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process: Add flag to control the export of the process cmdline (#2153)

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This commit is contained in:
Jan-Otto Kröpke
2025-08-03 20:09:03 +02:00
committed by GitHub
parent 6c2380bd04
commit 6253bf812d
2 changed files with 28 additions and 10 deletions
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33
internal/collector/process/process.go
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@@ -44,6 +44,7 @@ type Config struct {
ProcessInclude *regexp.Regexp `yaml:"include"`
ProcessExclude *regexp.Regexp `yaml:"exclude"`
EnableWorkerProcess bool `yaml:"iis"`
EnableCMDLine bool `yaml:"cmdline"`
CounterVersion uint8 `yaml:"counter-version"`
}
@@ -52,6 +53,7 @@ var ConfigDefaults = Config{
ProcessInclude: types.RegExpAny,
ProcessExclude: types.RegExpEmpty,
EnableWorkerProcess: false,
EnableCMDLine: true,
CounterVersion: 0,
}
@@ -131,6 +133,11 @@ func NewWithFlags(app *kingpin.Application) *Collector {
"Enable IIS collectWorker process name queries. May cause the collector to leak memory.",
).Default(strconv.FormatBool(c.config.EnableWorkerProcess)).BoolVar(&c.config.EnableWorkerProcess)
app.Flag(
"collector.process.cmdline",
"If enabled, the full cmdline is exposed to the windows_process_info metrics.",
).Default(strconv.FormatBool(c.config.EnableCMDLine)).BoolVar(&c.config.EnableCMDLine)
app.Flag(
"collector.process.counter-version",
"Version of the process collector to use. 1 for Process V1, 2 for Process V2. Defaults to 0 which will use the latest version available.",
@@ -415,19 +422,25 @@ func (c *Collector) getExtendedProcessInformation(hProcess windows.Handle) (stri
return "", 0, fmt.Errorf("failed to read process memory: %w", err)
}
cmdLineUTF16 := make([]uint16, processParameters.CommandLine.Length)
var cmdLine string
err = windows.ReadProcessMemory(hProcess,
uintptr(unsafe.Pointer(processParameters.CommandLine.Buffer)),
(*byte)(unsafe.Pointer(&cmdLineUTF16[0])),
uintptr(processParameters.CommandLine.Length),
nil,
)
if err != nil {
return "", processParameters.ProcessGroupId, fmt.Errorf("failed to read process memory: %w", err)
if c.config.EnableCMDLine {
cmdLineUTF16 := make([]uint16, processParameters.CommandLine.Length)
err = windows.ReadProcessMemory(hProcess,
uintptr(unsafe.Pointer(processParameters.CommandLine.Buffer)),
(*byte)(unsafe.Pointer(&cmdLineUTF16[0])),
uintptr(processParameters.CommandLine.Length),
nil,
)
if err != nil {
return "", processParameters.ProcessGroupId, fmt.Errorf("failed to read process memory: %w", err)
}
cmdLine = strings.TrimSpace(windows.UTF16ToString(cmdLineUTF16))
}
return strings.TrimSpace(windows.UTF16ToString(cmdLineUTF16)), processParameters.ProcessGroupId, nil
return cmdLine, processParameters.ProcessGroupId, nil
}
func (c *Collector) getProcessOwner(logger *slog.Logger, hProcess windows.Handle) (string, error) {