func listLoadedLibraries(p process.Process) (libraries []string, harderror error, softerrors []error) {
mapsFile, harderror := os.Open(common.MapsFilePathFromPid(p.Pid()))
if harderror != nil {
return
}
defer mapsFile.Close()
scanner := bufio.NewScanner(mapsFile)
processName, harderror, softerrors := p.Name()
if harderror != nil {
return
}
libs := make([]string, 0, 10)
for scanner.Scan() {
line := scanner.Text()
items := common.SplitMapsFileEntry(line)
if len(items) != 6 {
return libs, fmt.Errorf("Unrecognised maps line: %s", line), softerrors
}
path := items[5]
if path == processName {
continue
}
if path == "/dev/zero" || path == "/dev/zero (deleted)" {
continue
}
if path == "" {
continue
}
if path[0] == '[' {
continue
}
if inSlice(path, libs) {
continue
}
libs = append(libs, path)
}
return libs, nil, nil
}
// evaluateProcess takes a single process and applies searches to it. All searches are evaluated. The `name` and `library`
// checks are run first, and if needed, the memory of the process is read to run the checks on `contents` and `bytes`.
// The logic is optimized to only read the process memory once and apply all the checks to it.
func (r Runner) evaluateProcess(proc process.Process) (err error) {
if !debug {
defer func() {
if e := recover(); e != nil {
err = fmt.Errorf("evaluateProcess() -> %v", e)
}
}()
}
procname, err, serr := proc.Name()
if err != nil {
return
}
for _, err = range serr {
stats.Failures = append(stats.Failures, err.Error())
if debug {
fmt.Printf("evaluateProcess: soft error -> %v\n", err)
}
}
if debug {
fmt.Printf("evaluateProcess: evaluating proc %s\n", procname)
}
// first pass: apply all name & library checks against the current process
for label, search := range r.Parameters.Searches {
if !search.isactive {
goto skip
}
if !search.checkName(proc, procname) && search.Options.MatchAll {
if debug {
fmt.Printf("evaluateProcess: proc %s does not match the names of search %s and matchall is set\n",
procname, label)
}
search.deactivate()
goto skip
}
if !search.checkLibraries(proc, procname) && search.Options.MatchAll {
if debug {
fmt.Printf("evaluateProcess: proc %s does not match the libraries of search %s and matchall is set\n",
procname, label)
}
search.deactivate()
goto skip
}
skip:
r.Parameters.Searches[label] = search
}
// second pass: walk the memory of the process and apply contents regexes and bytes searches
return r.walkProcMemory(proc, procname)
}
func listLoadedLibraries(p process.Process) (libraries []string, harderror error, softerrors []error) {
var ptr uintptr
var sizeT C.size_t
clibs := (***C.char)(C.malloc(C.size_t(unsafe.Sizeof(ptr))))
count := (*C.size_t)(C.malloc(C.size_t(unsafe.Sizeof(sizeT))))
defer C.free_loaded_libraries_list(*clibs, *count)
defer C.free(unsafe.Pointer(clibs))
defer C.free(unsafe.Pointer(count))
response := C.list_loaded_libraries((C.process_handle_t)(p.Handle()), clibs, count)
harderror, softerrors = cresponse.GetResponsesErrors(unsafe.Pointer(response))
C.response_free(response)
if harderror != nil {
return
}
libraries = make([]string, 0, *count)
clibsSlice := *(*[]*C.char)(unsafe.Pointer(
&reflect.SliceHeader{
Data: uintptr(unsafe.Pointer(*clibs)),
Len: int(*count),
Cap: int(*count)}))
processName, harderror, softs := p.Name()
if harderror != nil {
return
}
softerrors = append(softerrors, softs...)
for i, _ := range clibsSlice {
if clibsSlice[i] == nil {
continue
}
str := C.GoString(clibsSlice[i])
if str == processName {
continue
}
libraries = append(libraries, str)
}
return
}
