Adding upstream version 2.52.6.
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
parent
a960158181
commit
6d002e9543
GPG key ID:
FBB4F0E80A80222F
441 changed files with 95392 additions and 0 deletions
269
internal/gopsutil/common/common_linux.go
Normal file
269
internal/gopsutil/common/common_linux.go
Normal file
|
|
@ -0,0 +1,269 @@
|
|||
//go:build linux
|
||||
|
||||
package common
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"log"
|
||||
"os"
|
||||
"os/exec"
|
||||
"path/filepath"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
func DoSysctrl(mib string) ([]string, error) {
|
||||
sysctl, err := exec.LookPath("sysctl")
|
||||
if err != nil {
|
||||
return []string{}, err
|
||||
}
|
||||
cmd := exec.Command(sysctl, "-n", mib)
|
||||
cmd.Env = getSysctrlEnv(os.Environ())
|
||||
out, err := cmd.Output()
|
||||
if err != nil {
|
||||
return []string{}, err
|
||||
}
|
||||
v := strings.Replace(string(out), "{ ", "", 1)
|
||||
v = strings.Replace(string(v), " }", "", 1)
|
||||
values := strings.Fields(string(v))
|
||||
|
||||
return values, nil
|
||||
}
|
||||
|
||||
func NumProcs() (uint64, error) {
|
||||
f, err := os.Open(HostProc())
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
defer func(f *os.File) {
|
||||
err := f.Close()
|
||||
if err != nil {
|
||||
log.Fatalln(err)
|
||||
}
|
||||
}(f)
|
||||
|
||||
list, err := f.Readdirnames(-1)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
var cnt uint64
|
||||
|
||||
for _, v := range list {
|
||||
if _, err = strconv.ParseUint(v, 10, 64); err == nil {
|
||||
cnt++
|
||||
}
|
||||
}
|
||||
|
||||
return cnt, nil
|
||||
}
|
||||
|
||||
func BootTimeWithContext(ctx context.Context) (uint64, error) {
|
||||
system, role, err := Virtualization()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
statFile := "stat"
|
||||
if system == "lxc" && role == "guest" {
|
||||
// if lxc, /proc/uptime is used.
|
||||
statFile = "uptime"
|
||||
} else if system == "docker" && role == "guest" {
|
||||
// also docker, guest
|
||||
statFile = "uptime"
|
||||
}
|
||||
|
||||
filename := HostProc(statFile)
|
||||
lines, err := ReadLines(filename)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
if statFile == "stat" {
|
||||
for _, line := range lines {
|
||||
if strings.HasPrefix(line, "btime") {
|
||||
f := strings.Fields(line)
|
||||
if len(f) != 2 {
|
||||
return 0, fmt.Errorf("wrong btime format")
|
||||
}
|
||||
b, err := strconv.ParseInt(f[1], 10, 64)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
t := uint64(b)
|
||||
return t, nil
|
||||
}
|
||||
}
|
||||
} else if statFile == "uptime" {
|
||||
if len(lines) != 1 {
|
||||
return 0, fmt.Errorf("wrong uptime format")
|
||||
}
|
||||
f := strings.Fields(lines[0])
|
||||
b, err := strconv.ParseFloat(f[0], 64)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
t := uint64(time.Now().Unix()) - uint64(b)
|
||||
return t, nil
|
||||
}
|
||||
|
||||
return 0, fmt.Errorf("could not find btime")
|
||||
}
|
||||
|
||||
func Virtualization() (string, string, error) {
|
||||
return VirtualizationWithContext(context.Background())
|
||||
}
|
||||
|
||||
func VirtualizationWithContext(ctx context.Context) (string, string, error) {
|
||||
var system string
|
||||
var role string
|
||||
|
||||
filename := HostProc("xen")
|
||||
if PathExists(filename) {
|
||||
system = "xen"
|
||||
role = "guest" // assume guest
|
||||
|
||||
if PathExists(filepath.Join(filename, "capabilities")) {
|
||||
contents, err := ReadLines(filepath.Join(filename, "capabilities"))
|
||||
if err == nil {
|
||||
if StringsContains(contents, "control_d") {
|
||||
role = "host"
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
filename = HostProc("modules")
|
||||
if PathExists(filename) {
|
||||
contents, err := ReadLines(filename)
|
||||
if err == nil {
|
||||
if StringsContains(contents, "kvm") {
|
||||
system = "kvm"
|
||||
role = "host"
|
||||
} else if StringsContains(contents, "vboxdrv") {
|
||||
system = "vbox"
|
||||
role = "host"
|
||||
} else if StringsContains(contents, "vboxguest") {
|
||||
system = "vbox"
|
||||
role = "guest"
|
||||
} else if StringsContains(contents, "vmware") {
|
||||
system = "vmware"
|
||||
role = "guest"
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
filename = HostProc("cpuinfo")
|
||||
if PathExists(filename) {
|
||||
contents, err := ReadLines(filename)
|
||||
if err == nil {
|
||||
if StringsContains(contents, "QEMU Virtual CPU") ||
|
||||
StringsContains(contents, "Common KVM processor") ||
|
||||
StringsContains(contents, "Common 32-bit KVM processor") {
|
||||
system = "kvm"
|
||||
role = "guest"
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
filename = HostProc("bus/pci/devices")
|
||||
if PathExists(filename) {
|
||||
contents, err := ReadLines(filename)
|
||||
if err == nil {
|
||||
if StringsContains(contents, "virtio-pci") {
|
||||
role = "guest"
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
filename = HostProc()
|
||||
if PathExists(filepath.Join(filename, "bc", "0")) {
|
||||
system = "openvz"
|
||||
role = "host"
|
||||
} else if PathExists(filepath.Join(filename, "vz")) {
|
||||
system = "openvz"
|
||||
role = "guest"
|
||||
}
|
||||
|
||||
// not use dmidecode because it requires root
|
||||
if PathExists(filepath.Join(filename, "self", "status")) {
|
||||
contents, err := ReadLines(filepath.Join(filename, "self", "status"))
|
||||
if err == nil {
|
||||
if StringsContains(contents, "s_context:") ||
|
||||
StringsContains(contents, "VxID:") {
|
||||
system = "linux-vserver"
|
||||
}
|
||||
// TODO: guest or host
|
||||
}
|
||||
}
|
||||
|
||||
if PathExists(filepath.Join(filename, "1", "environ")) {
|
||||
contents, err := ReadFile(filepath.Join(filename, "1", "environ"))
|
||||
|
||||
if err == nil {
|
||||
if strings.Contains(contents, "container=lxc") {
|
||||
system = "lxc"
|
||||
role = "guest"
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if PathExists(filepath.Join(filename, "self", "cgroup")) {
|
||||
contents, err := ReadLines(filepath.Join(filename, "self", "cgroup"))
|
||||
if err == nil {
|
||||
if StringsContains(contents, "lxc") {
|
||||
system = "lxc"
|
||||
role = "guest"
|
||||
} else if StringsContains(contents, "docker") {
|
||||
system = "docker"
|
||||
role = "guest"
|
||||
} else if StringsContains(contents, "machine-rkt") {
|
||||
system = "rkt"
|
||||
role = "guest"
|
||||
} else if PathExists("/usr/bin/lxc-version") {
|
||||
system = "lxc"
|
||||
role = "host"
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if PathExists(HostEtc("os-release")) {
|
||||
p, _, err := GetOSRelease()
|
||||
if err == nil && p == "coreos" {
|
||||
system = "rkt" // Is it true?
|
||||
role = "host"
|
||||
}
|
||||
}
|
||||
return system, role, nil
|
||||
}
|
||||
|
||||
func GetOSRelease() (platform, version string, err error) {
|
||||
contents, err := ReadLines(HostEtc("os-release"))
|
||||
if err != nil {
|
||||
return "", "", nil // return empty
|
||||
}
|
||||
for _, line := range contents {
|
||||
field := strings.Split(line, "=")
|
||||
if len(field) < 2 {
|
||||
continue
|
||||
}
|
||||
switch field[0] {
|
||||
case "ID": // use ID for lowercase
|
||||
platform = trimQuotes(field[1])
|
||||
case "VERSION":
|
||||
version = trimQuotes(field[1])
|
||||
}
|
||||
}
|
||||
return platform, version, nil
|
||||
}
|
||||
|
||||
// Remove quotes of the source string
|
||||
func trimQuotes(s string) string {
|
||||
if len(s) >= 2 {
|
||||
if s[0] == '"' && s[len(s)-1] == '"' {
|
||||
return s[1 : len(s)-1]
|
||||
}
|
||||
}
|
||||
return s
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue