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Merge branch 'main' into topic/docker-release

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ohdearaugustin 2021-09-12 18:18:34 +02:00 committed by GitHub
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27 changed files with 1648 additions and 395 deletions
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41
.github/workflows/lint.yml vendored Normal file
View file

@ -0,0 +1,41 @@
name: CI
on: [push, pull_request]
jobs:
# The "build" workflow
lint:
# The type of runner that the job will run on
runs-on: ubuntu-latest
# Steps represent a sequence of tasks that will be executed as part of the job
steps:
# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
- uses: actions/checkout@v2
# Install and run golangci-lint as a separate step, it's much faster this
# way because this action has caching. It'll get run again in `make lint`
# below, but it's still much faster in the end than installing
# golangci-lint manually in the `Run lint` step.
- uses: golangci/golangci-lint-action@v2
with:
args: --timeout 4m
# Setup Go
- name: Setup Go
uses: actions/setup-go@v2
with:
go-version: "1.16.3" # The Go version to download (if necessary) and use.
# Install all the dependencies
- name: Install dependencies
run: |
go version
go install golang.org/x/lint/golint@latest
sudo apt update
sudo apt install -y make
- name: Run lint
with:
args: --timeout 4m
run: make lint

23
.github/workflows/test-integration.yml vendored Normal file
View file

@ -0,0 +1,23 @@
name: CI
on: [pull_request]
jobs:
# The "build" workflow
integration-test:
# The type of runner that the job will run on
runs-on: ubuntu-latest
# Steps represent a sequence of tasks that will be executed as part of the job
steps:
# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
- uses: actions/checkout@v2
# Setup Go
- name: Setup Go
uses: actions/setup-go@v2
with:
go-version: "1.16.3"
- name: Run Integration tests
run: go test -tags integration -timeout 30m

14
.github/workflows/test.yml vendored
View file

@ -13,33 +13,21 @@ jobs:
# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
- uses: actions/checkout@v2
# Install and run golangci-lint as a separate step, it's much faster this
# way because this action has caching. It'll get run again in `make lint`
# below, but it's still much faster in the end than installing
# golangci-lint manually in the `Run lint` step.
- uses: golangci/golangci-lint-action@v2
with:
args: --timeout 2m
# Setup Go
- name: Setup Go
uses: actions/setup-go@v2
with:
go-version: '1.16.3' # The Go version to download (if necessary) and use.
go-version: "1.16.3" # The Go version to download (if necessary) and use.
# Install all the dependencies
- name: Install dependencies
run: |
go version
go install golang.org/x/lint/golint@latest
sudo apt update
sudo apt install -y make
- name: Run tests
run: make test
- name: Run lint
run: make lint
- name: Run build
run: make

2
.gitignore vendored
View file

@ -22,3 +22,5 @@ config.json
# Exclude Jetbrains Editors
.idea
test_output/

2
Dockerfile
View file

@ -10,7 +10,7 @@ COPY . /go/src/headscale
RUN go install -a -ldflags="-extldflags=-static" -tags netgo,sqlite_omit_load_extension ./cmd/headscale
RUN test -e /go/bin/headscale
FROM ubuntu:latest
FROM ubuntu:20.04
COPY --from=build /go/bin/headscale /usr/local/bin/headscale
ENV TZ UTC

2
Makefile
View file

@ -2,7 +2,7 @@
version = $(shell ./scripts/version-at-commit.sh)
build:
go build -ldflags "-s -w -X main.version=$(version)" cmd/headscale/headscale.go
go build -ldflags "-s -w -X github.com/juanfont/headscale/cmd/headscale/cli.version=$(version)" cmd/headscale/headscale.go
dev: lint test build

7
README.md
View file

@ -25,14 +25,13 @@ Headscale implements this coordination server.
- [X] JSON-formatted output
- [X] ACLs
- [X] Support for alternative IP ranges in the tailnets (default Tailscale's 100.64.0.0/10)
- [ ] Share nodes between ~~users~~ namespaces
- [ ] DNS
- [X] DNS (passing DNS servers to nodes)
- [X] Share nodes between ~~users~~ namespaces
- [ ] MagicDNS / Smart DNS
## Roadmap 🤷
We are now focusing on adding integration tests with the official clients.
Suggestions/PRs welcomed!

208
api.go
View file

@ -13,9 +13,7 @@ import (
"github.com/gin-gonic/gin"
"github.com/klauspost/compress/zstd"
"gorm.io/datatypes"
"gorm.io/gorm"
"inet.af/netaddr"
"tailscale.com/tailcfg"
"tailscale.com/types/wgkey"
)
@ -35,8 +33,6 @@ func (h *Headscale) RegisterWebAPI(c *gin.Context) {
return
}
// spew.Dump(c.Params)
c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(fmt.Sprintf(`
<html>
<body>
@ -82,6 +78,7 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {
return
}
now := time.Now().UTC()
var m Machine
if result := h.db.Preload("Namespace").First(&m, "machine_key = ?", mKey.HexString()); errors.Is(result.Error, gorm.ErrRecordNotFound) {
log.Info().Str("machine", req.Hostinfo.Hostname).Msg("New machine")
@ -90,6 +87,7 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {
MachineKey: mKey.HexString(),
Name: req.Hostinfo.Hostname,
NodeKey: wgkey.Key(req.NodeKey).HexString(),
LastSuccessfulUpdate: &now,
}
if err := h.db.Create(&m).Error; err != nil {
log.Error().
@ -215,202 +213,12 @@ func (h *Headscale) RegistrationHandler(c *gin.Context) {
c.Data(200, "application/json; charset=utf-8", respBody)
}
// PollNetMapHandler takes care of /machine/:id/map
//
// This is the busiest endpoint, as it keeps the HTTP long poll that updates
// the clients when something in the network changes.
//
// The clients POST stuff like HostInfo and their Endpoints here, but
// only after their first request (marked with the ReadOnly field).
//
// At this moment the updates are sent in a quite horrendous way, but they kinda work.
func (h *Headscale) PollNetMapHandler(c *gin.Context) {
log.Trace().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Msg("PollNetMapHandler called")
body, _ := io.ReadAll(c.Request.Body)
mKeyStr := c.Param("id")
mKey, err := wgkey.ParseHex(mKeyStr)
if err != nil {
log.Error().
Str("handler", "PollNetMap").
Err(err).
Msg("Cannot parse client key")
c.String(http.StatusBadRequest, "")
return
}
req := tailcfg.MapRequest{}
err = decode(body, &req, &mKey, h.privateKey)
if err != nil {
log.Error().
Str("handler", "PollNetMap").
Err(err).
Msg("Cannot decode message")
c.String(http.StatusBadRequest, "")
return
}
var m Machine
if result := h.db.Preload("Namespace").First(&m, "machine_key = ?", mKey.HexString()); errors.Is(result.Error, gorm.ErrRecordNotFound) {
log.Warn().
Str("handler", "PollNetMap").
Msgf("Ignoring request, cannot find machine with key %s", mKey.HexString())
c.String(http.StatusUnauthorized, "")
return
}
log.Trace().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Msg("Found machine in database")
hostinfo, _ := json.Marshal(req.Hostinfo)
m.Name = req.Hostinfo.Hostname
m.HostInfo = datatypes.JSON(hostinfo)
m.DiscoKey = wgkey.Key(req.DiscoKey).HexString()
now := time.Now().UTC()
// From Tailscale client:
//
// ReadOnly is whether the client just wants to fetch the MapResponse,
// without updating their Endpoints. The Endpoints field will be ignored and
// LastSeen will not be updated and peers will not be notified of changes.
//
// The intended use is for clients to discover the DERP map at start-up
// before their first real endpoint update.
if !req.ReadOnly {
endpoints, _ := json.Marshal(req.Endpoints)
m.Endpoints = datatypes.JSON(endpoints)
m.LastSeen = &now
}
h.db.Save(&m)
data, err := h.getMapResponse(mKey, req, m)
if err != nil {
log.Error().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Err(err).
Msg("Failed to get Map response")
c.String(http.StatusInternalServerError, ":(")
return
}
// We update our peers if the client is not sending ReadOnly in the MapRequest
// so we don't distribute its initial request (it comes with
// empty endpoints to peers)
// Details on the protocol can be found in https://github.com/tailscale/tailscale/blob/main/tailcfg/tailcfg.go#L696
log.Debug().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Bool("readOnly", req.ReadOnly).
Bool("omitPeers", req.OmitPeers).
Bool("stream", req.Stream).
Msg("Client map request processed")
if req.ReadOnly {
log.Info().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Client is starting up. Asking for DERP map")
c.Data(200, "application/json; charset=utf-8", *data)
return
}
if req.OmitPeers && !req.Stream {
log.Info().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Client sent endpoint update and is ok with a response without peer list")
c.Data(200, "application/json; charset=utf-8", *data)
return
} else if req.OmitPeers && req.Stream {
log.Warn().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Ignoring request, don't know how to handle it")
c.String(http.StatusBadRequest, "")
return
}
// Only create update channel if it has not been created
var update chan []byte
log.Trace().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Msg("Creating or loading update channel")
if result, ok := h.clientsPolling.LoadOrStore(m.ID, make(chan []byte, 1)); ok {
update = result.(chan []byte)
}
pollData := make(chan []byte, 1)
defer close(pollData)
cancelKeepAlive := make(chan []byte, 1)
defer close(cancelKeepAlive)
log.Info().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Client is ready to access the tailnet")
log.Info().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Sending initial map")
pollData <- *data
log.Info().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Notifying peers")
// TODO: Why does this block?
go h.notifyChangesToPeers(&m)
h.PollNetMapStream(c, m, req, mKey, pollData, update, cancelKeepAlive)
log.Trace().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Msg("Finished stream, closing PollNetMap session")
}
func (h *Headscale) keepAlive(cancel chan []byte, pollData chan []byte, mKey wgkey.Key, req tailcfg.MapRequest, m Machine) {
for {
select {
case <-cancel:
return
default:
data, err := h.getMapKeepAliveResponse(mKey, req, m)
if err != nil {
log.Error().
Str("func", "keepAlive").
Err(err).
Msg("Error generating the keep alive msg")
return
}
log.Debug().
Str("func", "keepAlive").
Str("machine", m.Name).
Msg("Sending keepalive")
pollData <- *data
time.Sleep(60 * time.Second)
}
}
}
func (h *Headscale) getMapResponse(mKey wgkey.Key, req tailcfg.MapRequest, m Machine) (*[]byte, error) {
log.Trace().
Str("func", "getMapResponse").
Str("machine", req.Hostinfo.Hostname).
Msg("Creating Map response")
node, err := m.toNode()
node, err := m.toNode(true)
if err != nil {
log.Error().
Str("func", "getMapResponse").
@ -437,7 +245,12 @@ func (h *Headscale) getMapResponse(mKey wgkey.Key, req tailcfg.MapRequest, m Mac
KeepAlive: false,
Node: node,
Peers: *peers,
DNS: []netaddr.IP{},
//TODO(kradalby): As per tailscale docs, if DNSConfig is nil,
// it means its not updated, maybe we can have some logic
// to check and only pass updates when its updates.
// This is probably more relevant if we try to implement
// "MagicDNS"
DNSConfig: h.cfg.DNSConfig,
SearchPaths: []string{},
Domain: "headscale.net",
PacketFilter: *h.aclRules,
@ -465,7 +278,6 @@ func (h *Headscale) getMapResponse(mKey wgkey.Key, req tailcfg.MapRequest, m Mac
return nil, err
}
}
// spew.Dump(resp)
// declare the incoming size on the first 4 bytes
data := make([]byte, 4)
binary.LittleEndian.PutUint32(data, uint32(len(respBody)))
@ -542,7 +354,7 @@ func (h *Headscale) handleAuthKey(c *gin.Context, db *gorm.DB, idKey wgkey.Key,
Str("func", "handleAuthKey").
Str("machine", m.Name).
Str("ip", ip.String()).
Msgf("Assining %s to %s", ip, m.Name)
Msgf("Assigning %s to %s", ip, m.Name)
m.AuthKeyID = uint(pak.ID)
m.IPAddress = ip.String()

39
app.go
View file

@ -43,6 +43,8 @@ type Config struct {
TLSCertPath string
TLSKeyPath string
DNSConfig *tailcfg.DNSConfig
}
// Headscale represents the base app of the service
@ -58,7 +60,10 @@ type Headscale struct {
aclPolicy *ACLPolicy
aclRules *[]tailcfg.FilterRule
clientsPolling sync.Map
clientsUpdateChannels sync.Map
clientsUpdateChannelMutex sync.Mutex
lastStateChange sync.Map
}
// NewHeadscale returns the Headscale app
@ -165,9 +170,18 @@ func (h *Headscale) Serve() error {
r.POST("/machine/:id", h.RegistrationHandler)
var err error
timeout := 30 * time.Second
go h.watchForKVUpdates(5000)
go h.expireEphemeralNodes(5000)
s := &http.Server{
Addr: h.cfg.Addr,
Handler: r,
ReadTimeout: timeout,
WriteTimeout: timeout,
}
if h.cfg.TLSLetsEncryptHostname != "" {
if !strings.HasPrefix(h.cfg.ServerURL, "https://") {
log.Warn().Msg("Listening with TLS but ServerURL does not start with https://")
@ -182,6 +196,8 @@ func (h *Headscale) Serve() error {
Addr: h.cfg.Addr,
TLSConfig: m.TLSConfig(),
Handler: r,
ReadTimeout: timeout,
WriteTimeout: timeout,
}
if h.cfg.TLSLetsEncryptChallengeType == "TLS-ALPN-01" {
// Configuration via autocert with TLS-ALPN-01 (https://tools.ietf.org/html/rfc8737)
@ -206,12 +222,29 @@ func (h *Headscale) Serve() error {
if !strings.HasPrefix(h.cfg.ServerURL, "http://") {
log.Warn().Msg("Listening without TLS but ServerURL does not start with http://")
}
err = r.Run(h.cfg.Addr)
err = s.ListenAndServe()
} else {
if !strings.HasPrefix(h.cfg.ServerURL, "https://") {
log.Warn().Msg("Listening with TLS but ServerURL does not start with https://")
}
err = r.RunTLS(h.cfg.Addr, h.cfg.TLSCertPath, h.cfg.TLSKeyPath)
err = s.ListenAndServeTLS(h.cfg.TLSCertPath, h.cfg.TLSKeyPath)
}
return err
}
func (h *Headscale) setLastStateChangeToNow(namespace string) {
now := time.Now().UTC()
h.lastStateChange.Store(namespace, now)
}
func (h *Headscale) getLastStateChange(namespace string) time.Time {
if wrapped, ok := h.lastStateChange.Load(namespace); ok {
lastChange, _ := wrapped.(time.Time)
return lastChange
}
now := time.Now().UTC()
h.lastStateChange.Store(namespace, now)
return now
}

103
cmd/headscale/cli/nodes.go
View file

@ -25,6 +25,7 @@ func init() {
nodeCmd.AddCommand(listNodesCmd)
nodeCmd.AddCommand(registerNodeCmd)
nodeCmd.AddCommand(deleteNodeCmd)
nodeCmd.AddCommand(shareMachineCmd)
}
var nodeCmd = &cobra.Command{
@ -79,9 +80,26 @@ var listNodesCmd = &cobra.Command{
if err != nil {
log.Fatalf("Error initializing: %s", err)
}
namespace, err := h.GetNamespace(n)
if err != nil {
log.Fatalf("Error fetching namespace: %s", err)
}
machines, err := h.ListMachinesInNamespace(n)
if err != nil {
log.Fatalf("Error fetching machines: %s", err)
}
sharedMachines, err := h.ListSharedMachinesInNamespace(n)
if err != nil {
log.Fatalf("Error fetching shared machines: %s", err)
}
allMachines := append(*machines, *sharedMachines...)
if strings.HasPrefix(o, "json") {
JsonOutput(machines, err, o)
JsonOutput(allMachines, err, o)
return
}
@ -89,7 +107,7 @@ var listNodesCmd = &cobra.Command{
log.Fatalf("Error getting nodes: %s", err)
}
d, err := nodesToPtables(*machines)
d, err := nodesToPtables(*namespace, allMachines)
if err != nil {
log.Fatalf("Error converting to table: %s", err)
}
@ -145,31 +163,94 @@ var deleteNodeCmd = &cobra.Command{
},
}
func nodesToPtables(m []headscale.Machine) (pterm.TableData, error) {
d := pterm.TableData{{"ID", "Name", "NodeKey", "IP address", "Ephemeral", "Last seen", "Online"}}
var shareMachineCmd = &cobra.Command{
Use: "share ID namespace",
Short: "Shares a node from the current namespace to the specified one",
Args: func(cmd *cobra.Command, args []string) error {
if len(args) < 2 {
return fmt.Errorf("missing parameters")
}
return nil
},
Run: func(cmd *cobra.Command, args []string) {
namespace, err := cmd.Flags().GetString("namespace")
if err != nil {
log.Fatalf("Error getting namespace: %s", err)
}
output, _ := cmd.Flags().GetString("output")
for _, m := range m {
h, err := getHeadscaleApp()
if err != nil {
log.Fatalf("Error initializing: %s", err)
}
_, err = h.GetNamespace(namespace)
if err != nil {
log.Fatalf("Error fetching origin namespace: %s", err)
}
destinationNamespace, err := h.GetNamespace(args[1])
if err != nil {
log.Fatalf("Error fetching destination namespace: %s", err)
}
id, err := strconv.Atoi(args[0])
if err != nil {
log.Fatalf("Error converting ID to integer: %s", err)
}
machine, err := h.GetMachineByID(uint64(id))
if err != nil {
log.Fatalf("Error getting node: %s", err)
}
err = h.AddSharedMachineToNamespace(machine, destinationNamespace)
if strings.HasPrefix(output, "json") {
JsonOutput(map[string]string{"Result": "Node shared"}, err, output)
return
}
if err != nil {
fmt.Printf("Error sharing node: %s\n", err)
return
}
fmt.Println("Node shared!")
},
}
func nodesToPtables(currentNamespace headscale.Namespace, machines []headscale.Machine) (pterm.TableData, error) {
d := pterm.TableData{{"ID", "Name", "NodeKey", "Namespace", "IP address", "Ephemeral", "Last seen", "Online"}}
for _, machine := range machines {
var ephemeral bool
if m.AuthKey != nil && m.AuthKey.Ephemeral {
if machine.AuthKey != nil && machine.AuthKey.Ephemeral {
ephemeral = true
}
var lastSeen time.Time
if m.LastSeen != nil {
lastSeen = *m.LastSeen
var lastSeenTime string
if machine.LastSeen != nil {
lastSeen = *machine.LastSeen
lastSeenTime = lastSeen.Format("2006-01-02 15:04:05")
}
nKey, err := wgkey.ParseHex(m.NodeKey)
nKey, err := wgkey.ParseHex(machine.NodeKey)
if err != nil {
return nil, err
}
nodeKey := tailcfg.NodeKey(nKey)
var online string
if m.LastSeen.After(time.Now().Add(-5 * time.Minute)) { // TODO: Find a better way to reliably show if online
if lastSeen.After(time.Now().Add(-5 * time.Minute)) { // TODO: Find a better way to reliably show if online
online = pterm.LightGreen("true")
} else {
online = pterm.LightRed("false")
}
d = append(d, []string{strconv.FormatUint(m.ID, 10), m.Name, nodeKey.ShortString(), m.IPAddress, strconv.FormatBool(ephemeral), lastSeen.Format("2006-01-02 15:04:05"), online})
var namespace string
if currentNamespace.ID == machine.NamespaceID {
namespace = pterm.LightMagenta(machine.Namespace.Name)
} else {
namespace = pterm.LightYellow(machine.Namespace.Name)
}
d = append(d, []string{strconv.FormatUint(machine.ID, 10), machine.Name, nodeKey.ShortString(), namespace, machine.IPAddress, strconv.FormatBool(ephemeral), lastSeenTime, online})
}
return d, nil
}

72
cmd/headscale/cli/routes.go
View file

@ -5,6 +5,7 @@ import (
"log"
"strings"
"github.com/pterm/pterm"
"github.com/spf13/cobra"
)
@ -15,6 +16,9 @@ func init() {
if err != nil {
log.Fatalf(err.Error())
}
enableRouteCmd.Flags().BoolP("all", "a", false, "Enable all routes advertised by the node")
routesCmd.AddCommand(listRoutesCmd)
routesCmd.AddCommand(enableRouteCmd)
}
@ -44,19 +48,25 @@ var listRoutesCmd = &cobra.Command{
if err != nil {
log.Fatalf("Error initializing: %s", err)
}
routes, err := h.GetNodeRoutes(n, args[0])
if strings.HasPrefix(o, "json") {
JsonOutput(routes, err, o)
return
}
availableRoutes, err := h.GetAdvertisedNodeRoutes(n, args[0])
if err != nil {
fmt.Println(err)
return
}
fmt.Println(routes)
if strings.HasPrefix(o, "json") {
// TODO: Add enable/disabled information to this interface
JsonOutput(availableRoutes, err, o)
return
}
d := h.RoutesToPtables(n, args[0], *availableRoutes)
err = pterm.DefaultTable.WithHasHeader().WithData(d).Render()
if err != nil {
log.Fatal(err)
}
},
}
@ -64,25 +74,66 @@ var enableRouteCmd = &cobra.Command{
Use: "enable node-name route",
Short: "Allows exposing a route declared by this node to the rest of the nodes",
Args: func(cmd *cobra.Command, args []string) error {
all, err := cmd.Flags().GetBool("all")
if err != nil {
log.Fatalf("Error getting namespace: %s", err)
}
if all {
if len(args) < 1 {
return fmt.Errorf("Missing parameters")
}
return nil
} else {
if len(args) < 2 {
return fmt.Errorf("Missing parameters")
}
return nil
}
},
Run: func(cmd *cobra.Command, args []string) {
n, err := cmd.Flags().GetString("namespace")
if err != nil {
log.Fatalf("Error getting namespace: %s", err)
}
o, _ := cmd.Flags().GetString("output")
all, err := cmd.Flags().GetBool("all")
if err != nil {
log.Fatalf("Error getting namespace: %s", err)
}
h, err := getHeadscaleApp()
if err != nil {
log.Fatalf("Error initializing: %s", err)
}
route, err := h.EnableNodeRoute(n, args[0], args[1])
if all {
availableRoutes, err := h.GetAdvertisedNodeRoutes(n, args[0])
if err != nil {
fmt.Println(err)
return
}
for _, availableRoute := range *availableRoutes {
err = h.EnableNodeRoute(n, args[0], availableRoute.String())
if err != nil {
fmt.Println(err)
return
}
if strings.HasPrefix(o, "json") {
JsonOutput(route, err, o)
JsonOutput(availableRoute, err, o)
} else {
fmt.Printf("Enabled route %s\n", availableRoute)
}
}
} else {
err = h.EnableNodeRoute(n, args[0], args[1])
if strings.HasPrefix(o, "json") {
JsonOutput(args[1], err, o)
return
}
@ -90,6 +141,7 @@ var enableRouteCmd = &cobra.Command{
fmt.Println(err)
return
}
fmt.Printf("Enabled route %s\n", route)
fmt.Printf("Enabled route %s\n", args[1])
}
},
}

45
cmd/headscale/cli/utils.go
View file

@ -39,7 +39,9 @@ func LoadConfig(path string) error {
viper.SetDefault("ip_prefix", "100.64.0.0/10")
viper.SetDefault("log_level", "debug")
viper.SetDefault("log_level", "info")
viper.SetDefault("dns_config", nil)
err := viper.ReadInConfig()
if err != nil {
@ -70,6 +72,45 @@ func LoadConfig(path string) error {
} else {
return nil
}
}
func GetDNSConfig() *tailcfg.DNSConfig {
if viper.IsSet("dns_config") {
dnsConfig := &tailcfg.DNSConfig{}
if viper.IsSet("dns_config.nameservers") {
nameserversStr := viper.GetStringSlice("dns_config.nameservers")
nameservers := make([]netaddr.IP, len(nameserversStr))
resolvers := make([]tailcfg.DNSResolver, len(nameserversStr))
for index, nameserverStr := range nameserversStr {
nameserver, err := netaddr.ParseIP(nameserverStr)
if err != nil {
log.Error().
Str("func", "getDNSConfig").
Err(err).
Msgf("Could not parse nameserver IP: %s", nameserverStr)
}
nameservers[index] = nameserver
resolvers[index] = tailcfg.DNSResolver{
Addr: nameserver.String(),
}
}
dnsConfig.Nameservers = nameservers
dnsConfig.Resolvers = resolvers
}
if viper.IsSet("dns_config.domains") {
dnsConfig.Domains = viper.GetStringSlice("dns_config.domains")
}
return dnsConfig
}
return nil
}
func absPath(path string) string {
@ -126,6 +167,8 @@ func getHeadscaleApp() (*headscale.Headscale, error) {
TLSCertPath: absPath(viper.GetString("tls_cert_path")),
TLSKeyPath: absPath(viper.GetString("tls_key_path")),
DNSConfig: GetDNSConfig(),
}
h, err := headscale.NewHeadscale(cfg)

33
cmd/headscale/headscale_test.go
View file

@ -58,7 +58,7 @@ func (*Suite) TestPostgresConfigLoading(c *check.C) {
c.Assert(viper.GetString("db_port"), check.Equals, "5432")
c.Assert(viper.GetString("tls_letsencrypt_hostname"), check.Equals, "")
c.Assert(viper.GetString("tls_letsencrypt_listen"), check.Equals, ":http")
c.Assert(viper.GetString("tls_letsencrypt_challenge_type"), check.Equals, "HTTP-01")
c.Assert(viper.GetStringSlice("dns_config.nameservers")[0], check.Equals, "1.1.1.1")
}
func (*Suite) TestSqliteConfigLoading(c *check.C) {
@ -92,6 +92,37 @@ func (*Suite) TestSqliteConfigLoading(c *check.C) {
c.Assert(viper.GetString("tls_letsencrypt_hostname"), check.Equals, "")
c.Assert(viper.GetString("tls_letsencrypt_listen"), check.Equals, ":http")
c.Assert(viper.GetString("tls_letsencrypt_challenge_type"), check.Equals, "HTTP-01")
c.Assert(viper.GetStringSlice("dns_config.nameservers")[0], check.Equals, "1.1.1.1")
}
func (*Suite) TestDNSConfigLoading(c *check.C) {
tmpDir, err := ioutil.TempDir("", "headscale")
if err != nil {
c.Fatal(err)
}
defer os.RemoveAll(tmpDir)
path, err := os.Getwd()
if err != nil {
c.Fatal(err)
}
// Symlink the example config file
err = os.Symlink(filepath.Clean(path+"/../../config.json.sqlite.example"), filepath.Join(tmpDir, "config.json"))
if err != nil {
c.Fatal(err)
}
// Load example config, it should load without validation errors
err = cli.LoadConfig(tmpDir)
c.Assert(err, check.IsNil)
dnsConfig := cli.GetDNSConfig()
fmt.Println(dnsConfig)
c.Assert(dnsConfig.Nameservers[0].String(), check.Equals, "1.1.1.1")
c.Assert(dnsConfig.Resolvers[0].Addr, check.Equals, "1.1.1.1")
}
func writeConfig(c *check.C, tmpDir string, configYaml []byte) {

7
config.json.postgres.example
View file

@ -16,5 +16,10 @@
"tls_letsencrypt_challenge_type": "HTTP-01",
"tls_cert_path": "",
"tls_key_path": "",
"acl_policy_path": ""
"acl_policy_path": "",
"dns_config": {
"nameservers": [
"1.1.1.1"
]
}
}

7
config.json.sqlite.example
View file

@ -12,5 +12,10 @@
"tls_letsencrypt_challenge_type": "HTTP-01",
"tls_cert_path": "",
"tls_key_path": "",
"acl_policy_path": ""
"acl_policy_path": "",
"dns_config": {
"nameservers": [
"1.1.1.1"
]
}
}

5
db.go
View file

@ -44,6 +44,11 @@ func (h *Headscale) initDB() error {
return err
}
err = db.AutoMigrate(&SharedMachine{})
if err != nil {
return err
}
err = h.setValue("db_version", dbVersion)
return err
}

2
derp.yaml
View file

@ -1,7 +1,7 @@
# This file contains some of the official Tailscale DERP servers,
# shamelessly taken from https://github.com/tailscale/tailscale/blob/main/net/dnsfallback/dns-fallback-servers.json
#
# If you plan to somehow use headscale, please deploy your own DERP infra
# If you plan to somehow use headscale, please deploy your own DERP infra: https://tailscale.com/kb/1118/custom-derp-servers/
regions:
1:
regionid: 1

116
integration_test.go
View file

@ -4,10 +4,13 @@ package headscale
import (
"bytes"
"context"
"fmt"
"io/ioutil"
"log"
"net/http"
"os"
"path"
"strings"
"testing"
"time"
@ -20,23 +23,48 @@ import (
"inet.af/netaddr"
)
type IntegrationTestSuite struct {
suite.Suite
}
func TestIntegrationTestSuite(t *testing.T) {
suite.Run(t, new(IntegrationTestSuite))
}
var integrationTmpDir string
var ih Headscale
var pool dockertest.Pool
var network dockertest.Network
var headscale dockertest.Resource
var tailscaleCount int = 5
var tailscaleCount int = 25
var tailscales map[string]dockertest.Resource
type IntegrationTestSuite struct {
suite.Suite
stats *suite.SuiteInformation
}
func TestIntegrationTestSuite(t *testing.T) {
s := new(IntegrationTestSuite)
suite.Run(t, s)
// HandleStats, which allows us to check if we passed and save logs
// is called after TearDown, so we cannot tear down containers before
// we have potentially saved the logs.
for _, tailscale := range tailscales {
if err := pool.Purge(&tailscale); err != nil {
log.Printf("Could not purge resource: %s\n", err)
}
}
if !s.stats.Passed() {
err := saveLog(&headscale, "test_output")
if err != nil {
log.Printf("Could not save log: %s\n", err)
}
}
if err := pool.Purge(&headscale); err != nil {
log.Printf("Could not purge resource: %s\n", err)
}
if err := network.Close(); err != nil {
log.Printf("Could not close network: %s\n", err)
}
}
func executeCommand(resource *dockertest.Resource, cmd []string) (string, error) {
var stdout bytes.Buffer
var stderr bytes.Buffer
@ -62,6 +90,48 @@ func executeCommand(resource *dockertest.Resource, cmd []string) (string, error)
return stdout.String(), nil
}
func saveLog(resource *dockertest.Resource, basePath string) error {
err := os.MkdirAll(basePath, os.ModePerm)
if err != nil {
return err
}
var stdout bytes.Buffer
var stderr bytes.Buffer
err = pool.Client.Logs(
docker.LogsOptions{
Context: context.TODO(),
Container: resource.Container.ID,
OutputStream: &stdout,
ErrorStream: &stderr,
Tail: "all",
RawTerminal: false,
Stdout: true,
Stderr: true,
Follow: false,
Timestamps: false,
},
)
if err != nil {
return err
}
fmt.Printf("Saving logs for %s to %s\n", resource.Container.Name, basePath)
err = ioutil.WriteFile(path.Join(basePath, resource.Container.Name+".stdout.log"), []byte(stdout.String()), 0644)
if err != nil {
return err
}
err = ioutil.WriteFile(path.Join(basePath, resource.Container.Name+".stderr.log"), []byte(stdout.String()), 0644)
if err != nil {
return err
}
return nil
}
func dockerRestartPolicy(config *docker.HostConfig) {
// set AutoRemove to true so that stopped container goes away by itself
config.AutoRemove = true
@ -115,7 +185,6 @@ func (s *IntegrationTestSuite) SetupSuite() {
PortBindings: map[docker.Port][]docker.PortBinding{
"8080/tcp": []docker.PortBinding{{HostPort: "8080"}},
},
Env: []string{},
}
fmt.Println("Creating headscale container")
@ -134,7 +203,6 @@ func (s *IntegrationTestSuite) SetupSuite() {
Name: hostname,
Networks: []*dockertest.Network{&network},
Cmd: []string{"tailscaled", "--tun=userspace-networking", "--socks5-server=localhost:1055"},
Env: []string{},
}
if pts, err := pool.BuildAndRunWithBuildOptions(tailscaleBuildOptions, tailscaleOptions, dockerRestartPolicy); err == nil {
@ -145,7 +213,6 @@ func (s *IntegrationTestSuite) SetupSuite() {
fmt.Printf("Created %s container\n", hostname)
}
// TODO: Replace this logic with something that can be detected on Github Actions
fmt.Println("Waiting for headscale to be ready")
hostEndpoint := fmt.Sprintf("localhost:%s", headscale.GetPort("8080/tcp"))
@ -197,23 +264,14 @@ func (s *IntegrationTestSuite) SetupSuite() {
// The nodes need a bit of time to get their updated maps from headscale
// TODO: See if we can have a more deterministic wait here.
time.Sleep(20 * time.Second)
time.Sleep(60 * time.Second)
}
func (s *IntegrationTestSuite) TearDownSuite() {
if err := pool.Purge(&headscale); err != nil {
log.Printf("Could not purge resource: %s\n", err)
}
for _, tailscale := range tailscales {
if err := pool.Purge(&tailscale); err != nil {
log.Printf("Could not purge resource: %s\n", err)
}
}
if err := network.Close(); err != nil {
log.Printf("Could not close network: %s\n", err)
}
func (s *IntegrationTestSuite) HandleStats(suiteName string, stats *suite.SuiteInformation) {
s.stats = stats
}
func (s *IntegrationTestSuite) TestListNodes() {
@ -295,7 +353,15 @@ func (s *IntegrationTestSuite) TestPingAllPeers() {
s.T().Run(fmt.Sprintf("%s-%s", hostname, peername), func(t *testing.T) {
// We currently cant ping ourselves, so skip that.
if peername != hostname {
command := []string{"tailscale", "ping", "--timeout=1s", "--c=1", ip.String()}
// We are only interested in "direct ping" which means what we
// might need a couple of more attempts before reaching the node.
command := []string{
"tailscale", "ping",
"--timeout=1s",
"--c=20",
"--until-direct=true",
ip.String(),
}
fmt.Printf("Pinging from %s (%s) to %s (%s)\n", hostname, ips[hostname], peername, ip)
result, err := executeCommand(

2
integration_test/etc/config.json
View file

@ -7,5 +7,5 @@
"db_type": "sqlite3",
"db_path": "/tmp/integration_test_db.sqlite3",
"acl_policy_path": "",
"log_level": "trace"
"log_level": "debug"
}

161
machine.go
View file

@ -2,6 +2,7 @@ package headscale
import (
"encoding/json"
"errors"
"fmt"
"sort"
"strconv"
@ -32,6 +33,7 @@ type Machine struct {
AuthKey *PreAuthKey
LastSeen *time.Time
LastSuccessfulUpdate *time.Time
Expiry *time.Time
HostInfo datatypes.JSON
@ -48,7 +50,9 @@ func (m Machine) isAlreadyRegistered() bool {
return m.Registered
}
func (m Machine) toNode() (*tailcfg.Node, error) {
// toNode converts a Machine into a Tailscale Node. includeRoutes is false for shared nodes
// as per the expected behaviour in the official SaaS
func (m Machine) toNode(includeRoutes bool) (*tailcfg.Node, error) {
nKey, err := wgkey.ParseHex(m.NodeKey)
if err != nil {
return nil, err
@ -83,6 +87,7 @@ func (m Machine) toNode() (*tailcfg.Node, error) {
allowedIPs := []netaddr.IPPrefix{}
allowedIPs = append(allowedIPs, ip) // we append the node own IP, as it is required by the clients
if includeRoutes {
routesStr := []string{}
if len(m.EnabledRoutes) != 0 {
allwIps, err := m.EnabledRoutes.MarshalJSON()
@ -95,13 +100,14 @@ func (m Machine) toNode() (*tailcfg.Node, error) {
}
}
for _, aip := range routesStr {
ip, err := netaddr.ParseIPPrefix(aip)
for _, routeStr := range routesStr {
ip, err := netaddr.ParseIPPrefix(routeStr)
if err != nil {
return nil, err
}
allowedIPs = append(allowedIPs, ip)
}
}
endpoints := []string{}
if len(m.Endpoints) != 0 {
@ -134,13 +140,20 @@ func (m Machine) toNode() (*tailcfg.Node, error) {
derp = "127.3.3.40:0" // Zero means disconnected or unknown.
}
var keyExpiry time.Time
if m.Expiry != nil {
keyExpiry = *m.Expiry
} else {
keyExpiry = time.Time{}
}
n := tailcfg.Node{
ID: tailcfg.NodeID(m.ID), // this is the actual ID
StableID: tailcfg.StableNodeID(strconv.FormatUint(m.ID, 10)), // in headscale, unlike tailcontrol server, IDs are permanent
Name: hostinfo.Hostname,
User: tailcfg.UserID(m.NamespaceID),
Key: tailcfg.NodeKey(nKey),
KeyExpiry: *m.Expiry,
KeyExpiry: keyExpiry,
Machine: tailcfg.MachineKey(mKey),
DiscoKey: discoKey,
Addresses: addrs,
@ -163,6 +176,7 @@ func (h *Headscale) getPeers(m Machine) (*[]*tailcfg.Node, error) {
Str("func", "getPeers").
Str("machine", m.Name).
Msg("Finding peers")
machines := []Machine{}
if err := h.db.Where("namespace_id = ? AND machine_key <> ? AND registered",
m.NamespaceID, m.MachineKey).Find(&machines).Error; err != nil {
@ -170,9 +184,23 @@ func (h *Headscale) getPeers(m Machine) (*[]*tailcfg.Node, error) {
return nil, err
}
// We fetch here machines that are shared to the `Namespace` of the machine we are getting peers for
sharedMachines := []SharedMachine{}
if err := h.db.Preload("Namespace").Preload("Machine").Where("namespace_id = ?",
m.NamespaceID).Find(&sharedMachines).Error; err != nil {
return nil, err
}
peers := []*tailcfg.Node{}
for _, mn := range machines {
peer, err := mn.toNode()
peer, err := mn.toNode(true)
if err != nil {
return nil, err
}
peers = append(peers, peer)
}
for _, sharedMachine := range sharedMachines {
peer, err := sharedMachine.Machine.toNode(false) // shared nodes do not expose their routes
if err != nil {
return nil, err
}
@ -199,18 +227,27 @@ func (h *Headscale) GetMachine(namespace string, name string) (*Machine, error)
return &m, nil
}
}
return nil, fmt.Errorf("not found")
return nil, fmt.Errorf("machine not found")
}
// GetMachineByID finds a Machine by ID and returns the Machine struct
func (h *Headscale) GetMachineByID(id uint64) (*Machine, error) {
m := Machine{}
if result := h.db.Find(&Machine{ID: id}).First(&m); result.Error != nil {
if result := h.db.Preload("Namespace").Find(&Machine{ID: id}).First(&m); result.Error != nil {
return nil, result.Error
}
return &m, nil
}
// UpdateMachine takes a Machine struct pointer (typically already loaded from database
// and updates it with the latest data from the database.
func (h *Headscale) UpdateMachine(m *Machine) error {
if result := h.db.Find(m).First(&m); result.Error != nil {
return result.Error
}
return nil
}
// DeleteMachine softs deletes a Machine from the database
func (h *Headscale) DeleteMachine(m *Machine) error {
m.Registered = false
@ -249,23 +286,119 @@ func (m *Machine) GetHostInfo() (*tailcfg.Hostinfo, error) {
}
func (h *Headscale) notifyChangesToPeers(m *Machine) {
peers, _ := h.getPeers(*m)
peers, err := h.getPeers(*m)
if err != nil {
log.Error().
Str("func", "notifyChangesToPeers").
Str("machine", m.Name).
Msgf("Error getting peers: %s", err)
return
}
for _, p := range *peers {
pUp, ok := h.clientsPolling.Load(uint64(p.ID))
if ok {
log.Info().
Str("func", "notifyChangesToPeers").
Str("machine", m.Name).
Str("peer", m.Name).
Str("peer", p.Name).
Str("address", p.Addresses[0].String()).
Msgf("Notifying peer %s (%s)", p.Name, p.Addresses[0])
pUp.(chan []byte) <- []byte{}
} else {
err := h.sendRequestOnUpdateChannel(p)
if err != nil {
log.Info().
Str("func", "notifyChangesToPeers").
Str("machine", m.Name).
Str("peer", m.Name).
Str("peer", p.Name).
Msgf("Peer %s does not appear to be polling", p.Name)
}
log.Trace().
Str("func", "notifyChangesToPeers").
Str("machine", m.Name).
Str("peer", p.Name).
Str("address", p.Addresses[0].String()).
Msgf("Notified peer %s (%s)", p.Name, p.Addresses[0])
}
}
func (h *Headscale) getOrOpenUpdateChannel(m *Machine) <-chan struct{} {
var updateChan chan struct{}
if storedChan, ok := h.clientsUpdateChannels.Load(m.ID); ok {
if unwrapped, ok := storedChan.(chan struct{}); ok {
updateChan = unwrapped
} else {
log.Error().
Str("handler", "openUpdateChannel").
Str("machine", m.Name).
Msg("Failed to convert update channel to struct{}")
}
} else {
log.Debug().
Str("handler", "openUpdateChannel").
Str("machine", m.Name).
Msg("Update channel not found, creating")
updateChan = make(chan struct{})
h.clientsUpdateChannels.Store(m.ID, updateChan)
}
return updateChan
}
func (h *Headscale) closeUpdateChannel(m *Machine) {
h.clientsUpdateChannelMutex.Lock()
defer h.clientsUpdateChannelMutex.Unlock()
if storedChan, ok := h.clientsUpdateChannels.Load(m.ID); ok {
if unwrapped, ok := storedChan.(chan struct{}); ok {
close(unwrapped)
}
}
h.clientsUpdateChannels.Delete(m.ID)
}
func (h *Headscale) sendRequestOnUpdateChannel(m *tailcfg.Node) error {
h.clientsUpdateChannelMutex.Lock()
defer h.clientsUpdateChannelMutex.Unlock()
pUp, ok := h.clientsUpdateChannels.Load(uint64(m.ID))
if ok {
log.Info().
Str("func", "requestUpdate").
Str("machine", m.Name).
Msgf("Notifying peer %s", m.Name)
if update, ok := pUp.(chan struct{}); ok {
log.Trace().
Str("func", "requestUpdate").
Str("machine", m.Name).
Msgf("Update channel is %#v", update)
update <- struct{}{}
log.Trace().
Str("func", "requestUpdate").
Str("machine", m.Name).
Msgf("Notified machine %s", m.Name)
}
} else {
log.Info().
Str("func", "requestUpdate").
Str("machine", m.Name).
Msgf("Machine %s does not appear to be polling", m.Name)
return errors.New("machine does not seem to be polling")
}
return nil
}
func (h *Headscale) isOutdated(m *Machine) bool {
err := h.UpdateMachine(m)
if err != nil {
return true
}
lastChange := h.getLastStateChange(m.Namespace.Name)
log.Trace().
Str("func", "keepAlive").
Str("machine", m.Name).
Time("last_successful_update", *m.LastSuccessfulUpdate).
Time("last_state_change", lastChange).
Msgf("Checking if %s is missing updates", m.Name)
return m.LastSuccessfulUpdate.Before(lastChange)
}

24
namespaces.go
View file

@ -91,12 +91,34 @@ func (h *Headscale) ListMachinesInNamespace(name string) (*[]Machine, error) {
}
machines := []Machine{}
if err := h.db.Preload("AuthKey").Where(&Machine{NamespaceID: n.ID}).Find(&machines).Error; err != nil {
if err := h.db.Preload("AuthKey").Preload("Namespace").Where(&Machine{NamespaceID: n.ID}).Find(&machines).Error; err != nil {
return nil, err
}
return &machines, nil
}
// ListSharedMachinesInNamespace returns all the machines that are shared to the specified namespace
func (h *Headscale) ListSharedMachinesInNamespace(name string) (*[]Machine, error) {
namespace, err := h.GetNamespace(name)
if err != nil {
return nil, err
}
sharedMachines := []SharedMachine{}
if err := h.db.Preload("Namespace").Where(&SharedMachine{NamespaceID: namespace.ID}).Find(&sharedMachines).Error; err != nil {
return nil, err
}
machines := []Machine{}
for _, sharedMachine := range sharedMachines {
machine, err := h.GetMachineByID(sharedMachine.MachineID) // otherwise not everything comes filled
if err != nil {
return nil, err
}
machines = append(machines, *machine)
}
return &machines, nil
}
// SetMachineNamespace assigns a Machine to a namespace
func (h *Headscale) SetMachineNamespace(m *Machine, namespaceName string) error {
n, err := h.GetNamespace(namespaceName)

382
poll.go
View file

@ -1,38 +1,225 @@
package headscale
import (
"encoding/json"
"errors"
"io"
"net/http"
"time"
"github.com/gin-gonic/gin"
"github.com/rs/zerolog/log"
"gorm.io/datatypes"
"gorm.io/gorm"
"tailscale.com/tailcfg"
"tailscale.com/types/wgkey"
)
// PollNetMapHandler takes care of /machine/:id/map
//
// This is the busiest endpoint, as it keeps the HTTP long poll that updates
// the clients when something in the network changes.
//
// The clients POST stuff like HostInfo and their Endpoints here, but
// only after their first request (marked with the ReadOnly field).
//
// At this moment the updates are sent in a quite horrendous way, but they kinda work.
func (h *Headscale) PollNetMapHandler(c *gin.Context) {
log.Trace().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Msg("PollNetMapHandler called")
body, _ := io.ReadAll(c.Request.Body)
mKeyStr := c.Param("id")
mKey, err := wgkey.ParseHex(mKeyStr)
if err != nil {
log.Error().
Str("handler", "PollNetMap").
Err(err).
Msg("Cannot parse client key")
c.String(http.StatusBadRequest, "")
return
}
req := tailcfg.MapRequest{}
err = decode(body, &req, &mKey, h.privateKey)
if err != nil {
log.Error().
Str("handler", "PollNetMap").
Err(err).
Msg("Cannot decode message")
c.String(http.StatusBadRequest, "")
return
}
var m Machine
if result := h.db.Preload("Namespace").First(&m, "machine_key = ?", mKey.HexString()); errors.Is(result.Error, gorm.ErrRecordNotFound) {
log.Warn().
Str("handler", "PollNetMap").
Msgf("Ignoring request, cannot find machine with key %s", mKey.HexString())
c.String(http.StatusUnauthorized, "")
return
}
log.Trace().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Msg("Found machine in database")
hostinfo, _ := json.Marshal(req.Hostinfo)
m.Name = req.Hostinfo.Hostname
m.HostInfo = datatypes.JSON(hostinfo)
m.DiscoKey = wgkey.Key(req.DiscoKey).HexString()
now := time.Now().UTC()
// From Tailscale client:
//
// ReadOnly is whether the client just wants to fetch the MapResponse,
// without updating their Endpoints. The Endpoints field will be ignored and
// LastSeen will not be updated and peers will not be notified of changes.
//
// The intended use is for clients to discover the DERP map at start-up
// before their first real endpoint update.
if !req.ReadOnly {
endpoints, _ := json.Marshal(req.Endpoints)
m.Endpoints = datatypes.JSON(endpoints)
m.LastSeen = &now
}
h.db.Save(&m)
data, err := h.getMapResponse(mKey, req, m)
if err != nil {
log.Error().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Err(err).
Msg("Failed to get Map response")
c.String(http.StatusInternalServerError, ":(")
return
}
// We update our peers if the client is not sending ReadOnly in the MapRequest
// so we don't distribute its initial request (it comes with
// empty endpoints to peers)
// Details on the protocol can be found in https://github.com/tailscale/tailscale/blob/main/tailcfg/tailcfg.go#L696
log.Debug().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Bool("readOnly", req.ReadOnly).
Bool("omitPeers", req.OmitPeers).
Bool("stream", req.Stream).
Msg("Client map request processed")
if req.ReadOnly {
log.Info().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Client is starting up. Probably interested in a DERP map")
c.Data(200, "application/json; charset=utf-8", *data)
return
}
// There has been an update to _any_ of the nodes that the other nodes would
// need to know about
h.setLastStateChangeToNow(m.Namespace.Name)
// The request is not ReadOnly, so we need to set up channels for updating
// peers via longpoll
// Only create update channel if it has not been created
log.Trace().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Msg("Loading or creating update channel")
updateChan := h.getOrOpenUpdateChannel(&m)
pollDataChan := make(chan []byte)
// defer close(pollData)
keepAliveChan := make(chan []byte)
cancelKeepAlive := make(chan struct{})
defer close(cancelKeepAlive)
if req.OmitPeers && !req.Stream {
log.Info().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Client sent endpoint update and is ok with a response without peer list")
c.Data(200, "application/json; charset=utf-8", *data)
// It sounds like we should update the nodes when we have received a endpoint update
// even tho the comments in the tailscale code dont explicitly say so.
go h.notifyChangesToPeers(&m)
return
} else if req.OmitPeers && req.Stream {
log.Warn().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Ignoring request, don't know how to handle it")
c.String(http.StatusBadRequest, "")
return
}
log.Info().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Client is ready to access the tailnet")
log.Info().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Sending initial map")
go func() { pollDataChan <- *data }()
log.Info().
Str("handler", "PollNetMap").
Str("machine", m.Name).
Msg("Notifying peers")
go h.notifyChangesToPeers(&m)
h.PollNetMapStream(c, m, req, mKey, pollDataChan, keepAliveChan, updateChan, cancelKeepAlive)
log.Trace().
Str("handler", "PollNetMap").
Str("id", c.Param("id")).
Str("machine", m.Name).
Msg("Finished stream, closing PollNetMap session")
}
// PollNetMapStream takes care of /machine/:id/map
// stream logic, ensuring we communicate updates and data
// to the connected clients.
func (h *Headscale) PollNetMapStream(
c *gin.Context,
m Machine,
req tailcfg.MapRequest,
mKey wgkey.Key,
pollData chan []byte,
update chan []byte,
cancelKeepAlive chan []byte,
pollDataChan chan []byte,
keepAliveChan chan []byte,
updateChan <-chan struct{},
cancelKeepAlive chan struct{},
) {
go h.keepAlive(cancelKeepAlive, pollData, mKey, req, m)
go h.scheduledPollWorker(cancelKeepAlive, keepAliveChan, mKey, req, m)
c.Stream(func(w io.Writer) bool {
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Msg("Waiting for data to stream...")
select {
case data := <-pollData:
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Msgf("pollData is %#v, keepAliveChan is %#v, updateChan is %#v", pollDataChan, keepAliveChan, updateChan)
select {
case data := <-pollDataChan:
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "pollData").
Int("bytes", len(data)).
Msg("Sending data received via pollData channel")
_, err := w.Write(data)
@ -40,34 +227,104 @@ func (h *Headscale) PollNetMapStream(
log.Error().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "pollData").
Err(err).
Msg("Cannot write data")
}
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "pollData").
Int("bytes", len(data)).
Msg("Data from pollData channel written successfully")
// TODO: Abstract away all the database calls, this can cause race conditions
// when an outdated machine object is kept alive, e.g. db is update from
// command line, but then overwritten.
err = h.UpdateMachine(&m)
if err != nil {
log.Error().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "pollData").
Err(err).
Msg("Cannot update machine from database")
}
now := time.Now().UTC()
m.LastSeen = &now
m.LastSuccessfulUpdate = &now
h.db.Save(&m)
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "pollData").
Int("bytes", len(data)).
Msg("Machine updated successfully after sending pollData")
return true
case data := <-keepAliveChan:
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "keepAlive").
Int("bytes", len(data)).
Msg("Sending keep alive message")
_, err := w.Write(data)
if err != nil {
log.Error().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "keepAlive").
Err(err).
Msg("Cannot write keep alive message")
}
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "keepAlive").
Int("bytes", len(data)).
Msg("Keep alive sent successfully")
// TODO: Abstract away all the database calls, this can cause race conditions
// when an outdated machine object is kept alive, e.g. db is update from
// command line, but then overwritten.
err = h.UpdateMachine(&m)
if err != nil {
log.Error().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "keepAlive").
Err(err).
Msg("Cannot update machine from database")
}
now := time.Now().UTC()
m.LastSeen = &now
h.db.Save(&m)
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "keepAlive").
Int("bytes", len(data)).
Msg("Machine updated successfully after sending pollData")
Msg("Machine updated successfully after sending keep alive")
return true
case <-update:
case <-updateChan:
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "update").
Msg("Received a request for update")
if h.isOutdated(&m) {
log.Debug().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Msg("Received a request for update")
Time("last_successful_update", *m.LastSuccessfulUpdate).
Time("last_state_change", h.getLastStateChange(m.Namespace.Name)).
Msgf("There has been updates since the last successful update to %s", m.Name)
data, err := h.getMapResponse(mKey, req, m)
if err != nil {
log.Error().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "update").
Err(err).
Msg("Could not get the map update")
}
@ -76,9 +333,43 @@ func (h *Headscale) PollNetMapStream(
log.Error().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "update").
Err(err).
Msg("Could not write the map response")
}
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "update").
Msg("Updated Map has been sent")
// Keep track of the last successful update,
// we sometimes end in a state were the update
// is not picked up by a client and we use this
// to determine if we should "force" an update.
// TODO: Abstract away all the database calls, this can cause race conditions
// when an outdated machine object is kept alive, e.g. db is update from
// command line, but then overwritten.
err = h.UpdateMachine(&m)
if err != nil {
log.Error().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "update").
Err(err).
Msg("Cannot update machine from database")
}
now := time.Now().UTC()
m.LastSuccessfulUpdate = &now
h.db.Save(&m)
} else {
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Time("last_successful_update", *m.LastSuccessfulUpdate).
Time("last_state_change", h.getLastStateChange(m.Namespace.Name)).
Msgf("%s is up to date", m.Name)
}
return true
case <-c.Request.Context().Done():
@ -86,13 +377,78 @@ func (h *Headscale) PollNetMapStream(
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Msg("The client has closed the connection")
// TODO: Abstract away all the database calls, this can cause race conditions
// when an outdated machine object is kept alive, e.g. db is update from
// command line, but then overwritten.
err := h.UpdateMachine(&m)
if err != nil {
log.Error().
Str("handler", "PollNetMapStream").
Str("machine", m.Name).
Str("channel", "Done").
Err(err).
Msg("Cannot update machine from database")
}
now := time.Now().UTC()
m.LastSeen = &now
h.db.Save(&m)
cancelKeepAlive <- []byte{}
h.clientsPolling.Delete(m.ID)
close(update)
cancelKeepAlive <- struct{}{}
h.closeUpdateChannel(&m)
close(pollDataChan)
close(keepAliveChan)
return false
}
})
}
func (h *Headscale) scheduledPollWorker(
cancelChan <-chan struct{},
keepAliveChan chan<- []byte,
mKey wgkey.Key,
req tailcfg.MapRequest,
m Machine,
) {
keepAliveTicker := time.NewTicker(60 * time.Second)
updateCheckerTicker := time.NewTicker(30 * time.Second)
for {
select {
case <-cancelChan:
return
case <-keepAliveTicker.C:
data, err := h.getMapKeepAliveResponse(mKey, req, m)
if err != nil {
log.Error().
Str("func", "keepAlive").
Err(err).
Msg("Error generating the keep alive msg")
return
}
log.Debug().
Str("func", "keepAlive").
Str("machine", m.Name).
Msg("Sending keepalive")
keepAliveChan <- *data
case <-updateCheckerTicker.C:
// Send an update request regardless of outdated or not, if data is sent
// to the node is determined in the updateChan consumer block
n, _ := m.toNode(true)
err := h.sendRequestOnUpdateChannel(n)
if err != nil {
log.Error().
Str("func", "keepAlive").
Str("machine", m.Name).
Err(err).
Msgf("Failed to send update request to %s", m.Name)
}
}
}
}

115
routes.go
View file

@ -2,55 +2,142 @@ package headscale
import (
"encoding/json"
"errors"
"fmt"
"strconv"
"github.com/pterm/pterm"
"gorm.io/datatypes"
"inet.af/netaddr"
)
// GetNodeRoutes returns the subnet routes advertised by a node (identified by
// GetAdvertisedNodeRoutes returns the subnet routes advertised by a node (identified by
// namespace and node name)
func (h *Headscale) GetNodeRoutes(namespace string, nodeName string) (*[]netaddr.IPPrefix, error) {
func (h *Headscale) GetAdvertisedNodeRoutes(namespace string, nodeName string) (*[]netaddr.IPPrefix, error) {
m, err := h.GetMachine(namespace, nodeName)
if err != nil {
return nil, err
}
hi, err := m.GetHostInfo()
hostInfo, err := m.GetHostInfo()
if err != nil {
return nil, err
}
return &hi.RoutableIPs, nil
return &hostInfo.RoutableIPs, nil
}
// EnableNodeRoute enables a subnet route advertised by a node (identified by
// GetEnabledNodeRoutes returns the subnet routes enabled by a node (identified by
// namespace and node name)
func (h *Headscale) EnableNodeRoute(namespace string, nodeName string, routeStr string) (*netaddr.IPPrefix, error) {
func (h *Headscale) GetEnabledNodeRoutes(namespace string, nodeName string) ([]netaddr.IPPrefix, error) {
m, err := h.GetMachine(namespace, nodeName)
if err != nil {
return nil, err
}
hi, err := m.GetHostInfo()
data, err := m.EnabledRoutes.MarshalJSON()
if err != nil {
return nil, err
}
routesStr := []string{}
err = json.Unmarshal(data, &routesStr)
if err != nil {
return nil, err
}
routes := make([]netaddr.IPPrefix, len(routesStr))
for index, routeStr := range routesStr {
route, err := netaddr.ParseIPPrefix(routeStr)
if err != nil {
return nil, err
}
routes[index] = route
}
return routes, nil
}
// IsNodeRouteEnabled checks if a certain route has been enabled
func (h *Headscale) IsNodeRouteEnabled(namespace string, nodeName string, routeStr string) bool {
route, err := netaddr.ParseIPPrefix(routeStr)
if err != nil {
return false
}
enabledRoutes, err := h.GetEnabledNodeRoutes(namespace, nodeName)
if err != nil {
return false
}
for _, enabledRoute := range enabledRoutes {
if route == enabledRoute {
return true
}
}
return false
}
// EnableNodeRoute enables a subnet route advertised by a node (identified by
// namespace and node name)
func (h *Headscale) EnableNodeRoute(namespace string, nodeName string, routeStr string) error {
m, err := h.GetMachine(namespace, nodeName)
if err != nil {
return err
}
route, err := netaddr.ParseIPPrefix(routeStr)
if err != nil {
return err
}
availableRoutes, err := h.GetAdvertisedNodeRoutes(namespace, nodeName)
if err != nil {
return err
}
enabledRoutes, err := h.GetEnabledNodeRoutes(namespace, nodeName)
if err != nil {
return err
}
available := false
for _, availableRoute := range *availableRoutes {
// If the route is available, and not yet enabled, add it to the new routing table
if route == availableRoute {
available = true
if !h.IsNodeRouteEnabled(namespace, nodeName, routeStr) {
enabledRoutes = append(enabledRoutes, route)
}
}
}
if !available {
return fmt.Errorf("route (%s) is not available on node %s", nodeName, routeStr)
}
routes, err := json.Marshal(enabledRoutes)
if err != nil {
return err
}
for _, rIP := range hi.RoutableIPs {
if rIP == route {
routes, _ := json.Marshal([]string{routeStr}) // TODO: only one for the time being, so overwriting the rest
m.EnabledRoutes = datatypes.JSON(routes)
h.db.Save(&m)
err = h.RequestMapUpdates(m.NamespaceID)
if err != nil {
return nil, err
return err
}
return &rIP, nil
return nil
}
// RoutesToPtables converts the list of routes to a nice table
func (h *Headscale) RoutesToPtables(namespace string, nodeName string, availableRoutes []netaddr.IPPrefix) pterm.TableData {
d := pterm.TableData{{"Route", "Enabled"}}
for _, route := range availableRoutes {
enabled := h.IsNodeRouteEnabled(namespace, nodeName, route.String())
d = append(d, []string{route.String(), strconv.FormatBool(enabled)})
}
return nil, errors.New("could not find routable range")
return d
}

83
routes_test.go
View file

@ -16,7 +16,7 @@ func (s *Suite) TestGetRoutes(c *check.C) {
pak, err := h.CreatePreAuthKey(n.Name, false, false, nil)
c.Assert(err, check.IsNil)
_, err = h.GetMachine("test", "testmachine")
_, err = h.GetMachine("test", "test_get_route_machine")
c.Assert(err, check.NotNil)
route, err := netaddr.ParseIPPrefix("10.0.0.0/24")
@ -33,7 +33,7 @@ func (s *Suite) TestGetRoutes(c *check.C) {
MachineKey: "foo",
NodeKey: "bar",
DiscoKey: "faa",
Name: "testmachine",
Name: "test_get_route_machine",
NamespaceID: n.ID,
Registered: true,
RegisterMethod: "authKey",
@ -42,14 +42,87 @@ func (s *Suite) TestGetRoutes(c *check.C) {
}
h.db.Save(&m)
r, err := h.GetNodeRoutes("test", "testmachine")
r, err := h.GetAdvertisedNodeRoutes("test", "test_get_route_machine")
c.Assert(err, check.IsNil)
c.Assert(len(*r), check.Equals, 1)
_, err = h.EnableNodeRoute("test", "testmachine", "192.168.0.0/24")
err = h.EnableNodeRoute("test", "test_get_route_machine", "192.168.0.0/24")
c.Assert(err, check.NotNil)
_, err = h.EnableNodeRoute("test", "testmachine", "10.0.0.0/24")
err = h.EnableNodeRoute("test", "test_get_route_machine", "10.0.0.0/24")
c.Assert(err, check.IsNil)
}
func (s *Suite) TestGetEnableRoutes(c *check.C) {
n, err := h.CreateNamespace("test")
c.Assert(err, check.IsNil)
pak, err := h.CreatePreAuthKey(n.Name, false, false, nil)
c.Assert(err, check.IsNil)
_, err = h.GetMachine("test", "test_enable_route_machine")
c.Assert(err, check.NotNil)
route, err := netaddr.ParseIPPrefix(
"10.0.0.0/24",
)
c.Assert(err, check.IsNil)
route2, err := netaddr.ParseIPPrefix(
"150.0.10.0/25",
)
c.Assert(err, check.IsNil)
hi := tailcfg.Hostinfo{
RoutableIPs: []netaddr.IPPrefix{route, route2},
}
hostinfo, err := json.Marshal(hi)
c.Assert(err, check.IsNil)
m := Machine{
ID: 0,
MachineKey: "foo",
NodeKey: "bar",
DiscoKey: "faa",
Name: "test_enable_route_machine",
NamespaceID: n.ID,
Registered: true,
RegisterMethod: "authKey",
AuthKeyID: uint(pak.ID),
HostInfo: datatypes.JSON(hostinfo),
}
h.db.Save(&m)
availableRoutes, err := h.GetAdvertisedNodeRoutes("test", "test_enable_route_machine")
c.Assert(err, check.IsNil)
c.Assert(len(*availableRoutes), check.Equals, 2)
enabledRoutes, err := h.GetEnabledNodeRoutes("test", "test_enable_route_machine")
c.Assert(err, check.IsNil)
c.Assert(len(enabledRoutes), check.Equals, 0)
err = h.EnableNodeRoute("test", "test_enable_route_machine", "192.168.0.0/24")
c.Assert(err, check.NotNil)
err = h.EnableNodeRoute("test", "test_enable_route_machine", "10.0.0.0/24")
c.Assert(err, check.IsNil)
enabledRoutes1, err := h.GetEnabledNodeRoutes("test", "test_enable_route_machine")
c.Assert(err, check.IsNil)
c.Assert(len(enabledRoutes1), check.Equals, 1)
// Adding it twice will just let it pass through
err = h.EnableNodeRoute("test", "test_enable_route_machine", "10.0.0.0/24")
c.Assert(err, check.IsNil)
enabledRoutes2, err := h.GetEnabledNodeRoutes("test", "test_enable_route_machine")
c.Assert(err, check.IsNil)
c.Assert(len(enabledRoutes2), check.Equals, 1)
err = h.EnableNodeRoute("test", "test_enable_route_machine", "150.0.10.0/25")
c.Assert(err, check.IsNil)
enabledRoutes3, err := h.GetEnabledNodeRoutes("test", "test_enable_route_machine")
c.Assert(err, check.IsNil)
c.Assert(len(enabledRoutes3), check.Equals, 2)
}

2
scripts/version-at-commit.sh
View file

@ -1,4 +1,4 @@
#!/bin/bash
#!/usr/bin/env bash
set -e -o pipefail
commit="$1"

37
sharing.go Normal file
View file

@ -0,0 +1,37 @@
package headscale
import "gorm.io/gorm"
const errorSameNamespace = Error("Destination namespace same as origin")
const errorMachineAlreadyShared = Error("Node already shared to this namespace")
// SharedMachine is a join table to support sharing nodes between namespaces
type SharedMachine struct {
gorm.Model
MachineID uint64
Machine Machine
NamespaceID uint
Namespace Namespace
}
// AddSharedMachineToNamespace adds a machine as a shared node to a namespace
func (h *Headscale) AddSharedMachineToNamespace(m *Machine, ns *Namespace) error {
if m.NamespaceID == ns.ID {
return errorSameNamespace
}
sharedMachine := SharedMachine{}
if err := h.db.Where("machine_id = ? AND namespace_id", m.ID, ns.ID).First(&sharedMachine).Error; err == nil {
return errorMachineAlreadyShared
}
sharedMachine = SharedMachine{
MachineID: m.ID,
Machine: *m,
NamespaceID: ns.ID,
Namespace: *ns,
}
h.db.Save(&sharedMachine)
return nil
}

359
sharing_test.go Normal file
View file

@ -0,0 +1,359 @@
package headscale
import (
"gopkg.in/check.v1"
"tailscale.com/tailcfg"
)
func (s *Suite) TestBasicSharedNodesInNamespace(c *check.C) {
n1, err := h.CreateNamespace("shared1")
c.Assert(err, check.IsNil)
n2, err := h.CreateNamespace("shared2")
c.Assert(err, check.IsNil)
pak1, err := h.CreatePreAuthKey(n1.Name, false, false, nil)
c.Assert(err, check.IsNil)
pak2, err := h.CreatePreAuthKey(n2.Name, false, false, nil)
c.Assert(err, check.IsNil)
_, err = h.GetMachine(n1.Name, "test_get_shared_nodes_1")
c.Assert(err, check.NotNil)
m1 := Machine{
ID: 0,
MachineKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
NodeKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
DiscoKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
Name: "test_get_shared_nodes_1",
NamespaceID: n1.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.1",
AuthKeyID: uint(pak1.ID),
}
h.db.Save(&m1)
_, err = h.GetMachine(n1.Name, m1.Name)
c.Assert(err, check.IsNil)
m2 := Machine{
ID: 1,
MachineKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
NodeKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
DiscoKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
Name: "test_get_shared_nodes_2",
NamespaceID: n2.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.2",
AuthKeyID: uint(pak2.ID),
}
h.db.Save(&m2)
_, err = h.GetMachine(n2.Name, m2.Name)
c.Assert(err, check.IsNil)
p1s, err := h.getPeers(m1)
c.Assert(err, check.IsNil)
c.Assert(len(*p1s), check.Equals, 0)
err = h.AddSharedMachineToNamespace(&m2, n1)
c.Assert(err, check.IsNil)
p1sAfter, err := h.getPeers(m1)
c.Assert(err, check.IsNil)
c.Assert(len(*p1sAfter), check.Equals, 1)
c.Assert((*p1sAfter)[0].ID, check.Equals, tailcfg.NodeID(m2.ID))
}
func (s *Suite) TestSameNamespace(c *check.C) {
n1, err := h.CreateNamespace("shared1")
c.Assert(err, check.IsNil)
n2, err := h.CreateNamespace("shared2")
c.Assert(err, check.IsNil)
pak1, err := h.CreatePreAuthKey(n1.Name, false, false, nil)
c.Assert(err, check.IsNil)
pak2, err := h.CreatePreAuthKey(n2.Name, false, false, nil)
c.Assert(err, check.IsNil)
_, err = h.GetMachine(n1.Name, "test_get_shared_nodes_1")
c.Assert(err, check.NotNil)
m1 := Machine{
ID: 0,
MachineKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
NodeKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
DiscoKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
Name: "test_get_shared_nodes_1",
NamespaceID: n1.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.1",
AuthKeyID: uint(pak1.ID),
}
h.db.Save(&m1)
_, err = h.GetMachine(n1.Name, m1.Name)
c.Assert(err, check.IsNil)
m2 := Machine{
ID: 1,
MachineKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
NodeKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
DiscoKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
Name: "test_get_shared_nodes_2",
NamespaceID: n2.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.2",
AuthKeyID: uint(pak2.ID),
}
h.db.Save(&m2)
_, err = h.GetMachine(n2.Name, m2.Name)
c.Assert(err, check.IsNil)
p1s, err := h.getPeers(m1)
c.Assert(err, check.IsNil)
c.Assert(len(*p1s), check.Equals, 0)
err = h.AddSharedMachineToNamespace(&m1, n1)
c.Assert(err, check.Equals, errorSameNamespace)
}
func (s *Suite) TestAlreadyShared(c *check.C) {
n1, err := h.CreateNamespace("shared1")
c.Assert(err, check.IsNil)
n2, err := h.CreateNamespace("shared2")
c.Assert(err, check.IsNil)
pak1, err := h.CreatePreAuthKey(n1.Name, false, false, nil)
c.Assert(err, check.IsNil)
pak2, err := h.CreatePreAuthKey(n2.Name, false, false, nil)
c.Assert(err, check.IsNil)
_, err = h.GetMachine(n1.Name, "test_get_shared_nodes_1")
c.Assert(err, check.NotNil)
m1 := Machine{
ID: 0,
MachineKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
NodeKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
DiscoKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
Name: "test_get_shared_nodes_1",
NamespaceID: n1.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.1",
AuthKeyID: uint(pak1.ID),
}
h.db.Save(&m1)
_, err = h.GetMachine(n1.Name, m1.Name)
c.Assert(err, check.IsNil)
m2 := Machine{
ID: 1,
MachineKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
NodeKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
DiscoKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
Name: "test_get_shared_nodes_2",
NamespaceID: n2.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.2",
AuthKeyID: uint(pak2.ID),
}
h.db.Save(&m2)
_, err = h.GetMachine(n2.Name, m2.Name)
c.Assert(err, check.IsNil)
p1s, err := h.getPeers(m1)
c.Assert(err, check.IsNil)
c.Assert(len(*p1s), check.Equals, 0)
err = h.AddSharedMachineToNamespace(&m2, n1)
c.Assert(err, check.IsNil)
err = h.AddSharedMachineToNamespace(&m2, n1)
c.Assert(err, check.Equals, errorMachineAlreadyShared)
}
func (s *Suite) TestDoNotIncludeRoutesOnShared(c *check.C) {
n1, err := h.CreateNamespace("shared1")
c.Assert(err, check.IsNil)
n2, err := h.CreateNamespace("shared2")
c.Assert(err, check.IsNil)
pak1, err := h.CreatePreAuthKey(n1.Name, false, false, nil)
c.Assert(err, check.IsNil)
pak2, err := h.CreatePreAuthKey(n2.Name, false, false, nil)
c.Assert(err, check.IsNil)
_, err = h.GetMachine(n1.Name, "test_get_shared_nodes_1")
c.Assert(err, check.NotNil)
m1 := Machine{
ID: 0,
MachineKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
NodeKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
DiscoKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
Name: "test_get_shared_nodes_1",
NamespaceID: n1.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.1",
AuthKeyID: uint(pak1.ID),
}
h.db.Save(&m1)
_, err = h.GetMachine(n1.Name, m1.Name)
c.Assert(err, check.IsNil)
m2 := Machine{
ID: 1,
MachineKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
NodeKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
DiscoKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
Name: "test_get_shared_nodes_2",
NamespaceID: n2.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.2",
AuthKeyID: uint(pak2.ID),
}
h.db.Save(&m2)
_, err = h.GetMachine(n2.Name, m2.Name)
c.Assert(err, check.IsNil)
p1s, err := h.getPeers(m1)
c.Assert(err, check.IsNil)
c.Assert(len(*p1s), check.Equals, 0)
err = h.AddSharedMachineToNamespace(&m2, n1)
c.Assert(err, check.IsNil)
p1sAfter, err := h.getPeers(m1)
c.Assert(err, check.IsNil)
c.Assert(len(*p1sAfter), check.Equals, 1)
c.Assert(len((*p1sAfter)[0].AllowedIPs), check.Equals, 1)
}
func (s *Suite) TestComplexSharingAcrossNamespaces(c *check.C) {
n1, err := h.CreateNamespace("shared1")
c.Assert(err, check.IsNil)
n2, err := h.CreateNamespace("shared2")
c.Assert(err, check.IsNil)
n3, err := h.CreateNamespace("shared3")
c.Assert(err, check.IsNil)
pak1, err := h.CreatePreAuthKey(n1.Name, false, false, nil)
c.Assert(err, check.IsNil)
pak2, err := h.CreatePreAuthKey(n2.Name, false, false, nil)
c.Assert(err, check.IsNil)
pak3, err := h.CreatePreAuthKey(n3.Name, false, false, nil)
c.Assert(err, check.IsNil)
pak4, err := h.CreatePreAuthKey(n1.Name, false, false, nil)
c.Assert(err, check.IsNil)
_, err = h.GetMachine(n1.Name, "test_get_shared_nodes_1")
c.Assert(err, check.NotNil)
m1 := Machine{
ID: 0,
MachineKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
NodeKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
DiscoKey: "686824e749f3b7f2a5927ee6c1e422aee5292592d9179a271ed7b3e659b44a66",
Name: "test_get_shared_nodes_1",
NamespaceID: n1.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.1",
AuthKeyID: uint(pak1.ID),
}
h.db.Save(&m1)
_, err = h.GetMachine(n1.Name, m1.Name)
c.Assert(err, check.IsNil)
m2 := Machine{
ID: 1,
MachineKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
NodeKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
DiscoKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
Name: "test_get_shared_nodes_2",
NamespaceID: n2.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.2",
AuthKeyID: uint(pak2.ID),
}
h.db.Save(&m2)
_, err = h.GetMachine(n2.Name, m2.Name)
c.Assert(err, check.IsNil)
m3 := Machine{
ID: 2,
MachineKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
NodeKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
DiscoKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
Name: "test_get_shared_nodes_3",
NamespaceID: n3.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.3",
AuthKeyID: uint(pak3.ID),
}
h.db.Save(&m3)
_, err = h.GetMachine(n3.Name, m3.Name)
c.Assert(err, check.IsNil)
m4 := Machine{
ID: 3,
MachineKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
NodeKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
DiscoKey: "dec46ef9dc45c7d2f03bfcd5a640d9e24e3cc68ce3d9da223867c9bc6d5e9863",
Name: "test_get_shared_nodes_4",
NamespaceID: n1.ID,
Registered: true,
RegisterMethod: "authKey",
IPAddress: "100.64.0.4",
AuthKeyID: uint(pak4.ID),
}
h.db.Save(&m4)
_, err = h.GetMachine(n1.Name, m4.Name)
c.Assert(err, check.IsNil)
p1s, err := h.getPeers(m1)
c.Assert(err, check.IsNil)
c.Assert(len(*p1s), check.Equals, 1) // nodes 1 and 4
err = h.AddSharedMachineToNamespace(&m2, n1)
c.Assert(err, check.IsNil)
p1sAfter, err := h.getPeers(m1)
c.Assert(err, check.IsNil)
c.Assert(len(*p1sAfter), check.Equals, 2) // nodes 1, 2, 4
pAlone, err := h.getPeers(m3)
c.Assert(err, check.IsNil)
c.Assert(len(*pAlone), check.Equals, 0) // node 3 is alone
}