les: light client protocol and API

11 files changed, 465 insertions, 0 deletions

diff --git a/vendor/github.com/aristanetworks/goarista/.travis.yml b/vendor/github.com/aristanetworks/goarista/.travis.yml
new file mode 100644
index 000000000..534f444ca
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/.travis.yml
@@ -0,0 +1,15 @@
+language: go
+go:
+- 1.6.2
+- tip
+before_install:
+- go get -v github.com/golang/lint/golint
+- go get -v -t -d ./...
+after_success:
+- make coverdata
+- bash <(curl -s https://codecov.io/bash)
+script:
+- make -j4 check GOTEST_FLAGS=-v
+notifications:
+  slack:
+    secure: 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
diff --git a/vendor/github.com/aristanetworks/goarista/AUTHORS b/vendor/github.com/aristanetworks/goarista/AUTHORS
new file mode 100644
index 000000000..5bb93cb3f
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/AUTHORS
@@ -0,0 +1,25 @@
+All contributors are required to sign a "Contributor License Agreement" at
+  <TBD>
+
+The following organizations and people have contributed code to this library.
+(Please keep both lists sorted alphabetically.)
+
+
+Arista Networks, Inc.
+
+
+Benoit Sigoure
+Fabrice Rabaute
+
+
+
+The list of individual contributors for code currently in HEAD can be obtained
+at any time with the following script:
+
+find . -type f \
+| while read i; do \
+  git blame -t $i 2>/dev/null; \
+  done \
+| sed 's/^[0-9a-f]\{8\} [^(]*(\([^)]*\) [-+0-9 ]\{14,\}).*/\1/;s/ *$//' \
+| awk '{a[$0]++; t++} END{for(n in a) print n}' \
+| sort
diff --git a/vendor/github.com/aristanetworks/goarista/COPYING b/vendor/github.com/aristanetworks/goarista/COPYING
new file mode 100644
index 000000000..f433b1a53
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/COPYING
@@ -0,0 +1,177 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
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+
+      "Legal Entity" shall mean the union of the acting entity and all
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
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+      including but not limited to software source code, documentation
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+
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+      transformation or translation of a Source form, including but
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+
+      "Work" shall mean the work of authorship, whether in Source or
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+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
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+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      Work (including but not limited to damages for loss of goodwill,
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+      other commercial damages or losses), even if such Contributor
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+   9. Accepting Warranty or Additional Liability. While redistributing
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+      on Your own behalf and on Your sole responsibility, not on behalf
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+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
diff --git a/vendor/github.com/aristanetworks/goarista/Dockerfile b/vendor/github.com/aristanetworks/goarista/Dockerfile
new file mode 100644
index 000000000..e8a0f4179
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/Dockerfile
@@ -0,0 +1,14 @@
+# Copyright (C) 2016  Arista Networks, Inc.
+# Use of this source code is governed by the Apache License 2.0
+# that can be found in the COPYING file.
+
+# TODO: move this to cmd/ockafka (https://github.com/docker/hub-feedback/issues/292)
+FROM golang:1.6
+
+RUN mkdir -p /go/src/github.com/aristanetworks/goarista/cmd
+WORKDIR /go/src/github.com/aristanetworks/goarista
+COPY ./ .
+RUN go get -d ./cmd/ockafka/... \
+  && go install ./cmd/ockafka
+
+ENTRYPOINT ["/go/bin/ockafka"]
diff --git a/vendor/github.com/aristanetworks/goarista/Makefile b/vendor/github.com/aristanetworks/goarista/Makefile
new file mode 100644
index 000000000..4ef2468dd
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/Makefile
@@ -0,0 +1,58 @@
+# Copyright (C) 2015  Arista Networks, Inc.
+# Use of this source code is governed by the Apache License 2.0
+# that can be found in the COPYING file.
+
+GO := go
+TEST_TIMEOUT := 30s
+GOTEST_FLAGS :=
+
+DEFAULT_GOPATH := $${GOPATH%%:*}
+GOPATH_BIN := $(DEFAULT_GOPATH)/bin
+GOPATH_PKG := $(DEFAULT_GOPATH)/pkg
+GOLINT := $(GOPATH_BIN)/golint
+GOFOLDERS := find . -type d ! -path "./.git/*"
+
+all: install
+
+install:
+	$(GO) install ./...
+
+check: vet test fmtcheck lint
+
+COVER_PKGS := key test
+COVER_MODE := count
+coverdata:
+	echo 'mode: $(COVER_MODE)' >coverage.out
+	for dir in $(COVER_PKGS); do \
+	  $(GO) test -covermode=$(COVER_MODE) -coverprofile=cov.out-t ./$$dir || exit; \
+	  tail -n +2 cov.out-t >> coverage.out && \
+	  rm cov.out-t; \
+	done;
+
+coverage: coverdata
+	$(GO) tool cover -html=coverage.out
+	rm -f coverage.out
+
+fmtcheck:
+	errors=`gofmt -l .`; if test -n "$$errors"; then echo Check these files for style errors:; echo "$$errors"; exit 1; fi
+	find . -name '*.go' ! -name '*.pb.go' -exec ./check_line_len.awk {} +
+
+vet:
+	$(GO) vet ./...
+
+lint:
+	lint=`$(GOFOLDERS) | xargs -L 1 $(GOLINT) | fgrep -v .pb.go`; if test -n "$$lint"; then echo "$$lint"; exit 1; fi
+# The above is ugly, but unfortunately golint doesn't exit 1 when it finds
+# lint.  See https://github.com/golang/lint/issues/65
+
+test:
+	$(GO) test $(GOTEST_FLAGS) -timeout=$(TEST_TIMEOUT) ./...
+
+docker:
+	docker build -f cmd/occlient/Dockerfile .
+
+clean:
+	rm -rf $(GOPATH_PKG)/*/github.com/aristanetworks/goarista
+	$(GO) clean ./...
+
+.PHONY: all check coverage coverdata docker fmtcheck install lint test vet
diff --git a/vendor/github.com/aristanetworks/goarista/README.md b/vendor/github.com/aristanetworks/goarista/README.md
new file mode 100644
index 000000000..316d711ad
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/README.md
@@ -0,0 +1,62 @@
+# Arista Go library [![Build Status](https://travis-ci.org/aristanetworks/goarista.svg?branch=master)](https://travis-ci.org/aristanetworks/goarista) [![codecov.io](http://codecov.io/github/aristanetworks/goarista/coverage.svg?branch=master)](http://codecov.io/github/aristanetworks/goarista?branch=master) [![GoDoc](https://godoc.org/github.com/aristanetworks/goarista?status.png)](https://godoc.org/github.com/aristanetworks/goarista) [![Go Report Card](https://goreportcard.com/badge/github.com/aristanetworks/goarista)](https://goreportcard.com/report/github.com/aristanetworks/goarista)
+
+## areflect
+
+Helper functions to work with the `reflect` package.  Contains
+`ForceExport()`, which bypasses the check in `reflect.Value` that
+prevents accessing unexported attributes.
+
+## monotime
+
+Provides access to a fast monotonic clock source, to fill in the gap in the
+[Go standard library, which lacks one](https://github.com/golang/go/issues/12914).
+Don't use `time.Now()` in code that needs to time things or otherwise assume
+that time passes at a constant rate, instead use `monotime.Now()`.
+
+## cmd
+
+See the [cmd](cmd) directory.
+
+## dscp
+
+Provides `ListenTCPWithTOS()`, which is a replacement for `net.ListenTCP()`
+that allows specifying the ToS (Type of Service), to specify DSCP / ECN /
+class of service flags to use for incoming connections.
+
+## key
+
+Provides a common type used across various Arista projects, named `key.Key`,
+which is used to work around the fact that Go can't let one
+use a non-hashable type as a key to a `map`, and we sometimes need to use
+a `map[string]interface{}` (or something containing one) as a key to maps.
+As a result, we frequently use `map[key.Key]interface{}` instead of just
+`map[interface{}]interface{}` when we need a generic key-value collection.
+
+## lanz
+A client for [LANZ](https://eos.arista.com/latency-analyzer-lanz-architectures-and-configuration/)
+streaming servers. It connects to a LANZ streaming server,
+listens for notifications, decodes them and sends the LANZ protobuf on the
+provided channel.
+
+## monitor
+
+A library to help expose monitoring metrics on top of the
+[`expvar`](https://golang.org/pkg/expvar/) infrastructure.
+
+## netns
+
+`netns.Do(namespace, cb)` provides a handy mechanism to execute the given
+callback `cb` in the given [network namespace](https://lwn.net/Articles/580893/).
+
+## pathmap
+
+A datastructure for mapping keys of type string slice to values. It
+allows for some fuzzy matching.
+
+## test
+
+This is a [Go](http://golang.org/) library to help in writing unit tests.
+
+## Examples
+
+TBD
diff --git a/vendor/github.com/aristanetworks/goarista/check_line_len.awk b/vendor/github.com/aristanetworks/goarista/check_line_len.awk
new file mode 100755
index 000000000..a9db53550
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/check_line_len.awk
@@ -0,0 +1,25 @@
+#!/usr/bin/awk -f
+# Copyright (C) 2015  Arista Networks, Inc.
+# Use of this source code is governed by the Apache License 2.0
+# that can be found in the COPYING file.
+
+BEGIN {
+  max = 100;
+}
+
+# Expand tabs to 4 spaces.
+{
+  gsub(/\t/, "    ");
+}
+
+length() > max {
+  errors++;
+  print FILENAME ":" FNR ": Line too long (" length() "/" max ")";
+}
+
+END {
+  if (errors >= 125) {
+    errors = 125;
+  }
+  exit errors;
+}
diff --git a/vendor/github.com/aristanetworks/goarista/iptables.sh b/vendor/github.com/aristanetworks/goarista/iptables.sh
new file mode 100755
index 000000000..f118ff493
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/iptables.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+DEFAULT_PORT=6042
+
+set -e
+
+if [ "$#" -lt 1 ]
+then
+   echo "usage: $0 <host> [<port>]"
+   exit 1
+fi
+
+host=$1
+port=$DEFAULT_PORT
+if [ "$#" -gt 1 ]
+then
+   port=$2
+fi
+iptables="bash sudo iptables -A INPUT -p tcp --dport $port -j ACCEPT"
+ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no $host "$iptables"
+echo "opened TCP port $port on $host"
diff --git a/vendor/github.com/aristanetworks/goarista/monotime/issue15006.s b/vendor/github.com/aristanetworks/goarista/monotime/issue15006.s
new file mode 100644
index 000000000..66109f4f3
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/monotime/issue15006.s
@@ -0,0 +1,6 @@
+// Copyright (C) 2016  Arista Networks, Inc.
+// Use of this source code is governed by the Apache License 2.0
+// that can be found in the COPYING file.
+
+// This file is intentionally empty.
+// It's a workaround for https://github.com/golang/go/issues/15006
diff --git a/vendor/github.com/aristanetworks/goarista/monotime/nanotime.go b/vendor/github.com/aristanetworks/goarista/monotime/nanotime.go
new file mode 100644
index 000000000..efc1b92a6
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/monotime/nanotime.go
@@ -0,0 +1,24 @@
+// Copyright (C) 2016  Arista Networks, Inc.
+// Use of this source code is governed by the Apache License 2.0
+// that can be found in the COPYING file.
+
+// Package monotime provides a fast monotonic clock source.
+package monotime
+
+import (
+	_ "unsafe" // required to use //go:linkname
+)
+
+//go:noescape
+//go:linkname nanotime runtime.nanotime
+func nanotime() int64
+
+// Now returns the current time in nanoseconds from a monotonic clock.
+// The time returned is based on some arbitrary platform-specific point in the
+// past.  The time returned is guaranteed to increase monotonically at a
+// constant rate, unlike time.Now() from the Go standard library, which may
+// slow down, speed up, jump forward or backward, due to NTP activity or leap
+// seconds.
+func Now() uint64 {
+	return uint64(nanotime())
+}
diff --git a/vendor/github.com/aristanetworks/goarista/rpmbuild.sh b/vendor/github.com/aristanetworks/goarista/rpmbuild.sh
new file mode 100755
index 000000000..52b691bd9
--- /dev/null
+++ b/vendor/github.com/aristanetworks/goarista/rpmbuild.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+
+# Copyright (C) 2016  Arista Networks, Inc.
+# Use of this source code is governed by the Apache License 2.0
+# that can be found in the COPYING file.
+
+if [ "$#" -lt 1 ]
+then
+   echo "usage: $0 <binary>"
+   exit 1
+fi
+binary=$1
+
+if [ -z "$GOPATH" ] || [ -z "$GOOS" ] || [ -z "$GOARCH" ]
+then
+    echo "Please set \$GOPATH, \$GOOS and \$GOARCH"
+    exit 1
+fi
+
+set -e
+
+version=$(git rev-parse --short=7 HEAD)
+pwd=$(pwd)
+cd $GOPATH/bin
+if [ -d $GOOS_$GOARCH ]
+then
+   cd $GOOS_GOARCH
+fi
+os=$GOOS
+arch=$GOARCH
+if [ "$arch" == "386" ]
+then
+   arch="i686"
+fi
+cmd="fpm -n $binary -v $version -s dir -t rpm --rpm-os $os -a $arch --epoch 0 --prefix /usr/bin $binary"
+echo $cmd
+$cmd
+mv $binary-$version-1.$arch.rpm $pwd