.conn.forwards.remove(l.laddr)
|
||||
ok, _, err := l.conn.SendRequest("cancel-tcpip-forward", true, Marshal(&m))
|
||||
if err == nil && !ok {
|
||||
err = errors.New("ssh: cancel-tcpip-forward failed")
|
||||
|
@ -293,6 +326,9 @@ func (l *tcpListener) Addr() net.Addr {
|
|||
// Dial initiates a connection to the addr from the remote host.
|
||||
// The resulting connection has a zero LocalAddr() and RemoteAddr().
|
||||
func (c *Client) Dial(n, addr string) (net.Conn, error) {
|
||||
var ch Channel
|
||||
switch n {
|
||||
case "tcp", "tcp4", "tcp6":
|
||||
// Parse the address into host and numeric port.
|
||||
host, portString, err := net.SplitHostPort(addr)
|
||||
if err != nil {
|
||||
|
@ -302,20 +338,40 @@ func (c *Client) Dial(n, addr string) (net.Conn, error) {
|
|||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
ch, err = c.dial(net.IPv4zero.String(), 0, host, int(port))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// Use a zero address for local and remote address.
|
||||
zeroAddr := &net.TCPAddr{
|
||||
IP: net.IPv4zero,
|
||||
Port: 0,
|
||||
}
|
||||
ch, err := c.dial(net.IPv4zero.String(), 0, host, int(port))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &tcpChanConn{
|
||||
return &chanConn{
|
||||
Channel: ch,
|
||||
laddr: zeroAddr,
|
||||
raddr: zeroAddr,
|
||||
}, nil
|
||||
case "unix":
|
||||
var err error
|
||||
ch, err = c.dialStreamLocal(addr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &chanConn{
|
||||
Channel: ch,
|
||||
laddr: &net.UnixAddr{
|
||||
Name: "@",
|
||||
Net: "unix",
|
||||
},
|
||||
raddr: &net.UnixAddr{
|
||||
Name: addr,
|
||||
Net: "unix",
|
||||
},
|
||||
}, nil
|
||||
default:
|
||||
return nil, fmt.Errorf("ssh: unsupported protocol: %s", n)
|
||||
}
|
||||
}
|
||||
|
||||
// DialTCP connects to the remote address raddr on the network net,
|
||||
|
@ -332,7 +388,7 @@ func (c *Client) DialTCP(n string, laddr, raddr *net.TCPAddr) (net.Conn, error)
|
|||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &tcpChanConn{
|
||||
return &chanConn{
|
||||
Channel: ch,
|
||||
laddr: laddr,
|
||||
raddr: raddr,
|
||||
|
@ -366,26 +422,26 @@ type tcpChan struct {
|
|||
Channel // the backing channel
|
||||
}
|
||||
|
||||
// tcpChanConn fulfills the net.Conn interface without
|
||||
// chanConn fulfills the net.Conn interface without
|
||||
// the tcpChan having to hold laddr or raddr directly.
|
||||
type tcpChanConn struct {
|
||||
type chanConn struct {
|
||||
Channel
|
||||
laddr, raddr net.Addr
|
||||
}
|
||||
|
||||
// LocalAddr returns the local network address.
|
||||
func (t *tcpChanConn) LocalAddr() net.Addr {
|
||||
func (t *chanConn) LocalAddr() net.Addr {
|
||||
return t.laddr
|
||||
}
|
||||
|
||||
// RemoteAddr returns the remote network address.
|
||||
func (t *tcpChanConn) RemoteAddr() net.Addr {
|
||||
func (t *chanConn) RemoteAddr() net.Addr {
|
||||
return t.raddr
|
||||
}
|
||||
|
||||
// SetDeadline sets the read and write deadlines associated
|
||||
// with the connection.
|
||||
func (t *tcpChanConn) SetDeadline(deadline time.Time) error {
|
||||
func (t *chanConn) SetDeadline(deadline time.Time) error {
|
||||
if err := t.SetReadDeadline(deadline); err != nil {
|
||||
return err
|
||||
}
|
||||
|
@ -396,12 +452,14 @@ func (t *tcpChanConn) SetDeadline(deadline time.Time) error {
|
|||
// A zero value for t means Read will not time out.
|
||||
// After the deadline, the error from Read will implement net.Error
|
||||
// with Timeout() == true.
|
||||
func (t *tcpChanConn) SetReadDeadline(deadline time.Time) error {
|
||||
func (t *chanConn) SetReadDeadline(deadline time.Time) error {
|
||||
// for compatibility with previous version,
|
||||
// the error message contains "tcpChan"
|
||||
return errors.New("ssh: tcpChan: deadline not supported")
|
||||
}
|
||||
|
||||
// SetWriteDeadline exists to satisfy the net.Conn interface
|
||||
// but is not implemented by this type. It always returns an error.
|
||||
func (t *tcpChanConn) SetWriteDeadline(deadline time.Time) error {
|
||||
func (t *chanConn) SetWriteDeadline(deadline time.Time) error {
|
||||
return errors.New("ssh: tcpChan: deadline not supported")
|
||||
}
|
||||
|
|
52
vendor/golang.org/x/crypto/ssh/transport.go
generated
vendored
52
vendor/golang.org/x/crypto/ssh/transport.go
generated
vendored
|
@ -8,8 +8,13 @@ import (
|
|||
"bufio"
|
||||
"errors"
|
||||
"io"
|
||||
"log"
|
||||
)
|
||||
|
||||
// debugTransport if set, will print packet types as they go over the
|
||||
// wire. No message decoding is done, to minimize the impact on timing.
|
||||
const debugTransport = false
|
||||
|
||||
const (
|
||||
gcmCipherID = "aes128-gcm@openssh.com"
|
||||
aes128cbcID = "aes128-cbc"
|
||||
|
@ -22,7 +27,9 @@ type packetConn interface {
|
|||
// Encrypt and send a packet of data to the remote peer.
|
||||
writePacket(packet []byte) error
|
||||
|
||||
// Read a packet from the connection
|
||||
// Read a packet from the connection. The read is blocking,
|
||||
// i.e. if error is nil, then the returned byte slice is
|
||||
// always non-empty.
|
||||
readPacket() ([]byte, error)
|
||||
|
||||
// Close closes the write-side of the connection.
|
||||
|
@ -38,7 +45,7 @@ type transport struct {
|
|||
bufReader *bufio.Reader
|
||||
bufWriter *bufio.Writer
|
||||
rand io.Reader
|
||||
|
||||
isClient bool
|
||||
io.Closer
|
||||
}
|
||||
|
||||
|
@ -84,9 +91,38 @@ func (t *transport) prepareKeyChange(algs *algorithms, kexResult *kexResult) err
|
|||
return nil
|
||||
}
|
||||
|
||||
func (t *transport) printPacket(p []byte, write bool) {
|
||||
if len(p) == 0 {
|
||||
return
|
||||
}
|
||||
who := "server"
|
||||
if t.isClient {
|
||||
who = "client"
|
||||
}
|
||||
what := "read"
|
||||
if write {
|
||||
what = "write"
|
||||
}
|
||||
|
||||
log.Println(what, who, p[0])
|
||||
}
|
||||
|
||||
// Read and decrypt next packet.
|
||||
func (t *transport) readPacket() ([]byte, error) {
|
||||
return t.reader.readPacket(t.bufReader)
|
||||
func (t *transport) readPacket() (p []byte, err error) {
|
||||
for {
|
||||
p, err = t.reader.readPacket(t.bufReader)
|
||||
if err != nil {
|
||||
break
|
||||
}
|
||||
if len(p) == 0 || (p[0] != msgIgnore && p[0] != msgDebug) {
|
||||
break
|
||||
}
|
||||
}
|
||||
if debugTransport {
|
||||
t.printPacket(p, false)
|
||||
}
|
||||
|
||||
return p, err
|
||||
}
|
||||
|
||||
func (s *connectionState) readPacket(r *bufio.Reader) ([]byte, error) {
|
||||
|
@ -129,6 +165,9 @@ func (s *connectionState) readPacket(r *bufio.Reader) ([]byte, error) {
|
|||
}
|
||||
|
||||
func (t *transport) writePacket(packet []byte) error {
|
||||
if debugTransport {
|
||||
t.printPacket(packet, true)
|
||||
}
|
||||
return t.writer.writePacket(t.bufWriter, t.rand, packet)
|
||||
}
|
||||
|
||||
|
@ -169,6 +208,8 @@ func newTransport(rwc io.ReadWriteCloser, rand io.Reader, isClient bool) *transp
|
|||
},
|
||||
Closer: rwc,
|
||||
}
|
||||
t.isClient = isClient
|
||||
|
||||
if isClient {
|
||||
t.reader.dir = serverKeys
|
||||
t.writer.dir = clientKeys
|
||||
|
@ -213,7 +254,7 @@ func newPacketCipher(d direction, algs directionAlgorithms, kex *kexResult) (pac
|
|||
iv, key, macKey := generateKeys(d, algs, kex)
|
||||
|
||||
if algs.Cipher == gcmCipherID {
|
||||
return newGCMCipher(iv, key, macKey)
|
||||
return newGCMCipher(iv, key)
|
||||
}
|
||||
|
||||
if algs.Cipher == aes128cbcID {
|
||||
|
@ -226,6 +267,7 @@ func newPacketCipher(d direction, algs directionAlgorithms, kex *kexResult) (pac
|
|||
|
||||
c := &streamPacketCipher{
|
||||
mac: macModes[algs.MAC].new(macKey),
|
||||
etm: macModes[algs.MAC].etm,
|
||||
}
|
||||
c.macResult = make([]byte, c.mac.Size())
|
||||
|
||||
|
|
30
vendor/vendor.json
vendored
30
vendor/vendor.json
vendored
|
@ -1279,40 +1279,40 @@
|
|||
"revisionTime": "2016-09-14T08:04:27Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "dwOedwBJ1EIK9+S3t108Bx054Y8=",
|
||||
"checksumSHA1": "sFH/xPPl/UZgLj+ypPNPlT+2Sx0=",
|
||||
"path": "golang.org/x/crypto/curve25519",
|
||||
"revision": "9477e0b78b9ac3d0b03822fd95422e2fe07627cd",
|
||||
"revisionTime": "2016-10-31T15:37:30Z"
|
||||
"revision": "9f005a07e0d31d45e6656d241bb5c0f2efd4bc94",
|
||||
"revisionTime": "2017-09-21T17:41:56Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "wGb//LjBPNxYHqk+dcLo7BjPXK8=",
|
||||
"checksumSHA1": "1hwn8cgg4EVXhCpJIqmMbzqnUo0=",
|
||||
"path": "golang.org/x/crypto/ed25519",
|
||||
"revision": "9477e0b78b9ac3d0b03822fd95422e2fe07627cd",
|
||||
"revisionTime": "2016-10-31T15:37:30Z"
|
||||
"revision": "9f005a07e0d31d45e6656d241bb5c0f2efd4bc94",
|
||||
"revisionTime": "2017-09-21T17:41:56Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "LXFcVx8I587SnWmKycSDEq9yvK8=",
|
||||
"path": "golang.org/x/crypto/ed25519/internal/edwards25519",
|
||||
"revision": "9477e0b78b9ac3d0b03822fd95422e2fe07627cd",
|
||||
"revisionTime": "2016-10-31T15:37:30Z"
|
||||
"revision": "9f005a07e0d31d45e6656d241bb5c0f2efd4bc94",
|
||||
"revisionTime": "2017-09-21T17:41:56Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "MCeXr2RNeiG1XG6V+er1OR0qyeo=",
|
||||
"path": "golang.org/x/crypto/md4",
|
||||
"revision": "ede567c8e044a5913dad1d1af3696d9da953104c",
|
||||
"revisionTime": "2016-11-04T19:41:44Z"
|
||||
"revision": "9f005a07e0d31d45e6656d241bb5c0f2efd4bc94",
|
||||
"revisionTime": "2017-09-21T17:41:56Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "1MGpGDQqnUoRpv7VEcQrXOBydXE=",
|
||||
"path": "golang.org/x/crypto/pbkdf2",
|
||||
"revision": "8e06e8ddd9629eb88639aba897641bff8031f1d3",
|
||||
"revisionTime": "2016-09-10T18:59:01Z"
|
||||
"revision": "9f005a07e0d31d45e6656d241bb5c0f2efd4bc94",
|
||||
"revisionTime": "2017-09-21T17:41:56Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "LlElMHeTC34ng8eHzjvtUhAgrr8=",
|
||||
"checksumSHA1": "YXeyyvak2xbvsqj5MBHMzyG+22M=",
|
||||
"path": "golang.org/x/crypto/ssh",
|
||||
"revision": "9477e0b78b9ac3d0b03822fd95422e2fe07627cd",
|
||||
"revisionTime": "2016-10-31T15:37:30Z"
|
||||
"revision": "9f005a07e0d31d45e6656d241bb5c0f2efd4bc94",
|
||||
"revisionTime": "2017-09-21T17:41:56Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "9jjO5GjLa0XF/nfWihF02RoH4qc=",
|
||||
|
|
Loading…
Reference in a new issue