diff --git a/pkg/metadata/go.mod b/pkg/metadata/go.mod
new file mode 100644
index 000000000..0aead2e64
--- /dev/null
+++ b/pkg/metadata/go.mod
@@ -0,0 +1,15 @@
+module github.com/linuxkit/linuxkit/pkg/metadata
+
+go 1.16
+
+require (
+	github.com/diskfs/go-diskfs v1.1.1
+	github.com/packethost/packngo v0.1.0
+	github.com/sirupsen/logrus v1.0.3
+	github.com/stretchr/testify v1.7.0 // indirect
+	github.com/vishvananda/netlink v0.0.0-20170808154308-f5a6f697a596
+	github.com/vishvananda/netns v0.0.0-20170707011535-86bef332bfc3 // indirect
+	golang.org/x/crypto v0.0.0-20180515001509-1a580b3eff78 // indirect
+	gopkg.in/airbrake/gobrake.v2 v2.0.9 // indirect
+	gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 // indirect
+)
diff --git a/pkg/metadata/go.sum b/pkg/metadata/go.sum
new file mode 100644
index 000000000..d6b176b97
--- /dev/null
+++ b/pkg/metadata/go.sum
@@ -0,0 +1,32 @@
+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/diskfs/go-diskfs v1.1.1 h1:rMjLpaydtXGVZb7mdkRGK1+//30i76nKAit89zUzeaI=
+github.com/diskfs/go-diskfs v1.1.1/go.mod h1:afUPxxu+x1snp4aCY2bKR0CoZ/YFJewV3X2UEr2nPZE=
+github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
+github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/packethost/packngo v0.1.0 h1:G/5zumXb2fbPm5MAM3y8MmugE66Ehpio5qx0IhdhTPc=
+github.com/packethost/packngo v0.1.0/go.mod h1:otzZQXgoO96RTzDB/Hycg0qZcXZsWJGJRSXbmEIJ+4M=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sirupsen/logrus v1.0.3 h1:B5C/igNWoiULof20pKfY4VntcIPqKuwEmoLZrabbUrc=
+github.com/sirupsen/logrus v1.0.3/go.mod h1:pMByvHTf9Beacp5x1UXfOR9xyW/9antXMhjMPG0dEzc=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/vishvananda/netlink v0.0.0-20170808154308-f5a6f697a596 h1:K6pwCps8j1ylaB37G0r6hGajvbNsdm+0ITJ6L88r65w=
+github.com/vishvananda/netlink v0.0.0-20170808154308-f5a6f697a596/go.mod h1:+SR5DhBJrl6ZM7CoCKvpw5BKroDKQ+PJqOg65H/2ktk=
+github.com/vishvananda/netns v0.0.0-20170707011535-86bef332bfc3 h1:NcYCJC+LbOrfvuf/uHeM/kxh6vOmiuInC4GAWRdc+P0=
+github.com/vishvananda/netns v0.0.0-20170707011535-86bef332bfc3/go.mod h1:ZjcWmFBXmLKZu9Nxj3WKYEafiSqer2rnvPr0en9UNpI=
+golang.org/x/crypto v0.0.0-20180515001509-1a580b3eff78 h1:uJIReYEB1ZZLarzi83Pmig1HhZ/cwFCysx05l0PFBIk=
+golang.org/x/crypto v0.0.0-20180515001509-1a580b3eff78/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/sys v0.0.0-20200420163511-1957bb5e6d1f h1:gWF768j/LaZugp8dyS4UwsslYCYz9XgFxvlgsn0n9H8=
+golang.org/x/sys v0.0.0-20200420163511-1957bb5e6d1f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+gopkg.in/airbrake/gobrake.v2 v2.0.9 h1:7z2uVWwn7oVeeugY1DtlPAy5H+KYgB1KeKTnqjNatLo=
+gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/djherbis/times.v1 v1.2.0 h1:UCvDKl1L/fmBygl2Y7hubXCnY7t4Yj46ZrBFNUipFbM=
+gopkg.in/djherbis/times.v1 v1.2.0/go.mod h1:AQlg6unIsrsCEdQYhTzERy542dz6SFdQFZFv6mUY0P8=
+gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 h1:OAj3g0cR6Dx/R07QgQe8wkA9RNjB2u4i700xBkIT4e0=
+gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/pkg/metadata/vendor.conf b/pkg/metadata/vendor.conf
deleted file mode 100644
index c52157621..000000000
--- a/pkg/metadata/vendor.conf
+++ /dev/null
@@ -1,9 +0,0 @@
-github.com/diskfs/go-diskfs 29b62ddcc13e0d45cf3ce57e586585b0998bcac1
-gopkg.in/djherbis/times.v1 v1.2.0
-github.com/google/uuid v1.1.1
-github.com/packethost/packngo 131798f2804a1b3e895ca98047d56f0d7e094e2a
-github.com/sirupsen/logrus v1.0.3
-github.com/vishvananda/netlink f5a6f697a596c788d474984a38a0ac4ba0719e93
-github.com/vishvananda/netns 86bef332bfc3b59b7624a600bd53009ce91a9829
-golang.org/x/crypto 1a580b3eff7814fc9b40602fd35256c63b50f491
-golang.org/x/sys 1957bb5e6d1f523308b49060df02171d06ddfc77
diff --git a/pkg/metadata/vendor/github.com/diskfs/go-diskfs/.gitignore b/pkg/metadata/vendor/github.com/diskfs/go-diskfs/.gitignore
new file mode 100644
index 000000000..48b8bf907
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/diskfs/go-diskfs/.gitignore
@@ -0,0 +1 @@
+vendor/
diff --git a/pkg/metadata/vendor/github.com/diskfs/go-diskfs/Makefile b/pkg/metadata/vendor/github.com/diskfs/go-diskfs/Makefile
new file mode 100644
index 000000000..36173b2bf
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/diskfs/go-diskfs/Makefile
@@ -0,0 +1,83 @@
+.PHONY: test image unit_test
+
+PACKAGE_NAME?=github.com/diskfs/go-diskfs
+IMAGE ?= diskfs/go-diskfs:build
+GOENV ?= GO111MODULE=on CGO_ENABLED=0
+GO_FILES ?= $(shell $(GOENV) go list ./...)
+GOBIN ?= $(shell go env GOPATH)/bin
+LINTER ?= $(GOBIN)/golangci-lint
+
+
+# BUILDARCH is the host architecture
+# ARCH is the target architecture
+# we need to keep track of them separately
+BUILDARCH ?= $(shell uname -m)
+BUILDOS ?= $(shell uname -s | tr A-Z a-z)
+
+# canonicalized names for host architecture
+ifeq ($(BUILDARCH),aarch64)
+BUILDARCH=arm64
+endif
+ifeq ($(BUILDARCH),x86_64)
+BUILDARCH=amd64
+endif
+
+# unless otherwise set, I am building for my own architecture, i.e. not cross-compiling
+# and for my OS
+ARCH ?= $(BUILDARCH)
+OS ?= $(BUILDOS)
+
+# canonicalized names for target architecture
+ifeq ($(ARCH),aarch64)
+        override ARCH=arm64
+endif
+ifeq ($(ARCH),x86_64)
+    override ARCH=amd64
+endif
+
+BUILD_CMD = CGO_ENABLED=0 GOOS=$(OS) GOARCH=$(ARCH)
+ifdef DOCKERBUILD
+BUILD_CMD = docker run --rm \
+                -e GOARCH=$(ARCH) \
+                -e GOOS=linux \
+                -e CGO_ENABLED=0 \
+                -v $(CURDIR):/go/src/$(PACKAGE_NAME) \
+                -w /go/src/$(PACKAGE_NAME) \
+                $(BUILDER_IMAGE)
+endif
+
+image:
+	docker build -t $(IMAGE) testhelper/docker
+
+# because we keep making the same typo
+unit-test: unit_test
+unit_test:
+	@$(GOENV) go test $(GO_FILES)
+
+test: image
+	TEST_IMAGE=$(IMAGE) $(GOENV) go test $(GO_FILES)
+
+golangci-lint: $(LINTER)
+$(LINTER):
+	$(GOENV) go get github.com/golangci/golangci-lint/cmd/golangci-lint@v1.17.1
+
+
+## Check the file format
+fmt-check:
+	@if [ -n "$(shell $(BUILD_CMD) gofmt -l ${GO_FILES})" ]; then \
+	  $(BUILD_CMD) gofmt -s -e -d ${GO_FILES}; \
+	  exit 1; \
+	fi
+
+## Lint the files
+lint: golint golangci-lint
+	@$(BUILD_CMD) $(LINTER) run --disable-all --enable=golint ./...
+
+golint:
+ifeq (, $(shell which golint))
+	go get -u golang.org/x/lint/golint
+endif
+
+## Vet the files
+vet:
+	@$(BUILD_CMD) go vet ${GO_FILES}
diff --git a/pkg/metadata/vendor/github.com/diskfs/go-diskfs/go.sum b/pkg/metadata/vendor/github.com/diskfs/go-diskfs/go.sum
new file mode 100644
index 000000000..2d5e29cff
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/diskfs/go-diskfs/go.sum
@@ -0,0 +1,8 @@
+github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
+github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+golang.org/x/sys v0.0.0-20190804053845-51ab0e2deafa h1:KIDDMLT1O0Nr7TSxp8xM5tJcdn8tgyAONntO829og1M=
+golang.org/x/sys v0.0.0-20190804053845-51ab0e2deafa/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200420163511-1957bb5e6d1f h1:gWF768j/LaZugp8dyS4UwsslYCYz9XgFxvlgsn0n9H8=
+golang.org/x/sys v0.0.0-20200420163511-1957bb5e6d1f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+gopkg.in/djherbis/times.v1 v1.2.0 h1:UCvDKl1L/fmBygl2Y7hubXCnY7t4Yj46ZrBFNUipFbM=
+gopkg.in/djherbis/times.v1 v1.2.0/go.mod h1:AQlg6unIsrsCEdQYhTzERy542dz6SFdQFZFv6mUY0P8=
diff --git a/pkg/metadata/vendor/github.com/google/uuid/.travis.yml b/pkg/metadata/vendor/github.com/google/uuid/.travis.yml
new file mode 100644
index 000000000..d8156a60b
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/google/uuid/.travis.yml
@@ -0,0 +1,9 @@
+language: go
+
+go:
+  - 1.4.3
+  - 1.5.3
+  - tip
+
+script:
+  - go test -v ./...
diff --git a/pkg/metadata/vendor/github.com/google/uuid/CONTRIBUTING.md b/pkg/metadata/vendor/github.com/google/uuid/CONTRIBUTING.md
new file mode 100644
index 000000000..04fdf09f1
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/google/uuid/CONTRIBUTING.md
@@ -0,0 +1,10 @@
+# How to contribute
+
+We definitely welcome patches and contribution to this project!
+
+### Legal requirements
+
+In order to protect both you and ourselves, you will need to sign the
+[Contributor License Agreement](https://cla.developers.google.com/clas).
+
+You may have already signed it for other Google projects.
diff --git a/pkg/metadata/vendor/github.com/google/uuid/CONTRIBUTORS b/pkg/metadata/vendor/github.com/google/uuid/CONTRIBUTORS
new file mode 100644
index 000000000..b4bb97f6b
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/google/uuid/CONTRIBUTORS
@@ -0,0 +1,9 @@
+Paul Borman <borman@google.com>
+bmatsuo
+shawnps
+theory
+jboverfelt
+dsymonds
+cd1
+wallclockbuilder
+dansouza
diff --git a/pkg/metadata/vendor/github.com/packethost/packngo/README.md b/pkg/metadata/vendor/github.com/packethost/packngo/README.md
deleted file mode 100644
index d359a10d6..000000000
--- a/pkg/metadata/vendor/github.com/packethost/packngo/README.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# packngo
-Packet Go Api Client
-
-![](https://www.packet.net/media/labs/images/1679091c5a880faf6fb5e6087eb1b2dc/ULY7-hero.png)
-
-Committing
-----------
-
-Before committing, it's a good idea to run `gofmt -w *.go`. ([gofmt](https://golang.org/cmd/gofmt/))
diff --git a/pkg/metadata/vendor/github.com/sirupsen/logrus/.gitignore b/pkg/metadata/vendor/github.com/sirupsen/logrus/.gitignore
new file mode 100644
index 000000000..66be63a00
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/sirupsen/logrus/.gitignore
@@ -0,0 +1 @@
+logrus
diff --git a/pkg/metadata/vendor/github.com/sirupsen/logrus/.travis.yml b/pkg/metadata/vendor/github.com/sirupsen/logrus/.travis.yml
new file mode 100644
index 000000000..a23296a53
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/sirupsen/logrus/.travis.yml
@@ -0,0 +1,15 @@
+language: go
+go:
+  - 1.6.x
+  - 1.7.x
+  - 1.8.x
+  - tip
+env:
+  - GOMAXPROCS=4 GORACE=halt_on_error=1
+install:
+  - go get github.com/stretchr/testify/assert
+  - go get gopkg.in/gemnasium/logrus-airbrake-hook.v2
+  - go get golang.org/x/sys/unix
+  - go get golang.org/x/sys/windows
+script:
+  - go test -race -v ./...
diff --git a/pkg/metadata/vendor/github.com/sirupsen/logrus/CHANGELOG.md b/pkg/metadata/vendor/github.com/sirupsen/logrus/CHANGELOG.md
new file mode 100644
index 000000000..8236d8b6e
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/sirupsen/logrus/CHANGELOG.md
@@ -0,0 +1,113 @@
+# 1.0.3
+
+* Replace example files with testable examples
+
+# 1.0.2
+
+* bug: quote non-string values in text formatter (#583)
+* Make (*Logger) SetLevel a public method
+
+# 1.0.1
+
+* bug: fix escaping in text formatter (#575)
+
+# 1.0.0
+
+* Officially changed name to lower-case
+* bug: colors on Windows 10 (#541)
+* bug: fix race in accessing level (#512)
+
+# 0.11.5
+
+* feature: add writer and writerlevel to entry (#372)
+
+# 0.11.4
+
+* bug: fix undefined variable on solaris (#493)
+
+# 0.11.3
+
+* formatter: configure quoting of empty values (#484)
+* formatter: configure quoting character (default is `"`) (#484)
+* bug: fix not importing io correctly in non-linux environments (#481)
+
+# 0.11.2
+
+* bug: fix windows terminal detection (#476)
+
+# 0.11.1
+
+* bug: fix tty detection with custom out (#471)
+
+# 0.11.0
+
+* performance: Use bufferpool to allocate (#370)
+* terminal: terminal detection for app-engine (#343)
+* feature: exit handler (#375)
+
+# 0.10.0
+
+* feature: Add a test hook (#180)
+* feature: `ParseLevel` is now case-insensitive (#326)
+* feature: `FieldLogger` interface that generalizes `Logger` and `Entry` (#308)
+* performance: avoid re-allocations on `WithFields` (#335)
+
+# 0.9.0
+
+* logrus/text_formatter: don't emit empty msg
+* logrus/hooks/airbrake: move out of main repository
+* logrus/hooks/sentry: move out of main repository
+* logrus/hooks/papertrail: move out of main repository
+* logrus/hooks/bugsnag: move out of main repository
+* logrus/core: run tests with `-race`
+* logrus/core: detect TTY based on `stderr`
+* logrus/core: support `WithError` on logger
+* logrus/core: Solaris support
+
+# 0.8.7
+
+* logrus/core: fix possible race (#216)
+* logrus/doc: small typo fixes and doc improvements
+
+
+# 0.8.6
+
+* hooks/raven: allow passing an initialized client
+
+# 0.8.5
+
+* logrus/core: revert #208
+
+# 0.8.4
+
+* formatter/text: fix data race (#218)
+
+# 0.8.3
+
+* logrus/core: fix entry log level (#208)
+* logrus/core: improve performance of text formatter by 40%
+* logrus/core: expose `LevelHooks` type
+* logrus/core: add support for DragonflyBSD and NetBSD
+* formatter/text: print structs more verbosely
+
+# 0.8.2
+
+* logrus: fix more Fatal family functions
+
+# 0.8.1
+
+* logrus: fix not exiting on `Fatalf` and `Fatalln`
+
+# 0.8.0
+
+* logrus: defaults to stderr instead of stdout
+* hooks/sentry: add special field for `*http.Request`
+* formatter/text: ignore Windows for colors
+
+# 0.7.3
+
+* formatter/\*: allow configuration of timestamp layout
+
+# 0.7.2
+
+* formatter/text: Add configuration option for time format (#158)
diff --git a/pkg/metadata/vendor/github.com/sirupsen/logrus/appveyor.yml b/pkg/metadata/vendor/github.com/sirupsen/logrus/appveyor.yml
new file mode 100644
index 000000000..b4ffca275
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/sirupsen/logrus/appveyor.yml
@@ -0,0 +1,14 @@
+version: "{build}"
+platform: x64
+clone_folder: c:\gopath\src\github.com\sirupsen\logrus
+environment:  
+  GOPATH: c:\gopath
+branches:  
+  only:
+    - master
+install:  
+  - set PATH=%GOPATH%\bin;c:\go\bin;%PATH%
+  - go version
+build_script:  
+  - go get -t
+  - go test
diff --git a/pkg/metadata/vendor/github.com/vishvananda/netlink/.travis.yml b/pkg/metadata/vendor/github.com/vishvananda/netlink/.travis.yml
new file mode 100644
index 000000000..f5c0b3eb5
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/vishvananda/netlink/.travis.yml
@@ -0,0 +1,13 @@
+language: go
+before_script:
+  # make sure we keep path in tact when we sudo
+  - sudo sed -i -e 's/^Defaults\tsecure_path.*$//' /etc/sudoers
+  # modprobe ip_gre or else the first gre device can't be deleted
+  - sudo modprobe ip_gre
+  # modprobe nf_conntrack for the conntrack testing
+  - sudo modprobe nf_conntrack
+  - sudo modprobe nf_conntrack_netlink
+  - sudo modprobe nf_conntrack_ipv4
+  - sudo modprobe nf_conntrack_ipv6
+install:
+  - go get github.com/vishvananda/netns
diff --git a/pkg/metadata/vendor/github.com/vishvananda/netlink/Makefile b/pkg/metadata/vendor/github.com/vishvananda/netlink/Makefile
new file mode 100644
index 000000000..6c8413b13
--- /dev/null
+++ b/pkg/metadata/vendor/github.com/vishvananda/netlink/Makefile
@@ -0,0 +1,29 @@
+DIRS := \
+	. \
+	nl
+
+DEPS = \
+	github.com/vishvananda/netns
+
+uniq = $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
+testdirs = $(call uniq,$(foreach d,$(1),$(dir $(wildcard $(d)/*_test.go))))
+goroot = $(addprefix ../../../,$(1))
+unroot = $(subst ../../../,,$(1))
+fmt = $(addprefix fmt-,$(1))
+
+all: test
+
+$(call goroot,$(DEPS)):
+	go get $(call unroot,$@)
+
+.PHONY: $(call testdirs,$(DIRS))
+$(call testdirs,$(DIRS)):
+	sudo -E go test -test.parallel 4 -timeout 60s -v github.com/vishvananda/netlink/$@
+
+$(call fmt,$(call testdirs,$(DIRS))):
+	! gofmt -l $(subst fmt-,,$@)/*.go | grep -q .
+
+.PHONY: fmt
+fmt: $(call fmt,$(call testdirs,$(DIRS)))
+
+test: fmt $(call goroot,$(DEPS)) $(call testdirs,$(DIRS))
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/AUTHORS b/pkg/metadata/vendor/golang.org/x/crypto/AUTHORS
new file mode 100644
index 000000000..2b00ddba0
--- /dev/null
+++ b/pkg/metadata/vendor/golang.org/x/crypto/AUTHORS
@@ -0,0 +1,3 @@
+# This source code refers to The Go Authors for copyright purposes.
+# The master list of authors is in the main Go distribution,
+# visible at https://tip.golang.org/AUTHORS.
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/CONTRIBUTORS b/pkg/metadata/vendor/golang.org/x/crypto/CONTRIBUTORS
new file mode 100644
index 000000000..1fbd3e976
--- /dev/null
+++ b/pkg/metadata/vendor/golang.org/x/crypto/CONTRIBUTORS
@@ -0,0 +1,3 @@
+# This source code was written by the Go contributors.
+# The master list of contributors is in the main Go distribution,
+# visible at https://tip.golang.org/CONTRIBUTORS.
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/README.md b/pkg/metadata/vendor/golang.org/x/crypto/README.md
deleted file mode 100644
index c9d6fecd1..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/README.md
+++ /dev/null
@@ -1,21 +0,0 @@
-# Go Cryptography
-
-This repository holds supplementary Go cryptography libraries.
-
-## Download/Install
-
-The easiest way to install is to run `go get -u golang.org/x/crypto/...`. You
-can also manually git clone the repository to `$GOPATH/src/golang.org/x/crypto`.
-
-## Report Issues / Send Patches
-
-This repository uses Gerrit for code changes. To learn how to submit changes to
-this repository, see https://golang.org/doc/contribute.html.
-
-The main issue tracker for the crypto repository is located at
-https://github.com/golang/go/issues. Prefix your issue with "x/crypto:" in the
-subject line, so it is easy to find.
-
-Note that contributions to the cryptography package receive additional scrutiny
-due to their sensitive nature. Patches may take longer than normal to receive
-feedback.
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/const_amd64.h b/pkg/metadata/vendor/golang.org/x/crypto/curve25519/const_amd64.h
deleted file mode 100644
index b3f74162f..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/const_amd64.h
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
-
-#define REDMASK51     0x0007FFFFFFFFFFFF
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/const_amd64.s b/pkg/metadata/vendor/golang.org/x/crypto/curve25519/const_amd64.s
deleted file mode 100644
index ee7b4bd5f..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/const_amd64.s
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
-
-// +build amd64,!gccgo,!appengine
-
-// These constants cannot be encoded in non-MOVQ immediates.
-// We access them directly from memory instead.
-
-DATA ·_121666_213(SB)/8, $996687872
-GLOBL ·_121666_213(SB), 8, $8
-
-DATA ·_2P0(SB)/8, $0xFFFFFFFFFFFDA
-GLOBL ·_2P0(SB), 8, $8
-
-DATA ·_2P1234(SB)/8, $0xFFFFFFFFFFFFE
-GLOBL ·_2P1234(SB), 8, $8
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/cswap_amd64.s b/pkg/metadata/vendor/golang.org/x/crypto/curve25519/cswap_amd64.s
deleted file mode 100644
index cd793a5b5..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/cswap_amd64.s
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-// func cswap(inout *[4][5]uint64, v uint64)
-TEXT ·cswap(SB),7,$0
-	MOVQ inout+0(FP),DI
-	MOVQ v+8(FP),SI
-
-	SUBQ $1, SI
-	NOTQ SI
-	MOVQ SI, X15
-	PSHUFD $0x44, X15, X15
-
-	MOVOU 0(DI), X0
-	MOVOU 16(DI), X2
-	MOVOU 32(DI), X4
-	MOVOU 48(DI), X6
-	MOVOU 64(DI), X8
-	MOVOU 80(DI), X1
-	MOVOU 96(DI), X3
-	MOVOU 112(DI), X5
-	MOVOU 128(DI), X7
-	MOVOU 144(DI), X9
-
-	MOVO X1, X10
-	MOVO X3, X11
-	MOVO X5, X12
-	MOVO X7, X13
-	MOVO X9, X14
-
-	PXOR X0, X10
-	PXOR X2, X11
-	PXOR X4, X12
-	PXOR X6, X13
-	PXOR X8, X14
-	PAND X15, X10
-	PAND X15, X11
-	PAND X15, X12
-	PAND X15, X13
-	PAND X15, X14
-	PXOR X10, X0
-	PXOR X10, X1
-	PXOR X11, X2
-	PXOR X11, X3
-	PXOR X12, X4
-	PXOR X12, X5
-	PXOR X13, X6
-	PXOR X13, X7
-	PXOR X14, X8
-	PXOR X14, X9
-
-	MOVOU X0, 0(DI)
-	MOVOU X2, 16(DI)
-	MOVOU X4, 32(DI)
-	MOVOU X6, 48(DI)
-	MOVOU X8, 64(DI)
-	MOVOU X1, 80(DI)
-	MOVOU X3, 96(DI)
-	MOVOU X5, 112(DI)
-	MOVOU X7, 128(DI)
-	MOVOU X9, 144(DI)
-	RET
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/curve25519.go b/pkg/metadata/vendor/golang.org/x/crypto/curve25519/curve25519.go
deleted file mode 100644
index cb8fbc57b..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/curve25519.go
+++ /dev/null
@@ -1,834 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// We have an implementation in amd64 assembly so this code is only run on
-// non-amd64 platforms. The amd64 assembly does not support gccgo.
-// +build !amd64 gccgo appengine
-
-package curve25519
-
-import (
-	"encoding/binary"
-)
-
-// This code is a port of the public domain, "ref10" implementation of
-// curve25519 from SUPERCOP 20130419 by D. J. Bernstein.
-
-// fieldElement represents an element of the field GF(2^255 - 19). An element
-// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
-// t[3]+2^102 t[4]+...+2^230 t[9]. Bounds on each t[i] vary depending on
-// context.
-type fieldElement [10]int32
-
-func feZero(fe *fieldElement) {
-	for i := range fe {
-		fe[i] = 0
-	}
-}
-
-func feOne(fe *fieldElement) {
-	feZero(fe)
-	fe[0] = 1
-}
-
-func feAdd(dst, a, b *fieldElement) {
-	for i := range dst {
-		dst[i] = a[i] + b[i]
-	}
-}
-
-func feSub(dst, a, b *fieldElement) {
-	for i := range dst {
-		dst[i] = a[i] - b[i]
-	}
-}
-
-func feCopy(dst, src *fieldElement) {
-	for i := range dst {
-		dst[i] = src[i]
-	}
-}
-
-// feCSwap replaces (f,g) with (g,f) if b == 1; replaces (f,g) with (f,g) if b == 0.
-//
-// Preconditions: b in {0,1}.
-func feCSwap(f, g *fieldElement, b int32) {
-	b = -b
-	for i := range f {
-		t := b & (f[i] ^ g[i])
-		f[i] ^= t
-		g[i] ^= t
-	}
-}
-
-// load3 reads a 24-bit, little-endian value from in.
-func load3(in []byte) int64 {
-	var r int64
-	r = int64(in[0])
-	r |= int64(in[1]) << 8
-	r |= int64(in[2]) << 16
-	return r
-}
-
-// load4 reads a 32-bit, little-endian value from in.
-func load4(in []byte) int64 {
-	return int64(binary.LittleEndian.Uint32(in))
-}
-
-func feFromBytes(dst *fieldElement, src *[32]byte) {
-	h0 := load4(src[:])
-	h1 := load3(src[4:]) << 6
-	h2 := load3(src[7:]) << 5
-	h3 := load3(src[10:]) << 3
-	h4 := load3(src[13:]) << 2
-	h5 := load4(src[16:])
-	h6 := load3(src[20:]) << 7
-	h7 := load3(src[23:]) << 5
-	h8 := load3(src[26:]) << 4
-	h9 := load3(src[29:]) << 2
-
-	var carry [10]int64
-	carry[9] = (h9 + 1<<24) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-	carry[1] = (h1 + 1<<24) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[3] = (h3 + 1<<24) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[5] = (h5 + 1<<24) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-	carry[7] = (h7 + 1<<24) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-
-	carry[0] = (h0 + 1<<25) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[2] = (h2 + 1<<25) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[4] = (h4 + 1<<25) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[6] = (h6 + 1<<25) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-	carry[8] = (h8 + 1<<25) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-
-	dst[0] = int32(h0)
-	dst[1] = int32(h1)
-	dst[2] = int32(h2)
-	dst[3] = int32(h3)
-	dst[4] = int32(h4)
-	dst[5] = int32(h5)
-	dst[6] = int32(h6)
-	dst[7] = int32(h7)
-	dst[8] = int32(h8)
-	dst[9] = int32(h9)
-}
-
-// feToBytes marshals h to s.
-// Preconditions:
-//   |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-//
-// Write p=2^255-19; q=floor(h/p).
-// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
-//
-// Proof:
-//   Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
-//   Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4.
-//
-//   Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
-//   Then 0<y<1.
-//
-//   Write r=h-pq.
-//   Have 0<=r<=p-1=2^255-20.
-//   Thus 0<=r+19(2^-255)r<r+19(2^-255)2^255<=2^255-1.
-//
-//   Write x=r+19(2^-255)r+y.
-//   Then 0<x<2^255 so floor(2^(-255)x) = 0 so floor(q+2^(-255)x) = q.
-//
-//   Have q+2^(-255)x = 2^(-255)(h + 19 2^(-25) h9 + 2^(-1))
-//   so floor(2^(-255)(h + 19 2^(-25) h9 + 2^(-1))) = q.
-func feToBytes(s *[32]byte, h *fieldElement) {
-	var carry [10]int32
-
-	q := (19*h[9] + (1 << 24)) >> 25
-	q = (h[0] + q) >> 26
-	q = (h[1] + q) >> 25
-	q = (h[2] + q) >> 26
-	q = (h[3] + q) >> 25
-	q = (h[4] + q) >> 26
-	q = (h[5] + q) >> 25
-	q = (h[6] + q) >> 26
-	q = (h[7] + q) >> 25
-	q = (h[8] + q) >> 26
-	q = (h[9] + q) >> 25
-
-	// Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20.
-	h[0] += 19 * q
-	// Goal: Output h-2^255 q, which is between 0 and 2^255-20.
-
-	carry[0] = h[0] >> 26
-	h[1] += carry[0]
-	h[0] -= carry[0] << 26
-	carry[1] = h[1] >> 25
-	h[2] += carry[1]
-	h[1] -= carry[1] << 25
-	carry[2] = h[2] >> 26
-	h[3] += carry[2]
-	h[2] -= carry[2] << 26
-	carry[3] = h[3] >> 25
-	h[4] += carry[3]
-	h[3] -= carry[3] << 25
-	carry[4] = h[4] >> 26
-	h[5] += carry[4]
-	h[4] -= carry[4] << 26
-	carry[5] = h[5] >> 25
-	h[6] += carry[5]
-	h[5] -= carry[5] << 25
-	carry[6] = h[6] >> 26
-	h[7] += carry[6]
-	h[6] -= carry[6] << 26
-	carry[7] = h[7] >> 25
-	h[8] += carry[7]
-	h[7] -= carry[7] << 25
-	carry[8] = h[8] >> 26
-	h[9] += carry[8]
-	h[8] -= carry[8] << 26
-	carry[9] = h[9] >> 25
-	h[9] -= carry[9] << 25
-	// h10 = carry9
-
-	// Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20.
-	// Have h[0]+...+2^230 h[9] between 0 and 2^255-1;
-	// evidently 2^255 h10-2^255 q = 0.
-	// Goal: Output h[0]+...+2^230 h[9].
-
-	s[0] = byte(h[0] >> 0)
-	s[1] = byte(h[0] >> 8)
-	s[2] = byte(h[0] >> 16)
-	s[3] = byte((h[0] >> 24) | (h[1] << 2))
-	s[4] = byte(h[1] >> 6)
-	s[5] = byte(h[1] >> 14)
-	s[6] = byte((h[1] >> 22) | (h[2] << 3))
-	s[7] = byte(h[2] >> 5)
-	s[8] = byte(h[2] >> 13)
-	s[9] = byte((h[2] >> 21) | (h[3] << 5))
-	s[10] = byte(h[3] >> 3)
-	s[11] = byte(h[3] >> 11)
-	s[12] = byte((h[3] >> 19) | (h[4] << 6))
-	s[13] = byte(h[4] >> 2)
-	s[14] = byte(h[4] >> 10)
-	s[15] = byte(h[4] >> 18)
-	s[16] = byte(h[5] >> 0)
-	s[17] = byte(h[5] >> 8)
-	s[18] = byte(h[5] >> 16)
-	s[19] = byte((h[5] >> 24) | (h[6] << 1))
-	s[20] = byte(h[6] >> 7)
-	s[21] = byte(h[6] >> 15)
-	s[22] = byte((h[6] >> 23) | (h[7] << 3))
-	s[23] = byte(h[7] >> 5)
-	s[24] = byte(h[7] >> 13)
-	s[25] = byte((h[7] >> 21) | (h[8] << 4))
-	s[26] = byte(h[8] >> 4)
-	s[27] = byte(h[8] >> 12)
-	s[28] = byte((h[8] >> 20) | (h[9] << 6))
-	s[29] = byte(h[9] >> 2)
-	s[30] = byte(h[9] >> 10)
-	s[31] = byte(h[9] >> 18)
-}
-
-// feMul calculates h = f * g
-// Can overlap h with f or g.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//    |g| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-//
-// Notes on implementation strategy:
-//
-// Using schoolbook multiplication.
-// Karatsuba would save a little in some cost models.
-//
-// Most multiplications by 2 and 19 are 32-bit precomputations;
-// cheaper than 64-bit postcomputations.
-//
-// There is one remaining multiplication by 19 in the carry chain;
-// one *19 precomputation can be merged into this,
-// but the resulting data flow is considerably less clean.
-//
-// There are 12 carries below.
-// 10 of them are 2-way parallelizable and vectorizable.
-// Can get away with 11 carries, but then data flow is much deeper.
-//
-// With tighter constraints on inputs can squeeze carries into int32.
-func feMul(h, f, g *fieldElement) {
-	f0 := f[0]
-	f1 := f[1]
-	f2 := f[2]
-	f3 := f[3]
-	f4 := f[4]
-	f5 := f[5]
-	f6 := f[6]
-	f7 := f[7]
-	f8 := f[8]
-	f9 := f[9]
-	g0 := g[0]
-	g1 := g[1]
-	g2 := g[2]
-	g3 := g[3]
-	g4 := g[4]
-	g5 := g[5]
-	g6 := g[6]
-	g7 := g[7]
-	g8 := g[8]
-	g9 := g[9]
-	g1_19 := 19 * g1 // 1.4*2^29
-	g2_19 := 19 * g2 // 1.4*2^30; still ok
-	g3_19 := 19 * g3
-	g4_19 := 19 * g4
-	g5_19 := 19 * g5
-	g6_19 := 19 * g6
-	g7_19 := 19 * g7
-	g8_19 := 19 * g8
-	g9_19 := 19 * g9
-	f1_2 := 2 * f1
-	f3_2 := 2 * f3
-	f5_2 := 2 * f5
-	f7_2 := 2 * f7
-	f9_2 := 2 * f9
-	f0g0 := int64(f0) * int64(g0)
-	f0g1 := int64(f0) * int64(g1)
-	f0g2 := int64(f0) * int64(g2)
-	f0g3 := int64(f0) * int64(g3)
-	f0g4 := int64(f0) * int64(g4)
-	f0g5 := int64(f0) * int64(g5)
-	f0g6 := int64(f0) * int64(g6)
-	f0g7 := int64(f0) * int64(g7)
-	f0g8 := int64(f0) * int64(g8)
-	f0g9 := int64(f0) * int64(g9)
-	f1g0 := int64(f1) * int64(g0)
-	f1g1_2 := int64(f1_2) * int64(g1)
-	f1g2 := int64(f1) * int64(g2)
-	f1g3_2 := int64(f1_2) * int64(g3)
-	f1g4 := int64(f1) * int64(g4)
-	f1g5_2 := int64(f1_2) * int64(g5)
-	f1g6 := int64(f1) * int64(g6)
-	f1g7_2 := int64(f1_2) * int64(g7)
-	f1g8 := int64(f1) * int64(g8)
-	f1g9_38 := int64(f1_2) * int64(g9_19)
-	f2g0 := int64(f2) * int64(g0)
-	f2g1 := int64(f2) * int64(g1)
-	f2g2 := int64(f2) * int64(g2)
-	f2g3 := int64(f2) * int64(g3)
-	f2g4 := int64(f2) * int64(g4)
-	f2g5 := int64(f2) * int64(g5)
-	f2g6 := int64(f2) * int64(g6)
-	f2g7 := int64(f2) * int64(g7)
-	f2g8_19 := int64(f2) * int64(g8_19)
-	f2g9_19 := int64(f2) * int64(g9_19)
-	f3g0 := int64(f3) * int64(g0)
-	f3g1_2 := int64(f3_2) * int64(g1)
-	f3g2 := int64(f3) * int64(g2)
-	f3g3_2 := int64(f3_2) * int64(g3)
-	f3g4 := int64(f3) * int64(g4)
-	f3g5_2 := int64(f3_2) * int64(g5)
-	f3g6 := int64(f3) * int64(g6)
-	f3g7_38 := int64(f3_2) * int64(g7_19)
-	f3g8_19 := int64(f3) * int64(g8_19)
-	f3g9_38 := int64(f3_2) * int64(g9_19)
-	f4g0 := int64(f4) * int64(g0)
-	f4g1 := int64(f4) * int64(g1)
-	f4g2 := int64(f4) * int64(g2)
-	f4g3 := int64(f4) * int64(g3)
-	f4g4 := int64(f4) * int64(g4)
-	f4g5 := int64(f4) * int64(g5)
-	f4g6_19 := int64(f4) * int64(g6_19)
-	f4g7_19 := int64(f4) * int64(g7_19)
-	f4g8_19 := int64(f4) * int64(g8_19)
-	f4g9_19 := int64(f4) * int64(g9_19)
-	f5g0 := int64(f5) * int64(g0)
-	f5g1_2 := int64(f5_2) * int64(g1)
-	f5g2 := int64(f5) * int64(g2)
-	f5g3_2 := int64(f5_2) * int64(g3)
-	f5g4 := int64(f5) * int64(g4)
-	f5g5_38 := int64(f5_2) * int64(g5_19)
-	f5g6_19 := int64(f5) * int64(g6_19)
-	f5g7_38 := int64(f5_2) * int64(g7_19)
-	f5g8_19 := int64(f5) * int64(g8_19)
-	f5g9_38 := int64(f5_2) * int64(g9_19)
-	f6g0 := int64(f6) * int64(g0)
-	f6g1 := int64(f6) * int64(g1)
-	f6g2 := int64(f6) * int64(g2)
-	f6g3 := int64(f6) * int64(g3)
-	f6g4_19 := int64(f6) * int64(g4_19)
-	f6g5_19 := int64(f6) * int64(g5_19)
-	f6g6_19 := int64(f6) * int64(g6_19)
-	f6g7_19 := int64(f6) * int64(g7_19)
-	f6g8_19 := int64(f6) * int64(g8_19)
-	f6g9_19 := int64(f6) * int64(g9_19)
-	f7g0 := int64(f7) * int64(g0)
-	f7g1_2 := int64(f7_2) * int64(g1)
-	f7g2 := int64(f7) * int64(g2)
-	f7g3_38 := int64(f7_2) * int64(g3_19)
-	f7g4_19 := int64(f7) * int64(g4_19)
-	f7g5_38 := int64(f7_2) * int64(g5_19)
-	f7g6_19 := int64(f7) * int64(g6_19)
-	f7g7_38 := int64(f7_2) * int64(g7_19)
-	f7g8_19 := int64(f7) * int64(g8_19)
-	f7g9_38 := int64(f7_2) * int64(g9_19)
-	f8g0 := int64(f8) * int64(g0)
-	f8g1 := int64(f8) * int64(g1)
-	f8g2_19 := int64(f8) * int64(g2_19)
-	f8g3_19 := int64(f8) * int64(g3_19)
-	f8g4_19 := int64(f8) * int64(g4_19)
-	f8g5_19 := int64(f8) * int64(g5_19)
-	f8g6_19 := int64(f8) * int64(g6_19)
-	f8g7_19 := int64(f8) * int64(g7_19)
-	f8g8_19 := int64(f8) * int64(g8_19)
-	f8g9_19 := int64(f8) * int64(g9_19)
-	f9g0 := int64(f9) * int64(g0)
-	f9g1_38 := int64(f9_2) * int64(g1_19)
-	f9g2_19 := int64(f9) * int64(g2_19)
-	f9g3_38 := int64(f9_2) * int64(g3_19)
-	f9g4_19 := int64(f9) * int64(g4_19)
-	f9g5_38 := int64(f9_2) * int64(g5_19)
-	f9g6_19 := int64(f9) * int64(g6_19)
-	f9g7_38 := int64(f9_2) * int64(g7_19)
-	f9g8_19 := int64(f9) * int64(g8_19)
-	f9g9_38 := int64(f9_2) * int64(g9_19)
-	h0 := f0g0 + f1g9_38 + f2g8_19 + f3g7_38 + f4g6_19 + f5g5_38 + f6g4_19 + f7g3_38 + f8g2_19 + f9g1_38
-	h1 := f0g1 + f1g0 + f2g9_19 + f3g8_19 + f4g7_19 + f5g6_19 + f6g5_19 + f7g4_19 + f8g3_19 + f9g2_19
-	h2 := f0g2 + f1g1_2 + f2g0 + f3g9_38 + f4g8_19 + f5g7_38 + f6g6_19 + f7g5_38 + f8g4_19 + f9g3_38
-	h3 := f0g3 + f1g2 + f2g1 + f3g0 + f4g9_19 + f5g8_19 + f6g7_19 + f7g6_19 + f8g5_19 + f9g4_19
-	h4 := f0g4 + f1g3_2 + f2g2 + f3g1_2 + f4g0 + f5g9_38 + f6g8_19 + f7g7_38 + f8g6_19 + f9g5_38
-	h5 := f0g5 + f1g4 + f2g3 + f3g2 + f4g1 + f5g0 + f6g9_19 + f7g8_19 + f8g7_19 + f9g6_19
-	h6 := f0g6 + f1g5_2 + f2g4 + f3g3_2 + f4g2 + f5g1_2 + f6g0 + f7g9_38 + f8g8_19 + f9g7_38
-	h7 := f0g7 + f1g6 + f2g5 + f3g4 + f4g3 + f5g2 + f6g1 + f7g0 + f8g9_19 + f9g8_19
-	h8 := f0g8 + f1g7_2 + f2g6 + f3g5_2 + f4g4 + f5g3_2 + f6g2 + f7g1_2 + f8g0 + f9g9_38
-	h9 := f0g9 + f1g8 + f2g7 + f3g6 + f4g5 + f5g4 + f6g3 + f7g2 + f8g1 + f9g0
-	var carry [10]int64
-
-	// |h0| <= (1.1*1.1*2^52*(1+19+19+19+19)+1.1*1.1*2^50*(38+38+38+38+38))
-	//   i.e. |h0| <= 1.2*2^59; narrower ranges for h2, h4, h6, h8
-	// |h1| <= (1.1*1.1*2^51*(1+1+19+19+19+19+19+19+19+19))
-	//   i.e. |h1| <= 1.5*2^58; narrower ranges for h3, h5, h7, h9
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	// |h0| <= 2^25
-	// |h4| <= 2^25
-	// |h1| <= 1.51*2^58
-	// |h5| <= 1.51*2^58
-
-	carry[1] = (h1 + (1 << 24)) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[5] = (h5 + (1 << 24)) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-	// |h1| <= 2^24; from now on fits into int32
-	// |h5| <= 2^24; from now on fits into int32
-	// |h2| <= 1.21*2^59
-	// |h6| <= 1.21*2^59
-
-	carry[2] = (h2 + (1 << 25)) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[6] = (h6 + (1 << 25)) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-	// |h2| <= 2^25; from now on fits into int32 unchanged
-	// |h6| <= 2^25; from now on fits into int32 unchanged
-	// |h3| <= 1.51*2^58
-	// |h7| <= 1.51*2^58
-
-	carry[3] = (h3 + (1 << 24)) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[7] = (h7 + (1 << 24)) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-	// |h3| <= 2^24; from now on fits into int32 unchanged
-	// |h7| <= 2^24; from now on fits into int32 unchanged
-	// |h4| <= 1.52*2^33
-	// |h8| <= 1.52*2^33
-
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[8] = (h8 + (1 << 25)) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-	// |h4| <= 2^25; from now on fits into int32 unchanged
-	// |h8| <= 2^25; from now on fits into int32 unchanged
-	// |h5| <= 1.01*2^24
-	// |h9| <= 1.51*2^58
-
-	carry[9] = (h9 + (1 << 24)) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-	// |h9| <= 2^24; from now on fits into int32 unchanged
-	// |h0| <= 1.8*2^37
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	// |h0| <= 2^25; from now on fits into int32 unchanged
-	// |h1| <= 1.01*2^24
-
-	h[0] = int32(h0)
-	h[1] = int32(h1)
-	h[2] = int32(h2)
-	h[3] = int32(h3)
-	h[4] = int32(h4)
-	h[5] = int32(h5)
-	h[6] = int32(h6)
-	h[7] = int32(h7)
-	h[8] = int32(h8)
-	h[9] = int32(h9)
-}
-
-// feSquare calculates h = f*f. Can overlap h with f.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-func feSquare(h, f *fieldElement) {
-	f0 := f[0]
-	f1 := f[1]
-	f2 := f[2]
-	f3 := f[3]
-	f4 := f[4]
-	f5 := f[5]
-	f6 := f[6]
-	f7 := f[7]
-	f8 := f[8]
-	f9 := f[9]
-	f0_2 := 2 * f0
-	f1_2 := 2 * f1
-	f2_2 := 2 * f2
-	f3_2 := 2 * f3
-	f4_2 := 2 * f4
-	f5_2 := 2 * f5
-	f6_2 := 2 * f6
-	f7_2 := 2 * f7
-	f5_38 := 38 * f5 // 1.31*2^30
-	f6_19 := 19 * f6 // 1.31*2^30
-	f7_38 := 38 * f7 // 1.31*2^30
-	f8_19 := 19 * f8 // 1.31*2^30
-	f9_38 := 38 * f9 // 1.31*2^30
-	f0f0 := int64(f0) * int64(f0)
-	f0f1_2 := int64(f0_2) * int64(f1)
-	f0f2_2 := int64(f0_2) * int64(f2)
-	f0f3_2 := int64(f0_2) * int64(f3)
-	f0f4_2 := int64(f0_2) * int64(f4)
-	f0f5_2 := int64(f0_2) * int64(f5)
-	f0f6_2 := int64(f0_2) * int64(f6)
-	f0f7_2 := int64(f0_2) * int64(f7)
-	f0f8_2 := int64(f0_2) * int64(f8)
-	f0f9_2 := int64(f0_2) * int64(f9)
-	f1f1_2 := int64(f1_2) * int64(f1)
-	f1f2_2 := int64(f1_2) * int64(f2)
-	f1f3_4 := int64(f1_2) * int64(f3_2)
-	f1f4_2 := int64(f1_2) * int64(f4)
-	f1f5_4 := int64(f1_2) * int64(f5_2)
-	f1f6_2 := int64(f1_2) * int64(f6)
-	f1f7_4 := int64(f1_2) * int64(f7_2)
-	f1f8_2 := int64(f1_2) * int64(f8)
-	f1f9_76 := int64(f1_2) * int64(f9_38)
-	f2f2 := int64(f2) * int64(f2)
-	f2f3_2 := int64(f2_2) * int64(f3)
-	f2f4_2 := int64(f2_2) * int64(f4)
-	f2f5_2 := int64(f2_2) * int64(f5)
-	f2f6_2 := int64(f2_2) * int64(f6)
-	f2f7_2 := int64(f2_2) * int64(f7)
-	f2f8_38 := int64(f2_2) * int64(f8_19)
-	f2f9_38 := int64(f2) * int64(f9_38)
-	f3f3_2 := int64(f3_2) * int64(f3)
-	f3f4_2 := int64(f3_2) * int64(f4)
-	f3f5_4 := int64(f3_2) * int64(f5_2)
-	f3f6_2 := int64(f3_2) * int64(f6)
-	f3f7_76 := int64(f3_2) * int64(f7_38)
-	f3f8_38 := int64(f3_2) * int64(f8_19)
-	f3f9_76 := int64(f3_2) * int64(f9_38)
-	f4f4 := int64(f4) * int64(f4)
-	f4f5_2 := int64(f4_2) * int64(f5)
-	f4f6_38 := int64(f4_2) * int64(f6_19)
-	f4f7_38 := int64(f4) * int64(f7_38)
-	f4f8_38 := int64(f4_2) * int64(f8_19)
-	f4f9_38 := int64(f4) * int64(f9_38)
-	f5f5_38 := int64(f5) * int64(f5_38)
-	f5f6_38 := int64(f5_2) * int64(f6_19)
-	f5f7_76 := int64(f5_2) * int64(f7_38)
-	f5f8_38 := int64(f5_2) * int64(f8_19)
-	f5f9_76 := int64(f5_2) * int64(f9_38)
-	f6f6_19 := int64(f6) * int64(f6_19)
-	f6f7_38 := int64(f6) * int64(f7_38)
-	f6f8_38 := int64(f6_2) * int64(f8_19)
-	f6f9_38 := int64(f6) * int64(f9_38)
-	f7f7_38 := int64(f7) * int64(f7_38)
-	f7f8_38 := int64(f7_2) * int64(f8_19)
-	f7f9_76 := int64(f7_2) * int64(f9_38)
-	f8f8_19 := int64(f8) * int64(f8_19)
-	f8f9_38 := int64(f8) * int64(f9_38)
-	f9f9_38 := int64(f9) * int64(f9_38)
-	h0 := f0f0 + f1f9_76 + f2f8_38 + f3f7_76 + f4f6_38 + f5f5_38
-	h1 := f0f1_2 + f2f9_38 + f3f8_38 + f4f7_38 + f5f6_38
-	h2 := f0f2_2 + f1f1_2 + f3f9_76 + f4f8_38 + f5f7_76 + f6f6_19
-	h3 := f0f3_2 + f1f2_2 + f4f9_38 + f5f8_38 + f6f7_38
-	h4 := f0f4_2 + f1f3_4 + f2f2 + f5f9_76 + f6f8_38 + f7f7_38
-	h5 := f0f5_2 + f1f4_2 + f2f3_2 + f6f9_38 + f7f8_38
-	h6 := f0f6_2 + f1f5_4 + f2f4_2 + f3f3_2 + f7f9_76 + f8f8_19
-	h7 := f0f7_2 + f1f6_2 + f2f5_2 + f3f4_2 + f8f9_38
-	h8 := f0f8_2 + f1f7_4 + f2f6_2 + f3f5_4 + f4f4 + f9f9_38
-	h9 := f0f9_2 + f1f8_2 + f2f7_2 + f3f6_2 + f4f5_2
-	var carry [10]int64
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-
-	carry[1] = (h1 + (1 << 24)) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[5] = (h5 + (1 << 24)) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-
-	carry[2] = (h2 + (1 << 25)) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[6] = (h6 + (1 << 25)) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-
-	carry[3] = (h3 + (1 << 24)) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[7] = (h7 + (1 << 24)) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[8] = (h8 + (1 << 25)) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-
-	carry[9] = (h9 + (1 << 24)) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-
-	h[0] = int32(h0)
-	h[1] = int32(h1)
-	h[2] = int32(h2)
-	h[3] = int32(h3)
-	h[4] = int32(h4)
-	h[5] = int32(h5)
-	h[6] = int32(h6)
-	h[7] = int32(h7)
-	h[8] = int32(h8)
-	h[9] = int32(h9)
-}
-
-// feMul121666 calculates h = f * 121666. Can overlap h with f.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-func feMul121666(h, f *fieldElement) {
-	h0 := int64(f[0]) * 121666
-	h1 := int64(f[1]) * 121666
-	h2 := int64(f[2]) * 121666
-	h3 := int64(f[3]) * 121666
-	h4 := int64(f[4]) * 121666
-	h5 := int64(f[5]) * 121666
-	h6 := int64(f[6]) * 121666
-	h7 := int64(f[7]) * 121666
-	h8 := int64(f[8]) * 121666
-	h9 := int64(f[9]) * 121666
-	var carry [10]int64
-
-	carry[9] = (h9 + (1 << 24)) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-	carry[1] = (h1 + (1 << 24)) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[3] = (h3 + (1 << 24)) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[5] = (h5 + (1 << 24)) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-	carry[7] = (h7 + (1 << 24)) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[2] = (h2 + (1 << 25)) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[6] = (h6 + (1 << 25)) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-	carry[8] = (h8 + (1 << 25)) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-
-	h[0] = int32(h0)
-	h[1] = int32(h1)
-	h[2] = int32(h2)
-	h[3] = int32(h3)
-	h[4] = int32(h4)
-	h[5] = int32(h5)
-	h[6] = int32(h6)
-	h[7] = int32(h7)
-	h[8] = int32(h8)
-	h[9] = int32(h9)
-}
-
-// feInvert sets out = z^-1.
-func feInvert(out, z *fieldElement) {
-	var t0, t1, t2, t3 fieldElement
-	var i int
-
-	feSquare(&t0, z)
-	for i = 1; i < 1; i++ {
-		feSquare(&t0, &t0)
-	}
-	feSquare(&t1, &t0)
-	for i = 1; i < 2; i++ {
-		feSquare(&t1, &t1)
-	}
-	feMul(&t1, z, &t1)
-	feMul(&t0, &t0, &t1)
-	feSquare(&t2, &t0)
-	for i = 1; i < 1; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t1, &t2)
-	feSquare(&t2, &t1)
-	for i = 1; i < 5; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t2, &t1)
-	feSquare(&t2, &t1)
-	for i = 1; i < 10; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t2, &t2, &t1)
-	feSquare(&t3, &t2)
-	for i = 1; i < 20; i++ {
-		feSquare(&t3, &t3)
-	}
-	feMul(&t2, &t3, &t2)
-	feSquare(&t2, &t2)
-	for i = 1; i < 10; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t2, &t1)
-	feSquare(&t2, &t1)
-	for i = 1; i < 50; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t2, &t2, &t1)
-	feSquare(&t3, &t2)
-	for i = 1; i < 100; i++ {
-		feSquare(&t3, &t3)
-	}
-	feMul(&t2, &t3, &t2)
-	feSquare(&t2, &t2)
-	for i = 1; i < 50; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t2, &t1)
-	feSquare(&t1, &t1)
-	for i = 1; i < 5; i++ {
-		feSquare(&t1, &t1)
-	}
-	feMul(out, &t1, &t0)
-}
-
-func 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)
-}
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/doc.go b/pkg/metadata/vendor/golang.org/x/crypto/curve25519/doc.go
deleted file mode 100644
index da9b10d9c..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/doc.go
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package curve25519 provides an implementation of scalar multiplication on
-// 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.
-var basePoint = [32]byte{9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
-
-// ScalarMult sets dst to the product in*base where dst and base are the x
-// coordinates of group points and all values are in little-endian form.
-func ScalarMult(dst, in, base *[32]byte) {
-	scalarMult(dst, in, base)
-}
-
-// ScalarBaseMult sets dst to the product in*base where dst and base are the x
-// coordinates of group points, base is the standard generator and all values
-// are in little-endian form.
-func ScalarBaseMult(dst, in *[32]byte) {
-	ScalarMult(dst, in, &basePoint)
-}
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/freeze_amd64.s b/pkg/metadata/vendor/golang.org/x/crypto/curve25519/freeze_amd64.s
deleted file mode 100644
index 390816106..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/freeze_amd64.s
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// 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
-
-	MOVQ 0(DI),SI
-	MOVQ 8(DI),DX
-	MOVQ 16(DI),CX
-	MOVQ 24(DI),R8
-	MOVQ 32(DI),R9
-	MOVQ $REDMASK51,AX
-	MOVQ AX,R10
-	SUBQ $18,R10
-	MOVQ $3,R11
-REDUCELOOP:
-	MOVQ SI,R12
-	SHRQ $51,R12
-	ANDQ AX,SI
-	ADDQ R12,DX
-	MOVQ DX,R12
-	SHRQ $51,R12
-	ANDQ AX,DX
-	ADDQ R12,CX
-	MOVQ CX,R12
-	SHRQ $51,R12
-	ANDQ AX,CX
-	ADDQ R12,R8
-	MOVQ R8,R12
-	SHRQ $51,R12
-	ANDQ AX,R8
-	ADDQ R12,R9
-	MOVQ R9,R12
-	SHRQ $51,R12
-	ANDQ AX,R9
-	IMUL3Q $19,R12,R12
-	ADDQ R12,SI
-	SUBQ $1,R11
-	JA REDUCELOOP
-	MOVQ $1,R12
-	CMPQ R10,SI
-	CMOVQLT R11,R12
-	CMPQ AX,DX
-	CMOVQNE R11,R12
-	CMPQ AX,CX
-	CMOVQNE R11,R12
-	CMPQ AX,R8
-	CMOVQNE R11,R12
-	CMPQ AX,R9
-	CMOVQNE R11,R12
-	NEGQ R12
-	ANDQ R12,AX
-	ANDQ R12,R10
-	SUBQ R10,SI
-	SUBQ AX,DX
-	SUBQ AX,CX
-	SUBQ AX,R8
-	SUBQ AX,R9
-	MOVQ SI,0(DI)
-	MOVQ DX,8(DI)
-	MOVQ CX,16(DI)
-	MOVQ R8,24(DI)
-	MOVQ R9,32(DI)
-	RET
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s b/pkg/metadata/vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s
deleted file mode 100644
index 9e9040b25..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s
+++ /dev/null
@@ -1,1377 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// 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
-
-	MOVQ 40(DI),SI
-	MOVQ 48(DI),DX
-	MOVQ 56(DI),CX
-	MOVQ 64(DI),R8
-	MOVQ 72(DI),R9
-	MOVQ SI,AX
-	MOVQ DX,R10
-	MOVQ CX,R11
-	MOVQ R8,R12
-	MOVQ R9,R13
-	ADDQ ·_2P0(SB),AX
-	ADDQ ·_2P1234(SB),R10
-	ADDQ ·_2P1234(SB),R11
-	ADDQ ·_2P1234(SB),R12
-	ADDQ ·_2P1234(SB),R13
-	ADDQ 80(DI),SI
-	ADDQ 88(DI),DX
-	ADDQ 96(DI),CX
-	ADDQ 104(DI),R8
-	ADDQ 112(DI),R9
-	SUBQ 80(DI),AX
-	SUBQ 88(DI),R10
-	SUBQ 96(DI),R11
-	SUBQ 104(DI),R12
-	SUBQ 112(DI),R13
-	MOVQ SI,0(SP)
-	MOVQ DX,8(SP)
-	MOVQ CX,16(SP)
-	MOVQ R8,24(SP)
-	MOVQ R9,32(SP)
-	MOVQ AX,40(SP)
-	MOVQ R10,48(SP)
-	MOVQ R11,56(SP)
-	MOVQ R12,64(SP)
-	MOVQ R13,72(SP)
-	MOVQ 40(SP),AX
-	MULQ 40(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 40(SP),AX
-	SHLQ $1,AX
-	MULQ 48(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 40(SP),AX
-	SHLQ $1,AX
-	MULQ 56(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 40(SP),AX
-	SHLQ $1,AX
-	MULQ 64(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 40(SP),AX
-	SHLQ $1,AX
-	MULQ 72(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 48(SP),AX
-	MULQ 48(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 48(SP),AX
-	SHLQ $1,AX
-	MULQ 56(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 48(SP),AX
-	SHLQ $1,AX
-	MULQ 64(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 48(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 56(SP),AX
-	MULQ 56(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 56(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 64(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 56(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 64(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 64(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 64(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 72(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	ANDQ DX,SI
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ADDQ R10,CX
-	ANDQ DX,R8
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ADDQ R12,CX
-	ANDQ DX,R9
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ADDQ R14,CX
-	ANDQ DX,AX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,80(SP)
-	MOVQ R8,88(SP)
-	MOVQ R9,96(SP)
-	MOVQ AX,104(SP)
-	MOVQ R10,112(SP)
-	MOVQ 0(SP),AX
-	MULQ 0(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 0(SP),AX
-	SHLQ $1,AX
-	MULQ 8(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 0(SP),AX
-	SHLQ $1,AX
-	MULQ 16(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 0(SP),AX
-	SHLQ $1,AX
-	MULQ 24(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 0(SP),AX
-	SHLQ $1,AX
-	MULQ 32(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 8(SP),AX
-	MULQ 8(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SP),AX
-	SHLQ $1,AX
-	MULQ 16(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 8(SP),AX
-	SHLQ $1,AX
-	MULQ 24(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 8(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 16(SP),AX
-	MULQ 16(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 16(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 24(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 16(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 24(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 24(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 24(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 32(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	ANDQ DX,SI
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ADDQ R10,CX
-	ANDQ DX,R8
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ADDQ R12,CX
-	ANDQ DX,R9
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ADDQ R14,CX
-	ANDQ DX,AX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,120(SP)
-	MOVQ R8,128(SP)
-	MOVQ R9,136(SP)
-	MOVQ AX,144(SP)
-	MOVQ R10,152(SP)
-	MOVQ SI,SI
-	MOVQ R8,DX
-	MOVQ R9,CX
-	MOVQ AX,R8
-	MOVQ R10,R9
-	ADDQ ·_2P0(SB),SI
-	ADDQ ·_2P1234(SB),DX
-	ADDQ ·_2P1234(SB),CX
-	ADDQ ·_2P1234(SB),R8
-	ADDQ ·_2P1234(SB),R9
-	SUBQ 80(SP),SI
-	SUBQ 88(SP),DX
-	SUBQ 96(SP),CX
-	SUBQ 104(SP),R8
-	SUBQ 112(SP),R9
-	MOVQ SI,160(SP)
-	MOVQ DX,168(SP)
-	MOVQ CX,176(SP)
-	MOVQ R8,184(SP)
-	MOVQ R9,192(SP)
-	MOVQ 120(DI),SI
-	MOVQ 128(DI),DX
-	MOVQ 136(DI),CX
-	MOVQ 144(DI),R8
-	MOVQ 152(DI),R9
-	MOVQ SI,AX
-	MOVQ DX,R10
-	MOVQ CX,R11
-	MOVQ R8,R12
-	MOVQ R9,R13
-	ADDQ ·_2P0(SB),AX
-	ADDQ ·_2P1234(SB),R10
-	ADDQ ·_2P1234(SB),R11
-	ADDQ ·_2P1234(SB),R12
-	ADDQ ·_2P1234(SB),R13
-	ADDQ 160(DI),SI
-	ADDQ 168(DI),DX
-	ADDQ 176(DI),CX
-	ADDQ 184(DI),R8
-	ADDQ 192(DI),R9
-	SUBQ 160(DI),AX
-	SUBQ 168(DI),R10
-	SUBQ 176(DI),R11
-	SUBQ 184(DI),R12
-	SUBQ 192(DI),R13
-	MOVQ SI,200(SP)
-	MOVQ DX,208(SP)
-	MOVQ CX,216(SP)
-	MOVQ R8,224(SP)
-	MOVQ R9,232(SP)
-	MOVQ AX,240(SP)
-	MOVQ R10,248(SP)
-	MOVQ R11,256(SP)
-	MOVQ R12,264(SP)
-	MOVQ R13,272(SP)
-	MOVQ 224(SP),SI
-	IMUL3Q $19,SI,AX
-	MOVQ AX,280(SP)
-	MULQ 56(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 232(SP),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,288(SP)
-	MULQ 48(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 200(SP),AX
-	MULQ 40(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 200(SP),AX
-	MULQ 48(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 200(SP),AX
-	MULQ 56(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 200(SP),AX
-	MULQ 64(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 200(SP),AX
-	MULQ 72(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 208(SP),AX
-	MULQ 40(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 208(SP),AX
-	MULQ 48(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 208(SP),AX
-	MULQ 56(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 208(SP),AX
-	MULQ 64(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 208(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 216(SP),AX
-	MULQ 40(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 216(SP),AX
-	MULQ 48(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 216(SP),AX
-	MULQ 56(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 216(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 64(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 216(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 224(SP),AX
-	MULQ 40(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 224(SP),AX
-	MULQ 48(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 280(SP),AX
-	MULQ 64(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 280(SP),AX
-	MULQ 72(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 232(SP),AX
-	MULQ 40(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 288(SP),AX
-	MULQ 56(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 288(SP),AX
-	MULQ 64(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 288(SP),AX
-	MULQ 72(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ANDQ DX,SI
-	ADDQ R10,CX
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ANDQ DX,R8
-	ADDQ R12,CX
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ANDQ DX,R9
-	ADDQ R14,CX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	ANDQ DX,AX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,40(SP)
-	MOVQ R8,48(SP)
-	MOVQ R9,56(SP)
-	MOVQ AX,64(SP)
-	MOVQ R10,72(SP)
-	MOVQ 264(SP),SI
-	IMUL3Q $19,SI,AX
-	MOVQ AX,200(SP)
-	MULQ 16(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 272(SP),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,208(SP)
-	MULQ 8(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 240(SP),AX
-	MULQ 0(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 240(SP),AX
-	MULQ 8(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 240(SP),AX
-	MULQ 16(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 240(SP),AX
-	MULQ 24(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 240(SP),AX
-	MULQ 32(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 248(SP),AX
-	MULQ 0(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 248(SP),AX
-	MULQ 8(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 248(SP),AX
-	MULQ 16(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 248(SP),AX
-	MULQ 24(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 248(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 256(SP),AX
-	MULQ 0(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 256(SP),AX
-	MULQ 8(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 256(SP),AX
-	MULQ 16(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 256(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 24(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 256(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 264(SP),AX
-	MULQ 0(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 264(SP),AX
-	MULQ 8(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 200(SP),AX
-	MULQ 24(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 200(SP),AX
-	MULQ 32(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 272(SP),AX
-	MULQ 0(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 208(SP),AX
-	MULQ 16(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 208(SP),AX
-	MULQ 24(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 208(SP),AX
-	MULQ 32(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ANDQ DX,SI
-	ADDQ R10,CX
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ANDQ DX,R8
-	ADDQ R12,CX
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ANDQ DX,R9
-	ADDQ R14,CX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	ANDQ DX,AX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,DX
-	MOVQ R8,CX
-	MOVQ R9,R11
-	MOVQ AX,R12
-	MOVQ R10,R13
-	ADDQ ·_2P0(SB),DX
-	ADDQ ·_2P1234(SB),CX
-	ADDQ ·_2P1234(SB),R11
-	ADDQ ·_2P1234(SB),R12
-	ADDQ ·_2P1234(SB),R13
-	ADDQ 40(SP),SI
-	ADDQ 48(SP),R8
-	ADDQ 56(SP),R9
-	ADDQ 64(SP),AX
-	ADDQ 72(SP),R10
-	SUBQ 40(SP),DX
-	SUBQ 48(SP),CX
-	SUBQ 56(SP),R11
-	SUBQ 64(SP),R12
-	SUBQ 72(SP),R13
-	MOVQ SI,120(DI)
-	MOVQ R8,128(DI)
-	MOVQ R9,136(DI)
-	MOVQ AX,144(DI)
-	MOVQ R10,152(DI)
-	MOVQ DX,160(DI)
-	MOVQ CX,168(DI)
-	MOVQ R11,176(DI)
-	MOVQ R12,184(DI)
-	MOVQ R13,192(DI)
-	MOVQ 120(DI),AX
-	MULQ 120(DI)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 120(DI),AX
-	SHLQ $1,AX
-	MULQ 128(DI)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 120(DI),AX
-	SHLQ $1,AX
-	MULQ 136(DI)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 120(DI),AX
-	SHLQ $1,AX
-	MULQ 144(DI)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 120(DI),AX
-	SHLQ $1,AX
-	MULQ 152(DI)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 128(DI),AX
-	MULQ 128(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 128(DI),AX
-	SHLQ $1,AX
-	MULQ 136(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 128(DI),AX
-	SHLQ $1,AX
-	MULQ 144(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 128(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 152(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 136(DI),AX
-	MULQ 136(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 136(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 144(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 136(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 152(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 144(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 144(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 144(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 152(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 152(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 152(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	ANDQ DX,SI
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ADDQ R10,CX
-	ANDQ DX,R8
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ADDQ R12,CX
-	ANDQ DX,R9
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ADDQ R14,CX
-	ANDQ DX,AX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,120(DI)
-	MOVQ R8,128(DI)
-	MOVQ R9,136(DI)
-	MOVQ AX,144(DI)
-	MOVQ R10,152(DI)
-	MOVQ 160(DI),AX
-	MULQ 160(DI)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 160(DI),AX
-	SHLQ $1,AX
-	MULQ 168(DI)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 160(DI),AX
-	SHLQ $1,AX
-	MULQ 176(DI)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 160(DI),AX
-	SHLQ $1,AX
-	MULQ 184(DI)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 160(DI),AX
-	SHLQ $1,AX
-	MULQ 192(DI)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 168(DI),AX
-	MULQ 168(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 168(DI),AX
-	SHLQ $1,AX
-	MULQ 176(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 168(DI),AX
-	SHLQ $1,AX
-	MULQ 184(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 168(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 192(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 176(DI),AX
-	MULQ 176(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 176(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 184(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 176(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 192(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 184(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 184(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 184(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 192(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 192(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 192(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	ANDQ DX,SI
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ADDQ R10,CX
-	ANDQ DX,R8
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ADDQ R12,CX
-	ANDQ DX,R9
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ADDQ R14,CX
-	ANDQ DX,AX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,160(DI)
-	MOVQ R8,168(DI)
-	MOVQ R9,176(DI)
-	MOVQ AX,184(DI)
-	MOVQ R10,192(DI)
-	MOVQ 184(DI),SI
-	IMUL3Q $19,SI,AX
-	MOVQ AX,0(SP)
-	MULQ 16(DI)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 192(DI),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,8(SP)
-	MULQ 8(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 160(DI),AX
-	MULQ 0(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 160(DI),AX
-	MULQ 8(DI)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 160(DI),AX
-	MULQ 16(DI)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 160(DI),AX
-	MULQ 24(DI)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 160(DI),AX
-	MULQ 32(DI)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 168(DI),AX
-	MULQ 0(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 168(DI),AX
-	MULQ 8(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 168(DI),AX
-	MULQ 16(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 168(DI),AX
-	MULQ 24(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 168(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 176(DI),AX
-	MULQ 0(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 176(DI),AX
-	MULQ 8(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 176(DI),AX
-	MULQ 16(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 176(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 24(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 176(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 184(DI),AX
-	MULQ 0(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 184(DI),AX
-	MULQ 8(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 0(SP),AX
-	MULQ 24(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 0(SP),AX
-	MULQ 32(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 192(DI),AX
-	MULQ 0(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 8(SP),AX
-	MULQ 16(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 8(SP),AX
-	MULQ 24(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SP),AX
-	MULQ 32(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ANDQ DX,SI
-	ADDQ R10,CX
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ANDQ DX,R8
-	ADDQ R12,CX
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ANDQ DX,R9
-	ADDQ R14,CX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	ANDQ DX,AX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,160(DI)
-	MOVQ R8,168(DI)
-	MOVQ R9,176(DI)
-	MOVQ AX,184(DI)
-	MOVQ R10,192(DI)
-	MOVQ 144(SP),SI
-	IMUL3Q $19,SI,AX
-	MOVQ AX,0(SP)
-	MULQ 96(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 152(SP),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,8(SP)
-	MULQ 88(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 120(SP),AX
-	MULQ 80(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 120(SP),AX
-	MULQ 88(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 120(SP),AX
-	MULQ 96(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 120(SP),AX
-	MULQ 104(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 120(SP),AX
-	MULQ 112(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 128(SP),AX
-	MULQ 80(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 128(SP),AX
-	MULQ 88(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 128(SP),AX
-	MULQ 96(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 128(SP),AX
-	MULQ 104(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 128(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 112(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 136(SP),AX
-	MULQ 80(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 136(SP),AX
-	MULQ 88(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 136(SP),AX
-	MULQ 96(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 136(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 104(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 136(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 112(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 144(SP),AX
-	MULQ 80(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 144(SP),AX
-	MULQ 88(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 0(SP),AX
-	MULQ 104(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 0(SP),AX
-	MULQ 112(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 152(SP),AX
-	MULQ 80(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 8(SP),AX
-	MULQ 96(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 8(SP),AX
-	MULQ 104(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SP),AX
-	MULQ 112(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ANDQ DX,SI
-	ADDQ R10,CX
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ANDQ DX,R8
-	ADDQ R12,CX
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ANDQ DX,R9
-	ADDQ R14,CX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	ANDQ DX,AX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,40(DI)
-	MOVQ R8,48(DI)
-	MOVQ R9,56(DI)
-	MOVQ AX,64(DI)
-	MOVQ R10,72(DI)
-	MOVQ 160(SP),AX
-	MULQ ·_121666_213(SB)
-	SHRQ $13,AX
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 168(SP),AX
-	MULQ ·_121666_213(SB)
-	SHRQ $13,AX
-	ADDQ AX,CX
-	MOVQ DX,R8
-	MOVQ 176(SP),AX
-	MULQ ·_121666_213(SB)
-	SHRQ $13,AX
-	ADDQ AX,R8
-	MOVQ DX,R9
-	MOVQ 184(SP),AX
-	MULQ ·_121666_213(SB)
-	SHRQ $13,AX
-	ADDQ AX,R9
-	MOVQ DX,R10
-	MOVQ 192(SP),AX
-	MULQ ·_121666_213(SB)
-	SHRQ $13,AX
-	ADDQ AX,R10
-	IMUL3Q $19,DX,DX
-	ADDQ DX,SI
-	ADDQ 80(SP),SI
-	ADDQ 88(SP),CX
-	ADDQ 96(SP),R8
-	ADDQ 104(SP),R9
-	ADDQ 112(SP),R10
-	MOVQ SI,80(DI)
-	MOVQ CX,88(DI)
-	MOVQ R8,96(DI)
-	MOVQ R9,104(DI)
-	MOVQ R10,112(DI)
-	MOVQ 104(DI),SI
-	IMUL3Q $19,SI,AX
-	MOVQ AX,0(SP)
-	MULQ 176(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 112(DI),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,8(SP)
-	MULQ 168(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 80(DI),AX
-	MULQ 160(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 80(DI),AX
-	MULQ 168(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 80(DI),AX
-	MULQ 176(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 80(DI),AX
-	MULQ 184(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 80(DI),AX
-	MULQ 192(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 88(DI),AX
-	MULQ 160(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 88(DI),AX
-	MULQ 168(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 88(DI),AX
-	MULQ 176(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 88(DI),AX
-	MULQ 184(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 88(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 192(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 96(DI),AX
-	MULQ 160(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 96(DI),AX
-	MULQ 168(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 96(DI),AX
-	MULQ 176(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 96(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 184(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 96(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 192(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 104(DI),AX
-	MULQ 160(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 104(DI),AX
-	MULQ 168(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 0(SP),AX
-	MULQ 184(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 0(SP),AX
-	MULQ 192(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 112(DI),AX
-	MULQ 160(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 8(SP),AX
-	MULQ 176(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 8(SP),AX
-	MULQ 184(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SP),AX
-	MULQ 192(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ANDQ DX,SI
-	ADDQ R10,CX
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ANDQ DX,R8
-	ADDQ R12,CX
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ANDQ DX,R9
-	ADDQ R14,CX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	ANDQ DX,AX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,80(DI)
-	MOVQ R8,88(DI)
-	MOVQ R9,96(DI)
-	MOVQ AX,104(DI)
-	MOVQ R10,112(DI)
-	RET
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/mont25519_amd64.go b/pkg/metadata/vendor/golang.org/x/crypto/curve25519/mont25519_amd64.go
deleted file mode 100644
index 5822bd533..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/mont25519_amd64.go
+++ /dev/null
@@ -1,240 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-package curve25519
-
-// These functions are implemented in the .s files. The names of the functions
-// in the rest of the file are also taken from the SUPERCOP sources to help
-// people following along.
-
-//go:noescape
-
-func cswap(inout *[5]uint64, v uint64)
-
-//go:noescape
-
-func ladderstep(inout *[5][5]uint64)
-
-//go:noescape
-
-func freeze(inout *[5]uint64)
-
-//go:noescape
-
-func mul(dest, a, b *[5]uint64)
-
-//go:noescape
-
-func square(out, in *[5]uint64)
-
-// mladder uses a Montgomery ladder to calculate (xr/zr) *= s.
-func mladder(xr, zr *[5]uint64, s *[32]byte) {
-	var work [5][5]uint64
-
-	work[0] = *xr
-	setint(&work[1], 1)
-	setint(&work[2], 0)
-	work[3] = *xr
-	setint(&work[4], 1)
-
-	j := uint(6)
-	var prevbit byte
-
-	for i := 31; i >= 0; i-- {
-		for j < 8 {
-			bit := ((*s)[i] >> j) & 1
-			swap := bit ^ prevbit
-			prevbit = bit
-			cswap(&work[1], uint64(swap))
-			ladderstep(&work)
-			j--
-		}
-		j = 7
-	}
-
-	*xr = work[1]
-	*zr = work[2]
-}
-
-func scalarMult(out, in, base *[32]byte) {
-	var e [32]byte
-	copy(e[:], (*in)[:])
-	e[0] &= 248
-	e[31] &= 127
-	e[31] |= 64
-
-	var t, z [5]uint64
-	unpack(&t, base)
-	mladder(&t, &z, &e)
-	invert(&z, &z)
-	mul(&t, &t, &z)
-	pack(out, &t)
-}
-
-func setint(r *[5]uint64, v uint64) {
-	r[0] = v
-	r[1] = 0
-	r[2] = 0
-	r[3] = 0
-	r[4] = 0
-}
-
-// unpack sets r = x where r consists of 5, 51-bit limbs in little-endian
-// order.
-func unpack(r *[5]uint64, x *[32]byte) {
-	r[0] = uint64(x[0]) |
-		uint64(x[1])<<8 |
-		uint64(x[2])<<16 |
-		uint64(x[3])<<24 |
-		uint64(x[4])<<32 |
-		uint64(x[5])<<40 |
-		uint64(x[6]&7)<<48
-
-	r[1] = uint64(x[6])>>3 |
-		uint64(x[7])<<5 |
-		uint64(x[8])<<13 |
-		uint64(x[9])<<21 |
-		uint64(x[10])<<29 |
-		uint64(x[11])<<37 |
-		uint64(x[12]&63)<<45
-
-	r[2] = uint64(x[12])>>6 |
-		uint64(x[13])<<2 |
-		uint64(x[14])<<10 |
-		uint64(x[15])<<18 |
-		uint64(x[16])<<26 |
-		uint64(x[17])<<34 |
-		uint64(x[18])<<42 |
-		uint64(x[19]&1)<<50
-
-	r[3] = uint64(x[19])>>1 |
-		uint64(x[20])<<7 |
-		uint64(x[21])<<15 |
-		uint64(x[22])<<23 |
-		uint64(x[23])<<31 |
-		uint64(x[24])<<39 |
-		uint64(x[25]&15)<<47
-
-	r[4] = uint64(x[25])>>4 |
-		uint64(x[26])<<4 |
-		uint64(x[27])<<12 |
-		uint64(x[28])<<20 |
-		uint64(x[29])<<28 |
-		uint64(x[30])<<36 |
-		uint64(x[31]&127)<<44
-}
-
-// pack sets out = x where out is the usual, little-endian form of the 5,
-// 51-bit limbs in x.
-func pack(out *[32]byte, x *[5]uint64) {
-	t := *x
-	freeze(&t)
-
-	out[0] = byte(t[0])
-	out[1] = byte(t[0] >> 8)
-	out[2] = byte(t[0] >> 16)
-	out[3] = byte(t[0] >> 24)
-	out[4] = byte(t[0] >> 32)
-	out[5] = byte(t[0] >> 40)
-	out[6] = byte(t[0] >> 48)
-
-	out[6] ^= byte(t[1]<<3) & 0xf8
-	out[7] = byte(t[1] >> 5)
-	out[8] = byte(t[1] >> 13)
-	out[9] = byte(t[1] >> 21)
-	out[10] = byte(t[1] >> 29)
-	out[11] = byte(t[1] >> 37)
-	out[12] = byte(t[1] >> 45)
-
-	out[12] ^= byte(t[2]<<6) & 0xc0
-	out[13] = byte(t[2] >> 2)
-	out[14] = byte(t[2] >> 10)
-	out[15] = byte(t[2] >> 18)
-	out[16] = byte(t[2] >> 26)
-	out[17] = byte(t[2] >> 34)
-	out[18] = byte(t[2] >> 42)
-	out[19] = byte(t[2] >> 50)
-
-	out[19] ^= byte(t[3]<<1) & 0xfe
-	out[20] = byte(t[3] >> 7)
-	out[21] = byte(t[3] >> 15)
-	out[22] = byte(t[3] >> 23)
-	out[23] = byte(t[3] >> 31)
-	out[24] = byte(t[3] >> 39)
-	out[25] = byte(t[3] >> 47)
-
-	out[25] ^= byte(t[4]<<4) & 0xf0
-	out[26] = byte(t[4] >> 4)
-	out[27] = byte(t[4] >> 12)
-	out[28] = byte(t[4] >> 20)
-	out[29] = byte(t[4] >> 28)
-	out[30] = byte(t[4] >> 36)
-	out[31] = byte(t[4] >> 44)
-}
-
-// invert calculates r = x^-1 mod p using Fermat's little theorem.
-func invert(r *[5]uint64, x *[5]uint64) {
-	var z2, z9, z11, z2_5_0, z2_10_0, z2_20_0, z2_50_0, z2_100_0, t [5]uint64
-
-	square(&z2, x)        /* 2 */
-	square(&t, &z2)       /* 4 */
-	square(&t, &t)        /* 8 */
-	mul(&z9, &t, x)       /* 9 */
-	mul(&z11, &z9, &z2)   /* 11 */
-	square(&t, &z11)      /* 22 */
-	mul(&z2_5_0, &t, &z9) /* 2^5 - 2^0 = 31 */
-
-	square(&t, &z2_5_0)      /* 2^6 - 2^1 */
-	for i := 1; i < 5; i++ { /* 2^20 - 2^10 */
-		square(&t, &t)
-	}
-	mul(&z2_10_0, &t, &z2_5_0) /* 2^10 - 2^0 */
-
-	square(&t, &z2_10_0)      /* 2^11 - 2^1 */
-	for i := 1; i < 10; i++ { /* 2^20 - 2^10 */
-		square(&t, &t)
-	}
-	mul(&z2_20_0, &t, &z2_10_0) /* 2^20 - 2^0 */
-
-	square(&t, &z2_20_0)      /* 2^21 - 2^1 */
-	for i := 1; i < 20; i++ { /* 2^40 - 2^20 */
-		square(&t, &t)
-	}
-	mul(&t, &t, &z2_20_0) /* 2^40 - 2^0 */
-
-	square(&t, &t)            /* 2^41 - 2^1 */
-	for i := 1; i < 10; i++ { /* 2^50 - 2^10 */
-		square(&t, &t)
-	}
-	mul(&z2_50_0, &t, &z2_10_0) /* 2^50 - 2^0 */
-
-	square(&t, &z2_50_0)      /* 2^51 - 2^1 */
-	for i := 1; i < 50; i++ { /* 2^100 - 2^50 */
-		square(&t, &t)
-	}
-	mul(&z2_100_0, &t, &z2_50_0) /* 2^100 - 2^0 */
-
-	square(&t, &z2_100_0)      /* 2^101 - 2^1 */
-	for i := 1; i < 100; i++ { /* 2^200 - 2^100 */
-		square(&t, &t)
-	}
-	mul(&t, &t, &z2_100_0) /* 2^200 - 2^0 */
-
-	square(&t, &t)            /* 2^201 - 2^1 */
-	for i := 1; i < 50; i++ { /* 2^250 - 2^50 */
-		square(&t, &t)
-	}
-	mul(&t, &t, &z2_50_0) /* 2^250 - 2^0 */
-
-	square(&t, &t) /* 2^251 - 2^1 */
-	square(&t, &t) /* 2^252 - 2^2 */
-	square(&t, &t) /* 2^253 - 2^3 */
-
-	square(&t, &t) /* 2^254 - 2^4 */
-
-	square(&t, &t)   /* 2^255 - 2^5 */
-	mul(r, &t, &z11) /* 2^255 - 21 */
-}
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/mul_amd64.s b/pkg/metadata/vendor/golang.org/x/crypto/curve25519/mul_amd64.s
deleted file mode 100644
index 5ce80a2e5..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/mul_amd64.s
+++ /dev/null
@@ -1,169 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// 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
-	MOVQ a+8(FP), SI
-	MOVQ b+16(FP), DX
-
-	MOVQ DX,CX
-	MOVQ 24(SI),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,0(SP)
-	MULQ 16(CX)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 32(SI),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,8(SP)
-	MULQ 8(CX)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 0(SI),AX
-	MULQ 0(CX)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 0(SI),AX
-	MULQ 8(CX)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 0(SI),AX
-	MULQ 16(CX)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 0(SI),AX
-	MULQ 24(CX)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 0(SI),AX
-	MULQ 32(CX)
-	MOVQ AX,BX
-	MOVQ DX,BP
-	MOVQ 8(SI),AX
-	MULQ 0(CX)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SI),AX
-	MULQ 8(CX)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 8(SI),AX
-	MULQ 16(CX)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 8(SI),AX
-	MULQ 24(CX)
-	ADDQ AX,BX
-	ADCQ DX,BP
-	MOVQ 8(SI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(CX)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 16(SI),AX
-	MULQ 0(CX)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 16(SI),AX
-	MULQ 8(CX)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 16(SI),AX
-	MULQ 16(CX)
-	ADDQ AX,BX
-	ADCQ DX,BP
-	MOVQ 16(SI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 24(CX)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 16(SI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(CX)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 24(SI),AX
-	MULQ 0(CX)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 24(SI),AX
-	MULQ 8(CX)
-	ADDQ AX,BX
-	ADCQ DX,BP
-	MOVQ 0(SP),AX
-	MULQ 24(CX)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 0(SP),AX
-	MULQ 32(CX)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 32(SI),AX
-	MULQ 0(CX)
-	ADDQ AX,BX
-	ADCQ DX,BP
-	MOVQ 8(SP),AX
-	MULQ 16(CX)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SP),AX
-	MULQ 24(CX)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 8(SP),AX
-	MULQ 32(CX)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ $REDMASK51,SI
-	SHLQ $13,R9:R8
-	ANDQ SI,R8
-	SHLQ $13,R11:R10
-	ANDQ SI,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ SI,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ SI,R14
-	ADDQ R13,R14
-	SHLQ $13,BP:BX
-	ANDQ SI,BX
-	ADDQ R15,BX
-	IMUL3Q $19,BP,DX
-	ADDQ DX,R8
-	MOVQ R8,DX
-	SHRQ $51,DX
-	ADDQ R10,DX
-	MOVQ DX,CX
-	SHRQ $51,DX
-	ANDQ SI,R8
-	ADDQ R12,DX
-	MOVQ DX,R9
-	SHRQ $51,DX
-	ANDQ SI,CX
-	ADDQ R14,DX
-	MOVQ DX,AX
-	SHRQ $51,DX
-	ANDQ SI,R9
-	ADDQ BX,DX
-	MOVQ DX,R10
-	SHRQ $51,DX
-	ANDQ SI,AX
-	IMUL3Q $19,DX,DX
-	ADDQ DX,R8
-	ANDQ SI,R10
-	MOVQ R8,0(DI)
-	MOVQ CX,8(DI)
-	MOVQ R9,16(DI)
-	MOVQ AX,24(DI)
-	MOVQ R10,32(DI)
-	RET
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/square_amd64.s b/pkg/metadata/vendor/golang.org/x/crypto/curve25519/square_amd64.s
deleted file mode 100644
index 12f73734f..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/curve25519/square_amd64.s
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// 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
-	MOVQ in+8(FP), SI
-
-	MOVQ 0(SI),AX
-	MULQ 0(SI)
-	MOVQ AX,CX
-	MOVQ DX,R8
-	MOVQ 0(SI),AX
-	SHLQ $1,AX
-	MULQ 8(SI)
-	MOVQ AX,R9
-	MOVQ DX,R10
-	MOVQ 0(SI),AX
-	SHLQ $1,AX
-	MULQ 16(SI)
-	MOVQ AX,R11
-	MOVQ DX,R12
-	MOVQ 0(SI),AX
-	SHLQ $1,AX
-	MULQ 24(SI)
-	MOVQ AX,R13
-	MOVQ DX,R14
-	MOVQ 0(SI),AX
-	SHLQ $1,AX
-	MULQ 32(SI)
-	MOVQ AX,R15
-	MOVQ DX,BX
-	MOVQ 8(SI),AX
-	MULQ 8(SI)
-	ADDQ AX,R11
-	ADCQ DX,R12
-	MOVQ 8(SI),AX
-	SHLQ $1,AX
-	MULQ 16(SI)
-	ADDQ AX,R13
-	ADCQ DX,R14
-	MOVQ 8(SI),AX
-	SHLQ $1,AX
-	MULQ 24(SI)
-	ADDQ AX,R15
-	ADCQ DX,BX
-	MOVQ 8(SI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SI)
-	ADDQ AX,CX
-	ADCQ DX,R8
-	MOVQ 16(SI),AX
-	MULQ 16(SI)
-	ADDQ AX,R15
-	ADCQ DX,BX
-	MOVQ 16(SI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 24(SI)
-	ADDQ AX,CX
-	ADCQ DX,R8
-	MOVQ 16(SI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SI)
-	ADDQ AX,R9
-	ADCQ DX,R10
-	MOVQ 24(SI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 24(SI)
-	ADDQ AX,R9
-	ADCQ DX,R10
-	MOVQ 24(SI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SI)
-	ADDQ AX,R11
-	ADCQ DX,R12
-	MOVQ 32(SI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(SI)
-	ADDQ AX,R13
-	ADCQ DX,R14
-	MOVQ $REDMASK51,SI
-	SHLQ $13,R8:CX
-	ANDQ SI,CX
-	SHLQ $13,R10:R9
-	ANDQ SI,R9
-	ADDQ R8,R9
-	SHLQ $13,R12:R11
-	ANDQ SI,R11
-	ADDQ R10,R11
-	SHLQ $13,R14:R13
-	ANDQ SI,R13
-	ADDQ R12,R13
-	SHLQ $13,BX:R15
-	ANDQ SI,R15
-	ADDQ R14,R15
-	IMUL3Q $19,BX,DX
-	ADDQ DX,CX
-	MOVQ CX,DX
-	SHRQ $51,DX
-	ADDQ R9,DX
-	ANDQ SI,CX
-	MOVQ DX,R8
-	SHRQ $51,DX
-	ADDQ R11,DX
-	ANDQ SI,R8
-	MOVQ DX,R9
-	SHRQ $51,DX
-	ADDQ R13,DX
-	ANDQ SI,R9
-	MOVQ DX,AX
-	SHRQ $51,DX
-	ADDQ R15,DX
-	ANDQ SI,AX
-	MOVQ DX,R10
-	SHRQ $51,DX
-	IMUL3Q $19,DX,DX
-	ADDQ DX,CX
-	ANDQ SI,R10
-	MOVQ CX,0(DI)
-	MOVQ R8,8(DI)
-	MOVQ R9,16(DI)
-	MOVQ AX,24(DI)
-	MOVQ R10,32(DI)
-	RET
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/otr/libotr_test_helper.c b/pkg/metadata/vendor/golang.org/x/crypto/otr/libotr_test_helper.c
deleted file mode 100644
index b3ca072d4..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/otr/libotr_test_helper.c
+++ /dev/null
@@ -1,197 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code can be compiled and used to test the otr package against libotr.
-// See otr_test.go.
-
-// +build ignore
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <proto.h>
-#include <message.h>
-#include <privkey.h>
-
-static int g_session_established = 0;
-
-OtrlPolicy policy(void *opdata, ConnContext *context) {
-  return OTRL_POLICY_ALWAYS;
-}
-
-int is_logged_in(void *opdata, const char *accountname, const char *protocol,
-                 const char *recipient) {
-  return 1;
-}
-
-void inject_message(void *opdata, const char *accountname, const char *protocol,
-                    const char *recipient, const char *message) {
-  printf("%s\n", message);
-  fflush(stdout);
-  fprintf(stderr, "libotr helper sent: %s\n", message);
-}
-
-void update_context_list(void *opdata) {}
-
-void new_fingerprint(void *opdata, OtrlUserState us, const char *accountname,
-                     const char *protocol, const char *username,
-                     unsigned char fingerprint[20]) {
-  fprintf(stderr, "NEW FINGERPRINT\n");
-  g_session_established = 1;
-}
-
-void write_fingerprints(void *opdata) {}
-
-void gone_secure(void *opdata, ConnContext *context) {}
-
-void gone_insecure(void *opdata, ConnContext *context) {}
-
-void still_secure(void *opdata, ConnContext *context, int is_reply) {}
-
-int max_message_size(void *opdata, ConnContext *context) { return 99999; }
-
-const char *account_name(void *opdata, const char *account,
-                         const char *protocol) {
-  return "ACCOUNT";
-}
-
-void account_name_free(void *opdata, const char *account_name) {}
-
-const char *error_message(void *opdata, ConnContext *context,
-                          OtrlErrorCode err_code) {
-  return "ERR";
-}
-
-void error_message_free(void *opdata, const char *msg) {}
-
-void resent_msg_prefix_free(void *opdata, const char *prefix) {}
-
-void handle_smp_event(void *opdata, OtrlSMPEvent smp_event,
-                      ConnContext *context, unsigned short progress_event,
-                      char *question) {}
-
-void handle_msg_event(void *opdata, OtrlMessageEvent msg_event,
-                      ConnContext *context, const char *message,
-                      gcry_error_t err) {
-  fprintf(stderr, "msg event: %d %s\n", msg_event, message);
-}
-
-OtrlMessageAppOps uiops = {
-    policy,
-    NULL,
-    is_logged_in,
-    inject_message,
-    update_context_list,
-    new_fingerprint,
-    write_fingerprints,
-    gone_secure,
-    gone_insecure,
-    still_secure,
-    max_message_size,
-    account_name,
-    account_name_free,
-    NULL, /* received_symkey */
-    error_message,
-    error_message_free,
-    NULL, /* resent_msg_prefix */
-    resent_msg_prefix_free,
-    handle_smp_event,
-    handle_msg_event,
-    NULL /* create_instag */,
-    NULL /* convert_msg */,
-    NULL /* convert_free */,
-    NULL /* timer_control */,
-};
-
-static const char kPrivateKeyData[] =
-    "(privkeys (account (name \"account\") (protocol proto) (private-key (dsa "
-    "(p "
-    "#00FC07ABCF0DC916AFF6E9AE47BEF60C7AB9B4D6B2469E436630E36F8A489BE812486A09F"
-    "30B71224508654940A835301ACC525A4FF133FC152CC53DCC59D65C30A54F1993FE13FE63E"
-    "5823D4C746DB21B90F9B9C00B49EC7404AB1D929BA7FBA12F2E45C6E0A651689750E8528AB"
-    "8C031D3561FECEE72EBB4A090D450A9B7A857#) (q "
-    "#00997BD266EF7B1F60A5C23F3A741F2AEFD07A2081#) (g "
-    "#535E360E8A95EBA46A4F7DE50AD6E9B2A6DB785A66B64EB9F20338D2A3E8FB0E94725848F"
-    "1AA6CC567CB83A1CC517EC806F2E92EAE71457E80B2210A189B91250779434B41FC8A8873F"
-    "6DB94BEA7D177F5D59E7E114EE10A49CFD9CEF88AE43387023B672927BA74B04EB6BBB5E57"
-    "597766A2F9CE3857D7ACE3E1E3BC1FC6F26#) (y "
-    "#0AC8670AD767D7A8D9D14CC1AC6744CD7D76F993B77FFD9E39DF01E5A6536EF65E775FCEF"
-    "2A983E2A19BD6415500F6979715D9FD1257E1FE2B6F5E1E74B333079E7C880D39868462A93"
-    "454B41877BE62E5EF0A041C2EE9C9E76BD1E12AE25D9628DECB097025DD625EF49C3258A1A"
-    "3C0FF501E3DC673B76D7BABF349009B6ECF#) (x "
-    "#14D0345A3562C480A039E3C72764F72D79043216#)))))\n";
-
-int main() {
-  OTRL_INIT;
-
-  // We have to write the private key information to a file because the libotr
-  // API demands a filename to read from.
-  const char *tmpdir = "/tmp";
-  if (getenv("TMP")) {
-    tmpdir = getenv("TMP");
-  }
-
-  char private_key_file[256];
-  snprintf(private_key_file, sizeof(private_key_file),
-           "%s/libotr_test_helper_privatekeys-XXXXXX", tmpdir);
-  int fd = mkstemp(private_key_file);
-  if (fd == -1) {
-    perror("creating temp file");
-  }
-  write(fd, kPrivateKeyData, sizeof(kPrivateKeyData) - 1);
-  close(fd);
-
-  OtrlUserState userstate = otrl_userstate_create();
-  otrl_privkey_read(userstate, private_key_file);
-  unlink(private_key_file);
-
-  fprintf(stderr, "libotr helper started\n");
-
-  char buf[4096];
-
-  for (;;) {
-    char *message = fgets(buf, sizeof(buf), stdin);
-    if (strlen(message) == 0) {
-      break;
-    }
-    message[strlen(message) - 1] = 0;
-    fprintf(stderr, "libotr helper got: %s\n", message);
-
-    char *newmessage = NULL;
-    OtrlTLV *tlvs;
-    int ignore_message = otrl_message_receiving(
-        userstate, &uiops, NULL, "account", "proto", "peer", message,
-        &newmessage, &tlvs, NULL, NULL, NULL);
-    if (tlvs) {
-      otrl_tlv_free(tlvs);
-    }
-
-    if (newmessage != NULL) {
-      fprintf(stderr, "libotr got: %s\n", newmessage);
-      otrl_message_free(newmessage);
-
-      gcry_error_t err;
-      char *newmessage = NULL;
-
-      err = otrl_message_sending(userstate, &uiops, NULL, "account", "proto",
-                                 "peer", 0, "test message", NULL, &newmessage,
-                                 OTRL_FRAGMENT_SEND_SKIP, NULL, NULL, NULL);
-      if (newmessage == NULL) {
-        fprintf(stderr, "libotr didn't encrypt message\n");
-        return 1;
-      }
-      write(1, newmessage, strlen(newmessage));
-      write(1, "\n", 1);
-      fprintf(stderr, "libotr sent: %s\n", newmessage);
-      otrl_message_free(newmessage);
-
-      g_session_established = 0;
-      write(1, "?OTRv2?\n", 8);
-      fprintf(stderr, "libotr sent: ?OTRv2\n");
-    }
-  }
-
-  return 0;
-}
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/otr/otr.go b/pkg/metadata/vendor/golang.org/x/crypto/otr/otr.go
deleted file mode 100644
index 173b753db..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/otr/otr.go
+++ /dev/null
@@ -1,1415 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package otr implements the Off The Record protocol as specified in
-// http://www.cypherpunks.ca/otr/Protocol-v2-3.1.0.html
-package otr // import "golang.org/x/crypto/otr"
-
-import (
-	"bytes"
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/dsa"
-	"crypto/hmac"
-	"crypto/rand"
-	"crypto/sha1"
-	"crypto/sha256"
-	"crypto/subtle"
-	"encoding/base64"
-	"encoding/hex"
-	"errors"
-	"hash"
-	"io"
-	"math/big"
-	"strconv"
-)
-
-// SecurityChange describes a change in the security state of a Conversation.
-type SecurityChange int
-
-const (
-	NoChange SecurityChange = iota
-	// NewKeys indicates that a key exchange has completed. This occurs
-	// when a conversation first becomes encrypted, and when the keys are
-	// renegotiated within an encrypted conversation.
-	NewKeys
-	// SMPSecretNeeded indicates that the peer has started an
-	// authentication and that we need to supply a secret. Call SMPQuestion
-	// to get the optional, human readable challenge and then Authenticate
-	// to supply the matching secret.
-	SMPSecretNeeded
-	// SMPComplete indicates that an authentication completed. The identity
-	// of the peer has now been confirmed.
-	SMPComplete
-	// SMPFailed indicates that an authentication failed.
-	SMPFailed
-	// ConversationEnded indicates that the peer ended the secure
-	// conversation.
-	ConversationEnded
-)
-
-// QueryMessage can be sent to a peer to start an OTR conversation.
-var QueryMessage = "?OTRv2?"
-
-// ErrorPrefix can be used to make an OTR error by appending an error message
-// to it.
-var ErrorPrefix = "?OTR Error:"
-
-var (
-	fragmentPartSeparator = []byte(",")
-	fragmentPrefix        = []byte("?OTR,")
-	msgPrefix             = []byte("?OTR:")
-	queryMarker           = []byte("?OTR")
-)
-
-// isQuery attempts to parse an OTR query from msg and returns the greatest
-// common version, or 0 if msg is not an OTR query.
-func isQuery(msg []byte) (greatestCommonVersion int) {
-	pos := bytes.Index(msg, queryMarker)
-	if pos == -1 {
-		return 0
-	}
-	for i, c := range msg[pos+len(queryMarker):] {
-		if i == 0 {
-			if c == '?' {
-				// Indicates support for version 1, but we don't
-				// implement that.
-				continue
-			}
-
-			if c != 'v' {
-				// Invalid message
-				return 0
-			}
-
-			continue
-		}
-
-		if c == '?' {
-			// End of message
-			return
-		}
-
-		if c == ' ' || c == '\t' {
-			// Probably an invalid message
-			return 0
-		}
-
-		if c == '2' {
-			greatestCommonVersion = 2
-		}
-	}
-
-	return 0
-}
-
-const (
-	statePlaintext = iota
-	stateEncrypted
-	stateFinished
-)
-
-const (
-	authStateNone = iota
-	authStateAwaitingDHKey
-	authStateAwaitingRevealSig
-	authStateAwaitingSig
-)
-
-const (
-	msgTypeDHCommit  = 2
-	msgTypeData      = 3
-	msgTypeDHKey     = 10
-	msgTypeRevealSig = 17
-	msgTypeSig       = 18
-)
-
-const (
-	// If the requested fragment size is less than this, it will be ignored.
-	minFragmentSize = 18
-	// Messages are padded to a multiple of this number of bytes.
-	paddingGranularity = 256
-	// The number of bytes in a Diffie-Hellman private value (320-bits).
-	dhPrivateBytes = 40
-	// The number of bytes needed to represent an element of the DSA
-	// subgroup (160-bits).
-	dsaSubgroupBytes = 20
-	// The number of bytes of the MAC that are sent on the wire (160-bits).
-	macPrefixBytes = 20
-)
-
-// These are the global, common group parameters for OTR.
-var (
-	p       *big.Int // group prime
-	g       *big.Int // group generator
-	q       *big.Int // group order
-	pMinus2 *big.Int
-)
-
-func init() {
-	p, _ = new(big.Int).SetString("FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3DC2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F83655D23DCA3AD961C62F356208552BB9ED529077096966D670C354E4ABC9804F1746C08CA237327FFFFFFFFFFFFFFFF", 16)
-	q, _ = new(big.Int).SetString("7FFFFFFFFFFFFFFFE487ED5110B4611A62633145C06E0E68948127044533E63A0105DF531D89CD9128A5043CC71A026EF7CA8CD9E69D218D98158536F92F8A1BA7F09AB6B6A8E122F242DABB312F3F637A262174D31BF6B585FFAE5B7A035BF6F71C35FDAD44CFD2D74F9208BE258FF324943328F6722D9EE1003E5C50B1DF82CC6D241B0E2AE9CD348B1FD47E9267AFC1B2AE91EE51D6CB0E3179AB1042A95DCF6A9483B84B4B36B3861AA7255E4C0278BA36046511B993FFFFFFFFFFFFFFFF", 16)
-	g = new(big.Int).SetInt64(2)
-	pMinus2 = new(big.Int).Sub(p, g)
-}
-
-// Conversation represents a relation with a peer. The zero value is a valid
-// Conversation, although PrivateKey must be set.
-//
-// When communicating with a peer, all inbound messages should be passed to
-// Conversation.Receive and all outbound messages to Conversation.Send. The
-// Conversation will take care of maintaining the encryption state and
-// negotiating encryption as needed.
-type Conversation struct {
-	// PrivateKey contains the private key to use to sign key exchanges.
-	PrivateKey *PrivateKey
-
-	// Rand can be set to override the entropy source. Otherwise,
-	// crypto/rand will be used.
-	Rand io.Reader
-	// If FragmentSize is set, all messages produced by Receive and Send
-	// will be fragmented into messages of, at most, this number of bytes.
-	FragmentSize int
-
-	// Once Receive has returned NewKeys once, the following fields are
-	// valid.
-	SSID           [8]byte
-	TheirPublicKey PublicKey
-
-	state, authState int
-
-	r       [16]byte
-	x, y    *big.Int
-	gx, gy  *big.Int
-	gxBytes []byte
-	digest  [sha256.Size]byte
-
-	revealKeys, sigKeys akeKeys
-
-	myKeyId         uint32
-	myCurrentDHPub  *big.Int
-	myCurrentDHPriv *big.Int
-	myLastDHPub     *big.Int
-	myLastDHPriv    *big.Int
-
-	theirKeyId        uint32
-	theirCurrentDHPub *big.Int
-	theirLastDHPub    *big.Int
-
-	keySlots [4]keySlot
-
-	myCounter    [8]byte
-	theirLastCtr [8]byte
-	oldMACs      []byte
-
-	k, n int // fragment state
-	frag []byte
-
-	smp smpState
-}
-
-// A keySlot contains key material for a specific (their keyid, my keyid) pair.
-type keySlot struct {
-	// used is true if this slot is valid. If false, it's free for reuse.
-	used                   bool
-	theirKeyId             uint32
-	myKeyId                uint32
-	sendAESKey, recvAESKey []byte
-	sendMACKey, recvMACKey []byte
-	theirLastCtr           [8]byte
-}
-
-// akeKeys are generated during key exchange. There's one set for the reveal
-// signature message and another for the signature message. In the protocol
-// spec the latter are indicated with a prime mark.
-type akeKeys struct {
-	c      [16]byte
-	m1, m2 [32]byte
-}
-
-func (c *Conversation) rand() io.Reader {
-	if c.Rand != nil {
-		return c.Rand
-	}
-	return rand.Reader
-}
-
-func (c *Conversation) randMPI(buf []byte) *big.Int {
-	_, err := io.ReadFull(c.rand(), buf)
-	if err != nil {
-		panic("otr: short read from random source")
-	}
-
-	return new(big.Int).SetBytes(buf)
-}
-
-// tlv represents the type-length value from the protocol.
-type tlv struct {
-	typ, length uint16
-	data        []byte
-}
-
-const (
-	tlvTypePadding          = 0
-	tlvTypeDisconnected     = 1
-	tlvTypeSMP1             = 2
-	tlvTypeSMP2             = 3
-	tlvTypeSMP3             = 4
-	tlvTypeSMP4             = 5
-	tlvTypeSMPAbort         = 6
-	tlvTypeSMP1WithQuestion = 7
-)
-
-// Receive handles a message from a peer. It returns a human readable message,
-// an indicator of whether that message was encrypted, a hint about the
-// encryption state and zero or more messages to send back to the peer.
-// These messages do not need to be passed to Send before transmission.
-func (c *Conversation) Receive(in []byte) (out []byte, encrypted bool, change SecurityChange, toSend [][]byte, err error) {
-	if bytes.HasPrefix(in, fragmentPrefix) {
-		in, err = c.processFragment(in)
-		if in == nil || err != nil {
-			return
-		}
-	}
-
-	if bytes.HasPrefix(in, msgPrefix) && in[len(in)-1] == '.' {
-		in = in[len(msgPrefix) : len(in)-1]
-	} else if version := isQuery(in); version > 0 {
-		c.authState = authStateAwaitingDHKey
-		c.reset()
-		toSend = c.encode(c.generateDHCommit())
-		return
-	} else {
-		// plaintext message
-		out = in
-		return
-	}
-
-	msg := make([]byte, base64.StdEncoding.DecodedLen(len(in)))
-	msgLen, err := base64.StdEncoding.Decode(msg, in)
-	if err != nil {
-		err = errors.New("otr: invalid base64 encoding in message")
-		return
-	}
-	msg = msg[:msgLen]
-
-	// The first two bytes are the protocol version (2)
-	if len(msg) < 3 || msg[0] != 0 || msg[1] != 2 {
-		err = errors.New("otr: invalid OTR message")
-		return
-	}
-
-	msgType := int(msg[2])
-	msg = msg[3:]
-
-	switch msgType {
-	case msgTypeDHCommit:
-		switch c.authState {
-		case authStateNone:
-			c.authState = authStateAwaitingRevealSig
-			if err = c.processDHCommit(msg); err != nil {
-				return
-			}
-			c.reset()
-			toSend = c.encode(c.generateDHKey())
-			return
-		case authStateAwaitingDHKey:
-			// This is a 'SYN-crossing'. The greater digest wins.
-			var cmp int
-			if cmp, err = c.compareToDHCommit(msg); err != nil {
-				return
-			}
-			if cmp > 0 {
-				// We win. Retransmit DH commit.
-				toSend = c.encode(c.serializeDHCommit())
-				return
-			} else {
-				// They win. We forget about our DH commit.
-				c.authState = authStateAwaitingRevealSig
-				if err = c.processDHCommit(msg); err != nil {
-					return
-				}
-				c.reset()
-				toSend = c.encode(c.generateDHKey())
-				return
-			}
-		case authStateAwaitingRevealSig:
-			if err = c.processDHCommit(msg); err != nil {
-				return
-			}
-			toSend = c.encode(c.serializeDHKey())
-		case authStateAwaitingSig:
-			if err = c.processDHCommit(msg); err != nil {
-				return
-			}
-			c.reset()
-			toSend = c.encode(c.generateDHKey())
-			c.authState = authStateAwaitingRevealSig
-		default:
-			panic("bad state")
-		}
-	case msgTypeDHKey:
-		switch c.authState {
-		case authStateAwaitingDHKey:
-			var isSame bool
-			if isSame, err = c.processDHKey(msg); err != nil {
-				return
-			}
-			if isSame {
-				err = errors.New("otr: unexpected duplicate DH key")
-				return
-			}
-			toSend = c.encode(c.generateRevealSig())
-			c.authState = authStateAwaitingSig
-		case authStateAwaitingSig:
-			var isSame bool
-			if isSame, err = c.processDHKey(msg); err != nil {
-				return
-			}
-			if isSame {
-				toSend = c.encode(c.serializeDHKey())
-			}
-		}
-	case msgTypeRevealSig:
-		if c.authState != authStateAwaitingRevealSig {
-			return
-		}
-		if err = c.processRevealSig(msg); err != nil {
-			return
-		}
-		toSend = c.encode(c.generateSig())
-		c.authState = authStateNone
-		c.state = stateEncrypted
-		change = NewKeys
-	case msgTypeSig:
-		if c.authState != authStateAwaitingSig {
-			return
-		}
-		if err = c.processSig(msg); err != nil {
-			return
-		}
-		c.authState = authStateNone
-		c.state = stateEncrypted
-		change = NewKeys
-	case msgTypeData:
-		if c.state != stateEncrypted {
-			err = errors.New("otr: encrypted message received without encrypted session established")
-			return
-		}
-		var tlvs []tlv
-		out, tlvs, err = c.processData(msg)
-		encrypted = true
-
-	EachTLV:
-		for _, inTLV := range tlvs {
-			switch inTLV.typ {
-			case tlvTypeDisconnected:
-				change = ConversationEnded
-				c.state = stateFinished
-				break EachTLV
-			case tlvTypeSMP1, tlvTypeSMP2, tlvTypeSMP3, tlvTypeSMP4, tlvTypeSMPAbort, tlvTypeSMP1WithQuestion:
-				var reply tlv
-				var complete bool
-				reply, complete, err = c.processSMP(inTLV)
-				if err == smpSecretMissingError {
-					err = nil
-					change = SMPSecretNeeded
-					c.smp.saved = &inTLV
-					return
-				}
-				if err == smpFailureError {
-					err = nil
-					change = SMPFailed
-				} else if complete {
-					change = SMPComplete
-				}
-				if reply.typ != 0 {
-					toSend = c.encode(c.generateData(nil, &reply))
-				}
-				break EachTLV
-			default:
-				// skip unknown TLVs
-			}
-		}
-	default:
-		err = errors.New("otr: unknown message type " + strconv.Itoa(msgType))
-	}
-
-	return
-}
-
-// Send takes a human readable message from the local user, possibly encrypts
-// it and returns zero one or more messages to send to the peer.
-func (c *Conversation) Send(msg []byte) ([][]byte, error) {
-	switch c.state {
-	case statePlaintext:
-		return [][]byte{msg}, nil
-	case stateEncrypted:
-		return c.encode(c.generateData(msg, nil)), nil
-	case stateFinished:
-		return nil, errors.New("otr: cannot send message because secure conversation has finished")
-	}
-
-	return nil, errors.New("otr: cannot send message in current state")
-}
-
-// SMPQuestion returns the human readable challenge question from the peer.
-// It's only valid after Receive has returned SMPSecretNeeded.
-func (c *Conversation) SMPQuestion() string {
-	return c.smp.question
-}
-
-// Authenticate begins an authentication with the peer. Authentication involves
-// an optional challenge message and a shared secret. The authentication
-// proceeds until either Receive returns SMPComplete, SMPSecretNeeded (which
-// indicates that a new authentication is happening and thus this one was
-// aborted) or SMPFailed.
-func (c *Conversation) Authenticate(question string, mutualSecret []byte) (toSend [][]byte, err error) {
-	if c.state != stateEncrypted {
-		err = errors.New("otr: can't authenticate a peer without a secure conversation established")
-		return
-	}
-
-	if c.smp.saved != nil {
-		c.calcSMPSecret(mutualSecret, false /* they started it */)
-
-		var out tlv
-		var complete bool
-		out, complete, err = c.processSMP(*c.smp.saved)
-		if complete {
-			panic("SMP completed on the first message")
-		}
-		c.smp.saved = nil
-		if out.typ != 0 {
-			toSend = c.encode(c.generateData(nil, &out))
-		}
-		return
-	}
-
-	c.calcSMPSecret(mutualSecret, true /* we started it */)
-	outs := c.startSMP(question)
-	for _, out := range outs {
-		toSend = append(toSend, c.encode(c.generateData(nil, &out))...)
-	}
-	return
-}
-
-// End ends a secure conversation by generating a termination message for
-// the peer and switches to unencrypted communication.
-func (c *Conversation) End() (toSend [][]byte) {
-	switch c.state {
-	case statePlaintext:
-		return nil
-	case stateEncrypted:
-		c.state = statePlaintext
-		return c.encode(c.generateData(nil, &tlv{typ: tlvTypeDisconnected}))
-	case stateFinished:
-		c.state = statePlaintext
-		return nil
-	}
-	panic("unreachable")
-}
-
-// IsEncrypted returns true if a message passed to Send would be encrypted
-// before transmission. This result remains valid until the next call to
-// Receive or End, which may change the state of the Conversation.
-func (c *Conversation) IsEncrypted() bool {
-	return c.state == stateEncrypted
-}
-
-var fragmentError = errors.New("otr: invalid OTR fragment")
-
-// processFragment processes a fragmented OTR message and possibly returns a
-// complete message. Fragmented messages look like "?OTR,k,n,msg," where k is
-// the fragment number (starting from 1), n is the number of fragments in this
-// message and msg is a substring of the base64 encoded message.
-func (c *Conversation) processFragment(in []byte) (out []byte, err error) {
-	in = in[len(fragmentPrefix):] // remove "?OTR,"
-	parts := bytes.Split(in, fragmentPartSeparator)
-	if len(parts) != 4 || len(parts[3]) != 0 {
-		return nil, fragmentError
-	}
-
-	k, err := strconv.Atoi(string(parts[0]))
-	if err != nil {
-		return nil, fragmentError
-	}
-
-	n, err := strconv.Atoi(string(parts[1]))
-	if err != nil {
-		return nil, fragmentError
-	}
-
-	if k < 1 || n < 1 || k > n {
-		return nil, fragmentError
-	}
-
-	if k == 1 {
-		c.frag = append(c.frag[:0], parts[2]...)
-		c.k, c.n = k, n
-	} else if n == c.n && k == c.k+1 {
-		c.frag = append(c.frag, parts[2]...)
-		c.k++
-	} else {
-		c.frag = c.frag[:0]
-		c.n, c.k = 0, 0
-	}
-
-	if c.n > 0 && c.k == c.n {
-		c.n, c.k = 0, 0
-		return c.frag, nil
-	}
-
-	return nil, nil
-}
-
-func (c *Conversation) generateDHCommit() []byte {
-	_, err := io.ReadFull(c.rand(), c.r[:])
-	if err != nil {
-		panic("otr: short read from random source")
-	}
-
-	var xBytes [dhPrivateBytes]byte
-	c.x = c.randMPI(xBytes[:])
-	c.gx = new(big.Int).Exp(g, c.x, p)
-	c.gy = nil
-	c.gxBytes = appendMPI(nil, c.gx)
-
-	h := sha256.New()
-	h.Write(c.gxBytes)
-	h.Sum(c.digest[:0])
-
-	aesCipher, err := aes.NewCipher(c.r[:])
-	if err != nil {
-		panic(err.Error())
-	}
-
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(c.gxBytes, c.gxBytes)
-
-	return c.serializeDHCommit()
-}
-
-func (c *Conversation) serializeDHCommit() []byte {
-	var ret []byte
-	ret = appendU16(ret, 2) // protocol version
-	ret = append(ret, msgTypeDHCommit)
-	ret = appendData(ret, c.gxBytes)
-	ret = appendData(ret, c.digest[:])
-	return ret
-}
-
-func (c *Conversation) processDHCommit(in []byte) error {
-	var ok1, ok2 bool
-	c.gxBytes, in, ok1 = getData(in)
-	digest, in, ok2 := getData(in)
-	if !ok1 || !ok2 || len(in) > 0 {
-		return errors.New("otr: corrupt DH commit message")
-	}
-	copy(c.digest[:], digest)
-	return nil
-}
-
-func (c *Conversation) compareToDHCommit(in []byte) (int, error) {
-	_, in, ok1 := getData(in)
-	digest, in, ok2 := getData(in)
-	if !ok1 || !ok2 || len(in) > 0 {
-		return 0, errors.New("otr: corrupt DH commit message")
-	}
-	return bytes.Compare(c.digest[:], digest), nil
-}
-
-func (c *Conversation) generateDHKey() []byte {
-	var yBytes [dhPrivateBytes]byte
-	c.y = c.randMPI(yBytes[:])
-	c.gy = new(big.Int).Exp(g, c.y, p)
-	return c.serializeDHKey()
-}
-
-func (c *Conversation) serializeDHKey() []byte {
-	var ret []byte
-	ret = appendU16(ret, 2) // protocol version
-	ret = append(ret, msgTypeDHKey)
-	ret = appendMPI(ret, c.gy)
-	return ret
-}
-
-func (c *Conversation) processDHKey(in []byte) (isSame bool, err error) {
-	gy, in, ok := getMPI(in)
-	if !ok {
-		err = errors.New("otr: corrupt DH key message")
-		return
-	}
-	if gy.Cmp(g) < 0 || gy.Cmp(pMinus2) > 0 {
-		err = errors.New("otr: DH value out of range")
-		return
-	}
-	if c.gy != nil {
-		isSame = c.gy.Cmp(gy) == 0
-		return
-	}
-	c.gy = gy
-	return
-}
-
-func (c *Conversation) generateEncryptedSignature(keys *akeKeys, xFirst bool) ([]byte, []byte) {
-	var xb []byte
-	xb = c.PrivateKey.PublicKey.Serialize(xb)
-
-	var verifyData []byte
-	if xFirst {
-		verifyData = appendMPI(verifyData, c.gx)
-		verifyData = appendMPI(verifyData, c.gy)
-	} else {
-		verifyData = appendMPI(verifyData, c.gy)
-		verifyData = appendMPI(verifyData, c.gx)
-	}
-	verifyData = append(verifyData, xb...)
-	verifyData = appendU32(verifyData, c.myKeyId)
-
-	mac := hmac.New(sha256.New, keys.m1[:])
-	mac.Write(verifyData)
-	mb := mac.Sum(nil)
-
-	xb = appendU32(xb, c.myKeyId)
-	xb = append(xb, c.PrivateKey.Sign(c.rand(), mb)...)
-
-	aesCipher, err := aes.NewCipher(keys.c[:])
-	if err != nil {
-		panic(err.Error())
-	}
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(xb, xb)
-
-	mac = hmac.New(sha256.New, keys.m2[:])
-	encryptedSig := appendData(nil, xb)
-	mac.Write(encryptedSig)
-
-	return encryptedSig, mac.Sum(nil)
-}
-
-func (c *Conversation) generateRevealSig() []byte {
-	s := new(big.Int).Exp(c.gy, c.x, p)
-	c.calcAKEKeys(s)
-	c.myKeyId++
-
-	encryptedSig, mac := c.generateEncryptedSignature(&c.revealKeys, true /* gx comes first */)
-
-	c.myCurrentDHPub = c.gx
-	c.myCurrentDHPriv = c.x
-	c.rotateDHKeys()
-	incCounter(&c.myCounter)
-
-	var ret []byte
-	ret = appendU16(ret, 2)
-	ret = append(ret, msgTypeRevealSig)
-	ret = appendData(ret, c.r[:])
-	ret = append(ret, encryptedSig...)
-	ret = append(ret, mac[:20]...)
-	return ret
-}
-
-func (c *Conversation) processEncryptedSig(encryptedSig, theirMAC []byte, keys *akeKeys, xFirst bool) error {
-	mac := hmac.New(sha256.New, keys.m2[:])
-	mac.Write(appendData(nil, encryptedSig))
-	myMAC := mac.Sum(nil)[:20]
-
-	if len(myMAC) != len(theirMAC) || subtle.ConstantTimeCompare(myMAC, theirMAC) == 0 {
-		return errors.New("bad signature MAC in encrypted signature")
-	}
-
-	aesCipher, err := aes.NewCipher(keys.c[:])
-	if err != nil {
-		panic(err.Error())
-	}
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(encryptedSig, encryptedSig)
-
-	sig := encryptedSig
-	sig, ok1 := c.TheirPublicKey.Parse(sig)
-	keyId, sig, ok2 := getU32(sig)
-	if !ok1 || !ok2 {
-		return errors.New("otr: corrupt encrypted signature")
-	}
-
-	var verifyData []byte
-	if xFirst {
-		verifyData = appendMPI(verifyData, c.gx)
-		verifyData = appendMPI(verifyData, c.gy)
-	} else {
-		verifyData = appendMPI(verifyData, c.gy)
-		verifyData = appendMPI(verifyData, c.gx)
-	}
-	verifyData = c.TheirPublicKey.Serialize(verifyData)
-	verifyData = appendU32(verifyData, keyId)
-
-	mac = hmac.New(sha256.New, keys.m1[:])
-	mac.Write(verifyData)
-	mb := mac.Sum(nil)
-
-	sig, ok1 = c.TheirPublicKey.Verify(mb, sig)
-	if !ok1 {
-		return errors.New("bad signature in encrypted signature")
-	}
-	if len(sig) > 0 {
-		return errors.New("corrupt encrypted signature")
-	}
-
-	c.theirKeyId = keyId
-	zero(c.theirLastCtr[:])
-	return nil
-}
-
-func (c *Conversation) processRevealSig(in []byte) error {
-	r, in, ok1 := getData(in)
-	encryptedSig, in, ok2 := getData(in)
-	theirMAC := in
-	if !ok1 || !ok2 || len(theirMAC) != 20 {
-		return errors.New("otr: corrupt reveal signature message")
-	}
-
-	aesCipher, err := aes.NewCipher(r)
-	if err != nil {
-		return errors.New("otr: cannot create AES cipher from reveal signature message: " + err.Error())
-	}
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(c.gxBytes, c.gxBytes)
-	h := sha256.New()
-	h.Write(c.gxBytes)
-	digest := h.Sum(nil)
-	if len(digest) != len(c.digest) || subtle.ConstantTimeCompare(digest, c.digest[:]) == 0 {
-		return errors.New("otr: bad commit MAC in reveal signature message")
-	}
-	var rest []byte
-	c.gx, rest, ok1 = getMPI(c.gxBytes)
-	if !ok1 || len(rest) > 0 {
-		return errors.New("otr: gx corrupt after decryption")
-	}
-	if c.gx.Cmp(g) < 0 || c.gx.Cmp(pMinus2) > 0 {
-		return errors.New("otr: DH value out of range")
-	}
-	s := new(big.Int).Exp(c.gx, c.y, p)
-	c.calcAKEKeys(s)
-
-	if err := c.processEncryptedSig(encryptedSig, theirMAC, &c.revealKeys, true /* gx comes first */); err != nil {
-		return errors.New("otr: in reveal signature message: " + err.Error())
-	}
-
-	c.theirCurrentDHPub = c.gx
-	c.theirLastDHPub = nil
-
-	return nil
-}
-
-func (c *Conversation) generateSig() []byte {
-	c.myKeyId++
-
-	encryptedSig, mac := c.generateEncryptedSignature(&c.sigKeys, false /* gy comes first */)
-
-	c.myCurrentDHPub = c.gy
-	c.myCurrentDHPriv = c.y
-	c.rotateDHKeys()
-	incCounter(&c.myCounter)
-
-	var ret []byte
-	ret = appendU16(ret, 2)
-	ret = append(ret, msgTypeSig)
-	ret = append(ret, encryptedSig...)
-	ret = append(ret, mac[:macPrefixBytes]...)
-	return ret
-}
-
-func (c *Conversation) processSig(in []byte) error {
-	encryptedSig, in, ok1 := getData(in)
-	theirMAC := in
-	if !ok1 || len(theirMAC) != macPrefixBytes {
-		return errors.New("otr: corrupt signature message")
-	}
-
-	if err := c.processEncryptedSig(encryptedSig, theirMAC, &c.sigKeys, false /* gy comes first */); err != nil {
-		return errors.New("otr: in signature message: " + err.Error())
-	}
-
-	c.theirCurrentDHPub = c.gy
-	c.theirLastDHPub = nil
-
-	return nil
-}
-
-func (c *Conversation) rotateDHKeys() {
-	// evict slots using our retired key id
-	for i := range c.keySlots {
-		slot := &c.keySlots[i]
-		if slot.used && slot.myKeyId == c.myKeyId-1 {
-			slot.used = false
-			c.oldMACs = append(c.oldMACs, slot.recvMACKey...)
-		}
-	}
-
-	c.myLastDHPriv = c.myCurrentDHPriv
-	c.myLastDHPub = c.myCurrentDHPub
-
-	var xBytes [dhPrivateBytes]byte
-	c.myCurrentDHPriv = c.randMPI(xBytes[:])
-	c.myCurrentDHPub = new(big.Int).Exp(g, c.myCurrentDHPriv, p)
-	c.myKeyId++
-}
-
-func (c *Conversation) processData(in []byte) (out []byte, tlvs []tlv, err error) {
-	origIn := in
-	flags, in, ok1 := getU8(in)
-	theirKeyId, in, ok2 := getU32(in)
-	myKeyId, in, ok3 := getU32(in)
-	y, in, ok4 := getMPI(in)
-	counter, in, ok5 := getNBytes(in, 8)
-	encrypted, in, ok6 := getData(in)
-	macedData := origIn[:len(origIn)-len(in)]
-	theirMAC, in, ok7 := getNBytes(in, macPrefixBytes)
-	_, in, ok8 := getData(in)
-	if !ok1 || !ok2 || !ok3 || !ok4 || !ok5 || !ok6 || !ok7 || !ok8 || len(in) > 0 {
-		err = errors.New("otr: corrupt data message")
-		return
-	}
-
-	ignoreErrors := flags&1 != 0
-
-	slot, err := c.calcDataKeys(myKeyId, theirKeyId)
-	if err != nil {
-		if ignoreErrors {
-			err = nil
-		}
-		return
-	}
-
-	mac := hmac.New(sha1.New, slot.recvMACKey)
-	mac.Write([]byte{0, 2, 3})
-	mac.Write(macedData)
-	myMAC := mac.Sum(nil)
-	if len(myMAC) != len(theirMAC) || subtle.ConstantTimeCompare(myMAC, theirMAC) == 0 {
-		if !ignoreErrors {
-			err = errors.New("otr: bad MAC on data message")
-		}
-		return
-	}
-
-	if bytes.Compare(counter, slot.theirLastCtr[:]) <= 0 {
-		err = errors.New("otr: counter regressed")
-		return
-	}
-	copy(slot.theirLastCtr[:], counter)
-
-	var iv [aes.BlockSize]byte
-	copy(iv[:], counter)
-	aesCipher, err := aes.NewCipher(slot.recvAESKey)
-	if err != nil {
-		panic(err.Error())
-	}
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(encrypted, encrypted)
-	decrypted := encrypted
-
-	if myKeyId == c.myKeyId {
-		c.rotateDHKeys()
-	}
-	if theirKeyId == c.theirKeyId {
-		// evict slots using their retired key id
-		for i := range c.keySlots {
-			slot := &c.keySlots[i]
-			if slot.used && slot.theirKeyId == theirKeyId-1 {
-				slot.used = false
-				c.oldMACs = append(c.oldMACs, slot.recvMACKey...)
-			}
-		}
-
-		c.theirLastDHPub = c.theirCurrentDHPub
-		c.theirKeyId++
-		c.theirCurrentDHPub = y
-	}
-
-	if nulPos := bytes.IndexByte(decrypted, 0); nulPos >= 0 {
-		out = decrypted[:nulPos]
-		tlvData := decrypted[nulPos+1:]
-		for len(tlvData) > 0 {
-			var t tlv
-			var ok1, ok2, ok3 bool
-
-			t.typ, tlvData, ok1 = getU16(tlvData)
-			t.length, tlvData, ok2 = getU16(tlvData)
-			t.data, tlvData, ok3 = getNBytes(tlvData, int(t.length))
-			if !ok1 || !ok2 || !ok3 {
-				err = errors.New("otr: corrupt tlv data")
-				return
-			}
-			tlvs = append(tlvs, t)
-		}
-	} else {
-		out = decrypted
-	}
-
-	return
-}
-
-func (c *Conversation) generateData(msg []byte, extra *tlv) []byte {
-	slot, err := c.calcDataKeys(c.myKeyId-1, c.theirKeyId)
-	if err != nil {
-		panic("otr: failed to generate sending keys: " + err.Error())
-	}
-
-	var plaintext []byte
-	plaintext = append(plaintext, msg...)
-	plaintext = append(plaintext, 0)
-
-	padding := paddingGranularity - ((len(plaintext) + 4) % paddingGranularity)
-	plaintext = appendU16(plaintext, tlvTypePadding)
-	plaintext = appendU16(plaintext, uint16(padding))
-	for i := 0; i < padding; i++ {
-		plaintext = append(plaintext, 0)
-	}
-
-	if extra != nil {
-		plaintext = appendU16(plaintext, extra.typ)
-		plaintext = appendU16(plaintext, uint16(len(extra.data)))
-		plaintext = append(plaintext, extra.data...)
-	}
-
-	encrypted := make([]byte, len(plaintext))
-
-	var iv [aes.BlockSize]byte
-	copy(iv[:], c.myCounter[:])
-	aesCipher, err := aes.NewCipher(slot.sendAESKey)
-	if err != nil {
-		panic(err.Error())
-	}
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(encrypted, plaintext)
-
-	var ret []byte
-	ret = appendU16(ret, 2)
-	ret = append(ret, msgTypeData)
-	ret = append(ret, 0 /* flags */)
-	ret = appendU32(ret, c.myKeyId-1)
-	ret = appendU32(ret, c.theirKeyId)
-	ret = appendMPI(ret, c.myCurrentDHPub)
-	ret = append(ret, c.myCounter[:]...)
-	ret = appendData(ret, encrypted)
-
-	mac := hmac.New(sha1.New, slot.sendMACKey)
-	mac.Write(ret)
-	ret = append(ret, mac.Sum(nil)[:macPrefixBytes]...)
-	ret = appendData(ret, c.oldMACs)
-	c.oldMACs = nil
-	incCounter(&c.myCounter)
-
-	return ret
-}
-
-func incCounter(counter *[8]byte) {
-	for i := 7; i >= 0; i-- {
-		counter[i]++
-		if counter[i] > 0 {
-			break
-		}
-	}
-}
-
-// calcDataKeys computes the keys used to encrypt a data message given the key
-// IDs.
-func (c *Conversation) calcDataKeys(myKeyId, theirKeyId uint32) (slot *keySlot, err error) {
-	// Check for a cache hit.
-	for i := range c.keySlots {
-		slot = &c.keySlots[i]
-		if slot.used && slot.theirKeyId == theirKeyId && slot.myKeyId == myKeyId {
-			return
-		}
-	}
-
-	// Find an empty slot to write into.
-	slot = nil
-	for i := range c.keySlots {
-		if !c.keySlots[i].used {
-			slot = &c.keySlots[i]
-			break
-		}
-	}
-	if slot == nil {
-		return nil, errors.New("otr: internal error: no more key slots")
-	}
-
-	var myPriv, myPub, theirPub *big.Int
-
-	if myKeyId == c.myKeyId {
-		myPriv = c.myCurrentDHPriv
-		myPub = c.myCurrentDHPub
-	} else if myKeyId == c.myKeyId-1 {
-		myPriv = c.myLastDHPriv
-		myPub = c.myLastDHPub
-	} else {
-		err = errors.New("otr: peer requested keyid " + strconv.FormatUint(uint64(myKeyId), 10) + " when I'm on " + strconv.FormatUint(uint64(c.myKeyId), 10))
-		return
-	}
-
-	if theirKeyId == c.theirKeyId {
-		theirPub = c.theirCurrentDHPub
-	} else if theirKeyId == c.theirKeyId-1 && c.theirLastDHPub != nil {
-		theirPub = c.theirLastDHPub
-	} else {
-		err = errors.New("otr: peer requested keyid " + strconv.FormatUint(uint64(myKeyId), 10) + " when they're on " + strconv.FormatUint(uint64(c.myKeyId), 10))
-		return
-	}
-
-	var sendPrefixByte, recvPrefixByte [1]byte
-
-	if myPub.Cmp(theirPub) > 0 {
-		// we're the high end
-		sendPrefixByte[0], recvPrefixByte[0] = 1, 2
-	} else {
-		// we're the low end
-		sendPrefixByte[0], recvPrefixByte[0] = 2, 1
-	}
-
-	s := new(big.Int).Exp(theirPub, myPriv, p)
-	sBytes := appendMPI(nil, s)
-
-	h := sha1.New()
-	h.Write(sendPrefixByte[:])
-	h.Write(sBytes)
-	slot.sendAESKey = h.Sum(slot.sendAESKey[:0])[:16]
-
-	h.Reset()
-	h.Write(slot.sendAESKey)
-	slot.sendMACKey = h.Sum(slot.sendMACKey[:0])
-
-	h.Reset()
-	h.Write(recvPrefixByte[:])
-	h.Write(sBytes)
-	slot.recvAESKey = h.Sum(slot.recvAESKey[:0])[:16]
-
-	h.Reset()
-	h.Write(slot.recvAESKey)
-	slot.recvMACKey = h.Sum(slot.recvMACKey[:0])
-
-	slot.theirKeyId = theirKeyId
-	slot.myKeyId = myKeyId
-	slot.used = true
-
-	zero(slot.theirLastCtr[:])
-	return
-}
-
-func (c *Conversation) calcAKEKeys(s *big.Int) {
-	mpi := appendMPI(nil, s)
-	h := sha256.New()
-
-	var cBytes [32]byte
-	hashWithPrefix(c.SSID[:], 0, mpi, h)
-
-	hashWithPrefix(cBytes[:], 1, mpi, h)
-	copy(c.revealKeys.c[:], cBytes[:16])
-	copy(c.sigKeys.c[:], cBytes[16:])
-
-	hashWithPrefix(c.revealKeys.m1[:], 2, mpi, h)
-	hashWithPrefix(c.revealKeys.m2[:], 3, mpi, h)
-	hashWithPrefix(c.sigKeys.m1[:], 4, mpi, h)
-	hashWithPrefix(c.sigKeys.m2[:], 5, mpi, h)
-}
-
-func hashWithPrefix(out []byte, prefix byte, in []byte, h hash.Hash) {
-	h.Reset()
-	var p [1]byte
-	p[0] = prefix
-	h.Write(p[:])
-	h.Write(in)
-	if len(out) == h.Size() {
-		h.Sum(out[:0])
-	} else {
-		digest := h.Sum(nil)
-		copy(out, digest)
-	}
-}
-
-func (c *Conversation) encode(msg []byte) [][]byte {
-	b64 := make([]byte, base64.StdEncoding.EncodedLen(len(msg))+len(msgPrefix)+1)
-	base64.StdEncoding.Encode(b64[len(msgPrefix):], msg)
-	copy(b64, msgPrefix)
-	b64[len(b64)-1] = '.'
-
-	if c.FragmentSize < minFragmentSize || len(b64) <= c.FragmentSize {
-		// We can encode this in a single fragment.
-		return [][]byte{b64}
-	}
-
-	// We have to fragment this message.
-	var ret [][]byte
-	bytesPerFragment := c.FragmentSize - minFragmentSize
-	numFragments := (len(b64) + bytesPerFragment) / bytesPerFragment
-
-	for i := 0; i < numFragments; i++ {
-		frag := []byte("?OTR," + strconv.Itoa(i+1) + "," + strconv.Itoa(numFragments) + ",")
-		todo := bytesPerFragment
-		if todo > len(b64) {
-			todo = len(b64)
-		}
-		frag = append(frag, b64[:todo]...)
-		b64 = b64[todo:]
-		frag = append(frag, ',')
-		ret = append(ret, frag)
-	}
-
-	return ret
-}
-
-func (c *Conversation) reset() {
-	c.myKeyId = 0
-
-	for i := range c.keySlots {
-		c.keySlots[i].used = false
-	}
-}
-
-type PublicKey struct {
-	dsa.PublicKey
-}
-
-func (pk *PublicKey) Parse(in []byte) ([]byte, bool) {
-	var ok bool
-	var pubKeyType uint16
-
-	if pubKeyType, in, ok = getU16(in); !ok || pubKeyType != 0 {
-		return nil, false
-	}
-	if pk.P, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-	if pk.Q, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-	if pk.G, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-	if pk.Y, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-
-	return in, true
-}
-
-func (pk *PublicKey) Serialize(in []byte) []byte {
-	in = appendU16(in, 0)
-	in = appendMPI(in, pk.P)
-	in = appendMPI(in, pk.Q)
-	in = appendMPI(in, pk.G)
-	in = appendMPI(in, pk.Y)
-	return in
-}
-
-// Fingerprint returns the 20-byte, binary fingerprint of the PublicKey.
-func (pk *PublicKey) Fingerprint() []byte {
-	b := pk.Serialize(nil)
-	h := sha1.New()
-	h.Write(b[2:])
-	return h.Sum(nil)
-}
-
-func (pk *PublicKey) Verify(hashed, sig []byte) ([]byte, bool) {
-	if len(sig) != 2*dsaSubgroupBytes {
-		return nil, false
-	}
-	r := new(big.Int).SetBytes(sig[:dsaSubgroupBytes])
-	s := new(big.Int).SetBytes(sig[dsaSubgroupBytes:])
-	ok := dsa.Verify(&pk.PublicKey, hashed, r, s)
-	return sig[dsaSubgroupBytes*2:], ok
-}
-
-type PrivateKey struct {
-	PublicKey
-	dsa.PrivateKey
-}
-
-func (priv *PrivateKey) Sign(rand io.Reader, hashed []byte) []byte {
-	r, s, err := dsa.Sign(rand, &priv.PrivateKey, hashed)
-	if err != nil {
-		panic(err.Error())
-	}
-	rBytes := r.Bytes()
-	sBytes := s.Bytes()
-	if len(rBytes) > dsaSubgroupBytes || len(sBytes) > dsaSubgroupBytes {
-		panic("DSA signature too large")
-	}
-
-	out := make([]byte, 2*dsaSubgroupBytes)
-	copy(out[dsaSubgroupBytes-len(rBytes):], rBytes)
-	copy(out[len(out)-len(sBytes):], sBytes)
-	return out
-}
-
-func (priv *PrivateKey) Serialize(in []byte) []byte {
-	in = priv.PublicKey.Serialize(in)
-	in = appendMPI(in, priv.PrivateKey.X)
-	return in
-}
-
-func (priv *PrivateKey) Parse(in []byte) ([]byte, bool) {
-	in, ok := priv.PublicKey.Parse(in)
-	if !ok {
-		return in, ok
-	}
-	priv.PrivateKey.PublicKey = priv.PublicKey.PublicKey
-	priv.PrivateKey.X, in, ok = getMPI(in)
-	return in, ok
-}
-
-func (priv *PrivateKey) Generate(rand io.Reader) {
-	if err := dsa.GenerateParameters(&priv.PrivateKey.PublicKey.Parameters, rand, dsa.L1024N160); err != nil {
-		panic(err.Error())
-	}
-	if err := dsa.GenerateKey(&priv.PrivateKey, rand); err != nil {
-		panic(err.Error())
-	}
-	priv.PublicKey.PublicKey = priv.PrivateKey.PublicKey
-}
-
-func notHex(r rune) bool {
-	if r >= '0' && r <= '9' ||
-		r >= 'a' && r <= 'f' ||
-		r >= 'A' && r <= 'F' {
-		return false
-	}
-
-	return true
-}
-
-// Import parses the contents of a libotr private key file.
-func (priv *PrivateKey) Import(in []byte) bool {
-	mpiStart := []byte(" #")
-
-	mpis := make([]*big.Int, 5)
-
-	for i := 0; i < len(mpis); i++ {
-		start := bytes.Index(in, mpiStart)
-		if start == -1 {
-			return false
-		}
-		in = in[start+len(mpiStart):]
-		end := bytes.IndexFunc(in, notHex)
-		if end == -1 {
-			return false
-		}
-		hexBytes := in[:end]
-		in = in[end:]
-
-		if len(hexBytes)&1 != 0 {
-			return false
-		}
-
-		mpiBytes := make([]byte, len(hexBytes)/2)
-		if _, err := hex.Decode(mpiBytes, hexBytes); err != nil {
-			return false
-		}
-
-		mpis[i] = new(big.Int).SetBytes(mpiBytes)
-	}
-
-	for _, mpi := range mpis {
-		if mpi.Sign() <= 0 {
-			return false
-		}
-	}
-
-	priv.PrivateKey.P = mpis[0]
-	priv.PrivateKey.Q = mpis[1]
-	priv.PrivateKey.G = mpis[2]
-	priv.PrivateKey.Y = mpis[3]
-	priv.PrivateKey.X = mpis[4]
-	priv.PublicKey.PublicKey = priv.PrivateKey.PublicKey
-
-	a := new(big.Int).Exp(priv.PrivateKey.G, priv.PrivateKey.X, priv.PrivateKey.P)
-	return a.Cmp(priv.PrivateKey.Y) == 0
-}
-
-func getU8(in []byte) (uint8, []byte, bool) {
-	if len(in) < 1 {
-		return 0, in, false
-	}
-	return in[0], in[1:], true
-}
-
-func getU16(in []byte) (uint16, []byte, bool) {
-	if len(in) < 2 {
-		return 0, in, false
-	}
-	r := uint16(in[0])<<8 | uint16(in[1])
-	return r, in[2:], true
-}
-
-func getU32(in []byte) (uint32, []byte, bool) {
-	if len(in) < 4 {
-		return 0, in, false
-	}
-	r := uint32(in[0])<<24 | uint32(in[1])<<16 | uint32(in[2])<<8 | uint32(in[3])
-	return r, in[4:], true
-}
-
-func getMPI(in []byte) (*big.Int, []byte, bool) {
-	l, in, ok := getU32(in)
-	if !ok || uint32(len(in)) < l {
-		return nil, in, false
-	}
-	r := new(big.Int).SetBytes(in[:l])
-	return r, in[l:], true
-}
-
-func getData(in []byte) ([]byte, []byte, bool) {
-	l, in, ok := getU32(in)
-	if !ok || uint32(len(in)) < l {
-		return nil, in, false
-	}
-	return in[:l], in[l:], true
-}
-
-func getNBytes(in []byte, n int) ([]byte, []byte, bool) {
-	if len(in) < n {
-		return nil, in, false
-	}
-	return in[:n], in[n:], true
-}
-
-func appendU16(out []byte, v uint16) []byte {
-	out = append(out, byte(v>>8), byte(v))
-	return out
-}
-
-func appendU32(out []byte, v uint32) []byte {
-	out = append(out, byte(v>>24), byte(v>>16), byte(v>>8), byte(v))
-	return out
-}
-
-func appendData(out, v []byte) []byte {
-	out = appendU32(out, uint32(len(v)))
-	out = append(out, v...)
-	return out
-}
-
-func appendMPI(out []byte, v *big.Int) []byte {
-	vBytes := v.Bytes()
-	out = appendU32(out, uint32(len(vBytes)))
-	out = append(out, vBytes...)
-	return out
-}
-
-func appendMPIs(out []byte, mpis ...*big.Int) []byte {
-	for _, mpi := range mpis {
-		out = appendMPI(out, mpi)
-	}
-	return out
-}
-
-func zero(b []byte) {
-	for i := range b {
-		b[i] = 0
-	}
-}
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/otr/smp.go b/pkg/metadata/vendor/golang.org/x/crypto/otr/smp.go
deleted file mode 100644
index dc6de4ee0..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/otr/smp.go
+++ /dev/null
@@ -1,572 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This file implements the Socialist Millionaires Protocol as described in
-// http://www.cypherpunks.ca/otr/Protocol-v2-3.1.0.html. The protocol
-// specification is required in order to understand this code and, where
-// possible, the variable names in the code match up with the spec.
-
-package otr
-
-import (
-	"bytes"
-	"crypto/sha256"
-	"errors"
-	"hash"
-	"math/big"
-)
-
-type smpFailure string
-
-func (s smpFailure) Error() string {
-	return string(s)
-}
-
-var smpFailureError = smpFailure("otr: SMP protocol failed")
-var smpSecretMissingError = smpFailure("otr: mutual secret needed")
-
-const smpVersion = 1
-
-const (
-	smpState1 = iota
-	smpState2
-	smpState3
-	smpState4
-)
-
-type smpState struct {
-	state                  int
-	a2, a3, b2, b3, pb, qb *big.Int
-	g2a, g3a               *big.Int
-	g2, g3                 *big.Int
-	g3b, papb, qaqb, ra    *big.Int
-	saved                  *tlv
-	secret                 *big.Int
-	question               string
-}
-
-func (c *Conversation) startSMP(question string) (tlvs []tlv) {
-	if c.smp.state != smpState1 {
-		tlvs = append(tlvs, c.generateSMPAbort())
-	}
-	tlvs = append(tlvs, c.generateSMP1(question))
-	c.smp.question = ""
-	c.smp.state = smpState2
-	return
-}
-
-func (c *Conversation) resetSMP() {
-	c.smp.state = smpState1
-	c.smp.secret = nil
-	c.smp.question = ""
-}
-
-func (c *Conversation) processSMP(in tlv) (out tlv, complete bool, err error) {
-	data := in.data
-
-	switch in.typ {
-	case tlvTypeSMPAbort:
-		if c.smp.state != smpState1 {
-			err = smpFailureError
-		}
-		c.resetSMP()
-		return
-	case tlvTypeSMP1WithQuestion:
-		// We preprocess this into a SMP1 message.
-		nulPos := bytes.IndexByte(data, 0)
-		if nulPos == -1 {
-			err = errors.New("otr: SMP message with question didn't contain a NUL byte")
-			return
-		}
-		c.smp.question = string(data[:nulPos])
-		data = data[nulPos+1:]
-	}
-
-	numMPIs, data, ok := getU32(data)
-	if !ok || numMPIs > 20 {
-		err = errors.New("otr: corrupt SMP message")
-		return
-	}
-
-	mpis := make([]*big.Int, numMPIs)
-	for i := range mpis {
-		var ok bool
-		mpis[i], data, ok = getMPI(data)
-		if !ok {
-			err = errors.New("otr: corrupt SMP message")
-			return
-		}
-	}
-
-	switch in.typ {
-	case tlvTypeSMP1, tlvTypeSMP1WithQuestion:
-		if c.smp.state != smpState1 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if c.smp.secret == nil {
-			err = smpSecretMissingError
-			return
-		}
-		if err = c.processSMP1(mpis); err != nil {
-			return
-		}
-		c.smp.state = smpState3
-		out = c.generateSMP2()
-	case tlvTypeSMP2:
-		if c.smp.state != smpState2 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if out, err = c.processSMP2(mpis); err != nil {
-			out = c.generateSMPAbort()
-			return
-		}
-		c.smp.state = smpState4
-	case tlvTypeSMP3:
-		if c.smp.state != smpState3 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if out, err = c.processSMP3(mpis); err != nil {
-			return
-		}
-		c.smp.state = smpState1
-		c.smp.secret = nil
-		complete = true
-	case tlvTypeSMP4:
-		if c.smp.state != smpState4 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if err = c.processSMP4(mpis); err != nil {
-			out = c.generateSMPAbort()
-			return
-		}
-		c.smp.state = smpState1
-		c.smp.secret = nil
-		complete = true
-	default:
-		panic("unknown SMP message")
-	}
-
-	return
-}
-
-func (c *Conversation) calcSMPSecret(mutualSecret []byte, weStarted bool) {
-	h := sha256.New()
-	h.Write([]byte{smpVersion})
-	if weStarted {
-		h.Write(c.PrivateKey.PublicKey.Fingerprint())
-		h.Write(c.TheirPublicKey.Fingerprint())
-	} else {
-		h.Write(c.TheirPublicKey.Fingerprint())
-		h.Write(c.PrivateKey.PublicKey.Fingerprint())
-	}
-	h.Write(c.SSID[:])
-	h.Write(mutualSecret)
-	c.smp.secret = new(big.Int).SetBytes(h.Sum(nil))
-}
-
-func (c *Conversation) generateSMP1(question string) tlv {
-	var randBuf [16]byte
-	c.smp.a2 = c.randMPI(randBuf[:])
-	c.smp.a3 = c.randMPI(randBuf[:])
-	g2a := new(big.Int).Exp(g, c.smp.a2, p)
-	g3a := new(big.Int).Exp(g, c.smp.a3, p)
-	h := sha256.New()
-
-	r2 := c.randMPI(randBuf[:])
-	r := new(big.Int).Exp(g, r2, p)
-	c2 := new(big.Int).SetBytes(hashMPIs(h, 1, r))
-	d2 := new(big.Int).Mul(c.smp.a2, c2)
-	d2.Sub(r2, d2)
-	d2.Mod(d2, q)
-	if d2.Sign() < 0 {
-		d2.Add(d2, q)
-	}
-
-	r3 := c.randMPI(randBuf[:])
-	r.Exp(g, r3, p)
-	c3 := new(big.Int).SetBytes(hashMPIs(h, 2, r))
-	d3 := new(big.Int).Mul(c.smp.a3, c3)
-	d3.Sub(r3, d3)
-	d3.Mod(d3, q)
-	if d3.Sign() < 0 {
-		d3.Add(d3, q)
-	}
-
-	var ret tlv
-	if len(question) > 0 {
-		ret.typ = tlvTypeSMP1WithQuestion
-		ret.data = append(ret.data, question...)
-		ret.data = append(ret.data, 0)
-	} else {
-		ret.typ = tlvTypeSMP1
-	}
-	ret.data = appendU32(ret.data, 6)
-	ret.data = appendMPIs(ret.data, g2a, c2, d2, g3a, c3, d3)
-	return ret
-}
-
-func (c *Conversation) processSMP1(mpis []*big.Int) error {
-	if len(mpis) != 6 {
-		return errors.New("otr: incorrect number of arguments in SMP1 message")
-	}
-	g2a := mpis[0]
-	c2 := mpis[1]
-	d2 := mpis[2]
-	g3a := mpis[3]
-	c3 := mpis[4]
-	d3 := mpis[5]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(g, d2, p)
-	s := new(big.Int).Exp(g2a, c2, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	t := new(big.Int).SetBytes(hashMPIs(h, 1, r))
-	if c2.Cmp(t) != 0 {
-		return errors.New("otr: ZKP c2 incorrect in SMP1 message")
-	}
-	r.Exp(g, d3, p)
-	s.Exp(g3a, c3, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	t.SetBytes(hashMPIs(h, 2, r))
-	if c3.Cmp(t) != 0 {
-		return errors.New("otr: ZKP c3 incorrect in SMP1 message")
-	}
-
-	c.smp.g2a = g2a
-	c.smp.g3a = g3a
-	return nil
-}
-
-func (c *Conversation) generateSMP2() tlv {
-	var randBuf [16]byte
-	b2 := c.randMPI(randBuf[:])
-	c.smp.b3 = c.randMPI(randBuf[:])
-	r2 := c.randMPI(randBuf[:])
-	r3 := c.randMPI(randBuf[:])
-	r4 := c.randMPI(randBuf[:])
-	r5 := c.randMPI(randBuf[:])
-	r6 := c.randMPI(randBuf[:])
-
-	g2b := new(big.Int).Exp(g, b2, p)
-	g3b := new(big.Int).Exp(g, c.smp.b3, p)
-
-	r := new(big.Int).Exp(g, r2, p)
-	h := sha256.New()
-	c2 := new(big.Int).SetBytes(hashMPIs(h, 3, r))
-	d2 := new(big.Int).Mul(b2, c2)
-	d2.Sub(r2, d2)
-	d2.Mod(d2, q)
-	if d2.Sign() < 0 {
-		d2.Add(d2, q)
-	}
-
-	r.Exp(g, r3, p)
-	c3 := new(big.Int).SetBytes(hashMPIs(h, 4, r))
-	d3 := new(big.Int).Mul(c.smp.b3, c3)
-	d3.Sub(r3, d3)
-	d3.Mod(d3, q)
-	if d3.Sign() < 0 {
-		d3.Add(d3, q)
-	}
-
-	c.smp.g2 = new(big.Int).Exp(c.smp.g2a, b2, p)
-	c.smp.g3 = new(big.Int).Exp(c.smp.g3a, c.smp.b3, p)
-	c.smp.pb = new(big.Int).Exp(c.smp.g3, r4, p)
-	c.smp.qb = new(big.Int).Exp(g, r4, p)
-	r.Exp(c.smp.g2, c.smp.secret, p)
-	c.smp.qb.Mul(c.smp.qb, r)
-	c.smp.qb.Mod(c.smp.qb, p)
-
-	s := new(big.Int)
-	s.Exp(c.smp.g2, r6, p)
-	r.Exp(g, r5, p)
-	s.Mul(r, s)
-	s.Mod(s, p)
-	r.Exp(c.smp.g3, r5, p)
-	cp := new(big.Int).SetBytes(hashMPIs(h, 5, r, s))
-
-	// D5 = r5 - r4 cP mod q and D6 = r6 - y cP mod q
-
-	s.Mul(r4, cp)
-	r.Sub(r5, s)
-	d5 := new(big.Int).Mod(r, q)
-	if d5.Sign() < 0 {
-		d5.Add(d5, q)
-	}
-
-	s.Mul(c.smp.secret, cp)
-	r.Sub(r6, s)
-	d6 := new(big.Int).Mod(r, q)
-	if d6.Sign() < 0 {
-		d6.Add(d6, q)
-	}
-
-	var ret tlv
-	ret.typ = tlvTypeSMP2
-	ret.data = appendU32(ret.data, 11)
-	ret.data = appendMPIs(ret.data, g2b, c2, d2, g3b, c3, d3, c.smp.pb, c.smp.qb, cp, d5, d6)
-	return ret
-}
-
-func (c *Conversation) processSMP2(mpis []*big.Int) (out tlv, err error) {
-	if len(mpis) != 11 {
-		err = errors.New("otr: incorrect number of arguments in SMP2 message")
-		return
-	}
-	g2b := mpis[0]
-	c2 := mpis[1]
-	d2 := mpis[2]
-	g3b := mpis[3]
-	c3 := mpis[4]
-	d3 := mpis[5]
-	pb := mpis[6]
-	qb := mpis[7]
-	cp := mpis[8]
-	d5 := mpis[9]
-	d6 := mpis[10]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(g, d2, p)
-	s := new(big.Int).Exp(g2b, c2, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	s.SetBytes(hashMPIs(h, 3, r))
-	if c2.Cmp(s) != 0 {
-		err = errors.New("otr: ZKP c2 failed in SMP2 message")
-		return
-	}
-
-	r.Exp(g, d3, p)
-	s.Exp(g3b, c3, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	s.SetBytes(hashMPIs(h, 4, r))
-	if c3.Cmp(s) != 0 {
-		err = errors.New("otr: ZKP c3 failed in SMP2 message")
-		return
-	}
-
-	c.smp.g2 = new(big.Int).Exp(g2b, c.smp.a2, p)
-	c.smp.g3 = new(big.Int).Exp(g3b, c.smp.a3, p)
-
-	r.Exp(g, d5, p)
-	s.Exp(c.smp.g2, d6, p)
-	r.Mul(r, s)
-	s.Exp(qb, cp, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(c.smp.g3, d5, p)
-	t := new(big.Int).Exp(pb, cp, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 5, s, r))
-	if cp.Cmp(t) != 0 {
-		err = errors.New("otr: ZKP cP failed in SMP2 message")
-		return
-	}
-
-	var randBuf [16]byte
-	r4 := c.randMPI(randBuf[:])
-	r5 := c.randMPI(randBuf[:])
-	r6 := c.randMPI(randBuf[:])
-	r7 := c.randMPI(randBuf[:])
-
-	pa := new(big.Int).Exp(c.smp.g3, r4, p)
-	r.Exp(c.smp.g2, c.smp.secret, p)
-	qa := new(big.Int).Exp(g, r4, p)
-	qa.Mul(qa, r)
-	qa.Mod(qa, p)
-
-	r.Exp(g, r5, p)
-	s.Exp(c.smp.g2, r6, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(c.smp.g3, r5, p)
-	cp.SetBytes(hashMPIs(h, 6, s, r))
-
-	r.Mul(r4, cp)
-	d5 = new(big.Int).Sub(r5, r)
-	d5.Mod(d5, q)
-	if d5.Sign() < 0 {
-		d5.Add(d5, q)
-	}
-
-	r.Mul(c.smp.secret, cp)
-	d6 = new(big.Int).Sub(r6, r)
-	d6.Mod(d6, q)
-	if d6.Sign() < 0 {
-		d6.Add(d6, q)
-	}
-
-	r.ModInverse(qb, p)
-	qaqb := new(big.Int).Mul(qa, r)
-	qaqb.Mod(qaqb, p)
-
-	ra := new(big.Int).Exp(qaqb, c.smp.a3, p)
-	r.Exp(qaqb, r7, p)
-	s.Exp(g, r7, p)
-	cr := new(big.Int).SetBytes(hashMPIs(h, 7, s, r))
-
-	r.Mul(c.smp.a3, cr)
-	d7 := new(big.Int).Sub(r7, r)
-	d7.Mod(d7, q)
-	if d7.Sign() < 0 {
-		d7.Add(d7, q)
-	}
-
-	c.smp.g3b = g3b
-	c.smp.qaqb = qaqb
-
-	r.ModInverse(pb, p)
-	c.smp.papb = new(big.Int).Mul(pa, r)
-	c.smp.papb.Mod(c.smp.papb, p)
-	c.smp.ra = ra
-
-	out.typ = tlvTypeSMP3
-	out.data = appendU32(out.data, 8)
-	out.data = appendMPIs(out.data, pa, qa, cp, d5, d6, ra, cr, d7)
-	return
-}
-
-func (c *Conversation) processSMP3(mpis []*big.Int) (out tlv, err error) {
-	if len(mpis) != 8 {
-		err = errors.New("otr: incorrect number of arguments in SMP3 message")
-		return
-	}
-	pa := mpis[0]
-	qa := mpis[1]
-	cp := mpis[2]
-	d5 := mpis[3]
-	d6 := mpis[4]
-	ra := mpis[5]
-	cr := mpis[6]
-	d7 := mpis[7]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(g, d5, p)
-	s := new(big.Int).Exp(c.smp.g2, d6, p)
-	r.Mul(r, s)
-	s.Exp(qa, cp, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(c.smp.g3, d5, p)
-	t := new(big.Int).Exp(pa, cp, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 6, s, r))
-	if t.Cmp(cp) != 0 {
-		err = errors.New("otr: ZKP cP failed in SMP3 message")
-		return
-	}
-
-	r.ModInverse(c.smp.qb, p)
-	qaqb := new(big.Int).Mul(qa, r)
-	qaqb.Mod(qaqb, p)
-
-	r.Exp(qaqb, d7, p)
-	s.Exp(ra, cr, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(g, d7, p)
-	t.Exp(c.smp.g3a, cr, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 7, s, r))
-	if t.Cmp(cr) != 0 {
-		err = errors.New("otr: ZKP cR failed in SMP3 message")
-		return
-	}
-
-	var randBuf [16]byte
-	r7 := c.randMPI(randBuf[:])
-	rb := new(big.Int).Exp(qaqb, c.smp.b3, p)
-
-	r.Exp(qaqb, r7, p)
-	s.Exp(g, r7, p)
-	cr = new(big.Int).SetBytes(hashMPIs(h, 8, s, r))
-
-	r.Mul(c.smp.b3, cr)
-	d7 = new(big.Int).Sub(r7, r)
-	d7.Mod(d7, q)
-	if d7.Sign() < 0 {
-		d7.Add(d7, q)
-	}
-
-	out.typ = tlvTypeSMP4
-	out.data = appendU32(out.data, 3)
-	out.data = appendMPIs(out.data, rb, cr, d7)
-
-	r.ModInverse(c.smp.pb, p)
-	r.Mul(pa, r)
-	r.Mod(r, p)
-	s.Exp(ra, c.smp.b3, p)
-	if r.Cmp(s) != 0 {
-		err = smpFailureError
-	}
-
-	return
-}
-
-func (c *Conversation) processSMP4(mpis []*big.Int) error {
-	if len(mpis) != 3 {
-		return errors.New("otr: incorrect number of arguments in SMP4 message")
-	}
-	rb := mpis[0]
-	cr := mpis[1]
-	d7 := mpis[2]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(c.smp.qaqb, d7, p)
-	s := new(big.Int).Exp(rb, cr, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(g, d7, p)
-	t := new(big.Int).Exp(c.smp.g3b, cr, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 8, s, r))
-	if t.Cmp(cr) != 0 {
-		return errors.New("otr: ZKP cR failed in SMP4 message")
-	}
-
-	r.Exp(rb, c.smp.a3, p)
-	if r.Cmp(c.smp.papb) != 0 {
-		return smpFailureError
-	}
-
-	return nil
-}
-
-func (c *Conversation) generateSMPAbort() tlv {
-	return tlv{typ: tlvTypeSMPAbort}
-}
-
-func hashMPIs(h hash.Hash, magic byte, mpis ...*big.Int) []byte {
-	if h != nil {
-		h.Reset()
-	} else {
-		h = sha256.New()
-	}
-
-	h.Write([]byte{magic})
-	for _, mpi := range mpis {
-		h.Write(appendMPI(nil, mpi))
-	}
-	return h.Sum(nil)
-}
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/ssh/test/doc.go b/pkg/metadata/vendor/golang.org/x/crypto/ssh/test/doc.go
deleted file mode 100644
index 198f0ca1e..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/ssh/test/doc.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package test contains integration tests for the
-// golang.org/x/crypto/ssh package.
-package test // import "golang.org/x/crypto/ssh/test"
diff --git a/pkg/metadata/vendor/golang.org/x/crypto/ssh/test/sshd_test_pw.c b/pkg/metadata/vendor/golang.org/x/crypto/ssh/test/sshd_test_pw.c
deleted file mode 100644
index 2794a563a..000000000
--- a/pkg/metadata/vendor/golang.org/x/crypto/ssh/test/sshd_test_pw.c
+++ /dev/null
@@ -1,173 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// sshd_test_pw.c
-// Wrapper to inject test password data for sshd PAM authentication
-//
-// This wrapper implements custom versions of getpwnam, getpwnam_r,
-// getspnam and getspnam_r. These functions first call their real
-// libc versions, then check if the requested user matches test user
-// specified in env variable TEST_USER and if so replace the password
-// with crypted() value of TEST_PASSWD env variable.
-//
-// Compile:
-// gcc -Wall -shared -o sshd_test_pw.so -fPIC sshd_test_pw.c
-//
-// Compile with debug:
-// gcc -DVERBOSE -Wall -shared -o sshd_test_pw.so -fPIC sshd_test_pw.c
-//
-// Run sshd:
-// LD_PRELOAD="sshd_test_pw.so" TEST_USER="..." TEST_PASSWD="..." sshd ...
-
-// +build ignore
-
-#define _GNU_SOURCE
-#include <string.h>
-#include <pwd.h>
-#include <shadow.h>
-#include <dlfcn.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-
-#ifdef VERBOSE
-#define DEBUG(X...) fprintf(stderr, X)
-#else
-#define DEBUG(X...) while (0) { }
-#endif
-
-/* crypt() password */
-static char *
-pwhash(char *passwd) {
-  return strdup(crypt(passwd, "$6$"));
-}
-
-/* Pointers to real functions in libc */
-static struct passwd * (*real_getpwnam)(const char *) = NULL;
-static int (*real_getpwnam_r)(const char *, struct passwd *, char *, size_t, struct passwd **) = NULL;
-static struct spwd * (*real_getspnam)(const char *) = NULL;
-static int (*real_getspnam_r)(const char *, struct spwd *, char *, size_t, struct spwd **) = NULL;
-
-/* Cached test user and test password */
-static char *test_user = NULL;
-static char *test_passwd_hash = NULL;
-
-static void
-init(void) {
-  /* Fetch real libc function pointers */
-  real_getpwnam = dlsym(RTLD_NEXT, "getpwnam");
-  real_getpwnam_r = dlsym(RTLD_NEXT, "getpwnam_r");
-  real_getspnam = dlsym(RTLD_NEXT, "getspnam");
-  real_getspnam_r = dlsym(RTLD_NEXT, "getspnam_r");
-  
-  /* abort if env variables are not defined */
-  if (getenv("TEST_USER") == NULL || getenv("TEST_PASSWD") == NULL) {
-    fprintf(stderr, "env variables TEST_USER and TEST_PASSWD are missing\n");
-    abort();
-  }
-
-  /* Fetch test user and test password from env */
-  test_user = strdup(getenv("TEST_USER"));
-  test_passwd_hash = pwhash(getenv("TEST_PASSWD"));
-
-  DEBUG("sshd_test_pw init():\n");
-  DEBUG("\treal_getpwnam: %p\n", real_getpwnam);
-  DEBUG("\treal_getpwnam_r: %p\n", real_getpwnam_r);
-  DEBUG("\treal_getspnam: %p\n", real_getspnam);
-  DEBUG("\treal_getspnam_r: %p\n", real_getspnam_r);
-  DEBUG("\tTEST_USER: '%s'\n", test_user);
-  DEBUG("\tTEST_PASSWD: '%s'\n", getenv("TEST_PASSWD"));
-  DEBUG("\tTEST_PASSWD_HASH: '%s'\n", test_passwd_hash);
-}
-
-static int
-is_test_user(const char *name) {
-  if (test_user != NULL && strcmp(test_user, name) == 0)
-    return 1;
-  return 0;
-}
-
-/* getpwnam */
-
-struct passwd *
-getpwnam(const char *name) {
-  struct passwd *pw;
-
-  DEBUG("sshd_test_pw getpwnam(%s)\n", name);
-  
-  if (real_getpwnam == NULL)
-    init();
-  if ((pw = real_getpwnam(name)) == NULL)
-    return NULL;
-
-  if (is_test_user(name))
-    pw->pw_passwd = strdup(test_passwd_hash);
-      
-  return pw;
-}
-
-/* getpwnam_r */
-
-int
-getpwnam_r(const char *name,
-	   struct passwd *pwd,
-	   char *buf,
-	   size_t buflen,
-	   struct passwd **result) {
-  int r;
-
-  DEBUG("sshd_test_pw getpwnam_r(%s)\n", name);
-  
-  if (real_getpwnam_r == NULL)
-    init();
-  if ((r = real_getpwnam_r(name, pwd, buf, buflen, result)) != 0 || *result == NULL)
-    return r;
-
-  if (is_test_user(name))
-    pwd->pw_passwd = strdup(test_passwd_hash);
-  
-  return 0;
-}
-
-/* getspnam */
-
-struct spwd *
-getspnam(const char *name) {
-  struct spwd *sp;
-
-  DEBUG("sshd_test_pw getspnam(%s)\n", name);
-  
-  if (real_getspnam == NULL)
-    init();
-  if ((sp = real_getspnam(name)) == NULL)
-    return NULL;
-
-  if (is_test_user(name))
-    sp->sp_pwdp = strdup(test_passwd_hash);
-  
-  return sp;
-}
-
-/* getspnam_r */
-
-int
-getspnam_r(const char *name,
-	   struct spwd *spbuf,
-	   char *buf,
-	   size_t buflen,
-	   struct spwd **spbufp) {
-  int r;
-
-  DEBUG("sshd_test_pw getspnam_r(%s)\n", name);
-  
-  if (real_getspnam_r == NULL)
-    init();
-  if ((r = real_getspnam_r(name, spbuf, buf, buflen, spbufp)) != 0)
-    return r;
-
-  if (is_test_user(name))
-    spbuf->sp_pwdp = strdup(test_passwd_hash);
-  
-  return r;
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/AUTHORS b/pkg/metadata/vendor/golang.org/x/sys/AUTHORS
new file mode 100644
index 000000000..15167cd74
--- /dev/null
+++ b/pkg/metadata/vendor/golang.org/x/sys/AUTHORS
@@ -0,0 +1,3 @@
+# This source code refers to The Go Authors for copyright purposes.
+# The master list of authors is in the main Go distribution,
+# visible at http://tip.golang.org/AUTHORS.
diff --git a/pkg/metadata/vendor/golang.org/x/sys/CONTRIBUTORS b/pkg/metadata/vendor/golang.org/x/sys/CONTRIBUTORS
new file mode 100644
index 000000000..1c4577e96
--- /dev/null
+++ b/pkg/metadata/vendor/golang.org/x/sys/CONTRIBUTORS
@@ -0,0 +1,3 @@
+# This source code was written by the Go contributors.
+# The master list of contributors is in the main Go distribution,
+# visible at http://tip.golang.org/CONTRIBUTORS.
diff --git a/pkg/metadata/vendor/golang.org/x/sys/README.md b/pkg/metadata/vendor/golang.org/x/sys/README.md
deleted file mode 100644
index ef6c9e59c..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/README.md
+++ /dev/null
@@ -1,18 +0,0 @@
-# sys
-
-This repository holds supplemental Go packages for low-level interactions with
-the operating system.
-
-## Download/Install
-
-The easiest way to install is to run `go get -u golang.org/x/sys`. You can
-also manually git clone the repository to `$GOPATH/src/golang.org/x/sys`.
-
-## Report Issues / Send Patches
-
-This repository uses Gerrit for code changes. To learn how to submit changes to
-this repository, see https://golang.org/doc/contribute.html.
-
-The main issue tracker for the sys repository is located at
-https://github.com/golang/go/issues. Prefix your issue with "x/sys:" in the
-subject line, so it is easy to find.
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/asm_aix_ppc64.s b/pkg/metadata/vendor/golang.org/x/sys/cpu/asm_aix_ppc64.s
deleted file mode 100644
index 06f84b855..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/asm_aix_ppc64.s
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !gccgo
-
-#include "textflag.h"
-
-//
-// System calls for ppc64, AIX are implemented in runtime/syscall_aix.go
-//
-
-TEXT ·syscall6(SB),NOSPLIT,$0-88
-	JMP	syscall·syscall6(SB)
-
-TEXT ·rawSyscall6(SB),NOSPLIT,$0-88
-	JMP	syscall·rawSyscall6(SB)
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/byteorder.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/byteorder.go
deleted file mode 100644
index ed8da8dea..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/byteorder.go
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cpu
-
-import (
-	"runtime"
-)
-
-// byteOrder is a subset of encoding/binary.ByteOrder.
-type byteOrder interface {
-	Uint32([]byte) uint32
-	Uint64([]byte) uint64
-}
-
-type littleEndian struct{}
-type bigEndian struct{}
-
-func (littleEndian) Uint32(b []byte) uint32 {
-	_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
-	return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
-}
-
-func (littleEndian) Uint64(b []byte) uint64 {
-	_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
-	return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
-		uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
-}
-
-func (bigEndian) Uint32(b []byte) uint32 {
-	_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
-	return uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
-}
-
-func (bigEndian) Uint64(b []byte) uint64 {
-	_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
-	return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
-		uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
-}
-
-// hostByteOrder returns binary.LittleEndian on little-endian machines and
-// binary.BigEndian on big-endian machines.
-func hostByteOrder() byteOrder {
-	switch runtime.GOARCH {
-	case "386", "amd64", "amd64p32",
-		"arm", "arm64",
-		"mipsle", "mips64le", "mips64p32le",
-		"ppc64le",
-		"riscv", "riscv64":
-		return littleEndian{}
-	case "armbe", "arm64be",
-		"mips", "mips64", "mips64p32",
-		"ppc", "ppc64",
-		"s390", "s390x",
-		"sparc", "sparc64":
-		return bigEndian{}
-	}
-	panic("unknown architecture")
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu.go
deleted file mode 100644
index e44deb757..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu.go
+++ /dev/null
@@ -1,171 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package cpu implements processor feature detection for
-// various CPU architectures.
-package cpu
-
-// Initialized reports whether the CPU features were initialized.
-//
-// For some GOOS/GOARCH combinations initialization of the CPU features depends
-// on reading an operating specific file, e.g. /proc/self/auxv on linux/arm
-// Initialized will report false if reading the file fails.
-var Initialized bool
-
-// CacheLinePad is used to pad structs to avoid false sharing.
-type CacheLinePad struct{ _ [cacheLineSize]byte }
-
-// X86 contains the supported CPU features of the
-// current X86/AMD64 platform. If the current platform
-// is not X86/AMD64 then all feature flags are false.
-//
-// X86 is padded to avoid false sharing. Further the HasAVX
-// and HasAVX2 are only set if the OS supports XMM and YMM
-// registers in addition to the CPUID feature bit being set.
-var X86 struct {
-	_            CacheLinePad
-	HasAES       bool // AES hardware implementation (AES NI)
-	HasADX       bool // Multi-precision add-carry instruction extensions
-	HasAVX       bool // Advanced vector extension
-	HasAVX2      bool // Advanced vector extension 2
-	HasBMI1      bool // Bit manipulation instruction set 1
-	HasBMI2      bool // Bit manipulation instruction set 2
-	HasERMS      bool // Enhanced REP for MOVSB and STOSB
-	HasFMA       bool // Fused-multiply-add instructions
-	HasOSXSAVE   bool // OS supports XSAVE/XRESTOR for saving/restoring XMM registers.
-	HasPCLMULQDQ bool // PCLMULQDQ instruction - most often used for AES-GCM
-	HasPOPCNT    bool // Hamming weight instruction POPCNT.
-	HasRDRAND    bool // RDRAND instruction (on-chip random number generator)
-	HasRDSEED    bool // RDSEED instruction (on-chip random number generator)
-	HasSSE2      bool // Streaming SIMD extension 2 (always available on amd64)
-	HasSSE3      bool // Streaming SIMD extension 3
-	HasSSSE3     bool // Supplemental streaming SIMD extension 3
-	HasSSE41     bool // Streaming SIMD extension 4 and 4.1
-	HasSSE42     bool // Streaming SIMD extension 4 and 4.2
-	_            CacheLinePad
-}
-
-// ARM64 contains the supported CPU features of the
-// current ARMv8(aarch64) platform. If the current platform
-// is not arm64 then all feature flags are false.
-var ARM64 struct {
-	_           CacheLinePad
-	HasFP       bool // Floating-point instruction set (always available)
-	HasASIMD    bool // Advanced SIMD (always available)
-	HasEVTSTRM  bool // Event stream support
-	HasAES      bool // AES hardware implementation
-	HasPMULL    bool // Polynomial multiplication instruction set
-	HasSHA1     bool // SHA1 hardware implementation
-	HasSHA2     bool // SHA2 hardware implementation
-	HasCRC32    bool // CRC32 hardware implementation
-	HasATOMICS  bool // Atomic memory operation instruction set
-	HasFPHP     bool // Half precision floating-point instruction set
-	HasASIMDHP  bool // Advanced SIMD half precision instruction set
-	HasCPUID    bool // CPUID identification scheme registers
-	HasASIMDRDM bool // Rounding double multiply add/subtract instruction set
-	HasJSCVT    bool // Javascript conversion from floating-point to integer
-	HasFCMA     bool // Floating-point multiplication and addition of complex numbers
-	HasLRCPC    bool // Release Consistent processor consistent support
-	HasDCPOP    bool // Persistent memory support
-	HasSHA3     bool // SHA3 hardware implementation
-	HasSM3      bool // SM3 hardware implementation
-	HasSM4      bool // SM4 hardware implementation
-	HasASIMDDP  bool // Advanced SIMD double precision instruction set
-	HasSHA512   bool // SHA512 hardware implementation
-	HasSVE      bool // Scalable Vector Extensions
-	HasASIMDFHM bool // Advanced SIMD multiplication FP16 to FP32
-	_           CacheLinePad
-}
-
-// ARM contains the supported CPU features of the current ARM (32-bit) platform.
-// All feature flags are false if:
-//   1. the current platform is not arm, or
-//   2. the current operating system is not Linux.
-var ARM struct {
-	_           CacheLinePad
-	HasSWP      bool // SWP instruction support
-	HasHALF     bool // Half-word load and store support
-	HasTHUMB    bool // ARM Thumb instruction set
-	Has26BIT    bool // Address space limited to 26-bits
-	HasFASTMUL  bool // 32-bit operand, 64-bit result multiplication support
-	HasFPA      bool // Floating point arithmetic support
-	HasVFP      bool // Vector floating point support
-	HasEDSP     bool // DSP Extensions support
-	HasJAVA     bool // Java instruction set
-	HasIWMMXT   bool // Intel Wireless MMX technology support
-	HasCRUNCH   bool // MaverickCrunch context switching and handling
-	HasTHUMBEE  bool // Thumb EE instruction set
-	HasNEON     bool // NEON instruction set
-	HasVFPv3    bool // Vector floating point version 3 support
-	HasVFPv3D16 bool // Vector floating point version 3 D8-D15
-	HasTLS      bool // Thread local storage support
-	HasVFPv4    bool // Vector floating point version 4 support
-	HasIDIVA    bool // Integer divide instruction support in ARM mode
-	HasIDIVT    bool // Integer divide instruction support in Thumb mode
-	HasVFPD32   bool // Vector floating point version 3 D15-D31
-	HasLPAE     bool // Large Physical Address Extensions
-	HasEVTSTRM  bool // Event stream support
-	HasAES      bool // AES hardware implementation
-	HasPMULL    bool // Polynomial multiplication instruction set
-	HasSHA1     bool // SHA1 hardware implementation
-	HasSHA2     bool // SHA2 hardware implementation
-	HasCRC32    bool // CRC32 hardware implementation
-	_           CacheLinePad
-}
-
-// MIPS64X contains the supported CPU features of the current mips64/mips64le
-// platforms. If the current platform is not mips64/mips64le or the current
-// operating system is not Linux then all feature flags are false.
-var MIPS64X struct {
-	_      CacheLinePad
-	HasMSA bool // MIPS SIMD architecture
-	_      CacheLinePad
-}
-
-// PPC64 contains the supported CPU features of the current ppc64/ppc64le platforms.
-// If the current platform is not ppc64/ppc64le then all feature flags are false.
-//
-// For ppc64/ppc64le, it is safe to check only for ISA level starting on ISA v3.00,
-// since there are no optional categories. There are some exceptions that also
-// require kernel support to work (DARN, SCV), so there are feature bits for
-// those as well. The minimum processor requirement is POWER8 (ISA 2.07).
-// The struct is padded to avoid false sharing.
-var PPC64 struct {
-	_        CacheLinePad
-	HasDARN  bool // Hardware random number generator (requires kernel enablement)
-	HasSCV   bool // Syscall vectored (requires kernel enablement)
-	IsPOWER8 bool // ISA v2.07 (POWER8)
-	IsPOWER9 bool // ISA v3.00 (POWER9)
-	_        CacheLinePad
-}
-
-// S390X contains the supported CPU features of the current IBM Z
-// (s390x) platform. If the current platform is not IBM Z then all
-// feature flags are false.
-//
-// S390X is padded to avoid false sharing. Further HasVX is only set
-// if the OS supports vector registers in addition to the STFLE
-// feature bit being set.
-var S390X struct {
-	_         CacheLinePad
-	HasZARCH  bool // z/Architecture mode is active [mandatory]
-	HasSTFLE  bool // store facility list extended
-	HasLDISP  bool // long (20-bit) displacements
-	HasEIMM   bool // 32-bit immediates
-	HasDFP    bool // decimal floating point
-	HasETF3EH bool // ETF-3 enhanced
-	HasMSA    bool // message security assist (CPACF)
-	HasAES    bool // KM-AES{128,192,256} functions
-	HasAESCBC bool // KMC-AES{128,192,256} functions
-	HasAESCTR bool // KMCTR-AES{128,192,256} functions
-	HasAESGCM bool // KMA-GCM-AES{128,192,256} functions
-	HasGHASH  bool // KIMD-GHASH function
-	HasSHA1   bool // K{I,L}MD-SHA-1 functions
-	HasSHA256 bool // K{I,L}MD-SHA-256 functions
-	HasSHA512 bool // K{I,L}MD-SHA-512 functions
-	HasSHA3   bool // K{I,L}MD-SHA3-{224,256,384,512} and K{I,L}MD-SHAKE-{128,256} functions
-	HasVX     bool // vector facility
-	HasVXE    bool // vector-enhancements facility 1
-	_         CacheLinePad
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_aix_ppc64.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_aix_ppc64.go
deleted file mode 100644
index be6027224..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_aix_ppc64.go
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build aix,ppc64
-
-package cpu
-
-const cacheLineSize = 128
-
-const (
-	// getsystemcfg constants
-	_SC_IMPL     = 2
-	_IMPL_POWER8 = 0x10000
-	_IMPL_POWER9 = 0x20000
-)
-
-func init() {
-	impl := getsystemcfg(_SC_IMPL)
-	if impl&_IMPL_POWER8 != 0 {
-		PPC64.IsPOWER8 = true
-	}
-	if impl&_IMPL_POWER9 != 0 {
-		PPC64.IsPOWER9 = true
-	}
-
-	Initialized = true
-}
-
-func getsystemcfg(label int) (n uint64) {
-	r0, _ := callgetsystemcfg(label)
-	n = uint64(r0)
-	return
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_arm.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_arm.go
deleted file mode 100644
index 981af6818..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_arm.go
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cpu
-
-const cacheLineSize = 32
-
-// HWCAP/HWCAP2 bits.
-// These are specific to Linux.
-const (
-	hwcap_SWP       = 1 << 0
-	hwcap_HALF      = 1 << 1
-	hwcap_THUMB     = 1 << 2
-	hwcap_26BIT     = 1 << 3
-	hwcap_FAST_MULT = 1 << 4
-	hwcap_FPA       = 1 << 5
-	hwcap_VFP       = 1 << 6
-	hwcap_EDSP      = 1 << 7
-	hwcap_JAVA      = 1 << 8
-	hwcap_IWMMXT    = 1 << 9
-	hwcap_CRUNCH    = 1 << 10
-	hwcap_THUMBEE   = 1 << 11
-	hwcap_NEON      = 1 << 12
-	hwcap_VFPv3     = 1 << 13
-	hwcap_VFPv3D16  = 1 << 14
-	hwcap_TLS       = 1 << 15
-	hwcap_VFPv4     = 1 << 16
-	hwcap_IDIVA     = 1 << 17
-	hwcap_IDIVT     = 1 << 18
-	hwcap_VFPD32    = 1 << 19
-	hwcap_LPAE      = 1 << 20
-	hwcap_EVTSTRM   = 1 << 21
-
-	hwcap2_AES   = 1 << 0
-	hwcap2_PMULL = 1 << 1
-	hwcap2_SHA1  = 1 << 2
-	hwcap2_SHA2  = 1 << 3
-	hwcap2_CRC32 = 1 << 4
-)
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_arm64.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_arm64.go
deleted file mode 100644
index 9c87677ae..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_arm64.go
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cpu
-
-import "runtime"
-
-const cacheLineSize = 64
-
-func init() {
-	switch runtime.GOOS {
-	case "android", "darwin":
-		// Android and iOS don't seem to allow reading these registers.
-		// Fake the minimal features expected by
-		// TestARM64minimalFeatures.
-		ARM64.HasASIMD = true
-		ARM64.HasFP = true
-	case "linux":
-		doinit()
-	default:
-		readARM64Registers()
-	}
-}
-
-func readARM64Registers() {
-	Initialized = true
-
-	// ID_AA64ISAR0_EL1
-	isar0 := getisar0()
-
-	switch extractBits(isar0, 4, 7) {
-	case 1:
-		ARM64.HasAES = true
-	case 2:
-		ARM64.HasAES = true
-		ARM64.HasPMULL = true
-	}
-
-	switch extractBits(isar0, 8, 11) {
-	case 1:
-		ARM64.HasSHA1 = true
-	}
-
-	switch extractBits(isar0, 12, 15) {
-	case 1:
-		ARM64.HasSHA2 = true
-	case 2:
-		ARM64.HasSHA2 = true
-		ARM64.HasSHA512 = true
-	}
-
-	switch extractBits(isar0, 16, 19) {
-	case 1:
-		ARM64.HasCRC32 = true
-	}
-
-	switch extractBits(isar0, 20, 23) {
-	case 2:
-		ARM64.HasATOMICS = true
-	}
-
-	switch extractBits(isar0, 28, 31) {
-	case 1:
-		ARM64.HasASIMDRDM = true
-	}
-
-	switch extractBits(isar0, 32, 35) {
-	case 1:
-		ARM64.HasSHA3 = true
-	}
-
-	switch extractBits(isar0, 36, 39) {
-	case 1:
-		ARM64.HasSM3 = true
-	}
-
-	switch extractBits(isar0, 40, 43) {
-	case 1:
-		ARM64.HasSM4 = true
-	}
-
-	switch extractBits(isar0, 44, 47) {
-	case 1:
-		ARM64.HasASIMDDP = true
-	}
-
-	// ID_AA64ISAR1_EL1
-	isar1 := getisar1()
-
-	switch extractBits(isar1, 0, 3) {
-	case 1:
-		ARM64.HasDCPOP = true
-	}
-
-	switch extractBits(isar1, 12, 15) {
-	case 1:
-		ARM64.HasJSCVT = true
-	}
-
-	switch extractBits(isar1, 16, 19) {
-	case 1:
-		ARM64.HasFCMA = true
-	}
-
-	switch extractBits(isar1, 20, 23) {
-	case 1:
-		ARM64.HasLRCPC = true
-	}
-
-	// ID_AA64PFR0_EL1
-	pfr0 := getpfr0()
-
-	switch extractBits(pfr0, 16, 19) {
-	case 0:
-		ARM64.HasFP = true
-	case 1:
-		ARM64.HasFP = true
-		ARM64.HasFPHP = true
-	}
-
-	switch extractBits(pfr0, 20, 23) {
-	case 0:
-		ARM64.HasASIMD = true
-	case 1:
-		ARM64.HasASIMD = true
-		ARM64.HasASIMDHP = true
-	}
-
-	switch extractBits(pfr0, 32, 35) {
-	case 1:
-		ARM64.HasSVE = true
-	}
-}
-
-func extractBits(data uint64, start, end uint) uint {
-	return (uint)(data>>start) & ((1 << (end - start + 1)) - 1)
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_arm64.s b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_arm64.s
deleted file mode 100644
index a54436e39..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_arm64.s
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !gccgo
-
-#include "textflag.h"
-
-// func getisar0() uint64
-TEXT ·getisar0(SB),NOSPLIT,$0-8
-	// get Instruction Set Attributes 0 into x0
-	// mrs x0, ID_AA64ISAR0_EL1 = d5380600
-	WORD	$0xd5380600
-	MOVD	R0, ret+0(FP)
-	RET
-
-// func getisar1() uint64
-TEXT ·getisar1(SB),NOSPLIT,$0-8
-	// get Instruction Set Attributes 1 into x0
-	// mrs x0, ID_AA64ISAR1_EL1 = d5380620
-	WORD	$0xd5380620
-	MOVD	R0, ret+0(FP)
-	RET
-
-// func getpfr0() uint64
-TEXT ·getpfr0(SB),NOSPLIT,$0-8
-	// get Processor Feature Register 0 into x0
-	// mrs x0, ID_AA64PFR0_EL1 = d5380400
-	WORD	$0xd5380400
-	MOVD	R0, ret+0(FP)
-	RET
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gc_arm64.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gc_arm64.go
deleted file mode 100644
index 7b88e865a..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gc_arm64.go
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !gccgo
-
-package cpu
-
-func getisar0() uint64
-func getisar1() uint64
-func getpfr0() uint64
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gc_s390x.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gc_s390x.go
deleted file mode 100644
index 568bcd031..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gc_s390x.go
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !gccgo
-
-package cpu
-
-// haveAsmFunctions reports whether the other functions in this file can
-// be safely called.
-func haveAsmFunctions() bool { return true }
-
-// The following feature detection functions are defined in cpu_s390x.s.
-// They are likely to be expensive to call so the results should be cached.
-func stfle() facilityList
-func kmQuery() queryResult
-func kmcQuery() queryResult
-func kmctrQuery() queryResult
-func kmaQuery() queryResult
-func kimdQuery() queryResult
-func klmdQuery() queryResult
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gc_x86.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gc_x86.go
deleted file mode 100644
index f7cb46971..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gc_x86.go
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build 386 amd64 amd64p32
-// +build !gccgo
-
-package cpu
-
-// cpuid is implemented in cpu_x86.s for gc compiler
-// and in cpu_gccgo.c for gccgo.
-func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32)
-
-// xgetbv with ecx = 0 is implemented in cpu_x86.s for gc compiler
-// and in cpu_gccgo.c for gccgo.
-func xgetbv() (eax, edx uint32)
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_arm64.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_arm64.go
deleted file mode 100644
index 53ca8d65c..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_arm64.go
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build gccgo
-
-package cpu
-
-func getisar0() uint64 { return 0 }
-func getisar1() uint64 { return 0 }
-func getpfr0() uint64  { return 0 }
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_s390x.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_s390x.go
deleted file mode 100644
index aa986f778..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_s390x.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build gccgo
-
-package cpu
-
-// haveAsmFunctions reports whether the other functions in this file can
-// be safely called.
-func haveAsmFunctions() bool { return false }
-
-// TODO(mundaym): the following feature detection functions are currently
-// stubs. See https://golang.org/cl/162887 for how to fix this.
-// They are likely to be expensive to call so the results should be cached.
-func stfle() facilityList     { panic("not implemented for gccgo") }
-func kmQuery() queryResult    { panic("not implemented for gccgo") }
-func kmcQuery() queryResult   { panic("not implemented for gccgo") }
-func kmctrQuery() queryResult { panic("not implemented for gccgo") }
-func kmaQuery() queryResult   { panic("not implemented for gccgo") }
-func kimdQuery() queryResult  { panic("not implemented for gccgo") }
-func klmdQuery() queryResult  { panic("not implemented for gccgo") }
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.c b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.c
deleted file mode 100644
index e363c7d13..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.c
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build 386 amd64 amd64p32
-// +build gccgo
-
-#include <cpuid.h>
-#include <stdint.h>
-
-// Need to wrap __get_cpuid_count because it's declared as static.
-int
-gccgoGetCpuidCount(uint32_t leaf, uint32_t subleaf,
-                   uint32_t *eax, uint32_t *ebx,
-                   uint32_t *ecx, uint32_t *edx)
-{
-	return __get_cpuid_count(leaf, subleaf, eax, ebx, ecx, edx);
-}
-
-// xgetbv reads the contents of an XCR (Extended Control Register)
-// specified in the ECX register into registers EDX:EAX.
-// Currently, the only supported value for XCR is 0.
-//
-// TODO: Replace with a better alternative:
-//
-//     #include <xsaveintrin.h>
-//
-//     #pragma GCC target("xsave")
-//
-//     void gccgoXgetbv(uint32_t *eax, uint32_t *edx) {
-//       unsigned long long x = _xgetbv(0);
-//       *eax = x & 0xffffffff;
-//       *edx = (x >> 32) & 0xffffffff;
-//     }
-//
-// Note that _xgetbv is defined starting with GCC 8.
-void
-gccgoXgetbv(uint32_t *eax, uint32_t *edx)
-{
-	__asm("  xorl %%ecx, %%ecx\n"
-	      "  xgetbv"
-	    : "=a"(*eax), "=d"(*edx));
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.go
deleted file mode 100644
index ba49b91bd..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_gccgo_x86.go
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build 386 amd64 amd64p32
-// +build gccgo
-
-package cpu
-
-//extern gccgoGetCpuidCount
-func gccgoGetCpuidCount(eaxArg, ecxArg uint32, eax, ebx, ecx, edx *uint32)
-
-func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) {
-	var a, b, c, d uint32
-	gccgoGetCpuidCount(eaxArg, ecxArg, &a, &b, &c, &d)
-	return a, b, c, d
-}
-
-//extern gccgoXgetbv
-func gccgoXgetbv(eax, edx *uint32)
-
-func xgetbv() (eax, edx uint32) {
-	var a, d uint32
-	gccgoXgetbv(&a, &d)
-	return a, d
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux.go
deleted file mode 100644
index fe139182c..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !386,!amd64,!amd64p32,!arm64
-
-package cpu
-
-func init() {
-	if err := readHWCAP(); err != nil {
-		return
-	}
-	doinit()
-	Initialized = true
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_arm.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_arm.go
deleted file mode 100644
index 2057006dc..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_arm.go
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cpu
-
-func doinit() {
-	ARM.HasSWP = isSet(hwCap, hwcap_SWP)
-	ARM.HasHALF = isSet(hwCap, hwcap_HALF)
-	ARM.HasTHUMB = isSet(hwCap, hwcap_THUMB)
-	ARM.Has26BIT = isSet(hwCap, hwcap_26BIT)
-	ARM.HasFASTMUL = isSet(hwCap, hwcap_FAST_MULT)
-	ARM.HasFPA = isSet(hwCap, hwcap_FPA)
-	ARM.HasVFP = isSet(hwCap, hwcap_VFP)
-	ARM.HasEDSP = isSet(hwCap, hwcap_EDSP)
-	ARM.HasJAVA = isSet(hwCap, hwcap_JAVA)
-	ARM.HasIWMMXT = isSet(hwCap, hwcap_IWMMXT)
-	ARM.HasCRUNCH = isSet(hwCap, hwcap_CRUNCH)
-	ARM.HasTHUMBEE = isSet(hwCap, hwcap_THUMBEE)
-	ARM.HasNEON = isSet(hwCap, hwcap_NEON)
-	ARM.HasVFPv3 = isSet(hwCap, hwcap_VFPv3)
-	ARM.HasVFPv3D16 = isSet(hwCap, hwcap_VFPv3D16)
-	ARM.HasTLS = isSet(hwCap, hwcap_TLS)
-	ARM.HasVFPv4 = isSet(hwCap, hwcap_VFPv4)
-	ARM.HasIDIVA = isSet(hwCap, hwcap_IDIVA)
-	ARM.HasIDIVT = isSet(hwCap, hwcap_IDIVT)
-	ARM.HasVFPD32 = isSet(hwCap, hwcap_VFPD32)
-	ARM.HasLPAE = isSet(hwCap, hwcap_LPAE)
-	ARM.HasEVTSTRM = isSet(hwCap, hwcap_EVTSTRM)
-	ARM.HasAES = isSet(hwCap2, hwcap2_AES)
-	ARM.HasPMULL = isSet(hwCap2, hwcap2_PMULL)
-	ARM.HasSHA1 = isSet(hwCap2, hwcap2_SHA1)
-	ARM.HasSHA2 = isSet(hwCap2, hwcap2_SHA2)
-	ARM.HasCRC32 = isSet(hwCap2, hwcap2_CRC32)
-}
-
-func isSet(hwc uint, value uint) bool {
-	return hwc&value != 0
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_arm64.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_arm64.go
deleted file mode 100644
index 79a38a0b9..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_arm64.go
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cpu
-
-// HWCAP/HWCAP2 bits. These are exposed by Linux.
-const (
-	hwcap_FP       = 1 << 0
-	hwcap_ASIMD    = 1 << 1
-	hwcap_EVTSTRM  = 1 << 2
-	hwcap_AES      = 1 << 3
-	hwcap_PMULL    = 1 << 4
-	hwcap_SHA1     = 1 << 5
-	hwcap_SHA2     = 1 << 6
-	hwcap_CRC32    = 1 << 7
-	hwcap_ATOMICS  = 1 << 8
-	hwcap_FPHP     = 1 << 9
-	hwcap_ASIMDHP  = 1 << 10
-	hwcap_CPUID    = 1 << 11
-	hwcap_ASIMDRDM = 1 << 12
-	hwcap_JSCVT    = 1 << 13
-	hwcap_FCMA     = 1 << 14
-	hwcap_LRCPC    = 1 << 15
-	hwcap_DCPOP    = 1 << 16
-	hwcap_SHA3     = 1 << 17
-	hwcap_SM3      = 1 << 18
-	hwcap_SM4      = 1 << 19
-	hwcap_ASIMDDP  = 1 << 20
-	hwcap_SHA512   = 1 << 21
-	hwcap_SVE      = 1 << 22
-	hwcap_ASIMDFHM = 1 << 23
-)
-
-func doinit() {
-	if err := readHWCAP(); err != nil {
-		// failed to read /proc/self/auxv, try reading registers directly
-		readARM64Registers()
-		return
-	}
-
-	// HWCAP feature bits
-	ARM64.HasFP = isSet(hwCap, hwcap_FP)
-	ARM64.HasASIMD = isSet(hwCap, hwcap_ASIMD)
-	ARM64.HasEVTSTRM = isSet(hwCap, hwcap_EVTSTRM)
-	ARM64.HasAES = isSet(hwCap, hwcap_AES)
-	ARM64.HasPMULL = isSet(hwCap, hwcap_PMULL)
-	ARM64.HasSHA1 = isSet(hwCap, hwcap_SHA1)
-	ARM64.HasSHA2 = isSet(hwCap, hwcap_SHA2)
-	ARM64.HasCRC32 = isSet(hwCap, hwcap_CRC32)
-	ARM64.HasATOMICS = isSet(hwCap, hwcap_ATOMICS)
-	ARM64.HasFPHP = isSet(hwCap, hwcap_FPHP)
-	ARM64.HasASIMDHP = isSet(hwCap, hwcap_ASIMDHP)
-	ARM64.HasCPUID = isSet(hwCap, hwcap_CPUID)
-	ARM64.HasASIMDRDM = isSet(hwCap, hwcap_ASIMDRDM)
-	ARM64.HasJSCVT = isSet(hwCap, hwcap_JSCVT)
-	ARM64.HasFCMA = isSet(hwCap, hwcap_FCMA)
-	ARM64.HasLRCPC = isSet(hwCap, hwcap_LRCPC)
-	ARM64.HasDCPOP = isSet(hwCap, hwcap_DCPOP)
-	ARM64.HasSHA3 = isSet(hwCap, hwcap_SHA3)
-	ARM64.HasSM3 = isSet(hwCap, hwcap_SM3)
-	ARM64.HasSM4 = isSet(hwCap, hwcap_SM4)
-	ARM64.HasASIMDDP = isSet(hwCap, hwcap_ASIMDDP)
-	ARM64.HasSHA512 = isSet(hwCap, hwcap_SHA512)
-	ARM64.HasSVE = isSet(hwCap, hwcap_SVE)
-	ARM64.HasASIMDFHM = isSet(hwCap, hwcap_ASIMDFHM)
-}
-
-func isSet(hwc uint, value uint) bool {
-	return hwc&value != 0
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_mips64x.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_mips64x.go
deleted file mode 100644
index eb24e5073..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_mips64x.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2020 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build mips64 mips64le
-
-package cpu
-
-// HWCAP bits. These are exposed by the Linux kernel 5.4.
-const (
-	// CPU features
-	hwcap_MIPS_MSA = 1 << 1
-)
-
-func doinit() {
-	// HWCAP feature bits
-	MIPS64X.HasMSA = isSet(hwCap, hwcap_MIPS_MSA)
-}
-
-func isSet(hwc uint, value uint) bool {
-	return hwc&value != 0
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go
deleted file mode 100644
index 42b5d33cb..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build linux,!arm,!arm64,!mips64,!mips64le,!ppc64,!ppc64le,!s390x
-
-package cpu
-
-func doinit() {}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_ppc64x.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_ppc64x.go
deleted file mode 100644
index 6c8d975d4..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_ppc64x.go
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build linux
-// +build ppc64 ppc64le
-
-package cpu
-
-const cacheLineSize = 128
-
-// HWCAP/HWCAP2 bits. These are exposed by the kernel.
-const (
-	// ISA Level
-	_PPC_FEATURE2_ARCH_2_07 = 0x80000000
-	_PPC_FEATURE2_ARCH_3_00 = 0x00800000
-
-	// CPU features
-	_PPC_FEATURE2_DARN = 0x00200000
-	_PPC_FEATURE2_SCV  = 0x00100000
-)
-
-func doinit() {
-	// HWCAP2 feature bits
-	PPC64.IsPOWER8 = isSet(hwCap2, _PPC_FEATURE2_ARCH_2_07)
-	PPC64.IsPOWER9 = isSet(hwCap2, _PPC_FEATURE2_ARCH_3_00)
-	PPC64.HasDARN = isSet(hwCap2, _PPC_FEATURE2_DARN)
-	PPC64.HasSCV = isSet(hwCap2, _PPC_FEATURE2_SCV)
-}
-
-func isSet(hwc uint, value uint) bool {
-	return hwc&value != 0
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go
deleted file mode 100644
index d579eaef4..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go
+++ /dev/null
@@ -1,161 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cpu
-
-const cacheLineSize = 256
-
-const (
-	// bit mask values from /usr/include/bits/hwcap.h
-	hwcap_ZARCH  = 2
-	hwcap_STFLE  = 4
-	hwcap_MSA    = 8
-	hwcap_LDISP  = 16
-	hwcap_EIMM   = 32
-	hwcap_DFP    = 64
-	hwcap_ETF3EH = 256
-	hwcap_VX     = 2048
-	hwcap_VXE    = 8192
-)
-
-// bitIsSet reports whether the bit at index is set. The bit index
-// is in big endian order, so bit index 0 is the leftmost bit.
-func bitIsSet(bits []uint64, index uint) bool {
-	return bits[index/64]&((1<<63)>>(index%64)) != 0
-}
-
-// function is the code for the named cryptographic function.
-type function uint8
-
-const (
-	// KM{,A,C,CTR} function codes
-	aes128 function = 18 // AES-128
-	aes192 function = 19 // AES-192
-	aes256 function = 20 // AES-256
-
-	// K{I,L}MD function codes
-	sha1     function = 1  // SHA-1
-	sha256   function = 2  // SHA-256
-	sha512   function = 3  // SHA-512
-	sha3_224 function = 32 // SHA3-224
-	sha3_256 function = 33 // SHA3-256
-	sha3_384 function = 34 // SHA3-384
-	sha3_512 function = 35 // SHA3-512
-	shake128 function = 36 // SHAKE-128
-	shake256 function = 37 // SHAKE-256
-
-	// KLMD function codes
-	ghash function = 65 // GHASH
-)
-
-// queryResult contains the result of a Query function
-// call. Bits are numbered in big endian order so the
-// leftmost bit (the MSB) is at index 0.
-type queryResult struct {
-	bits [2]uint64
-}
-
-// Has reports whether the given functions are present.
-func (q *queryResult) Has(fns ...function) bool {
-	if len(fns) == 0 {
-		panic("no function codes provided")
-	}
-	for _, f := range fns {
-		if !bitIsSet(q.bits[:], uint(f)) {
-			return false
-		}
-	}
-	return true
-}
-
-// facility is a bit index for the named facility.
-type facility uint8
-
-const (
-	// cryptography facilities
-	msa4 facility = 77  // message-security-assist extension 4
-	msa8 facility = 146 // message-security-assist extension 8
-)
-
-// facilityList contains the result of an STFLE call.
-// Bits are numbered in big endian order so the
-// leftmost bit (the MSB) is at index 0.
-type facilityList struct {
-	bits [4]uint64
-}
-
-// Has reports whether the given facilities are present.
-func (s *facilityList) Has(fs ...facility) bool {
-	if len(fs) == 0 {
-		panic("no facility bits provided")
-	}
-	for _, f := range fs {
-		if !bitIsSet(s.bits[:], uint(f)) {
-			return false
-		}
-	}
-	return true
-}
-
-func doinit() {
-	// test HWCAP bit vector
-	has := func(featureMask uint) bool {
-		return hwCap&featureMask == featureMask
-	}
-
-	// mandatory
-	S390X.HasZARCH = has(hwcap_ZARCH)
-
-	// optional
-	S390X.HasSTFLE = has(hwcap_STFLE)
-	S390X.HasLDISP = has(hwcap_LDISP)
-	S390X.HasEIMM = has(hwcap_EIMM)
-	S390X.HasETF3EH = has(hwcap_ETF3EH)
-	S390X.HasDFP = has(hwcap_DFP)
-	S390X.HasMSA = has(hwcap_MSA)
-	S390X.HasVX = has(hwcap_VX)
-	if S390X.HasVX {
-		S390X.HasVXE = has(hwcap_VXE)
-	}
-
-	// We need implementations of stfle, km and so on
-	// to detect cryptographic features.
-	if !haveAsmFunctions() {
-		return
-	}
-
-	// optional cryptographic functions
-	if S390X.HasMSA {
-		aes := []function{aes128, aes192, aes256}
-
-		// cipher message
-		km, kmc := kmQuery(), kmcQuery()
-		S390X.HasAES = km.Has(aes...)
-		S390X.HasAESCBC = kmc.Has(aes...)
-		if S390X.HasSTFLE {
-			facilities := stfle()
-			if facilities.Has(msa4) {
-				kmctr := kmctrQuery()
-				S390X.HasAESCTR = kmctr.Has(aes...)
-			}
-			if facilities.Has(msa8) {
-				kma := kmaQuery()
-				S390X.HasAESGCM = kma.Has(aes...)
-			}
-		}
-
-		// compute message digest
-		kimd := kimdQuery() // intermediate (no padding)
-		klmd := klmdQuery() // last (padding)
-		S390X.HasSHA1 = kimd.Has(sha1) && klmd.Has(sha1)
-		S390X.HasSHA256 = kimd.Has(sha256) && klmd.Has(sha256)
-		S390X.HasSHA512 = kimd.Has(sha512) && klmd.Has(sha512)
-		S390X.HasGHASH = kimd.Has(ghash) // KLMD-GHASH does not exist
-		sha3 := []function{
-			sha3_224, sha3_256, sha3_384, sha3_512,
-			shake128, shake256,
-		}
-		S390X.HasSHA3 = kimd.Has(sha3...) && klmd.Has(sha3...)
-	}
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_mips64x.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_mips64x.go
deleted file mode 100644
index 6165f1212..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_mips64x.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build mips64 mips64le
-
-package cpu
-
-const cacheLineSize = 32
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_mipsx.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_mipsx.go
deleted file mode 100644
index 1269eee88..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_mipsx.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build mips mipsle
-
-package cpu
-
-const cacheLineSize = 32
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_other_arm64.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_other_arm64.go
deleted file mode 100644
index 3ffc4afa0..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_other_arm64.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !linux,arm64
-
-package cpu
-
-func doinit() {}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_riscv64.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_riscv64.go
deleted file mode 100644
index efe2b7a84..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_riscv64.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build riscv64
-
-package cpu
-
-const cacheLineSize = 32
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_s390x.s b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_s390x.s
deleted file mode 100644
index e5037d92e..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_s390x.s
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !gccgo
-
-#include "textflag.h"
-
-// func stfle() facilityList
-TEXT ·stfle(SB), NOSPLIT|NOFRAME, $0-32
-	MOVD $ret+0(FP), R1
-	MOVD $3, R0          // last doubleword index to store
-	XC   $32, (R1), (R1) // clear 4 doublewords (32 bytes)
-	WORD $0xb2b01000     // store facility list extended (STFLE)
-	RET
-
-// func kmQuery() queryResult
-TEXT ·kmQuery(SB), NOSPLIT|NOFRAME, $0-16
-	MOVD $0, R0         // set function code to 0 (KM-Query)
-	MOVD $ret+0(FP), R1 // address of 16-byte return value
-	WORD $0xB92E0024    // cipher message (KM)
-	RET
-
-// func kmcQuery() queryResult
-TEXT ·kmcQuery(SB), NOSPLIT|NOFRAME, $0-16
-	MOVD $0, R0         // set function code to 0 (KMC-Query)
-	MOVD $ret+0(FP), R1 // address of 16-byte return value
-	WORD $0xB92F0024    // cipher message with chaining (KMC)
-	RET
-
-// func kmctrQuery() queryResult
-TEXT ·kmctrQuery(SB), NOSPLIT|NOFRAME, $0-16
-	MOVD $0, R0         // set function code to 0 (KMCTR-Query)
-	MOVD $ret+0(FP), R1 // address of 16-byte return value
-	WORD $0xB92D4024    // cipher message with counter (KMCTR)
-	RET
-
-// func kmaQuery() queryResult
-TEXT ·kmaQuery(SB), NOSPLIT|NOFRAME, $0-16
-	MOVD $0, R0         // set function code to 0 (KMA-Query)
-	MOVD $ret+0(FP), R1 // address of 16-byte return value
-	WORD $0xb9296024    // cipher message with authentication (KMA)
-	RET
-
-// func kimdQuery() queryResult
-TEXT ·kimdQuery(SB), NOSPLIT|NOFRAME, $0-16
-	MOVD $0, R0         // set function code to 0 (KIMD-Query)
-	MOVD $ret+0(FP), R1 // address of 16-byte return value
-	WORD $0xB93E0024    // compute intermediate message digest (KIMD)
-	RET
-
-// func klmdQuery() queryResult
-TEXT ·klmdQuery(SB), NOSPLIT|NOFRAME, $0-16
-	MOVD $0, R0         // set function code to 0 (KLMD-Query)
-	MOVD $ret+0(FP), R1 // address of 16-byte return value
-	WORD $0xB93F0024    // compute last message digest (KLMD)
-	RET
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_wasm.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_wasm.go
deleted file mode 100644
index 8681e876a..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_wasm.go
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build wasm
-
-package cpu
-
-// We're compiling the cpu package for an unknown (software-abstracted) CPU.
-// Make CacheLinePad an empty struct and hope that the usual struct alignment
-// rules are good enough.
-
-const cacheLineSize = 0
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_x86.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_x86.go
deleted file mode 100644
index d70d317f5..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_x86.go
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build 386 amd64 amd64p32
-
-package cpu
-
-const cacheLineSize = 64
-
-func init() {
-	Initialized = true
-
-	maxID, _, _, _ := cpuid(0, 0)
-
-	if maxID < 1 {
-		return
-	}
-
-	_, _, ecx1, edx1 := cpuid(1, 0)
-	X86.HasSSE2 = isSet(26, edx1)
-
-	X86.HasSSE3 = isSet(0, ecx1)
-	X86.HasPCLMULQDQ = isSet(1, ecx1)
-	X86.HasSSSE3 = isSet(9, ecx1)
-	X86.HasFMA = isSet(12, ecx1)
-	X86.HasSSE41 = isSet(19, ecx1)
-	X86.HasSSE42 = isSet(20, ecx1)
-	X86.HasPOPCNT = isSet(23, ecx1)
-	X86.HasAES = isSet(25, ecx1)
-	X86.HasOSXSAVE = isSet(27, ecx1)
-	X86.HasRDRAND = isSet(30, ecx1)
-
-	osSupportsAVX := false
-	// For XGETBV, OSXSAVE bit is required and sufficient.
-	if X86.HasOSXSAVE {
-		eax, _ := xgetbv()
-		// Check if XMM and YMM registers have OS support.
-		osSupportsAVX = isSet(1, eax) && isSet(2, eax)
-	}
-
-	X86.HasAVX = isSet(28, ecx1) && osSupportsAVX
-
-	if maxID < 7 {
-		return
-	}
-
-	_, ebx7, _, _ := cpuid(7, 0)
-	X86.HasBMI1 = isSet(3, ebx7)
-	X86.HasAVX2 = isSet(5, ebx7) && osSupportsAVX
-	X86.HasBMI2 = isSet(8, ebx7)
-	X86.HasERMS = isSet(9, ebx7)
-	X86.HasRDSEED = isSet(18, ebx7)
-	X86.HasADX = isSet(19, ebx7)
-}
-
-func isSet(bitpos uint, value uint32) bool {
-	return value&(1<<bitpos) != 0
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_x86.s b/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_x86.s
deleted file mode 100644
index 47f084128..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/cpu_x86.s
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build 386 amd64 amd64p32
-// +build !gccgo
-
-#include "textflag.h"
-
-// func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32)
-TEXT ·cpuid(SB), NOSPLIT, $0-24
-	MOVL eaxArg+0(FP), AX
-	MOVL ecxArg+4(FP), CX
-	CPUID
-	MOVL AX, eax+8(FP)
-	MOVL BX, ebx+12(FP)
-	MOVL CX, ecx+16(FP)
-	MOVL DX, edx+20(FP)
-	RET
-
-// func xgetbv() (eax, edx uint32)
-TEXT ·xgetbv(SB),NOSPLIT,$0-8
-	MOVL $0, CX
-	XGETBV
-	MOVL AX, eax+0(FP)
-	MOVL DX, edx+4(FP)
-	RET
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/hwcap_linux.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/hwcap_linux.go
deleted file mode 100644
index f3baa3793..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/hwcap_linux.go
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cpu
-
-import (
-	"io/ioutil"
-)
-
-const (
-	_AT_HWCAP  = 16
-	_AT_HWCAP2 = 26
-
-	procAuxv = "/proc/self/auxv"
-
-	uintSize = int(32 << (^uint(0) >> 63))
-)
-
-// For those platforms don't have a 'cpuid' equivalent we use HWCAP/HWCAP2
-// These are initialized in cpu_$GOARCH.go
-// and should not be changed after they are initialized.
-var hwCap uint
-var hwCap2 uint
-
-func readHWCAP() error {
-	buf, err := ioutil.ReadFile(procAuxv)
-	if err != nil {
-		// e.g. on android /proc/self/auxv is not accessible, so silently
-		// ignore the error and leave Initialized = false. On some
-		// architectures (e.g. arm64) doinit() implements a fallback
-		// readout and will set Initialized = true again.
-		return err
-	}
-	bo := hostByteOrder()
-	for len(buf) >= 2*(uintSize/8) {
-		var tag, val uint
-		switch uintSize {
-		case 32:
-			tag = uint(bo.Uint32(buf[0:]))
-			val = uint(bo.Uint32(buf[4:]))
-			buf = buf[8:]
-		case 64:
-			tag = uint(bo.Uint64(buf[0:]))
-			val = uint(bo.Uint64(buf[8:]))
-			buf = buf[16:]
-		}
-		switch tag {
-		case _AT_HWCAP:
-			hwCap = val
-		case _AT_HWCAP2:
-			hwCap2 = val
-		}
-	}
-	return nil
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/cpu/syscall_aix_ppc64_gc.go b/pkg/metadata/vendor/golang.org/x/sys/cpu/syscall_aix_ppc64_gc.go
deleted file mode 100644
index 78fe25e86..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/cpu/syscall_aix_ppc64_gc.go
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Minimal copy of x/sys/unix so the cpu package can make a
-// system call on AIX without depending on x/sys/unix.
-// (See golang.org/issue/32102)
-
-// +build aix,ppc64
-// +build !gccgo
-
-package cpu
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-//go:cgo_import_dynamic libc_getsystemcfg getsystemcfg "libc.a/shr_64.o"
-
-//go:linkname libc_getsystemcfg libc_getsystemcfg
-
-type syscallFunc uintptr
-
-var libc_getsystemcfg syscallFunc
-
-type errno = syscall.Errno
-
-// Implemented in runtime/syscall_aix.go.
-func rawSyscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err errno)
-func syscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err errno)
-
-func callgetsystemcfg(label int) (r1 uintptr, e1 errno) {
-	r1, _, e1 = syscall6(uintptr(unsafe.Pointer(&libc_getsystemcfg)), 1, uintptr(label), 0, 0, 0, 0, 0)
-	return
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/go.mod b/pkg/metadata/vendor/golang.org/x/sys/go.mod
deleted file mode 100644
index b12171fdc..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/go.mod
+++ /dev/null
@@ -1,3 +0,0 @@
-module golang.org/x/sys
-
-go 1.12
diff --git a/pkg/metadata/vendor/golang.org/x/sys/unix/.gitignore b/pkg/metadata/vendor/golang.org/x/sys/unix/.gitignore
new file mode 100644
index 000000000..e3e0fc6f8
--- /dev/null
+++ b/pkg/metadata/vendor/golang.org/x/sys/unix/.gitignore
@@ -0,0 +1,2 @@
+_obj/
+unix.test
diff --git a/pkg/metadata/vendor/golang.org/x/sys/unix/mkall.sh b/pkg/metadata/vendor/golang.org/x/sys/unix/mkall.sh
new file mode 100644
index 000000000..ece31e9dc
--- /dev/null
+++ b/pkg/metadata/vendor/golang.org/x/sys/unix/mkall.sh
@@ -0,0 +1,240 @@
+#!/usr/bin/env bash
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# This script runs or (given -n) prints suggested commands to generate files for
+# the Architecture/OS specified by the GOARCH and GOOS environment variables.
+# See README.md for more information about how the build system works.
+
+GOOSARCH="${GOOS}_${GOARCH}"
+
+# defaults
+mksyscall="go run mksyscall.go"
+mkerrors="./mkerrors.sh"
+zerrors="zerrors_$GOOSARCH.go"
+mksysctl=""
+zsysctl="zsysctl_$GOOSARCH.go"
+mksysnum=
+mktypes=
+mkasm=
+run="sh"
+cmd=""
+
+case "$1" in
+-syscalls)
+	for i in zsyscall*go
+	do
+		# Run the command line that appears in the first line
+		# of the generated file to regenerate it.
+		sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
+		rm _$i
+	done
+	exit 0
+	;;
+-n)
+	run="cat"
+	cmd="echo"
+	shift
+esac
+
+case "$#" in
+0)
+	;;
+*)
+	echo 'usage: mkall.sh [-n]' 1>&2
+	exit 2
+esac
+
+if [[ "$GOOS" = "linux" ]]; then
+	# Use the Docker-based build system
+	# Files generated through docker (use $cmd so you can Ctl-C the build or run)
+	$cmd docker build --tag generate:$GOOS $GOOS
+	$cmd docker run --interactive --tty --volume $(cd -- "$(dirname -- "$0")" && /bin/pwd):/build generate:$GOOS
+	exit
+fi
+
+GOOSARCH_in=syscall_$GOOSARCH.go
+case "$GOOSARCH" in
+_* | *_ | _)
+	echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
+	exit 1
+	;;
+aix_ppc)
+	mkerrors="$mkerrors -maix32"
+	mksyscall="go run mksyscall_aix_ppc.go -aix"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+aix_ppc64)
+	mkerrors="$mkerrors -maix64"
+	mksyscall="go run mksyscall_aix_ppc64.go -aix"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+darwin_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="go run mksyscall.go -l32"
+	mksysnum="go run mksysnum.go $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	mkasm="go run mkasm_darwin.go"
+	;;
+darwin_amd64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="go run mksysnum.go $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	mkasm="go run mkasm_darwin.go"
+	;;
+darwin_arm)
+	mkerrors="$mkerrors"
+	mksyscall="go run mksyscall.go -l32"
+	mksysnum="go run mksysnum.go $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	mkasm="go run mkasm_darwin.go"
+	;;
+darwin_arm64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="go run mksysnum.go $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	mkasm="go run mkasm_darwin.go"
+	;;
+dragonfly_amd64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="go run mksyscall.go -dragonfly"
+	mksysnum="go run mksysnum.go 'https://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+freebsd_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="go run mksyscall.go -l32"
+	mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+freebsd_amd64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+freebsd_arm)
+	mkerrors="$mkerrors"
+	mksyscall="go run mksyscall.go -l32 -arm"
+	mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+freebsd_arm64)
+	mkerrors="$mkerrors -m64"
+	mksysnum="go run mksysnum.go 'https://svn.freebsd.org/base/stable/11/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+netbsd_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="go run mksyscall.go -l32 -netbsd"
+	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+netbsd_amd64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="go run mksyscall.go -netbsd"
+	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+netbsd_arm)
+	mkerrors="$mkerrors"
+	mksyscall="go run mksyscall.go -l32 -netbsd -arm"
+	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+netbsd_arm64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="go run mksyscall.go -netbsd"
+	mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+openbsd_386)
+	mkerrors="$mkerrors -m32"
+	mksyscall="go run mksyscall.go -l32 -openbsd"
+	mksysctl="go run mksysctl_openbsd.go"
+	mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+openbsd_amd64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="go run mksyscall.go -openbsd"
+	mksysctl="go run mksysctl_openbsd.go"
+	mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+openbsd_arm)
+	mkerrors="$mkerrors"
+	mksyscall="go run mksyscall.go -l32 -openbsd -arm"
+	mksysctl="go run mksysctl_openbsd.go"
+	mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+openbsd_arm64)
+	mkerrors="$mkerrors -m64"
+	mksyscall="go run mksyscall.go -openbsd"
+	mksysctl="go run mksysctl_openbsd.go"
+	mksysnum="go run mksysnum.go 'https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master'"
+	# Let the type of C char be signed for making the bare syscall
+	# API consistent across platforms.
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
+	;;
+solaris_amd64)
+	mksyscall="go run mksyscall_solaris.go"
+	mkerrors="$mkerrors -m64"
+	mksysnum=
+	mktypes="GOARCH=$GOARCH go tool cgo -godefs"
+	;;
+illumos_amd64)
+        mksyscall="go run mksyscall_solaris.go"
+	mkerrors=
+	mksysnum=
+	mktypes=
+	;;
+*)
+	echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
+	exit 1
+	;;
+esac
+
+(
+	if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
+	case "$GOOS" in
+	*)
+		syscall_goos="syscall_$GOOS.go"
+		case "$GOOS" in
+		darwin | dragonfly | freebsd | netbsd | openbsd)
+			syscall_goos="syscall_bsd.go $syscall_goos"
+			;;
+		esac
+		if [ -n "$mksyscall" ]; then
+			if [ "$GOOSARCH" == "aix_ppc64" ]; then
+				# aix/ppc64 script generates files instead of writing to stdin.
+				echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in && gofmt -w zsyscall_$GOOSARCH.go && gofmt -w zsyscall_"$GOOSARCH"_gccgo.go && gofmt -w zsyscall_"$GOOSARCH"_gc.go " ;
+			elif [ "$GOOS" == "darwin" ]; then
+			        # pre-1.12, direct syscalls
+			        echo "$mksyscall -tags $GOOS,$GOARCH,!go1.12 $syscall_goos syscall_darwin_${GOARCH}.1_11.go $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.1_11.go";
+			        # 1.12 and later, syscalls via libSystem
+				echo "$mksyscall -tags $GOOS,$GOARCH,go1.12 $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go";
+				# 1.13 and later, syscalls via libSystem (including syscallPtr)
+				echo "$mksyscall -tags $GOOS,$GOARCH,go1.13 syscall_darwin.1_13.go |gofmt >zsyscall_$GOOSARCH.1_13.go";
+			elif [ "$GOOS" == "illumos" ]; then
+			        # illumos code generation requires a --illumos switch
+			        echo "$mksyscall -illumos -tags illumos,$GOARCH syscall_illumos.go |gofmt > zsyscall_illumos_$GOARCH.go";
+			        # illumos implies solaris, so solaris code generation is also required
+				echo "$mksyscall -tags solaris,$GOARCH syscall_solaris.go syscall_solaris_$GOARCH.go |gofmt >zsyscall_solaris_$GOARCH.go";
+			else
+				echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go";
+			fi
+		fi
+	esac
+	if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
+	if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
+	if [ -n "$mktypes" ]; then echo "$mktypes types_$GOOS.go | go run mkpost.go > ztypes_$GOOSARCH.go"; fi
+	if [ -n "$mkasm" ]; then echo "$mkasm $GOARCH"; fi
+) | $run
diff --git a/pkg/metadata/vendor/golang.org/x/sys/unix/mkerrors.sh b/pkg/metadata/vendor/golang.org/x/sys/unix/mkerrors.sh
new file mode 100644
index 000000000..ab09aafcf
--- /dev/null
+++ b/pkg/metadata/vendor/golang.org/x/sys/unix/mkerrors.sh
@@ -0,0 +1,702 @@
+#!/usr/bin/env bash
+# Copyright 2009 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# Generate Go code listing errors and other #defined constant
+# values (ENAMETOOLONG etc.), by asking the preprocessor
+# about the definitions.
+
+unset LANG
+export LC_ALL=C
+export LC_CTYPE=C
+
+if test -z "$GOARCH" -o -z "$GOOS"; then
+	echo 1>&2 "GOARCH or GOOS not defined in environment"
+	exit 1
+fi
+
+# Check that we are using the new build system if we should
+if [[ "$GOOS" = "linux" ]] && [[ "$GOLANG_SYS_BUILD" != "docker" ]]; then
+	echo 1>&2 "In the Docker based build system, mkerrors should not be called directly."
+	echo 1>&2 "See README.md"
+	exit 1
+fi
+
+if [[ "$GOOS" = "aix" ]]; then
+	CC=${CC:-gcc}
+else
+	CC=${CC:-cc}
+fi
+
+if [[ "$GOOS" = "solaris" ]]; then
+	# Assumes GNU versions of utilities in PATH.
+	export PATH=/usr/gnu/bin:$PATH
+fi
+
+uname=$(uname)
+
+includes_AIX='
+#include <net/if.h>
+#include <net/netopt.h>
+#include <netinet/ip_mroute.h>
+#include <sys/protosw.h>
+#include <sys/stropts.h>
+#include <sys/mman.h>
+#include <sys/poll.h>
+#include <sys/select.h>
+#include <sys/termio.h>
+#include <termios.h>
+#include <fcntl.h>
+
+#define AF_LOCAL AF_UNIX
+'
+
+includes_Darwin='
+#define _DARWIN_C_SOURCE
+#define KERNEL
+#define _DARWIN_USE_64_BIT_INODE
+#include <stdint.h>
+#include <sys/attr.h>
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/ptrace.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/utsname.h>
+#include <sys/wait.h>
+#include <sys/xattr.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <termios.h>
+'
+
+includes_DragonFly='
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include <sys/ioctl.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <termios.h>
+#include <netinet/ip.h>
+#include <net/ip_mroute/ip_mroute.h>
+'
+
+includes_FreeBSD='
+#include <sys/capsicum.h>
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/disk.h>
+#include <sys/event.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include <sys/ioctl.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <termios.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+#include <sys/extattr.h>
+
+#if __FreeBSD__ >= 10
+#define IFT_CARP	0xf8	// IFT_CARP is deprecated in FreeBSD 10
+#undef SIOCAIFADDR
+#define SIOCAIFADDR	_IOW(105, 26, struct oifaliasreq)	// ifaliasreq contains if_data
+#undef SIOCSIFPHYADDR
+#define SIOCSIFPHYADDR	_IOW(105, 70, struct oifaliasreq)	// ifaliasreq contains if_data
+#endif
+'
+
+includes_Linux='
+#define _LARGEFILE_SOURCE
+#define _LARGEFILE64_SOURCE
+#ifndef __LP64__
+#define _FILE_OFFSET_BITS 64
+#endif
+#define _GNU_SOURCE
+
+// <sys/ioctl.h> is broken on powerpc64, as it fails to include definitions of
+// these structures. We just include them copied from <bits/termios.h>.
+#if defined(__powerpc__)
+struct sgttyb {
+        char    sg_ispeed;
+        char    sg_ospeed;
+        char    sg_erase;
+        char    sg_kill;
+        short   sg_flags;
+};
+
+struct tchars {
+        char    t_intrc;
+        char    t_quitc;
+        char    t_startc;
+        char    t_stopc;
+        char    t_eofc;
+        char    t_brkc;
+};
+
+struct ltchars {
+        char    t_suspc;
+        char    t_dsuspc;
+        char    t_rprntc;
+        char    t_flushc;
+        char    t_werasc;
+        char    t_lnextc;
+};
+#endif
+
+#include <bits/sockaddr.h>
+#include <sys/epoll.h>
+#include <sys/eventfd.h>
+#include <sys/inotify.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/select.h>
+#include <sys/signalfd.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+#include <sys/xattr.h>
+#include <linux/bpf.h>
+#include <linux/can.h>
+#include <linux/capability.h>
+#include <linux/cryptouser.h>
+#include <linux/devlink.h>
+#include <linux/errqueue.h>
+#include <linux/falloc.h>
+#include <linux/fanotify.h>
+#include <linux/filter.h>
+#include <linux/fs.h>
+#include <linux/fscrypt.h>
+#include <linux/fsverity.h>
+#include <linux/genetlink.h>
+#include <linux/hdreg.h>
+#include <linux/icmpv6.h>
+#include <linux/if.h>
+#include <linux/if_addr.h>
+#include <linux/if_alg.h>
+#include <linux/if_arp.h>
+#include <linux/if_ether.h>
+#include <linux/if_ppp.h>
+#include <linux/if_tun.h>
+#include <linux/if_packet.h>
+#include <linux/if_xdp.h>
+#include <linux/kexec.h>
+#include <linux/keyctl.h>
+#include <linux/loop.h>
+#include <linux/magic.h>
+#include <linux/memfd.h>
+#include <linux/module.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netlink.h>
+#include <linux/net_namespace.h>
+#include <linux/nsfs.h>
+#include <linux/perf_event.h>
+#include <linux/ptrace.h>
+#include <linux/random.h>
+#include <linux/reboot.h>
+#include <linux/rtc.h>
+#include <linux/rtnetlink.h>
+#include <linux/sched.h>
+#include <linux/seccomp.h>
+#include <linux/serial.h>
+#include <linux/sockios.h>
+#include <linux/taskstats.h>
+#include <linux/tipc.h>
+#include <linux/vm_sockets.h>
+#include <linux/wait.h>
+#include <linux/watchdog.h>
+
+#include <mtd/ubi-user.h>
+#include <net/route.h>
+
+#if defined(__sparc__)
+// On sparc{,64}, the kernel defines struct termios2 itself which clashes with the
+// definition in glibc. As only the error constants are needed here, include the
+// generic termibits.h (which is included by termbits.h on sparc).
+#include <asm-generic/termbits.h>
+#else
+#include <asm/termbits.h>
+#endif
+
+#ifndef MSG_FASTOPEN
+#define MSG_FASTOPEN    0x20000000
+#endif
+
+#ifndef PTRACE_GETREGS
+#define PTRACE_GETREGS	0xc
+#endif
+
+#ifndef PTRACE_SETREGS
+#define PTRACE_SETREGS	0xd
+#endif
+
+#ifndef SOL_NETLINK
+#define SOL_NETLINK	270
+#endif
+
+#ifdef SOL_BLUETOOTH
+// SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
+// but it is already in bluetooth_linux.go
+#undef SOL_BLUETOOTH
+#endif
+
+// Certain constants are missing from the fs/crypto UAPI
+#define FS_KEY_DESC_PREFIX              "fscrypt:"
+#define FS_KEY_DESC_PREFIX_SIZE         8
+#define FS_MAX_KEY_SIZE                 64
+
+// The code generator produces -0x1 for (~0), but an unsigned value is necessary
+// for the tipc_subscr timeout __u32 field.
+#undef TIPC_WAIT_FOREVER
+#define TIPC_WAIT_FOREVER 0xffffffff
+
+// Copied from linux/l2tp.h
+// Including linux/l2tp.h here causes conflicts between linux/in.h
+// and netinet/in.h included via net/route.h above.
+#define IPPROTO_L2TP		115
+'
+
+includes_NetBSD='
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/event.h>
+#include <sys/extattr.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/termios.h>
+#include <sys/ttycom.h>
+#include <sys/wait.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+#include <netinet/if_ether.h>
+
+// Needed since <sys/param.h> refers to it...
+#define schedppq 1
+'
+
+includes_OpenBSD='
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/event.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/termios.h>
+#include <sys/ttycom.h>
+#include <sys/unistd.h>
+#include <sys/wait.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/if_var.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+#include <netinet/if_ether.h>
+#include <net/if_bridge.h>
+
+// We keep some constants not supported in OpenBSD 5.5 and beyond for
+// the promise of compatibility.
+#define EMUL_ENABLED		0x1
+#define EMUL_NATIVE		0x2
+#define IPV6_FAITH		0x1d
+#define IPV6_OPTIONS		0x1
+#define IPV6_RTHDR_STRICT	0x1
+#define IPV6_SOCKOPT_RESERVED1	0x3
+#define SIOCGIFGENERIC		0xc020693a
+#define SIOCSIFGENERIC		0x80206939
+#define WALTSIG			0x4
+'
+
+includes_SunOS='
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <sys/ioctl.h>
+#include <sys/mkdev.h>
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <termios.h>
+#include <netinet/ip.h>
+#include <netinet/ip_mroute.h>
+'
+
+
+includes='
+#include <sys/types.h>
+#include <sys/file.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <errno.h>
+#include <sys/signal.h>
+#include <signal.h>
+#include <sys/resource.h>
+#include <time.h>
+'
+ccflags="$@"
+
+# Write go tool cgo -godefs input.
+(
+	echo package unix
+	echo
+	echo '/*'
+	indirect="includes_$(uname)"
+	echo "${!indirect} $includes"
+	echo '*/'
+	echo 'import "C"'
+	echo 'import "syscall"'
+	echo
+	echo 'const ('
+
+	# The gcc command line prints all the #defines
+	# it encounters while processing the input
+	echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
+	awk '
+		$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
+
+		$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next}  # 386 registers
+		$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
+		$2 ~ /^(SCM_SRCRT)$/ {next}
+		$2 ~ /^(MAP_FAILED)$/ {next}
+		$2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc.
+
+		$2 ~ /^EXTATTR_NAMESPACE_NAMES/ ||
+		$2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next}
+
+		$2 !~ /^ECCAPBITS/ &&
+		$2 !~ /^ETH_/ &&
+		$2 !~ /^EPROC_/ &&
+		$2 !~ /^EQUIV_/ &&
+		$2 !~ /^EXPR_/ &&
+		$2 ~ /^E[A-Z0-9_]+$/ ||
+		$2 ~ /^B[0-9_]+$/ ||
+		$2 ~ /^(OLD|NEW)DEV$/ ||
+		$2 == "BOTHER" ||
+		$2 ~ /^CI?BAUD(EX)?$/ ||
+		$2 == "IBSHIFT" ||
+		$2 ~ /^V[A-Z0-9]+$/ ||
+		$2 ~ /^CS[A-Z0-9]/ ||
+		$2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
+		$2 ~ /^IGN/ ||
+		$2 ~ /^IX(ON|ANY|OFF)$/ ||
+		$2 ~ /^IN(LCR|PCK)$/ ||
+		$2 !~ "X86_CR3_PCID_NOFLUSH" &&
+		$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
+		$2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
+		$2 == "BRKINT" ||
+		$2 == "HUPCL" ||
+		$2 == "PENDIN" ||
+		$2 == "TOSTOP" ||
+		$2 == "XCASE" ||
+		$2 == "ALTWERASE" ||
+		$2 == "NOKERNINFO" ||
+		$2 == "NFDBITS" ||
+		$2 ~ /^PAR/ ||
+		$2 ~ /^SIG[^_]/ ||
+		$2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
+		$2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
+		$2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
+		$2 ~ /^O?XTABS$/ ||
+		$2 ~ /^TC[IO](ON|OFF)$/ ||
+		$2 ~ /^IN_/ ||
+		$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
+		$2 ~ /^LO_(KEY|NAME)_SIZE$/ ||
+		$2 ~ /^LOOP_(CLR|CTL|GET|SET)_/ ||
+		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|MCAST|EVFILT|NOTE|EV|SHUT|PROT|MAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
+		$2 ~ /^TP_STATUS_/ ||
+		$2 ~ /^FALLOC_/ ||
+		$2 == "ICMPV6_FILTER" ||
+		$2 == "SOMAXCONN" ||
+		$2 == "NAME_MAX" ||
+		$2 == "IFNAMSIZ" ||
+		$2 ~ /^CTL_(HW|KERN|MAXNAME|NET|QUERY)$/ ||
+		$2 ~ /^KERN_(HOSTNAME|OS(RELEASE|TYPE)|VERSION)$/ ||
+		$2 ~ /^HW_MACHINE$/ ||
+		$2 ~ /^SYSCTL_VERS/ ||
+		$2 !~ "MNT_BITS" &&
+		$2 ~ /^(MS|MNT|UMOUNT)_/ ||
+		$2 ~ /^NS_GET_/ ||
+		$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
+		$2 ~ /^(O|F|[ES]?FD|NAME|S|PTRACE|PT)_/ ||
+		$2 ~ /^KEXEC_/ ||
+		$2 ~ /^LINUX_REBOOT_CMD_/ ||
+		$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
+		$2 ~ /^MODULE_INIT_/ ||
+		$2 !~ "NLA_TYPE_MASK" &&
+		$2 !~ /^RTC_VL_(ACCURACY|BACKUP|DATA)/ &&
+		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ ||
+		$2 ~ /^SIOC/ ||
+		$2 ~ /^TIOC/ ||
+		$2 ~ /^TCGET/ ||
+		$2 ~ /^TCSET/ ||
+		$2 ~ /^TC(FLSH|SBRKP?|XONC)$/ ||
+		$2 !~ "RTF_BITS" &&
+		$2 ~ /^(IFF|IFT|NET_RT|RTM(GRP)?|RTF|RTV|RTA|RTAX)_/ ||
+		$2 ~ /^BIOC/ ||
+		$2 ~ /^DIOC/ ||
+		$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
+		$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|LOCKS|MEMLOCK|MSGQUEUE|NICE|NOFILE|NPROC|RSS|RTPRIO|RTTIME|SIGPENDING|STACK)|RLIM_INFINITY/ ||
+		$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
+		$2 ~ /^CLONE_[A-Z_]+/ ||
+		$2 !~ /^(BPF_TIMEVAL|BPF_FIB_LOOKUP_[A-Z]+)$/ &&
+		$2 ~ /^(BPF|DLT)_/ ||
+		$2 ~ /^(CLOCK|TIMER)_/ ||
+		$2 ~ /^CAN_/ ||
+		$2 ~ /^CAP_/ ||
+		$2 ~ /^ALG_/ ||
+		$2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE)/ ||
+		$2 ~ /^FS_IOC_.*(ENCRYPTION|VERITY|GETFLAGS)/ ||
+		$2 ~ /^FS_VERITY_/ ||
+		$2 ~ /^FSCRYPT_/ ||
+		$2 ~ /^GRND_/ ||
+		$2 ~ /^RND/ ||
+		$2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
+		$2 ~ /^KEYCTL_/ ||
+		$2 ~ /^PERF_EVENT_IOC_/ ||
+		$2 ~ /^SECCOMP_MODE_/ ||
+		$2 ~ /^SPLICE_/ ||
+		$2 ~ /^SYNC_FILE_RANGE_/ ||
+		$2 !~ /^AUDIT_RECORD_MAGIC/ &&
+		$2 !~ /IOC_MAGIC/ &&
+		$2 ~ /^[A-Z][A-Z0-9_]+_MAGIC2?$/ ||
+		$2 ~ /^(VM|VMADDR)_/ ||
+		$2 ~ /^IOCTL_VM_SOCKETS_/ ||
+		$2 ~ /^(TASKSTATS|TS)_/ ||
+		$2 ~ /^CGROUPSTATS_/ ||
+		$2 ~ /^GENL_/ ||
+		$2 ~ /^STATX_/ ||
+		$2 ~ /^RENAME/ ||
+		$2 ~ /^UBI_IOC[A-Z]/ ||
+		$2 ~ /^UTIME_/ ||
+		$2 ~ /^XATTR_(CREATE|REPLACE|NO(DEFAULT|FOLLOW|SECURITY)|SHOWCOMPRESSION)/ ||
+		$2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ ||
+		$2 ~ /^FSOPT_/ ||
+		$2 ~ /^WDIOC_/ ||
+		$2 ~ /^NFN/ ||
+		$2 ~ /^XDP_/ ||
+		$2 ~ /^RWF_/ ||
+		$2 ~ /^(HDIO|WIN|SMART)_/ ||
+		$2 ~ /^CRYPTO_/ ||
+		$2 ~ /^TIPC_/ ||
+		$2 ~ /^DEVLINK_/ ||
+		$2 !~ "WMESGLEN" &&
+		$2 ~ /^W[A-Z0-9]+$/ ||
+		$2 ~/^PPPIOC/ ||
+		$2 ~ /^FAN_|FANOTIFY_/ ||
+		$2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)}
+		$2 ~ /^__WCOREFLAG$/ {next}
+		$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
+
+		{next}
+	' | sort
+
+	echo ')'
+) >_const.go
+
+# Pull out the error names for later.
+errors=$(
+	echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
+	sort
+)
+
+# Pull out the signal names for later.
+signals=$(
+	echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
+	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
+	sort
+)
+
+# Again, writing regexps to a file.
+echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
+	sort >_error.grep
+echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
+	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
+	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
+	sort >_signal.grep
+
+echo '// mkerrors.sh' "$@"
+echo '// Code generated by the command above; see README.md. DO NOT EDIT.'
+echo
+echo "// +build ${GOARCH},${GOOS}"
+echo
+go tool cgo -godefs -- "$@" _const.go >_error.out
+cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
+echo
+echo '// Errors'
+echo 'const ('
+cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/'
+echo ')'
+
+echo
+echo '// Signals'
+echo 'const ('
+cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/'
+echo ')'
+
+# Run C program to print error and syscall strings.
+(
+	echo -E "
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <ctype.h>
+#include <string.h>
+#include <signal.h>
+
+#define nelem(x) (sizeof(x)/sizeof((x)[0]))
+
+enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
+
+struct tuple {
+	int num;
+	const char *name;
+};
+
+struct tuple errors[] = {
+"
+	for i in $errors
+	do
+		echo -E '	{'$i', "'$i'" },'
+	done
+
+	echo -E "
+};
+
+struct tuple signals[] = {
+"
+	for i in $signals
+	do
+		echo -E '	{'$i', "'$i'" },'
+	done
+
+	# Use -E because on some systems bash builtin interprets \n itself.
+	echo -E '
+};
+
+static int
+tuplecmp(const void *a, const void *b)
+{
+	return ((struct tuple *)a)->num - ((struct tuple *)b)->num;
+}
+
+int
+main(void)
+{
+	int i, e;
+	char buf[1024], *p;
+
+	printf("\n\n// Error table\n");
+	printf("var errorList = [...]struct {\n");
+	printf("\tnum  syscall.Errno\n");
+	printf("\tname string\n");
+	printf("\tdesc string\n");
+	printf("} {\n");
+	qsort(errors, nelem(errors), sizeof errors[0], tuplecmp);
+	for(i=0; i<nelem(errors); i++) {
+		e = errors[i].num;
+		if(i > 0 && errors[i-1].num == e)
+			continue;
+		strcpy(buf, strerror(e));
+		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
+		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
+			buf[0] += a - A;
+		printf("\t{ %d, \"%s\", \"%s\" },\n", e, errors[i].name, buf);
+	}
+	printf("}\n\n");
+
+	printf("\n\n// Signal table\n");
+	printf("var signalList = [...]struct {\n");
+	printf("\tnum  syscall.Signal\n");
+	printf("\tname string\n");
+	printf("\tdesc string\n");
+	printf("} {\n");
+	qsort(signals, nelem(signals), sizeof signals[0], tuplecmp);
+	for(i=0; i<nelem(signals); i++) {
+		e = signals[i].num;
+		if(i > 0 && signals[i-1].num == e)
+			continue;
+		strcpy(buf, strsignal(e));
+		// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
+		if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
+			buf[0] += a - A;
+		// cut trailing : number.
+		p = strrchr(buf, ":"[0]);
+		if(p)
+			*p = '\0';
+		printf("\t{ %d, \"%s\", \"%s\" },\n", e, signals[i].name, buf);
+	}
+	printf("}\n\n");
+
+	return 0;
+}
+
+'
+) >_errors.c
+
+$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/mkerrors.bash b/pkg/metadata/vendor/golang.org/x/sys/windows/mkerrors.bash
new file mode 100644
index 000000000..2163843a1
--- /dev/null
+++ b/pkg/metadata/vendor/golang.org/x/sys/windows/mkerrors.bash
@@ -0,0 +1,63 @@
+#!/bin/bash
+
+# Copyright 2019 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+set -e
+shopt -s nullglob
+
+winerror="$(printf '%s\n' "/mnt/c/Program Files (x86)/Windows Kits/"/*/Include/*/shared/winerror.h | sort -Vr | head -n 1)"
+[[ -n $winerror ]] || { echo "Unable to find winerror.h" >&2; exit 1; }
+
+declare -A errors
+
+{
+	echo "// Code generated by 'mkerrors.bash'; DO NOT EDIT."
+	echo
+	echo "package windows"
+	echo "import \"syscall\""
+	echo "const ("
+
+	while read -r line; do
+		unset vtype
+		if [[ $line =~ ^#define\ +([A-Z0-9_]+k?)\ +([A-Z0-9_]+\()?([A-Z][A-Z0-9_]+k?)\)? ]]; then
+			key="${BASH_REMATCH[1]}"
+			value="${BASH_REMATCH[3]}"
+		elif [[ $line =~ ^#define\ +([A-Z0-9_]+k?)\ +([A-Z0-9_]+\()?((0x)?[0-9A-Fa-f]+)L?\)? ]]; then
+			key="${BASH_REMATCH[1]}"
+			value="${BASH_REMATCH[3]}"
+			vtype="${BASH_REMATCH[2]}"
+		elif [[ $line =~ ^#define\ +([A-Z0-9_]+k?)\ +\(\(([A-Z]+)\)((0x)?[0-9A-Fa-f]+)L?\) ]]; then
+			key="${BASH_REMATCH[1]}"
+			value="${BASH_REMATCH[3]}"
+			vtype="${BASH_REMATCH[2]}"
+		else
+			continue
+		fi
+		[[ -n $key && -n $value ]] || continue
+		[[ -z ${errors["$key"]} ]] || continue
+		errors["$key"]="$value"
+		if [[ -v vtype ]]; then
+			if [[ $key == FACILITY_* || $key == NO_ERROR ]]; then
+				vtype=""
+			elif [[ $vtype == *HANDLE* || $vtype == *HRESULT* ]]; then
+				vtype="Handle"
+			else
+				vtype="syscall.Errno"
+			fi
+			last_vtype="$vtype"
+		else
+			vtype=""
+			if [[ $last_vtype == Handle && $value == NO_ERROR ]]; then
+				value="S_OK"
+			elif [[ $last_vtype == syscall.Errno && $value == NO_ERROR ]]; then
+				value="ERROR_SUCCESS"
+			fi
+		fi
+
+		echo "$key $vtype = $value"
+	done < "$winerror"
+
+	echo ")"
+} | gofmt > "zerrors_windows.go"
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/mkknownfolderids.bash b/pkg/metadata/vendor/golang.org/x/sys/windows/mkknownfolderids.bash
new file mode 100644
index 000000000..ab8924e93
--- /dev/null
+++ b/pkg/metadata/vendor/golang.org/x/sys/windows/mkknownfolderids.bash
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# Copyright 2019 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+set -e
+shopt -s nullglob
+
+knownfolders="$(printf '%s\n' "/mnt/c/Program Files (x86)/Windows Kits/"/*/Include/*/um/KnownFolders.h | sort -Vr | head -n 1)"
+[[ -n $knownfolders ]] || { echo "Unable to find KnownFolders.h" >&2; exit 1; }
+
+{
+	echo "// Code generated by 'mkknownfolderids.bash'; DO NOT EDIT."
+	echo
+	echo "package windows"
+	echo "type KNOWNFOLDERID GUID"
+	echo "var ("
+	while read -r line; do
+		[[ $line =~ DEFINE_KNOWN_FOLDER\((FOLDERID_[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+)\) ]] || continue
+		printf "%s = &KNOWNFOLDERID{0x%08x, 0x%04x, 0x%04x, [8]byte{0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x}}\n" \
+			"${BASH_REMATCH[1]}" $(( "${BASH_REMATCH[2]}" )) $(( "${BASH_REMATCH[3]}" )) $(( "${BASH_REMATCH[4]}" )) \
+			$(( "${BASH_REMATCH[5]}" )) $(( "${BASH_REMATCH[6]}" )) $(( "${BASH_REMATCH[7]}" )) $(( "${BASH_REMATCH[8]}" )) \
+			$(( "${BASH_REMATCH[9]}" )) $(( "${BASH_REMATCH[10]}" )) $(( "${BASH_REMATCH[11]}" )) $(( "${BASH_REMATCH[12]}" ))
+	done < "$knownfolders"
+	echo ")"
+} | gofmt > "zknownfolderids_windows.go"
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/event.go b/pkg/metadata/vendor/golang.org/x/sys/windows/svc/event.go
deleted file mode 100644
index 0508e2288..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/event.go
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-package svc
-
-import (
-	"errors"
-
-	"golang.org/x/sys/windows"
-)
-
-// event represents auto-reset, initially non-signaled Windows event.
-// It is used to communicate between go and asm parts of this package.
-type event struct {
-	h windows.Handle
-}
-
-func newEvent() (*event, error) {
-	h, err := windows.CreateEvent(nil, 0, 0, nil)
-	if err != nil {
-		return nil, err
-	}
-	return &event{h: h}, nil
-}
-
-func (e *event) Close() error {
-	return windows.CloseHandle(e.h)
-}
-
-func (e *event) Set() error {
-	return windows.SetEvent(e.h)
-}
-
-func (e *event) Wait() error {
-	s, err := windows.WaitForSingleObject(e.h, windows.INFINITE)
-	switch s {
-	case windows.WAIT_OBJECT_0:
-		break
-	case windows.WAIT_FAILED:
-		return err
-	default:
-		return errors.New("unexpected result from WaitForSingleObject")
-	}
-	return nil
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/go12.c b/pkg/metadata/vendor/golang.org/x/sys/windows/svc/go12.c
deleted file mode 100644
index 6f1be1fa3..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/go12.c
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-// +build !go1.3
-
-// copied from pkg/runtime
-typedef	unsigned int	uint32;
-typedef	unsigned long long int	uint64;
-#ifdef _64BIT
-typedef	uint64		uintptr;
-#else
-typedef	uint32		uintptr;
-#endif
-
-// from sys_386.s or sys_amd64.s
-void ·servicemain(void);
-
-void
-·getServiceMain(uintptr *r)
-{
-	*r = (uintptr)·servicemain;
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/go12.go b/pkg/metadata/vendor/golang.org/x/sys/windows/svc/go12.go
deleted file mode 100644
index cd8b913c9..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/go12.go
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-// +build !go1.3
-
-package svc
-
-// from go12.c
-func getServiceMain(r *uintptr)
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/go13.go b/pkg/metadata/vendor/golang.org/x/sys/windows/svc/go13.go
deleted file mode 100644
index 9d7f3cec5..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/go13.go
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-// +build go1.3
-
-package svc
-
-import "unsafe"
-
-const ptrSize = 4 << (^uintptr(0) >> 63) // unsafe.Sizeof(uintptr(0)) but an ideal const
-
-// Should be a built-in for unsafe.Pointer?
-func add(p unsafe.Pointer, x uintptr) unsafe.Pointer {
-	return unsafe.Pointer(uintptr(p) + x)
-}
-
-// funcPC returns the entry PC of the function f.
-// It assumes that f is a func value. Otherwise the behavior is undefined.
-func funcPC(f interface{}) uintptr {
-	return **(**uintptr)(add(unsafe.Pointer(&f), ptrSize))
-}
-
-// from sys_386.s and sys_amd64.s
-func servicectlhandler(ctl uint32) uintptr
-func servicemain(argc uint32, argv **uint16)
-
-func getServiceMain(r *uintptr) {
-	*r = funcPC(servicemain)
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/security.go b/pkg/metadata/vendor/golang.org/x/sys/windows/svc/security.go
deleted file mode 100644
index 6fbc9236e..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/security.go
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-package svc
-
-import (
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-func allocSid(subAuth0 uint32) (*windows.SID, error) {
-	var sid *windows.SID
-	err := windows.AllocateAndInitializeSid(&windows.SECURITY_NT_AUTHORITY,
-		1, subAuth0, 0, 0, 0, 0, 0, 0, 0, &sid)
-	if err != nil {
-		return nil, err
-	}
-	return sid, nil
-}
-
-// IsAnInteractiveSession determines if calling process is running interactively.
-// It queries the process token for membership in the Interactive group.
-// http://stackoverflow.com/questions/2668851/how-do-i-detect-that-my-application-is-running-as-service-or-in-an-interactive-s
-func IsAnInteractiveSession() (bool, error) {
-	interSid, err := allocSid(windows.SECURITY_INTERACTIVE_RID)
-	if err != nil {
-		return false, err
-	}
-	defer windows.FreeSid(interSid)
-
-	serviceSid, err := allocSid(windows.SECURITY_SERVICE_RID)
-	if err != nil {
-		return false, err
-	}
-	defer windows.FreeSid(serviceSid)
-
-	t, err := windows.OpenCurrentProcessToken()
-	if err != nil {
-		return false, err
-	}
-	defer t.Close()
-
-	gs, err := t.GetTokenGroups()
-	if err != nil {
-		return false, err
-	}
-	p := unsafe.Pointer(&gs.Groups[0])
-	groups := (*[2 << 20]windows.SIDAndAttributes)(p)[:gs.GroupCount]
-	for _, g := range groups {
-		if windows.EqualSid(g.Sid, interSid) {
-			return true, nil
-		}
-		if windows.EqualSid(g.Sid, serviceSid) {
-			return false, nil
-		}
-	}
-	return false, nil
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/service.go b/pkg/metadata/vendor/golang.org/x/sys/windows/svc/service.go
deleted file mode 100644
index ee3d6965a..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/service.go
+++ /dev/null
@@ -1,364 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-// Package svc provides everything required to build Windows service.
-//
-package svc
-
-import (
-	"errors"
-	"runtime"
-	"syscall"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-// State describes service execution state (Stopped, Running and so on).
-type State uint32
-
-const (
-	Stopped         = State(windows.SERVICE_STOPPED)
-	StartPending    = State(windows.SERVICE_START_PENDING)
-	StopPending     = State(windows.SERVICE_STOP_PENDING)
-	Running         = State(windows.SERVICE_RUNNING)
-	ContinuePending = State(windows.SERVICE_CONTINUE_PENDING)
-	PausePending    = State(windows.SERVICE_PAUSE_PENDING)
-	Paused          = State(windows.SERVICE_PAUSED)
-)
-
-// Cmd represents service state change request. It is sent to a service
-// by the service manager, and should be actioned upon by the service.
-type Cmd uint32
-
-const (
-	Stop                  = Cmd(windows.SERVICE_CONTROL_STOP)
-	Pause                 = Cmd(windows.SERVICE_CONTROL_PAUSE)
-	Continue              = Cmd(windows.SERVICE_CONTROL_CONTINUE)
-	Interrogate           = Cmd(windows.SERVICE_CONTROL_INTERROGATE)
-	Shutdown              = Cmd(windows.SERVICE_CONTROL_SHUTDOWN)
-	ParamChange           = Cmd(windows.SERVICE_CONTROL_PARAMCHANGE)
-	NetBindAdd            = Cmd(windows.SERVICE_CONTROL_NETBINDADD)
-	NetBindRemove         = Cmd(windows.SERVICE_CONTROL_NETBINDREMOVE)
-	NetBindEnable         = Cmd(windows.SERVICE_CONTROL_NETBINDENABLE)
-	NetBindDisable        = Cmd(windows.SERVICE_CONTROL_NETBINDDISABLE)
-	DeviceEvent           = Cmd(windows.SERVICE_CONTROL_DEVICEEVENT)
-	HardwareProfileChange = Cmd(windows.SERVICE_CONTROL_HARDWAREPROFILECHANGE)
-	PowerEvent            = Cmd(windows.SERVICE_CONTROL_POWEREVENT)
-	SessionChange         = Cmd(windows.SERVICE_CONTROL_SESSIONCHANGE)
-)
-
-// Accepted is used to describe commands accepted by the service.
-// Note that Interrogate is always accepted.
-type Accepted uint32
-
-const (
-	AcceptStop                  = Accepted(windows.SERVICE_ACCEPT_STOP)
-	AcceptShutdown              = Accepted(windows.SERVICE_ACCEPT_SHUTDOWN)
-	AcceptPauseAndContinue      = Accepted(windows.SERVICE_ACCEPT_PAUSE_CONTINUE)
-	AcceptParamChange           = Accepted(windows.SERVICE_ACCEPT_PARAMCHANGE)
-	AcceptNetBindChange         = Accepted(windows.SERVICE_ACCEPT_NETBINDCHANGE)
-	AcceptHardwareProfileChange = Accepted(windows.SERVICE_ACCEPT_HARDWAREPROFILECHANGE)
-	AcceptPowerEvent            = Accepted(windows.SERVICE_ACCEPT_POWEREVENT)
-	AcceptSessionChange         = Accepted(windows.SERVICE_ACCEPT_SESSIONCHANGE)
-)
-
-// Status combines State and Accepted commands to fully describe running service.
-type Status struct {
-	State      State
-	Accepts    Accepted
-	CheckPoint uint32 // used to report progress during a lengthy operation
-	WaitHint   uint32 // estimated time required for a pending operation, in milliseconds
-	ProcessId  uint32 // if the service is running, the process identifier of it, and otherwise zero
-}
-
-// ChangeRequest is sent to the service Handler to request service status change.
-type ChangeRequest struct {
-	Cmd           Cmd
-	EventType     uint32
-	EventData     uintptr
-	CurrentStatus Status
-	Context       uintptr
-}
-
-// Handler is the interface that must be implemented to build Windows service.
-type Handler interface {
-
-	// Execute will be called by the package code at the start of
-	// the service, and the service will exit once Execute completes.
-	// Inside Execute you must read service change requests from r and
-	// act accordingly. You must keep service control manager up to date
-	// about state of your service by writing into s as required.
-	// args contains service name followed by argument strings passed
-	// to the service.
-	// You can provide service exit code in exitCode return parameter,
-	// with 0 being "no error". You can also indicate if exit code,
-	// if any, is service specific or not by using svcSpecificEC
-	// parameter.
-	Execute(args []string, r <-chan ChangeRequest, s chan<- Status) (svcSpecificEC bool, exitCode uint32)
-}
-
-var (
-	// These are used by asm code.
-	goWaitsH                       uintptr
-	cWaitsH                        uintptr
-	ssHandle                       uintptr
-	sName                          *uint16
-	sArgc                          uintptr
-	sArgv                          **uint16
-	ctlHandlerExProc               uintptr
-	cSetEvent                      uintptr
-	cWaitForSingleObject           uintptr
-	cRegisterServiceCtrlHandlerExW uintptr
-)
-
-func init() {
-	k := windows.NewLazySystemDLL("kernel32.dll")
-	cSetEvent = k.NewProc("SetEvent").Addr()
-	cWaitForSingleObject = k.NewProc("WaitForSingleObject").Addr()
-	a := windows.NewLazySystemDLL("advapi32.dll")
-	cRegisterServiceCtrlHandlerExW = a.NewProc("RegisterServiceCtrlHandlerExW").Addr()
-}
-
-type ctlEvent struct {
-	cmd       Cmd
-	eventType uint32
-	eventData uintptr
-	context   uintptr
-	errno     uint32
-}
-
-// service provides access to windows service api.
-type service struct {
-	name    string
-	h       windows.Handle
-	cWaits  *event
-	goWaits *event
-	c       chan ctlEvent
-	handler Handler
-}
-
-func newService(name string, handler Handler) (*service, error) {
-	var s service
-	var err error
-	s.name = name
-	s.c = make(chan ctlEvent)
-	s.handler = handler
-	s.cWaits, err = newEvent()
-	if err != nil {
-		return nil, err
-	}
-	s.goWaits, err = newEvent()
-	if err != nil {
-		s.cWaits.Close()
-		return nil, err
-	}
-	return &s, nil
-}
-
-func (s *service) close() error {
-	s.cWaits.Close()
-	s.goWaits.Close()
-	return nil
-}
-
-type exitCode struct {
-	isSvcSpecific bool
-	errno         uint32
-}
-
-func (s *service) updateStatus(status *Status, ec *exitCode) error {
-	if s.h == 0 {
-		return errors.New("updateStatus with no service status handle")
-	}
-	var t windows.SERVICE_STATUS
-	t.ServiceType = windows.SERVICE_WIN32_OWN_PROCESS
-	t.CurrentState = uint32(status.State)
-	if status.Accepts&AcceptStop != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_STOP
-	}
-	if status.Accepts&AcceptShutdown != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_SHUTDOWN
-	}
-	if status.Accepts&AcceptPauseAndContinue != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_PAUSE_CONTINUE
-	}
-	if status.Accepts&AcceptParamChange != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_PARAMCHANGE
-	}
-	if status.Accepts&AcceptNetBindChange != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_NETBINDCHANGE
-	}
-	if status.Accepts&AcceptHardwareProfileChange != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_HARDWAREPROFILECHANGE
-	}
-	if status.Accepts&AcceptPowerEvent != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_POWEREVENT
-	}
-	if status.Accepts&AcceptSessionChange != 0 {
-		t.ControlsAccepted |= windows.SERVICE_ACCEPT_SESSIONCHANGE
-	}
-	if ec.errno == 0 {
-		t.Win32ExitCode = windows.NO_ERROR
-		t.ServiceSpecificExitCode = windows.NO_ERROR
-	} else if ec.isSvcSpecific {
-		t.Win32ExitCode = uint32(windows.ERROR_SERVICE_SPECIFIC_ERROR)
-		t.ServiceSpecificExitCode = ec.errno
-	} else {
-		t.Win32ExitCode = ec.errno
-		t.ServiceSpecificExitCode = windows.NO_ERROR
-	}
-	t.CheckPoint = status.CheckPoint
-	t.WaitHint = status.WaitHint
-	return windows.SetServiceStatus(s.h, &t)
-}
-
-const (
-	sysErrSetServiceStatusFailed = uint32(syscall.APPLICATION_ERROR) + iota
-	sysErrNewThreadInCallback
-)
-
-func (s *service) run() {
-	s.goWaits.Wait()
-	s.h = windows.Handle(ssHandle)
-	argv := (*[100]*int16)(unsafe.Pointer(sArgv))[:sArgc]
-	args := make([]string, len(argv))
-	for i, a := range argv {
-		args[i] = syscall.UTF16ToString((*[1 << 20]uint16)(unsafe.Pointer(a))[:])
-	}
-
-	cmdsToHandler := make(chan ChangeRequest)
-	changesFromHandler := make(chan Status)
-	exitFromHandler := make(chan exitCode)
-
-	go func() {
-		ss, errno := s.handler.Execute(args, cmdsToHandler, changesFromHandler)
-		exitFromHandler <- exitCode{ss, errno}
-	}()
-
-	ec := exitCode{isSvcSpecific: true, errno: 0}
-	outcr := ChangeRequest{
-		CurrentStatus: Status{State: Stopped},
-	}
-	var outch chan ChangeRequest
-	inch := s.c
-loop:
-	for {
-		select {
-		case r := <-inch:
-			if r.errno != 0 {
-				ec.errno = r.errno
-				break loop
-			}
-			inch = nil
-			outch = cmdsToHandler
-			outcr.Cmd = r.cmd
-			outcr.EventType = r.eventType
-			outcr.EventData = r.eventData
-			outcr.Context = r.context
-		case outch <- outcr:
-			inch = s.c
-			outch = nil
-		case c := <-changesFromHandler:
-			err := s.updateStatus(&c, &ec)
-			if err != nil {
-				// best suitable error number
-				ec.errno = sysErrSetServiceStatusFailed
-				if err2, ok := err.(syscall.Errno); ok {
-					ec.errno = uint32(err2)
-				}
-				break loop
-			}
-			outcr.CurrentStatus = c
-		case ec = <-exitFromHandler:
-			break loop
-		}
-	}
-
-	s.updateStatus(&Status{State: Stopped}, &ec)
-	s.cWaits.Set()
-}
-
-func newCallback(fn interface{}) (cb uintptr, err error) {
-	defer func() {
-		r := recover()
-		if r == nil {
-			return
-		}
-		cb = 0
-		switch v := r.(type) {
-		case string:
-			err = errors.New(v)
-		case error:
-			err = v
-		default:
-			err = errors.New("unexpected panic in syscall.NewCallback")
-		}
-	}()
-	return syscall.NewCallback(fn), nil
-}
-
-// BUG(brainman): There is no mechanism to run multiple services
-// inside one single executable. Perhaps, it can be overcome by
-// using RegisterServiceCtrlHandlerEx Windows api.
-
-// Run executes service name by calling appropriate handler function.
-func Run(name string, handler Handler) error {
-	runtime.LockOSThread()
-
-	tid := windows.GetCurrentThreadId()
-
-	s, err := newService(name, handler)
-	if err != nil {
-		return err
-	}
-
-	ctlHandler := func(ctl, evtype, evdata, context uintptr) uintptr {
-		e := ctlEvent{cmd: Cmd(ctl), eventType: uint32(evtype), eventData: evdata, context: context}
-		// We assume that this callback function is running on
-		// the same thread as Run. Nowhere in MS documentation
-		// I could find statement to guarantee that. So putting
-		// check here to verify, otherwise things will go bad
-		// quickly, if ignored.
-		i := windows.GetCurrentThreadId()
-		if i != tid {
-			e.errno = sysErrNewThreadInCallback
-		}
-		s.c <- e
-		// Always return NO_ERROR (0) for now.
-		return windows.NO_ERROR
-	}
-
-	var svcmain uintptr
-	getServiceMain(&svcmain)
-	t := []windows.SERVICE_TABLE_ENTRY{
-		{ServiceName: syscall.StringToUTF16Ptr(s.name), ServiceProc: svcmain},
-		{ServiceName: nil, ServiceProc: 0},
-	}
-
-	goWaitsH = uintptr(s.goWaits.h)
-	cWaitsH = uintptr(s.cWaits.h)
-	sName = t[0].ServiceName
-	ctlHandlerExProc, err = newCallback(ctlHandler)
-	if err != nil {
-		return err
-	}
-
-	go s.run()
-
-	err = windows.StartServiceCtrlDispatcher(&t[0])
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-// StatusHandle returns service status handle. It is safe to call this function
-// from inside the Handler.Execute because then it is guaranteed to be set.
-// This code will have to change once multiple services are possible per process.
-func StatusHandle() windows.Handle {
-	return windows.Handle(ssHandle)
-}
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/sys_386.s b/pkg/metadata/vendor/golang.org/x/sys/windows/svc/sys_386.s
deleted file mode 100644
index c8a583d73..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/sys_386.s
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-// func servicemain(argc uint32, argv **uint16)
-TEXT ·servicemain(SB),7,$0
-	MOVL	argc+0(FP), AX
-	MOVL	AX, ·sArgc(SB)
-	MOVL	argv+4(FP), AX
-	MOVL	AX, ·sArgv(SB)
-
-	PUSHL	BP
-	PUSHL	BX
-	PUSHL	SI
-	PUSHL	DI
-
-	SUBL	$12, SP
-
-	MOVL	·sName(SB), AX
-	MOVL	AX, (SP)
-	MOVL	$·servicectlhandler(SB), AX
-	MOVL	AX, 4(SP)
-	// Set context to 123456 to test issue #25660.
-	MOVL	$123456, 8(SP)
-	MOVL	·cRegisterServiceCtrlHandlerExW(SB), AX
-	MOVL	SP, BP
-	CALL	AX
-	MOVL	BP, SP
-	CMPL	AX, $0
-	JE	exit
-	MOVL	AX, ·ssHandle(SB)
-
-	MOVL	·goWaitsH(SB), AX
-	MOVL	AX, (SP)
-	MOVL	·cSetEvent(SB), AX
-	MOVL	SP, BP
-	CALL	AX
-	MOVL	BP, SP
-
-	MOVL	·cWaitsH(SB), AX
-	MOVL	AX, (SP)
-	MOVL	$-1, AX
-	MOVL	AX, 4(SP)
-	MOVL	·cWaitForSingleObject(SB), AX
-	MOVL	SP, BP
-	CALL	AX
-	MOVL	BP, SP
-
-exit:
-	ADDL	$12, SP
-
-	POPL	DI
-	POPL	SI
-	POPL	BX
-	POPL	BP
-
-	MOVL	0(SP), CX
-	ADDL	$12, SP
-	JMP	CX
-
-// I do not know why, but this seems to be the only way to call
-// ctlHandlerProc on Windows 7.
-
-// func servicectlhandler(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr {
-TEXT ·servicectlhandler(SB),7,$0
-	MOVL	·ctlHandlerExProc(SB), CX
-	JMP	CX
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/sys_amd64.s b/pkg/metadata/vendor/golang.org/x/sys/windows/svc/sys_amd64.s
deleted file mode 100644
index 2f7609c5b..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/sys_amd64.s
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-// func servicemain(argc uint32, argv **uint16)
-TEXT ·servicemain(SB),7,$0
-	MOVL	CX, ·sArgc(SB)
-	MOVQ	DX, ·sArgv(SB)
-
-	SUBQ	$32, SP		// stack for the first 4 syscall params
-
-	MOVQ	·sName(SB), CX
-	MOVQ	$·servicectlhandler(SB), DX
-	// BUG(pastarmovj): Figure out a way to pass in context in R8.
-	// Set context to 123456 to test issue #25660.
-	MOVQ	$123456, R8
-	MOVQ	·cRegisterServiceCtrlHandlerExW(SB), AX
-	CALL	AX
-	CMPQ	AX, $0
-	JE	exit
-	MOVQ	AX, ·ssHandle(SB)
-
-	MOVQ	·goWaitsH(SB), CX
-	MOVQ	·cSetEvent(SB), AX
-	CALL	AX
-
-	MOVQ	·cWaitsH(SB), CX
-	MOVQ	$4294967295, DX
-	MOVQ	·cWaitForSingleObject(SB), AX
-	CALL	AX
-
-exit:
-	ADDQ	$32, SP
-	RET
-
-// I do not know why, but this seems to be the only way to call
-// ctlHandlerProc on Windows 7.
-
-// func ·servicectlhandler(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr {
-TEXT ·servicectlhandler(SB),7,$0
-	MOVQ	·ctlHandlerExProc(SB), AX
-	JMP	AX
diff --git a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/sys_arm.s b/pkg/metadata/vendor/golang.org/x/sys/windows/svc/sys_arm.s
deleted file mode 100644
index 33c692a8d..000000000
--- a/pkg/metadata/vendor/golang.org/x/sys/windows/svc/sys_arm.s
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-#include "textflag.h"
-
-// func servicemain(argc uint32, argv **uint16)
-TEXT ·servicemain(SB),NOSPLIT|NOFRAME,$0
-	MOVM.DB.W [R4, R14], (R13)	// push {r4, lr}
-	MOVW    R13, R4
-	BIC     $0x7, R13		// alignment for ABI
-
-	MOVW	R0, ·sArgc(SB)
-	MOVW	R1, ·sArgv(SB)
-
-	MOVW	·sName(SB), R0
-	MOVW	·ctlHandlerExProc(SB), R1
-	MOVW	$0, R2
-	MOVW	·cRegisterServiceCtrlHandlerExW(SB), R3
-	BL      (R3)
-	CMP     $0, R0
-	BEQ     exit
-	MOVW	R0, ·ssHandle(SB)
-
-	MOVW	·goWaitsH(SB), R0
-	MOVW	·cSetEvent(SB), R1
-	BL      (R1)
-
-	MOVW	·cWaitsH(SB), R0
-	MOVW	$-1, R1
-	MOVW	·cWaitForSingleObject(SB), R2
-	BL      (R2)
-
-exit:
-	MOVW	R4, R13			// free extra stack space
-	MOVM.IA.W (R13), [R4, R15]	// pop {r4, pc}
diff --git a/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/.travis.sh b/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/.travis.sh
new file mode 100644
index 000000000..c59e062f7
--- /dev/null
+++ b/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/.travis.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+set -e
+
+script() {
+    if [ "${TRAVIS_PULL_REQUEST}" == "false" ];
+    then
+        COVERALLS_PARALLEL=true
+
+        if [ ! -z "$JS" ];
+        then
+            bash js.cover.sh
+        else
+            go test -covermode=count -coverprofile=profile.cov
+        fi
+
+        go get github.com/axw/gocov/gocov github.com/mattn/goveralls golang.org/x/tools/cmd/cover
+        $HOME/gopath/bin/goveralls --coverprofile=profile.cov -service=travis-ci
+    fi
+
+    if [ -z "$JS" ];
+    then
+        go get golang.org/x/lint/golint && golint ./...
+        go vet
+        go test -bench=.* -v ./...
+    fi
+}
+
+"$@"
\ No newline at end of file
diff --git a/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/.travis.yml b/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/.travis.yml
new file mode 100644
index 000000000..723ccbf0c
--- /dev/null
+++ b/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/.travis.yml
@@ -0,0 +1,19 @@
+language: go
+matrix:
+    include:
+        - os: linux
+          go: 1.11
+        - os: linux
+          go: 1.11
+          env:
+            - JS=1
+        - os: osx
+          go: 1.11
+        - os: windows
+          go: 1.11
+script: bash .travis.sh script
+notifications:
+  webhooks: https://coveralls.io/webhook
+  email:
+    on_success: never
+    on_failure: change
\ No newline at end of file
diff --git a/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/js.cover.dockerfile b/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/js.cover.dockerfile
new file mode 100644
index 000000000..241eba3e6
--- /dev/null
+++ b/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/js.cover.dockerfile
@@ -0,0 +1,9 @@
+FROM golang:1.11
+
+RUN curl -sL https://deb.nodesource.com/setup_8.x | bash
+RUN apt-get install --yes nodejs
+
+WORKDIR /go/src/github.com/djherbis/times
+COPY . .
+
+RUN GOOS=js GOARCH=wasm go test -covermode=count -coverprofile=profile.cov -exec="$(go env GOROOT)/misc/wasm/go_js_wasm_exec"
\ No newline at end of file
diff --git a/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/js.cover.sh b/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/js.cover.sh
new file mode 100644
index 000000000..150610462
--- /dev/null
+++ b/pkg/metadata/vendor/gopkg.in/djherbis/times.v1/js.cover.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+set -e
+
+docker build -f js.cover.dockerfile -t js.cover.djherbis.times .
+docker create --name js.cover.djherbis.times js.cover.djherbis.times
+docker cp js.cover.djherbis.times:/go/src/github.com/djherbis/times/profile.cov .
+docker rm -v js.cover.djherbis.times
\ No newline at end of file
diff --git a/pkg/metadata/vendor/modules.txt b/pkg/metadata/vendor/modules.txt
new file mode 100644
index 000000000..e993a4c7c
--- /dev/null
+++ b/pkg/metadata/vendor/modules.txt
@@ -0,0 +1,41 @@
+# github.com/diskfs/go-diskfs v1.1.1
+## explicit
+github.com/diskfs/go-diskfs
+github.com/diskfs/go-diskfs/disk
+github.com/diskfs/go-diskfs/filesystem
+github.com/diskfs/go-diskfs/filesystem/fat32
+github.com/diskfs/go-diskfs/filesystem/iso9660
+github.com/diskfs/go-diskfs/partition
+github.com/diskfs/go-diskfs/partition/gpt
+github.com/diskfs/go-diskfs/partition/mbr
+github.com/diskfs/go-diskfs/partition/part
+github.com/diskfs/go-diskfs/util
+# github.com/google/uuid v1.1.1
+github.com/google/uuid
+# github.com/packethost/packngo v0.1.0
+## explicit
+github.com/packethost/packngo/metadata
+# github.com/sirupsen/logrus v1.0.3
+## explicit
+github.com/sirupsen/logrus
+# github.com/stretchr/testify v1.7.0
+## explicit
+# github.com/vishvananda/netlink v0.0.0-20170808154308-f5a6f697a596
+## explicit
+github.com/vishvananda/netlink
+github.com/vishvananda/netlink/nl
+# github.com/vishvananda/netns v0.0.0-20170707011535-86bef332bfc3
+## explicit
+github.com/vishvananda/netns
+# golang.org/x/crypto v0.0.0-20180515001509-1a580b3eff78
+## explicit
+golang.org/x/crypto/ssh/terminal
+# golang.org/x/sys v0.0.0-20200420163511-1957bb5e6d1f
+golang.org/x/sys/unix
+golang.org/x/sys/windows
+# gopkg.in/airbrake/gobrake.v2 v2.0.9
+## explicit
+# gopkg.in/djherbis/times.v1 v1.2.0
+gopkg.in/djherbis/times.v1
+# gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2
+## explicit