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Diffstat (limited to 'runsc/container/test_app/test_app.go')
-rw-r--r--runsc/container/test_app/test_app.go289
1 files changed, 0 insertions, 289 deletions
diff --git a/runsc/container/test_app/test_app.go b/runsc/container/test_app/test_app.go
deleted file mode 100644
index 7f735c254..000000000
--- a/runsc/container/test_app/test_app.go
+++ /dev/null
@@ -1,289 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// 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.
-
-// Binary test_app is like a swiss knife for tests that need to run anything
-// inside the sandbox. New functionality can be added with new commands.
-package main
-
-import (
- "context"
- "fmt"
- "log"
- "net"
- "os"
- "os/exec"
- "strconv"
- sys "syscall"
- "time"
-
- "flag"
- "github.com/google/subcommands"
- "gvisor.dev/gvisor/runsc/testutil"
-)
-
-func main() {
- subcommands.Register(subcommands.HelpCommand(), "")
- subcommands.Register(subcommands.FlagsCommand(), "")
- subcommands.Register(new(fdReceiver), "")
- subcommands.Register(new(fdSender), "")
- subcommands.Register(new(forkBomb), "")
- subcommands.Register(new(reaper), "")
- subcommands.Register(new(syscall), "")
- subcommands.Register(new(taskTree), "")
- subcommands.Register(new(uds), "")
-
- flag.Parse()
-
- exitCode := subcommands.Execute(context.Background())
- os.Exit(int(exitCode))
-}
-
-type uds struct {
- fileName string
- socketPath string
-}
-
-// Name implements subcommands.Command.Name.
-func (*uds) Name() string {
- return "uds"
-}
-
-// Synopsis implements subcommands.Command.Synopsys.
-func (*uds) Synopsis() string {
- return "creates unix domain socket client and server. Client sends a contant flow of sequential numbers. Server prints them to --file"
-}
-
-// Usage implements subcommands.Command.Usage.
-func (*uds) Usage() string {
- return "uds <flags>"
-}
-
-// SetFlags implements subcommands.Command.SetFlags.
-func (c *uds) SetFlags(f *flag.FlagSet) {
- f.StringVar(&c.fileName, "file", "", "name of output file")
- f.StringVar(&c.socketPath, "socket", "", "path to socket")
-}
-
-// Execute implements subcommands.Command.Execute.
-func (c *uds) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus {
- if c.fileName == "" || c.socketPath == "" {
- log.Fatalf("Flags cannot be empty, given: fileName: %q, socketPath: %q", c.fileName, c.socketPath)
- return subcommands.ExitFailure
- }
- outputFile, err := os.OpenFile(c.fileName, os.O_WRONLY|os.O_CREATE, 0666)
- if err != nil {
- log.Fatal("error opening output file:", err)
- }
-
- defer os.Remove(c.socketPath)
-
- listener, err := net.Listen("unix", c.socketPath)
- if err != nil {
- log.Fatal("error listening on socket %q:", c.socketPath, err)
- }
-
- go server(listener, outputFile)
- for i := 0; ; i++ {
- conn, err := net.Dial("unix", c.socketPath)
- if err != nil {
- log.Fatal("error dialing:", err)
- }
- if _, err := conn.Write([]byte(strconv.Itoa(i))); err != nil {
- log.Fatal("error writing:", err)
- }
- conn.Close()
- time.Sleep(100 * time.Millisecond)
- }
-}
-
-func server(listener net.Listener, out *os.File) {
- buf := make([]byte, 16)
-
- for {
- c, err := listener.Accept()
- if err != nil {
- log.Fatal("error accepting connection:", err)
- }
- nr, err := c.Read(buf)
- if err != nil {
- log.Fatal("error reading from buf:", err)
- }
- data := buf[0:nr]
- fmt.Fprint(out, string(data)+"\n")
- }
-}
-
-type taskTree struct {
- depth int
- width int
- pause bool
-}
-
-// Name implements subcommands.Command.
-func (*taskTree) Name() string {
- return "task-tree"
-}
-
-// Synopsis implements subcommands.Command.
-func (*taskTree) Synopsis() string {
- return "creates a tree of tasks"
-}
-
-// Usage implements subcommands.Command.
-func (*taskTree) Usage() string {
- return "task-tree <flags>"
-}
-
-// SetFlags implements subcommands.Command.
-func (c *taskTree) SetFlags(f *flag.FlagSet) {
- f.IntVar(&c.depth, "depth", 1, "number of levels to create")
- f.IntVar(&c.width, "width", 1, "number of tasks at each level")
- f.BoolVar(&c.pause, "pause", false, "whether the tasks should pause perpetually")
-}
-
-// Execute implements subcommands.Command.
-func (c *taskTree) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus {
- stop := testutil.StartReaper()
- defer stop()
-
- if c.depth == 0 {
- log.Printf("Child sleeping, PID: %d\n", os.Getpid())
- select {}
- }
- log.Printf("Parent %d sleeping, PID: %d\n", c.depth, os.Getpid())
-
- var cmds []*exec.Cmd
- for i := 0; i < c.width; i++ {
- cmd := exec.Command(
- "/proc/self/exe", c.Name(),
- "--depth", strconv.Itoa(c.depth-1),
- "--width", strconv.Itoa(c.width),
- "--pause", strconv.FormatBool(c.pause))
- cmd.Stdout = os.Stdout
- cmd.Stderr = os.Stderr
-
- if err := cmd.Start(); err != nil {
- log.Fatal("failed to call self:", err)
- }
- cmds = append(cmds, cmd)
- }
-
- for _, c := range cmds {
- c.Wait()
- }
-
- if c.pause {
- select {}
- }
-
- return subcommands.ExitSuccess
-}
-
-type forkBomb struct {
- delay time.Duration
-}
-
-// Name implements subcommands.Command.
-func (*forkBomb) Name() string {
- return "fork-bomb"
-}
-
-// Synopsis implements subcommands.Command.
-func (*forkBomb) Synopsis() string {
- return "creates child process until the end of times"
-}
-
-// Usage implements subcommands.Command.
-func (*forkBomb) Usage() string {
- return "fork-bomb <flags>"
-}
-
-// SetFlags implements subcommands.Command.
-func (c *forkBomb) SetFlags(f *flag.FlagSet) {
- f.DurationVar(&c.delay, "delay", 100*time.Millisecond, "amount of time to delay creation of child")
-}
-
-// Execute implements subcommands.Command.
-func (c *forkBomb) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus {
- time.Sleep(c.delay)
-
- cmd := exec.Command("/proc/self/exe", c.Name())
- cmd.Stdout = os.Stdout
- cmd.Stderr = os.Stderr
- if err := cmd.Run(); err != nil {
- log.Fatal("failed to call self:", err)
- }
- return subcommands.ExitSuccess
-}
-
-type reaper struct{}
-
-// Name implements subcommands.Command.
-func (*reaper) Name() string {
- return "reaper"
-}
-
-// Synopsis implements subcommands.Command.
-func (*reaper) Synopsis() string {
- return "reaps all children in a loop"
-}
-
-// Usage implements subcommands.Command.
-func (*reaper) Usage() string {
- return "reaper <flags>"
-}
-
-// SetFlags implements subcommands.Command.
-func (*reaper) SetFlags(*flag.FlagSet) {}
-
-// Execute implements subcommands.Command.
-func (c *reaper) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus {
- stop := testutil.StartReaper()
- defer stop()
- select {}
-}
-
-type syscall struct {
- sysno uint64
-}
-
-// Name implements subcommands.Command.
-func (*syscall) Name() string {
- return "syscall"
-}
-
-// Synopsis implements subcommands.Command.
-func (*syscall) Synopsis() string {
- return "syscall makes a syscall"
-}
-
-// Usage implements subcommands.Command.
-func (*syscall) Usage() string {
- return "syscall <flags>"
-}
-
-// SetFlags implements subcommands.Command.
-func (s *syscall) SetFlags(f *flag.FlagSet) {
- f.Uint64Var(&s.sysno, "syscall", 0, "syscall to call")
-}
-
-// Execute implements subcommands.Command.
-func (s *syscall) Execute(ctx context.Context, f *flag.FlagSet, args ...interface{}) subcommands.ExitStatus {
- if _, _, errno := sys.Syscall(uintptr(s.sysno), 0, 0, 0); errno != 0 {
- fmt.Printf("syscall(%d, 0, 0...) failed: %v\n", s.sysno, errno)
- } else {
- fmt.Printf("syscall(%d, 0, 0...) success\n", s.sysno)
- }
- return subcommands.ExitSuccess
-}