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349 lines
9.1 KiB
Go
349 lines
9.1 KiB
Go
2 years ago
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// +build linux darwin
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package staros
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import (
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"bytes"
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"errors"
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"strconv"
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"strings"
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"syscall"
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"time"
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)
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//FindProcessByName 通过进程名来查询应用信息
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func FindProcessByName(name string) (datas []Process, err error) {
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return FindProcess(func(in Process) bool {
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if name == in.Name {
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return true
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}
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return false
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})
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}
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// FindProcess 通过进程信息来查询应用信息
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func FindProcess(compare func(Process) bool) (datas []Process, err error) {
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var name, main string
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var mainb []byte
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var netErr error
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var netInfo []NetConn
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paths, err := ioutil.ReadDir("/proc")
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if err != nil {
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return
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}
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netInfo, netErr = NetConnections(false, "")
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appendNetInfo := func(p *Process) {
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if netErr != nil {
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p.netErr = netErr
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return
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}
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fds, err := ioutil.ReadDir("/proc/" + strconv.Itoa(int(p.Pid)) + "/fd")
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if err != nil && Exists("/proc/"+strconv.Itoa(int(p.Pid))+"/fd") {
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p.netErr = err
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return
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}
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for _, fd := range fds {
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socket, err := os.Readlink("/proc/" + strconv.Itoa(int(p.Pid)) + "/fd/" + fd.Name())
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if err != nil {
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p.netErr = err
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return
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}
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start := strings.Index(socket, "[")
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if start < 0 {
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continue
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}
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sid := socket[start+1 : len(socket)-1]
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for _, v := range netInfo {
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if v.Inode == sid {
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v.Pid = p.Pid
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v.Process = p
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p.netConn = append(p.netConn, v)
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}
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}
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}
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}
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for _, v := range paths {
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if v.IsDir() && Exists("/proc/"+v.Name()+"/comm") {
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name, err = readAsString("/proc/" + v.Name() + "/comm")
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if err != nil {
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continue
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}
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var tmp Process
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tmp.LocalPath, err = os.Readlink("/proc/" + v.Name() + "/exe")
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tmp.Path = tmp.LocalPath
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tmp.LocalPath = filepath.Dir(tmp.LocalPath)
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tmp.ExecPath, err = os.Readlink("/proc/" + v.Name() + "/cwd")
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tmp.Name = strings.TrimSpace(name)
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main, err = readAsString("/proc/" + v.Name() + "/status")
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if err != nil {
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tmp.Err = err
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if compare(tmp) {
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appendNetInfo(&tmp)
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datas = append(datas, tmp)
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continue
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}
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} else {
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data := splitBy(main, ":")
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tmp.Pid, _ = strconv.ParseInt(data["Pid"], 10, 64)
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tmp.PPid, _ = strconv.ParseInt(data["PPid"], 10, 64)
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tmp.TPid, _ = strconv.ParseInt(data["TracerPid"], 10, 64)
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uids := splitBySpace(data["Uid"])
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gids := splitBySpace(data["Gid"])
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tmp.RUID, _ = strconv.Atoi(uids[0])
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tmp.EUID, _ = strconv.Atoi(uids[1])
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tmp.RGID, _ = strconv.Atoi(gids[0])
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tmp.EGID, _ = strconv.Atoi(gids[1])
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tmp.VmPeak, _ = strconv.ParseInt(splitBySpace(data["VmPeak"])[0], 10, 64)
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tmp.VmSize, _ = strconv.ParseInt(splitBySpace(data["VmSize"])[0], 10, 64)
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tmp.VmHWM, _ = strconv.ParseInt(splitBySpace(data["VmHWM"])[0], 10, 64)
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tmp.VmRSS, _ = strconv.ParseInt(splitBySpace(data["VmRSS"])[0], 10, 64)
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tmp.VmLck, _ = strconv.ParseInt(splitBySpace(data["VmLck"])[0], 10, 64)
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tmp.VmData, _ = strconv.ParseInt(splitBySpace(data["VmData"])[0], 10, 64)
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tmp.VmLck *= 1024
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tmp.VmData *= 1024
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tmp.VmPeak *= 1024
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tmp.VmSize *= 1024
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tmp.VmHWM *= 1024
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tmp.VmRSS *= 1024
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}
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mainb, err = ioutil.ReadFile("/proc/" + v.Name() + "/cmdline")
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if err != nil {
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tmp.Err = err
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if compare(tmp) {
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appendNetInfo(&tmp)
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datas = append(datas, tmp)
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continue
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}
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} else {
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args := bytes.Split(mainb, []byte{0})
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for _, v := range args {
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tmp.Args = append(tmp.Args, string(v))
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}
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}
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mainb, err = ioutil.ReadFile("/proc/" + v.Name() + "/environ")
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if err != nil {
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tmp.Err = err
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if compare(tmp) {
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appendNetInfo(&tmp)
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datas = append(datas, tmp)
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continue
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}
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} else {
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args := bytes.Split(mainb, []byte{0})
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for _, v := range args {
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tmp.Env = append(tmp.Env, string(v))
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}
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}
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main, err = readAsString("/proc/" + v.Name() + "/stat")
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if err != nil {
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tmp.Err = err
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if compare(tmp) {
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appendNetInfo(&tmp)
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datas = append(datas, tmp)
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continue
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}
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} else {
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times := splitBySpace(main)
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uptime, _ := strconv.ParseInt(strings.TrimSpace(times[21]), 10, 64)
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tmp.Uptime = time.Unix(StartTime().Unix()+uptime/100, int64((float64(uptime)/100-float64(uptime/100))*1000000000))
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}
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if compare(tmp) {
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appendNetInfo(&tmp)
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datas = append(datas, tmp)
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}
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}
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}
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return
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}
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// FindProcessByPid 通过Pid来查询应用信息
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func FindProcessByPid(pid int64) (datas Process, err error) {
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var name, main string
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var mainb []byte
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if !Exists("/proc/" + fmt.Sprint(pid) + "/comm") {
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err = errors.New("Not Found")
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return
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}
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netInfo, netErr := NetConnections(false, "")
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appendNetInfo := func(p *Process) {
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if netErr != nil {
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p.netErr = netErr
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return
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}
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fds, err := ioutil.ReadDir("/proc/" + strconv.Itoa(int(p.Pid)) + "/fd")
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if err != nil && Exists("/proc/"+strconv.Itoa(int(p.Pid))+"/fd") {
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p.netErr = err
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return
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}
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for _, fd := range fds {
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socket, err := os.Readlink("/proc/" + strconv.Itoa(int(p.Pid)) + "/fd/" + fd.Name())
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if err != nil {
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p.netErr = err
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return
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}
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start := strings.Index(socket, "[")
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if start < 0 {
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continue
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}
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sid := socket[start+1 : len(socket)-1]
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for _, v := range netInfo {
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if v.Inode == sid {
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v.Pid = p.Pid
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v.Process = p
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p.netConn = append(p.netConn, v)
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}
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}
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}
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}
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name, err = readAsString("/proc/" + fmt.Sprint(pid) + "/comm")
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if err != nil {
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return
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}
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main, err = readAsString("/proc/" + fmt.Sprint(pid) + "/status")
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if err != nil {
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return
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}
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data := splitBy(main, ":")
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datas.Name = strings.TrimSpace(name)
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datas.Pid, _ = strconv.ParseInt(data["Pid"], 10, 64)
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datas.PPid, _ = strconv.ParseInt(data["PPid"], 10, 64)
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datas.TPid, _ = strconv.ParseInt(data["TracerPid"], 10, 64)
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uids := splitBySpace(data["Uid"])
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gids := splitBySpace(data["Gid"])
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datas.RUID, _ = strconv.Atoi(uids[0])
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datas.EUID, _ = strconv.Atoi(uids[1])
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datas.RGID, _ = strconv.Atoi(gids[0])
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datas.EGID, _ = strconv.Atoi(gids[1])
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datas.VmPeak, _ = strconv.ParseInt(splitBySpace(data["VmPeak"])[0], 10, 64)
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datas.VmSize, _ = strconv.ParseInt(splitBySpace(data["VmSize"])[0], 10, 64)
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datas.VmHWM, _ = strconv.ParseInt(splitBySpace(data["VmHWM"])[0], 10, 64)
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datas.VmRSS, _ = strconv.ParseInt(splitBySpace(data["VmRSS"])[0], 10, 64)
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datas.VmLck, _ = strconv.ParseInt(splitBySpace(data["VmLck"])[0], 10, 64)
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datas.VmData, _ = strconv.ParseInt(splitBySpace(data["VmData"])[0], 10, 64)
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datas.VmLck *= 1024
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datas.VmData *= 1024
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datas.VmPeak *= 1024
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datas.VmSize *= 1024
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datas.VmHWM *= 1024
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datas.VmRSS *= 1024
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appendNetInfo(&datas)
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mainb, err = ioutil.ReadFile("/proc/" + fmt.Sprint(pid) + "/cmdline")
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if err != nil {
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datas.Err = err
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err = nil
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} else {
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args := bytes.Split(mainb, []byte{0})
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for _, v := range args {
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datas.Args = append(datas.Args, string(v))
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}
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}
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mainb, err = ioutil.ReadFile("/proc/" + fmt.Sprint(pid) + "/environ")
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if err != nil {
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datas.Err = err
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err = nil
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} else {
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args := bytes.Split(mainb, []byte{0})
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for _, v := range args {
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datas.Env = append(datas.Env, string(v))
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}
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}
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datas.LocalPath, err = os.Readlink("/proc/" + fmt.Sprint(pid) + "/exe")
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datas.Path = datas.LocalPath
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datas.LocalPath = filepath.Dir(datas.LocalPath)
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datas.ExecPath, err = os.Readlink("/proc/" + fmt.Sprint(pid) + "/cwd")
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main, err = readAsString("/proc/" + fmt.Sprint(pid) + "/stat")
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if err != nil {
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return
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}
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times := splitBySpace(main)
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uptime, _ := strconv.ParseInt(strings.TrimSpace(times[21]), 10, 64)
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datas.Uptime = time.Unix(StartTime().Unix()+uptime/100, int64((float64(uptime)/100-float64(uptime/100))*1000000000))
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return
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}
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func Daemon(path string, args ...string) (int, error) {
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cmd := exec.Command(path, args...)
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cmd.SysProcAttr = &syscall.SysProcAttr{
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Setsid: true,
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}
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if err := cmd.Start(); err != nil {
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return -1, err
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}
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pid := cmd.Process.Pid
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err := cmd.Process.Release()
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return pid, err
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}
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func DaemonWithUser(uid, gid uint32, groups []uint32, path string, args ...string) (int, error) {
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cmd := exec.Command(path, args...)
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cmd.SysProcAttr = &syscall.SysProcAttr{
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Credential: &syscall.Credential{
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Uid: uid,
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Gid: gid,
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Groups: groups,
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},
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Setsid: true,
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}
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if err := cmd.Start(); err != nil {
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return -1, err
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}
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pid := cmd.Process.Pid
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err := cmd.Process.Release()
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return pid, err
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}
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func (starcli *StarCmd) SetRunUser(uid, gid uint32, groups []uint32) {
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starcli.CMD.SysProcAttr = &syscall.SysProcAttr{
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Credential: &syscall.Credential{
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Uid: uid,
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Gid: gid,
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Groups: groups,
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},
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Setsid: true,
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}
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}
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func (starcli *StarCmd) Release() error {
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if starcli.CMD.SysProcAttr == nil {
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starcli.CMD.SysProcAttr = &syscall.SysProcAttr{
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Setsid: true,
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}
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} else {
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if !starcli.CMD.SysProcAttr.Setsid {
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starcli.CMD.SysProcAttr.Setsid = true
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}
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}
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if !starcli.IsRunning() {
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if err := starcli.CMD.Start(); err != nil {
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return err
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}
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}
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time.Sleep(time.Millisecond * 10)
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return starcli.CMD.Process.Release()
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}
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func (starcli *StarCmd) SetKeepCaps() error {
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_, _, err := syscall.RawSyscall(157 /*SYS PRCTL */, 0x8 /*PR SET KEEPCAPS*/, 1, 0)
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if 0 != err {
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return err
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}
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return nil
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}
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func SetKeepCaps() error {
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_, _, err := syscall.RawSyscall(157 /*SYS PRCTL */, 0x8 /*PR SET KEEPCAPS*/, 1, 0)
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if 0 != err {
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return err
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}
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return nil
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}
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