vendor: update runtime-tools to HEAD

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
This commit is contained in:
Vincent Batts 2018-03-06 13:19:38 -05:00
parent 0e0c820f0c
commit a39495dc4b
Signed by: vbatts
GPG key ID: 10937E57733F1362
8 changed files with 277 additions and 207 deletions

View file

@ -20,7 +20,7 @@ github.com/containernetworking/cni v0.4.0
google.golang.org/grpc v1.0.4 https://github.com/grpc/grpc-go google.golang.org/grpc v1.0.4 https://github.com/grpc/grpc-go
github.com/opencontainers/selinux b29023b86e4a69d1b46b7e7b4e2b6fda03f0b9cd github.com/opencontainers/selinux b29023b86e4a69d1b46b7e7b4e2b6fda03f0b9cd
github.com/opencontainers/go-digest v1.0.0-rc0 github.com/opencontainers/go-digest v1.0.0-rc0
github.com/opencontainers/runtime-tools 263fad0457d4a42d08aea3fb2bc4da7d2f8c3af7 github.com/opencontainers/runtime-tools fdbc3d6d9507f699bbfd557dce0640c02b5f60e4
github.com/opencontainers/runc ce80fa0a64803d52883955cb77b2708b438a0b28 github.com/opencontainers/runc ce80fa0a64803d52883955cb77b2708b438a0b28
github.com/mrunalp/fileutils master github.com/mrunalp/fileutils master
github.com/vishvananda/netlink master github.com/vishvananda/netlink master

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@ -2,7 +2,6 @@ package seccomp
import ( import (
"runtime" "runtime"
"syscall"
"github.com/opencontainers/runtime-spec/specs-go" "github.com/opencontainers/runtime-spec/specs-go"
rspec "github.com/opencontainers/runtime-spec/specs-go" rspec "github.com/opencontainers/runtime-spec/specs-go"
@ -513,7 +512,7 @@ func DefaultProfile(rs *specs.Spec) *rspec.LinuxSeccomp {
Args: []rspec.LinuxSeccompArg{ Args: []rspec.LinuxSeccompArg{
{ {
Index: sysCloneFlagsIndex, Index: sysCloneFlagsIndex,
Value: syscall.CLONE_NEWNS | syscall.CLONE_NEWUTS | syscall.CLONE_NEWIPC | syscall.CLONE_NEWUSER | syscall.CLONE_NEWPID | syscall.CLONE_NEWNET, Value: CloneNewNS | CloneNewUTS | CloneNewIPC | CloneNewUser | CloneNewPID | CloneNewNet,
ValueTwo: 0, ValueTwo: 0,
Op: rspec.OpMaskedEqual, Op: rspec.OpMaskedEqual,
}, },

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@ -0,0 +1,15 @@
// +build linux
package seccomp
import "syscall"
// System values passed through on linux
const (
CloneNewIPC = syscall.CLONE_NEWIPC
CloneNewNet = syscall.CLONE_NEWNET
CloneNewNS = syscall.CLONE_NEWNS
CloneNewPID = syscall.CLONE_NEWPID
CloneNewUser = syscall.CLONE_NEWUSER
CloneNewUTS = syscall.CLONE_NEWUTS
)

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@ -0,0 +1,15 @@
// +build !linux
package seccomp
// These are copied from linux/amd64 syscall values, as a reference for other
// platforms to have access to
const (
CloneNewIPC = 0x8000000
CloneNewNet = 0x40000000
CloneNewNS = 0x20000
CloneNewPID = 0x20000000
CloneNewUser = 0x10000000
CloneNewUTS = 0x4000000
CloneNewCgroup = 0x02000000
)

View file

@ -14,8 +14,8 @@ const (
RootOnWindowsRequired RootOnWindowsRequired
// RootOnHyperVNotSet represents "For Hyper-V Containers, this field MUST NOT be set." // RootOnHyperVNotSet represents "For Hyper-V Containers, this field MUST NOT be set."
RootOnHyperVNotSet RootOnHyperVNotSet
// RootOnNonHyperVRequired represents "On all other platforms, this field is REQUIRED." // RootOnNonWindowsRequired represents "On all other platforms, this field is REQUIRED."
RootOnNonHyperVRequired RootOnNonWindowsRequired
// RootPathOnWindowsGUID represents "On Windows, `path` MUST be a volume GUID path." // RootPathOnWindowsGUID represents "On Windows, `path` MUST be a volume GUID path."
RootPathOnWindowsGUID RootPathOnWindowsGUID
// RootPathOnPosixConvention represents "The value SHOULD be the conventional `rootfs`." // RootPathOnPosixConvention represents "The value SHOULD be the conventional `rootfs`."
@ -145,7 +145,7 @@ func init() {
register(SpecVersionInSemVer, rfc2119.Must, specificationVersionRef) register(SpecVersionInSemVer, rfc2119.Must, specificationVersionRef)
register(RootOnWindowsRequired, rfc2119.Required, rootRef) register(RootOnWindowsRequired, rfc2119.Required, rootRef)
register(RootOnHyperVNotSet, rfc2119.Must, rootRef) register(RootOnHyperVNotSet, rfc2119.Must, rootRef)
register(RootOnNonHyperVRequired, rfc2119.Required, rootRef) register(RootOnNonWindowsRequired, rfc2119.Required, rootRef)
register(RootPathOnWindowsGUID, rfc2119.Must, rootRef) register(RootPathOnWindowsGUID, rfc2119.Must, rootRef)
register(RootPathOnPosixConvention, rfc2119.Should, rootRef) register(RootPathOnPosixConvention, rfc2119.Should, rootRef)
register(RootPathExist, rfc2119.Must, rootRef) register(RootPathExist, rfc2119.Must, rootRef)

View file

@ -13,7 +13,6 @@ import (
"regexp" "regexp"
"runtime" "runtime"
"strings" "strings"
"syscall"
"unicode" "unicode"
"unicode/utf8" "unicode/utf8"
@ -171,16 +170,21 @@ func (v *Validator) CheckJSONSchema() (errs error) {
func (v *Validator) CheckRoot() (errs error) { func (v *Validator) CheckRoot() (errs error) {
logrus.Debugf("check root") logrus.Debugf("check root")
if v.platform == "windows" && v.spec.Windows != nil && v.spec.Windows.HyperV != nil { if v.platform == "windows" && v.spec.Windows != nil {
if v.spec.Root != nil { if v.spec.Windows.HyperV != nil {
if v.spec.Root != nil {
errs = multierror.Append(errs,
specerror.NewError(specerror.RootOnHyperVNotSet, fmt.Errorf("for Hyper-V containers, Root must not be set"), rspec.Version))
}
return
} else if v.spec.Root == nil {
errs = multierror.Append(errs, errs = multierror.Append(errs,
specerror.NewError(specerror.RootOnHyperVNotSet, fmt.Errorf("for Hyper-V containers, Root must not be set"), rspec.Version)) specerror.NewError(specerror.RootOnWindowsRequired, fmt.Errorf("on Windows, for Windows Server Containers, this field is REQUIRED"), rspec.Version))
return return
} }
return } else if v.platform != "windows" && v.spec.Root == nil {
} else if v.spec.Root == nil {
errs = multierror.Append(errs, errs = multierror.Append(errs,
specerror.NewError(specerror.RootOnNonHyperVRequired, fmt.Errorf("for non-Hyper-V containers, Root must be set"), rspec.Version)) specerror.NewError(specerror.RootOnNonWindowsRequired, fmt.Errorf("on all other platforms, this field is REQUIRED"), rspec.Version))
return return
} }
@ -585,189 +589,6 @@ func (v *Validator) CheckPlatform() (errs error) {
return return
} }
// CheckLinux checks v.spec.Linux
func (v *Validator) CheckLinux() (errs error) {
logrus.Debugf("check linux")
if v.spec.Linux == nil {
return
}
var nsTypeList = map[rspec.LinuxNamespaceType]struct {
num int
newExist bool
}{
rspec.PIDNamespace: {0, false},
rspec.NetworkNamespace: {0, false},
rspec.MountNamespace: {0, false},
rspec.IPCNamespace: {0, false},
rspec.UTSNamespace: {0, false},
rspec.UserNamespace: {0, false},
rspec.CgroupNamespace: {0, false},
}
for index := 0; index < len(v.spec.Linux.Namespaces); index++ {
ns := v.spec.Linux.Namespaces[index]
if ns.Path != "" && !osFilepath.IsAbs(v.platform, ns.Path) {
errs = multierror.Append(errs, specerror.NewError(specerror.NSPathAbs, fmt.Errorf("namespace.path %q is not an absolute path", ns.Path), rspec.Version))
}
tmpItem := nsTypeList[ns.Type]
tmpItem.num = tmpItem.num + 1
if tmpItem.num > 1 {
errs = multierror.Append(errs, specerror.NewError(specerror.NSErrorOnDup, fmt.Errorf("duplicated namespace %q", ns.Type), rspec.Version))
}
if len(ns.Path) == 0 {
tmpItem.newExist = true
}
nsTypeList[ns.Type] = tmpItem
}
if (len(v.spec.Linux.UIDMappings) > 0 || len(v.spec.Linux.GIDMappings) > 0) && !nsTypeList[rspec.UserNamespace].newExist {
errs = multierror.Append(errs, errors.New("the UID/GID mappings requires a new User namespace to be specified as well"))
}
for k := range v.spec.Linux.Sysctl {
if strings.HasPrefix(k, "net.") && !nsTypeList[rspec.NetworkNamespace].newExist {
errs = multierror.Append(errs, fmt.Errorf("sysctl %v requires a new Network namespace to be specified as well", k))
}
if strings.HasPrefix(k, "fs.mqueue.") {
if !nsTypeList[rspec.MountNamespace].newExist || !nsTypeList[rspec.IPCNamespace].newExist {
errs = multierror.Append(errs, fmt.Errorf("sysctl %v requires a new IPC namespace and Mount namespace to be specified as well", k))
}
}
}
if v.platform == "linux" && !nsTypeList[rspec.UTSNamespace].newExist && v.spec.Hostname != "" {
errs = multierror.Append(errs, fmt.Errorf("on Linux, hostname requires a new UTS namespace to be specified as well"))
}
// Linux devices validation
devList := make(map[string]bool)
devTypeList := make(map[string]bool)
for index := 0; index < len(v.spec.Linux.Devices); index++ {
device := v.spec.Linux.Devices[index]
if !deviceValid(device) {
errs = multierror.Append(errs, fmt.Errorf("device %v is invalid", device))
}
if _, exists := devList[device.Path]; exists {
errs = multierror.Append(errs, fmt.Errorf("device %s is duplicated", device.Path))
} else {
var rootfsPath string
if filepath.IsAbs(v.spec.Root.Path) {
rootfsPath = v.spec.Root.Path
} else {
rootfsPath = filepath.Join(v.bundlePath, v.spec.Root.Path)
}
absPath := filepath.Join(rootfsPath, device.Path)
fi, err := os.Stat(absPath)
if os.IsNotExist(err) {
devList[device.Path] = true
} else if err != nil {
errs = multierror.Append(errs, err)
} else {
fStat, ok := fi.Sys().(*syscall.Stat_t)
if !ok {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesAvailable,
fmt.Errorf("cannot determine state for device %s", device.Path), rspec.Version))
continue
}
var devType string
switch fStat.Mode & syscall.S_IFMT {
case syscall.S_IFCHR:
devType = "c"
case syscall.S_IFBLK:
devType = "b"
case syscall.S_IFIFO:
devType = "p"
default:
devType = "unmatched"
}
if devType != device.Type || (devType == "c" && device.Type == "u") {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesFileNotMatch,
fmt.Errorf("unmatched %s already exists in filesystem", device.Path), rspec.Version))
continue
}
if devType != "p" {
dev := fStat.Rdev
major := (dev >> 8) & 0xfff
minor := (dev & 0xff) | ((dev >> 12) & 0xfff00)
if int64(major) != device.Major || int64(minor) != device.Minor {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesFileNotMatch,
fmt.Errorf("unmatched %s already exists in filesystem", device.Path), rspec.Version))
continue
}
}
if device.FileMode != nil {
expectedPerm := *device.FileMode & os.ModePerm
actualPerm := fi.Mode() & os.ModePerm
if expectedPerm != actualPerm {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesFileNotMatch,
fmt.Errorf("unmatched %s already exists in filesystem", device.Path), rspec.Version))
continue
}
}
if device.UID != nil {
if *device.UID != fStat.Uid {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesFileNotMatch,
fmt.Errorf("unmatched %s already exists in filesystem", device.Path), rspec.Version))
continue
}
}
if device.GID != nil {
if *device.GID != fStat.Gid {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesFileNotMatch,
fmt.Errorf("unmatched %s already exists in filesystem", device.Path), rspec.Version))
continue
}
}
}
}
// unify u->c when comparing, they are synonyms
var devID string
if device.Type == "u" {
devID = fmt.Sprintf("%s:%d:%d", "c", device.Major, device.Minor)
} else {
devID = fmt.Sprintf("%s:%d:%d", device.Type, device.Major, device.Minor)
}
if _, exists := devTypeList[devID]; exists {
logrus.Warnf("%v", specerror.NewError(specerror.DevicesErrorOnDup, fmt.Errorf("type:%s, major:%d and minor:%d for linux devices is duplicated", device.Type, device.Major, device.Minor), rspec.Version))
} else {
devTypeList[devID] = true
}
}
if v.spec.Linux.Resources != nil {
errs = multierror.Append(errs, v.CheckLinuxResources())
}
for _, maskedPath := range v.spec.Linux.MaskedPaths {
if !strings.HasPrefix(maskedPath, "/") {
errs = multierror.Append(errs,
specerror.NewError(
specerror.MaskedPathsAbs,
fmt.Errorf("maskedPath %v is not an absolute path", maskedPath),
rspec.Version))
}
}
for _, readonlyPath := range v.spec.Linux.ReadonlyPaths {
if !strings.HasPrefix(readonlyPath, "/") {
errs = multierror.Append(errs,
specerror.NewError(
specerror.ReadonlyPathsAbs,
fmt.Errorf("readonlyPath %v is not an absolute path", readonlyPath),
rspec.Version))
}
}
return
}
// CheckLinuxResources checks v.spec.Linux.Resources // CheckLinuxResources checks v.spec.Linux.Resources
func (v *Validator) CheckLinuxResources() (errs error) { func (v *Validator) CheckLinuxResources() (errs error) {
logrus.Debugf("check linux resources") logrus.Debugf("check linux resources")
@ -857,17 +678,6 @@ func CapValid(c string, hostSpecific bool) error {
return nil return nil
} }
// LastCap return last cap of system
func LastCap() capability.Cap {
last := capability.CAP_LAST_CAP
// hack for RHEL6 which has no /proc/sys/kernel/cap_last_cap
if last == capability.Cap(63) {
last = capability.CAP_BLOCK_SUSPEND
}
return last
}
func envValid(env string) bool { func envValid(env string) bool {
items := strings.Split(env, "=") items := strings.Split(env, "=")
if len(items) < 2 { if len(items) < 2 {

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@ -0,0 +1,214 @@
// +build linux
package validate
import (
"errors"
"fmt"
"os"
"path/filepath"
"strings"
"syscall"
"github.com/syndtr/gocapability/capability"
multierror "github.com/hashicorp/go-multierror"
rspec "github.com/opencontainers/runtime-spec/specs-go"
osFilepath "github.com/opencontainers/runtime-tools/filepath"
"github.com/opencontainers/runtime-tools/specerror"
"github.com/sirupsen/logrus"
)
// LastCap return last cap of system
func LastCap() capability.Cap {
last := capability.CAP_LAST_CAP
// hack for RHEL6 which has no /proc/sys/kernel/cap_last_cap
if last == capability.Cap(63) {
last = capability.CAP_BLOCK_SUSPEND
}
return last
}
// CheckLinux checks v.spec.Linux
func (v *Validator) CheckLinux() (errs error) {
logrus.Debugf("check linux")
if v.spec.Linux == nil {
return
}
var nsTypeList = map[rspec.LinuxNamespaceType]struct {
num int
newExist bool
}{
rspec.PIDNamespace: {0, false},
rspec.NetworkNamespace: {0, false},
rspec.MountNamespace: {0, false},
rspec.IPCNamespace: {0, false},
rspec.UTSNamespace: {0, false},
rspec.UserNamespace: {0, false},
rspec.CgroupNamespace: {0, false},
}
for index := 0; index < len(v.spec.Linux.Namespaces); index++ {
ns := v.spec.Linux.Namespaces[index]
if ns.Path != "" && !osFilepath.IsAbs(v.platform, ns.Path) {
errs = multierror.Append(errs, specerror.NewError(specerror.NSPathAbs, fmt.Errorf("namespace.path %q is not an absolute path", ns.Path), rspec.Version))
}
tmpItem := nsTypeList[ns.Type]
tmpItem.num = tmpItem.num + 1
if tmpItem.num > 1 {
errs = multierror.Append(errs, specerror.NewError(specerror.NSErrorOnDup, fmt.Errorf("duplicated namespace %q", ns.Type), rspec.Version))
}
if len(ns.Path) == 0 {
tmpItem.newExist = true
}
nsTypeList[ns.Type] = tmpItem
}
if (len(v.spec.Linux.UIDMappings) > 0 || len(v.spec.Linux.GIDMappings) > 0) && !nsTypeList[rspec.UserNamespace].newExist {
errs = multierror.Append(errs, errors.New("the UID/GID mappings requires a new User namespace to be specified as well"))
}
for k := range v.spec.Linux.Sysctl {
if strings.HasPrefix(k, "net.") && !nsTypeList[rspec.NetworkNamespace].newExist {
errs = multierror.Append(errs, fmt.Errorf("sysctl %v requires a new Network namespace to be specified as well", k))
}
if strings.HasPrefix(k, "fs.mqueue.") {
if !nsTypeList[rspec.MountNamespace].newExist || !nsTypeList[rspec.IPCNamespace].newExist {
errs = multierror.Append(errs, fmt.Errorf("sysctl %v requires a new IPC namespace and Mount namespace to be specified as well", k))
}
}
}
if v.platform == "linux" && !nsTypeList[rspec.UTSNamespace].newExist && v.spec.Hostname != "" {
errs = multierror.Append(errs, fmt.Errorf("on Linux, hostname requires a new UTS namespace to be specified as well"))
}
// Linux devices validation
devList := make(map[string]bool)
devTypeList := make(map[string]bool)
for index := 0; index < len(v.spec.Linux.Devices); index++ {
device := v.spec.Linux.Devices[index]
if !deviceValid(device) {
errs = multierror.Append(errs, fmt.Errorf("device %v is invalid", device))
}
if _, exists := devList[device.Path]; exists {
errs = multierror.Append(errs, fmt.Errorf("device %s is duplicated", device.Path))
} else {
var rootfsPath string
if filepath.IsAbs(v.spec.Root.Path) {
rootfsPath = v.spec.Root.Path
} else {
rootfsPath = filepath.Join(v.bundlePath, v.spec.Root.Path)
}
absPath := filepath.Join(rootfsPath, device.Path)
fi, err := os.Stat(absPath)
if os.IsNotExist(err) {
devList[device.Path] = true
} else if err != nil {
errs = multierror.Append(errs, err)
} else {
fStat, ok := fi.Sys().(*syscall.Stat_t)
if !ok {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesAvailable,
fmt.Errorf("cannot determine state for device %s", device.Path), rspec.Version))
continue
}
var devType string
switch fStat.Mode & syscall.S_IFMT {
case syscall.S_IFCHR:
devType = "c"
case syscall.S_IFBLK:
devType = "b"
case syscall.S_IFIFO:
devType = "p"
default:
devType = "unmatched"
}
if devType != device.Type || (devType == "c" && device.Type == "u") {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesFileNotMatch,
fmt.Errorf("unmatched %s already exists in filesystem", device.Path), rspec.Version))
continue
}
if devType != "p" {
dev := fStat.Rdev
major := (dev >> 8) & 0xfff
minor := (dev & 0xff) | ((dev >> 12) & 0xfff00)
if int64(major) != device.Major || int64(minor) != device.Minor {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesFileNotMatch,
fmt.Errorf("unmatched %s already exists in filesystem", device.Path), rspec.Version))
continue
}
}
if device.FileMode != nil {
expectedPerm := *device.FileMode & os.ModePerm
actualPerm := fi.Mode() & os.ModePerm
if expectedPerm != actualPerm {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesFileNotMatch,
fmt.Errorf("unmatched %s already exists in filesystem", device.Path), rspec.Version))
continue
}
}
if device.UID != nil {
if *device.UID != fStat.Uid {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesFileNotMatch,
fmt.Errorf("unmatched %s already exists in filesystem", device.Path), rspec.Version))
continue
}
}
if device.GID != nil {
if *device.GID != fStat.Gid {
errs = multierror.Append(errs, specerror.NewError(specerror.DevicesFileNotMatch,
fmt.Errorf("unmatched %s already exists in filesystem", device.Path), rspec.Version))
continue
}
}
}
}
// unify u->c when comparing, they are synonyms
var devID string
if device.Type == "u" {
devID = fmt.Sprintf("%s:%d:%d", "c", device.Major, device.Minor)
} else {
devID = fmt.Sprintf("%s:%d:%d", device.Type, device.Major, device.Minor)
}
if _, exists := devTypeList[devID]; exists {
logrus.Warnf("type:%s, major:%d and minor:%d for linux devices is duplicated", device.Type, device.Major, device.Minor)
} else {
devTypeList[devID] = true
}
}
if v.spec.Linux.Resources != nil {
errs = multierror.Append(errs, v.CheckLinuxResources())
}
for _, maskedPath := range v.spec.Linux.MaskedPaths {
if !strings.HasPrefix(maskedPath, "/") {
errs = multierror.Append(errs,
specerror.NewError(
specerror.MaskedPathsAbs,
fmt.Errorf("maskedPath %v is not an absolute path", maskedPath),
rspec.Version))
}
}
for _, readonlyPath := range v.spec.Linux.ReadonlyPaths {
if !strings.HasPrefix(readonlyPath, "/") {
errs = multierror.Append(errs,
specerror.NewError(
specerror.ReadonlyPathsAbs,
fmt.Errorf("readonlyPath %v is not an absolute path", readonlyPath),
rspec.Version))
}
}
return
}

View file

@ -0,0 +1,17 @@
// +build !linux
package validate
import (
"github.com/syndtr/gocapability/capability"
)
// LastCap return last cap of system
func LastCap() capability.Cap {
return capability.Cap(-1)
}
// CheckLinux is a noop on this platform
func (v *Validator) CheckLinux() (errs error) {
return nil
}