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Merge with docker/libnetwork

Browse source 
Signed-off-by: Jana Radhakrishnan <mrjana@socketplane.io>
This commit is contained in:
Jana Radhakrishnan 2015-03-06 16:08:25 +00:00
commit 91589f4948
137 changed files with 13258 additions and 120 deletions
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38
libnetwork/Godeps/Godeps.json generated Normal file
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{
"ImportPath": "github.com/docker/libnetwork",
"GoVersion": "go1.4.2",
"Packages": [
"./..."
],
"Deps": [
{
"ImportPath": "github.com/Sirupsen/logrus",
"Comment": "v0.6.4-12-g467d9d5",
"Rev": "467d9d55c2d2c17248441a8fc661561161f40d5e"
},
{
"ImportPath": "github.com/docker/docker/daemon/networkdriver",
"Comment": "v1.4.1-1379-g8e107a9",
"Rev": "8e107a93210c54f22ec1354d969c771b1abfbe05"
},
{
"ImportPath": "github.com/docker/docker/pkg/parsers/kernel",
"Comment": "v1.4.1-1379-g8e107a9",
"Rev": "8e107a93210c54f22ec1354d969c771b1abfbe05"
},
{
"ImportPath": "github.com/docker/docker/pkg/reexec",
"Comment": "v1.4.1-1379-g8e107a9",
"Rev": "8e107a93210c54f22ec1354d969c771b1abfbe05"
},
{
"ImportPath": "github.com/docker/libcontainer/netlink",
"Comment": "v1.4.0-324-g88989e6",
"Rev": "88989e66d3a1ab960deb37f3dd7f824d85e1b9bc"
},
{
"ImportPath": "github.com/vishvananda/netlink",
"Rev": "8eb64238879fed52fd51c5b30ad20b928fb4c36c"
}
]
}

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This directory tree is generated automatically by godep.
Please do not edit.
See https://github.com/tools/godep for more information.

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/pkg
/bin

1
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/.gitignore generated vendored Normal file
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logrus

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libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/.travis.yml generated vendored Normal file
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language: go
go:
- 1.2
- 1.3
- 1.4
- tip
install:
- go get -t ./...

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libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/LICENSE generated vendored Normal file
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The MIT License (MIT)
Copyright (c) 2014 Simon Eskildsen
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/README.md generated vendored Normal file
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# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>&nbsp;[![Build Status](https://travis-ci.org/Sirupsen/logrus.svg?branch=master)](https://travis-ci.org/Sirupsen/logrus)&nbsp;[![godoc reference](https://godoc.org/github.com/Sirupsen/logrus?status.png)][godoc]
Logrus is a structured logger for Go (golang), completely API compatible with
the standard library logger. [Godoc][godoc]. **Please note the Logrus API is not
yet stable (pre 1.0), the core API is unlikely to change much but please version
control your Logrus to make sure you aren't fetching latest `master` on every
build.**
Nicely color-coded in development (when a TTY is attached, otherwise just
plain text):
![Colored](http://i.imgur.com/PY7qMwd.png)
With `log.Formatter = new(logrus.JSONFormatter)`, for easy parsing by logstash
or Splunk:
```json
{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the
ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"}
{"level":"warning","msg":"The group's number increased tremendously!",
"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"}
{"animal":"walrus","level":"info","msg":"A giant walrus appears!",
"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"}
{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.",
"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"}
{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true,
"time":"2014-03-10 19:57:38.562543128 -0400 EDT"}
```
With the default `log.Formatter = new(logrus.TextFormatter)` when a TTY is not
attached, the output is compatible with the
[logfmt](http://godoc.org/github.com/kr/logfmt) format:
```text
time="2014-04-20 15:36:23.830442383 -0400 EDT" level="info" msg="A group of walrus emerges from the ocean" animal="walrus" size=10
time="2014-04-20 15:36:23.830584199 -0400 EDT" level="warning" msg="The group's number increased tremendously!" omg=true number=122
time="2014-04-20 15:36:23.830596521 -0400 EDT" level="info" msg="A giant walrus appears!" animal="walrus" size=10
time="2014-04-20 15:36:23.830611837 -0400 EDT" level="info" msg="Tremendously sized cow enters the ocean." animal="walrus" size=9
time="2014-04-20 15:36:23.830626464 -0400 EDT" level="fatal" msg="The ice breaks!" omg=true number=100
```
#### Example
The simplest way to use Logrus is simply the package-level exported logger:
```go
package main
import (
log "github.com/Sirupsen/logrus"
)
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
}).Info("A walrus appears")
}
```
Note that it's completely api-compatible with the stdlib logger, so you can
replace your `log` imports everywhere with `log "github.com/Sirupsen/logrus"`
and you'll now have the flexibility of Logrus. You can customize it all you
want:
```go
package main
import (
"os"
log "github.com/Sirupsen/logrus"
"github.com/Sirupsen/logrus/hooks/airbrake"
)
func init() {
// Log as JSON instead of the default ASCII formatter.
log.SetFormatter(&log.JSONFormatter{})
// Use the Airbrake hook to report errors that have Error severity or above to
// an exception tracker. You can create custom hooks, see the Hooks section.
log.AddHook(&logrus_airbrake.AirbrakeHook{})
// Output to stderr instead of stdout, could also be a file.
log.SetOutput(os.Stderr)
// Only log the warning severity or above.
log.SetLevel(log.WarnLevel)
}
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(log.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(log.Fields{
"omg": true,
"number": 100,
}).Fatal("The ice breaks!")
}
```
For more advanced usage such as logging to multiple locations from the same
application, you can also create an instance of the `logrus` Logger:
```go
package main
import (
"github.com/Sirupsen/logrus"
)
// Create a new instance of the logger. You can have any number of instances.
var log = logrus.New()
func main() {
// The API for setting attributes is a little different than the package level
// exported logger. See Godoc.
log.Out = os.Stderr
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
}
```
#### Fields
Logrus encourages careful, structured logging though logging fields instead of
long, unparseable error messages. For example, instead of: `log.Fatalf("Failed
to send event %s to topic %s with key %d")`, you should log the much more
discoverable:
```go
log.WithFields(log.Fields{
"event": event,
"topic": topic,
"key": key,
}).Fatal("Failed to send event")
```
We've found this API forces you to think about logging in a way that produces
much more useful logging messages. We've been in countless situations where just
a single added field to a log statement that was already there would've saved us
hours. The `WithFields` call is optional.
In general, with Logrus using any of the `printf`-family functions should be
seen as a hint you should add a field, however, you can still use the
`printf`-family functions with Logrus.
#### Hooks
You can add hooks for logging levels. For example to send errors to an exception
tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to
multiple places simultaneously, e.g. syslog.
```go
// Not the real implementation of the Airbrake hook. Just a simple sample.
import (
log "github.com/Sirupsen/logrus"
)
func init() {
log.AddHook(new(AirbrakeHook))
}
type AirbrakeHook struct{}
// `Fire()` takes the entry that the hook is fired for. `entry.Data[]` contains
// the fields for the entry. See the Fields section of the README.
func (hook *AirbrakeHook) Fire(entry *logrus.Entry) error {
err := airbrake.Notify(entry.Data["error"].(error))
if err != nil {
log.WithFields(log.Fields{
"source": "airbrake",
"endpoint": airbrake.Endpoint,
}).Info("Failed to send error to Airbrake")
}
return nil
}
// `Levels()` returns a slice of `Levels` the hook is fired for.
func (hook *AirbrakeHook) Levels() []log.Level {
return []log.Level{
log.ErrorLevel,
log.FatalLevel,
log.PanicLevel,
}
}
```
Logrus comes with built-in hooks. Add those, or your custom hook, in `init`:
```go
import (
log "github.com/Sirupsen/logrus"
"github.com/Sirupsen/logrus/hooks/airbrake"
"github.com/Sirupsen/logrus/hooks/syslog"
"log/syslog"
)
func init() {
log.AddHook(new(logrus_airbrake.AirbrakeHook))
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err != nil {
log.Error("Unable to connect to local syslog daemon")
} else {
log.AddHook(hook)
}
}
```
* [`github.com/Sirupsen/logrus/hooks/airbrake`](https://github.com/Sirupsen/logrus/blob/master/hooks/airbrake/airbrake.go)
Send errors to an exception tracking service compatible with the Airbrake API.
Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes.
* [`github.com/Sirupsen/logrus/hooks/papertrail`](https://github.com/Sirupsen/logrus/blob/master/hooks/papertrail/papertrail.go)
Send errors to the Papertrail hosted logging service via UDP.
* [`github.com/Sirupsen/logrus/hooks/syslog`](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go)
Send errors to remote syslog server.
Uses standard library `log/syslog` behind the scenes.
* [`github.com/nubo/hiprus`](https://github.com/nubo/hiprus)
Send errors to a channel in hipchat.
* [`github.com/sebest/logrusly`](https://github.com/sebest/logrusly)
Send logs to Loggly (https://www.loggly.com/)
* [`github.com/johntdyer/slackrus`](https://github.com/johntdyer/slackrus)
Hook for Slack chat.
#### Level logging
Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic.
```go
log.Debug("Useful debugging information.")
log.Info("Something noteworthy happened!")
log.Warn("You should probably take a look at this.")
log.Error("Something failed but I'm not quitting.")
// Calls os.Exit(1) after logging
log.Fatal("Bye.")
// Calls panic() after logging
log.Panic("I'm bailing.")
```
You can set the logging level on a `Logger`, then it will only log entries with
that severity or anything above it:
```go
// Will log anything that is info or above (warn, error, fatal, panic). Default.
log.SetLevel(log.InfoLevel)
```
It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose
environment if your application has that.
#### Entries
Besides the fields added with `WithField` or `WithFields` some fields are
automatically added to all logging events:
1. `time`. The timestamp when the entry was created.
2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after
the `AddFields` call. E.g. `Failed to send event.`
3. `level`. The logging level. E.g. `info`.
#### Environments
Logrus has no notion of environment.
If you wish for hooks and formatters to only be used in specific environments,
you should handle that yourself. For example, if your application has a global
variable `Environment`, which is a string representation of the environment you
could do:
```go
import (
log "github.com/Sirupsen/logrus"
)
init() {
// do something here to set environment depending on an environment variable
// or command-line flag
if Environment == "production" {
log.SetFormatter(logrus.JSONFormatter)
} else {
// The TextFormatter is default, you don't actually have to do this.
log.SetFormatter(logrus.TextFormatter)
}
}
```
This configuration is how `logrus` was intended to be used, but JSON in
production is mostly only useful if you do log aggregation with tools like
Splunk or Logstash.
#### Formatters
The built-in logging formatters are:
* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise
without colors.
* *Note:* to force colored output when there is no TTY, set the `ForceColors`
field to `true`. To force no colored output even if there is a TTY set the
`DisableColors` field to `true`
* `logrus.JSONFormatter`. Logs fields as JSON.
Third party logging formatters:
* [`zalgo`](https://github.com/aybabtme/logzalgo): invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦.
You can define your formatter by implementing the `Formatter` interface,
requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a
`Fields` type (`map[string]interface{}`) with all your fields as well as the
default ones (see Entries section above):
```go
type MyJSONFormatter struct {
}
log.SetFormatter(new(MyJSONFormatter))
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
// Note this doesn't include Time, Level and Message which are available on
// the Entry. Consult `godoc` on information about those fields or read the
// source of the official loggers.
serialized, err := json.Marshal(entry.Data)
if err != nil {
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
}
return append(serialized, '\n'), nil
}
```
#### Logger as an `io.Writer`
Logrus can be transormed into an `io.Writer`. That writer is the end of an `io.Pipe` and it is your responsability to close it.
```go
w := logger.Writer()
defer w.Close()
srv := http.Server{
// create a stdlib log.Logger that writes to
// logrus.Logger.
ErrorLog: log.New(w, "", 0),
}
```
Each line written to that writer will be printed the usual way, using formatters
and hooks. The level for those entries is `info`.
#### Rotation
Log rotation is not provided with Logrus. Log rotation should be done by an
external program (like `logrotated(8)`) that can compress and delete old log
entries. It should not be a feature of the application-level logger.
[godoc]: https://godoc.org/github.com/Sirupsen/logrus

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package logrus
import (
"bytes"
"fmt"
"io"
"os"
"time"
)
// An entry is the final or intermediate Logrus logging entry. It contains all
// the fields passed with WithField{,s}. It's finally logged when Debug, Info,
// Warn, Error, Fatal or Panic is called on it. These objects can be reused and
// passed around as much as you wish to avoid field duplication.
type Entry struct {
Logger *Logger
// Contains all the fields set by the user.
Data Fields
// Time at which the log entry was created
Time time.Time
// Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic
Level Level
// Message passed to Debug, Info, Warn, Error, Fatal or Panic
Message string
}
func NewEntry(logger *Logger) *Entry {
return &Entry{
Logger: logger,
// Default is three fields, give a little extra room
Data: make(Fields, 5),
}
}
// Returns a reader for the entry, which is a proxy to the formatter.
func (entry *Entry) Reader() (*bytes.Buffer, error) {
serialized, err := entry.Logger.Formatter.Format(entry)
return bytes.NewBuffer(serialized), err
}
// Returns the string representation from the reader and ultimately the
// formatter.
func (entry *Entry) String() (string, error) {
reader, err := entry.Reader()
if err != nil {
return "", err
}
return reader.String(), err
}
// Add a single field to the Entry.
func (entry *Entry) WithField(key string, value interface{}) *Entry {
return entry.WithFields(Fields{key: value})
}
// Add a map of fields to the Entry.
func (entry *Entry) WithFields(fields Fields) *Entry {
data := Fields{}
for k, v := range entry.Data {
data[k] = v
}
for k, v := range fields {
data[k] = v
}
return &Entry{Logger: entry.Logger, Data: data}
}
func (entry *Entry) log(level Level, msg string) {
entry.Time = time.Now()
entry.Level = level
entry.Message = msg
if err := entry.Logger.Hooks.Fire(level, entry); err != nil {
entry.Logger.mu.Lock()
fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
entry.Logger.mu.Unlock()
}
reader, err := entry.Reader()
if err != nil {
entry.Logger.mu.Lock()
fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
entry.Logger.mu.Unlock()
}
entry.Logger.mu.Lock()
defer entry.Logger.mu.Unlock()
_, err = io.Copy(entry.Logger.Out, reader)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
}
// To avoid Entry#log() returning a value that only would make sense for
// panic() to use in Entry#Panic(), we avoid the allocation by checking
// directly here.
if level <= PanicLevel {
panic(entry)
}
}
func (entry *Entry) Debug(args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
entry.log(DebugLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Print(args ...interface{}) {
entry.Info(args...)
}
func (entry *Entry) Info(args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
entry.log(InfoLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Warn(args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
entry.log(WarnLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Warning(args ...interface{}) {
entry.Warn(args...)
}
func (entry *Entry) Error(args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
entry.log(ErrorLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Fatal(args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
entry.log(FatalLevel, fmt.Sprint(args...))
}
os.Exit(1)
}
func (entry *Entry) Panic(args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
entry.log(PanicLevel, fmt.Sprint(args...))
}
panic(fmt.Sprint(args...))
}
// Entry Printf family functions
func (entry *Entry) Debugf(format string, args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
entry.Debug(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Infof(format string, args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
entry.Info(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Printf(format string, args ...interface{}) {
entry.Infof(format, args...)
}
func (entry *Entry) Warnf(format string, args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
entry.Warn(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Warningf(format string, args ...interface{}) {
entry.Warnf(format, args...)
}
func (entry *Entry) Errorf(format string, args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
entry.Error(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Fatalf(format string, args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
entry.Fatal(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Panicf(format string, args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
entry.Panic(fmt.Sprintf(format, args...))
}
}
// Entry Println family functions
func (entry *Entry) Debugln(args ...interface{}) {
if entry.Logger.Level >= DebugLevel {
entry.Debug(entry.sprintlnn(args...))
}
}
func (entry *Entry) Infoln(args ...interface{}) {
if entry.Logger.Level >= InfoLevel {
entry.Info(entry.sprintlnn(args...))
}
}
func (entry *Entry) Println(args ...interface{}) {
entry.Infoln(args...)
}
func (entry *Entry) Warnln(args ...interface{}) {
if entry.Logger.Level >= WarnLevel {
entry.Warn(entry.sprintlnn(args...))
}
}
func (entry *Entry) Warningln(args ...interface{}) {
entry.Warnln(args...)
}
func (entry *Entry) Errorln(args ...interface{}) {
if entry.Logger.Level >= ErrorLevel {
entry.Error(entry.sprintlnn(args...))
}
}
func (entry *Entry) Fatalln(args ...interface{}) {
if entry.Logger.Level >= FatalLevel {
entry.Fatal(entry.sprintlnn(args...))
}
}
func (entry *Entry) Panicln(args ...interface{}) {
if entry.Logger.Level >= PanicLevel {
entry.Panic(entry.sprintlnn(args...))
}
}
// Sprintlnn => Sprint no newline. This is to get the behavior of how
// fmt.Sprintln where spaces are always added between operands, regardless of
// their type. Instead of vendoring the Sprintln implementation to spare a
// string allocation, we do the simplest thing.
func (entry *Entry) sprintlnn(args ...interface{}) string {
msg := fmt.Sprintln(args...)
return msg[:len(msg)-1]
}

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package logrus
import (
"bytes"
"fmt"
"testing"
"github.com/stretchr/testify/assert"
)
func TestEntryPanicln(t *testing.T) {
errBoom := fmt.Errorf("boom time")
defer func() {
p := recover()
assert.NotNil(t, p)
switch pVal := p.(type) {
case *Entry:
assert.Equal(t, "kaboom", pVal.Message)
assert.Equal(t, errBoom, pVal.Data["err"])
default:
t.Fatalf("want type *Entry, got %T: %#v", pVal, pVal)
}
}()
logger := New()
logger.Out = &bytes.Buffer{}
entry := NewEntry(logger)
entry.WithField("err", errBoom).Panicln("kaboom")
}
func TestEntryPanicf(t *testing.T) {
errBoom := fmt.Errorf("boom again")
defer func() {
p := recover()
assert.NotNil(t, p)
switch pVal := p.(type) {
case *Entry:
assert.Equal(t, "kaboom true", pVal.Message)
assert.Equal(t, errBoom, pVal.Data["err"])
default:
t.Fatalf("want type *Entry, got %T: %#v", pVal, pVal)
}
}()
logger := New()
logger.Out = &bytes.Buffer{}
entry := NewEntry(logger)
entry.WithField("err", errBoom).Panicf("kaboom %v", true)
}

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package main
import (
"github.com/Sirupsen/logrus"
)
var log = logrus.New()
func init() {
log.Formatter = new(logrus.JSONFormatter)
log.Formatter = new(logrus.TextFormatter) // default
}
func main() {
defer func() {
err := recover()
if err != nil {
log.WithFields(logrus.Fields{
"omg": true,
"err": err,
"number": 100,
}).Fatal("The ice breaks!")
}
}()
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(logrus.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(logrus.Fields{
"animal": "orca",
"size": 9009,
}).Panic("It's over 9000!")
}

35
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package main
import (
"github.com/Sirupsen/logrus"
"github.com/Sirupsen/logrus/hooks/airbrake"
"github.com/tobi/airbrake-go"
)
var log = logrus.New()
func init() {
log.Formatter = new(logrus.TextFormatter) // default
log.Hooks.Add(new(logrus_airbrake.AirbrakeHook))
}
func main() {
airbrake.Endpoint = "https://exceptions.whatever.com/notifier_api/v2/notices.xml"
airbrake.ApiKey = "whatever"
airbrake.Environment = "production"
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(logrus.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(logrus.Fields{
"omg": true,
"number": 100,
}).Fatal("The ice breaks!")
}

186
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/exported.go generated vendored Normal file
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package logrus
import (
"io"
)
var (
// std is the name of the standard logger in stdlib `log`
std = New()
)
func StandardLogger() *Logger {
return std
}
// SetOutput sets the standard logger output.
func SetOutput(out io.Writer) {
std.mu.Lock()
defer std.mu.Unlock()
std.Out = out
}
// SetFormatter sets the standard logger formatter.
func SetFormatter(formatter Formatter) {
std.mu.Lock()
defer std.mu.Unlock()
std.Formatter = formatter
}
// SetLevel sets the standard logger level.
func SetLevel(level Level) {
std.mu.Lock()
defer std.mu.Unlock()
std.Level = level
}
// GetLevel returns the standard logger level.
func GetLevel() Level {
return std.Level
}
// AddHook adds a hook to the standard logger hooks.
func AddHook(hook Hook) {
std.mu.Lock()
defer std.mu.Unlock()
std.Hooks.Add(hook)
}
// WithField creates an entry from the standard logger and adds a field to
// it. If you want multiple fields, use `WithFields`.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithField(key string, value interface{}) *Entry {
return std.WithField(key, value)
}
// WithFields creates an entry from the standard logger and adds multiple
// fields to it. This is simply a helper for `WithField`, invoking it
// once for each field.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithFields(fields Fields) *Entry {
return std.WithFields(fields)
}
// Debug logs a message at level Debug on the standard logger.
func Debug(args ...interface{}) {
std.Debug(args...)
}
// Print logs a message at level Info on the standard logger.
func Print(args ...interface{}) {
std.Print(args...)
}
// Info logs a message at level Info on the standard logger.
func Info(args ...interface{}) {
std.Info(args...)
}
// Warn logs a message at level Warn on the standard logger.
func Warn(args ...interface{}) {
std.Warn(args...)
}
// Warning logs a message at level Warn on the standard logger.
func Warning(args ...interface{}) {
std.Warning(args...)
}
// Error logs a message at level Error on the standard logger.
func Error(args ...interface{}) {
std.Error(args...)
}
// Panic logs a message at level Panic on the standard logger.
func Panic(args ...interface{}) {
std.Panic(args...)
}
// Fatal logs a message at level Fatal on the standard logger.
func Fatal(args ...interface{}) {
std.Fatal(args...)
}
// Debugf logs a message at level Debug on the standard logger.
func Debugf(format string, args ...interface{}) {
std.Debugf(format, args...)
}
// Printf logs a message at level Info on the standard logger.
func Printf(format string, args ...interface{}) {
std.Printf(format, args...)
}
// Infof logs a message at level Info on the standard logger.
func Infof(format string, args ...interface{}) {
std.Infof(format, args...)
}
// Warnf logs a message at level Warn on the standard logger.
func Warnf(format string, args ...interface{}) {
std.Warnf(format, args...)
}
// Warningf logs a message at level Warn on the standard logger.
func Warningf(format string, args ...interface{}) {
std.Warningf(format, args...)
}
// Errorf logs a message at level Error on the standard logger.
func Errorf(format string, args ...interface{}) {
std.Errorf(format, args...)
}
// Panicf logs a message at level Panic on the standard logger.
func Panicf(format string, args ...interface{}) {
std.Panicf(format, args...)
}
// Fatalf logs a message at level Fatal on the standard logger.
func Fatalf(format string, args ...interface{}) {
std.Fatalf(format, args...)
}
// Debugln logs a message at level Debug on the standard logger.
func Debugln(args ...interface{}) {
std.Debugln(args...)
}
// Println logs a message at level Info on the standard logger.
func Println(args ...interface{}) {
std.Println(args...)
}
// Infoln logs a message at level Info on the standard logger.
func Infoln(args ...interface{}) {
std.Infoln(args...)
}
// Warnln logs a message at level Warn on the standard logger.
func Warnln(args ...interface{}) {
std.Warnln(args...)
}
// Warningln logs a message at level Warn on the standard logger.
func Warningln(args ...interface{}) {
std.Warningln(args...)
}
// Errorln logs a message at level Error on the standard logger.
func Errorln(args ...interface{}) {
std.Errorln(args...)
}
// Panicln logs a message at level Panic on the standard logger.
func Panicln(args ...interface{}) {
std.Panicln(args...)
}
// Fatalln logs a message at level Fatal on the standard logger.
func Fatalln(args ...interface{}) {
std.Fatalln(args...)
}

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package logrus
// The Formatter interface is used to implement a custom Formatter. It takes an
// `Entry`. It exposes all the fields, including the default ones:
//
// * `entry.Data["msg"]`. The message passed from Info, Warn, Error ..
// * `entry.Data["time"]`. The timestamp.
// * `entry.Data["level"]. The level the entry was logged at.
//
// Any additional fields added with `WithField` or `WithFields` are also in
// `entry.Data`. Format is expected to return an array of bytes which are then
// logged to `logger.Out`.
type Formatter interface {
Format(*Entry) ([]byte, error)
}
// This is to not silently overwrite `time`, `msg` and `level` fields when
// dumping it. If this code wasn't there doing:
//
// logrus.WithField("level", 1).Info("hello")
//
// Would just silently drop the user provided level. Instead with this code
// it'll logged as:
//
// {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."}
//
// It's not exported because it's still using Data in an opinionated way. It's to
// avoid code duplication between the two default formatters.
func prefixFieldClashes(data Fields) {
_, ok := data["time"]
if ok {
data["fields.time"] = data["time"]
}
_, ok = data["msg"]
if ok {
data["fields.msg"] = data["msg"]
}
_, ok = data["level"]
if ok {
data["fields.level"] = data["level"]
}
}

88
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package logrus
import (
"testing"
"time"
)
// smallFields is a small size data set for benchmarking
var smallFields = Fields{
"foo": "bar",
"baz": "qux",
"one": "two",
"three": "four",
}
// largeFields is a large size data set for benchmarking
var largeFields = Fields{
"foo": "bar",
"baz": "qux",
"one": "two",
"three": "four",
"five": "six",
"seven": "eight",
"nine": "ten",
"eleven": "twelve",
"thirteen": "fourteen",
"fifteen": "sixteen",
"seventeen": "eighteen",
"nineteen": "twenty",
"a": "b",
"c": "d",
"e": "f",
"g": "h",
"i": "j",
"k": "l",
"m": "n",
"o": "p",
"q": "r",
"s": "t",
"u": "v",
"w": "x",
"y": "z",
"this": "will",
"make": "thirty",
"entries": "yeah",
}
func BenchmarkSmallTextFormatter(b *testing.B) {
doBenchmark(b, &TextFormatter{DisableColors: true}, smallFields)
}
func BenchmarkLargeTextFormatter(b *testing.B) {
doBenchmark(b, &TextFormatter{DisableColors: true}, largeFields)
}
func BenchmarkSmallColoredTextFormatter(b *testing.B) {
doBenchmark(b, &TextFormatter{ForceColors: true}, smallFields)
}
func BenchmarkLargeColoredTextFormatter(b *testing.B) {
doBenchmark(b, &TextFormatter{ForceColors: true}, largeFields)
}
func BenchmarkSmallJSONFormatter(b *testing.B) {
doBenchmark(b, &JSONFormatter{}, smallFields)
}
func BenchmarkLargeJSONFormatter(b *testing.B) {
doBenchmark(b, &JSONFormatter{}, largeFields)
}
func doBenchmark(b *testing.B, formatter Formatter, fields Fields) {
entry := &Entry{
Time: time.Time{},
Level: InfoLevel,
Message: "message",
Data: fields,
}
var d []byte
var err error
for i := 0; i < b.N; i++ {
d, err = formatter.Format(entry)
if err != nil {
b.Fatal(err)
}
b.SetBytes(int64(len(d)))
}
}

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package logrus
import (
"testing"
"github.com/stretchr/testify/assert"
)
type TestHook struct {
Fired bool
}
func (hook *TestHook) Fire(entry *Entry) error {
hook.Fired = true
return nil
}
func (hook *TestHook) Levels() []Level {
return []Level{
DebugLevel,
InfoLevel,
WarnLevel,
ErrorLevel,
FatalLevel,
PanicLevel,
}
}
func TestHookFires(t *testing.T) {
hook := new(TestHook)
LogAndAssertJSON(t, func(log *Logger) {
log.Hooks.Add(hook)
assert.Equal(t, hook.Fired, false)
log.Print("test")
}, func(fields Fields) {
assert.Equal(t, hook.Fired, true)
})
}
type ModifyHook struct {
}
func (hook *ModifyHook) Fire(entry *Entry) error {
entry.Data["wow"] = "whale"
return nil
}
func (hook *ModifyHook) Levels() []Level {
return []Level{
DebugLevel,
InfoLevel,
WarnLevel,
ErrorLevel,
FatalLevel,
PanicLevel,
}
}
func TestHookCanModifyEntry(t *testing.T) {
hook := new(ModifyHook)
LogAndAssertJSON(t, func(log *Logger) {
log.Hooks.Add(hook)
log.WithField("wow", "elephant").Print("test")
}, func(fields Fields) {
assert.Equal(t, fields["wow"], "whale")
})
}
func TestCanFireMultipleHooks(t *testing.T) {
hook1 := new(ModifyHook)
hook2 := new(TestHook)
LogAndAssertJSON(t, func(log *Logger) {
log.Hooks.Add(hook1)
log.Hooks.Add(hook2)
log.WithField("wow", "elephant").Print("test")
}, func(fields Fields) {
assert.Equal(t, fields["wow"], "whale")
assert.Equal(t, hook2.Fired, true)
})
}
type ErrorHook struct {
Fired bool
}
func (hook *ErrorHook) Fire(entry *Entry) error {
hook.Fired = true
return nil
}
func (hook *ErrorHook) Levels() []Level {
return []Level{
ErrorLevel,
}
}
func TestErrorHookShouldntFireOnInfo(t *testing.T) {
hook := new(ErrorHook)
LogAndAssertJSON(t, func(log *Logger) {
log.Hooks.Add(hook)
log.Info("test")
}, func(fields Fields) {
assert.Equal(t, hook.Fired, false)
})
}
func TestErrorHookShouldFireOnError(t *testing.T) {
hook := new(ErrorHook)
LogAndAssertJSON(t, func(log *Logger) {
log.Hooks.Add(hook)
log.Error("test")
}, func(fields Fields) {
assert.Equal(t, hook.Fired, true)
})
}

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package logrus
// A hook to be fired when logging on the logging levels returned from
// `Levels()` on your implementation of the interface. Note that this is not
// fired in a goroutine or a channel with workers, you should handle such
// functionality yourself if your call is non-blocking and you don't wish for
// the logging calls for levels returned from `Levels()` to block.
type Hook interface {
Levels() []Level
Fire(*Entry) error
}
// Internal type for storing the hooks on a logger instance.
type levelHooks map[Level][]Hook
// Add a hook to an instance of logger. This is called with
// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface.
func (hooks levelHooks) Add(hook Hook) {
for _, level := range hook.Levels() {
hooks[level] = append(hooks[level], hook)
}
}
// Fire all the hooks for the passed level. Used by `entry.log` to fire
// appropriate hooks for a log entry.
func (hooks levelHooks) Fire(level Level, entry *Entry) error {
for _, hook := range hooks[level] {
if err := hook.Fire(entry); err != nil {
return err
}
}
return nil
}

54
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/airbrake/airbrake.go generated vendored Normal file
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package logrus_airbrake
import (
"github.com/Sirupsen/logrus"
"github.com/tobi/airbrake-go"
)
// AirbrakeHook to send exceptions to an exception-tracking service compatible
// with the Airbrake API. You must set:
// * airbrake.Endpoint
// * airbrake.ApiKey
// * airbrake.Environment (only sends exceptions when set to "production")
//
// Before using this hook, to send an error. Entries that trigger an Error,
// Fatal or Panic should now include an "error" field to send to Airbrake.
type AirbrakeHook struct{}
func (hook *AirbrakeHook) Fire(entry *logrus.Entry) error {
if entry.Data["error"] == nil {
entry.Logger.WithFields(logrus.Fields{
"source": "airbrake",
"endpoint": airbrake.Endpoint,
}).Warn("Exceptions sent to Airbrake must have an 'error' key with the error")
return nil
}
err, ok := entry.Data["error"].(error)
if !ok {
entry.Logger.WithFields(logrus.Fields{
"source": "airbrake",
"endpoint": airbrake.Endpoint,
}).Warn("Exceptions sent to Airbrake must have an `error` key of type `error`")
return nil
}
airErr := airbrake.Notify(err)
if airErr != nil {
entry.Logger.WithFields(logrus.Fields{
"source": "airbrake",
"endpoint": airbrake.Endpoint,
"error": airErr,
}).Warn("Failed to send error to Airbrake")
}
return nil
}
func (hook *AirbrakeHook) Levels() []logrus.Level {
return []logrus.Level{
logrus.ErrorLevel,
logrus.FatalLevel,
logrus.PanicLevel,
}
}

28
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/papertrail/README.md generated vendored Normal file
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# Papertrail Hook for Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:" />
[Papertrail](https://papertrailapp.com) provides hosted log management. Once stored in Papertrail, you can [group](http://help.papertrailapp.com/kb/how-it-works/groups/) your logs on various dimensions, [search](http://help.papertrailapp.com/kb/how-it-works/search-syntax) them, and trigger [alerts](http://help.papertrailapp.com/kb/how-it-works/alerts).
In most deployments, you'll want to send logs to Papertrail via their [remote_syslog](http://help.papertrailapp.com/kb/configuration/configuring-centralized-logging-from-text-log-files-in-unix/) daemon, which requires no application-specific configuration. This hook is intended for relatively low-volume logging, likely in managed cloud hosting deployments where installing `remote_syslog` is not possible.
## Usage
You can find your Papertrail UDP port on your [Papertrail account page](https://papertrailapp.com/account/destinations). Substitute it below for `YOUR_PAPERTRAIL_UDP_PORT`.
For `YOUR_APP_NAME`, substitute a short string that will readily identify your application or service in the logs.
```go
import (
"log/syslog"
"github.com/Sirupsen/logrus"
"github.com/Sirupsen/logrus/hooks/papertrail"
)
func main() {
log := logrus.New()
hook, err := logrus_papertrail.NewPapertrailHook("logs.papertrailapp.com", YOUR_PAPERTRAIL_UDP_PORT, YOUR_APP_NAME)
if err == nil {
log.Hooks.Add(hook)
}
}
```

55
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/papertrail/papertrail.go generated vendored Normal file
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package logrus_papertrail
import (
"fmt"
"net"
"os"
"time"
"github.com/Sirupsen/logrus"
)
const (
format = "Jan 2 15:04:05"
)
// PapertrailHook to send logs to a logging service compatible with the Papertrail API.
type PapertrailHook struct {
Host string
Port int
AppName string
UDPConn net.Conn
}
// NewPapertrailHook creates a hook to be added to an instance of logger.
func NewPapertrailHook(host string, port int, appName string) (*PapertrailHook, error) {
conn, err := net.Dial("udp", fmt.Sprintf("%s:%d", host, port))
return &PapertrailHook{host, port, appName, conn}, err
}
// Fire is called when a log event is fired.
func (hook *PapertrailHook) Fire(entry *logrus.Entry) error {
date := time.Now().Format(format)
msg, _ := entry.String()
payload := fmt.Sprintf("<22> %s %s: %s", date, hook.AppName, msg)
bytesWritten, err := hook.UDPConn.Write([]byte(payload))
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to send log line to Papertrail via UDP. Wrote %d bytes before error: %v", bytesWritten, err)
return err
}
return nil
}
// Levels returns the available logging levels.
func (hook *PapertrailHook) Levels() []logrus.Level {
return []logrus.Level{
logrus.PanicLevel,
logrus.FatalLevel,
logrus.ErrorLevel,
logrus.WarnLevel,
logrus.InfoLevel,
logrus.DebugLevel,
}
}

26
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/papertrail/papertrail_test.go generated vendored Normal file
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package logrus_papertrail
import (
"fmt"
"testing"
"github.com/Sirupsen/logrus"
"github.com/stvp/go-udp-testing"
)
func TestWritingToUDP(t *testing.T) {
port := 16661
udp.SetAddr(fmt.Sprintf(":%d", port))
hook, err := NewPapertrailHook("localhost", port, "test")
if err != nil {
t.Errorf("Unable to connect to local UDP server.")
}
log := logrus.New()
log.Hooks.Add(hook)
udp.ShouldReceive(t, "foo", func() {
log.Info("foo")
})
}

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# Sentry Hook for Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:" />
[Sentry](https://getsentry.com) provides both self-hosted and hosted
solutions for exception tracking.
Both client and server are
[open source](https://github.com/getsentry/sentry).
## Usage
Every sentry application defined on the server gets a different
[DSN](https://www.getsentry.com/docs/). In the example below replace
`YOUR_DSN` with the one created for your application.
```go
import (
"github.com/Sirupsen/logrus"
"github.com/Sirupsen/logrus/hooks/sentry"
)
func main() {
log := logrus.New()
hook, err := logrus_sentry.NewSentryHook(YOUR_DSN, []logrus.Level{
logrus.PanicLevel,
logrus.FatalLevel,
logrus.ErrorLevel,
})
if err == nil {
log.Hooks.Add(hook)
}
}
```
## Special fields
Some logrus fields have a special meaning in this hook,
these are server_name and logger.
When logs are sent to sentry these fields are treated differently.
- server_name (also known as hostname) is the name of the server which
is logging the event (hostname.example.com)
- logger is the part of the application which is logging the event.
In go this usually means setting it to the name of the package.
## Timeout
`Timeout` is the time the sentry hook will wait for a response
from the sentry server.
If this time elapses with no response from
the server an error will be returned.
If `Timeout` is set to 0 the SentryHook will not wait for a reply
and will assume a correct delivery.
The SentryHook has a default timeout of `100 milliseconds` when created
with a call to `NewSentryHook`. This can be changed by assigning a value to the `Timeout` field:
```go
hook, _ := logrus_sentry.NewSentryHook(...)
hook.Timeout = 20*time.Seconds
```

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package logrus_sentry
import (
"fmt"
"time"
"github.com/Sirupsen/logrus"
"github.com/getsentry/raven-go"
)
var (
severityMap = map[logrus.Level]raven.Severity{
logrus.DebugLevel: raven.DEBUG,
logrus.InfoLevel: raven.INFO,
logrus.WarnLevel: raven.WARNING,
logrus.ErrorLevel: raven.ERROR,
logrus.FatalLevel: raven.FATAL,
logrus.PanicLevel: raven.FATAL,
}
)
func getAndDel(d logrus.Fields, key string) (string, bool) {
var (
ok bool
v interface{}
val string
)
if v, ok = d[key]; !ok {
return "", false
}
if val, ok = v.(string); !ok {
return "", false
}
delete(d, key)
return val, true
}
// SentryHook delivers logs to a sentry server.
type SentryHook struct {
// Timeout sets the time to wait for a delivery error from the sentry server.
// If this is set to zero the server will not wait for any response and will
// consider the message correctly sent
Timeout time.Duration
client *raven.Client
levels []logrus.Level
}
// NewSentryHook creates a hook to be added to an instance of logger
// and initializes the raven client.
// This method sets the timeout to 100 milliseconds.
func NewSentryHook(DSN string, levels []logrus.Level) (*SentryHook, error) {
client, err := raven.NewClient(DSN, nil)
if err != nil {
return nil, err
}
return &SentryHook{100 * time.Millisecond, client, levels}, nil
}
// Called when an event should be sent to sentry
// Special fields that sentry uses to give more information to the server
// are extracted from entry.Data (if they are found)
// These fields are: logger and server_name
func (hook *SentryHook) Fire(entry *logrus.Entry) error {
packet := &raven.Packet{
Message: entry.Message,
Timestamp: raven.Timestamp(entry.Time),
Level: severityMap[entry.Level],
Platform: "go",
}
d := entry.Data
if logger, ok := getAndDel(d, "logger"); ok {
packet.Logger = logger
}
if serverName, ok := getAndDel(d, "server_name"); ok {
packet.ServerName = serverName
}
packet.Extra = map[string]interface{}(d)
_, errCh := hook.client.Capture(packet, nil)
timeout := hook.Timeout
if timeout != 0 {
timeoutCh := time.After(timeout)
select {
case err := <-errCh:
return err
case <-timeoutCh:
return fmt.Errorf("no response from sentry server in %s", timeout)
}
}
return nil
}
// Levels returns the available logging levels.
func (hook *SentryHook) Levels() []logrus.Level {
return hook.levels
}

97
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/sentry/sentry_test.go generated vendored Normal file
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package logrus_sentry
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/http/httptest"
"strings"
"testing"
"github.com/Sirupsen/logrus"
"github.com/getsentry/raven-go"
)
const (
message = "error message"
server_name = "testserver.internal"
logger_name = "test.logger"
)
func getTestLogger() *logrus.Logger {
l := logrus.New()
l.Out = ioutil.Discard
return l
}
func WithTestDSN(t *testing.T, tf func(string, <-chan *raven.Packet)) {
pch := make(chan *raven.Packet, 1)
s := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
defer req.Body.Close()
d := json.NewDecoder(req.Body)
p := &raven.Packet{}
err := d.Decode(p)
if err != nil {
t.Fatal(err.Error())
}
pch <- p
}))
defer s.Close()
fragments := strings.SplitN(s.URL, "://", 2)
dsn := fmt.Sprintf(
"%s://public:secret@%s/sentry/project-id",
fragments[0],
fragments[1],
)
tf(dsn, pch)
}
func TestSpecialFields(t *testing.T) {
WithTestDSN(t, func(dsn string, pch <-chan *raven.Packet) {
logger := getTestLogger()
hook, err := NewSentryHook(dsn, []logrus.Level{
logrus.ErrorLevel,
})
if err != nil {
t.Fatal(err.Error())
}
logger.Hooks.Add(hook)
logger.WithFields(logrus.Fields{
"server_name": server_name,
"logger": logger_name,
}).Error(message)
packet := <-pch
if packet.Logger != logger_name {
t.Errorf("logger should have been %s, was %s", logger_name, packet.Logger)
}
if packet.ServerName != server_name {
t.Errorf("server_name should have been %s, was %s", server_name, packet.ServerName)
}
})
}
func TestSentryHandler(t *testing.T) {
WithTestDSN(t, func(dsn string, pch <-chan *raven.Packet) {
logger := getTestLogger()
hook, err := NewSentryHook(dsn, []logrus.Level{
logrus.ErrorLevel,
})
if err != nil {
t.Fatal(err.Error())
}
logger.Hooks.Add(hook)
logger.Error(message)
packet := <-pch
if packet.Message != message {
t.Errorf("message should have been %s, was %s", message, packet.Message)
}
})
}

20
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/syslog/README.md generated vendored Normal file
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# Syslog Hooks for Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/>
## Usage
```go
import (
"log/syslog"
"github.com/Sirupsen/logrus"
logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
)
func main() {
log := logrus.New()
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err == nil {
log.Hooks.Add(hook)
}
}
```

59
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/syslog/syslog.go generated vendored Normal file
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package logrus_syslog
import (
"fmt"
"github.com/Sirupsen/logrus"
"log/syslog"
"os"
)
// SyslogHook to send logs via syslog.
type SyslogHook struct {
Writer *syslog.Writer
SyslogNetwork string
SyslogRaddr string
}
// Creates a hook to be added to an instance of logger. This is called with
// `hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_DEBUG, "")`
// `if err == nil { log.Hooks.Add(hook) }`
func NewSyslogHook(network, raddr string, priority syslog.Priority, tag string) (*SyslogHook, error) {
w, err := syslog.Dial(network, raddr, priority, tag)
return &SyslogHook{w, network, raddr}, err
}
func (hook *SyslogHook) Fire(entry *logrus.Entry) error {
line, err := entry.String()
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err)
return err
}
switch entry.Level {
case logrus.PanicLevel:
return hook.Writer.Crit(line)
case logrus.FatalLevel:
return hook.Writer.Crit(line)
case logrus.ErrorLevel:
return hook.Writer.Err(line)
case logrus.WarnLevel:
return hook.Writer.Warning(line)
case logrus.InfoLevel:
return hook.Writer.Info(line)
case logrus.DebugLevel:
return hook.Writer.Debug(line)
default:
return nil
}
}
func (hook *SyslogHook) Levels() []logrus.Level {
return []logrus.Level{
logrus.PanicLevel,
logrus.FatalLevel,
logrus.ErrorLevel,
logrus.WarnLevel,
logrus.InfoLevel,
logrus.DebugLevel,
}
}

26
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/syslog/syslog_test.go generated vendored Normal file
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@ -0,0 +1,26 @@
package logrus_syslog
import (
"github.com/Sirupsen/logrus"
"log/syslog"
"testing"
)
func TestLocalhostAddAndPrint(t *testing.T) {
log := logrus.New()
hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err != nil {
t.Errorf("Unable to connect to local syslog.")
}
log.Hooks.Add(hook)
for _, level := range hook.Levels() {
if len(log.Hooks[level]) != 1 {
t.Errorf("SyslogHook was not added. The length of log.Hooks[%v]: %v", level, len(log.Hooks[level]))
}
}
log.Info("Congratulations!")
}

26
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/json_formatter.go generated vendored Normal file
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package logrus
import (
"encoding/json"
"fmt"
"time"
)
type JSONFormatter struct{}
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
data := make(Fields, len(entry.Data)+3)
for k, v := range entry.Data {
data[k] = v
}
prefixFieldClashes(data)
data["time"] = entry.Time.Format(time.RFC3339)
data["msg"] = entry.Message
data["level"] = entry.Level.String()
serialized, err := json.Marshal(data)
if err != nil {
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
}
return append(serialized, '\n'), nil
}

161
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/logger.go generated vendored Normal file
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package logrus
import (
"io"
"os"
"sync"
)
type Logger struct {
// The logs are `io.Copy`'d to this in a mutex. It's common to set this to a
// file, or leave it default which is `os.Stdout`. You can also set this to
// something more adventorous, such as logging to Kafka.
Out io.Writer
// Hooks for the logger instance. These allow firing events based on logging
// levels and log entries. For example, to send errors to an error tracking
// service, log to StatsD or dump the core on fatal errors.
Hooks levelHooks
// All log entries pass through the formatter before logged to Out. The
// included formatters are `TextFormatter` and `JSONFormatter` for which
// TextFormatter is the default. In development (when a TTY is attached) it
// logs with colors, but to a file it wouldn't. You can easily implement your
// own that implements the `Formatter` interface, see the `README` or included
// formatters for examples.
Formatter Formatter
// The logging level the logger should log at. This is typically (and defaults
// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
// logged. `logrus.Debug` is useful in
Level Level
// Used to sync writing to the log.
mu sync.Mutex
}
// Creates a new logger. Configuration should be set by changing `Formatter`,
// `Out` and `Hooks` directly on the default logger instance. You can also just
// instantiate your own:
//
// var log = &Logger{
// Out: os.Stderr,
// Formatter: new(JSONFormatter),
// Hooks: make(levelHooks),
// Level: logrus.DebugLevel,
// }
//
// It's recommended to make this a global instance called `log`.
func New() *Logger {
return &Logger{
Out: os.Stdout,
Formatter: new(TextFormatter),
Hooks: make(levelHooks),
Level: InfoLevel,
}
}
// Adds a field to the log entry, note that you it doesn't log until you call
// Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
// Ff you want multiple fields, use `WithFields`.
func (logger *Logger) WithField(key string, value interface{}) *Entry {
return NewEntry(logger).WithField(key, value)
}
// Adds a struct of fields to the log entry. All it does is call `WithField` for
// each `Field`.
func (logger *Logger) WithFields(fields Fields) *Entry {
return NewEntry(logger).WithFields(fields)
}
func (logger *Logger) Debugf(format string, args ...interface{}) {
NewEntry(logger).Debugf(format, args...)
}
func (logger *Logger) Infof(format string, args ...interface{}) {
NewEntry(logger).Infof(format, args...)
}
func (logger *Logger) Printf(format string, args ...interface{}) {
NewEntry(logger).Printf(format, args...)
}
func (logger *Logger) Warnf(format string, args ...interface{}) {
NewEntry(logger).Warnf(format, args...)
}
func (logger *Logger) Warningf(format string, args ...interface{}) {
NewEntry(logger).Warnf(format, args...)
}
func (logger *Logger) Errorf(format string, args ...interface{}) {
NewEntry(logger).Errorf(format, args...)
}
func (logger *Logger) Fatalf(format string, args ...interface{}) {
NewEntry(logger).Fatalf(format, args...)
}
func (logger *Logger) Panicf(format string, args ...interface{}) {
NewEntry(logger).Panicf(format, args...)
}
func (logger *Logger) Debug(args ...interface{}) {
NewEntry(logger).Debug(args...)
}
func (logger *Logger) Info(args ...interface{}) {
NewEntry(logger).Info(args...)
}
func (logger *Logger) Print(args ...interface{}) {
NewEntry(logger).Info(args...)
}
func (logger *Logger) Warn(args ...interface{}) {
NewEntry(logger).Warn(args...)
}
func (logger *Logger) Warning(args ...interface{}) {
NewEntry(logger).Warn(args...)
}
func (logger *Logger) Error(args ...interface{}) {
NewEntry(logger).Error(args...)
}
func (logger *Logger) Fatal(args ...interface{}) {
NewEntry(logger).Fatal(args...)
}
func (logger *Logger) Panic(args ...interface{}) {
NewEntry(logger).Panic(args...)
}
func (logger *Logger) Debugln(args ...interface{}) {
NewEntry(logger).Debugln(args...)
}
func (logger *Logger) Infoln(args ...interface{}) {
NewEntry(logger).Infoln(args...)
}
func (logger *Logger) Println(args ...interface{}) {
NewEntry(logger).Println(args...)
}
func (logger *Logger) Warnln(args ...interface{}) {
NewEntry(logger).Warnln(args...)
}
func (logger *Logger) Warningln(args ...interface{}) {
NewEntry(logger).Warnln(args...)
}
func (logger *Logger) Errorln(args ...interface{}) {
NewEntry(logger).Errorln(args...)
}
func (logger *Logger) Fatalln(args ...interface{}) {
NewEntry(logger).Fatalln(args...)
}
func (logger *Logger) Panicln(args ...interface{}) {
NewEntry(logger).Panicln(args...)
}

94
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/logrus.go generated vendored Normal file
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package logrus
import (
"fmt"
"log"
)
// Fields type, used to pass to `WithFields`.
type Fields map[string]interface{}
// Level type
type Level uint8
// Convert the Level to a string. E.g. PanicLevel becomes "panic".
func (level Level) String() string {
switch level {
case DebugLevel:
return "debug"
case InfoLevel:
return "info"
case WarnLevel:
return "warning"
case ErrorLevel:
return "error"
case FatalLevel:
return "fatal"
case PanicLevel:
return "panic"
}
return "unknown"
}
// ParseLevel takes a string level and returns the Logrus log level constant.
func ParseLevel(lvl string) (Level, error) {
switch lvl {
case "panic":
return PanicLevel, nil
case "fatal":
return FatalLevel, nil
case "error":
return ErrorLevel, nil
case "warn", "warning":
return WarnLevel, nil
case "info":
return InfoLevel, nil
case "debug":
return DebugLevel, nil
}
var l Level
return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
}
// These are the different logging levels. You can set the logging level to log
// on your instance of logger, obtained with `logrus.New()`.
const (
// PanicLevel level, highest level of severity. Logs and then calls panic with the
// message passed to Debug, Info, ...
PanicLevel Level = iota
// FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the
// logging level is set to Panic.
FatalLevel
// ErrorLevel level. Logs. Used for errors that should definitely be noted.
// Commonly used for hooks to send errors to an error tracking service.
ErrorLevel
// WarnLevel level. Non-critical entries that deserve eyes.
WarnLevel
// InfoLevel level. General operational entries about what's going on inside the
// application.
InfoLevel
// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
DebugLevel
)
// Won't compile if StdLogger can't be realized by a log.Logger
var _ StdLogger = &log.Logger{}
// StdLogger is what your logrus-enabled library should take, that way
// it'll accept a stdlib logger and a logrus logger. There's no standard
// interface, this is the closest we get, unfortunately.
type StdLogger interface {
Print(...interface{})
Printf(string, ...interface{})
Println(...interface{})
Fatal(...interface{})
Fatalf(string, ...interface{})
Fatalln(...interface{})
Panic(...interface{})
Panicf(string, ...interface{})
Panicln(...interface{})
}

283
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/logrus_test.go generated vendored Normal file
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package logrus
import (
"bytes"
"encoding/json"
"strconv"
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
func LogAndAssertJSON(t *testing.T, log func(*Logger), assertions func(fields Fields)) {
var buffer bytes.Buffer
var fields Fields
logger := New()
logger.Out = &buffer
logger.Formatter = new(JSONFormatter)
log(logger)
err := json.Unmarshal(buffer.Bytes(), &fields)
assert.Nil(t, err)
assertions(fields)
}
func LogAndAssertText(t *testing.T, log func(*Logger), assertions func(fields map[string]string)) {
var buffer bytes.Buffer
logger := New()
logger.Out = &buffer
logger.Formatter = &TextFormatter{
DisableColors: true,
}
log(logger)
fields := make(map[string]string)
for _, kv := range strings.Split(buffer.String(), " ") {
if !strings.Contains(kv, "=") {
continue
}
kvArr := strings.Split(kv, "=")
key := strings.TrimSpace(kvArr[0])
val := kvArr[1]
if kvArr[1][0] == '"' {
var err error
val, err = strconv.Unquote(val)
assert.NoError(t, err)
}
fields[key] = val
}
assertions(fields)
}
func TestPrint(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Print("test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test")
assert.Equal(t, fields["level"], "info")
})
}
func TestInfo(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Info("test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test")
assert.Equal(t, fields["level"], "info")
})
}
func TestWarn(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Warn("test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test")
assert.Equal(t, fields["level"], "warning")
})
}
func TestInfolnShouldAddSpacesBetweenStrings(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Infoln("test", "test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test test")
})
}
func TestInfolnShouldAddSpacesBetweenStringAndNonstring(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Infoln("test", 10)
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test 10")
})
}
func TestInfolnShouldAddSpacesBetweenTwoNonStrings(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Infoln(10, 10)
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "10 10")
})
}
func TestInfoShouldAddSpacesBetweenTwoNonStrings(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Infoln(10, 10)
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "10 10")
})
}
func TestInfoShouldNotAddSpacesBetweenStringAndNonstring(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Info("test", 10)
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test10")
})
}
func TestInfoShouldNotAddSpacesBetweenStrings(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.Info("test", "test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "testtest")
})
}
func TestWithFieldsShouldAllowAssignments(t *testing.T) {
var buffer bytes.Buffer
var fields Fields
logger := New()
logger.Out = &buffer
logger.Formatter = new(JSONFormatter)
localLog := logger.WithFields(Fields{
"key1": "value1",
})
localLog.WithField("key2", "value2").Info("test")
err := json.Unmarshal(buffer.Bytes(), &fields)
assert.Nil(t, err)
assert.Equal(t, "value2", fields["key2"])
assert.Equal(t, "value1", fields["key1"])
buffer = bytes.Buffer{}
fields = Fields{}
localLog.Info("test")
err = json.Unmarshal(buffer.Bytes(), &fields)
assert.Nil(t, err)
_, ok := fields["key2"]
assert.Equal(t, false, ok)
assert.Equal(t, "value1", fields["key1"])
}
func TestUserSuppliedFieldDoesNotOverwriteDefaults(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.WithField("msg", "hello").Info("test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test")
})
}
func TestUserSuppliedMsgFieldHasPrefix(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.WithField("msg", "hello").Info("test")
}, func(fields Fields) {
assert.Equal(t, fields["msg"], "test")
assert.Equal(t, fields["fields.msg"], "hello")
})
}
func TestUserSuppliedTimeFieldHasPrefix(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.WithField("time", "hello").Info("test")
}, func(fields Fields) {
assert.Equal(t, fields["fields.time"], "hello")
})
}
func TestUserSuppliedLevelFieldHasPrefix(t *testing.T) {
LogAndAssertJSON(t, func(log *Logger) {
log.WithField("level", 1).Info("test")
}, func(fields Fields) {
assert.Equal(t, fields["level"], "info")
assert.Equal(t, fields["fields.level"], 1)
})
}
func TestDefaultFieldsAreNotPrefixed(t *testing.T) {
LogAndAssertText(t, func(log *Logger) {
ll := log.WithField("herp", "derp")
ll.Info("hello")
ll.Info("bye")
}, func(fields map[string]string) {
for _, fieldName := range []string{"fields.level", "fields.time", "fields.msg"} {
if _, ok := fields[fieldName]; ok {
t.Fatalf("should not have prefixed %q: %v", fieldName, fields)
}
}
})
}
func TestDoubleLoggingDoesntPrefixPreviousFields(t *testing.T) {
var buffer bytes.Buffer
var fields Fields
logger := New()
logger.Out = &buffer
logger.Formatter = new(JSONFormatter)
llog := logger.WithField("context", "eating raw fish")
llog.Info("looks delicious")
err := json.Unmarshal(buffer.Bytes(), &fields)
assert.NoError(t, err, "should have decoded first message")
assert.Equal(t, len(fields), 4, "should only have msg/time/level/context fields")
assert.Equal(t, fields["msg"], "looks delicious")
assert.Equal(t, fields["context"], "eating raw fish")
buffer.Reset()
llog.Warn("omg it is!")
err = json.Unmarshal(buffer.Bytes(), &fields)
assert.NoError(t, err, "should have decoded second message")
assert.Equal(t, len(fields), 4, "should only have msg/time/level/context fields")
assert.Equal(t, fields["msg"], "omg it is!")
assert.Equal(t, fields["context"], "eating raw fish")
assert.Nil(t, fields["fields.msg"], "should not have prefixed previous `msg` entry")
}
func TestConvertLevelToString(t *testing.T) {
assert.Equal(t, "debug", DebugLevel.String())
assert.Equal(t, "info", InfoLevel.String())
assert.Equal(t, "warning", WarnLevel.String())
assert.Equal(t, "error", ErrorLevel.String())
assert.Equal(t, "fatal", FatalLevel.String())
assert.Equal(t, "panic", PanicLevel.String())
}
func TestParseLevel(t *testing.T) {
l, err := ParseLevel("panic")
assert.Nil(t, err)
assert.Equal(t, PanicLevel, l)
l, err = ParseLevel("fatal")
assert.Nil(t, err)
assert.Equal(t, FatalLevel, l)
l, err = ParseLevel("error")
assert.Nil(t, err)
assert.Equal(t, ErrorLevel, l)
l, err = ParseLevel("warn")
assert.Nil(t, err)
assert.Equal(t, WarnLevel, l)
l, err = ParseLevel("warning")
assert.Nil(t, err)
assert.Equal(t, WarnLevel, l)
l, err = ParseLevel("info")
assert.Nil(t, err)
assert.Equal(t, InfoLevel, l)
l, err = ParseLevel("debug")
assert.Nil(t, err)
assert.Equal(t, DebugLevel, l)
l, err = ParseLevel("invalid")
assert.Equal(t, "not a valid logrus Level: \"invalid\"", err.Error())
}

12
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_darwin.go generated vendored Normal file
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// Based on ssh/terminal:
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package logrus
import "syscall"
const ioctlReadTermios = syscall.TIOCGETA
type Termios syscall.Termios

20
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_freebsd.go generated vendored Normal file
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/*
Go 1.2 doesn't include Termios for FreeBSD. This should be added in 1.3 and this could be merged with terminal_darwin.
*/
package logrus
import (
"syscall"
)
const ioctlReadTermios = syscall.TIOCGETA
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Cc [20]uint8
Ispeed uint32
Ospeed uint32
}

12
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_linux.go generated vendored Normal file
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// Based on ssh/terminal:
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package logrus
import "syscall"
const ioctlReadTermios = syscall.TCGETS
type Termios syscall.Termios

21
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_notwindows.go generated vendored Normal file
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@ -0,0 +1,21 @@
// Based on ssh/terminal:
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux,!appengine darwin freebsd openbsd
package logrus
import (
"syscall"
"unsafe"
)
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal() bool {
fd := syscall.Stdout
var termios Termios
_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
return err == 0
}

8
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_openbsd.go generated vendored Normal file
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package logrus
import "syscall"
const ioctlReadTermios = syscall.TIOCGETA
type Termios syscall.Termios

27
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_windows.go generated vendored Normal file
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@ -0,0 +1,27 @@
// Based on ssh/terminal:
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows
package logrus
import (
"syscall"
"unsafe"
)
var kernel32 = syscall.NewLazyDLL("kernel32.dll")
var (
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
)
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal() bool {
fd := syscall.Stdout
var st uint32
r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0)
return r != 0 && e == 0
}

124
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/text_formatter.go generated vendored Normal file
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package logrus
import (
"bytes"
"fmt"
"regexp"
"sort"
"strings"
"time"
)
const (
nocolor = 0
red = 31
green = 32
yellow = 33
blue = 34
)
var (
baseTimestamp time.Time
isTerminal bool
noQuoteNeeded *regexp.Regexp
)
func init() {
baseTimestamp = time.Now()
isTerminal = IsTerminal()
}
func miniTS() int {
return int(time.Since(baseTimestamp) / time.Second)
}
type TextFormatter struct {
// Set to true to bypass checking for a TTY before outputting colors.
ForceColors bool
DisableColors bool
// Set to true to disable timestamp logging (useful when the output
// is redirected to a logging system already adding a timestamp)
DisableTimestamp bool
}
func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
var keys []string
for k := range entry.Data {
keys = append(keys, k)
}
sort.Strings(keys)
b := &bytes.Buffer{}
prefixFieldClashes(entry.Data)
isColored := (f.ForceColors || isTerminal) && !f.DisableColors
if isColored {
printColored(b, entry, keys)
} else {
if !f.DisableTimestamp {
f.appendKeyValue(b, "time", entry.Time.Format(time.RFC3339))
}
f.appendKeyValue(b, "level", entry.Level.String())
f.appendKeyValue(b, "msg", entry.Message)
for _, key := range keys {
f.appendKeyValue(b, key, entry.Data[key])
}
}
b.WriteByte('\n')
return b.Bytes(), nil
}
func printColored(b *bytes.Buffer, entry *Entry, keys []string) {
var levelColor int
switch entry.Level {
case WarnLevel:
levelColor = yellow
case ErrorLevel, FatalLevel, PanicLevel:
levelColor = red
default:
levelColor = blue
}
levelText := strings.ToUpper(entry.Level.String())[0:4]
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, miniTS(), entry.Message)
for _, k := range keys {
v := entry.Data[k]
fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=%v", levelColor, k, v)
}
}
func needsQuoting(text string) bool {
for _, ch := range text {
if !((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch < '9') ||
ch == '-' || ch == '.') {
return false
}
}
return true
}
func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key, value interface{}) {
switch value.(type) {
case string:
if needsQuoting(value.(string)) {
fmt.Fprintf(b, "%v=%s ", key, value)
} else {
fmt.Fprintf(b, "%v=%q ", key, value)
}
case error:
if needsQuoting(value.(error).Error()) {
fmt.Fprintf(b, "%v=%s ", key, value)
} else {
fmt.Fprintf(b, "%v=%q ", key, value)
}
default:
fmt.Fprintf(b, "%v=%v ", key, value)
}
}

33
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/text_formatter_test.go generated vendored Normal file
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package logrus
import (
"bytes"
"errors"
"testing"
)
func TestQuoting(t *testing.T) {
tf := &TextFormatter{DisableColors: true}
checkQuoting := func(q bool, value interface{}) {
b, _ := tf.Format(WithField("test", value))
idx := bytes.Index(b, ([]byte)("test="))
cont := bytes.Contains(b[idx+5:], []byte{'"'})
if cont != q {
if q {
t.Errorf("quoting expected for: %#v", value)
} else {
t.Errorf("quoting not expected for: %#v", value)
}
}
}
checkQuoting(false, "abcd")
checkQuoting(false, "v1.0")
checkQuoting(true, "/foobar")
checkQuoting(true, "x y")
checkQuoting(true, "x,y")
checkQuoting(false, errors.New("invalid"))
checkQuoting(true, errors.New("invalid argument"))
}

31
libnetwork/Godeps/_workspace/src/github.com/Sirupsen/logrus/writer.go generated vendored Normal file
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package logrus
import (
"bufio"
"io"
"runtime"
)
func (logger *Logger) Writer() (*io.PipeWriter) {
reader, writer := io.Pipe()
go logger.writerScanner(reader)
runtime.SetFinalizer(writer, writerFinalizer)
return writer
}
func (logger *Logger) writerScanner(reader *io.PipeReader) {
scanner := bufio.NewScanner(reader)
for scanner.Scan() {
logger.Print(scanner.Text())
}
if err := scanner.Err(); err != nil {
logger.Errorf("Error while reading from Writer: %s", err)
}
reader.Close()
}
func writerFinalizer(writer *io.PipeWriter) {
writer.Close()
}

720
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/bridge/driver.go generated vendored Normal file
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package bridge
import (
"encoding/hex"
"errors"
"fmt"
"io/ioutil"
"net"
"os"
"strings"
"sync"
log "github.com/Sirupsen/logrus"
"github.com/docker/docker/daemon/networkdriver"
"github.com/docker/docker/daemon/networkdriver/ipallocator"
"github.com/docker/docker/daemon/networkdriver/portmapper"
"github.com/docker/docker/engine"
"github.com/docker/docker/nat"
"github.com/docker/docker/pkg/iptables"
"github.com/docker/docker/pkg/networkfs/resolvconf"
"github.com/docker/docker/pkg/parsers/kernel"
"github.com/docker/libcontainer/netlink"
)
const (
DefaultNetworkBridge = "docker0"
MaxAllocatedPortAttempts = 10
)
// Network interface represents the networking stack of a container
type networkInterface struct {
IP net.IP
IPv6 net.IP
PortMappings []net.Addr // there are mappings to the host interfaces
}
type ifaces struct {
c map[string]*networkInterface
sync.Mutex
}
func (i *ifaces) Set(key string, n *networkInterface) {
i.Lock()
i.c[key] = n
i.Unlock()
}
func (i *ifaces) Get(key string) *networkInterface {
i.Lock()
res := i.c[key]
i.Unlock()
return res
}
var (
addrs = []string{
// Here we don't follow the convention of using the 1st IP of the range for the gateway.
// This is to use the same gateway IPs as the /24 ranges, which predate the /16 ranges.
// In theory this shouldn't matter - in practice there's bound to be a few scripts relying
// on the internal addressing or other stupid things like that.
// They shouldn't, but hey, let's not break them unless we really have to.
"172.17.42.1/16", // Don't use 172.16.0.0/16, it conflicts with EC2 DNS 172.16.0.23
"10.0.42.1/16", // Don't even try using the entire /8, that's too intrusive
"10.1.42.1/16",
"10.42.42.1/16",
"172.16.42.1/24",
"172.16.43.1/24",
"172.16.44.1/24",
"10.0.42.1/24",
"10.0.43.1/24",
"192.168.42.1/24",
"192.168.43.1/24",
"192.168.44.1/24",
}
bridgeIface string
bridgeIPv4Network *net.IPNet
bridgeIPv6Addr net.IP
globalIPv6Network *net.IPNet
defaultBindingIP = net.ParseIP("0.0.0.0")
currentInterfaces = ifaces{c: make(map[string]*networkInterface)}
)
func InitDriver(job *engine.Job) engine.Status {
var (
networkv4 *net.IPNet
networkv6 *net.IPNet
addrv4 net.Addr
addrsv6 []net.Addr
enableIPTables = job.GetenvBool("EnableIptables")
enableIPv6 = job.GetenvBool("EnableIPv6")
icc = job.GetenvBool("InterContainerCommunication")
ipMasq = job.GetenvBool("EnableIpMasq")
ipForward = job.GetenvBool("EnableIpForward")
bridgeIP = job.Getenv("BridgeIP")
bridgeIPv6 = "fe80::1/64"
fixedCIDR = job.Getenv("FixedCIDR")
fixedCIDRv6 = job.Getenv("FixedCIDRv6")
)
if defaultIP := job.Getenv("DefaultBindingIP"); defaultIP != "" {
defaultBindingIP = net.ParseIP(defaultIP)
}
bridgeIface = job.Getenv("BridgeIface")
usingDefaultBridge := false
if bridgeIface == "" {
usingDefaultBridge = true
bridgeIface = DefaultNetworkBridge
}
addrv4, addrsv6, err := networkdriver.GetIfaceAddr(bridgeIface)
if err != nil {
// No Bridge existent, create one
// If we're not using the default bridge, fail without trying to create it
if !usingDefaultBridge {
return job.Error(err)
}
// If the iface is not found, try to create it
if err := configureBridge(bridgeIP, bridgeIPv6, enableIPv6); err != nil {
return job.Error(err)
}
addrv4, addrsv6, err = networkdriver.GetIfaceAddr(bridgeIface)
if err != nil {
return job.Error(err)
}
if fixedCIDRv6 != "" {
// Setting route to global IPv6 subnet
log.Infof("Adding route to IPv6 network %q via device %q", fixedCIDRv6, bridgeIface)
if err := netlink.AddRoute(fixedCIDRv6, "", "", bridgeIface); err != nil {
log.Fatalf("Could not add route to IPv6 network %q via device %q", fixedCIDRv6, bridgeIface)
}
}
} else {
// Bridge exists already, getting info...
// validate that the bridge ip matches the ip specified by BridgeIP
if bridgeIP != "" {
networkv4 = addrv4.(*net.IPNet)
bip, _, err := net.ParseCIDR(bridgeIP)
if err != nil {
return job.Error(err)
}
if !networkv4.IP.Equal(bip) {
return job.Errorf("bridge ip (%s) does not match existing bridge configuration %s", networkv4.IP, bip)
}
}
// a bridge might exist but not have any IPv6 addr associated with it yet
// (for example, an existing Docker installation that has only been used
// with IPv4 and docker0 already is set up) In that case, we can perform
// the bridge init for IPv6 here, else we will error out below if --ipv6=true
if len(addrsv6) == 0 && enableIPv6 {
if err := setupIPv6Bridge(bridgeIPv6); err != nil {
return job.Error(err)
}
// recheck addresses now that IPv6 is setup on the bridge
addrv4, addrsv6, err = networkdriver.GetIfaceAddr(bridgeIface)
if err != nil {
return job.Error(err)
}
}
// TODO: Check if route to fixedCIDRv6 is set
}
if enableIPv6 {
bip6, _, err := net.ParseCIDR(bridgeIPv6)
if err != nil {
return job.Error(err)
}
found := false
for _, addrv6 := range addrsv6 {
networkv6 = addrv6.(*net.IPNet)
if networkv6.IP.Equal(bip6) {
found = true
break
}
}
if !found {
return job.Errorf("bridge IPv6 does not match existing bridge configuration %s", bip6)
}
}
networkv4 = addrv4.(*net.IPNet)
if enableIPv6 {
if len(addrsv6) == 0 {
return job.Error(errors.New("IPv6 enabled but no IPv6 detected"))
}
bridgeIPv6Addr = networkv6.IP
}
// Configure iptables for link support
if enableIPTables {
if err := setupIPTables(addrv4, icc, ipMasq); err != nil {
return job.Error(err)
}
}
if ipForward {
// Enable IPv4 forwarding
if err := ioutil.WriteFile("/proc/sys/net/ipv4/ip_forward", []byte{'1', '\n'}, 0644); err != nil {
job.Logf("WARNING: unable to enable IPv4 forwarding: %s\n", err)
}
if fixedCIDRv6 != "" {
// Enable IPv6 forwarding
if err := ioutil.WriteFile("/proc/sys/net/ipv6/conf/default/forwarding", []byte{'1', '\n'}, 0644); err != nil {
job.Logf("WARNING: unable to enable IPv6 default forwarding: %s\n", err)
}
if err := ioutil.WriteFile("/proc/sys/net/ipv6/conf/all/forwarding", []byte{'1', '\n'}, 0644); err != nil {
job.Logf("WARNING: unable to enable IPv6 all forwarding: %s\n", err)
}
}
}
// We can always try removing the iptables
if err := iptables.RemoveExistingChain("DOCKER", iptables.Nat); err != nil {
return job.Error(err)
}
if enableIPTables {
_, err := iptables.NewChain("DOCKER", bridgeIface, iptables.Nat)
if err != nil {
return job.Error(err)
}
chain, err := iptables.NewChain("DOCKER", bridgeIface, iptables.Filter)
if err != nil {
return job.Error(err)
}
portmapper.SetIptablesChain(chain)
}
bridgeIPv4Network = networkv4
if fixedCIDR != "" {
_, subnet, err := net.ParseCIDR(fixedCIDR)
if err != nil {
return job.Error(err)
}
log.Debugf("Subnet: %v", subnet)
if err := ipallocator.RegisterSubnet(bridgeIPv4Network, subnet); err != nil {
return job.Error(err)
}
}
if fixedCIDRv6 != "" {
_, subnet, err := net.ParseCIDR(fixedCIDRv6)
if err != nil {
return job.Error(err)
}
log.Debugf("Subnet: %v", subnet)
if err := ipallocator.RegisterSubnet(subnet, subnet); err != nil {
return job.Error(err)
}
globalIPv6Network = subnet
}
// Block BridgeIP in IP allocator
ipallocator.RequestIP(bridgeIPv4Network, bridgeIPv4Network.IP)
// https://github.com/docker/docker/issues/2768
job.Eng.Hack_SetGlobalVar("httpapi.bridgeIP", bridgeIPv4Network.IP)
for name, f := range map[string]engine.Handler{
"allocate_interface": Allocate,
"release_interface": Release,
"allocate_port": AllocatePort,
"link": LinkContainers,
} {
if err := job.Eng.Register(name, f); err != nil {
return job.Error(err)
}
}
return engine.StatusOK
}
func setupIPTables(addr net.Addr, icc, ipmasq bool) error {
// Enable NAT
if ipmasq {
natArgs := []string{"POSTROUTING", "-t", "nat", "-s", addr.String(), "!", "-o", bridgeIface, "-j", "MASQUERADE"}
if !iptables.Exists(natArgs...) {
if output, err := iptables.Raw(append([]string{"-I"}, natArgs...)...); err != nil {
return fmt.Errorf("Unable to enable network bridge NAT: %s", err)
} else if len(output) != 0 {
return &iptables.ChainError{Chain: "POSTROUTING", Output: output}
}
}
}
var (
args = []string{"FORWARD", "-i", bridgeIface, "-o", bridgeIface, "-j"}
acceptArgs = append(args, "ACCEPT")
dropArgs = append(args, "DROP")
)
if !icc {
iptables.Raw(append([]string{"-D"}, acceptArgs...)...)
if !iptables.Exists(dropArgs...) {
log.Debugf("Disable inter-container communication")
if output, err := iptables.Raw(append([]string{"-I"}, dropArgs...)...); err != nil {
return fmt.Errorf("Unable to prevent intercontainer communication: %s", err)
} else if len(output) != 0 {
return fmt.Errorf("Error disabling intercontainer communication: %s", output)
}
}
} else {
iptables.Raw(append([]string{"-D"}, dropArgs...)...)
if !iptables.Exists(acceptArgs...) {
log.Debugf("Enable inter-container communication")
if output, err := iptables.Raw(append([]string{"-I"}, acceptArgs...)...); err != nil {
return fmt.Errorf("Unable to allow intercontainer communication: %s", err)
} else if len(output) != 0 {
return fmt.Errorf("Error enabling intercontainer communication: %s", output)
}
}
}
// Accept all non-intercontainer outgoing packets
outgoingArgs := []string{"FORWARD", "-i", bridgeIface, "!", "-o", bridgeIface, "-j", "ACCEPT"}
if !iptables.Exists(outgoingArgs...) {
if output, err := iptables.Raw(append([]string{"-I"}, outgoingArgs...)...); err != nil {
return fmt.Errorf("Unable to allow outgoing packets: %s", err)
} else if len(output) != 0 {
return &iptables.ChainError{Chain: "FORWARD outgoing", Output: output}
}
}
// Accept incoming packets for existing connections
existingArgs := []string{"FORWARD", "-o", bridgeIface, "-m", "conntrack", "--ctstate", "RELATED,ESTABLISHED", "-j", "ACCEPT"}
if !iptables.Exists(existingArgs...) {
if output, err := iptables.Raw(append([]string{"-I"}, existingArgs...)...); err != nil {
return fmt.Errorf("Unable to allow incoming packets: %s", err)
} else if len(output) != 0 {
return &iptables.ChainError{Chain: "FORWARD incoming", Output: output}
}
}
return nil
}
// configureBridge attempts to create and configure a network bridge interface named `bridgeIface` on the host
// If bridgeIP is empty, it will try to find a non-conflicting IP from the Docker-specified private ranges
// If the bridge `bridgeIface` already exists, it will only perform the IP address association with the existing
// bridge (fixes issue #8444)
// If an address which doesn't conflict with existing interfaces can't be found, an error is returned.
func configureBridge(bridgeIP string, bridgeIPv6 string, enableIPv6 bool) error {
nameservers := []string{}
resolvConf, _ := resolvconf.Get()
// we don't check for an error here, because we don't really care
// if we can't read /etc/resolv.conf. So instead we skip the append
// if resolvConf is nil. It either doesn't exist, or we can't read it
// for some reason.
if resolvConf != nil {
nameservers = append(nameservers, resolvconf.GetNameserversAsCIDR(resolvConf)...)
}
var ifaceAddr string
if len(bridgeIP) != 0 {
_, _, err := net.ParseCIDR(bridgeIP)
if err != nil {
return err
}
ifaceAddr = bridgeIP
} else {
for _, addr := range addrs {
_, dockerNetwork, err := net.ParseCIDR(addr)
if err != nil {
return err
}
if err := networkdriver.CheckNameserverOverlaps(nameservers, dockerNetwork); err == nil {
if err := networkdriver.CheckRouteOverlaps(dockerNetwork); err == nil {
ifaceAddr = addr
break
} else {
log.Debugf("%s %s", addr, err)
}
}
}
}
if ifaceAddr == "" {
return fmt.Errorf("Could not find a free IP address range for interface '%s'. Please configure its address manually and run 'docker -b %s'", bridgeIface, bridgeIface)
}
log.Debugf("Creating bridge %s with network %s", bridgeIface, ifaceAddr)
if err := createBridgeIface(bridgeIface); err != nil {
// the bridge may already exist, therefore we can ignore an "exists" error
if !os.IsExist(err) {
return err
}
}
iface, err := net.InterfaceByName(bridgeIface)
if err != nil {
return err
}
ipAddr, ipNet, err := net.ParseCIDR(ifaceAddr)
if err != nil {
return err
}
if err := netlink.NetworkLinkAddIp(iface, ipAddr, ipNet); err != nil {
return fmt.Errorf("Unable to add private network: %s", err)
}
if enableIPv6 {
if err := setupIPv6Bridge(bridgeIPv6); err != nil {
return err
}
}
if err := netlink.NetworkLinkUp(iface); err != nil {
return fmt.Errorf("Unable to start network bridge: %s", err)
}
return nil
}
func setupIPv6Bridge(bridgeIPv6 string) error {
iface, err := net.InterfaceByName(bridgeIface)
if err != nil {
return err
}
// Enable IPv6 on the bridge
procFile := "/proc/sys/net/ipv6/conf/" + iface.Name + "/disable_ipv6"
if err := ioutil.WriteFile(procFile, []byte{'0', '\n'}, 0644); err != nil {
return fmt.Errorf("Unable to enable IPv6 addresses on bridge: %v", err)
}
ipAddr6, ipNet6, err := net.ParseCIDR(bridgeIPv6)
if err != nil {
return fmt.Errorf("Unable to parse bridge IPv6 address: %q, error: %v", bridgeIPv6, err)
}
if err := netlink.NetworkLinkAddIp(iface, ipAddr6, ipNet6); err != nil {
return fmt.Errorf("Unable to add private IPv6 network: %v", err)
}
return nil
}
func createBridgeIface(name string) error {
kv, err := kernel.GetKernelVersion()
// only set the bridge's mac address if the kernel version is > 3.3
// before that it was not supported
setBridgeMacAddr := err == nil && (kv.Kernel >= 3 && kv.Major >= 3)
log.Debugf("setting bridge mac address = %v", setBridgeMacAddr)
return netlink.CreateBridge(name, setBridgeMacAddr)
}
// Generate a IEEE802 compliant MAC address from the given IP address.
//
// The generator is guaranteed to be consistent: the same IP will always yield the same
// MAC address. This is to avoid ARP cache issues.
func generateMacAddr(ip net.IP) net.HardwareAddr {
hw := make(net.HardwareAddr, 6)
// The first byte of the MAC address has to comply with these rules:
// 1. Unicast: Set the least-significant bit to 0.
// 2. Address is locally administered: Set the second-least-significant bit (U/L) to 1.
// 3. As "small" as possible: The veth address has to be "smaller" than the bridge address.
hw[0] = 0x02
// The first 24 bits of the MAC represent the Organizationally Unique Identifier (OUI).
// Since this address is locally administered, we can do whatever we want as long as
// it doesn't conflict with other addresses.
hw[1] = 0x42
// Insert the IP address into the last 32 bits of the MAC address.
// This is a simple way to guarantee the address will be consistent and unique.
copy(hw[2:], ip.To4())
return hw
}
func linkLocalIPv6FromMac(mac string) (string, error) {
hx := strings.Replace(mac, ":", "", -1)
hw, err := hex.DecodeString(hx)
if err != nil {
return "", errors.New("Could not parse MAC address " + mac)
}
hw[0] ^= 0x2
return fmt.Sprintf("fe80::%x%x:%xff:fe%x:%x%x/64", hw[0], hw[1], hw[2], hw[3], hw[4], hw[5]), nil
}
// Allocate a network interface
func Allocate(job *engine.Job) engine.Status {
var (
ip net.IP
mac net.HardwareAddr
err error
id = job.Args[0]
requestedIP = net.ParseIP(job.Getenv("RequestedIP"))
requestedIPv6 = net.ParseIP(job.Getenv("RequestedIPv6"))
globalIPv6 net.IP
)
if requestedIP != nil {
ip, err = ipallocator.RequestIP(bridgeIPv4Network, requestedIP)
} else {
ip, err = ipallocator.RequestIP(bridgeIPv4Network, nil)
}
if err != nil {
return job.Error(err)
}
// If no explicit mac address was given, generate a random one.
if mac, err = net.ParseMAC(job.Getenv("RequestedMac")); err != nil {
mac = generateMacAddr(ip)
}
if globalIPv6Network != nil {
// if globalIPv6Network Size is at least a /80 subnet generate IPv6 address from MAC address
netmask_ones, _ := globalIPv6Network.Mask.Size()
if requestedIPv6 == nil && netmask_ones <= 80 {
requestedIPv6 = globalIPv6Network.IP
for i, h := range mac {
requestedIPv6[i+10] = h
}
}
globalIPv6, err = ipallocator.RequestIP(globalIPv6Network, requestedIPv6)
if err != nil {
log.Errorf("Allocator: RequestIP v6: %s", err.Error())
return job.Error(err)
}
log.Infof("Allocated IPv6 %s", globalIPv6)
}
out := engine.Env{}
out.Set("IP", ip.String())
out.Set("Mask", bridgeIPv4Network.Mask.String())
out.Set("Gateway", bridgeIPv4Network.IP.String())
out.Set("MacAddress", mac.String())
out.Set("Bridge", bridgeIface)
size, _ := bridgeIPv4Network.Mask.Size()
out.SetInt("IPPrefixLen", size)
// if linklocal IPv6
localIPv6Net, err := linkLocalIPv6FromMac(mac.String())
if err != nil {
return job.Error(err)
}
localIPv6, _, _ := net.ParseCIDR(localIPv6Net)
out.Set("LinkLocalIPv6", localIPv6.String())
out.Set("MacAddress", mac.String())
if globalIPv6Network != nil {
out.Set("GlobalIPv6", globalIPv6.String())
sizev6, _ := globalIPv6Network.Mask.Size()
out.SetInt("GlobalIPv6PrefixLen", sizev6)
out.Set("IPv6Gateway", bridgeIPv6Addr.String())
}
currentInterfaces.Set(id, &networkInterface{
IP: ip,
IPv6: globalIPv6,
})
out.WriteTo(job.Stdout)
return engine.StatusOK
}
// release an interface for a select ip
func Release(job *engine.Job) engine.Status {
var (
id = job.Args[0]
containerInterface = currentInterfaces.Get(id)
)
if containerInterface == nil {
return job.Errorf("No network information to release for %s", id)
}
for _, nat := range containerInterface.PortMappings {
if err := portmapper.Unmap(nat); err != nil {
log.Infof("Unable to unmap port %s: %s", nat, err)
}
}
if err := ipallocator.ReleaseIP(bridgeIPv4Network, containerInterface.IP); err != nil {
log.Infof("Unable to release IPv4 %s", err)
}
if globalIPv6Network != nil {
if err := ipallocator.ReleaseIP(globalIPv6Network, containerInterface.IPv6); err != nil {
log.Infof("Unable to release IPv6 %s", err)
}
}
return engine.StatusOK
}
// Allocate an external port and map it to the interface
func AllocatePort(job *engine.Job) engine.Status {
var (
err error
ip = defaultBindingIP
id = job.Args[0]
hostIP = job.Getenv("HostIP")
hostPort = job.GetenvInt("HostPort")
containerPort = job.GetenvInt("ContainerPort")
proto = job.Getenv("Proto")
network = currentInterfaces.Get(id)
)
if hostIP != "" {
ip = net.ParseIP(hostIP)
if ip == nil {
return job.Errorf("Bad parameter: invalid host ip %s", hostIP)
}
}
// host ip, proto, and host port
var container net.Addr
switch proto {
case "tcp":
container = &net.TCPAddr{IP: network.IP, Port: containerPort}
case "udp":
container = &net.UDPAddr{IP: network.IP, Port: containerPort}
default:
return job.Errorf("unsupported address type %s", proto)
}
//
// Try up to 10 times to get a port that's not already allocated.
//
// In the event of failure to bind, return the error that portmapper.Map
// yields.
//
var host net.Addr
for i := 0; i < MaxAllocatedPortAttempts; i++ {
if host, err = portmapper.Map(container, ip, hostPort); err == nil {
break
}
// There is no point in immediately retrying to map an explicitly
// chosen port.
if hostPort != 0 {
job.Logf("Failed to allocate and map port %d: %s", hostPort, err)
break
}
job.Logf("Failed to allocate and map port: %s, retry: %d", err, i+1)
}
if err != nil {
return job.Error(err)
}
network.PortMappings = append(network.PortMappings, host)
out := engine.Env{}
switch netAddr := host.(type) {
case *net.TCPAddr:
out.Set("HostIP", netAddr.IP.String())
out.SetInt("HostPort", netAddr.Port)
case *net.UDPAddr:
out.Set("HostIP", netAddr.IP.String())
out.SetInt("HostPort", netAddr.Port)
}
if _, err := out.WriteTo(job.Stdout); err != nil {
return job.Error(err)
}
return engine.StatusOK
}
func LinkContainers(job *engine.Job) engine.Status {
var (
action = job.Args[0]
nfAction iptables.Action
childIP = job.Getenv("ChildIP")
parentIP = job.Getenv("ParentIP")
ignoreErrors = job.GetenvBool("IgnoreErrors")
ports = job.GetenvList("Ports")
)
switch action {
case "-A":
nfAction = iptables.Append
case "-I":
nfAction = iptables.Insert
case "-D":
nfAction = iptables.Delete
default:
return job.Errorf("Invalid action '%s' specified", action)
}
ip1 := net.ParseIP(parentIP)
if ip1 == nil {
return job.Errorf("parent IP '%s' is invalid", parentIP)
}
ip2 := net.ParseIP(childIP)
if ip2 == nil {
return job.Errorf("child IP '%s' is invalid", childIP)
}
chain := iptables.Chain{Name: "DOCKER", Bridge: bridgeIface}
for _, p := range ports {
port := nat.Port(p)
if err := chain.Link(nfAction, ip1, ip2, port.Int(), port.Proto()); !ignoreErrors && err != nil {
return job.Error(err)
}
}
return engine.StatusOK
}

161
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/bridge/driver_test.go generated vendored Normal file
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package bridge
import (
"net"
"strconv"
"testing"
"github.com/docker/docker/daemon/networkdriver/portmapper"
"github.com/docker/docker/engine"
"github.com/docker/docker/pkg/iptables"
)
func init() {
// reset the new proxy command for mocking out the userland proxy in tests
portmapper.NewProxy = portmapper.NewMockProxyCommand
}
func findFreePort(t *testing.T) int {
l, err := net.Listen("tcp", ":0")
if err != nil {
t.Fatal("Failed to find a free port")
}
defer l.Close()
result, err := net.ResolveTCPAddr("tcp", l.Addr().String())
if err != nil {
t.Fatal("Failed to resolve address to identify free port")
}
return result.Port
}
func newPortAllocationJob(eng *engine.Engine, port int) (job *engine.Job) {
strPort := strconv.Itoa(port)
job = eng.Job("allocate_port", "container_id")
job.Setenv("HostIP", "127.0.0.1")
job.Setenv("HostPort", strPort)
job.Setenv("Proto", "tcp")
job.Setenv("ContainerPort", strPort)
return
}
func newPortAllocationJobWithInvalidHostIP(eng *engine.Engine, port int) (job *engine.Job) {
strPort := strconv.Itoa(port)
job = eng.Job("allocate_port", "container_id")
job.Setenv("HostIP", "localhost")
job.Setenv("HostPort", strPort)
job.Setenv("Proto", "tcp")
job.Setenv("ContainerPort", strPort)
return
}
func TestAllocatePortDetection(t *testing.T) {
eng := engine.New()
eng.Logging = false
freePort := findFreePort(t)
// Init driver
job := eng.Job("initdriver")
if res := InitDriver(job); res != engine.StatusOK {
t.Fatal("Failed to initialize network driver")
}
// Allocate interface
job = eng.Job("allocate_interface", "container_id")
if res := Allocate(job); res != engine.StatusOK {
t.Fatal("Failed to allocate network interface")
}
// Allocate same port twice, expect failure on second call
job = newPortAllocationJob(eng, freePort)
if res := AllocatePort(job); res != engine.StatusOK {
t.Fatal("Failed to find a free port to allocate")
}
if res := AllocatePort(job); res == engine.StatusOK {
t.Fatal("Duplicate port allocation granted by AllocatePort")
}
}
func TestHostnameFormatChecking(t *testing.T) {
eng := engine.New()
eng.Logging = false
freePort := findFreePort(t)
// Init driver
job := eng.Job("initdriver")
if res := InitDriver(job); res != engine.StatusOK {
t.Fatal("Failed to initialize network driver")
}
// Allocate interface
job = eng.Job("allocate_interface", "container_id")
if res := Allocate(job); res != engine.StatusOK {
t.Fatal("Failed to allocate network interface")
}
// Allocate port with invalid HostIP, expect failure with Bad Request http status
job = newPortAllocationJobWithInvalidHostIP(eng, freePort)
if res := AllocatePort(job); res == engine.StatusOK {
t.Fatal("Failed to check invalid HostIP")
}
}
func TestMacAddrGeneration(t *testing.T) {
ip := net.ParseIP("192.168.0.1")
mac := generateMacAddr(ip).String()
// Should be consistent.
if generateMacAddr(ip).String() != mac {
t.Fatal("Inconsistent MAC address")
}
// Should be unique.
ip2 := net.ParseIP("192.168.0.2")
if generateMacAddr(ip2).String() == mac {
t.Fatal("Non-unique MAC address")
}
}
func TestLinkContainers(t *testing.T) {
eng := engine.New()
eng.Logging = false
// Init driver
job := eng.Job("initdriver")
if res := InitDriver(job); res != engine.StatusOK {
t.Fatal("Failed to initialize network driver")
}
// Allocate interface
job = eng.Job("allocate_interface", "container_id")
if res := Allocate(job); res != engine.StatusOK {
t.Fatal("Failed to allocate network interface")
}
job.Args[0] = "-I"
job.Setenv("ChildIP", "172.17.0.2")
job.Setenv("ParentIP", "172.17.0.1")
job.SetenvBool("IgnoreErrors", false)
job.SetenvList("Ports", []string{"1234"})
bridgeIface = "lo"
_, err := iptables.NewChain("DOCKER", bridgeIface, iptables.Filter)
if err != nil {
t.Fatal(err)
}
if res := LinkContainers(job); res != engine.StatusOK {
t.Fatalf("LinkContainers failed")
}
// flush rules
if _, err = iptables.Raw([]string{"-F", "DOCKER"}...); err != nil {
t.Fatal(err)
}
}

160
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/ipallocator/allocator.go generated vendored Normal file
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package ipallocator
import (
"errors"
"math/big"
"net"
"sync"
log "github.com/Sirupsen/logrus"
"github.com/docker/docker/daemon/networkdriver"
)
// allocatedMap is thread-unsafe set of allocated IP
type allocatedMap struct {
p map[string]struct{}
last *big.Int
begin *big.Int
end *big.Int
}
func newAllocatedMap(network *net.IPNet) *allocatedMap {
firstIP, lastIP := networkdriver.NetworkRange(network)
begin := big.NewInt(0).Add(ipToBigInt(firstIP), big.NewInt(1))
end := big.NewInt(0).Sub(ipToBigInt(lastIP), big.NewInt(1))
return &allocatedMap{
p: make(map[string]struct{}),
begin: begin,
end: end,
last: big.NewInt(0).Sub(begin, big.NewInt(1)), // so first allocated will be begin
}
}
type networkSet map[string]*allocatedMap
var (
ErrNoAvailableIPs = errors.New("no available ip addresses on network")
ErrIPAlreadyAllocated = errors.New("ip already allocated")
ErrIPOutOfRange = errors.New("requested ip is out of range")
ErrNetworkAlreadyRegistered = errors.New("network already registered")
ErrBadSubnet = errors.New("network does not contain specified subnet")
)
var (
lock = sync.Mutex{}
allocatedIPs = networkSet{}
)
// RegisterSubnet registers network in global allocator with bounds
// defined by subnet. If you want to use network range you must call
// this method before first RequestIP, otherwise full network range will be used
func RegisterSubnet(network *net.IPNet, subnet *net.IPNet) error {
lock.Lock()
defer lock.Unlock()
key := network.String()
if _, ok := allocatedIPs[key]; ok {
return ErrNetworkAlreadyRegistered
}
n := newAllocatedMap(network)
beginIP, endIP := networkdriver.NetworkRange(subnet)
begin := big.NewInt(0).Add(ipToBigInt(beginIP), big.NewInt(1))
end := big.NewInt(0).Sub(ipToBigInt(endIP), big.NewInt(1))
// Check that subnet is within network
if !(begin.Cmp(n.begin) >= 0 && end.Cmp(n.end) <= 0 && begin.Cmp(end) == -1) {
return ErrBadSubnet
}
n.begin.Set(begin)
n.end.Set(end)
n.last.Sub(begin, big.NewInt(1))
allocatedIPs[key] = n
return nil
}
// RequestIP requests an available ip from the given network. It
// will return the next available ip if the ip provided is nil. If the
// ip provided is not nil it will validate that the provided ip is available
// for use or return an error
func RequestIP(network *net.IPNet, ip net.IP) (net.IP, error) {
lock.Lock()
defer lock.Unlock()
key := network.String()
allocated, ok := allocatedIPs[key]
if !ok {
allocated = newAllocatedMap(network)
allocatedIPs[key] = allocated
}
if ip == nil {
return allocated.getNextIP()
}
return allocated.checkIP(ip)
}
// ReleaseIP adds the provided ip back into the pool of
// available ips to be returned for use.
func ReleaseIP(network *net.IPNet, ip net.IP) error {
lock.Lock()
defer lock.Unlock()
if allocated, exists := allocatedIPs[network.String()]; exists {
delete(allocated.p, ip.String())
}
return nil
}
func (allocated *allocatedMap) checkIP(ip net.IP) (net.IP, error) {
if _, ok := allocated.p[ip.String()]; ok {
return nil, ErrIPAlreadyAllocated
}
pos := ipToBigInt(ip)
// Verify that the IP address is within our network range.
if pos.Cmp(allocated.begin) == -1 || pos.Cmp(allocated.end) == 1 {
return nil, ErrIPOutOfRange
}
// Register the IP.
allocated.p[ip.String()] = struct{}{}
return ip, nil
}
// return an available ip if one is currently available. If not,
// return the next available ip for the nextwork
func (allocated *allocatedMap) getNextIP() (net.IP, error) {
pos := big.NewInt(0).Set(allocated.last)
allRange := big.NewInt(0).Sub(allocated.end, allocated.begin)
for i := big.NewInt(0); i.Cmp(allRange) <= 0; i.Add(i, big.NewInt(1)) {
pos.Add(pos, big.NewInt(1))
if pos.Cmp(allocated.end) == 1 {
pos.Set(allocated.begin)
}
if _, ok := allocated.p[bigIntToIP(pos).String()]; ok {
continue
}
allocated.p[bigIntToIP(pos).String()] = struct{}{}
allocated.last.Set(pos)
return bigIntToIP(pos), nil
}
return nil, ErrNoAvailableIPs
}
// Converts a 4 bytes IP into a 128 bit integer
func ipToBigInt(ip net.IP) *big.Int {
x := big.NewInt(0)
if ip4 := ip.To4(); ip4 != nil {
return x.SetBytes(ip4)
}
if ip6 := ip.To16(); ip6 != nil {
return x.SetBytes(ip6)
}
log.Errorf("ipToBigInt: Wrong IP length! %s", ip)
return nil
}
// Converts 128 bit integer into a 4 bytes IP address
func bigIntToIP(v *big.Int) net.IP {
return net.IP(v.Bytes())
}

681
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/ipallocator/allocator_test.go generated vendored Normal file
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package ipallocator
import (
"fmt"
"math/big"
"net"
"testing"
)
func reset() {
allocatedIPs = networkSet{}
}
func TestConversion(t *testing.T) {
ip := net.ParseIP("127.0.0.1")
i := ipToBigInt(ip)
if i.Cmp(big.NewInt(0x7f000001)) != 0 {
t.Fatal("incorrect conversion")
}
conv := bigIntToIP(i)
if !ip.Equal(conv) {
t.Error(conv.String())
}
}
func TestConversionIPv6(t *testing.T) {
ip := net.ParseIP("2a00:1450::1")
ip2 := net.ParseIP("2a00:1450::2")
ip3 := net.ParseIP("2a00:1450::1:1")
i := ipToBigInt(ip)
val, success := big.NewInt(0).SetString("2a001450000000000000000000000001", 16)
if !success {
t.Fatal("Hex-String to BigInt conversion failed.")
}
if i.Cmp(val) != 0 {
t.Fatal("incorrent conversion")
}
conv := bigIntToIP(i)
conv2 := bigIntToIP(big.NewInt(0).Add(i, big.NewInt(1)))
conv3 := bigIntToIP(big.NewInt(0).Add(i, big.NewInt(0x10000)))
if !ip.Equal(conv) {
t.Error("2a00:1450::1 should be equal to " + conv.String())
}
if !ip2.Equal(conv2) {
t.Error("2a00:1450::2 should be equal to " + conv2.String())
}
if !ip3.Equal(conv3) {
t.Error("2a00:1450::1:1 should be equal to " + conv3.String())
}
}
func TestRequestNewIps(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{192, 168, 0, 1},
Mask: []byte{255, 255, 255, 0},
}
var ip net.IP
var err error
for i := 1; i < 10; i++ {
ip, err = RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
if expected := fmt.Sprintf("192.168.0.%d", i); ip.String() != expected {
t.Fatalf("Expected ip %s got %s", expected, ip.String())
}
}
value := bigIntToIP(big.NewInt(0).Add(ipToBigInt(ip), big.NewInt(1))).String()
if err := ReleaseIP(network, ip); err != nil {
t.Fatal(err)
}
ip, err = RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
if ip.String() != value {
t.Fatalf("Expected to receive the next ip %s got %s", value, ip.String())
}
}
func TestRequestNewIpV6(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{0x2a, 0x00, 0x14, 0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1},
Mask: []byte{255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0}, // /64 netmask
}
var ip net.IP
var err error
for i := 1; i < 10; i++ {
ip, err = RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
if expected := fmt.Sprintf("2a00:1450::%d", i); ip.String() != expected {
t.Fatalf("Expected ip %s got %s", expected, ip.String())
}
}
value := bigIntToIP(big.NewInt(0).Add(ipToBigInt(ip), big.NewInt(1))).String()
if err := ReleaseIP(network, ip); err != nil {
t.Fatal(err)
}
ip, err = RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
if ip.String() != value {
t.Fatalf("Expected to receive the next ip %s got %s", value, ip.String())
}
}
func TestReleaseIp(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{192, 168, 0, 1},
Mask: []byte{255, 255, 255, 0},
}
ip, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
if err := ReleaseIP(network, ip); err != nil {
t.Fatal(err)
}
}
func TestReleaseIpV6(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{0x2a, 0x00, 0x14, 0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1},
Mask: []byte{255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0}, // /64 netmask
}
ip, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
if err := ReleaseIP(network, ip); err != nil {
t.Fatal(err)
}
}
func TestGetReleasedIp(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{192, 168, 0, 1},
Mask: []byte{255, 255, 255, 0},
}
ip, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
value := ip.String()
if err := ReleaseIP(network, ip); err != nil {
t.Fatal(err)
}
for i := 0; i < 253; i++ {
_, err = RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
err = ReleaseIP(network, ip)
if err != nil {
t.Fatal(err)
}
}
ip, err = RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
if ip.String() != value {
t.Fatalf("Expected to receive same ip %s got %s", value, ip.String())
}
}
func TestGetReleasedIpV6(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{0x2a, 0x00, 0x14, 0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1},
Mask: []byte{255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 0},
}
ip, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
value := ip.String()
if err := ReleaseIP(network, ip); err != nil {
t.Fatal(err)
}
for i := 0; i < 253; i++ {
_, err = RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
err = ReleaseIP(network, ip)
if err != nil {
t.Fatal(err)
}
}
ip, err = RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
if ip.String() != value {
t.Fatalf("Expected to receive same ip %s got %s", value, ip.String())
}
}
func TestRequestSpecificIp(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{192, 168, 0, 1},
Mask: []byte{255, 255, 255, 224},
}
ip := net.ParseIP("192.168.0.5")
// Request a "good" IP.
if _, err := RequestIP(network, ip); err != nil {
t.Fatal(err)
}
// Request the same IP again.
if _, err := RequestIP(network, ip); err != ErrIPAlreadyAllocated {
t.Fatalf("Got the same IP twice: %#v", err)
}
// Request an out of range IP.
if _, err := RequestIP(network, net.ParseIP("192.168.0.42")); err != ErrIPOutOfRange {
t.Fatalf("Got an out of range IP: %#v", err)
}
}
func TestRequestSpecificIpV6(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{0x2a, 0x00, 0x14, 0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1},
Mask: []byte{255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0}, // /64 netmask
}
ip := net.ParseIP("2a00:1450::5")
// Request a "good" IP.
if _, err := RequestIP(network, ip); err != nil {
t.Fatal(err)
}
// Request the same IP again.
if _, err := RequestIP(network, ip); err != ErrIPAlreadyAllocated {
t.Fatalf("Got the same IP twice: %#v", err)
}
// Request an out of range IP.
if _, err := RequestIP(network, net.ParseIP("2a00:1500::1")); err != ErrIPOutOfRange {
t.Fatalf("Got an out of range IP: %#v", err)
}
}
func TestIPAllocator(t *testing.T) {
expectedIPs := []net.IP{
0: net.IPv4(127, 0, 0, 1),
1: net.IPv4(127, 0, 0, 2),
2: net.IPv4(127, 0, 0, 3),
3: net.IPv4(127, 0, 0, 4),
4: net.IPv4(127, 0, 0, 5),
5: net.IPv4(127, 0, 0, 6),
}
gwIP, n, _ := net.ParseCIDR("127.0.0.1/29")
network := &net.IPNet{IP: gwIP, Mask: n.Mask}
// Pool after initialisation (f = free, u = used)
// 1(f) - 2(f) - 3(f) - 4(f) - 5(f) - 6(f)
// ↑
// Check that we get 6 IPs, from 127.0.0.1–127.0.0.6, in that
// order.
for i := 0; i < 6; i++ {
ip, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
assertIPEquals(t, expectedIPs[i], ip)
}
// Before loop begin
// 1(f) - 2(f) - 3(f) - 4(f) - 5(f) - 6(f)
// ↑
// After i = 0
// 1(u) - 2(f) - 3(f) - 4(f) - 5(f) - 6(f)
// ↑
// After i = 1
// 1(u) - 2(u) - 3(f) - 4(f) - 5(f) - 6(f)
// ↑
// After i = 2
// 1(u) - 2(u) - 3(u) - 4(f) - 5(f) - 6(f)
// ↑
// After i = 3
// 1(u) - 2(u) - 3(u) - 4(u) - 5(f) - 6(f)
// ↑
// After i = 4
// 1(u) - 2(u) - 3(u) - 4(u) - 5(u) - 6(f)
// ↑
// After i = 5
// 1(u) - 2(u) - 3(u) - 4(u) - 5(u) - 6(u)
// ↑
// Check that there are no more IPs
ip, err := RequestIP(network, nil)
if err == nil {
t.Fatalf("There shouldn't be any IP addresses at this point, got %s\n", ip)
}
// Release some IPs in non-sequential order
if err := ReleaseIP(network, expectedIPs[3]); err != nil {
t.Fatal(err)
}
// 1(u) - 2(u) - 3(u) - 4(f) - 5(u) - 6(u)
// ↑
if err := ReleaseIP(network, expectedIPs[2]); err != nil {
t.Fatal(err)
}
// 1(u) - 2(u) - 3(f) - 4(f) - 5(u) - 6(u)
// ↑
if err := ReleaseIP(network, expectedIPs[4]); err != nil {
t.Fatal(err)
}
// 1(u) - 2(u) - 3(f) - 4(f) - 5(f) - 6(u)
// ↑
// Make sure that IPs are reused in sequential order, starting
// with the first released IP
newIPs := make([]net.IP, 3)
for i := 0; i < 3; i++ {
ip, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
newIPs[i] = ip
}
assertIPEquals(t, expectedIPs[2], newIPs[0])
assertIPEquals(t, expectedIPs[3], newIPs[1])
assertIPEquals(t, expectedIPs[4], newIPs[2])
_, err = RequestIP(network, nil)
if err == nil {
t.Fatal("There shouldn't be any IP addresses at this point")
}
}
func TestAllocateFirstIP(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{192, 168, 0, 0},
Mask: []byte{255, 255, 255, 0},
}
firstIP := network.IP.To4().Mask(network.Mask)
first := big.NewInt(0).Add(ipToBigInt(firstIP), big.NewInt(1))
ip, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
allocated := ipToBigInt(ip)
if allocated == first {
t.Fatalf("allocated ip should not equal first ip: %d == %d", first, allocated)
}
}
func TestAllocateAllIps(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{192, 168, 0, 1},
Mask: []byte{255, 255, 255, 0},
}
var (
current, first net.IP
err error
isFirst = true
)
for err == nil {
current, err = RequestIP(network, nil)
if isFirst {
first = current
isFirst = false
}
}
if err != ErrNoAvailableIPs {
t.Fatal(err)
}
if _, err := RequestIP(network, nil); err != ErrNoAvailableIPs {
t.Fatal(err)
}
if err := ReleaseIP(network, first); err != nil {
t.Fatal(err)
}
again, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
assertIPEquals(t, first, again)
// ensure that alloc.last == alloc.begin won't result in dead loop
if _, err := RequestIP(network, nil); err != ErrNoAvailableIPs {
t.Fatal(err)
}
// Test by making alloc.last the only free ip and ensure we get it back
// #1. first of the range, (alloc.last == ipToInt(first) already)
if err := ReleaseIP(network, first); err != nil {
t.Fatal(err)
}
ret, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
assertIPEquals(t, first, ret)
// #2. last of the range, note that current is the last one
last := net.IPv4(192, 168, 0, 254)
setLastTo(t, network, last)
ret, err = RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
assertIPEquals(t, last, ret)
// #3. middle of the range
mid := net.IPv4(192, 168, 0, 7)
setLastTo(t, network, mid)
ret, err = RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
assertIPEquals(t, mid, ret)
}
// make sure the pool is full when calling setLastTo.
// we don't cheat here
func setLastTo(t *testing.T, network *net.IPNet, ip net.IP) {
if err := ReleaseIP(network, ip); err != nil {
t.Fatal(err)
}
ret, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
assertIPEquals(t, ip, ret)
if err := ReleaseIP(network, ip); err != nil {
t.Fatal(err)
}
}
func TestAllocateDifferentSubnets(t *testing.T) {
defer reset()
network1 := &net.IPNet{
IP: []byte{192, 168, 0, 1},
Mask: []byte{255, 255, 255, 0},
}
network2 := &net.IPNet{
IP: []byte{127, 0, 0, 1},
Mask: []byte{255, 255, 255, 0},
}
network3 := &net.IPNet{
IP: []byte{0x2a, 0x00, 0x14, 0x50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1},
Mask: []byte{255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0}, // /64 netmask
}
network4 := &net.IPNet{
IP: []byte{0x2a, 0x00, 0x16, 0x32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1},
Mask: []byte{255, 255, 255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0}, // /64 netmask
}
expectedIPs := []net.IP{
0: net.IPv4(192, 168, 0, 1),
1: net.IPv4(192, 168, 0, 2),
2: net.IPv4(127, 0, 0, 1),
3: net.IPv4(127, 0, 0, 2),
4: net.ParseIP("2a00:1450::1"),
5: net.ParseIP("2a00:1450::2"),
6: net.ParseIP("2a00:1450::3"),
7: net.ParseIP("2a00:1632::1"),
8: net.ParseIP("2a00:1632::2"),
}
ip11, err := RequestIP(network1, nil)
if err != nil {
t.Fatal(err)
}
ip12, err := RequestIP(network1, nil)
if err != nil {
t.Fatal(err)
}
ip21, err := RequestIP(network2, nil)
if err != nil {
t.Fatal(err)
}
ip22, err := RequestIP(network2, nil)
if err != nil {
t.Fatal(err)
}
ip31, err := RequestIP(network3, nil)
if err != nil {
t.Fatal(err)
}
ip32, err := RequestIP(network3, nil)
if err != nil {
t.Fatal(err)
}
ip33, err := RequestIP(network3, nil)
if err != nil {
t.Fatal(err)
}
ip41, err := RequestIP(network4, nil)
if err != nil {
t.Fatal(err)
}
ip42, err := RequestIP(network4, nil)
if err != nil {
t.Fatal(err)
}
assertIPEquals(t, expectedIPs[0], ip11)
assertIPEquals(t, expectedIPs[1], ip12)
assertIPEquals(t, expectedIPs[2], ip21)
assertIPEquals(t, expectedIPs[3], ip22)
assertIPEquals(t, expectedIPs[4], ip31)
assertIPEquals(t, expectedIPs[5], ip32)
assertIPEquals(t, expectedIPs[6], ip33)
assertIPEquals(t, expectedIPs[7], ip41)
assertIPEquals(t, expectedIPs[8], ip42)
}
func TestRegisterBadTwice(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{192, 168, 1, 1},
Mask: []byte{255, 255, 255, 0},
}
subnet := &net.IPNet{
IP: []byte{192, 168, 1, 8},
Mask: []byte{255, 255, 255, 248},
}
if err := RegisterSubnet(network, subnet); err != nil {
t.Fatal(err)
}
subnet = &net.IPNet{
IP: []byte{192, 168, 1, 16},
Mask: []byte{255, 255, 255, 248},
}
if err := RegisterSubnet(network, subnet); err != ErrNetworkAlreadyRegistered {
t.Fatalf("Expecteded ErrNetworkAlreadyRegistered error, got %v", err)
}
}
func TestRegisterBadRange(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{192, 168, 1, 1},
Mask: []byte{255, 255, 255, 0},
}
subnet := &net.IPNet{
IP: []byte{192, 168, 1, 1},
Mask: []byte{255, 255, 0, 0},
}
if err := RegisterSubnet(network, subnet); err != ErrBadSubnet {
t.Fatalf("Expected ErrBadSubnet error, got %v", err)
}
}
func TestAllocateFromRange(t *testing.T) {
defer reset()
network := &net.IPNet{
IP: []byte{192, 168, 0, 1},
Mask: []byte{255, 255, 255, 0},
}
// 192.168.1.9 - 192.168.1.14
subnet := &net.IPNet{
IP: []byte{192, 168, 0, 8},
Mask: []byte{255, 255, 255, 248},
}
if err := RegisterSubnet(network, subnet); err != nil {
t.Fatal(err)
}
expectedIPs := []net.IP{
0: net.IPv4(192, 168, 0, 9),
1: net.IPv4(192, 168, 0, 10),
2: net.IPv4(192, 168, 0, 11),
3: net.IPv4(192, 168, 0, 12),
4: net.IPv4(192, 168, 0, 13),
5: net.IPv4(192, 168, 0, 14),
}
for _, ip := range expectedIPs {
rip, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
assertIPEquals(t, ip, rip)
}
if _, err := RequestIP(network, nil); err != ErrNoAvailableIPs {
t.Fatalf("Expected ErrNoAvailableIPs error, got %v", err)
}
for _, ip := range expectedIPs {
ReleaseIP(network, ip)
rip, err := RequestIP(network, nil)
if err != nil {
t.Fatal(err)
}
assertIPEquals(t, ip, rip)
}
}
func assertIPEquals(t *testing.T, ip1, ip2 net.IP) {
if !ip1.Equal(ip2) {
t.Fatalf("Expected IP %s, got %s", ip1, ip2)
}
}
func BenchmarkRequestIP(b *testing.B) {
network := &net.IPNet{
IP: []byte{192, 168, 0, 1},
Mask: []byte{255, 255, 255, 0},
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
for j := 0; j < 253; j++ {
_, err := RequestIP(network, nil)
if err != nil {
b.Fatal(err)
}
}
reset()
}
}

10
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/network.go generated vendored Normal file
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@ -0,0 +1,10 @@
package networkdriver
import (
"errors"
)
var (
ErrNetworkOverlapsWithNameservers = errors.New("requested network overlaps with nameserver")
ErrNetworkOverlaps = errors.New("requested network overlaps with existing network")
)

175
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/network_test.go generated vendored Normal file
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@ -0,0 +1,175 @@
package networkdriver
import (
"github.com/docker/libcontainer/netlink"
"net"
"testing"
)
func TestNonOverlapingNameservers(t *testing.T) {
network := &net.IPNet{
IP: []byte{192, 168, 0, 1},
Mask: []byte{255, 255, 255, 0},
}
nameservers := []string{
"127.0.0.1/32",
}
if err := CheckNameserverOverlaps(nameservers, network); err != nil {
t.Fatal(err)
}
}
func TestOverlapingNameservers(t *testing.T) {
network := &net.IPNet{
IP: []byte{192, 168, 0, 1},
Mask: []byte{255, 255, 255, 0},
}
nameservers := []string{
"192.168.0.1/32",
}
if err := CheckNameserverOverlaps(nameservers, network); err == nil {
t.Fatalf("Expected error %s got %s", ErrNetworkOverlapsWithNameservers, err)
}
}
func TestCheckRouteOverlaps(t *testing.T) {
orig := networkGetRoutesFct
defer func() {
networkGetRoutesFct = orig
}()
networkGetRoutesFct = func() ([]netlink.Route, error) {
routesData := []string{"10.0.2.0/32", "10.0.3.0/24", "10.0.42.0/24", "172.16.42.0/24", "192.168.142.0/24"}
routes := []netlink.Route{}
for _, addr := range routesData {
_, netX, _ := net.ParseCIDR(addr)
routes = append(routes, netlink.Route{IPNet: netX})
}
return routes, nil
}
_, netX, _ := net.ParseCIDR("172.16.0.1/24")
if err := CheckRouteOverlaps(netX); err != nil {
t.Fatal(err)
}
_, netX, _ = net.ParseCIDR("10.0.2.0/24")
if err := CheckRouteOverlaps(netX); err == nil {
t.Fatalf("10.0.2.0/24 and 10.0.2.0 should overlap but it doesn't")
}
}
func TestCheckNameserverOverlaps(t *testing.T) {
nameservers := []string{"10.0.2.3/32", "192.168.102.1/32"}
_, netX, _ := net.ParseCIDR("10.0.2.3/32")
if err := CheckNameserverOverlaps(nameservers, netX); err == nil {
t.Fatalf("%s should overlap 10.0.2.3/32 but doesn't", netX)
}
_, netX, _ = net.ParseCIDR("192.168.102.2/32")
if err := CheckNameserverOverlaps(nameservers, netX); err != nil {
t.Fatalf("%s should not overlap %v but it does", netX, nameservers)
}
}
func AssertOverlap(CIDRx string, CIDRy string, t *testing.T) {
_, netX, _ := net.ParseCIDR(CIDRx)
_, netY, _ := net.ParseCIDR(CIDRy)
if !NetworkOverlaps(netX, netY) {
t.Errorf("%v and %v should overlap", netX, netY)
}
}
func AssertNoOverlap(CIDRx string, CIDRy string, t *testing.T) {
_, netX, _ := net.ParseCIDR(CIDRx)
_, netY, _ := net.ParseCIDR(CIDRy)
if NetworkOverlaps(netX, netY) {
t.Errorf("%v and %v should not overlap", netX, netY)
}
}
func TestNetworkOverlaps(t *testing.T) {
//netY starts at same IP and ends within netX
AssertOverlap("172.16.0.1/24", "172.16.0.1/25", t)
//netY starts within netX and ends at same IP
AssertOverlap("172.16.0.1/24", "172.16.0.128/25", t)
//netY starts and ends within netX
AssertOverlap("172.16.0.1/24", "172.16.0.64/25", t)
//netY starts at same IP and ends outside of netX
AssertOverlap("172.16.0.1/24", "172.16.0.1/23", t)
//netY starts before and ends at same IP of netX
AssertOverlap("172.16.1.1/24", "172.16.0.1/23", t)
//netY starts before and ends outside of netX
AssertOverlap("172.16.1.1/24", "172.16.0.1/22", t)
//netY starts and ends before netX
AssertNoOverlap("172.16.1.1/25", "172.16.0.1/24", t)
//netX starts and ends before netY
AssertNoOverlap("172.16.1.1/25", "172.16.2.1/24", t)
}
func TestNetworkRange(t *testing.T) {
// Simple class C test
_, network, _ := net.ParseCIDR("192.168.0.1/24")
first, last := NetworkRange(network)
if !first.Equal(net.ParseIP("192.168.0.0")) {
t.Error(first.String())
}
if !last.Equal(net.ParseIP("192.168.0.255")) {
t.Error(last.String())
}
// Class A test
_, network, _ = net.ParseCIDR("10.0.0.1/8")
first, last = NetworkRange(network)
if !first.Equal(net.ParseIP("10.0.0.0")) {
t.Error(first.String())
}
if !last.Equal(net.ParseIP("10.255.255.255")) {
t.Error(last.String())
}
// Class A, random IP address
_, network, _ = net.ParseCIDR("10.1.2.3/8")
first, last = NetworkRange(network)
if !first.Equal(net.ParseIP("10.0.0.0")) {
t.Error(first.String())
}
if !last.Equal(net.ParseIP("10.255.255.255")) {
t.Error(last.String())
}
// 32bit mask
_, network, _ = net.ParseCIDR("10.1.2.3/32")
first, last = NetworkRange(network)
if !first.Equal(net.ParseIP("10.1.2.3")) {
t.Error(first.String())
}
if !last.Equal(net.ParseIP("10.1.2.3")) {
t.Error(last.String())
}
// 31bit mask
_, network, _ = net.ParseCIDR("10.1.2.3/31")
first, last = NetworkRange(network)
if !first.Equal(net.ParseIP("10.1.2.2")) {
t.Error(first.String())
}
if !last.Equal(net.ParseIP("10.1.2.3")) {
t.Error(last.String())
}
// 26bit mask
_, network, _ = net.ParseCIDR("10.1.2.3/26")
first, last = NetworkRange(network)
if !first.Equal(net.ParseIP("10.1.2.0")) {
t.Error(first.String())
}
if !last.Equal(net.ParseIP("10.1.2.63")) {
t.Error(last.String())
}
}

153
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/portallocator/portallocator.go generated vendored Normal file
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@ -0,0 +1,153 @@
package portallocator
import (
"errors"
"fmt"
"net"
"sync"
)
type portMap struct {
p map[int]struct{}
last int
}
func newPortMap() *portMap {
return &portMap{
p: map[int]struct{}{},
last: EndPortRange,
}
}
type protoMap map[string]*portMap
func newProtoMap() protoMap {
return protoMap{
"tcp": newPortMap(),
"udp": newPortMap(),
}
}
type ipMapping map[string]protoMap
const (
BeginPortRange = 49153
EndPortRange = 65535
)
var (
ErrAllPortsAllocated = errors.New("all ports are allocated")
ErrUnknownProtocol = errors.New("unknown protocol")
)
var (
mutex sync.Mutex
defaultIP = net.ParseIP("0.0.0.0")
globalMap = ipMapping{}
)
type ErrPortAlreadyAllocated struct {
ip string
port int
}
func NewErrPortAlreadyAllocated(ip string, port int) ErrPortAlreadyAllocated {
return ErrPortAlreadyAllocated{
ip: ip,
port: port,
}
}
func (e ErrPortAlreadyAllocated) IP() string {
return e.ip
}
func (e ErrPortAlreadyAllocated) Port() int {
return e.port
}
func (e ErrPortAlreadyAllocated) IPPort() string {
return fmt.Sprintf("%s:%d", e.ip, e.port)
}
func (e ErrPortAlreadyAllocated) Error() string {
return fmt.Sprintf("Bind for %s:%d failed: port is already allocated", e.ip, e.port)
}
// RequestPort requests new port from global ports pool for specified ip and proto.
// If port is 0 it returns first free port. Otherwise it cheks port availability
// in pool and return that port or error if port is already busy.
func RequestPort(ip net.IP, proto string, port int) (int, error) {
mutex.Lock()
defer mutex.Unlock()
if proto != "tcp" && proto != "udp" {
return 0, ErrUnknownProtocol
}
if ip == nil {
ip = defaultIP
}
ipstr := ip.String()
protomap, ok := globalMap[ipstr]
if !ok {
protomap = newProtoMap()
globalMap[ipstr] = protomap
}
mapping := protomap[proto]
if port > 0 {
if _, ok := mapping.p[port]; !ok {
mapping.p[port] = struct{}{}
return port, nil
}
return 0, NewErrPortAlreadyAllocated(ipstr, port)
}
port, err := mapping.findPort()
if err != nil {
return 0, err
}
return port, nil
}
// ReleasePort releases port from global ports pool for specified ip and proto.
func ReleasePort(ip net.IP, proto string, port int) error {
mutex.Lock()
defer mutex.Unlock()
if ip == nil {
ip = defaultIP
}
protomap, ok := globalMap[ip.String()]
if !ok {
return nil
}
delete(protomap[proto].p, port)
return nil
}
// ReleaseAll releases all ports for all ips.
func ReleaseAll() error {
mutex.Lock()
globalMap = ipMapping{}
mutex.Unlock()
return nil
}
func (pm *portMap) findPort() (int, error) {
port := pm.last
for i := 0; i <= EndPortRange-BeginPortRange; i++ {
port++
if port > EndPortRange {
port = BeginPortRange
}
if _, ok := pm.p[port]; !ok {
pm.p[port] = struct{}{}
pm.last = port
return port, nil
}
}
return 0, ErrAllPortsAllocated
}

245
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/portallocator/portallocator_test.go generated vendored Normal file
View file

@ -0,0 +1,245 @@
package portallocator
import (
"net"
"testing"
)
func reset() {
ReleaseAll()
}
func TestRequestNewPort(t *testing.T) {
defer reset()
port, err := RequestPort(defaultIP, "tcp", 0)
if err != nil {
t.Fatal(err)
}
if expected := BeginPortRange; port != expected {
t.Fatalf("Expected port %d got %d", expected, port)
}
}
func TestRequestSpecificPort(t *testing.T) {
defer reset()
port, err := RequestPort(defaultIP, "tcp", 5000)
if err != nil {
t.Fatal(err)
}
if port != 5000 {
t.Fatalf("Expected port 5000 got %d", port)
}
}
func TestReleasePort(t *testing.T) {
defer reset()
port, err := RequestPort(defaultIP, "tcp", 5000)
if err != nil {
t.Fatal(err)
}
if port != 5000 {
t.Fatalf("Expected port 5000 got %d", port)
}
if err := ReleasePort(defaultIP, "tcp", 5000); err != nil {
t.Fatal(err)
}
}
func TestReuseReleasedPort(t *testing.T) {
defer reset()
port, err := RequestPort(defaultIP, "tcp", 5000)
if err != nil {
t.Fatal(err)
}
if port != 5000 {
t.Fatalf("Expected port 5000 got %d", port)
}
if err := ReleasePort(defaultIP, "tcp", 5000); err != nil {
t.Fatal(err)
}
port, err = RequestPort(defaultIP, "tcp", 5000)
if err != nil {
t.Fatal(err)
}
}
func TestReleaseUnreadledPort(t *testing.T) {
defer reset()
port, err := RequestPort(defaultIP, "tcp", 5000)
if err != nil {
t.Fatal(err)
}
if port != 5000 {
t.Fatalf("Expected port 5000 got %d", port)
}
port, err = RequestPort(defaultIP, "tcp", 5000)
switch err.(type) {
case ErrPortAlreadyAllocated:
default:
t.Fatalf("Expected port allocation error got %s", err)
}
}
func TestUnknowProtocol(t *testing.T) {
defer reset()
if _, err := RequestPort(defaultIP, "tcpp", 0); err != ErrUnknownProtocol {
t.Fatalf("Expected error %s got %s", ErrUnknownProtocol, err)
}
}
func TestAllocateAllPorts(t *testing.T) {
defer reset()
for i := 0; i <= EndPortRange-BeginPortRange; i++ {
port, err := RequestPort(defaultIP, "tcp", 0)
if err != nil {
t.Fatal(err)
}
if expected := BeginPortRange + i; port != expected {
t.Fatalf("Expected port %d got %d", expected, port)
}
}
if _, err := RequestPort(defaultIP, "tcp", 0); err != ErrAllPortsAllocated {
t.Fatalf("Expected error %s got %s", ErrAllPortsAllocated, err)
}
_, err := RequestPort(defaultIP, "udp", 0)
if err != nil {
t.Fatal(err)
}
// release a port in the middle and ensure we get another tcp port
port := BeginPortRange + 5
if err := ReleasePort(defaultIP, "tcp", port); err != nil {
t.Fatal(err)
}
newPort, err := RequestPort(defaultIP, "tcp", 0)
if err != nil {
t.Fatal(err)
}
if newPort != port {
t.Fatalf("Expected port %d got %d", port, newPort)
}
// now pm.last == newPort, release it so that it's the only free port of
// the range, and ensure we get it back
if err := ReleasePort(defaultIP, "tcp", newPort); err != nil {
t.Fatal(err)
}
port, err = RequestPort(defaultIP, "tcp", 0)
if err != nil {
t.Fatal(err)
}
if newPort != port {
t.Fatalf("Expected port %d got %d", newPort, port)
}
}
func BenchmarkAllocatePorts(b *testing.B) {
defer reset()
for i := 0; i < b.N; i++ {
for i := 0; i <= EndPortRange-BeginPortRange; i++ {
port, err := RequestPort(defaultIP, "tcp", 0)
if err != nil {
b.Fatal(err)
}
if expected := BeginPortRange + i; port != expected {
b.Fatalf("Expected port %d got %d", expected, port)
}
}
reset()
}
}
func TestPortAllocation(t *testing.T) {
defer reset()
ip := net.ParseIP("192.168.0.1")
ip2 := net.ParseIP("192.168.0.2")
if port, err := RequestPort(ip, "tcp", 80); err != nil {
t.Fatal(err)
} else if port != 80 {
t.Fatalf("Acquire(80) should return 80, not %d", port)
}
port, err := RequestPort(ip, "tcp", 0)
if err != nil {
t.Fatal(err)
}
if port <= 0 {
t.Fatalf("Acquire(0) should return a non-zero port")
}
if _, err := RequestPort(ip, "tcp", port); err == nil {
t.Fatalf("Acquiring a port already in use should return an error")
}
if newPort, err := RequestPort(ip, "tcp", 0); err != nil {
t.Fatal(err)
} else if newPort == port {
t.Fatalf("Acquire(0) allocated the same port twice: %d", port)
}
if _, err := RequestPort(ip, "tcp", 80); err == nil {
t.Fatalf("Acquiring a port already in use should return an error")
}
if _, err := RequestPort(ip2, "tcp", 80); err != nil {
t.Fatalf("It should be possible to allocate the same port on a different interface")
}
if _, err := RequestPort(ip2, "tcp", 80); err == nil {
t.Fatalf("Acquiring a port already in use should return an error")
}
if err := ReleasePort(ip, "tcp", 80); err != nil {
t.Fatal(err)
}
if _, err := RequestPort(ip, "tcp", 80); err != nil {
t.Fatal(err)
}
port, err = RequestPort(ip, "tcp", 0)
if err != nil {
t.Fatal(err)
}
port2, err := RequestPort(ip, "tcp", port+1)
if err != nil {
t.Fatal(err)
}
port3, err := RequestPort(ip, "tcp", 0)
if err != nil {
t.Fatal(err)
}
if port3 == port2 {
t.Fatal("Requesting a dynamic port should never allocate a used port")
}
}
func TestNoDuplicateBPR(t *testing.T) {
defer reset()
if port, err := RequestPort(defaultIP, "tcp", BeginPortRange); err != nil {
t.Fatal(err)
} else if port != BeginPortRange {
t.Fatalf("Expected port %d got %d", BeginPortRange, port)
}
if port, err := RequestPort(defaultIP, "tcp", 0); err != nil {
t.Fatal(err)
} else if port == BeginPortRange {
t.Fatalf("Acquire(0) allocated the same port twice: %d", port)
}
}

176
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/portmapper/mapper.go generated vendored Normal file
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@ -0,0 +1,176 @@
package portmapper
import (
"errors"
"fmt"
"net"
"sync"
log "github.com/Sirupsen/logrus"
"github.com/docker/docker/daemon/networkdriver/portallocator"
"github.com/docker/docker/pkg/iptables"
)
type mapping struct {
proto string
userlandProxy UserlandProxy
host net.Addr
container net.Addr
}
var (
chain *iptables.Chain
lock sync.Mutex
// udp:ip:port
currentMappings = make(map[string]*mapping)
NewProxy = NewProxyCommand
)
var (
ErrUnknownBackendAddressType = errors.New("unknown container address type not supported")
ErrPortMappedForIP = errors.New("port is already mapped to ip")
ErrPortNotMapped = errors.New("port is not mapped")
)
func SetIptablesChain(c *iptables.Chain) {
chain = c
}
func Map(container net.Addr, hostIP net.IP, hostPort int) (host net.Addr, err error) {
lock.Lock()
defer lock.Unlock()
var (
m *mapping
proto string
allocatedHostPort int
proxy UserlandProxy
)
switch container.(type) {
case *net.TCPAddr:
proto = "tcp"
if allocatedHostPort, err = portallocator.RequestPort(hostIP, proto, hostPort); err != nil {
return nil, err
}
m = &mapping{
proto: proto,
host: &net.TCPAddr{IP: hostIP, Port: allocatedHostPort},
container: container,
}
proxy = NewProxy(proto, hostIP, allocatedHostPort, container.(*net.TCPAddr).IP, container.(*net.TCPAddr).Port)
case *net.UDPAddr:
proto = "udp"
if allocatedHostPort, err = portallocator.RequestPort(hostIP, proto, hostPort); err != nil {
return nil, err
}
m = &mapping{
proto: proto,
host: &net.UDPAddr{IP: hostIP, Port: allocatedHostPort},
container: container,
}
proxy = NewProxy(proto, hostIP, allocatedHostPort, container.(*net.UDPAddr).IP, container.(*net.UDPAddr).Port)
default:
return nil, ErrUnknownBackendAddressType
}
// release the allocated port on any further error during return.
defer func() {
if err != nil {
portallocator.ReleasePort(hostIP, proto, allocatedHostPort)
}
}()
key := getKey(m.host)
if _, exists := currentMappings[key]; exists {
return nil, ErrPortMappedForIP
}
containerIP, containerPort := getIPAndPort(m.container)
if err := forward(iptables.Append, m.proto, hostIP, allocatedHostPort, containerIP.String(), containerPort); err != nil {
return nil, err
}
cleanup := func() error {
// need to undo the iptables rules before we return
proxy.Stop()
forward(iptables.Delete, m.proto, hostIP, allocatedHostPort, containerIP.String(), containerPort)
if err := portallocator.ReleasePort(hostIP, m.proto, allocatedHostPort); err != nil {
return err
}
return nil
}
if err := proxy.Start(); err != nil {
if err := cleanup(); err != nil {
return nil, fmt.Errorf("Error during port allocation cleanup: %v", err)
}
return nil, err
}
m.userlandProxy = proxy
currentMappings[key] = m
return m.host, nil
}
func Unmap(host net.Addr) error {
lock.Lock()
defer lock.Unlock()
key := getKey(host)
data, exists := currentMappings[key]
if !exists {
return ErrPortNotMapped
}
data.userlandProxy.Stop()
delete(currentMappings, key)
containerIP, containerPort := getIPAndPort(data.container)
hostIP, hostPort := getIPAndPort(data.host)
if err := forward(iptables.Delete, data.proto, hostIP, hostPort, containerIP.String(), containerPort); err != nil {
log.Errorf("Error on iptables delete: %s", err)
}
switch a := host.(type) {
case *net.TCPAddr:
return portallocator.ReleasePort(a.IP, "tcp", a.Port)
case *net.UDPAddr:
return portallocator.ReleasePort(a.IP, "udp", a.Port)
}
return nil
}
func getKey(a net.Addr) string {
switch t := a.(type) {
case *net.TCPAddr:
return fmt.Sprintf("%s:%d/%s", t.IP.String(), t.Port, "tcp")
case *net.UDPAddr:
return fmt.Sprintf("%s:%d/%s", t.IP.String(), t.Port, "udp")
}
return ""
}
func getIPAndPort(a net.Addr) (net.IP, int) {
switch t := a.(type) {
case *net.TCPAddr:
return t.IP, t.Port
case *net.UDPAddr:
return t.IP, t.Port
}
return nil, 0
}
func forward(action iptables.Action, proto string, sourceIP net.IP, sourcePort int, containerIP string, containerPort int) error {
if chain == nil {
return nil
}
return chain.Forward(action, sourceIP, sourcePort, proto, containerIP, containerPort)
}

152
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/portmapper/mapper_test.go generated vendored Normal file
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@ -0,0 +1,152 @@
package portmapper
import (
"net"
"testing"
"github.com/docker/docker/daemon/networkdriver/portallocator"
"github.com/docker/docker/pkg/iptables"
)
func init() {
// override this func to mock out the proxy server
NewProxy = NewMockProxyCommand
}
func reset() {
chain = nil
currentMappings = make(map[string]*mapping)
}
func TestSetIptablesChain(t *testing.T) {
defer reset()
c := &iptables.Chain{
Name: "TEST",
Bridge: "192.168.1.1",
}
if chain != nil {
t.Fatal("chain should be nil at init")
}
SetIptablesChain(c)
if chain == nil {
t.Fatal("chain should not be nil after set")
}
}
func TestMapPorts(t *testing.T) {
dstIp1 := net.ParseIP("192.168.0.1")
dstIp2 := net.ParseIP("192.168.0.2")
dstAddr1 := &net.TCPAddr{IP: dstIp1, Port: 80}
dstAddr2 := &net.TCPAddr{IP: dstIp2, Port: 80}
srcAddr1 := &net.TCPAddr{Port: 1080, IP: net.ParseIP("172.16.0.1")}
srcAddr2 := &net.TCPAddr{Port: 1080, IP: net.ParseIP("172.16.0.2")}
addrEqual := func(addr1, addr2 net.Addr) bool {
return (addr1.Network() == addr2.Network()) && (addr1.String() == addr2.String())
}
if host, err := Map(srcAddr1, dstIp1, 80); err != nil {
t.Fatalf("Failed to allocate port: %s", err)
} else if !addrEqual(dstAddr1, host) {
t.Fatalf("Incorrect mapping result: expected %s:%s, got %s:%s",
dstAddr1.String(), dstAddr1.Network(), host.String(), host.Network())
}
if _, err := Map(srcAddr1, dstIp1, 80); err == nil {
t.Fatalf("Port is in use - mapping should have failed")
}
if _, err := Map(srcAddr2, dstIp1, 80); err == nil {
t.Fatalf("Port is in use - mapping should have failed")
}
if _, err := Map(srcAddr2, dstIp2, 80); err != nil {
t.Fatalf("Failed to allocate port: %s", err)
}
if Unmap(dstAddr1) != nil {
t.Fatalf("Failed to release port")
}
if Unmap(dstAddr2) != nil {
t.Fatalf("Failed to release port")
}
if Unmap(dstAddr2) == nil {
t.Fatalf("Port already released, but no error reported")
}
}
func TestGetUDPKey(t *testing.T) {
addr := &net.UDPAddr{IP: net.ParseIP("192.168.1.5"), Port: 53}
key := getKey(addr)
if expected := "192.168.1.5:53/udp"; key != expected {
t.Fatalf("expected key %s got %s", expected, key)
}
}
func TestGetTCPKey(t *testing.T) {
addr := &net.TCPAddr{IP: net.ParseIP("192.168.1.5"), Port: 80}
key := getKey(addr)
if expected := "192.168.1.5:80/tcp"; key != expected {
t.Fatalf("expected key %s got %s", expected, key)
}
}
func TestGetUDPIPAndPort(t *testing.T) {
addr := &net.UDPAddr{IP: net.ParseIP("192.168.1.5"), Port: 53}
ip, port := getIPAndPort(addr)
if expected := "192.168.1.5"; ip.String() != expected {
t.Fatalf("expected ip %s got %s", expected, ip)
}
if ep := 53; port != ep {
t.Fatalf("expected port %d got %d", ep, port)
}
}
func TestMapAllPortsSingleInterface(t *testing.T) {
dstIp1 := net.ParseIP("0.0.0.0")
srcAddr1 := &net.TCPAddr{Port: 1080, IP: net.ParseIP("172.16.0.1")}
hosts := []net.Addr{}
var host net.Addr
var err error
defer func() {
for _, val := range hosts {
Unmap(val)
}
}()
for i := 0; i < 10; i++ {
for i := portallocator.BeginPortRange; i < portallocator.EndPortRange; i++ {
if host, err = Map(srcAddr1, dstIp1, 0); err != nil {
t.Fatal(err)
}
hosts = append(hosts, host)
}
if _, err := Map(srcAddr1, dstIp1, portallocator.BeginPortRange); err == nil {
t.Fatalf("Port %d should be bound but is not", portallocator.BeginPortRange)
}
for _, val := range hosts {
if err := Unmap(val); err != nil {
t.Fatal(err)
}
}
hosts = []net.Addr{}
}
}

18
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/portmapper/mock_proxy.go generated vendored Normal file
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@ -0,0 +1,18 @@
package portmapper
import "net"
func NewMockProxyCommand(proto string, hostIP net.IP, hostPort int, containerIP net.IP, containerPort int) UserlandProxy {
return &mockProxyCommand{}
}
type mockProxyCommand struct {
}
func (p *mockProxyCommand) Start() error {
return nil
}
func (p *mockProxyCommand) Stop() error {
return nil
}

161
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/portmapper/proxy.go generated vendored Normal file
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@ -0,0 +1,161 @@
package portmapper
import (
"flag"
"fmt"
"io/ioutil"
"log"
"net"
"os"
"os/exec"
"os/signal"
"strconv"
"syscall"
"time"
"github.com/docker/docker/pkg/proxy"
"github.com/docker/docker/pkg/reexec"
)
const userlandProxyCommandName = "docker-proxy"
func init() {
reexec.Register(userlandProxyCommandName, execProxy)
}
type UserlandProxy interface {
Start() error
Stop() error
}
// proxyCommand wraps an exec.Cmd to run the userland TCP and UDP
// proxies as separate processes.
type proxyCommand struct {
cmd *exec.Cmd
}
// execProxy is the reexec function that is registered to start the userland proxies
func execProxy() {
f := os.NewFile(3, "signal-parent")
host, container := parseHostContainerAddrs()
p, err := proxy.NewProxy(host, container)
if err != nil {
fmt.Fprintf(f, "1\n%s", err)
f.Close()
os.Exit(1)
}
go handleStopSignals(p)
fmt.Fprint(f, "0\n")
f.Close()
// Run will block until the proxy stops
p.Run()
}
// parseHostContainerAddrs parses the flags passed on reexec to create the TCP or UDP
// net.Addrs to map the host and container ports
func parseHostContainerAddrs() (host net.Addr, container net.Addr) {
var (
proto = flag.String("proto", "tcp", "proxy protocol")
hostIP = flag.String("host-ip", "", "host ip")
hostPort = flag.Int("host-port", -1, "host port")
containerIP = flag.String("container-ip", "", "container ip")
containerPort = flag.Int("container-port", -1, "container port")
)
flag.Parse()
switch *proto {
case "tcp":
host = &net.TCPAddr{IP: net.ParseIP(*hostIP), Port: *hostPort}
container = &net.TCPAddr{IP: net.ParseIP(*containerIP), Port: *containerPort}
case "udp":
host = &net.UDPAddr{IP: net.ParseIP(*hostIP), Port: *hostPort}
container = &net.UDPAddr{IP: net.ParseIP(*containerIP), Port: *containerPort}
default:
log.Fatalf("unsupported protocol %s", *proto)
}
return host, container
}
func handleStopSignals(p proxy.Proxy) {
s := make(chan os.Signal, 10)
signal.Notify(s, os.Interrupt, syscall.SIGTERM, syscall.SIGSTOP)
for _ = range s {
p.Close()
os.Exit(0)
}
}
func NewProxyCommand(proto string, hostIP net.IP, hostPort int, containerIP net.IP, containerPort int) UserlandProxy {
args := []string{
userlandProxyCommandName,
"-proto", proto,
"-host-ip", hostIP.String(),
"-host-port", strconv.Itoa(hostPort),
"-container-ip", containerIP.String(),
"-container-port", strconv.Itoa(containerPort),
}
return &proxyCommand{
cmd: &exec.Cmd{
Path: reexec.Self(),
Args: args,
SysProcAttr: &syscall.SysProcAttr{
Pdeathsig: syscall.SIGTERM, // send a sigterm to the proxy if the daemon process dies
},
},
}
}
func (p *proxyCommand) Start() error {
r, w, err := os.Pipe()
if err != nil {
return fmt.Errorf("proxy unable to open os.Pipe %s", err)
}
defer r.Close()
p.cmd.ExtraFiles = []*os.File{w}
if err := p.cmd.Start(); err != nil {
return err
}
w.Close()
errchan := make(chan error, 1)
go func() {
buf := make([]byte, 2)
r.Read(buf)
if string(buf) != "0\n" {
errStr, err := ioutil.ReadAll(r)
if err != nil {
errchan <- fmt.Errorf("Error reading exit status from userland proxy: %v", err)
return
}
errchan <- fmt.Errorf("Error starting userland proxy: %s", errStr)
return
}
errchan <- nil
}()
select {
case err := <-errchan:
return err
case <-time.After(16 * time.Second):
return fmt.Errorf("Timed out proxy starting the userland proxy")
}
}
func (p *proxyCommand) Stop() error {
if p.cmd.Process != nil {
if err := p.cmd.Process.Signal(os.Interrupt); err != nil {
return err
}
return p.cmd.Wait()
}
return nil
}

118
libnetwork/Godeps/_workspace/src/github.com/docker/docker/daemon/networkdriver/utils.go generated vendored Normal file
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@ -0,0 +1,118 @@
package networkdriver
import (
"errors"
"fmt"
"net"
"github.com/docker/libcontainer/netlink"
)
var (
networkGetRoutesFct = netlink.NetworkGetRoutes
ErrNoDefaultRoute = errors.New("no default route")
)
func CheckNameserverOverlaps(nameservers []string, toCheck *net.IPNet) error {
if len(nameservers) > 0 {
for _, ns := range nameservers {
_, nsNetwork, err := net.ParseCIDR(ns)
if err != nil {
return err
}
if NetworkOverlaps(toCheck, nsNetwork) {
return ErrNetworkOverlapsWithNameservers
}
}
}
return nil
}
func CheckRouteOverlaps(toCheck *net.IPNet) error {
networks, err := networkGetRoutesFct()
if err != nil {
return err
}
for _, network := range networks {
if network.IPNet != nil && NetworkOverlaps(toCheck, network.IPNet) {
return ErrNetworkOverlaps
}
}
return nil
}
// Detects overlap between one IPNet and another
func NetworkOverlaps(netX *net.IPNet, netY *net.IPNet) bool {
if len(netX.IP) == len(netY.IP) {
if firstIP, _ := NetworkRange(netX); netY.Contains(firstIP) {
return true
}
if firstIP, _ := NetworkRange(netY); netX.Contains(firstIP) {
return true
}
}
return false
}
// Calculates the first and last IP addresses in an IPNet
func NetworkRange(network *net.IPNet) (net.IP, net.IP) {
var netIP net.IP
if network.IP.To4() != nil {
netIP = network.IP.To4()
} else if network.IP.To16() != nil {
netIP = network.IP.To16()
} else {
return nil, nil
}
lastIP := make([]byte, len(netIP), len(netIP))
for i := 0; i < len(netIP); i++ {
lastIP[i] = netIP[i] | ^network.Mask[i]
}
return netIP.Mask(network.Mask), net.IP(lastIP)
}
// Return the first IPv4 address and slice of IPv6 addresses for the specified network interface
func GetIfaceAddr(name string) (net.Addr, []net.Addr, error) {
iface, err := net.InterfaceByName(name)
if err != nil {
return nil, nil, err
}
addrs, err := iface.Addrs()
if err != nil {
return nil, nil, err
}
var addrs4 []net.Addr
var addrs6 []net.Addr
for _, addr := range addrs {
ip := (addr.(*net.IPNet)).IP
if ip4 := ip.To4(); ip4 != nil {
addrs4 = append(addrs4, addr)
} else if ip6 := ip.To16(); len(ip6) == net.IPv6len {
addrs6 = append(addrs6, addr)
}
}
switch {
case len(addrs4) == 0:
return nil, nil, fmt.Errorf("Interface %v has no IPv4 addresses", name)
case len(addrs4) > 1:
fmt.Printf("Interface %v has more than 1 IPv4 address. Defaulting to using %v\n",
name, (addrs4[0].(*net.IPNet)).IP)
}
return addrs4[0], addrs6, nil
}
func GetDefaultRouteIface() (*net.Interface, error) {
rs, err := networkGetRoutesFct()
if err != nil {
return nil, fmt.Errorf("unable to get routes: %v", err)
}
for _, r := range rs {
if r.Default {
return r.Iface, nil
}
}
return nil, ErrNoDefaultRoute
}

93
libnetwork/Godeps/_workspace/src/github.com/docker/docker/pkg/parsers/kernel/kernel.go generated vendored Normal file
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@ -0,0 +1,93 @@
package kernel
import (
"bytes"
"errors"
"fmt"
)
type KernelVersionInfo struct {
Kernel int
Major int
Minor int
Flavor string
}
func (k *KernelVersionInfo) String() string {
return fmt.Sprintf("%d.%d.%d%s", k.Kernel, k.Major, k.Minor, k.Flavor)
}
// Compare two KernelVersionInfo struct.
// Returns -1 if a < b, 0 if a == b, 1 it a > b
func CompareKernelVersion(a, b *KernelVersionInfo) int {
if a.Kernel < b.Kernel {
return -1
} else if a.Kernel > b.Kernel {
return 1
}
if a.Major < b.Major {
return -1
} else if a.Major > b.Major {
return 1
}
if a.Minor < b.Minor {
return -1
} else if a.Minor > b.Minor {
return 1
}
return 0
}
func GetKernelVersion() (*KernelVersionInfo, error) {
var (
err error
)
uts, err := uname()
if err != nil {
return nil, err
}
release := make([]byte, len(uts.Release))
i := 0
for _, c := range uts.Release {
release[i] = byte(c)
i++
}
// Remove the \x00 from the release for Atoi to parse correctly
release = release[:bytes.IndexByte(release, 0)]
return ParseRelease(string(release))
}
func ParseRelease(release string) (*KernelVersionInfo, error) {
var (
kernel, major, minor, parsed int
flavor, partial string
)
// Ignore error from Sscanf to allow an empty flavor. Instead, just
// make sure we got all the version numbers.
parsed, _ = fmt.Sscanf(release, "%d.%d%s", &kernel, &major, &partial)
if parsed < 2 {
return nil, errors.New("Can't parse kernel version " + release)
}
// sometimes we have 3.12.25-gentoo, but sometimes we just have 3.12-1-amd64
parsed, _ = fmt.Sscanf(partial, ".%d%s", &minor, &flavor)
if parsed < 1 {
flavor = partial
}
return &KernelVersionInfo{
Kernel: kernel,
Major: major,
Minor: minor,
Flavor: flavor,
}, nil
}

61
libnetwork/Godeps/_workspace/src/github.com/docker/docker/pkg/parsers/kernel/kernel_test.go generated vendored Normal file
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@ -0,0 +1,61 @@
package kernel
import (
"testing"
)
func assertParseRelease(t *testing.T, release string, b *KernelVersionInfo, result int) {
var (
a *KernelVersionInfo
)
a, _ = ParseRelease(release)
if r := CompareKernelVersion(a, b); r != result {
t.Fatalf("Unexpected kernel version comparison result. Found %d, expected %d", r, result)
}
if a.Flavor != b.Flavor {
t.Fatalf("Unexpected parsed kernel flavor. Found %s, expected %s", a.Flavor, b.Flavor)
}
}
func TestParseRelease(t *testing.T) {
assertParseRelease(t, "3.8.0", &KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0}, 0)
assertParseRelease(t, "3.4.54.longterm-1", &KernelVersionInfo{Kernel: 3, Major: 4, Minor: 54, Flavor: ".longterm-1"}, 0)
assertParseRelease(t, "3.4.54.longterm-1", &KernelVersionInfo{Kernel: 3, Major: 4, Minor: 54, Flavor: ".longterm-1"}, 0)
assertParseRelease(t, "3.8.0-19-generic", &KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0, Flavor: "-19-generic"}, 0)
assertParseRelease(t, "3.12.8tag", &KernelVersionInfo{Kernel: 3, Major: 12, Minor: 8, Flavor: "tag"}, 0)
assertParseRelease(t, "3.12-1-amd64", &KernelVersionInfo{Kernel: 3, Major: 12, Minor: 0, Flavor: "-1-amd64"}, 0)
}
func assertKernelVersion(t *testing.T, a, b *KernelVersionInfo, result int) {
if r := CompareKernelVersion(a, b); r != result {
t.Fatalf("Unexpected kernel version comparison result. Found %d, expected %d", r, result)
}
}
func TestCompareKernelVersion(t *testing.T) {
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
0)
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 2, Major: 6, Minor: 0},
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
-1)
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
&KernelVersionInfo{Kernel: 2, Major: 6, Minor: 0},
1)
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
0)
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 5},
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
1)
assertKernelVersion(t,
&KernelVersionInfo{Kernel: 3, Major: 0, Minor: 20},
&KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0},
-1)
}

16
libnetwork/Godeps/_workspace/src/github.com/docker/docker/pkg/parsers/kernel/uname_linux.go generated vendored Normal file
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@ -0,0 +1,16 @@
package kernel
import (
"syscall"
)
type Utsname syscall.Utsname
func uname() (*syscall.Utsname, error) {
uts := &syscall.Utsname{}
if err := syscall.Uname(uts); err != nil {
return nil, err
}
return uts, nil
}

15
libnetwork/Godeps/_workspace/src/github.com/docker/docker/pkg/parsers/kernel/uname_unsupported.go generated vendored Normal file
View file

@ -0,0 +1,15 @@
// +build !linux
package kernel
import (
"errors"
)
type Utsname struct {
Release [65]byte
}
func uname() (*Utsname, error) {
return nil, errors.New("Kernel version detection is available only on linux")
}

1
libnetwork/Godeps/_workspace/src/github.com/docker/docker/pkg/reexec/MAINTAINERS generated vendored Normal file
View file

@ -0,0 +1 @@
Michael Crosby <michael@docker.com> (@crosbymichael)

5
libnetwork/Godeps/_workspace/src/github.com/docker/docker/pkg/reexec/README.md generated vendored Normal file
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@ -0,0 +1,5 @@
## reexec
The `reexec` package facilitates the busybox style reexec of the docker binary that we require because
of the forking limitations of using Go. Handlers can be registered with a name and the argv 0 of
the exec of the binary will be used to find and execute custom init paths.

18
libnetwork/Godeps/_workspace/src/github.com/docker/docker/pkg/reexec/command_linux.go generated vendored Normal file
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@ -0,0 +1,18 @@
// +build linux
package reexec
import (
"os/exec"
"syscall"
)
func Command(args ...string) *exec.Cmd {
return &exec.Cmd{
Path: Self(),
Args: args,
SysProcAttr: &syscall.SysProcAttr{
Pdeathsig: syscall.SIGTERM,
},
}
}

11
libnetwork/Godeps/_workspace/src/github.com/docker/docker/pkg/reexec/command_unsupported.go generated vendored Normal file
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@ -0,0 +1,11 @@
// +build !linux
package reexec
import (
"os/exec"
)
func Command(args ...string) *exec.Cmd {
return nil
}

42
libnetwork/Godeps/_workspace/src/github.com/docker/docker/pkg/reexec/reexec.go generated vendored Normal file
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@ -0,0 +1,42 @@
package reexec
import (
"fmt"
"os"
"os/exec"
"path/filepath"
)
var registeredInitializers = make(map[string]func())
// Register adds an initialization func under the specified name
func Register(name string, initializer func()) {
if _, exists := registeredInitializers[name]; exists {
panic(fmt.Sprintf("reexec func already registred under name %q", name))
}
registeredInitializers[name] = initializer
}
// Init is called as the first part of the exec process and returns true if an
// initialization function was called.
func Init() bool {
initializer, exists := registeredInitializers[os.Args[0]]
if exists {
initializer()
return true
}
return false
}
// Self returns the path to the current processes binary
func Self() string {
name := os.Args[0]
if filepath.Base(name) == name {
if lp, err := exec.LookPath(name); err == nil {
name = lp
}
}
return name
}

2
libnetwork/Godeps/_workspace/src/github.com/docker/libcontainer/netlink/MAINTAINERS generated vendored Normal file
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@ -0,0 +1,2 @@
Michael Crosby <michael@crosbymichael.com> (@crosbymichael)
Guillaume J. Charmes <guillaume@docker.com> (@creack)

31
libnetwork/Godeps/_workspace/src/github.com/docker/libcontainer/netlink/netlink.go generated vendored Normal file
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@ -0,0 +1,31 @@
// Packet netlink provide access to low level Netlink sockets and messages.
//
// Actual implementations are in:
// netlink_linux.go
// netlink_darwin.go
package netlink
import (
"errors"
"net"
)
var (
ErrWrongSockType = errors.New("Wrong socket type")
ErrShortResponse = errors.New("Got short response from netlink")
ErrInterfaceExists = errors.New("Network interface already exists")
)
// A Route is a subnet associated with the interface to reach it.
type Route struct {
*net.IPNet
Iface *net.Interface
Default bool
}
// An IfAddr defines IP network settings for a given network interface
type IfAddr struct {
Iface *net.Interface
IP net.IP
IPNet *net.IPNet
}

1307
libnetwork/Godeps/_workspace/src/github.com/docker/libcontainer/netlink/netlink_linux.go generated vendored Normal file
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File diff suppressed because it is too large Load diff

5
libnetwork/Godeps/_workspace/src/github.com/docker/libcontainer/netlink/netlink_linux_arm.go generated vendored Normal file
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@ -0,0 +1,5 @@
package netlink
func ifrDataByte(b byte) uint8 {
return uint8(b)
}

7
libnetwork/Godeps/_workspace/src/github.com/docker/libcontainer/netlink/netlink_linux_notarm.go generated vendored Normal file
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@ -0,0 +1,7 @@
// +build !arm
package netlink
func ifrDataByte(b byte) int8 {
return int8(b)
}

408
libnetwork/Godeps/_workspace/src/github.com/docker/libcontainer/netlink/netlink_linux_test.go generated vendored Normal file
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@ -0,0 +1,408 @@
package netlink
import (
"net"
"strings"
"syscall"
"testing"
)
type testLink struct {
name string
linkType string
}
func addLink(t *testing.T, name string, linkType string) {
if err := NetworkLinkAdd(name, linkType); err != nil {
t.Fatalf("Unable to create %s link: %s", name, err)
}
}
func readLink(t *testing.T, name string) *net.Interface {
iface, err := net.InterfaceByName(name)
if err != nil {
t.Fatalf("Could not find %s interface: %s", name, err)
}
return iface
}
func deleteLink(t *testing.T, name string) {
if err := NetworkLinkDel(name); err != nil {
t.Fatalf("Unable to delete %s link: %s", name, err)
}
}
func upLink(t *testing.T, name string) {
iface := readLink(t, name)
if err := NetworkLinkUp(iface); err != nil {
t.Fatalf("Could not bring UP %#v interface: %s", iface, err)
}
}
func downLink(t *testing.T, name string) {
iface := readLink(t, name)
if err := NetworkLinkDown(iface); err != nil {
t.Fatalf("Could not bring DOWN %#v interface: %s", iface, err)
}
}
func ipAssigned(iface *net.Interface, ip net.IP) bool {
addrs, _ := iface.Addrs()
for _, addr := range addrs {
args := strings.SplitN(addr.String(), "/", 2)
if args[0] == ip.String() {
return true
}
}
return false
}
func TestNetworkLinkAddDel(t *testing.T) {
if testing.Short() {
return
}
testLinks := []testLink{
{"tstEth", "dummy"},
{"tstBr", "bridge"},
}
for _, tl := range testLinks {
addLink(t, tl.name, tl.linkType)
defer deleteLink(t, tl.name)
readLink(t, tl.name)
}
}
func TestNetworkLinkUpDown(t *testing.T) {
if testing.Short() {
return
}
tl := testLink{name: "tstEth", linkType: "dummy"}
addLink(t, tl.name, tl.linkType)
defer deleteLink(t, tl.name)
upLink(t, tl.name)
ifcAfterUp := readLink(t, tl.name)
if (ifcAfterUp.Flags & syscall.IFF_UP) != syscall.IFF_UP {
t.Fatalf("Could not bring UP %#v initerface", tl)
}
downLink(t, tl.name)
ifcAfterDown := readLink(t, tl.name)
if (ifcAfterDown.Flags & syscall.IFF_UP) == syscall.IFF_UP {
t.Fatalf("Could not bring DOWN %#v initerface", tl)
}
}
func TestNetworkSetMacAddress(t *testing.T) {
if testing.Short() {
return
}
tl := testLink{name: "tstEth", linkType: "dummy"}
macaddr := "22:ce:e0:99:63:6f"
addLink(t, tl.name, tl.linkType)
defer deleteLink(t, tl.name)
ifcBeforeSet := readLink(t, tl.name)
if err := NetworkSetMacAddress(ifcBeforeSet, macaddr); err != nil {
t.Fatalf("Could not set %s MAC address on %#v interface: %s", macaddr, tl, err)
}
ifcAfterSet := readLink(t, tl.name)
if ifcAfterSet.HardwareAddr.String() != macaddr {
t.Fatalf("Could not set %s MAC address on %#v interface", macaddr, tl)
}
}
func TestNetworkSetMTU(t *testing.T) {
if testing.Short() {
return
}
tl := testLink{name: "tstEth", linkType: "dummy"}
mtu := 1400
addLink(t, tl.name, tl.linkType)
defer deleteLink(t, tl.name)
ifcBeforeSet := readLink(t, tl.name)
if err := NetworkSetMTU(ifcBeforeSet, mtu); err != nil {
t.Fatalf("Could not set %d MTU on %#v interface: %s", mtu, tl, err)
}
ifcAfterSet := readLink(t, tl.name)
if ifcAfterSet.MTU != mtu {
t.Fatalf("Could not set %d MTU on %#v interface", mtu, tl)
}
}
func TestNetworkSetMasterNoMaster(t *testing.T) {
if testing.Short() {
return
}
master := testLink{"tstBr", "bridge"}
slave := testLink{"tstEth", "dummy"}
testLinks := []testLink{master, slave}
for _, tl := range testLinks {
addLink(t, tl.name, tl.linkType)
defer deleteLink(t, tl.name)
upLink(t, tl.name)
}
masterIfc := readLink(t, master.name)
slaveIfc := readLink(t, slave.name)
if err := NetworkSetMaster(slaveIfc, masterIfc); err != nil {
t.Fatalf("Could not set %#v to be the master of %#v: %s", master, slave, err)
}
// Trying to figure out a way to test which will not break on RHEL6.
// We could check for existence of /sys/class/net/tstEth/upper_tstBr
// which should point to the ../tstBr which is the UPPER device i.e. network bridge
if err := NetworkSetNoMaster(slaveIfc); err != nil {
t.Fatalf("Could not UNset %#v master of %#v: %s", master, slave, err)
}
}
func TestNetworkChangeName(t *testing.T) {
if testing.Short() {
return
}
tl := testLink{"tstEth", "dummy"}
newName := "newTst"
addLink(t, tl.name, tl.linkType)
linkIfc := readLink(t, tl.name)
if err := NetworkChangeName(linkIfc, newName); err != nil {
deleteLink(t, tl.name)
t.Fatalf("Could not change %#v interface name to %s: %s", tl, newName, err)
}
readLink(t, newName)
deleteLink(t, newName)
}
func TestNetworkLinkAddVlan(t *testing.T) {
if testing.Short() {
return
}
tl := struct {
name string
id uint16
}{
name: "tstVlan",
id: 32,
}
masterLink := testLink{"tstEth", "dummy"}
addLink(t, masterLink.name, masterLink.linkType)
defer deleteLink(t, masterLink.name)
if err := NetworkLinkAddVlan(masterLink.name, tl.name, tl.id); err != nil {
t.Fatalf("Unable to create %#v VLAN interface: %s", tl, err)
}
readLink(t, tl.name)
}
func TestNetworkLinkAddMacVlan(t *testing.T) {
if testing.Short() {
return
}
tl := struct {
name string
mode string
}{
name: "tstVlan",
mode: "private",
}
masterLink := testLink{"tstEth", "dummy"}
addLink(t, masterLink.name, masterLink.linkType)
defer deleteLink(t, masterLink.name)
if err := NetworkLinkAddMacVlan(masterLink.name, tl.name, tl.mode); err != nil {
t.Fatalf("Unable to create %#v MAC VLAN interface: %s", tl, err)
}
readLink(t, tl.name)
}
func TestNetworkLinkAddMacVtap(t *testing.T) {
if testing.Short() {
return
}
tl := struct {
name string
mode string
}{
name: "tstVtap",
mode: "private",
}
masterLink := testLink{"tstEth", "dummy"}
addLink(t, masterLink.name, masterLink.linkType)
defer deleteLink(t, masterLink.name)
if err := NetworkLinkAddMacVtap(masterLink.name, tl.name, tl.mode); err != nil {
t.Fatalf("Unable to create %#v MAC VTAP interface: %s", tl, err)
}
readLink(t, tl.name)
}
func TestAddDelNetworkIp(t *testing.T) {
if testing.Short() {
return
}
ifaceName := "lo"
ip := net.ParseIP("127.0.1.1")
mask := net.IPv4Mask(255, 255, 255, 255)
ipNet := &net.IPNet{IP: ip, Mask: mask}
iface, err := net.InterfaceByName(ifaceName)
if err != nil {
t.Skip("No 'lo' interface; skipping tests")
}
if err := NetworkLinkAddIp(iface, ip, ipNet); err != nil {
t.Fatalf("Could not add IP address %s to interface %#v: %s", ip.String(), iface, err)
}
if !ipAssigned(iface, ip) {
t.Fatalf("Could not locate address '%s' in lo address list.", ip.String())
}
if err := NetworkLinkDelIp(iface, ip, ipNet); err != nil {
t.Fatalf("Could not delete IP address %s from interface %#v: %s", ip.String(), iface, err)
}
if ipAssigned(iface, ip) {
t.Fatalf("Located address '%s' in lo address list after removal.", ip.String())
}
}
func TestAddRouteSourceSelection(t *testing.T) {
tstIp := "127.1.1.1"
tl := testLink{name: "tstEth", linkType: "dummy"}
addLink(t, tl.name, tl.linkType)
defer deleteLink(t, tl.name)
ip := net.ParseIP(tstIp)
mask := net.IPv4Mask(255, 255, 255, 255)
ipNet := &net.IPNet{IP: ip, Mask: mask}
iface, err := net.InterfaceByName(tl.name)
if err != nil {
t.Fatalf("Lost created link %#v", tl)
}
if err := NetworkLinkAddIp(iface, ip, ipNet); err != nil {
t.Fatalf("Could not add IP address %s to interface %#v: %s", ip.String(), iface, err)
}
upLink(t, tl.name)
defer downLink(t, tl.name)
if err := AddRoute("127.0.0.0/8", tstIp, "", tl.name); err != nil {
t.Fatalf("Failed to add route with source address")
}
}
func TestCreateVethPair(t *testing.T) {
if testing.Short() {
return
}
var (
name1 = "veth1"
name2 = "veth2"
)
if err := NetworkCreateVethPair(name1, name2, 0); err != nil {
t.Fatalf("Could not create veth pair %s %s: %s", name1, name2, err)
}
defer NetworkLinkDel(name1)
readLink(t, name1)
readLink(t, name2)
}
//
// netlink package tests which do not use RTNETLINK
//
func TestCreateBridgeWithMac(t *testing.T) {
if testing.Short() {
return
}
name := "testbridge"
if err := CreateBridge(name, true); err != nil {
t.Fatal(err)
}
if _, err := net.InterfaceByName(name); err != nil {
t.Fatal(err)
}
// cleanup and tests
if err := DeleteBridge(name); err != nil {
t.Fatal(err)
}
if _, err := net.InterfaceByName(name); err == nil {
t.Fatalf("expected error getting interface because %s bridge was deleted", name)
}
}
func TestSetMacAddress(t *testing.T) {
if testing.Short() {
return
}
name := "testmac"
mac := randMacAddr()
if err := NetworkLinkAdd(name, "bridge"); err != nil {
t.Fatal(err)
}
defer NetworkLinkDel(name)
if err := SetMacAddress(name, mac); err != nil {
t.Fatal(err)
}
iface, err := net.InterfaceByName(name)
if err != nil {
t.Fatal(err)
}
if iface.HardwareAddr.String() != mac {
t.Fatalf("mac address %q does not match %q", iface.HardwareAddr, mac)
}
}

88
libnetwork/Godeps/_workspace/src/github.com/docker/libcontainer/netlink/netlink_unsupported.go generated vendored Normal file
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@ -0,0 +1,88 @@
// +build !linux
package netlink
import (
"errors"
"net"
)
var (
ErrNotImplemented = errors.New("not implemented")
)
func NetworkGetRoutes() ([]Route, error) {
return nil, ErrNotImplemented
}
func NetworkLinkAdd(name string, linkType string) error {
return ErrNotImplemented
}
func NetworkLinkDel(name string) error {
return ErrNotImplemented
}
func NetworkLinkUp(iface *net.Interface) error {
return ErrNotImplemented
}
func NetworkLinkAddIp(iface *net.Interface, ip net.IP, ipNet *net.IPNet) error {
return ErrNotImplemented
}
func NetworkLinkDelIp(iface *net.Interface, ip net.IP, ipNet *net.IPNet) error {
return ErrNotImplemented
}
func AddRoute(destination, source, gateway, device string) error {
return ErrNotImplemented
}
func AddDefaultGw(ip, device string) error {
return ErrNotImplemented
}
func NetworkSetMTU(iface *net.Interface, mtu int) error {
return ErrNotImplemented
}
func NetworkSetTxQueueLen(iface *net.Interface, txQueueLen int) error {
return ErrNotImplemented
}
func NetworkCreateVethPair(name1, name2 string, txQueueLen int) error {
return ErrNotImplemented
}
func NetworkChangeName(iface *net.Interface, newName string) error {
return ErrNotImplemented
}
func NetworkSetNsFd(iface *net.Interface, fd int) error {
return ErrNotImplemented
}
func NetworkSetNsPid(iface *net.Interface, nspid int) error {
return ErrNotImplemented
}
func NetworkSetMaster(iface, master *net.Interface) error {
return ErrNotImplemented
}
func NetworkLinkDown(iface *net.Interface) error {
return ErrNotImplemented
}
func CreateBridge(name string, setMacAddr bool) error {
return ErrNotImplemented
}
func DeleteBridge(name string) error {
return ErrNotImplemented
}
func AddToBridge(iface, master *net.Interface) error {
return ErrNotImplemented
}

3
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/.travis.yml generated vendored Normal file
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@ -0,0 +1,3 @@
language: go
install:
- go get github.com/vishvananda/netns

192
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/LICENSE generated vendored Normal file
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@ -0,0 +1,192 @@
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.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
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.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor 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, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
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
origin of the Work and reproducing the content of the NOTICE file.
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,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
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
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
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
Copyright 2014 Vishvananda Ishaya.
Copyright 2014 Docker, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

29
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/Makefile generated vendored Normal file
View file

@ -0,0 +1,29 @@
DIRS := \
. \
nl
DEPS = \
github.com/vishvananda/netns
uniq = $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
testdirs = $(call uniq,$(foreach d,$(1),$(dir $(wildcard $(d)/*_test.go))))
goroot = $(addprefix ../../../,$(1))
unroot = $(subst ../../../,,$(1))
fmt = $(addprefix fmt-,$(1))
all: fmt
$(call goroot,$(DEPS)):
go get $(call unroot,$@)
.PHONY: $(call testdirs,$(DIRS))
$(call testdirs,$(DIRS)):
sudo -E go test -v github.com/vishvananda/netlink/$@
$(call fmt,$(call testdirs,$(DIRS))):
! gofmt -l $(subst fmt-,,$@)/*.go | grep ''
.PHONY: fmt
fmt: $(call fmt,$(call testdirs,$(DIRS)))
test: fmt $(call goroot,$(DEPS)) $(call testdirs,$(DIRS))

83
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/README.md generated vendored Normal file
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# netlink - netlink library for go #
[![Build Status](https://travis-ci.org/vishvananda/netlink.png?branch=master)](https://travis-ci.org/vishvananda/netlink) [![GoDoc](https://godoc.org/github.com/vishvananda/netlink?status.svg)](https://godoc.org/github.com/vishvananda/netlink)
The netlink package provides a simple netlink library for go. Netlink
is the interface a user-space program in linux uses to communicate with
the kernel. It can be used to add and remove interfaces, set ip addresses
and routes, and configure ipsec. Netlink communication requires elevated
privileges, so in most cases this code needs to be run as root. Since
low-level netlink messages are inscrutable at best, the library attempts
to provide an api that is loosely modeled on the CLI provied by iproute2.
Actions like `ip link add` will be accomplished via a similarly named
function like AddLink(). This library began its life as a fork of the
netlink functionality in
[docker/libcontainer](https://github.com/docker/libcontainer) but was
heavily rewritten to improve testability, performance, and to add new
functionality like ipsec xfrm handling.
## Local Build and Test ##
You can use go get command:
go get github.com/vishvananda/netlink
Testing dependencies:
go get github.com/vishvananda/netns
Testing (requires root):
sudo -E go test github.com/vishvananda/netlink
## Examples ##
Add a new bridge and add eth1 into it:
```go
package main
import (
"net"
"github.com/vishvananda/netlink"
)
func main() {
mybridge := &netlink.Bridge{netlink.LinkAttrs{Name: "foo"}}
_ := netlink.LinkAdd(mybridge)
eth1, _ := netlink.LinkByName("eth1")
netlink.LinkSetMaster(eth1, mybridge)
}
```
Add a new ip address to loopback:
```go
package main
import (
"net"
"github.com/vishvananda/netlink"
)
func main() {
lo, _ := netlink.LinkByName("lo")
addr, _ := netlink.ParseAddr("169.254.169.254/32")
netlink.AddrAdd(lo, addr)
}
```
## Future Work ##
Many pieces of netlink are not yet fully supported in the high-level
interface. Aspects of virtually all of the high-level objects don't exist.
Many of the underlying primitives are there, so its a matter of putting
the right fields into the high-level objects and making sure that they
are serialized and deserialized correctly in the Add and List methods.
There are also a few pieces of low level netlink functionality that still
need to be implemented. Routing rules are not in place and some of the
more advanced link types. Hopefully there is decent structure and testing
in place to make these fairly straightforward to add.

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package netlink
import (
"fmt"
"net"
"strings"
)
// Addr represents an IP address from netlink. Netlink ip addresses
// include a mask, so it stores the address as a net.IPNet.
type Addr struct {
*net.IPNet
Label string
}
// String returns $ip/$netmask $label
func (addr Addr) String() string {
return fmt.Sprintf("%s %s", addr.IPNet, addr.Label)
}
// ParseAddr parses the string representation of an address in the
// form $ip/$netmask $label. The label portion is optional
func ParseAddr(s string) (*Addr, error) {
label := ""
parts := strings.Split(s, " ")
if len(parts) > 1 {
s = parts[0]
label = parts[1]
}
m, err := ParseIPNet(s)
if err != nil {
return nil, err
}
return &Addr{IPNet: m, Label: label}, nil
}
// Equal returns true if both Addrs have the same net.IPNet value.
func (a Addr) Equal(x Addr) bool {
sizea, _ := a.Mask.Size()
sizeb, _ := x.Mask.Size()
// ignore label for comparison
return a.IP.Equal(x.IP) && sizea == sizeb
}

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package netlink
import (
"fmt"
"net"
"strings"
"syscall"
"github.com/vishvananda/netlink/nl"
)
// AddrAdd will add an IP address to a link device.
// Equivalent to: `ip addr add $addr dev $link`
func AddrAdd(link Link, addr *Addr) error {
req := nl.NewNetlinkRequest(syscall.RTM_NEWADDR, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK)
return addrHandle(link, addr, req)
}
// AddrDel will delete an IP address from a link device.
// Equivalent to: `ip addr del $addr dev $link`
func AddrDel(link Link, addr *Addr) error {
req := nl.NewNetlinkRequest(syscall.RTM_DELADDR, syscall.NLM_F_ACK)
return addrHandle(link, addr, req)
}
func addrHandle(link Link, addr *Addr, req *nl.NetlinkRequest) error {
base := link.Attrs()
if addr.Label != "" && !strings.HasPrefix(addr.Label, base.Name) {
return fmt.Errorf("label must begin with interface name")
}
ensureIndex(base)
family := nl.GetIPFamily(addr.IP)
msg := nl.NewIfAddrmsg(family)
msg.Index = uint32(base.Index)
prefixlen, _ := addr.Mask.Size()
msg.Prefixlen = uint8(prefixlen)
req.AddData(msg)
var addrData []byte
if family == FAMILY_V4 {
addrData = addr.IP.To4()
} else {
addrData = addr.IP.To16()
}
localData := nl.NewRtAttr(syscall.IFA_LOCAL, addrData)
req.AddData(localData)
addressData := nl.NewRtAttr(syscall.IFA_ADDRESS, addrData)
req.AddData(addressData)
if addr.Label != "" {
labelData := nl.NewRtAttr(syscall.IFA_LABEL, nl.ZeroTerminated(addr.Label))
req.AddData(labelData)
}
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// AddrList gets a list of IP addresses in the system.
// Equivalent to: `ip addr show`.
// The list can be filtered by link and ip family.
func AddrList(link Link, family int) ([]Addr, error) {
req := nl.NewNetlinkRequest(syscall.RTM_GETADDR, syscall.NLM_F_DUMP)
msg := nl.NewIfInfomsg(family)
req.AddData(msg)
msgs, err := req.Execute(syscall.NETLINK_ROUTE, syscall.RTM_NEWADDR)
if err != nil {
return nil, err
}
index := 0
if link != nil {
base := link.Attrs()
ensureIndex(base)
index = base.Index
}
res := make([]Addr, 0)
for _, m := range msgs {
msg := nl.DeserializeIfAddrmsg(m)
if link != nil && msg.Index != uint32(index) {
// Ignore messages from other interfaces
continue
}
attrs, err := nl.ParseRouteAttr(m[msg.Len():])
if err != nil {
return nil, err
}
var addr Addr
for _, attr := range attrs {
switch attr.Attr.Type {
case syscall.IFA_ADDRESS:
addr.IPNet = &net.IPNet{
IP: attr.Value,
Mask: net.CIDRMask(int(msg.Prefixlen), 8*len(attr.Value)),
}
case syscall.IFA_LABEL:
addr.Label = string(attr.Value[:len(attr.Value)-1])
}
}
res = append(res, addr)
}
return res, nil
}

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package netlink
import (
"testing"
)
func TestAddrAddDel(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
link, err := LinkByName("lo")
if err != nil {
t.Fatal(err)
}
addr, err := ParseAddr("127.1.1.1/24 local")
if err != nil {
t.Fatal(err)
}
if err = AddrAdd(link, addr); err != nil {
t.Fatal(err)
}
addrs, err := AddrList(link, FAMILY_ALL)
if err != nil {
t.Fatal(err)
}
if len(addrs) != 1 || !addr.Equal(addrs[0]) || addrs[0].Label != addr.Label {
t.Fatal("Address not added properly")
}
if err = AddrDel(link, addr); err != nil {
t.Fatal(err)
}
addrs, err = AddrList(link, FAMILY_ALL)
if err != nil {
t.Fatal(err)
}
if len(addrs) != 0 {
t.Fatal("Address not removed properly")
}
}

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package netlink
import "net"
// Link represents a link device from netlink. Shared link attributes
// like name may be retrieved using the Attrs() method. Unique data
// can be retrieved by casting the object to the proper type.
type Link interface {
Attrs() *LinkAttrs
Type() string
}
// LinkAttrs represents data shared by most link types
type LinkAttrs struct {
Index int
MTU int
TxQLen uint32 // Transmit Queue Length
Name string
HardwareAddr net.HardwareAddr
Flags net.Flags
ParentIndex int // index of the parent link device
MasterIndex int // must be the index of a bridge
}
// Device links cannot be created via netlink. These links
// are links created by udev like 'lo' and 'etho0'
type Device struct {
LinkAttrs
}
func (device *Device) Attrs() *LinkAttrs {
return &device.LinkAttrs
}
func (device *Device) Type() string {
return "device"
}
// Dummy links are dummy ethernet devices
type Dummy struct {
LinkAttrs
}
func (dummy *Dummy) Attrs() *LinkAttrs {
return &dummy.LinkAttrs
}
func (dummy *Dummy) Type() string {
return "dummy"
}
// Bridge links are simple linux bridges
type Bridge struct {
LinkAttrs
}
func (bridge *Bridge) Attrs() *LinkAttrs {
return &bridge.LinkAttrs
}
func (bridge *Bridge) Type() string {
return "bridge"
}
// Vlan links have ParentIndex set in their Attrs()
type Vlan struct {
LinkAttrs
VlanId int
}
func (vlan *Vlan) Attrs() *LinkAttrs {
return &vlan.LinkAttrs
}
func (vlan *Vlan) Type() string {
return "vlan"
}
// Macvlan links have ParentIndex set in their Attrs()
type Macvlan struct {
LinkAttrs
}
func (macvlan *Macvlan) Attrs() *LinkAttrs {
return &macvlan.LinkAttrs
}
func (macvlan *Macvlan) Type() string {
return "macvlan"
}
// Veth devices must specify PeerName on create
type Veth struct {
LinkAttrs
PeerName string // veth on create only
}
func (veth *Veth) Attrs() *LinkAttrs {
return &veth.LinkAttrs
}
func (veth *Veth) Type() string {
return "veth"
}
// Generic links represent types that are not currently understood
// by this netlink library.
type Generic struct {
LinkAttrs
LinkType string
}
func (generic *Generic) Attrs() *LinkAttrs {
return &generic.LinkAttrs
}
func (generic *Generic) Type() string {
return generic.LinkType
}
type Vxlan struct {
LinkAttrs
VxlanId int
VtepDevIndex int
SrcAddr net.IP
Group net.IP
TTL int
TOS int
Learning bool
Proxy bool
RSC bool
L2miss bool
L3miss bool
NoAge bool
Age int
Limit int
Port int
PortLow int
PortHigh int
}
func (vxlan *Vxlan) Attrs() *LinkAttrs {
return &vxlan.LinkAttrs
}
func (vxlan *Vxlan) Type() string {
return "vxlan"
}
type IPVlanMode uint16
const (
IPVLAN_MODE_L2 IPVlanMode = iota
IPVLAN_MODE_L3
IPVLAN_MODE_MAX
)
type IPVlan struct {
LinkAttrs
Mode IPVlanMode
}
func (ipvlan *IPVlan) Attrs() *LinkAttrs {
return &ipvlan.LinkAttrs
}
func (ipvlan *IPVlan) Type() string {
return "ipvlan"
}
// iproute2 supported devices;
// vlan | veth | vcan | dummy | ifb | macvlan | macvtap |
// bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan |
// gre | gretap | ip6gre | ip6gretap | vti | nlmon |
// bond_slave | ipvlan

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package netlink
import (
"bytes"
"encoding/binary"
"fmt"
"net"
"syscall"
"github.com/vishvananda/netlink/nl"
)
var native = nl.NativeEndian()
var lookupByDump = false
func ensureIndex(link *LinkAttrs) {
if link != nil && link.Index == 0 {
newlink, _ := LinkByName(link.Name)
if newlink != nil {
link.Index = newlink.Attrs().Index
}
}
}
// LinkSetUp enables the link device.
// Equivalent to: `ip link set $link up`
func LinkSetUp(link Link) error {
base := link.Attrs()
ensureIndex(base)
req := nl.NewNetlinkRequest(syscall.RTM_NEWLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Change = syscall.IFF_UP
msg.Flags = syscall.IFF_UP
msg.Index = int32(base.Index)
req.AddData(msg)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// LinkSetUp disables link device.
// Equivalent to: `ip link set $link down`
func LinkSetDown(link Link) error {
base := link.Attrs()
ensureIndex(base)
req := nl.NewNetlinkRequest(syscall.RTM_NEWLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Change = syscall.IFF_UP
msg.Flags = 0 & ^syscall.IFF_UP
msg.Index = int32(base.Index)
req.AddData(msg)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// LinkSetMTU sets the mtu of the link device.
// Equivalent to: `ip link set $link mtu $mtu`
func LinkSetMTU(link Link, mtu int) error {
base := link.Attrs()
ensureIndex(base)
req := nl.NewNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Type = syscall.RTM_SETLINK
msg.Flags = syscall.NLM_F_REQUEST
msg.Index = int32(base.Index)
msg.Change = nl.DEFAULT_CHANGE
req.AddData(msg)
b := make([]byte, 4)
native.PutUint32(b, uint32(mtu))
data := nl.NewRtAttr(syscall.IFLA_MTU, b)
req.AddData(data)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// LinkSetName sets the name of the link device.
// Equivalent to: `ip link set $link name $name`
func LinkSetName(link Link, name string) error {
base := link.Attrs()
ensureIndex(base)
req := nl.NewNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Type = syscall.RTM_SETLINK
msg.Flags = syscall.NLM_F_REQUEST
msg.Index = int32(base.Index)
msg.Change = nl.DEFAULT_CHANGE
req.AddData(msg)
data := nl.NewRtAttr(syscall.IFLA_IFNAME, []byte(name))
req.AddData(data)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// LinkSetHardwareAddr sets the hardware address of the link device.
// Equivalent to: `ip link set $link address $hwaddr`
func LinkSetHardwareAddr(link Link, hwaddr net.HardwareAddr) error {
base := link.Attrs()
ensureIndex(base)
req := nl.NewNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Type = syscall.RTM_SETLINK
msg.Flags = syscall.NLM_F_REQUEST
msg.Index = int32(base.Index)
msg.Change = nl.DEFAULT_CHANGE
req.AddData(msg)
data := nl.NewRtAttr(syscall.IFLA_ADDRESS, []byte(hwaddr))
req.AddData(data)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// LinkSetMaster sets the master of the link device.
// Equivalent to: `ip link set $link master $master`
func LinkSetMaster(link Link, master *Bridge) error {
index := 0
if master != nil {
masterBase := master.Attrs()
ensureIndex(masterBase)
index = masterBase.Index
}
return LinkSetMasterByIndex(link, index)
}
// LinkSetMasterByIndex sets the master of the link device.
// Equivalent to: `ip link set $link master $master`
func LinkSetMasterByIndex(link Link, masterIndex int) error {
base := link.Attrs()
ensureIndex(base)
req := nl.NewNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Type = syscall.RTM_SETLINK
msg.Flags = syscall.NLM_F_REQUEST
msg.Index = int32(base.Index)
msg.Change = nl.DEFAULT_CHANGE
req.AddData(msg)
b := make([]byte, 4)
native.PutUint32(b, uint32(masterIndex))
data := nl.NewRtAttr(syscall.IFLA_MASTER, b)
req.AddData(data)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// LinkSetNsPid puts the device into a new network namespace. The
// pid must be a pid of a running process.
// Equivalent to: `ip link set $link netns $pid`
func LinkSetNsPid(link Link, nspid int) error {
base := link.Attrs()
ensureIndex(base)
req := nl.NewNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Type = syscall.RTM_SETLINK
msg.Flags = syscall.NLM_F_REQUEST
msg.Index = int32(base.Index)
msg.Change = nl.DEFAULT_CHANGE
req.AddData(msg)
b := make([]byte, 4)
native.PutUint32(b, uint32(nspid))
data := nl.NewRtAttr(syscall.IFLA_NET_NS_PID, b)
req.AddData(data)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// LinkSetNsPid puts the device into a new network namespace. The
// fd must be an open file descriptor to a network namespace.
// Similar to: `ip link set $link netns $ns`
func LinkSetNsFd(link Link, fd int) error {
base := link.Attrs()
ensureIndex(base)
req := nl.NewNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Type = syscall.RTM_SETLINK
msg.Flags = syscall.NLM_F_REQUEST
msg.Index = int32(base.Index)
msg.Change = nl.DEFAULT_CHANGE
req.AddData(msg)
b := make([]byte, 4)
native.PutUint32(b, uint32(fd))
data := nl.NewRtAttr(nl.IFLA_NET_NS_FD, b)
req.AddData(data)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
func boolAttr(val bool) []byte {
var v uint8
if val {
v = 1
}
return nl.Uint8Attr(v)
}
type vxlanPortRange struct {
Lo, Hi uint16
}
func addVxlanAttrs(vxlan *Vxlan, linkInfo *nl.RtAttr) {
data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil)
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_ID, nl.Uint32Attr(uint32(vxlan.VxlanId)))
if vxlan.VtepDevIndex != 0 {
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_LINK, nl.Uint32Attr(uint32(vxlan.VtepDevIndex)))
}
if vxlan.SrcAddr != nil {
ip := vxlan.SrcAddr.To4()
if ip != nil {
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_LOCAL, []byte(ip))
} else {
ip = vxlan.SrcAddr.To16()
if ip != nil {
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_LOCAL6, []byte(ip))
}
}
}
if vxlan.Group != nil {
group := vxlan.Group.To4()
if group != nil {
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_GROUP, []byte(group))
} else {
group = vxlan.Group.To16()
if group != nil {
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_GROUP6, []byte(group))
}
}
}
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_TTL, nl.Uint8Attr(uint8(vxlan.TTL)))
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_TOS, nl.Uint8Attr(uint8(vxlan.TOS)))
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_LEARNING, boolAttr(vxlan.Learning))
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_PROXY, boolAttr(vxlan.Proxy))
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_RSC, boolAttr(vxlan.RSC))
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_L2MISS, boolAttr(vxlan.L2miss))
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_L3MISS, boolAttr(vxlan.L3miss))
if vxlan.NoAge {
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_AGEING, nl.Uint32Attr(0))
} else if vxlan.Age > 0 {
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_AGEING, nl.Uint32Attr(uint32(vxlan.Age)))
}
if vxlan.Limit > 0 {
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_LIMIT, nl.Uint32Attr(uint32(vxlan.Limit)))
}
if vxlan.Port > 0 {
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_PORT, nl.Uint16Attr(uint16(vxlan.Port)))
}
if vxlan.PortLow > 0 || vxlan.PortHigh > 0 {
pr := vxlanPortRange{uint16(vxlan.PortLow), uint16(vxlan.PortHigh)}
buf := new(bytes.Buffer)
binary.Write(buf, binary.BigEndian, &pr)
nl.NewRtAttrChild(data, nl.IFLA_VXLAN_PORT_RANGE, buf.Bytes())
}
}
// LinkAdd adds a new link device. The type and features of the device
// are taken fromt the parameters in the link object.
// Equivalent to: `ip link add $link`
func LinkAdd(link Link) error {
// TODO: set mtu and hardware address
// TODO: support extra data for macvlan
base := link.Attrs()
if base.Name == "" {
return fmt.Errorf("LinkAttrs.Name cannot be empty!")
}
req := nl.NewNetlinkRequest(syscall.RTM_NEWLINK, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
req.AddData(msg)
if base.ParentIndex != 0 {
b := make([]byte, 4)
native.PutUint32(b, uint32(base.ParentIndex))
data := nl.NewRtAttr(syscall.IFLA_LINK, b)
req.AddData(data)
} else if link.Type() == "ipvlan" {
return fmt.Errorf("Can't create ipvlan link without ParentIndex")
}
nameData := nl.NewRtAttr(syscall.IFLA_IFNAME, nl.ZeroTerminated(base.Name))
req.AddData(nameData)
if base.MTU > 0 {
mtu := nl.NewRtAttr(syscall.IFLA_MTU, nl.Uint32Attr(uint32(base.MTU)))
req.AddData(mtu)
}
linkInfo := nl.NewRtAttr(syscall.IFLA_LINKINFO, nil)
nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_KIND, nl.NonZeroTerminated(link.Type()))
nl.NewRtAttrChild(linkInfo, syscall.IFLA_TXQLEN, nl.Uint32Attr(base.TxQLen))
if vlan, ok := link.(*Vlan); ok {
b := make([]byte, 2)
native.PutUint16(b, uint16(vlan.VlanId))
data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil)
nl.NewRtAttrChild(data, nl.IFLA_VLAN_ID, b)
} else if veth, ok := link.(*Veth); ok {
data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil)
peer := nl.NewRtAttrChild(data, nl.VETH_INFO_PEER, nil)
nl.NewIfInfomsgChild(peer, syscall.AF_UNSPEC)
nl.NewRtAttrChild(peer, syscall.IFLA_IFNAME, nl.ZeroTerminated(veth.PeerName))
nl.NewRtAttrChild(peer, syscall.IFLA_TXQLEN, nl.Uint32Attr(base.TxQLen))
if base.MTU > 0 {
nl.NewRtAttrChild(peer, syscall.IFLA_MTU, nl.Uint32Attr(uint32(base.MTU)))
}
} else if vxlan, ok := link.(*Vxlan); ok {
addVxlanAttrs(vxlan, linkInfo)
} else if ipv, ok := link.(*IPVlan); ok {
data := nl.NewRtAttrChild(linkInfo, nl.IFLA_INFO_DATA, nil)
nl.NewRtAttrChild(data, nl.IFLA_IPVLAN_MODE, nl.Uint16Attr(uint16(ipv.Mode)))
}
req.AddData(linkInfo)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
if err != nil {
return err
}
ensureIndex(base)
// can't set master during create, so set it afterwards
if base.MasterIndex != 0 {
// TODO: verify MasterIndex is actually a bridge?
return LinkSetMasterByIndex(link, base.MasterIndex)
}
return nil
}
// LinkDel deletes link device. Either Index or Name must be set in
// the link object for it to be deleted. The other values are ignored.
// Equivalent to: `ip link del $link`
func LinkDel(link Link) error {
base := link.Attrs()
ensureIndex(base)
req := nl.NewNetlinkRequest(syscall.RTM_DELLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Index = int32(base.Index)
req.AddData(msg)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
func linkByNameDump(name string) (Link, error) {
links, err := LinkList()
if err != nil {
return nil, err
}
for _, link := range links {
if link.Attrs().Name == name {
return link, nil
}
}
return nil, fmt.Errorf("Link %s not found", name)
}
// LinkByName finds a link by name and returns a pointer to the object.
func LinkByName(name string) (Link, error) {
if lookupByDump {
return linkByNameDump(name)
}
req := nl.NewNetlinkRequest(syscall.RTM_GETLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
req.AddData(msg)
nameData := nl.NewRtAttr(syscall.IFLA_IFNAME, nl.ZeroTerminated(name))
req.AddData(nameData)
link, err := execGetLink(req)
if err == syscall.EINVAL {
// older kernels don't support looking up via IFLA_IFNAME
// so fall back to dumping all links
lookupByDump = true
return linkByNameDump(name)
}
return link, err
}
// LinkByIndex finds a link by index and returns a pointer to the object.
func LinkByIndex(index int) (Link, error) {
req := nl.NewNetlinkRequest(syscall.RTM_GETLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
msg.Index = int32(index)
req.AddData(msg)
return execGetLink(req)
}
func execGetLink(req *nl.NetlinkRequest) (Link, error) {
msgs, err := req.Execute(syscall.NETLINK_ROUTE, 0)
if err != nil {
if errno, ok := err.(syscall.Errno); ok {
if errno == syscall.ENODEV {
return nil, fmt.Errorf("Link not found")
}
}
return nil, err
}
switch {
case len(msgs) == 0:
return nil, fmt.Errorf("Link not found")
case len(msgs) == 1:
return linkDeserialize(msgs[0])
default:
return nil, fmt.Errorf("More than one link found")
}
}
// linkDeserialize deserializes a raw message received from netlink into
// a link object.
func linkDeserialize(m []byte) (Link, error) {
msg := nl.DeserializeIfInfomsg(m)
attrs, err := nl.ParseRouteAttr(m[msg.Len():])
if err != nil {
return nil, err
}
base := LinkAttrs{Index: int(msg.Index), Flags: linkFlags(msg.Flags)}
var link Link
linkType := ""
for _, attr := range attrs {
switch attr.Attr.Type {
case syscall.IFLA_LINKINFO:
infos, err := nl.ParseRouteAttr(attr.Value)
if err != nil {
return nil, err
}
for _, info := range infos {
switch info.Attr.Type {
case nl.IFLA_INFO_KIND:
linkType = string(info.Value[:len(info.Value)-1])
switch linkType {
case "dummy":
link = &Dummy{}
case "bridge":
link = &Bridge{}
case "vlan":
link = &Vlan{}
case "veth":
link = &Veth{}
case "vxlan":
link = &Vxlan{}
case "ipvlan":
link = &IPVlan{}
default:
link = &Generic{LinkType: linkType}
}
case nl.IFLA_INFO_DATA:
data, err := nl.ParseRouteAttr(info.Value)
if err != nil {
return nil, err
}
switch linkType {
case "vlan":
parseVlanData(link, data)
case "vxlan":
parseVxlanData(link, data)
case "ipvlan":
parseIPVlanData(link, data)
}
}
}
case syscall.IFLA_ADDRESS:
var nonzero bool
for _, b := range attr.Value {
if b != 0 {
nonzero = true
}
}
if nonzero {
base.HardwareAddr = attr.Value[:]
}
case syscall.IFLA_IFNAME:
base.Name = string(attr.Value[:len(attr.Value)-1])
case syscall.IFLA_MTU:
base.MTU = int(native.Uint32(attr.Value[0:4]))
case syscall.IFLA_LINK:
base.ParentIndex = int(native.Uint32(attr.Value[0:4]))
case syscall.IFLA_MASTER:
base.MasterIndex = int(native.Uint32(attr.Value[0:4]))
case syscall.IFLA_TXQLEN:
base.TxQLen = native.Uint32(attr.Value[0:4])
}
}
// Links that don't have IFLA_INFO_KIND are hardware devices
if link == nil {
link = &Device{}
}
*link.Attrs() = base
return link, nil
}
// LinkList gets a list of link devices.
// Equivalent to: `ip link show`
func LinkList() ([]Link, error) {
// NOTE(vish): This duplicates functionality in net/iface_linux.go, but we need
// to get the message ourselves to parse link type.
req := nl.NewNetlinkRequest(syscall.RTM_GETLINK, syscall.NLM_F_DUMP)
msg := nl.NewIfInfomsg(syscall.AF_UNSPEC)
req.AddData(msg)
msgs, err := req.Execute(syscall.NETLINK_ROUTE, syscall.RTM_NEWLINK)
if err != nil {
return nil, err
}
res := make([]Link, 0)
for _, m := range msgs {
link, err := linkDeserialize(m)
if err != nil {
return nil, err
}
res = append(res, link)
}
return res, nil
}
func LinkSetHairpin(link Link, mode bool) error {
return setProtinfoAttr(link, mode, nl.IFLA_BRPORT_MODE)
}
func LinkSetGuard(link Link, mode bool) error {
return setProtinfoAttr(link, mode, nl.IFLA_BRPORT_GUARD)
}
func LinkSetFastLeave(link Link, mode bool) error {
return setProtinfoAttr(link, mode, nl.IFLA_BRPORT_FAST_LEAVE)
}
func LinkSetLearning(link Link, mode bool) error {
return setProtinfoAttr(link, mode, nl.IFLA_BRPORT_LEARNING)
}
func LinkSetRootBlock(link Link, mode bool) error {
return setProtinfoAttr(link, mode, nl.IFLA_BRPORT_PROTECT)
}
func LinkSetFlood(link Link, mode bool) error {
return setProtinfoAttr(link, mode, nl.IFLA_BRPORT_UNICAST_FLOOD)
}
func setProtinfoAttr(link Link, mode bool, attr int) error {
base := link.Attrs()
ensureIndex(base)
req := nl.NewNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK)
msg := nl.NewIfInfomsg(syscall.AF_BRIDGE)
msg.Type = syscall.RTM_SETLINK
msg.Flags = syscall.NLM_F_REQUEST
msg.Index = int32(base.Index)
msg.Change = nl.DEFAULT_CHANGE
req.AddData(msg)
br := nl.NewRtAttr(syscall.IFLA_PROTINFO|syscall.NLA_F_NESTED, nil)
nl.NewRtAttrChild(br, attr, boolToByte(mode))
req.AddData(br)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
if err != nil {
return err
}
return nil
}
func parseVlanData(link Link, data []syscall.NetlinkRouteAttr) {
vlan := link.(*Vlan)
for _, datum := range data {
switch datum.Attr.Type {
case nl.IFLA_VLAN_ID:
vlan.VlanId = int(native.Uint16(datum.Value[0:2]))
}
}
}
func parseVxlanData(link Link, data []syscall.NetlinkRouteAttr) {
vxlan := link.(*Vxlan)
for _, datum := range data {
switch datum.Attr.Type {
case nl.IFLA_VXLAN_ID:
vxlan.VxlanId = int(native.Uint32(datum.Value[0:4]))
case nl.IFLA_VXLAN_LINK:
vxlan.VtepDevIndex = int(native.Uint32(datum.Value[0:4]))
case nl.IFLA_VXLAN_LOCAL:
vxlan.SrcAddr = net.IP(datum.Value[0:4])
case nl.IFLA_VXLAN_LOCAL6:
vxlan.SrcAddr = net.IP(datum.Value[0:16])
case nl.IFLA_VXLAN_GROUP:
vxlan.Group = net.IP(datum.Value[0:4])
case nl.IFLA_VXLAN_GROUP6:
vxlan.Group = net.IP(datum.Value[0:16])
case nl.IFLA_VXLAN_TTL:
vxlan.TTL = int(datum.Value[0])
case nl.IFLA_VXLAN_TOS:
vxlan.TOS = int(datum.Value[0])
case nl.IFLA_VXLAN_LEARNING:
vxlan.Learning = int8(datum.Value[0]) != 0
case nl.IFLA_VXLAN_PROXY:
vxlan.Proxy = int8(datum.Value[0]) != 0
case nl.IFLA_VXLAN_RSC:
vxlan.RSC = int8(datum.Value[0]) != 0
case nl.IFLA_VXLAN_L2MISS:
vxlan.L2miss = int8(datum.Value[0]) != 0
case nl.IFLA_VXLAN_L3MISS:
vxlan.L3miss = int8(datum.Value[0]) != 0
case nl.IFLA_VXLAN_AGEING:
vxlan.Age = int(native.Uint32(datum.Value[0:4]))
vxlan.NoAge = vxlan.Age == 0
case nl.IFLA_VXLAN_LIMIT:
vxlan.Limit = int(native.Uint32(datum.Value[0:4]))
case nl.IFLA_VXLAN_PORT:
vxlan.Port = int(native.Uint16(datum.Value[0:2]))
case nl.IFLA_VXLAN_PORT_RANGE:
buf := bytes.NewBuffer(datum.Value[0:4])
var pr vxlanPortRange
if binary.Read(buf, binary.BigEndian, &pr) != nil {
vxlan.PortLow = int(pr.Lo)
vxlan.PortHigh = int(pr.Hi)
}
}
}
}
func parseIPVlanData(link Link, data []syscall.NetlinkRouteAttr) {
ipv := link.(*IPVlan)
for _, datum := range data {
if datum.Attr.Type == nl.IFLA_IPVLAN_MODE {
ipv.Mode = IPVlanMode(native.Uint32(datum.Value[0:4]))
return
}
}
}
// copied from pkg/net_linux.go
func linkFlags(rawFlags uint32) net.Flags {
var f net.Flags
if rawFlags&syscall.IFF_UP != 0 {
f |= net.FlagUp
}
if rawFlags&syscall.IFF_BROADCAST != 0 {
f |= net.FlagBroadcast
}
if rawFlags&syscall.IFF_LOOPBACK != 0 {
f |= net.FlagLoopback
}
if rawFlags&syscall.IFF_POINTOPOINT != 0 {
f |= net.FlagPointToPoint
}
if rawFlags&syscall.IFF_MULTICAST != 0 {
f |= net.FlagMulticast
}
return f
}

531
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/link_test.go generated vendored Normal file
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@ -0,0 +1,531 @@
package netlink
import (
"bytes"
"net"
"testing"
"github.com/vishvananda/netns"
)
const testTxQLen uint32 = 100
func testLinkAddDel(t *testing.T, link Link) {
links, err := LinkList()
if err != nil {
t.Fatal(err)
}
num := len(links)
if err := LinkAdd(link); err != nil {
t.Fatal(err)
}
base := link.Attrs()
result, err := LinkByName(base.Name)
if err != nil {
t.Fatal(err)
}
rBase := result.Attrs()
if vlan, ok := link.(*Vlan); ok {
other, ok := result.(*Vlan)
if !ok {
t.Fatal("Result of create is not a vlan")
}
if vlan.VlanId != other.VlanId {
t.Fatal("Link.VlanId id doesn't match")
}
}
if rBase.ParentIndex == 0 && base.ParentIndex != 0 {
t.Fatal("Created link doesn't have a Parent but it should")
} else if rBase.ParentIndex != 0 && base.ParentIndex == 0 {
t.Fatal("Created link has a Parent but it shouldn't")
} else if rBase.ParentIndex != 0 && base.ParentIndex != 0 {
if rBase.ParentIndex != base.ParentIndex {
t.Fatal("Link.ParentIndex doesn't match")
}
}
if veth, ok := link.(*Veth); ok {
if veth.TxQLen != testTxQLen {
t.Fatalf("TxQLen is %d, should be %d", veth.TxQLen, testTxQLen)
}
if rBase.MTU != base.MTU {
t.Fatalf("MTU is %d, should be %d", rBase.MTU, base.MTU)
}
if veth.PeerName != "" {
var peer *Veth
other, err := LinkByName(veth.PeerName)
if err != nil {
t.Fatalf("Peer %s not created", veth.PeerName)
}
if peer, ok = other.(*Veth); !ok {
t.Fatalf("Peer %s is incorrect type", veth.PeerName)
}
if peer.TxQLen != testTxQLen {
t.Fatalf("TxQLen of peer is %d, should be %d", peer.TxQLen, testTxQLen)
}
}
}
if vxlan, ok := link.(*Vxlan); ok {
other, ok := result.(*Vxlan)
if !ok {
t.Fatal("Result of create is not a vxlan")
}
compareVxlan(t, vxlan, other)
}
if ipv, ok := link.(*IPVlan); ok {
other, ok := result.(*IPVlan)
if !ok {
t.Fatal("Result of create is not a ipvlan")
}
if ipv.Mode != other.Mode {
t.Fatalf("Got unexpected mode: %d, expected: %d", other.Mode, ipv.Mode)
}
}
if err = LinkDel(link); err != nil {
t.Fatal(err)
}
links, err = LinkList()
if err != nil {
t.Fatal(err)
}
if len(links) != num {
t.Fatal("Link not removed properly")
}
}
func compareVxlan(t *testing.T, expected, actual *Vxlan) {
if actual.VxlanId != expected.VxlanId {
t.Fatal("Vxlan.VxlanId doesn't match")
}
if expected.SrcAddr != nil && !actual.SrcAddr.Equal(expected.SrcAddr) {
t.Fatal("Vxlan.SrcAddr doesn't match")
}
if expected.Group != nil && !actual.Group.Equal(expected.Group) {
t.Fatal("Vxlan.Group doesn't match")
}
if expected.TTL != -1 && actual.TTL != expected.TTL {
t.Fatal("Vxlan.TTL doesn't match")
}
if expected.TOS != -1 && actual.TOS != expected.TOS {
t.Fatal("Vxlan.TOS doesn't match")
}
if actual.Learning != expected.Learning {
t.Fatal("Vxlan.Learning doesn't match")
}
if actual.Proxy != expected.Proxy {
t.Fatal("Vxlan.Proxy doesn't match")
}
if actual.RSC != expected.RSC {
t.Fatal("Vxlan.RSC doesn't match")
}
if actual.L2miss != expected.L2miss {
t.Fatal("Vxlan.L2miss doesn't match")
}
if actual.L3miss != expected.L3miss {
t.Fatal("Vxlan.L3miss doesn't match")
}
if expected.NoAge {
if !actual.NoAge {
t.Fatal("Vxlan.NoAge doesn't match")
}
} else if expected.Age > 0 && actual.Age != expected.Age {
t.Fatal("Vxlan.Age doesn't match")
}
if expected.Limit > 0 && actual.Limit != expected.Limit {
t.Fatal("Vxlan.Limit doesn't match")
}
if expected.Port > 0 && actual.Port != expected.Port {
t.Fatal("Vxlan.Port doesn't match")
}
if expected.PortLow > 0 || expected.PortHigh > 0 {
if actual.PortLow != expected.PortLow {
t.Fatal("Vxlan.PortLow doesn't match")
}
if actual.PortHigh != expected.PortHigh {
t.Fatal("Vxlan.PortHigh doesn't match")
}
}
}
func TestLinkAddDelDummy(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Dummy{LinkAttrs{Name: "foo"}})
}
func TestLinkAddDelBridge(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Bridge{LinkAttrs{Name: "foo", MTU: 1400}})
}
func TestLinkAddDelVlan(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
testLinkAddDel(t, &Vlan{LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index}, 900})
if err := LinkDel(parent); err != nil {
t.Fatal(err)
}
}
func TestLinkAddDelMacvlan(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
testLinkAddDel(t, &Macvlan{LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index}})
if err := LinkDel(parent); err != nil {
t.Fatal(err)
}
}
func TestLinkAddDelVeth(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Veth{LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1400}, "bar"})
}
func TestLinkAddDelBridgeMaster(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
master := &Bridge{LinkAttrs{Name: "foo"}}
if err := LinkAdd(master); err != nil {
t.Fatal(err)
}
testLinkAddDel(t, &Dummy{LinkAttrs{Name: "bar", MasterIndex: master.Attrs().Index}})
if err := LinkDel(master); err != nil {
t.Fatal(err)
}
}
func TestLinkSetUnsetResetMaster(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
master := &Bridge{LinkAttrs{Name: "foo"}}
if err := LinkAdd(master); err != nil {
t.Fatal(err)
}
newmaster := &Bridge{LinkAttrs{Name: "bar"}}
if err := LinkAdd(newmaster); err != nil {
t.Fatal(err)
}
slave := &Dummy{LinkAttrs{Name: "baz"}}
if err := LinkAdd(slave); err != nil {
t.Fatal(err)
}
if err := LinkSetMaster(slave, master); err != nil {
t.Fatal(err)
}
link, err := LinkByName("baz")
if err != nil {
t.Fatal(err)
}
if link.Attrs().MasterIndex != master.Attrs().Index {
t.Fatal("Master not set properly")
}
if err := LinkSetMaster(slave, newmaster); err != nil {
t.Fatal(err)
}
link, err = LinkByName("baz")
if err != nil {
t.Fatal(err)
}
if link.Attrs().MasterIndex != newmaster.Attrs().Index {
t.Fatal("Master not reset properly")
}
if err := LinkSetMaster(slave, nil); err != nil {
t.Fatal(err)
}
link, err = LinkByName("baz")
if err != nil {
t.Fatal(err)
}
if link.Attrs().MasterIndex != 0 {
t.Fatal("Master not unset properly")
}
if err := LinkDel(slave); err != nil {
t.Fatal(err)
}
if err := LinkDel(newmaster); err != nil {
t.Fatal(err)
}
if err := LinkDel(master); err != nil {
t.Fatal(err)
}
}
func TestLinkSetNs(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
basens, err := netns.Get()
if err != nil {
t.Fatal("Failed to get basens")
}
defer basens.Close()
newns, err := netns.New()
if err != nil {
t.Fatal("Failed to create newns")
}
defer newns.Close()
link := &Veth{LinkAttrs{Name: "foo"}, "bar"}
if err := LinkAdd(link); err != nil {
t.Fatal(err)
}
peer, err := LinkByName("bar")
if err != nil {
t.Fatal(err)
}
LinkSetNsFd(peer, int(basens))
if err != nil {
t.Fatal("Failed to set newns for link")
}
_, err = LinkByName("bar")
if err == nil {
t.Fatal("Link bar is still in newns")
}
err = netns.Set(basens)
if err != nil {
t.Fatal("Failed to set basens")
}
peer, err = LinkByName("bar")
if err != nil {
t.Fatal("Link is not in basens")
}
if err := LinkDel(peer); err != nil {
t.Fatal(err)
}
err = netns.Set(newns)
if err != nil {
t.Fatal("Failed to set newns")
}
_, err = LinkByName("foo")
if err == nil {
t.Fatal("Other half of veth pair not deleted")
}
}
func TestLinkAddDelVxlan(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{
LinkAttrs{Name: "foo"},
}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
vxlan := Vxlan{
LinkAttrs: LinkAttrs{
Name: "bar",
},
VxlanId: 10,
VtepDevIndex: parent.Index,
Learning: true,
L2miss: true,
L3miss: true,
}
testLinkAddDel(t, &vxlan)
if err := LinkDel(parent); err != nil {
t.Fatal(err)
}
}
func TestLinkAddDelIPVlanL2(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
ipv := IPVlan{
LinkAttrs: LinkAttrs{
Name: "bar",
ParentIndex: parent.Index,
},
Mode: IPVLAN_MODE_L2,
}
testLinkAddDel(t, &ipv)
}
func TestLinkAddDelIPVlanL3(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
ipv := IPVlan{
LinkAttrs: LinkAttrs{
Name: "bar",
ParentIndex: parent.Index,
},
Mode: IPVLAN_MODE_L3,
}
testLinkAddDel(t, &ipv)
}
func TestLinkAddDelIPVlanNoParent(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
ipv := IPVlan{
LinkAttrs: LinkAttrs{
Name: "bar",
},
Mode: IPVLAN_MODE_L3,
}
err := LinkAdd(&ipv)
if err == nil {
t.Fatal("Add should fail if ipvlan creating without ParentIndex")
}
if err.Error() != "Can't create ipvlan link without ParentIndex" {
t.Fatalf("Error should be about missing ParentIndex, got %q", err)
}
}
func TestLinkByIndex(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
dummy := &Dummy{LinkAttrs{Name: "dummy"}}
if err := LinkAdd(dummy); err != nil {
t.Fatal(err)
}
found, err := LinkByIndex(dummy.Index)
if err != nil {
t.Fatal(err)
}
if found.Attrs().Index != dummy.Attrs().Index {
t.Fatalf("Indices don't match: %v != %v", found.Attrs().Index, dummy.Attrs().Index)
}
LinkDel(dummy)
// test not found
_, err = LinkByIndex(dummy.Attrs().Index)
if err == nil {
t.Fatalf("LinkByIndex(%v) found deleted link", err)
}
}
func TestLinkSet(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
err = LinkSetName(link, "bar")
if err != nil {
t.Fatalf("Could not change interface name: %v", err)
}
link, err = LinkByName("bar")
if err != nil {
t.Fatalf("Interface name not changed: %v", err)
}
err = LinkSetMTU(link, 1400)
if err != nil {
t.Fatalf("Could not set MTU: %v", err)
}
link, err = LinkByName("bar")
if err != nil {
t.Fatal(err)
}
if link.Attrs().MTU != 1400 {
t.Fatal("MTU not changed!")
}
addr, err := net.ParseMAC("00:12:34:56:78:AB")
if err != nil {
t.Fatal(err)
}
err = LinkSetHardwareAddr(link, addr)
if err != nil {
t.Fatal(err)
}
link, err = LinkByName("bar")
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(link.Attrs().HardwareAddr, addr) {
t.Fatalf("hardware address not changed!")
}
}

22
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/neigh.go generated vendored Normal file
View file

@ -0,0 +1,22 @@
package netlink
import (
"fmt"
"net"
)
// Neigh represents a link layer neighbor from netlink.
type Neigh struct {
LinkIndex int
Family int
State int
Type int
Flags int
IP net.IP
HardwareAddr net.HardwareAddr
}
// String returns $ip/$hwaddr $label
func (neigh *Neigh) String() string {
return fmt.Sprintf("%s %s", neigh.IP, neigh.HardwareAddr)
}

189
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/neigh_linux.go generated vendored Normal file
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package netlink
import (
"net"
"syscall"
"unsafe"
"github.com/vishvananda/netlink/nl"
)
const (
NDA_UNSPEC = iota
NDA_DST
NDA_LLADDR
NDA_CACHEINFO
NDA_PROBES
NDA_VLAN
NDA_PORT
NDA_VNI
NDA_IFINDEX
NDA_MAX = NDA_IFINDEX
)
// Neighbor Cache Entry States.
const (
NUD_NONE = 0x00
NUD_INCOMPLETE = 0x01
NUD_REACHABLE = 0x02
NUD_STALE = 0x04
NUD_DELAY = 0x08
NUD_PROBE = 0x10
NUD_FAILED = 0x20
NUD_NOARP = 0x40
NUD_PERMANENT = 0x80
)
// Neighbor Flags
const (
NTF_USE = 0x01
NTF_SELF = 0x02
NTF_MASTER = 0x04
NTF_PROXY = 0x08
NTF_ROUTER = 0x80
)
type Ndmsg struct {
Family uint8
Index uint32
State uint16
Flags uint8
Type uint8
}
func deserializeNdmsg(b []byte) *Ndmsg {
var dummy Ndmsg
return (*Ndmsg)(unsafe.Pointer(&b[0:unsafe.Sizeof(dummy)][0]))
}
func (msg *Ndmsg) Serialize() []byte {
return (*(*[unsafe.Sizeof(*msg)]byte)(unsafe.Pointer(msg)))[:]
}
func (msg *Ndmsg) Len() int {
return int(unsafe.Sizeof(*msg))
}
// NeighAdd will add an IP to MAC mapping to the ARP table
// Equivalent to: `ip neigh add ....`
func NeighAdd(neigh *Neigh) error {
return neighAdd(neigh, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL)
}
// NeighAdd will add or replace an IP to MAC mapping to the ARP table
// Equivalent to: `ip neigh replace....`
func NeighSet(neigh *Neigh) error {
return neighAdd(neigh, syscall.NLM_F_CREATE)
}
// NeighAppend will append an entry to FDB
// Equivalent to: `bridge fdb append...`
func NeighAppend(neigh *Neigh) error {
return neighAdd(neigh, syscall.NLM_F_CREATE|syscall.NLM_F_APPEND)
}
func neighAdd(neigh *Neigh, mode int) error {
req := nl.NewNetlinkRequest(syscall.RTM_NEWNEIGH, mode|syscall.NLM_F_ACK)
return neighHandle(neigh, req)
}
// NeighDel will delete an IP address from a link device.
// Equivalent to: `ip addr del $addr dev $link`
func NeighDel(neigh *Neigh) error {
req := nl.NewNetlinkRequest(syscall.RTM_DELNEIGH, syscall.NLM_F_ACK)
return neighHandle(neigh, req)
}
func neighHandle(neigh *Neigh, req *nl.NetlinkRequest) error {
var family int
if neigh.Family > 0 {
family = neigh.Family
} else {
family = nl.GetIPFamily(neigh.IP)
}
msg := Ndmsg{
Family: uint8(family),
Index: uint32(neigh.LinkIndex),
State: uint16(neigh.State),
Type: uint8(neigh.Type),
Flags: uint8(neigh.Flags),
}
req.AddData(&msg)
ipData := neigh.IP.To4()
if ipData == nil {
ipData = neigh.IP.To16()
}
dstData := nl.NewRtAttr(NDA_DST, ipData)
req.AddData(dstData)
hwData := nl.NewRtAttr(NDA_LLADDR, []byte(neigh.HardwareAddr))
req.AddData(hwData)
_, err := req.Execute(syscall.NETLINK_ROUTE, 0)
return err
}
// NeighList gets a list of IP-MAC mappings in the system (ARP table).
// Equivalent to: `ip neighbor show`.
// The list can be filtered by link and ip family.
func NeighList(linkIndex, family int) ([]Neigh, error) {
req := nl.NewNetlinkRequest(syscall.RTM_GETNEIGH, syscall.NLM_F_DUMP)
msg := Ndmsg{
Family: uint8(family),
}
req.AddData(&msg)
msgs, err := req.Execute(syscall.NETLINK_ROUTE, syscall.RTM_NEWNEIGH)
if err != nil {
return nil, err
}
res := make([]Neigh, 0)
for _, m := range msgs {
ndm := deserializeNdmsg(m)
if linkIndex != 0 && int(ndm.Index) != linkIndex {
// Ignore messages from other interfaces
continue
}
neigh, err := NeighDeserialize(m)
if err != nil {
continue
}
res = append(res, *neigh)
}
return res, nil
}
func NeighDeserialize(m []byte) (*Neigh, error) {
msg := deserializeNdmsg(m)
neigh := Neigh{
LinkIndex: int(msg.Index),
Family: int(msg.Family),
State: int(msg.State),
Type: int(msg.Type),
Flags: int(msg.Flags),
}
attrs, err := nl.ParseRouteAttr(m[msg.Len():])
if err != nil {
return nil, err
}
for _, attr := range attrs {
switch attr.Attr.Type {
case NDA_DST:
neigh.IP = net.IP(attr.Value)
case NDA_LLADDR:
neigh.HardwareAddr = net.HardwareAddr(attr.Value)
}
}
return &neigh, nil
}

104
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/neigh_test.go generated vendored Normal file
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package netlink
import (
"net"
"testing"
)
type arpEntry struct {
ip net.IP
mac net.HardwareAddr
}
func parseMAC(s string) net.HardwareAddr {
m, err := net.ParseMAC(s)
if err != nil {
panic(err)
}
return m
}
func dumpContains(dump []Neigh, e arpEntry) bool {
for _, n := range dump {
if n.IP.Equal(e.ip) && (n.State&NUD_INCOMPLETE) == 0 {
return true
}
}
return false
}
func TestNeighAddDel(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
dummy := Dummy{LinkAttrs{Name: "neigh0"}}
if err := LinkAdd(&dummy); err != nil {
t.Fatal(err)
}
ensureIndex(dummy.Attrs())
arpTable := []arpEntry{
{net.ParseIP("10.99.0.1"), parseMAC("aa:bb:cc:dd:00:01")},
{net.ParseIP("10.99.0.2"), parseMAC("aa:bb:cc:dd:00:02")},
{net.ParseIP("10.99.0.3"), parseMAC("aa:bb:cc:dd:00:03")},
{net.ParseIP("10.99.0.4"), parseMAC("aa:bb:cc:dd:00:04")},
{net.ParseIP("10.99.0.5"), parseMAC("aa:bb:cc:dd:00:05")},
}
// Add the arpTable
for _, entry := range arpTable {
err := NeighAdd(&Neigh{
LinkIndex: dummy.Index,
State: NUD_REACHABLE,
IP: entry.ip,
HardwareAddr: entry.mac,
})
if err != nil {
t.Errorf("Failed to NeighAdd: %v", err)
}
}
// Dump and see that all added entries are there
dump, err := NeighList(dummy.Index, 0)
if err != nil {
t.Errorf("Failed to NeighList: %v", err)
}
for _, entry := range arpTable {
if !dumpContains(dump, entry) {
t.Errorf("Dump does not contain: %v", entry)
}
}
// Delete the arpTable
for _, entry := range arpTable {
err := NeighDel(&Neigh{
LinkIndex: dummy.Index,
IP: entry.ip,
HardwareAddr: entry.mac,
})
if err != nil {
t.Errorf("Failed to NeighDel: %v", err)
}
}
// TODO: seems not working because of cache
//// Dump and see that none of deleted entries are there
//dump, err = NeighList(dummy.Index, 0)
//if err != nil {
//t.Errorf("Failed to NeighList: %v", err)
//}
//for _, entry := range arpTable {
//if dumpContains(dump, entry) {
//t.Errorf("Dump contains: %v", entry)
//}
//}
if err := LinkDel(&dummy); err != nil {
t.Fatal(err)
}
}

39
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/netlink.go generated vendored Normal file
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// Package netlink provides a simple library for netlink. Netlink is
// the interface a user-space program in linux uses to communicate with
// the kernel. It can be used to add and remove interfaces, set up ip
// addresses and routes, and confiugre ipsec. Netlink communication
// requires elevated privileges, so in most cases this code needs to
// be run as root. The low level primitives for netlink are contained
// in the nl subpackage. This package attempts to provide a high-level
// interface that is loosly modeled on the iproute2 cli.
package netlink
import (
"net"
"github.com/vishvananda/netlink/nl"
)
const (
// Family type definitions
FAMILY_ALL = nl.FAMILY_ALL
FAMILY_V4 = nl.FAMILY_V4
FAMILY_V6 = nl.FAMILY_V6
)
// ParseIPNet parses a string in ip/net format and returns a net.IPNet.
// This is valuable because addresses in netlink are often IPNets and
// ParseCIDR returns an IPNet with the IP part set to the base IP of the
// range.
func ParseIPNet(s string) (*net.IPNet, error) {
ip, ipNet, err := net.ParseCIDR(s)
if err != nil {
return nil, err
}
return &net.IPNet{IP: ip, Mask: ipNet.Mask}, nil
}
// NewIPNet generates an IPNet from an ip address using a netmask of 32.
func NewIPNet(ip net.IP) *net.IPNet {
return &net.IPNet{IP: ip, Mask: net.CIDRMask(32, 32)}
}

34
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/netlink_test.go generated vendored Normal file
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package netlink
import (
"log"
"os"
"runtime"
"testing"
"github.com/vishvananda/netns"
)
type tearDownNetlinkTest func()
func setUpNetlinkTest(t *testing.T) tearDownNetlinkTest {
if os.Getuid() != 0 {
msg := "Skipped test because it requires root privileges."
log.Printf(msg)
t.Skip(msg)
}
// new temporary namespace so we don't pollute the host
// lock thread since the namespace is thread local
runtime.LockOSThread()
var err error
ns, err := netns.New()
if err != nil {
t.Fatal("Failed to create newns", ns)
}
return func() {
ns.Close()
runtime.UnlockOSThread()
}
}

143
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/netlink_unspecified.go generated vendored Normal file
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// +build !linux
package netlink
import (
"errors"
)
var (
ErrNotImplemented = errors.New("not implemented")
)
func LinkSetUp(link *Link) error {
return ErrNotImplemented
}
func LinkSetDown(link *Link) error {
return ErrNotImplemented
}
func LinkSetMTU(link *Link, mtu int) error {
return ErrNotImplemented
}
func LinkSetMaster(link *Link, master *Link) error {
return ErrNotImplemented
}
func LinkSetNsPid(link *Link, nspid int) error {
return ErrNotImplemented
}
func LinkSetNsFd(link *Link, fd int) error {
return ErrNotImplemented
}
func LinkAdd(link *Link) error {
return ErrNotImplemented
}
func LinkDel(link *Link) error {
return ErrNotImplemented
}
func SetHairpin(link Link, mode bool) error {
return ErrNotImplemented
}
func SetGuard(link Link, mode bool) error {
return ErrNotImplemented
}
func SetFastLeave(link Link, mode bool) error {
return ErrNotImplemented
}
func SetLearning(link Link, mode bool) error {
return ErrNotImplemented
}
func SetRootBlock(link Link, mode bool) error {
return ErrNotImplemented
}
func SetFlood(link Link, mode bool) error {
return ErrNotImplemented
}
func LinkList() ([]Link, error) {
return nil, ErrNotImplemented
}
func AddrAdd(link *Link, addr *Addr) error {
return ErrNotImplemented
}
func AddrDel(link *Link, addr *Addr) error {
return ErrNotImplemented
}
func AddrList(link *Link, family int) ([]Addr, error) {
return nil, ErrNotImplemented
}
func RouteAdd(route *Route) error {
return ErrNotImplemented
}
func RouteDel(route *Route) error {
return ErrNotImplemented
}
func RouteList(link *Link, family int) ([]Route, error) {
return nil, ErrNotImplemented
}
func XfrmPolicyAdd(policy *XfrmPolicy) error {
return ErrNotImplemented
}
func XfrmPolicyDel(policy *XfrmPolicy) error {
return ErrNotImplemented
}
func XfrmPolicyList(family int) ([]XfrmPolicy, error) {
return nil, ErrNotImplemented
}
func XfrmStateAdd(policy *XfrmState) error {
return ErrNotImplemented
}
func XfrmStateDel(policy *XfrmState) error {
return ErrNotImplemented
}
func XfrmStateList(family int) ([]XfrmState, error) {
return nil, ErrNotImplemented
}
func NeighAdd(neigh *Neigh) error {
return ErrNotImplemented
}
func NeighSet(neigh *Neigh) error {
return ErrNotImplemented
}
func NeighAppend(neigh *Neigh) error {
return ErrNotImplemented
}
func NeighDel(neigh *Neigh) error {
return ErrNotImplemented
}
func NeighList(linkIndex, family int) ([]Neigh, error) {
return nil, ErrNotImplemented
}
func NeighDeserialize(m []byte) (*Ndmsg, *Neigh, error) {
return nil, nil, ErrNotImplemented
}

47
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/addr_linux.go generated vendored Normal file
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package nl
import (
"syscall"
"unsafe"
)
type IfAddrmsg struct {
syscall.IfAddrmsg
}
func NewIfAddrmsg(family int) *IfAddrmsg {
return &IfAddrmsg{
IfAddrmsg: syscall.IfAddrmsg{
Family: uint8(family),
},
}
}
// struct ifaddrmsg {
// __u8 ifa_family;
// __u8 ifa_prefixlen; /* The prefix length */
// __u8 ifa_flags; /* Flags */
// __u8 ifa_scope; /* Address scope */
// __u32 ifa_index; /* Link index */
// };
// type IfAddrmsg struct {
// Family uint8
// Prefixlen uint8
// Flags uint8
// Scope uint8
// Index uint32
// }
// SizeofIfAddrmsg = 0x8
func DeserializeIfAddrmsg(b []byte) *IfAddrmsg {
return (*IfAddrmsg)(unsafe.Pointer(&b[0:syscall.SizeofIfAddrmsg][0]))
}
func (msg *IfAddrmsg) Serialize() []byte {
return (*(*[syscall.SizeofIfAddrmsg]byte)(unsafe.Pointer(msg)))[:]
}
func (msg *IfAddrmsg) Len() int {
return syscall.SizeofIfAddrmsg
}

39
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/addr_linux_test.go generated vendored Normal file
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package nl
import (
"bytes"
"crypto/rand"
"encoding/binary"
"syscall"
"testing"
)
func (msg *IfAddrmsg) write(b []byte) {
native := NativeEndian()
b[0] = msg.Family
b[1] = msg.Prefixlen
b[2] = msg.Flags
b[3] = msg.Scope
native.PutUint32(b[4:8], msg.Index)
}
func (msg *IfAddrmsg) serializeSafe() []byte {
len := syscall.SizeofIfAddrmsg
b := make([]byte, len)
msg.write(b)
return b
}
func deserializeIfAddrmsgSafe(b []byte) *IfAddrmsg {
var msg = IfAddrmsg{}
binary.Read(bytes.NewReader(b[0:syscall.SizeofIfAddrmsg]), NativeEndian(), &msg)
return &msg
}
func TestIfAddrmsgDeserializeSerialize(t *testing.T) {
var orig = make([]byte, syscall.SizeofIfAddrmsg)
rand.Read(orig)
safemsg := deserializeIfAddrmsgSafe(orig)
msg := DeserializeIfAddrmsg(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}

81
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/link_linux.go generated vendored Normal file
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package nl
const (
DEFAULT_CHANGE = 0xFFFFFFFF
)
const (
IFLA_INFO_UNSPEC = iota
IFLA_INFO_KIND
IFLA_INFO_DATA
IFLA_INFO_XSTATS
IFLA_INFO_MAX = IFLA_INFO_XSTATS
)
const (
IFLA_VLAN_UNSPEC = iota
IFLA_VLAN_ID
IFLA_VLAN_FLAGS
IFLA_VLAN_EGRESS_QOS
IFLA_VLAN_INGRESS_QOS
IFLA_VLAN_PROTOCOL
IFLA_VLAN_MAX = IFLA_VLAN_PROTOCOL
)
const (
VETH_INFO_UNSPEC = iota
VETH_INFO_PEER
VETH_INFO_MAX = VETH_INFO_PEER
)
const (
IFLA_VXLAN_UNSPEC = iota
IFLA_VXLAN_ID
IFLA_VXLAN_GROUP
IFLA_VXLAN_LINK
IFLA_VXLAN_LOCAL
IFLA_VXLAN_TTL
IFLA_VXLAN_TOS
IFLA_VXLAN_LEARNING
IFLA_VXLAN_AGEING
IFLA_VXLAN_LIMIT
IFLA_VXLAN_PORT_RANGE
IFLA_VXLAN_PROXY
IFLA_VXLAN_RSC
IFLA_VXLAN_L2MISS
IFLA_VXLAN_L3MISS
IFLA_VXLAN_PORT
IFLA_VXLAN_GROUP6
IFLA_VXLAN_LOCAL6
IFLA_VXLAN_MAX = IFLA_VXLAN_LOCAL6
)
const (
BRIDGE_MODE_UNSPEC = iota
BRIDGE_MODE_HAIRPIN
)
const (
IFLA_BRPORT_UNSPEC = iota
IFLA_BRPORT_STATE
IFLA_BRPORT_PRIORITY
IFLA_BRPORT_COST
IFLA_BRPORT_MODE
IFLA_BRPORT_GUARD
IFLA_BRPORT_PROTECT
IFLA_BRPORT_FAST_LEAVE
IFLA_BRPORT_LEARNING
IFLA_BRPORT_UNICAST_FLOOD
IFLA_BRPORT_MAX = IFLA_BRPORT_UNICAST_FLOOD
)
const (
IFLA_IPVLAN_UNSPEC = iota
IFLA_IPVLAN_MODE
IFLA_IPVLAN_MAX = IFLA_IPVLAN_MODE
)
const (
// not defined in syscall
IFLA_NET_NS_FD = 28
)

417
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/nl_linux.go generated vendored Normal file
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// Package nl has low level primitives for making Netlink calls.
package nl
import (
"bytes"
"encoding/binary"
"fmt"
"net"
"sync/atomic"
"syscall"
"unsafe"
)
const (
// Family type definitions
FAMILY_ALL = syscall.AF_UNSPEC
FAMILY_V4 = syscall.AF_INET
FAMILY_V6 = syscall.AF_INET6
)
var nextSeqNr uint32
// GetIPFamily returns the family type of a net.IP.
func GetIPFamily(ip net.IP) int {
if len(ip) <= net.IPv4len {
return FAMILY_V4
}
if ip.To4() != nil {
return FAMILY_V4
}
return FAMILY_V6
}
var nativeEndian binary.ByteOrder
// Get native endianness for the system
func NativeEndian() binary.ByteOrder {
if nativeEndian == nil {
var x uint32 = 0x01020304
if *(*byte)(unsafe.Pointer(&x)) == 0x01 {
nativeEndian = binary.BigEndian
}
nativeEndian = binary.LittleEndian
}
return nativeEndian
}
// Byte swap a 16 bit value if we aren't big endian
func Swap16(i uint16) uint16 {
if NativeEndian() == binary.BigEndian {
return i
}
return (i&0xff00)>>8 | (i&0xff)<<8
}
// Byte swap a 32 bit value if aren't big endian
func Swap32(i uint32) uint32 {
if NativeEndian() == binary.BigEndian {
return i
}
return (i&0xff000000)>>24 | (i&0xff0000)>>8 | (i&0xff00)<<8 | (i&0xff)<<24
}
type NetlinkRequestData interface {
Len() int
Serialize() []byte
}
// IfInfomsg is related to links, but it is used for list requests as well
type IfInfomsg struct {
syscall.IfInfomsg
}
// Create an IfInfomsg with family specified
func NewIfInfomsg(family int) *IfInfomsg {
return &IfInfomsg{
IfInfomsg: syscall.IfInfomsg{
Family: uint8(family),
},
}
}
func DeserializeIfInfomsg(b []byte) *IfInfomsg {
return (*IfInfomsg)(unsafe.Pointer(&b[0:syscall.SizeofIfInfomsg][0]))
}
func (msg *IfInfomsg) Serialize() []byte {
return (*(*[syscall.SizeofIfInfomsg]byte)(unsafe.Pointer(msg)))[:]
}
func (msg *IfInfomsg) Len() int {
return syscall.SizeofIfInfomsg
}
func rtaAlignOf(attrlen int) int {
return (attrlen + syscall.RTA_ALIGNTO - 1) & ^(syscall.RTA_ALIGNTO - 1)
}
func NewIfInfomsgChild(parent *RtAttr, family int) *IfInfomsg {
msg := NewIfInfomsg(family)
parent.children = append(parent.children, msg)
return msg
}
// Extend RtAttr to handle data and children
type RtAttr struct {
syscall.RtAttr
Data []byte
children []NetlinkRequestData
}
// Create a new Extended RtAttr object
func NewRtAttr(attrType int, data []byte) *RtAttr {
return &RtAttr{
RtAttr: syscall.RtAttr{
Type: uint16(attrType),
},
children: []NetlinkRequestData{},
Data: data,
}
}
// Create a new RtAttr obj anc add it as a child of an existing object
func NewRtAttrChild(parent *RtAttr, attrType int, data []byte) *RtAttr {
attr := NewRtAttr(attrType, data)
parent.children = append(parent.children, attr)
return attr
}
func (a *RtAttr) Len() int {
if len(a.children) == 0 {
return (syscall.SizeofRtAttr + len(a.Data))
}
l := 0
for _, child := range a.children {
l += rtaAlignOf(child.Len())
}
l += syscall.SizeofRtAttr
return rtaAlignOf(l + len(a.Data))
}
// Serialize the RtAttr into a byte array
// This can't ust unsafe.cast because it must iterate through children.
func (a *RtAttr) Serialize() []byte {
native := NativeEndian()
length := a.Len()
buf := make([]byte, rtaAlignOf(length))
if a.Data != nil {
copy(buf[4:], a.Data)
} else {
next := 4
for _, child := range a.children {
childBuf := child.Serialize()
copy(buf[next:], childBuf)
next += rtaAlignOf(len(childBuf))
}
}
if l := uint16(length); l != 0 {
native.PutUint16(buf[0:2], l)
}
native.PutUint16(buf[2:4], a.Type)
return buf
}
type NetlinkRequest struct {
syscall.NlMsghdr
Data []NetlinkRequestData
}
// Serialize the Netlink Request into a byte array
func (msg *NetlinkRequest) Serialize() []byte {
length := syscall.SizeofNlMsghdr
dataBytes := make([][]byte, len(msg.Data))
for i, data := range msg.Data {
dataBytes[i] = data.Serialize()
length = length + len(dataBytes[i])
}
msg.Len = uint32(length)
b := make([]byte, length)
hdr := (*(*[syscall.SizeofNlMsghdr]byte)(unsafe.Pointer(msg)))[:]
next := syscall.SizeofNlMsghdr
copy(b[0:next], hdr)
for _, data := range dataBytes {
for _, dataByte := range data {
b[next] = dataByte
next = next + 1
}
}
return b
}
func (msg *NetlinkRequest) AddData(data NetlinkRequestData) {
if data != nil {
msg.Data = append(msg.Data, data)
}
}
// Execute the request against a the given sockType.
// Returns a list of netlink messages in seriaized format, optionally filtered
// by resType.
func (req *NetlinkRequest) Execute(sockType int, resType uint16) ([][]byte, error) {
s, err := getNetlinkSocket(sockType)
if err != nil {
return nil, err
}
defer s.Close()
if err := s.Send(req); err != nil {
return nil, err
}
pid, err := s.GetPid()
if err != nil {
return nil, err
}
res := make([][]byte, 0)
done:
for {
msgs, err := s.Recieve()
if err != nil {
return nil, err
}
for _, m := range msgs {
if m.Header.Seq != req.Seq {
return nil, fmt.Errorf("Wrong Seq nr %d, expected 1", m.Header.Seq)
}
if m.Header.Pid != pid {
return nil, fmt.Errorf("Wrong pid %d, expected %d", m.Header.Pid, pid)
}
if m.Header.Type == syscall.NLMSG_DONE {
break done
}
if m.Header.Type == syscall.NLMSG_ERROR {
native := NativeEndian()
error := int32(native.Uint32(m.Data[0:4]))
if error == 0 {
break done
}
return nil, syscall.Errno(-error)
}
if resType != 0 && m.Header.Type != resType {
continue
}
res = append(res, m.Data)
if m.Header.Flags&syscall.NLM_F_MULTI == 0 {
break done
}
}
}
return res, nil
}
// Create a new netlink request from proto and flags
// Note the Len value will be inaccurate once data is added until
// the message is serialized
func NewNetlinkRequest(proto, flags int) *NetlinkRequest {
return &NetlinkRequest{
NlMsghdr: syscall.NlMsghdr{
Len: uint32(syscall.SizeofNlMsghdr),
Type: uint16(proto),
Flags: syscall.NLM_F_REQUEST | uint16(flags),
Seq: atomic.AddUint32(&nextSeqNr, 1),
},
}
}
type NetlinkSocket struct {
fd int
lsa syscall.SockaddrNetlink
}
func getNetlinkSocket(protocol int) (*NetlinkSocket, error) {
fd, err := syscall.Socket(syscall.AF_NETLINK, syscall.SOCK_RAW, protocol)
if err != nil {
return nil, err
}
s := &NetlinkSocket{
fd: fd,
}
s.lsa.Family = syscall.AF_NETLINK
if err := syscall.Bind(fd, &s.lsa); err != nil {
syscall.Close(fd)
return nil, err
}
return s, nil
}
// Create a netlink socket with a given protocol (e.g. NETLINK_ROUTE)
// and subscribe it to multicast groups passed in variable argument list.
// Returns the netlink socket on whic hReceive() method can be called
// to retrieve the messages from the kernel.
func Subscribe(protocol int, groups ...uint) (*NetlinkSocket, error) {
fd, err := syscall.Socket(syscall.AF_NETLINK, syscall.SOCK_RAW, protocol)
if err != nil {
return nil, err
}
s := &NetlinkSocket{
fd: fd,
}
s.lsa.Family = syscall.AF_NETLINK
for _, g := range groups {
s.lsa.Groups |= (1 << (g - 1))
}
if err := syscall.Bind(fd, &s.lsa); err != nil {
syscall.Close(fd)
return nil, err
}
return s, nil
}
func (s *NetlinkSocket) Close() {
syscall.Close(s.fd)
}
func (s *NetlinkSocket) Send(request *NetlinkRequest) error {
if err := syscall.Sendto(s.fd, request.Serialize(), 0, &s.lsa); err != nil {
return err
}
return nil
}
func (s *NetlinkSocket) Recieve() ([]syscall.NetlinkMessage, error) {
rb := make([]byte, syscall.Getpagesize())
nr, _, err := syscall.Recvfrom(s.fd, rb, 0)
if err != nil {
return nil, err
}
if nr < syscall.NLMSG_HDRLEN {
return nil, fmt.Errorf("Got short response from netlink")
}
rb = rb[:nr]
return syscall.ParseNetlinkMessage(rb)
}
func (s *NetlinkSocket) GetPid() (uint32, error) {
lsa, err := syscall.Getsockname(s.fd)
if err != nil {
return 0, err
}
switch v := lsa.(type) {
case *syscall.SockaddrNetlink:
return v.Pid, nil
}
return 0, fmt.Errorf("Wrong socket type")
}
func ZeroTerminated(s string) []byte {
bytes := make([]byte, len(s)+1)
for i := 0; i < len(s); i++ {
bytes[i] = s[i]
}
bytes[len(s)] = 0
return bytes
}
func NonZeroTerminated(s string) []byte {
bytes := make([]byte, len(s))
for i := 0; i < len(s); i++ {
bytes[i] = s[i]
}
return bytes
}
func BytesToString(b []byte) string {
n := bytes.Index(b, []byte{0})
return string(b[:n])
}
func Uint8Attr(v uint8) []byte {
return []byte{byte(v)}
}
func Uint16Attr(v uint16) []byte {
native := NativeEndian()
bytes := make([]byte, 2)
native.PutUint16(bytes, v)
return bytes
}
func Uint32Attr(v uint32) []byte {
native := NativeEndian()
bytes := make([]byte, 4)
native.PutUint32(bytes, v)
return bytes
}
func ParseRouteAttr(b []byte) ([]syscall.NetlinkRouteAttr, error) {
var attrs []syscall.NetlinkRouteAttr
for len(b) >= syscall.SizeofRtAttr {
a, vbuf, alen, err := netlinkRouteAttrAndValue(b)
if err != nil {
return nil, err
}
ra := syscall.NetlinkRouteAttr{Attr: *a, Value: vbuf[:int(a.Len)-syscall.SizeofRtAttr]}
attrs = append(attrs, ra)
b = b[alen:]
}
return attrs, nil
}
func netlinkRouteAttrAndValue(b []byte) (*syscall.RtAttr, []byte, int, error) {
a := (*syscall.RtAttr)(unsafe.Pointer(&b[0]))
if int(a.Len) < syscall.SizeofRtAttr || int(a.Len) > len(b) {
return nil, nil, 0, syscall.EINVAL
}
return a, b[syscall.SizeofRtAttr:], rtaAlignOf(int(a.Len)), nil
}

60
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/nl_linux_test.go generated vendored Normal file
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package nl
import (
"bytes"
"crypto/rand"
"encoding/binary"
"reflect"
"syscall"
"testing"
)
type testSerializer interface {
serializeSafe() []byte
Serialize() []byte
}
func testDeserializeSerialize(t *testing.T, orig []byte, safemsg testSerializer, msg testSerializer) {
if !reflect.DeepEqual(safemsg, msg) {
t.Fatal("Deserialization failed.\n", safemsg, "\n", msg)
}
safe := msg.serializeSafe()
if !bytes.Equal(safe, orig) {
t.Fatal("Safe serialization failed.\n", safe, "\n", orig)
}
b := msg.Serialize()
if !bytes.Equal(b, safe) {
t.Fatal("Serialization failed.\n", b, "\n", safe)
}
}
func (msg *IfInfomsg) write(b []byte) {
native := NativeEndian()
b[0] = msg.Family
b[1] = msg.X__ifi_pad
native.PutUint16(b[2:4], msg.Type)
native.PutUint32(b[4:8], uint32(msg.Index))
native.PutUint32(b[8:12], msg.Flags)
native.PutUint32(b[12:16], msg.Change)
}
func (msg *IfInfomsg) serializeSafe() []byte {
length := syscall.SizeofIfInfomsg
b := make([]byte, length)
msg.write(b)
return b
}
func deserializeIfInfomsgSafe(b []byte) *IfInfomsg {
var msg = IfInfomsg{}
binary.Read(bytes.NewReader(b[0:syscall.SizeofIfInfomsg]), NativeEndian(), &msg)
return &msg
}
func TestIfInfomsgDeserializeSerialize(t *testing.T) {
var orig = make([]byte, syscall.SizeofIfInfomsg)
rand.Read(orig)
safemsg := deserializeIfInfomsgSafe(orig)
msg := DeserializeIfInfomsg(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}

33
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/route_linux.go generated vendored Normal file
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package nl
import (
"syscall"
"unsafe"
)
type RtMsg struct {
syscall.RtMsg
}
func NewRtMsg() *RtMsg {
return &RtMsg{
RtMsg: syscall.RtMsg{
Table: syscall.RT_TABLE_MAIN,
Scope: syscall.RT_SCOPE_UNIVERSE,
Protocol: syscall.RTPROT_BOOT,
Type: syscall.RTN_UNICAST,
},
}
}
func (msg *RtMsg) Len() int {
return syscall.SizeofRtMsg
}
func DeserializeRtMsg(b []byte) *RtMsg {
return (*RtMsg)(unsafe.Pointer(&b[0:syscall.SizeofRtMsg][0]))
}
func (msg *RtMsg) Serialize() []byte {
return (*(*[syscall.SizeofRtMsg]byte)(unsafe.Pointer(msg)))[:]
}

43
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/route_linux_test.go generated vendored Normal file
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package nl
import (
"bytes"
"crypto/rand"
"encoding/binary"
"syscall"
"testing"
)
func (msg *RtMsg) write(b []byte) {
native := NativeEndian()
b[0] = msg.Family
b[1] = msg.Dst_len
b[2] = msg.Src_len
b[3] = msg.Tos
b[4] = msg.Table
b[5] = msg.Protocol
b[6] = msg.Scope
b[7] = msg.Type
native.PutUint32(b[8:12], msg.Flags)
}
func (msg *RtMsg) serializeSafe() []byte {
len := syscall.SizeofRtMsg
b := make([]byte, len)
msg.write(b)
return b
}
func deserializeRtMsgSafe(b []byte) *RtMsg {
var msg = RtMsg{}
binary.Read(bytes.NewReader(b[0:syscall.SizeofRtMsg]), NativeEndian(), &msg)
return &msg
}
func TestRtMsgDeserializeSerialize(t *testing.T) {
var orig = make([]byte, syscall.SizeofRtMsg)
rand.Read(orig)
safemsg := deserializeRtMsgSafe(orig)
msg := DeserializeRtMsg(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}

259
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/xfrm_linux.go generated vendored Normal file
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package nl
import (
"bytes"
"net"
"unsafe"
)
// Infinity for packet and byte counts
const (
XFRM_INF = ^uint64(0)
)
// Message Types
const (
XFRM_MSG_BASE = 0x10
XFRM_MSG_NEWSA = 0x10
XFRM_MSG_DELSA = 0x11
XFRM_MSG_GETSA = 0x12
XFRM_MSG_NEWPOLICY = 0x13
XFRM_MSG_DELPOLICY = 0x14
XFRM_MSG_GETPOLICY = 0x15
XFRM_MSG_ALLOCSPI = 0x16
XFRM_MSG_ACQUIRE = 0x17
XFRM_MSG_EXPIRE = 0x18
XFRM_MSG_UPDPOLICY = 0x19
XFRM_MSG_UPDSA = 0x1a
XFRM_MSG_POLEXPIRE = 0x1b
XFRM_MSG_FLUSHSA = 0x1c
XFRM_MSG_FLUSHPOLICY = 0x1d
XFRM_MSG_NEWAE = 0x1e
XFRM_MSG_GETAE = 0x1f
XFRM_MSG_REPORT = 0x20
XFRM_MSG_MIGRATE = 0x21
XFRM_MSG_NEWSADINFO = 0x22
XFRM_MSG_GETSADINFO = 0x23
XFRM_MSG_NEWSPDINFO = 0x24
XFRM_MSG_GETSPDINFO = 0x25
XFRM_MSG_MAPPING = 0x26
XFRM_MSG_MAX = 0x26
XFRM_NR_MSGTYPES = 0x17
)
// Attribute types
const (
/* Netlink message attributes. */
XFRMA_UNSPEC = 0x00
XFRMA_ALG_AUTH = 0x01 /* struct xfrm_algo */
XFRMA_ALG_CRYPT = 0x02 /* struct xfrm_algo */
XFRMA_ALG_COMP = 0x03 /* struct xfrm_algo */
XFRMA_ENCAP = 0x04 /* struct xfrm_algo + struct xfrm_encap_tmpl */
XFRMA_TMPL = 0x05 /* 1 or more struct xfrm_user_tmpl */
XFRMA_SA = 0x06 /* struct xfrm_usersa_info */
XFRMA_POLICY = 0x07 /* struct xfrm_userpolicy_info */
XFRMA_SEC_CTX = 0x08 /* struct xfrm_sec_ctx */
XFRMA_LTIME_VAL = 0x09
XFRMA_REPLAY_VAL = 0x0a
XFRMA_REPLAY_THRESH = 0x0b
XFRMA_ETIMER_THRESH = 0x0c
XFRMA_SRCADDR = 0x0d /* xfrm_address_t */
XFRMA_COADDR = 0x0e /* xfrm_address_t */
XFRMA_LASTUSED = 0x0f /* unsigned long */
XFRMA_POLICY_TYPE = 0x10 /* struct xfrm_userpolicy_type */
XFRMA_MIGRATE = 0x11
XFRMA_ALG_AEAD = 0x12 /* struct xfrm_algo_aead */
XFRMA_KMADDRESS = 0x13 /* struct xfrm_user_kmaddress */
XFRMA_ALG_AUTH_TRUNC = 0x14 /* struct xfrm_algo_auth */
XFRMA_MARK = 0x15 /* struct xfrm_mark */
XFRMA_TFCPAD = 0x16 /* __u32 */
XFRMA_REPLAY_ESN_VAL = 0x17 /* struct xfrm_replay_esn */
XFRMA_SA_EXTRA_FLAGS = 0x18 /* __u32 */
XFRMA_MAX = 0x18
)
const (
SizeofXfrmAddress = 0x10
SizeofXfrmSelector = 0x38
SizeofXfrmLifetimeCfg = 0x40
SizeofXfrmLifetimeCur = 0x20
SizeofXfrmId = 0x18
)
// typedef union {
// __be32 a4;
// __be32 a6[4];
// } xfrm_address_t;
type XfrmAddress [SizeofXfrmAddress]byte
func (x *XfrmAddress) ToIP() net.IP {
var empty = [12]byte{}
ip := make(net.IP, net.IPv6len)
if bytes.Equal(x[4:16], empty[:]) {
ip[10] = 0xff
ip[11] = 0xff
copy(ip[12:16], x[0:4])
} else {
copy(ip[:], x[:])
}
return ip
}
func (x *XfrmAddress) ToIPNet(prefixlen uint8) *net.IPNet {
ip := x.ToIP()
if GetIPFamily(ip) == FAMILY_V4 {
return &net.IPNet{IP: ip, Mask: net.CIDRMask(int(prefixlen), 32)}
} else {
return &net.IPNet{IP: ip, Mask: net.CIDRMask(int(prefixlen), 128)}
}
}
func (x *XfrmAddress) FromIP(ip net.IP) {
var empty = [16]byte{}
if len(ip) < net.IPv4len {
copy(x[4:16], empty[:])
} else if GetIPFamily(ip) == FAMILY_V4 {
copy(x[0:4], ip.To4()[0:4])
copy(x[4:16], empty[:12])
} else {
copy(x[0:16], ip.To16()[0:16])
}
}
func DeserializeXfrmAddress(b []byte) *XfrmAddress {
return (*XfrmAddress)(unsafe.Pointer(&b[0:SizeofXfrmAddress][0]))
}
func (msg *XfrmAddress) Serialize() []byte {
return (*(*[SizeofXfrmAddress]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_selector {
// xfrm_address_t daddr;
// xfrm_address_t saddr;
// __be16 dport;
// __be16 dport_mask;
// __be16 sport;
// __be16 sport_mask;
// __u16 family;
// __u8 prefixlen_d;
// __u8 prefixlen_s;
// __u8 proto;
// int ifindex;
// __kernel_uid32_t user;
// };
type XfrmSelector struct {
Daddr XfrmAddress
Saddr XfrmAddress
Dport uint16 // big endian
DportMask uint16 // big endian
Sport uint16 // big endian
SportMask uint16 // big endian
Family uint16
PrefixlenD uint8
PrefixlenS uint8
Proto uint8
Pad [3]byte
Ifindex int32
User uint32
}
func (msg *XfrmSelector) Len() int {
return SizeofXfrmSelector
}
func DeserializeXfrmSelector(b []byte) *XfrmSelector {
return (*XfrmSelector)(unsafe.Pointer(&b[0:SizeofXfrmSelector][0]))
}
func (msg *XfrmSelector) Serialize() []byte {
return (*(*[SizeofXfrmSelector]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_lifetime_cfg {
// __u64 soft_byte_limit;
// __u64 hard_byte_limit;
// __u64 soft_packet_limit;
// __u64 hard_packet_limit;
// __u64 soft_add_expires_seconds;
// __u64 hard_add_expires_seconds;
// __u64 soft_use_expires_seconds;
// __u64 hard_use_expires_seconds;
// };
//
type XfrmLifetimeCfg struct {
SoftByteLimit uint64
HardByteLimit uint64
SoftPacketLimit uint64
HardPacketLimit uint64
SoftAddExpiresSeconds uint64
HardAddExpiresSeconds uint64
SoftUseExpiresSeconds uint64
HardUseExpiresSeconds uint64
}
func (msg *XfrmLifetimeCfg) Len() int {
return SizeofXfrmLifetimeCfg
}
func DeserializeXfrmLifetimeCfg(b []byte) *XfrmLifetimeCfg {
return (*XfrmLifetimeCfg)(unsafe.Pointer(&b[0:SizeofXfrmLifetimeCfg][0]))
}
func (msg *XfrmLifetimeCfg) Serialize() []byte {
return (*(*[SizeofXfrmLifetimeCfg]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_lifetime_cur {
// __u64 bytes;
// __u64 packets;
// __u64 add_time;
// __u64 use_time;
// };
type XfrmLifetimeCur struct {
Bytes uint64
Packets uint64
AddTime uint64
UseTime uint64
}
func (msg *XfrmLifetimeCur) Len() int {
return SizeofXfrmLifetimeCur
}
func DeserializeXfrmLifetimeCur(b []byte) *XfrmLifetimeCur {
return (*XfrmLifetimeCur)(unsafe.Pointer(&b[0:SizeofXfrmLifetimeCur][0]))
}
func (msg *XfrmLifetimeCur) Serialize() []byte {
return (*(*[SizeofXfrmLifetimeCur]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_id {
// xfrm_address_t daddr;
// __be32 spi;
// __u8 proto;
// };
type XfrmId struct {
Daddr XfrmAddress
Spi uint32 // big endian
Proto uint8
Pad [3]byte
}
func (msg *XfrmId) Len() int {
return SizeofXfrmId
}
func DeserializeXfrmId(b []byte) *XfrmId {
return (*XfrmId)(unsafe.Pointer(&b[0:SizeofXfrmId][0]))
}
func (msg *XfrmId) Serialize() []byte {
return (*(*[SizeofXfrmId]byte)(unsafe.Pointer(msg)))[:]
}

161
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/xfrm_linux_test.go generated vendored Normal file
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package nl
import (
"bytes"
"crypto/rand"
"encoding/binary"
"testing"
)
func (msg *XfrmAddress) write(b []byte) {
copy(b[0:SizeofXfrmAddress], msg[:])
}
func (msg *XfrmAddress) serializeSafe() []byte {
b := make([]byte, SizeofXfrmAddress)
msg.write(b)
return b
}
func deserializeXfrmAddressSafe(b []byte) *XfrmAddress {
var msg = XfrmAddress{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmAddress]), NativeEndian(), &msg)
return &msg
}
func TestXfrmAddressDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmAddress)
rand.Read(orig)
safemsg := deserializeXfrmAddressSafe(orig)
msg := DeserializeXfrmAddress(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmSelector) write(b []byte) {
const AddrEnd = SizeofXfrmAddress * 2
native := NativeEndian()
msg.Daddr.write(b[0:SizeofXfrmAddress])
msg.Saddr.write(b[SizeofXfrmAddress:AddrEnd])
native.PutUint16(b[AddrEnd:AddrEnd+2], msg.Dport)
native.PutUint16(b[AddrEnd+2:AddrEnd+4], msg.DportMask)
native.PutUint16(b[AddrEnd+4:AddrEnd+6], msg.Sport)
native.PutUint16(b[AddrEnd+6:AddrEnd+8], msg.SportMask)
native.PutUint16(b[AddrEnd+8:AddrEnd+10], msg.Family)
b[AddrEnd+10] = msg.PrefixlenD
b[AddrEnd+11] = msg.PrefixlenS
b[AddrEnd+12] = msg.Proto
copy(b[AddrEnd+13:AddrEnd+16], msg.Pad[:])
native.PutUint32(b[AddrEnd+16:AddrEnd+20], uint32(msg.Ifindex))
native.PutUint32(b[AddrEnd+20:AddrEnd+24], msg.User)
}
func (msg *XfrmSelector) serializeSafe() []byte {
length := SizeofXfrmSelector
b := make([]byte, length)
msg.write(b)
return b
}
func deserializeXfrmSelectorSafe(b []byte) *XfrmSelector {
var msg = XfrmSelector{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmSelector]), NativeEndian(), &msg)
return &msg
}
func TestXfrmSelectorDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmSelector)
rand.Read(orig)
safemsg := deserializeXfrmSelectorSafe(orig)
msg := DeserializeXfrmSelector(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmLifetimeCfg) write(b []byte) {
native := NativeEndian()
native.PutUint64(b[0:8], msg.SoftByteLimit)
native.PutUint64(b[8:16], msg.HardByteLimit)
native.PutUint64(b[16:24], msg.SoftPacketLimit)
native.PutUint64(b[24:32], msg.HardPacketLimit)
native.PutUint64(b[32:40], msg.SoftAddExpiresSeconds)
native.PutUint64(b[40:48], msg.HardAddExpiresSeconds)
native.PutUint64(b[48:56], msg.SoftUseExpiresSeconds)
native.PutUint64(b[56:64], msg.HardUseExpiresSeconds)
}
func (msg *XfrmLifetimeCfg) serializeSafe() []byte {
length := SizeofXfrmLifetimeCfg
b := make([]byte, length)
msg.write(b)
return b
}
func deserializeXfrmLifetimeCfgSafe(b []byte) *XfrmLifetimeCfg {
var msg = XfrmLifetimeCfg{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmLifetimeCfg]), NativeEndian(), &msg)
return &msg
}
func TestXfrmLifetimeCfgDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmLifetimeCfg)
rand.Read(orig)
safemsg := deserializeXfrmLifetimeCfgSafe(orig)
msg := DeserializeXfrmLifetimeCfg(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmLifetimeCur) write(b []byte) {
native := NativeEndian()
native.PutUint64(b[0:8], msg.Bytes)
native.PutUint64(b[8:16], msg.Packets)
native.PutUint64(b[16:24], msg.AddTime)
native.PutUint64(b[24:32], msg.UseTime)
}
func (msg *XfrmLifetimeCur) serializeSafe() []byte {
length := SizeofXfrmLifetimeCur
b := make([]byte, length)
msg.write(b)
return b
}
func deserializeXfrmLifetimeCurSafe(b []byte) *XfrmLifetimeCur {
var msg = XfrmLifetimeCur{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmLifetimeCur]), NativeEndian(), &msg)
return &msg
}
func TestXfrmLifetimeCurDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmLifetimeCur)
rand.Read(orig)
safemsg := deserializeXfrmLifetimeCurSafe(orig)
msg := DeserializeXfrmLifetimeCur(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmId) write(b []byte) {
native := NativeEndian()
msg.Daddr.write(b[0:SizeofXfrmAddress])
native.PutUint32(b[SizeofXfrmAddress:SizeofXfrmAddress+4], msg.Spi)
b[SizeofXfrmAddress+4] = msg.Proto
copy(b[SizeofXfrmAddress+5:SizeofXfrmAddress+8], msg.Pad[:])
}
func (msg *XfrmId) serializeSafe() []byte {
b := make([]byte, SizeofXfrmId)
msg.write(b)
return b
}
func deserializeXfrmIdSafe(b []byte) *XfrmId {
var msg = XfrmId{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmId]), NativeEndian(), &msg)
return &msg
}
func TestXfrmIdDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmId)
rand.Read(orig)
safemsg := deserializeXfrmIdSafe(orig)
msg := DeserializeXfrmId(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}

119
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/xfrm_policy_linux.go generated vendored Normal file
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package nl
import (
"unsafe"
)
const (
SizeofXfrmUserpolicyId = 0x40
SizeofXfrmUserpolicyInfo = 0xa8
SizeofXfrmUserTmpl = 0x40
)
// struct xfrm_userpolicy_id {
// struct xfrm_selector sel;
// __u32 index;
// __u8 dir;
// };
//
type XfrmUserpolicyId struct {
Sel XfrmSelector
Index uint32
Dir uint8
Pad [3]byte
}
func (msg *XfrmUserpolicyId) Len() int {
return SizeofXfrmUserpolicyId
}
func DeserializeXfrmUserpolicyId(b []byte) *XfrmUserpolicyId {
return (*XfrmUserpolicyId)(unsafe.Pointer(&b[0:SizeofXfrmUserpolicyId][0]))
}
func (msg *XfrmUserpolicyId) Serialize() []byte {
return (*(*[SizeofXfrmUserpolicyId]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_userpolicy_info {
// struct xfrm_selector sel;
// struct xfrm_lifetime_cfg lft;
// struct xfrm_lifetime_cur curlft;
// __u32 priority;
// __u32 index;
// __u8 dir;
// __u8 action;
// #define XFRM_POLICY_ALLOW 0
// #define XFRM_POLICY_BLOCK 1
// __u8 flags;
// #define XFRM_POLICY_LOCALOK 1 /* Allow user to override global policy */
// /* Automatically expand selector to include matching ICMP payloads. */
// #define XFRM_POLICY_ICMP 2
// __u8 share;
// };
type XfrmUserpolicyInfo struct {
Sel XfrmSelector
Lft XfrmLifetimeCfg
Curlft XfrmLifetimeCur
Priority uint32
Index uint32
Dir uint8
Action uint8
Flags uint8
Share uint8
Pad [4]byte
}
func (msg *XfrmUserpolicyInfo) Len() int {
return SizeofXfrmUserpolicyInfo
}
func DeserializeXfrmUserpolicyInfo(b []byte) *XfrmUserpolicyInfo {
return (*XfrmUserpolicyInfo)(unsafe.Pointer(&b[0:SizeofXfrmUserpolicyInfo][0]))
}
func (msg *XfrmUserpolicyInfo) Serialize() []byte {
return (*(*[SizeofXfrmUserpolicyInfo]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_user_tmpl {
// struct xfrm_id id;
// __u16 family;
// xfrm_address_t saddr;
// __u32 reqid;
// __u8 mode;
// __u8 share;
// __u8 optional;
// __u32 aalgos;
// __u32 ealgos;
// __u32 calgos;
// }
type XfrmUserTmpl struct {
XfrmId XfrmId
Family uint16
Pad1 [2]byte
Saddr XfrmAddress
Reqid uint32
Mode uint8
Share uint8
Optional uint8
Pad2 byte
Aalgos uint32
Ealgos uint32
Calgos uint32
}
func (msg *XfrmUserTmpl) Len() int {
return SizeofXfrmUserTmpl
}
func DeserializeXfrmUserTmpl(b []byte) *XfrmUserTmpl {
return (*XfrmUserTmpl)(unsafe.Pointer(&b[0:SizeofXfrmUserTmpl][0]))
}
func (msg *XfrmUserTmpl) Serialize() []byte {
return (*(*[SizeofXfrmUserTmpl]byte)(unsafe.Pointer(msg)))[:]
}

109
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/xfrm_policy_linux_test.go generated vendored Normal file
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package nl
import (
"bytes"
"crypto/rand"
"encoding/binary"
"testing"
)
func (msg *XfrmUserpolicyId) write(b []byte) {
native := NativeEndian()
msg.Sel.write(b[0:SizeofXfrmSelector])
native.PutUint32(b[SizeofXfrmSelector:SizeofXfrmSelector+4], msg.Index)
b[SizeofXfrmSelector+4] = msg.Dir
copy(b[SizeofXfrmSelector+5:SizeofXfrmSelector+8], msg.Pad[:])
}
func (msg *XfrmUserpolicyId) serializeSafe() []byte {
b := make([]byte, SizeofXfrmUserpolicyId)
msg.write(b)
return b
}
func deserializeXfrmUserpolicyIdSafe(b []byte) *XfrmUserpolicyId {
var msg = XfrmUserpolicyId{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmUserpolicyId]), NativeEndian(), &msg)
return &msg
}
func TestXfrmUserpolicyIdDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmUserpolicyId)
rand.Read(orig)
safemsg := deserializeXfrmUserpolicyIdSafe(orig)
msg := DeserializeXfrmUserpolicyId(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmUserpolicyInfo) write(b []byte) {
const CfgEnd = SizeofXfrmSelector + SizeofXfrmLifetimeCfg
const CurEnd = CfgEnd + SizeofXfrmLifetimeCur
native := NativeEndian()
msg.Sel.write(b[0:SizeofXfrmSelector])
msg.Lft.write(b[SizeofXfrmSelector:CfgEnd])
msg.Curlft.write(b[CfgEnd:CurEnd])
native.PutUint32(b[CurEnd:CurEnd+4], msg.Priority)
native.PutUint32(b[CurEnd+4:CurEnd+8], msg.Index)
b[CurEnd+8] = msg.Dir
b[CurEnd+9] = msg.Action
b[CurEnd+10] = msg.Flags
b[CurEnd+11] = msg.Share
copy(b[CurEnd+12:CurEnd+16], msg.Pad[:])
}
func (msg *XfrmUserpolicyInfo) serializeSafe() []byte {
b := make([]byte, SizeofXfrmUserpolicyInfo)
msg.write(b)
return b
}
func deserializeXfrmUserpolicyInfoSafe(b []byte) *XfrmUserpolicyInfo {
var msg = XfrmUserpolicyInfo{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmUserpolicyInfo]), NativeEndian(), &msg)
return &msg
}
func TestXfrmUserpolicyInfoDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmUserpolicyInfo)
rand.Read(orig)
safemsg := deserializeXfrmUserpolicyInfoSafe(orig)
msg := DeserializeXfrmUserpolicyInfo(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmUserTmpl) write(b []byte) {
const AddrEnd = SizeofXfrmId + 4 + SizeofXfrmAddress
native := NativeEndian()
msg.XfrmId.write(b[0:SizeofXfrmId])
native.PutUint16(b[SizeofXfrmId:SizeofXfrmId+2], msg.Family)
copy(b[SizeofXfrmId+2:SizeofXfrmId+4], msg.Pad1[:])
msg.Saddr.write(b[SizeofXfrmId+4 : AddrEnd])
native.PutUint32(b[AddrEnd:AddrEnd+4], msg.Reqid)
b[AddrEnd+4] = msg.Mode
b[AddrEnd+5] = msg.Share
b[AddrEnd+6] = msg.Optional
b[AddrEnd+7] = msg.Pad2
native.PutUint32(b[AddrEnd+8:AddrEnd+12], msg.Aalgos)
native.PutUint32(b[AddrEnd+12:AddrEnd+16], msg.Ealgos)
native.PutUint32(b[AddrEnd+16:AddrEnd+20], msg.Calgos)
}
func (msg *XfrmUserTmpl) serializeSafe() []byte {
b := make([]byte, SizeofXfrmUserTmpl)
msg.write(b)
return b
}
func deserializeXfrmUserTmplSafe(b []byte) *XfrmUserTmpl {
var msg = XfrmUserTmpl{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmUserTmpl]), NativeEndian(), &msg)
return &msg
}
func TestXfrmUserTmplDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmUserTmpl)
rand.Read(orig)
safemsg := deserializeXfrmUserTmplSafe(orig)
msg := DeserializeXfrmUserTmpl(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}

221
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/xfrm_state_linux.go generated vendored Normal file
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package nl
import (
"unsafe"
)
const (
SizeofXfrmUsersaId = 0x18
SizeofXfrmStats = 0x0c
SizeofXfrmUsersaInfo = 0xe0
SizeofXfrmAlgo = 0x44
SizeofXfrmAlgoAuth = 0x48
SizeofXfrmEncapTmpl = 0x18
)
// struct xfrm_usersa_id {
// xfrm_address_t daddr;
// __be32 spi;
// __u16 family;
// __u8 proto;
// };
type XfrmUsersaId struct {
Daddr XfrmAddress
Spi uint32 // big endian
Family uint16
Proto uint8
Pad byte
}
func (msg *XfrmUsersaId) Len() int {
return SizeofXfrmUsersaId
}
func DeserializeXfrmUsersaId(b []byte) *XfrmUsersaId {
return (*XfrmUsersaId)(unsafe.Pointer(&b[0:SizeofXfrmUsersaId][0]))
}
func (msg *XfrmUsersaId) Serialize() []byte {
return (*(*[SizeofXfrmUsersaId]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_stats {
// __u32 replay_window;
// __u32 replay;
// __u32 integrity_failed;
// };
type XfrmStats struct {
ReplayWindow uint32
Replay uint32
IntegrityFailed uint32
}
func (msg *XfrmStats) Len() int {
return SizeofXfrmStats
}
func DeserializeXfrmStats(b []byte) *XfrmStats {
return (*XfrmStats)(unsafe.Pointer(&b[0:SizeofXfrmStats][0]))
}
func (msg *XfrmStats) Serialize() []byte {
return (*(*[SizeofXfrmStats]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_usersa_info {
// struct xfrm_selector sel;
// struct xfrm_id id;
// xfrm_address_t saddr;
// struct xfrm_lifetime_cfg lft;
// struct xfrm_lifetime_cur curlft;
// struct xfrm_stats stats;
// __u32 seq;
// __u32 reqid;
// __u16 family;
// __u8 mode; /* XFRM_MODE_xxx */
// __u8 replay_window;
// __u8 flags;
// #define XFRM_STATE_NOECN 1
// #define XFRM_STATE_DECAP_DSCP 2
// #define XFRM_STATE_NOPMTUDISC 4
// #define XFRM_STATE_WILDRECV 8
// #define XFRM_STATE_ICMP 16
// #define XFRM_STATE_AF_UNSPEC 32
// #define XFRM_STATE_ALIGN4 64
// #define XFRM_STATE_ESN 128
// };
//
// #define XFRM_SA_XFLAG_DONT_ENCAP_DSCP 1
//
type XfrmUsersaInfo struct {
Sel XfrmSelector
Id XfrmId
Saddr XfrmAddress
Lft XfrmLifetimeCfg
Curlft XfrmLifetimeCur
Stats XfrmStats
Seq uint32
Reqid uint32
Family uint16
Mode uint8
ReplayWindow uint8
Flags uint8
Pad [7]byte
}
func (msg *XfrmUsersaInfo) Len() int {
return SizeofXfrmUsersaInfo
}
func DeserializeXfrmUsersaInfo(b []byte) *XfrmUsersaInfo {
return (*XfrmUsersaInfo)(unsafe.Pointer(&b[0:SizeofXfrmUsersaInfo][0]))
}
func (msg *XfrmUsersaInfo) Serialize() []byte {
return (*(*[SizeofXfrmUsersaInfo]byte)(unsafe.Pointer(msg)))[:]
}
// struct xfrm_algo {
// char alg_name[64];
// unsigned int alg_key_len; /* in bits */
// char alg_key[0];
// };
type XfrmAlgo struct {
AlgName [64]byte
AlgKeyLen uint32
AlgKey []byte
}
func (msg *XfrmAlgo) Len() int {
return SizeofXfrmAlgo + int(msg.AlgKeyLen/8)
}
func DeserializeXfrmAlgo(b []byte) *XfrmAlgo {
ret := XfrmAlgo{}
copy(ret.AlgName[:], b[0:64])
ret.AlgKeyLen = *(*uint32)(unsafe.Pointer(&b[64]))
ret.AlgKey = b[68:ret.Len()]
return &ret
}
func (msg *XfrmAlgo) Serialize() []byte {
b := make([]byte, msg.Len())
copy(b[0:64], msg.AlgName[:])
copy(b[64:68], (*(*[4]byte)(unsafe.Pointer(&msg.AlgKeyLen)))[:])
copy(b[68:msg.Len()], msg.AlgKey[:])
return b
}
// struct xfrm_algo_auth {
// char alg_name[64];
// unsigned int alg_key_len; /* in bits */
// unsigned int alg_trunc_len; /* in bits */
// char alg_key[0];
// };
type XfrmAlgoAuth struct {
AlgName [64]byte
AlgKeyLen uint32
AlgTruncLen uint32
AlgKey []byte
}
func (msg *XfrmAlgoAuth) Len() int {
return SizeofXfrmAlgoAuth + int(msg.AlgKeyLen/8)
}
func DeserializeXfrmAlgoAuth(b []byte) *XfrmAlgoAuth {
ret := XfrmAlgoAuth{}
copy(ret.AlgName[:], b[0:64])
ret.AlgKeyLen = *(*uint32)(unsafe.Pointer(&b[64]))
ret.AlgTruncLen = *(*uint32)(unsafe.Pointer(&b[68]))
ret.AlgKey = b[72:ret.Len()]
return &ret
}
func (msg *XfrmAlgoAuth) Serialize() []byte {
b := make([]byte, msg.Len())
copy(b[0:64], msg.AlgName[:])
copy(b[64:68], (*(*[4]byte)(unsafe.Pointer(&msg.AlgKeyLen)))[:])
copy(b[68:72], (*(*[4]byte)(unsafe.Pointer(&msg.AlgTruncLen)))[:])
copy(b[72:msg.Len()], msg.AlgKey[:])
return b
}
// struct xfrm_algo_aead {
// char alg_name[64];
// unsigned int alg_key_len; /* in bits */
// unsigned int alg_icv_len; /* in bits */
// char alg_key[0];
// }
// struct xfrm_encap_tmpl {
// __u16 encap_type;
// __be16 encap_sport;
// __be16 encap_dport;
// xfrm_address_t encap_oa;
// };
type XfrmEncapTmpl struct {
EncapType uint16
EncapSport uint16 // big endian
EncapDport uint16 // big endian
Pad [2]byte
EncapOa XfrmAddress
}
func (msg *XfrmEncapTmpl) Len() int {
return SizeofXfrmEncapTmpl
}
func DeserializeXfrmEncapTmpl(b []byte) *XfrmEncapTmpl {
return (*XfrmEncapTmpl)(unsafe.Pointer(&b[0:SizeofXfrmEncapTmpl][0]))
}
func (msg *XfrmEncapTmpl) Serialize() []byte {
return (*(*[SizeofXfrmEncapTmpl]byte)(unsafe.Pointer(msg)))[:]
}

207
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/nl/xfrm_state_linux_test.go generated vendored Normal file
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package nl
import (
"bytes"
"crypto/rand"
"encoding/binary"
"testing"
)
func (msg *XfrmUsersaId) write(b []byte) {
native := NativeEndian()
msg.Daddr.write(b[0:SizeofXfrmAddress])
native.PutUint32(b[SizeofXfrmAddress:SizeofXfrmAddress+4], msg.Spi)
native.PutUint16(b[SizeofXfrmAddress+4:SizeofXfrmAddress+6], msg.Family)
b[SizeofXfrmAddress+6] = msg.Proto
b[SizeofXfrmAddress+7] = msg.Pad
}
func (msg *XfrmUsersaId) serializeSafe() []byte {
b := make([]byte, SizeofXfrmUsersaId)
msg.write(b)
return b
}
func deserializeXfrmUsersaIdSafe(b []byte) *XfrmUsersaId {
var msg = XfrmUsersaId{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmUsersaId]), NativeEndian(), &msg)
return &msg
}
func TestXfrmUsersaIdDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmUsersaId)
rand.Read(orig)
safemsg := deserializeXfrmUsersaIdSafe(orig)
msg := DeserializeXfrmUsersaId(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmStats) write(b []byte) {
native := NativeEndian()
native.PutUint32(b[0:4], msg.ReplayWindow)
native.PutUint32(b[4:8], msg.Replay)
native.PutUint32(b[8:12], msg.IntegrityFailed)
}
func (msg *XfrmStats) serializeSafe() []byte {
b := make([]byte, SizeofXfrmStats)
msg.write(b)
return b
}
func deserializeXfrmStatsSafe(b []byte) *XfrmStats {
var msg = XfrmStats{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmStats]), NativeEndian(), &msg)
return &msg
}
func TestXfrmStatsDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmStats)
rand.Read(orig)
safemsg := deserializeXfrmStatsSafe(orig)
msg := DeserializeXfrmStats(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmUsersaInfo) write(b []byte) {
const IdEnd = SizeofXfrmSelector + SizeofXfrmId
const AddressEnd = IdEnd + SizeofXfrmAddress
const CfgEnd = AddressEnd + SizeofXfrmLifetimeCfg
const CurEnd = CfgEnd + SizeofXfrmLifetimeCur
const StatsEnd = CurEnd + SizeofXfrmStats
native := NativeEndian()
msg.Sel.write(b[0:SizeofXfrmSelector])
msg.Id.write(b[SizeofXfrmSelector:IdEnd])
msg.Saddr.write(b[IdEnd:AddressEnd])
msg.Lft.write(b[AddressEnd:CfgEnd])
msg.Curlft.write(b[CfgEnd:CurEnd])
msg.Stats.write(b[CurEnd:StatsEnd])
native.PutUint32(b[StatsEnd:StatsEnd+4], msg.Seq)
native.PutUint32(b[StatsEnd+4:StatsEnd+8], msg.Reqid)
native.PutUint16(b[StatsEnd+8:StatsEnd+10], msg.Family)
b[StatsEnd+10] = msg.Mode
b[StatsEnd+11] = msg.ReplayWindow
b[StatsEnd+12] = msg.Flags
copy(b[StatsEnd+13:StatsEnd+20], msg.Pad[:])
}
func (msg *XfrmUsersaInfo) serializeSafe() []byte {
b := make([]byte, SizeofXfrmUsersaInfo)
msg.write(b)
return b
}
func deserializeXfrmUsersaInfoSafe(b []byte) *XfrmUsersaInfo {
var msg = XfrmUsersaInfo{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmUsersaInfo]), NativeEndian(), &msg)
return &msg
}
func TestXfrmUsersaInfoDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmUsersaInfo)
rand.Read(orig)
safemsg := deserializeXfrmUsersaInfoSafe(orig)
msg := DeserializeXfrmUsersaInfo(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmAlgo) write(b []byte) {
native := NativeEndian()
copy(b[0:64], msg.AlgName[:])
native.PutUint32(b[64:68], msg.AlgKeyLen)
copy(b[68:msg.Len()], msg.AlgKey[:])
}
func (msg *XfrmAlgo) serializeSafe() []byte {
b := make([]byte, msg.Len())
msg.write(b)
return b
}
func deserializeXfrmAlgoSafe(b []byte) *XfrmAlgo {
var msg = XfrmAlgo{}
copy(msg.AlgName[:], b[0:64])
binary.Read(bytes.NewReader(b[64:68]), NativeEndian(), &msg.AlgKeyLen)
msg.AlgKey = b[68:msg.Len()]
return &msg
}
func TestXfrmAlgoDeserializeSerialize(t *testing.T) {
// use a 32 byte key len
var orig = make([]byte, SizeofXfrmAlgo+32)
rand.Read(orig)
// set the key len to 256 bits
orig[64] = 0
orig[65] = 1
orig[66] = 0
orig[67] = 0
safemsg := deserializeXfrmAlgoSafe(orig)
msg := DeserializeXfrmAlgo(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmAlgoAuth) write(b []byte) {
native := NativeEndian()
copy(b[0:64], msg.AlgName[:])
native.PutUint32(b[64:68], msg.AlgKeyLen)
native.PutUint32(b[68:72], msg.AlgTruncLen)
copy(b[72:msg.Len()], msg.AlgKey[:])
}
func (msg *XfrmAlgoAuth) serializeSafe() []byte {
b := make([]byte, msg.Len())
msg.write(b)
return b
}
func deserializeXfrmAlgoAuthSafe(b []byte) *XfrmAlgoAuth {
var msg = XfrmAlgoAuth{}
copy(msg.AlgName[:], b[0:64])
binary.Read(bytes.NewReader(b[64:68]), NativeEndian(), &msg.AlgKeyLen)
binary.Read(bytes.NewReader(b[68:72]), NativeEndian(), &msg.AlgTruncLen)
msg.AlgKey = b[72:msg.Len()]
return &msg
}
func TestXfrmAlgoAuthDeserializeSerialize(t *testing.T) {
// use a 32 byte key len
var orig = make([]byte, SizeofXfrmAlgoAuth+32)
rand.Read(orig)
// set the key len to 256 bits
orig[64] = 0
orig[65] = 1
orig[66] = 0
orig[67] = 0
safemsg := deserializeXfrmAlgoAuthSafe(orig)
msg := DeserializeXfrmAlgoAuth(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}
func (msg *XfrmEncapTmpl) write(b []byte) {
native := NativeEndian()
native.PutUint16(b[0:2], msg.EncapType)
native.PutUint16(b[2:4], msg.EncapSport)
native.PutUint16(b[4:6], msg.EncapDport)
copy(b[6:8], msg.Pad[:])
msg.EncapOa.write(b[8:SizeofXfrmAddress])
}
func (msg *XfrmEncapTmpl) serializeSafe() []byte {
b := make([]byte, SizeofXfrmEncapTmpl)
msg.write(b)
return b
}
func deserializeXfrmEncapTmplSafe(b []byte) *XfrmEncapTmpl {
var msg = XfrmEncapTmpl{}
binary.Read(bytes.NewReader(b[0:SizeofXfrmEncapTmpl]), NativeEndian(), &msg)
return &msg
}
func TestXfrmEncapTmplDeserializeSerialize(t *testing.T) {
var orig = make([]byte, SizeofXfrmEncapTmpl)
rand.Read(orig)
safemsg := deserializeXfrmEncapTmplSafe(orig)
msg := DeserializeXfrmEncapTmpl(orig)
testDeserializeSerialize(t, orig, safemsg, msg)
}

53
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/protinfo.go generated vendored Normal file
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@ -0,0 +1,53 @@
package netlink
import (
"strings"
)
// Protinfo represents bridge flags from netlink.
type Protinfo struct {
Hairpin bool
Guard bool
FastLeave bool
RootBlock bool
Learning bool
Flood bool
}
// String returns a list of enabled flags
func (prot *Protinfo) String() string {
boolStrings := make([]string, 0)
if prot.Hairpin {
boolStrings = append(boolStrings, "Hairpin")
}
if prot.Guard {
boolStrings = append(boolStrings, "Guard")
}
if prot.FastLeave {
boolStrings = append(boolStrings, "FastLeave")
}
if prot.RootBlock {
boolStrings = append(boolStrings, "RootBlock")
}
if prot.Learning {
boolStrings = append(boolStrings, "Learning")
}
if prot.Flood {
boolStrings = append(boolStrings, "Flood")
}
return strings.Join(boolStrings, " ")
}
func boolToByte(x bool) []byte {
if x {
return []byte{1}
}
return []byte{0}
}
func byteToBool(x byte) bool {
if uint8(x) != 0 {
return true
}
return false
}

60
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/protinfo_linux.go generated vendored Normal file
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@ -0,0 +1,60 @@
package netlink
import (
"fmt"
"syscall"
"github.com/vishvananda/netlink/nl"
)
func LinkGetProtinfo(link Link) (Protinfo, error) {
base := link.Attrs()
ensureIndex(base)
var pi Protinfo
req := nl.NewNetlinkRequest(syscall.RTM_GETLINK, syscall.NLM_F_DUMP)
msg := nl.NewIfInfomsg(syscall.AF_BRIDGE)
req.AddData(msg)
msgs, err := req.Execute(syscall.NETLINK_ROUTE, 0)
if err != nil {
return pi, err
}
for _, m := range msgs {
ans := nl.DeserializeIfInfomsg(m)
if int(ans.Index) != base.Index {
continue
}
attrs, err := nl.ParseRouteAttr(m[ans.Len():])
if err != nil {
return pi, err
}
for _, attr := range attrs {
if attr.Attr.Type != syscall.IFLA_PROTINFO|syscall.NLA_F_NESTED {
continue
}
infos, err := nl.ParseRouteAttr(attr.Value)
if err != nil {
return pi, err
}
var pi Protinfo
for _, info := range infos {
switch info.Attr.Type {
case nl.IFLA_BRPORT_MODE:
pi.Hairpin = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_GUARD:
pi.Guard = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_FAST_LEAVE:
pi.FastLeave = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_PROTECT:
pi.RootBlock = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_LEARNING:
pi.Learning = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_UNICAST_FLOOD:
pi.Flood = byteToBool(info.Value[0])
}
}
return pi, nil
}
}
return pi, fmt.Errorf("Device with index %d not found", base.Index)
}

98
libnetwork/Godeps/_workspace/src/github.com/vishvananda/netlink/protinfo_test.go generated vendored Normal file
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@ -0,0 +1,98 @@
package netlink
import "testing"
func TestProtinfo(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
master := &Bridge{LinkAttrs{Name: "foo"}}
if err := LinkAdd(master); err != nil {
t.Fatal(err)
}
iface1 := &Dummy{LinkAttrs{Name: "bar1", MasterIndex: master.Index}}
iface2 := &Dummy{LinkAttrs{Name: "bar2", MasterIndex: master.Index}}
iface3 := &Dummy{LinkAttrs{Name: "bar3"}}
if err := LinkAdd(iface1); err != nil {
t.Fatal(err)
}
if err := LinkAdd(iface2); err != nil {
t.Fatal(err)
}
if err := LinkAdd(iface3); err != nil {
t.Fatal(err)
}
oldpi1, err := LinkGetProtinfo(iface1)
if err != nil {
t.Fatal(err)
}
oldpi2, err := LinkGetProtinfo(iface2)
if err != nil {
t.Fatal(err)
}
if err := LinkSetHairpin(iface1, true); err != nil {
t.Fatal(err)
}
if err := LinkSetRootBlock(iface1, true); err != nil {
t.Fatal(err)
}
pi1, err := LinkGetProtinfo(iface1)
if err != nil {
t.Fatal(err)
}
if !pi1.Hairpin {
t.Fatalf("Hairpin mode is not enabled for %s, but should", iface1.Name)
}
if !pi1.RootBlock {
t.Fatalf("RootBlock is not enabled for %s, but should", iface1.Name)
}
if pi1.Guard != oldpi1.Guard {
t.Fatalf("Guard field was changed for %s but shouldn't", iface1.Name)
}
if pi1.FastLeave != oldpi1.FastLeave {
t.Fatalf("FastLeave field was changed for %s but shouldn't", iface1.Name)
}
if pi1.Learning != oldpi1.Learning {
t.Fatalf("Learning field was changed for %s but shouldn't", iface1.Name)
}
if pi1.Flood != oldpi1.Flood {
t.Fatalf("Flood field was changed for %s but shouldn't", iface1.Name)
}
if err := LinkSetGuard(iface2, true); err != nil {
t.Fatal(err)
}
if err := LinkSetLearning(iface2, false); err != nil {
t.Fatal(err)
}
pi2, err := LinkGetProtinfo(iface2)
if err != nil {
t.Fatal(err)
}
if pi2.Hairpin {
t.Fatalf("Hairpin mode is enabled for %s, but shouldn't", iface2.Name)
}
if !pi2.Guard {
t.Fatalf("Guard is not enabled for %s, but should", iface2.Name)
}
if pi2.Learning {
t.Fatalf("Learning is enabled for %s, but shouldn't", iface2.Name)
}
if pi2.RootBlock != oldpi2.RootBlock {
t.Fatalf("RootBlock field was changed for %s but shouldn't", iface2.Name)
}
if pi2.FastLeave != oldpi2.FastLeave {
t.Fatalf("FastLeave field was changed for %s but shouldn't", iface2.Name)
}
if pi2.Flood != oldpi2.Flood {
t.Fatalf("Flood field was changed for %s but shouldn't", iface2.Name)
}
if err := LinkSetHairpin(iface3, true); err == nil || err.Error() != "operation not supported" {
t.Fatalf("Set protinfo attrs for link without master is not supported, but err: %s", err)
}
}

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