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adds ability to kill a process of a userland wireguard-go
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@@ -80,7 +80,6 @@ fabric.properties | |
| .idea/caches/build_file_checksums.ser | ||
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| # OWN | ||
| assets/* | ||
| dist/* | ||
| bin/* | ||
| .envrc | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,7 @@ | ||
| // nolint:gochecknoglobals,golint,stylecheck | ||
| package assets | ||
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| import _ "embed" | ||
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| //go:embed wireguard-go/wireguard-go | ||
| var WGO []byte |
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| @@ -0,0 +1 @@ | ||
| PLACEHOLDER |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,7 @@ | ||
| // +build tools | ||
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| package main | ||
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| import ( | ||
| _ "github.com/vektra/mockery/v2" | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,87 @@ | ||
| package pidof | ||
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| import ( | ||
| "errors" | ||
| "fmt" | ||
| "os/exec" | ||
| "regexp" | ||
| "strconv" | ||
| "strings" | ||
| "syscall" | ||
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| log "github.com/sirupsen/logrus" | ||
| ) | ||
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| //go:generate mockery --name Commander --inpackage --output . | ||
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| var ErrPIDNotFound = fmt.Errorf("could not find pid") | ||
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| type Commander interface { | ||
| Output(cmd string) ([]byte, error) | ||
| } | ||
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| type Cdr struct{} | ||
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| func (c Cdr) Output(cmd string) ([]byte, error) { | ||
| cm := exec.Command("/bin/sh", "-c", cmd) | ||
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| log.WithField("cmd", cm.String()).Debug("command to run") | ||
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| // nolint:wrapcheck | ||
| return cm.Output() | ||
| } | ||
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| func Pidof(name string, cdr Commander) (int, error) { | ||
| p, err := cdr.Output(fmt.Sprintf("ps a|grep '%s'", name)) | ||
| if err != nil { | ||
| log.WithField("output", p).Debug(p) | ||
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| return 0, fmt.Errorf("could not execute ps command: %w", err) | ||
| } | ||
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| for _, l := range strings.Split(string(p), "\n") { | ||
| if strings.Contains(l, name) { | ||
| // nolint:gocritic | ||
| rePID, err := regexp.Compile(`(\d+)\s.+`) | ||
| if err != nil { | ||
| return 0, fmt.Errorf("could not compile re: %w", err) | ||
| } | ||
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| matches := rePID.FindStringSubmatch(l) | ||
| // nolint: gomnd | ||
| if len(matches) == 2 { | ||
| pid, err := strconv.Atoi(matches[1]) | ||
| if err != nil { | ||
| return 0, fmt.Errorf("could not convert string to int: %w", err) | ||
| } | ||
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| return pid, nil | ||
| } | ||
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| break | ||
| } | ||
| } | ||
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| return 0, ErrPIDNotFound | ||
| } | ||
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| func Pkill(name string) error { | ||
| c := Cdr{} | ||
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| pid, err := Pidof(name, c) | ||
| if err != nil { | ||
| if errors.Is(err, ErrPIDNotFound) { | ||
| log.Debug("looks like the process is not running") | ||
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| return nil | ||
| } | ||
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| return fmt.Errorf("could not get pid: %w", err) | ||
| } | ||
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| if err := syscall.Kill(pid, 9); err != nil { | ||
| return fmt.Errorf("could not kill process: %w", err) | ||
| } | ||
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| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,75 @@ | ||
| // nolint:gochecknoglobals,paralleltest,goerr113 | ||
| package pidof_test | ||
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| import ( | ||
| "embed" | ||
| "fmt" | ||
| "testing" | ||
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| "github.com/stretchr/testify/assert" | ||
| "go.xsfx.dev/wg-quicker/tools/pidof" | ||
| ) | ||
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| //go:embed testdata/* | ||
| var testdata embed.FS | ||
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| func TestPidof(t *testing.T) { | ||
| assert := assert.New(t) | ||
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| tables := []struct { | ||
| name string | ||
| data string | ||
| pid int | ||
| err error | ||
| }{ | ||
| { | ||
| "/home/linuxbrew/.linuxbrew/bin/tmux new-session -t local", | ||
| "psa_ubuntu_1.txt", | ||
| 20814, | ||
| nil, | ||
| }, | ||
| { | ||
| "/root/.byteexec/wireguard-go w1nd50r", | ||
| "psa_alpine_1.txt", | ||
| 2360, | ||
| nil, | ||
| }, | ||
| { | ||
| ".byteexec/wireguard-go w1nd50r", | ||
| "psa_alpine_1.txt", | ||
| 2360, | ||
| nil, | ||
| }, | ||
| { | ||
| "/root/.byteexec/wireguard-go w2nd50r", | ||
| "psa_alpine_1.txt", | ||
| 0, | ||
| fmt.Errorf("could not find pid"), | ||
| }, | ||
| { | ||
| "/root/.byteexec/wireguard-go w1nd50r", | ||
| "psa_alpine_2.txt", | ||
| 2501, | ||
| nil, | ||
| }, | ||
| } | ||
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| for _, table := range tables { | ||
| out, err := testdata.ReadFile("testdata/" + table.data) | ||
| assert.NoError(err) | ||
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| mock := new(pidof.MockCommander) | ||
| mock.On("Output", fmt.Sprintf("ps a|grep '%s'", table.name)).Return(out, table.err) | ||
| pid, err := pidof.Pidof(table.name, mock) | ||
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| if table.err != nil { | ||
| assert.Error(table.err, err) | ||
| } else { | ||
| assert.NoError(err) | ||
| } | ||
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| assert.Equal(table.pid, pid) | ||
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| mock.AssertExpectations(t) | ||
| } | ||
| } |
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