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libcontainer/userns: migrate to github.com/moby/sys/userns

Browse Source 
The userns package was moved to the moby/sys/userns module
at commit 3778ae603c706494fd1e2c2faf83b406e38d687d.

This patch deprecates the old location, and adds it as an alias
for the moby/sys/userns package.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2024-07-25 11:38:28 +02:00 committed by lfbzhm
parent 8bf5f0d441
commit 9b60a93cf3
20 changed files with 253 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
checkpoint.go
View File

@ -9,12 +9,13 @@ import (
"strconv"
criu "github.com/checkpoint-restore/go-criu/v6/rpc"
"github.com/opencontainers/runc/libcontainer"
"github.com/opencontainers/runc/libcontainer/userns"
"github.com/moby/sys/userns"
"github.com/opencontainers/runtime-spec/specs-go"
"github.com/sirupsen/logrus"
"github.com/urfave/cli"
"golang.org/x/sys/unix"
"github.com/opencontainers/runc/libcontainer"
)
var checkpointCommand = cli.Command{

3
go.mod
View File

@ -16,7 +16,8 @@ require (
github.com/docker/go-units v0.5.0
github.com/godbus/dbus/v5 v5.1.0
github.com/moby/sys/mountinfo v0.7.1
github.com/moby/sys/user v0.1.0
github.com/moby/sys/user v0.3.0
github.com/moby/sys/userns v0.1.0
github.com/mrunalp/fileutils v0.5.1
github.com/opencontainers/runtime-spec v1.2.0
github.com/opencontainers/selinux v1.11.0

6
go.sum
View File

@ -40,8 +40,10 @@ github.com/mdlayher/socket v0.4.1 h1:eM9y2/jlbs1M615oshPQOHZzj6R6wMT7bX5NPiQvn2U
github.com/mdlayher/socket v0.4.1/go.mod h1:cAqeGjoufqdxWkD7DkpyS+wcefOtmu5OQ8KuoJGIReA=
github.com/moby/sys/mountinfo v0.7.1 h1:/tTvQaSJRr2FshkhXiIpux6fQ2Zvc4j7tAhMTStAG2g=
github.com/moby/sys/mountinfo v0.7.1/go.mod h1:IJb6JQeOklcdMU9F5xQ8ZALD+CUr5VlGpwtX+VE0rpI=
github.com/moby/sys/user v0.1.0 h1:WmZ93f5Ux6het5iituh9x2zAG7NFY9Aqi49jjE1PaQg=
github.com/moby/sys/user v0.1.0/go.mod h1:fKJhFOnsCN6xZ5gSfbM6zaHGgDJMrqt9/reuj4T7MmU=
github.com/moby/sys/user v0.3.0 h1:9ni5DlcW5an3SvRSx4MouotOygvzaXbaSrc/wGDFWPo=
github.com/moby/sys/user v0.3.0/go.mod h1:bG+tYYYJgaMtRKgEmuueC0hJEAZWwtIbZTB+85uoHjs=
github.com/moby/sys/userns v0.1.0 h1:tVLXkFOxVu9A64/yh59slHVv9ahO9UIev4JZusOLG/g=
github.com/moby/sys/userns v0.1.0/go.mod h1:IHUYgu/kao6N8YZlp9Cf444ySSvCmDlmzUcYfDHOl28=
github.com/mrunalp/fileutils v0.5.1 h1:F+S7ZlNKnrwHfSwdlgNSkKo67ReVf8o9fel6C3dkm/Q=
github.com/mrunalp/fileutils v0.5.1/go.mod h1:M1WthSahJixYnrXQl/DFQuteStB1weuxD2QJNHXfbSQ=
github.com/opencontainers/runtime-spec v1.2.0 h1:z97+pHb3uELt/yiAWD691HNHQIF07bE7dzrbT927iTk=

2
libcontainer/cgroups/devices/v1.go
View File

@ -5,10 +5,10 @@ import (
"errors"
"reflect"
"github.com/moby/sys/userns"
"github.com/opencontainers/runc/libcontainer/cgroups"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/devices"
"github.com/opencontainers/runc/libcontainer/userns"
)
var testingSkipFinalCheck bool

3
libcontainer/cgroups/devices/v1_test.go
View File

@ -5,11 +5,12 @@ import (
"path"
"testing"
"github.com/moby/sys/userns"
"github.com/opencontainers/runc/libcontainer/cgroups"
"github.com/opencontainers/runc/libcontainer/cgroups/fscommon"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/devices"
"github.com/opencontainers/runc/libcontainer/userns"
)
func init() {

2
libcontainer/cgroups/devices/v2.go
View File

@ -3,11 +3,11 @@ package devices
import (
"fmt"
"github.com/moby/sys/userns"
"golang.org/x/sys/unix"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/devices"
"github.com/opencontainers/runc/libcontainer/userns"
)
func isRWM(perms devices.Permissions) bool {

3
libcontainer/cgroups/systemd/user.go
View File

@ -13,8 +13,7 @@ import (
systemdDbus "github.com/coreos/go-systemd/v22/dbus"
dbus "github.com/godbus/dbus/v5"
"github.com/opencontainers/runc/libcontainer/userns"
"github.com/moby/sys/userns"
)
// newUserSystemdDbus creates a connection for systemd user-instance.

2
libcontainer/cgroups/utils.go
View File

@ -12,7 +12,7 @@ import (
"sync"
"time"
"github.com/opencontainers/runc/libcontainer/userns"
"github.com/moby/sys/userns"
"github.com/sirupsen/logrus"
"golang.org/x/sys/unix"
)

2
libcontainer/rootfs_linux.go
View File

@ -14,6 +14,7 @@ import (
securejoin "github.com/cyphar/filepath-securejoin"
"github.com/moby/sys/mountinfo"
"github.com/moby/sys/userns"
"github.com/mrunalp/fileutils"
"github.com/opencontainers/runtime-spec/specs-go"
"github.com/opencontainers/selinux/go-selinux/label"
@ -24,7 +25,6 @@ import (
"github.com/opencontainers/runc/libcontainer/cgroups/fs2"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/devices"
"github.com/opencontainers/runc/libcontainer/userns"
"github.com/opencontainers/runc/libcontainer/utils"
)

7
libcontainer/userns/userns.go → libcontainer/userns/userns_deprecated.go
View File

@ -1,8 +1,13 @@
// Deprecated: use github.com/moby/sys/userns
package userns
import "github.com/moby/sys/userns"
// RunningInUserNS detects whether we are currently running in a Linux
// user namespace and memoizes the result. It returns false on non-Linux
// platforms.
//
// Deprecated: use [userns.RunningInUserNS].
func RunningInUserNS() bool {
return inUserNS()
return userns.RunningInUserNS()
}

34
libcontainer/userns/userns_linux_test.go
View File

@ -1,34 +0,0 @@
package userns
import "testing"
func TestUIDMapInUserNS(t *testing.T) {
cases := []struct {
s string
expected bool
}{
{
s: " 0 0 4294967295\n",
expected: false,
},
{
s: " 0 0 1\n",
expected: true,
},
{
s: " 0 1001 1\n 1 231072 65536\n",
expected: true,
},
{
// file exist but empty (the initial state when userns is created. see man 7 user_namespaces)
s: "",
expected: true,
},
}
for _, c := range cases {
actual := uidMapInUserNS(c.s)
if c.expected != actual {
t.Fatalf("expected %v, got %v for %q", c.expected, actual, c.s)
}
}
}

2
restore.go
View File

@ -3,7 +3,7 @@ package main
import (
"os"
"github.com/opencontainers/runc/libcontainer/userns"
"github.com/moby/sys/userns"
"github.com/sirupsen/logrus"
"github.com/urfave/cli"
)

5
rootless_linux.go
View File

@ -3,10 +3,11 @@ package main
import (
"os"
"github.com/opencontainers/runc/libcontainer/cgroups/systemd"
"github.com/opencontainers/runc/libcontainer/userns"
"github.com/moby/sys/userns"
"github.com/sirupsen/logrus"
"github.com/urfave/cli"
"github.com/opencontainers/runc/libcontainer/cgroups/systemd"
)
func shouldUseRootlessCgroupManager(context *cli.Context) (bool, error) {

1
vendor/github.com/moby/sys/user/user.go generated vendored
View File

@ -197,7 +197,6 @@ func ParseGroupFilter(r io.Reader, filter func(Group) bool) ([]Group, error) {
for {
var line []byte
line, isPrefix, err = rd.ReadLine()
if err != nil {
// We should return no error if EOF is reached
// without a match.

202
vendor/github.com/moby/sys/userns/LICENSE generated vendored Normal file
View File

@ -0,0 +1,202 @@
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16
vendor/github.com/moby/sys/userns/userns.go generated vendored Normal file
View File

@ -0,0 +1,16 @@
// Package userns provides utilities to detect whether we are currently running
// in a Linux user namespace.
//
// This code was migrated from [libcontainer/runc], which based its implementation
// on code from [lcx/incus].
//
// [libcontainer/runc]: https://github.com/opencontainers/runc/blob/3778ae603c706494fd1e2c2faf83b406e38d687d/libcontainer/userns/userns_linux.go#L12-L49
// [lcx/incus]: https://github.com/lxc/incus/blob/e45085dd42f826b3c8c3228e9733c0b6f998eafe/shared/util.go#L678-L700
package userns
// RunningInUserNS detects whether we are currently running in a Linux
// user namespace and memoizes the result. It returns false on non-Linux
// platforms.
func RunningInUserNS() bool {
return inUserNS()
}

6
libcontainer/userns/userns_linux.go → vendor/github.com/moby/sys/userns/userns_linux.go generated vendored
View File

@ -11,7 +11,11 @@ var inUserNS = sync.OnceValue(runningInUserNS)
// runningInUserNS detects whether we are currently running in a user namespace.
//
// Originally copied from https://github.com/lxc/incus/blob/e45085dd42f826b3c8c3228e9733c0b6f998eafe/shared/util.go#L678-L700.
// This code was migrated from [libcontainer/runc] and based on an implementation
// from [lcx/incus].
//
// [libcontainer/runc]: https://github.com/opencontainers/runc/blob/3778ae603c706494fd1e2c2faf83b406e38d687d/libcontainer/userns/userns_linux.go#L12-L49
// [lcx/incus]: https://github.com/lxc/incus/blob/e45085dd42f826b3c8c3228e9733c0b6f998eafe/shared/util.go#L678-L700
func runningInUserNS() bool {
file, err := os.Open("/proc/self/uid_map")
if err != nil {

0
libcontainer/userns/userns_linux_fuzzer.go → vendor/github.com/moby/sys/userns/userns_linux_fuzzer.go generated vendored
View File

0
libcontainer/userns/userns_unsupported.go → vendor/github.com/moby/sys/userns/userns_unsupported.go generated vendored
View File

5
vendor/modules.txt vendored
View File

@ -37,9 +37,12 @@ github.com/godbus/dbus/v5
# github.com/moby/sys/mountinfo v0.7.1
## explicit; go 1.16
github.com/moby/sys/mountinfo
# github.com/moby/sys/user v0.1.0
# github.com/moby/sys/user v0.3.0
## explicit; go 1.17
github.com/moby/sys/user
# github.com/moby/sys/userns v0.1.0
## explicit; go 1.21
github.com/moby/sys/userns
# github.com/mrunalp/fileutils v0.5.1
## explicit; go 1.13
github.com/mrunalp/fileutils