From e72d34ef2c87e5c9ffd49c98b651641f48d89c24 Mon Sep 17 00:00:00 2001
From: Christian Stewart <christian@paral.in>
Date: Sat, 25 Jun 2022 14:57:38 -0700
Subject: [PATCH] go.mod: fix jacobsa/crypto build on riscv64

Replace dependency jacobsa/crypto with a fork with support for riscv64.

Issue: https://github.com/rfjakob/gocryptfs/issues/666

Upstream PR: https://github.com/jacobsa/crypto/issues/13

Signed-off-by: Christian Stewart <christian@paral.in>
---
 go.mod                                        | 15 ++++---
 go.sum                                        | 16 +++-----
 .../jacobsa/crypto/cmac/hash_generic.go       | 40 +++++++++++++++++++
 vendor/modules.txt                            | 16 ++------
 4 files changed, 59 insertions(+), 28 deletions(-)
 create mode 100644 vendor/github.com/jacobsa/crypto/cmac/hash_generic.go

diff --git a/go.mod b/go.mod
index 754a667..5103029 100644
--- a/go.mod
+++ b/go.mod
@@ -2,19 +2,22 @@ module github.com/rfjakob/gocryptfs/v2
 
 go 1.16
 
+// Fixes build against risc-v
+// See: https://github.com/jacobsa/crypto/issues/13
+replace github.com/jacobsa/crypto => github.com/aperturerobotics/jacobsa-crypto v1.0.2-0.20221208222437-85e082e29e93 // buildroot-1
+
+// Prevent x/sys version from changing and polluting vendor/
+// Pin it to the current version in the original go.mod.
+replace golang.org/x/sys => golang.org/x/sys v0.0.0-20210817190340-bfb29a6856f2
+
 require (
 	github.com/hanwen/go-fuse/v2 v2.1.1-0.20211219085202-934a183ed914
 	github.com/jacobsa/crypto v0.0.0-20190317225127-9f44e2d11115
-	github.com/jacobsa/oglematchers v0.0.0-20150720000706-141901ea67cd // indirect
-	github.com/jacobsa/oglemock v0.0.0-20150831005832-e94d794d06ff // indirect
-	github.com/jacobsa/ogletest v0.0.0-20170503003838-80d50a735a11 // indirect
-	github.com/jacobsa/reqtrace v0.0.0-20150505043853-245c9e0234cb // indirect
 	github.com/pkg/xattr v0.4.3
 	github.com/rfjakob/eme v1.1.2
 	github.com/sabhiram/go-gitignore v0.0.0-20201211210132-54b8a0bf510f
 	github.com/spf13/pflag v1.0.5
 	golang.org/x/crypto v0.0.0-20210817164053-32db794688a5
-	golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d // indirect
-	golang.org/x/sys v0.0.0-20210817190340-bfb29a6856f2
+	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a
 	golang.org/x/term v0.0.0-20220722155259-a9ba230a4035
 )
diff --git a/go.sum b/go.sum
index 4167388..71826e9 100644
--- a/go.sum
+++ b/go.sum
@@ -1,9 +1,9 @@
+github.com/aperturerobotics/jacobsa-crypto v1.0.2-0.20221208222437-85e082e29e93 h1:awSzmXfGWzvmRmrU1oSHqUdpxNcVPRMqv0rytbSA8kA=
+github.com/aperturerobotics/jacobsa-crypto v1.0.2-0.20221208222437-85e082e29e93/go.mod h1:SHG0nzlQikn4UxNIXqEKd2hvJM2tRIrdr1FfOrF+/wY=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/hanwen/go-fuse/v2 v2.1.1-0.20211219085202-934a183ed914 h1:hGXMxS1wTE4y+f7iBqFArrJ6X8QozHnEdnVzGZI9Ywc=
 github.com/hanwen/go-fuse/v2 v2.1.1-0.20211219085202-934a183ed914/go.mod h1:B1nGE/6RBFyBRC1RRnf23UpwCdyJ31eukw34oAKukAc=
-github.com/jacobsa/crypto v0.0.0-20190317225127-9f44e2d11115 h1:YuDUUFNM21CAbyPOpOP8BicaTD/0klJEKt5p8yuw+uY=
-github.com/jacobsa/crypto v0.0.0-20190317225127-9f44e2d11115/go.mod h1:LadVJg0XuawGk+8L1rYnIED8451UyNxEMdTWCEt5kmU=
 github.com/jacobsa/oglematchers v0.0.0-20150720000706-141901ea67cd h1:9GCSedGjMcLZCrusBZuo4tyKLpKUPenUUqi34AkuFmA=
 github.com/jacobsa/oglematchers v0.0.0-20150720000706-141901ea67cd/go.mod h1:TlmyIZDpGmwRoTWiakdr+HA1Tukze6C6XbRVidYq02M=
 github.com/jacobsa/oglemock v0.0.0-20150831005832-e94d794d06ff h1:2xRHTvkpJ5zJmglXLRqHiZQNjUoOkhUyhTAhEQvPAWw=
@@ -30,21 +30,17 @@ github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 golang.org/x/crypto v0.0.0-20210817164053-32db794688a5 h1:HWj/xjIHfjYU5nVXpTM0s39J9CbLn7Cc5a7IC5rwsMQ=
 golang.org/x/crypto v0.0.0-20210817164053-32db794688a5/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d h1:LO7XpTYMwTqxjLcGWPijK3vRXg1aWdlNOVOHRq45d7c=
-golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.0.0-20220708220712-1185a9018129 h1:vucSRfWwTsoXro7P+3Cjlr6flUMtzCwzlvkxEQtHHB0=
+golang.org/x/net v0.0.0-20220708220712-1185a9018129/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20201101102859-da207088b7d1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210817190340-bfb29a6856f2 h1:c8PlLMqBbOHoqtjteWm5/kbe6rNY2pbRfbIMVnepueo=
 golang.org/x/sys v0.0.0-20210817190340-bfb29a6856f2/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.0.0-20220722155259-a9ba230a4035 h1:Q5284mrmYTpACcm+eAKjKJH48BBwSyfJqmmGDTtT8Vc=
 golang.org/x/term v0.0.0-20220722155259-a9ba230a4035/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
diff --git a/vendor/github.com/jacobsa/crypto/cmac/hash_generic.go b/vendor/github.com/jacobsa/crypto/cmac/hash_generic.go
new file mode 100644
index 0000000..235e3fc
--- /dev/null
+++ b/vendor/github.com/jacobsa/crypto/cmac/hash_generic.go
@@ -0,0 +1,40 @@
+// Copyright 2012 Aaron Jacobs. All Rights Reserved.
+// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build riscv64
+
+// This code doesn't require that it's safe to perform unaligned word-sized loads, but has a poor performance.
+
+package cmac
+
+import (
+	"unsafe"
+)
+
+// XOR the blockSize bytes starting at a and b, writing the result over dst.
+func xorBlock(
+	dstPtr unsafe.Pointer,
+	aPtr unsafe.Pointer,
+	bPtr unsafe.Pointer) {
+	// Convert.
+	a := (*[blockSize]byte)(aPtr)
+	b := (*[blockSize]byte)(bPtr)
+	dst := (*[blockSize]byte)(dstPtr)
+
+	// Compute.
+	for i := 0; i < blockSize; i++ {
+		dst[i] = a[i] ^ b[i]
+	}
+}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 0e97e42..634c079 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -5,19 +5,11 @@ github.com/hanwen/go-fuse/v2/fuse
 github.com/hanwen/go-fuse/v2/internal
 github.com/hanwen/go-fuse/v2/internal/utimens
 github.com/hanwen/go-fuse/v2/splice
-# github.com/jacobsa/crypto v0.0.0-20190317225127-9f44e2d11115
+# github.com/jacobsa/crypto v0.0.0-20190317225127-9f44e2d11115 => github.com/aperturerobotics/jacobsa-crypto v1.0.2-0.20221208222437-85e082e29e93
 ## explicit
 github.com/jacobsa/crypto/cmac
 github.com/jacobsa/crypto/common
 github.com/jacobsa/crypto/siv
-# github.com/jacobsa/oglematchers v0.0.0-20150720000706-141901ea67cd
-## explicit
-# github.com/jacobsa/oglemock v0.0.0-20150831005832-e94d794d06ff
-## explicit
-# github.com/jacobsa/ogletest v0.0.0-20170503003838-80d50a735a11
-## explicit
-# github.com/jacobsa/reqtrace v0.0.0-20150505043853-245c9e0234cb
-## explicit
 # github.com/pkg/xattr v0.4.3
 ## explicit
 github.com/pkg/xattr
@@ -39,9 +31,7 @@ golang.org/x/crypto/internal/subtle
 golang.org/x/crypto/pbkdf2
 golang.org/x/crypto/poly1305
 golang.org/x/crypto/scrypt
-# golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d
-## explicit
-# golang.org/x/sys v0.0.0-20210817190340-bfb29a6856f2
+# golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a => golang.org/x/sys v0.0.0-20210817190340-bfb29a6856f2
 ## explicit
 golang.org/x/sys/cpu
 golang.org/x/sys/internal/unsafeheader
@@ -51,3 +41,5 @@ golang.org/x/sys/windows
 # golang.org/x/term v0.0.0-20220722155259-a9ba230a4035
 ## explicit
 golang.org/x/term
+# github.com/jacobsa/crypto => github.com/aperturerobotics/jacobsa-crypto v1.0.2-0.20221208222437-85e082e29e93
+# golang.org/x/sys => golang.org/x/sys v0.0.0-20210817190340-bfb29a6856f2
-- 
2.38.1