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cloudpods/pkg/hostman/diskutils/fsutils/fsutils.go
2021-10-14 14:32:19 +08:00

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// Copyright 2019 Yunion
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package fsutils
import (
"fmt"
"io"
"io/ioutil"
"path"
"regexp"
"strconv"
"strings"
"github.com/pkg/errors"
"yunion.io/x/log"
"yunion.io/x/pkg/utils"
"yunion.io/x/onecloud/pkg/hostman/guestfs/kvmpart"
"yunion.io/x/onecloud/pkg/util/fileutils2"
"yunion.io/x/onecloud/pkg/util/procutils"
"yunion.io/x/onecloud/pkg/util/regutils2"
)
func IsPartedFsString(fsstr string) bool {
return utils.IsInStringArray(strings.ToLower(fsstr), []string{
"ext2", "ext3", "ext4", "xfs",
"fat16", "fat32",
"hfs", "hfs+", "hfsx",
"linux-swap", "linux-swap(v1)",
"ntfs", "reiserfs", "ufs", "btrfs",
})
}
func ParseDiskPartition(dev string, lines []byte) ([][]string, string) {
var (
parts = [][]string{}
label string
labelPartten = regexp.MustCompile(`Partition Table:\s+(?P<label>\w+)`)
partten = regexp.MustCompile(`(?P<idx>\d+)\s+(?P<start>\d+)s\s+(?P<end>\d+)s\s+(?P<count>\d+)s`)
)
for _, line := range strings.Split(string(lines), "\n") {
if len(label) == 0 {
m := regutils2.GetParams(labelPartten, line)
if len(m) > 0 {
label = m["label"]
}
}
m := regutils2.GetParams(partten, line)
if len(m) > 0 {
var (
idx = m["idx"]
start = m["start"]
end = m["end"]
count = m["count"]
devname = dev
)
if '0' <= dev[len(dev)-1] && dev[len(dev)-1] <= '9' {
devname += "p"
}
devname += idx
data := regexp.MustCompile(`\s+`).Split(strings.TrimSpace(line), -1)
var disktype, fs, flag string
var offset = 0
if len(data) > 4 {
if label == "msdos" {
disktype = data[4]
if len(data) > 5 && IsPartedFsString(data[5]) {
fs = data[5]
offset += 1
}
if len(data) > 5+offset {
flag = data[5+offset]
}
} else if label == "gpt" {
if IsPartedFsString(data[4]) {
fs = data[4]
offset += 1
}
if len(data) > 4+offset {
disktype = data[4+offset]
}
if len(data) > 4+offset+1 {
flag = data[4+offset+1]
}
}
}
var bootable = ""
if len(flag) > 0 && strings.Index(flag, "boot") >= 0 {
bootable = "true"
}
parts = append(parts, []string{idx, bootable, start, end, count, disktype, fs,
devname})
}
}
return parts, label
}
func GetDevSector512Count(dev string) int {
sizeStr, _ := fileutils2.FileGetContents(fmt.Sprintf("/sys/block/%s/size", dev))
sizeStr = strings.Trim(sizeStr, "\n")
size, _ := strconv.Atoi(sizeStr)
return size
}
func ResizeDiskFs(diskPath string, sizeMb int) error {
var cmds = []string{"parted", "-a", "none", "-s", diskPath, "--", "unit", "s", "print"}
lines, err := procutils.NewCommand(cmds[0], cmds[1:]...).Output()
if err != nil {
hasPartTable := func() bool {
for _, line := range strings.Split(string(lines), "\n") {
if strings.Contains(line, "Partition Table") {
return true
}
}
return false
}
if hasPartTable() {
return nil
}
log.Errorf("resize disk fs fail, output: %s , error: %s", lines, err)
return err
}
parts, label := ParseDiskPartition(diskPath, lines)
log.Infof("Parts: %v label: %s", parts, label)
maxSector := GetDevSector512Count(path.Base(diskPath))
if label == "gpt" {
proc := procutils.NewCommand("gdisk", diskPath)
stdin, err := proc.StdinPipe()
if err != nil {
return err
}
defer stdin.Close()
outb, err := proc.StdoutPipe()
if err != nil {
return err
}
defer outb.Close()
errb, err := proc.StderrPipe()
if err != nil {
return err
}
defer errb.Close()
if err := proc.Start(); err != nil {
return err
}
for _, s := range []string{"r", "e", "Y", "w", "Y", "Y"} {
io.WriteString(stdin, fmt.Sprintf("%s\n", s))
}
stdoutPut, err := ioutil.ReadAll(outb)
if err != nil {
return err
}
stderrOutPut, err := ioutil.ReadAll(errb)
if err != nil {
return err
}
log.Infof("gdisk: %s %s", stdoutPut, stderrOutPut)
if err = proc.Wait(); err != nil {
if status, succ := proc.GetExitStatus(err); succ {
if status != 1 {
return err
}
} else {
return err
}
}
}
if len(parts) > 0 && (label == "gpt" ||
(label == "msdos" && parts[len(parts)-1][5] == "primary")) {
var (
part = parts[len(parts)-1]
end int
)
if sizeMb > 0 {
end = sizeMb * 1024 * 2
} else if label == "gpt" {
end = maxSector - 35
} else {
end = maxSector - 1
}
if label == "msdos" && end >= 4294967296 {
end = 4294967295
}
cmds = []string{"parted", "-a", "none", "-s", diskPath, "--",
"unit", "s", "rm", part[0], "mkpart", part[5]}
if len(part[6]) > 0 {
cmds = append(cmds, part[6])
}
cmds = append(cmds, part[2], fmt.Sprintf("%ds", end))
if len(part[1]) > 0 {
cmds = append(cmds, "set", part[0], "boot", "on")
}
log.Infof("resize disk partition: %s", cmds)
output, err := procutils.NewCommand(cmds[0], cmds[1:]...).Output()
if err != nil {
return errors.Wrapf(err, "parted failed %s", output)
}
if len(part[6]) > 0 {
err, _ := ResizePartitionFs(part[7], part[6], false)
if err != nil {
return err
}
}
}
return nil
}
func ResizePartitionFs(fpath, fs string, raiseError bool) (error, bool) {
if len(fs) == 0 {
return nil, false
}
var (
cmds = [][]string{}
uuids, _ = fileutils2.GetDevUuid(fpath)
)
if strings.HasPrefix(fs, "linux-swap") {
if v, ok := uuids["UUID"]; ok {
cmds = [][]string{{"mkswap", "-U", v, fpath}}
} else {
cmds = [][]string{{"mkswap", fpath}}
}
} else if strings.HasPrefix(fs, "ext") {
if !FsckExtFs(fpath) {
if raiseError {
return fmt.Errorf("Failed to fsck ext fs %s", fpath), false
} else {
return nil, false
}
}
cmds = [][]string{{"resize2fs", fpath}}
} else if fs == "xfs" {
var tmpPoint = fmt.Sprintf("/tmp/%s", strings.Replace(fpath, "/", "_", -1))
if _, err := procutils.NewCommand("mountpoint", tmpPoint).Output(); err == nil {
output, err := procutils.NewCommand("umount", "-f", tmpPoint).Output()
if err != nil {
log.Errorf("failed umount %s: %s, %s", tmpPoint, err, output)
return err, false
}
}
FsckXfsFs(fpath)
uuid := uuids["UUID"]
if len(uuid) > 0 {
kvmpart.LockXfsPartition(uuid)
defer kvmpart.UnlockXfsPartition(uuid)
}
cmds = [][]string{{"mkdir", "-p", tmpPoint},
{"mount", fpath, tmpPoint},
{"sleep", "2"},
{"xfs_growfs", tmpPoint},
{"sleep", "2"},
{"umount", tmpPoint},
{"sleep", "2"},
{"rm", "-fr", tmpPoint}}
} else if fs == "ntfs" {
// the following cmds may cause disk damage on Windows 10 with new version of NTFS
// comment out the following codes only impact Windows 2003
// as windows 2003 deprecated, so choose to sacrifies windows 2003
// cmds = [][]string{{"ntfsresize", "-c", fpath}, {"ntfsresize", "-P", "-f", fpath}}
}
if len(cmds) > 0 {
for _, cmd := range cmds {
output, err := procutils.NewCommand(cmd[0], cmd[1:]...).Output()
if err != nil {
log.Errorf("resize partition: %s, %s", err, output)
if raiseError {
return err, false
} else {
return nil, false
}
}
}
}
return nil, true
}
func FsckExtFs(fpath string) bool {
log.Debugf("Exec command: %v", []string{"e2fsck", "-f", "-p", fpath})
cmd := procutils.NewCommand("e2fsck", "-f", "-p", fpath)
if err := cmd.Start(); err != nil {
log.Errorf("e2fsck start failed: %s", err)
return false
} else {
err = cmd.Wait()
if err != nil {
if status, ok := cmd.GetExitStatus(err); ok {
if status < 4 {
return true
}
}
log.Errorln(err)
return false
} else {
return true
}
}
}
// https://bugs.launchpad.net/ubuntu/+source/xfsprogs/+bug/1718244
// use xfs_repair -n instead
func FsckXfsFs(fpath string) bool {
if output, err := procutils.NewCommand("xfs_check", fpath).Output(); err != nil {
log.Errorf("xfs_check failed: %s, %s, try xfs_repair -n <dev> instead", err, output)
if output, err := procutils.NewCommand("xfs_repair", "-n", fpath).Output(); err != nil {
log.Errorf("xfs_repair -n dev failed: %s, %s", err, output)
// repair the xfs
procutils.NewCommand("xfs_repair", fpath).Output()
return false
}
}
return true
}
func Mkpartition(imagePath, fsFormat string) error {
var (
parted = "parted"
labelType = "gpt"
diskType = fileutils2.FsFormatToDiskType(fsFormat)
)
if len(diskType) == 0 {
return fmt.Errorf("Unknown fsFormat %s", fsFormat)
}
// 创建一个新磁盘分区表类型, ex: mbr gpt msdos ...
output, err := procutils.NewCommand(parted, "-s", imagePath, "mklabel", labelType).Output()
if err != nil {
log.Errorf("mklabel %s %s error: %s, %s", imagePath, fsFormat, err, output)
return errors.Wrapf(err, "parted mklabel failed: %s", output)
}
// 创建一个part-type类型的分区, part-type可以是"primary", "logical", "extended"
// 如果指定fs-type(即diskType)则在创建分区的同时进行格式化
output, err = procutils.NewCommand(parted, "-s", "-a", "cylinder",
imagePath, "mkpart", "primary", diskType, "0", "100%").Output()
if err != nil {
log.Errorf("mkpart %s %s error: %s, %s", imagePath, fsFormat, err, output)
return errors.Wrapf(err, "parted mkpart failed: %s", output)
}
return nil
}
func FormatPartition(path, fs, uuid string) error {
var cmd, cmdUuid []string
switch {
case fs == "swap":
cmd = []string{"mkswap", "-U", uuid}
case fs == "ext2":
cmd = []string{"mkfs.ext2"}
cmdUuid = []string{"tune2fs", "-U", uuid}
case fs == "ext3":
cmd = []string{"mkfs.ext3"}
cmdUuid = []string{"tune2fs", "-U", uuid}
case fs == "ext4":
cmd = []string{"mkfs.ext4", "-O", "^64bit", "-E", "lazy_itable_init=1", "-T", "largefile"}
cmdUuid = []string{"tune2fs", "-U", uuid}
case fs == "ext4dev":
cmd = []string{"mkfs.ext4dev", "-E", "lazy_itable_init=1"}
cmdUuid = []string{"tune2fs", "-U", uuid}
case strings.HasPrefix(fs, "fat"):
cmd = []string{"mkfs.msdos"}
// #case fs == "ntfs":
// # cmd = []string{"/sbin/mkfs.ntfs"}
case fs == "xfs":
cmd = []string{"mkfs.xfs", "-f", "-m", "crc=0", "-i", "projid32bit=0", "-n", "ftype=0"}
cmdUuid = []string{"xfs_admin", "-U", uuid}
}
if len(cmd) > 0 {
var cmds = cmd
cmds = append(cmds, path)
if output, err := procutils.NewCommand(cmds[0], cmds[1:]...).Output(); err != nil {
log.Errorf("%v failed: %s, %s", cmds, err, output)
return errors.Wrapf(err, "format partition failed %s", output)
}
if len(cmdUuid) > 0 {
cmds = cmdUuid
cmds = append(cmds, path)
if output, err := procutils.NewCommand(cmds[0], cmds[1:]...).Output(); err != nil {
log.Errorf("%v failed: %s, %s", cmds, err, output)
return errors.Wrapf(err, "format partition set uuid failed %s", output)
}
}
return nil
}
return fmt.Errorf("Unknown fs %s", fs)
}