Move Linux client & common packages into a public repo.

AUTHORS

@@ -0,0 +1,17 @@
+# This is the official list of Tailscale
+# authors for copyright purposes.
+#
+# Names should be added to this file as one of
+#     Organization's name
+#     Individual's name <submission email address>
+#     Individual's name <submission email address> <email2> <emailN>
+#
+# Please keep the list sorted.
+#
+# You do not need to add entries to this list, and we don't actively
+# populate this list. If you do want to be acknowledged explicitly as
+# a copyright holder, though, then please send a PR referencing your
+# earlier contributions and clarifying whether it's you or your
+# company that owns the rights to your contribution.
+
+Tailscale Inc.

LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2020 Tailscale & AUTHORS. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Tailscale Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

PATENTS

@@ -0,0 +1,24 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Tailscale Inc. as part of the Tailscale project.
+
+Tailscale Inc. hereby grants to You a perpetual, worldwide,
+non-exclusive, no-charge, royalty-free, irrevocable (except as stated
+in this section) patent license to make, have made, use, offer to
+sell, sell, import, transfer and otherwise run, modify and propagate
+the contents of this implementation of Tailscale, where such license
+applies only to those patent claims, both currently owned or
+controlled by Tailscale Inc. and acquired in the future, licensable
+by Tailscale Inc. that are necessarily infringed by this
+implementation of Tailscale.  This grant does not include claims that
+would be infringed only as a consequence of further modification of
+this implementation.  If you or your agent or exclusive licensee
+institute or order or agree to the institution of patent litigation
+against any entity (including a cross-claim or counterclaim in a
+lawsuit) alleging that this implementation of Tailscale or any code
+incorporated within this implementation of Tailscale constitutes
+direct or contributory patent infringement, or inducement of patent
+infringement, then any patent rights granted to you under this License
+for this implementation of Tailscale shall terminate as of the date
+such litigation is filed.

atomicfile/atomicfile.go

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+// Copyright 2019 Tailscale & 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 atomicfile contains code related to writing to filesystems
+// atomically.
+//
+// This package should be considered internal; its API is not stable.
+package atomicfile // import "tailscale.com/atomicfile"
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+)
+
+// WriteFile writes data to filename+some suffix, then renames it
+// into filename.
+func WriteFile(filename string, data []byte, perm os.FileMode) error {
+	tmpname := filename + ".new.tmp"
+	if err := ioutil.WriteFile(tmpname, data, perm); err != nil {
+		return fmt.Errorf("%#v: %v", tmpname, err)
+	}
+	if err := os.Rename(tmpname, filename); err != nil {
+		return fmt.Errorf("%#v->%#v: %v", tmpname, filename, err)
+	}
+	return nil
+}

cmd/relaynode/.gitignore

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+/*.tar.gz
+/*.deb
+/*.rpm
+/*.spec
+/pkgver
+debian/changelog
+debian/debhelper-build-stamp
+debian/files
+debian/*.log
+debian/*.substvars
+debian/*.debhelper
+debian/tailscale-relay
+/tailscale-relay/
+/tailscale-relay-*

cmd/relaynode/acl.json

@@ -0,0 +1,63 @@
+{
+  // Declare static groups of users beyond those in the identity service
+  "Groups": {
+    "group:eng": ["u1@example.com", "u2@example.com"]
+  },
+
+  // Declare convenient hostname aliases to use in place of IP addresses
+  "Hosts": {
+    "h222": "100.2.2.2"
+  },
+
+  // Access control list
+  "ACLs": [
+    {
+        "Action": "accept",
+        // Match any of several users
+        "Users": ["a@example.com", "b@example.com"],
+        // Match any port on h222, and port 22 of 10.1.2.3
+        "Ports": ["h222:*", "10.1.2.3:22"]
+    },
+    {
+        "Action": "accept",
+        // Match any user at all
+        "Users": ["*"],
+        // Match port 80 on one machine, ports 53 and 5353 on a second one,
+        // and ports 8000 through 8080 (a port range) on a third one.
+        "Ports": ["h222:80", "10.8.8.8:53,5353", "10.2.3.4:8000-8080"]
+    },
+    {
+        "Action": "accept",
+        // Match all users in the "Admin" role (network administrators)
+        "Users": ["role:Admin", "group:eng"],
+        // Allow access to port 22 on all servers
+        "Ports": ["*:22"]
+    },
+    {
+        "Action": "accept",
+        "Users": ["role:User"],
+        // Match only windows and linux workstations (not implemented yet)
+        "OS": ["windows", "linux"],
+        // Only desktop machines are allowed to access this server
+        "Ports": ["10.1.1.1:443"]
+    },
+    {
+        "Action": "accept",
+        "Users": ["*"],
+        // Match machines which have never been authorized, or which expired.
+        // (not implemented yet)
+        "MachineAuth": ["unauthorized", "expired"],
+        // Logged-in users on unauthorized machines can access the email server.
+        // Open the TLS ports for SMTP, IMAP, and HTTP.
+        "Ports": ["10.1.2.3:465", "10.1.2.3:993", "10.1.2.3:443"]
+    },
+
+    // Match absolutely everything. Comment out this section if you want
+    // the above ACLs to apply.
+    { "Action": "accept", "Users": ["*"], "Ports": ["*:*"] },
+
+    // Leave this line here so that every rule can end in a comma.
+    // It has no effect since it has no matching rules.
+    {"Action": "accept"}
+  ]
+}

cmd/relaynode/clean.do

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+rm -f debian/changelog *~ debian/*~

cmd/relaynode/clean.od

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+exec >&2
+read -r package <package
+rm -f *~ .*~ \
+	debian/*~ debian/changelog debian/debhelper-build-stamp \
+	debian/*.log debian/files debian/*.substvars debian/*.debhelper \
+	*.tar.gz *.deb *.rpm *.spec pkgver relaynode *.exe
+[ -n "$package" ] && rm -rf "debian/$package"
+for d in */.stamp; do
+	if [ -e "$d" ]; then
+		dir=$(dirname "$d")
+		rm -rf "$dir"
+	fi
+done

cmd/relaynode/deb.od

@@ -0,0 +1,10 @@
+exec >&2
+dir=${1%/*}
+redo-ifchange "$S/$dir/package" "$S/oss/version/short.txt"
+read -r package <"$S/$dir/package"
+read -r version <"$S/oss/version/short.txt"
+arch=$(dpkg --print-architecture)
+
+redo-ifchange "$dir/${package}_$arch.deb"
+rm -f "$dir/${package}"_*_"$arch.deb"
+ln -sf "${package}_$arch.deb" "$dir/${package}_${version}_$arch.deb"

cmd/relaynode/debian/README.Debian

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+Tailscale IPN relay daemon.

cmd/relaynode/debian/changelog.do

@@ -0,0 +1,5 @@
+redo-ifchange ../../../version/short.txt gen-changelog
+(
+	cd ..
+	debian/gen-changelog
+) >$3

cmd/relaynode/debian/compat

@@ -0,0 +1 @@
+9

cmd/relaynode/debian/control

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+Source: tailscale-relay
+Section: net
+Priority: extra
+Maintainer: Avery Pennarun <apenwarr@tailscale.com>
+Build-Depends: debhelper (>= 10.2.5), dh-systemd (>= 1.5)
+Standards-Version: 3.9.2
+Homepage: https://tailscale.com/
+Vcs-Git: https://github.com/tailscale/tailscale
+Vcs-Browser: https://github.com/tailscale/tailscale
+
+Package: tailscale-relay
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: Traffic relay node for Tailscale IPN

cmd/relaynode/debian/copyright

@@ -0,0 +1,11 @@
+Format: http://svn.debian.org/wsvn/dep/web/deps/dep5.mdwn?op=file&rev=173
+Upstream-Name: tailscale-relay
+Upstream-Contact: Avery Pennarun <apenwarr@tailscale.com>
+Source: https://github.com/tailscale/tailscale/
+
+Files: *
+Copyright: © 2019 Tailscale Inc. <info@tailscale.com>
+License: Proprietary
+ *
+ * Copyright 2019 Tailscale Inc. All rights reserved.
+ *

cmd/relaynode/debian/gen-changelog

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+#!/bin/sh
+read junk pkgname <debian/control
+read shortver <../../version/short.txt
+git log --pretty='format:'"$pkgname"' (SHA:%H) unstable; urgency=low
+
+  * %s
+  
+ -- %aN <%aE>  %aD
+' . |
+python -Sc '
+import os, re, subprocess, sys
+
+first = True
+def Describe(g):
+  global first
+  if first:
+    s = sys.argv[1]
+    first = False
+  else:
+    sha = g.group(1)
+    s = subprocess.check_output(["git", "describe", "--", sha]).strip().decode("utf-8")
+  return re.sub(r"^\D*", "", s)
+
+print(re.sub(r"SHA:([0-9a-f]+)", Describe, sys.stdin.read()))
+' "$shortver"

cmd/relaynode/debian/install

@@ -0,0 +1,4 @@
+relaynode			/usr/sbin
+tailscale-login			/usr/sbin
+taillogin			/usr/sbin
+acl.json			/etc/tailscale

cmd/relaynode/debian/postinst

@@ -0,0 +1,8 @@
+#DEBHELPER#
+
+f=/var/lib/tailscale/relay.conf
+if ! [ -e "$f" ]; then
+	echo
+	echo "Note: Run tailscale-login to configure $f." >&2
+	echo
+fi

cmd/relaynode/debian/rules

@@ -0,0 +1,10 @@
+#!/usr/bin/make -f
+DESTDIR=debian/tailscale-relay
+
+override_dh_auto_test:
+override_dh_auto_install:
+	mkdir -p "${DESTDIR}/etc/default"
+	cp tailscale-relay.defaults "${DESTDIR}/etc/default/tailscale-relay"
+
+%:
+	dh $@ --with=systemd

cmd/relaynode/debian/tailscale-relay.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=Traffic relay node for Tailscale IPN
+After=network.target
+ConditionPathExists=/var/lib/tailscale/relay.conf
+
+[Service]
+EnvironmentFile=/etc/default/tailscale-relay
+ExecStart=/usr/sbin/relaynode --config=/var/lib/tailscale/relay.conf --tun=wg0 $PORT $ACL_FILE $FLAGS
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target

cmd/relaynode/default.deb.od

@@ -0,0 +1,20 @@
+exec >&2
+dir=${1%/*}
+redo-ifchange "$S/oss/version/short.txt" "$S/$dir/package" "$dir/debtmp.dir"
+read -r package <"$S/$dir/package"
+read -r version <"$S/oss/version/short.txt"
+arch=$(dpkg --print-architecture)
+
+(
+	cd "$S/$dir"
+	git ls-files debian | xargs redo-ifchange debian/changelog
+)
+cp -a "$S/$dir/debian" "$dir/debtmp/"
+rm -f "$dir/debtmp/debian/$package.debhelper.log"
+(
+	cd "$dir/debtmp" &&
+	debian/rules build &&
+	fakeroot debian/rules binary
+)
+
+mv "$dir/${package}_${version}_${arch}.deb" "$3"

cmd/relaynode/default.dir.od

@@ -0,0 +1,21 @@
+# Generate a directory tree suitable for forming a tarball of
+# this package.
+exec >&2
+dir=${1%/*}
+outdir=$PWD/${1%.dir}
+rm -rf "$outdir"
+mkdir "$outdir"
+touch $outdir/.stamp
+sfiles="
+	tailscale-login
+	acl.json
+	debian/*.service
+	*.defaults
+"
+ofiles="
+	relaynode
+	../taillogin/taillogin
+"
+redo-ifchange "$outdir/.stamp"
+(cd "$S/$dir" && redo-ifchange $sfiles && cp $sfiles "$outdir/")
+(cd "$dir" && redo-ifchange $ofiles && cp $ofiles "$outdir/")

cmd/relaynode/default.rpm.od

@@ -0,0 +1,14 @@
+exec >&2
+dir=${1%/*}
+pkg=${1##*/}
+pkg=${pkg%.rpm}
+redo-ifchange "$S/oss/version/short.txt" "$dir/$pkg.tar.gz" "$dir/$pkg.spec"
+read -r pkgver junk <"$S/oss/version/short.txt"
+
+machine=$(uname -m)
+rpmbase=$HOME/rpmbuild
+
+mkdir -p "$rpmbase/SOURCES/"
+cp "$dir/$pkg.tar.gz" "$rpmbase/SOURCES/"
+rpmbuild -bb "$dir/$pkg.spec"
+mv "$rpmbase/RPMS/$machine/$pkg-$pkgver.$machine.rpm" $3

cmd/relaynode/default.spec.od

@@ -0,0 +1,7 @@
+redo-ifchange "$S/$1.in" "$S/oss/version/short.txt"
+read -r pkgver junk <"$S/oss/version/short.txt"
+basever=${pkgver%-*}
+subver=${pkgver#*-}
+sed -e "s/Version: 0.00$/Version: $basever/" \
+    -e "s/Release: 0$/Release: $subver/" \
+	<"$S/$1.in" >"$3"

cmd/relaynode/default.tar.gz.od

@@ -0,0 +1,8 @@
+exec >&2
+xdir=${1%.tar.gz}
+base=${xdir##*/}
+updir=${xdir%/*}
+redo-ifchange "$xdir.dir"
+OUT="$PWD/$3"
+
+cd "$updir" && tar -czvf "$OUT" --exclude "$base/.stamp" "$base"

cmd/relaynode/dist.od

@@ -0,0 +1,15 @@
+# Build packages for customer distribution.
+dir=${1%/*}
+cd "$dir"
+targets="tarball"
+if which dh_clean fakeroot dpkg >/dev/null; then
+	targets="$targets deb"
+else
+	echo "Skipping debian packages: debhelper and/or dpkg build tools missing." >&2
+fi
+if which rpm >/dev/null; then
+	targets="$targets rpm"
+else
+	echo "Skipping rpm packages: rpm build tools missing." >&2
+fi
+redo-ifchange $targets

cmd/relaynode/docker/.gitignore

@@ -0,0 +1 @@
+/relaynode