Update vendors.

Signed-off-by: Lantao Liu <lantaol@google.com>

vendor/github.com/opencontainers/runc/libcontainer/apparmor/apparmor.go

@@ -0,0 +1,54 @@
+// +build apparmor,linux
+
+package apparmor
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+)
+
+// IsEnabled returns true if apparmor is enabled for the host.
+func IsEnabled() bool {
+	if _, err := os.Stat("/sys/kernel/security/apparmor"); err == nil && os.Getenv("container") == "" {
+		if _, err = os.Stat("/sbin/apparmor_parser"); err == nil {
+			buf, err := ioutil.ReadFile("/sys/module/apparmor/parameters/enabled")
+			return err == nil && len(buf) > 1 && buf[0] == 'Y'
+		}
+	}
+	return false
+}
+
+func setprocattr(attr, value string) error {
+	// Under AppArmor you can only change your own attr, so use /proc/self/
+	// instead of /proc/<tid>/ like libapparmor does
+	path := fmt.Sprintf("/proc/self/attr/%s", attr)
+
+	f, err := os.OpenFile(path, os.O_WRONLY, 0)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	_, err = fmt.Fprintf(f, "%s", value)
+	return err
+}
+
+// changeOnExec reimplements aa_change_onexec from libapparmor in Go
+func changeOnExec(name string) error {
+	value := "exec " + name
+	if err := setprocattr("exec", value); err != nil {
+		return fmt.Errorf("apparmor failed to apply profile: %s", err)
+	}
+	return nil
+}
+
+// ApplyProfile will apply the profile with the specified name to the process after
+// the next exec.
+func ApplyProfile(name string) error {
+	if name == "" {
+		return nil
+	}
+
+	return changeOnExec(name)
+}

vendor/github.com/opencontainers/runc/libcontainer/apparmor/apparmor_disabled.go

@@ -0,0 +1,20 @@
+// +build !apparmor !linux
+
+package apparmor
+
+import (
+	"errors"
+)
+
+var ErrApparmorNotEnabled = errors.New("apparmor: config provided but apparmor not supported")
+
+func IsEnabled() bool {
+	return false
+}
+
+func ApplyProfile(name string) error {
+	if name != "" {
+		return ErrApparmorNotEnabled
+	}
+	return nil
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/blkio_device.go

@@ -0,0 +1,61 @@
+package configs
+
+import "fmt"
+
+// blockIODevice holds major:minor format supported in blkio cgroup
+type blockIODevice struct {
+	// Major is the device's major number
+	Major int64 `json:"major"`
+	// Minor is the device's minor number
+	Minor int64 `json:"minor"`
+}
+
+// WeightDevice struct holds a `major:minor weight`|`major:minor leaf_weight` pair
+type WeightDevice struct {
+	blockIODevice
+	// Weight is the bandwidth rate for the device, range is from 10 to 1000
+	Weight uint16 `json:"weight"`
+	// LeafWeight is the bandwidth rate for the device while competing with the cgroup's child cgroups, range is from 10 to 1000, cfq scheduler only
+	LeafWeight uint16 `json:"leafWeight"`
+}
+
+// NewWeightDevice returns a configured WeightDevice pointer
+func NewWeightDevice(major, minor int64, weight, leafWeight uint16) *WeightDevice {
+	wd := &WeightDevice{}
+	wd.Major = major
+	wd.Minor = minor
+	wd.Weight = weight
+	wd.LeafWeight = leafWeight
+	return wd
+}
+
+// WeightString formats the struct to be writable to the cgroup specific file
+func (wd *WeightDevice) WeightString() string {
+	return fmt.Sprintf("%d:%d %d", wd.Major, wd.Minor, wd.Weight)
+}
+
+// LeafWeightString formats the struct to be writable to the cgroup specific file
+func (wd *WeightDevice) LeafWeightString() string {
+	return fmt.Sprintf("%d:%d %d", wd.Major, wd.Minor, wd.LeafWeight)
+}
+
+// ThrottleDevice struct holds a `major:minor rate_per_second` pair
+type ThrottleDevice struct {
+	blockIODevice
+	// Rate is the IO rate limit per cgroup per device
+	Rate uint64 `json:"rate"`
+}
+
+// NewThrottleDevice returns a configured ThrottleDevice pointer
+func NewThrottleDevice(major, minor int64, rate uint64) *ThrottleDevice {
+	td := &ThrottleDevice{}
+	td.Major = major
+	td.Minor = minor
+	td.Rate = rate
+	return td
+}
+
+// String formats the struct to be writable to the cgroup specific file
+func (td *ThrottleDevice) String() string {
+	return fmt.Sprintf("%d:%d %d", td.Major, td.Minor, td.Rate)
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/cgroup_linux.go

@@ -0,0 +1,122 @@
+package configs
+
+type FreezerState string
+
+const (
+	Undefined FreezerState = ""
+	Frozen    FreezerState = "FROZEN"
+	Thawed    FreezerState = "THAWED"
+)
+
+type Cgroup struct {
+	// Deprecated, use Path instead
+	Name string `json:"name,omitempty"`
+
+	// name of parent of cgroup or slice
+	// Deprecated, use Path instead
+	Parent string `json:"parent,omitempty"`
+
+	// Path specifies the path to cgroups that are created and/or joined by the container.
+	// The path is assumed to be relative to the host system cgroup mountpoint.
+	Path string `json:"path"`
+
+	// ScopePrefix describes prefix for the scope name
+	ScopePrefix string `json:"scope_prefix"`
+
+	// Paths represent the absolute cgroups paths to join.
+	// This takes precedence over Path.
+	Paths map[string]string
+
+	// Resources contains various cgroups settings to apply
+	*Resources
+}
+
+type Resources struct {
+	// If this is true allow access to any kind of device within the container.  If false, allow access only to devices explicitly listed in the allowed_devices list.
+	// Deprecated
+	AllowAllDevices *bool `json:"allow_all_devices,omitempty"`
+	// Deprecated
+	AllowedDevices []*Device `json:"allowed_devices,omitempty"`
+	// Deprecated
+	DeniedDevices []*Device `json:"denied_devices,omitempty"`
+
+	Devices []*Device `json:"devices"`
+
+	// Memory limit (in bytes)
+	Memory int64 `json:"memory"`
+
+	// Memory reservation or soft_limit (in bytes)
+	MemoryReservation int64 `json:"memory_reservation"`
+
+	// Total memory usage (memory + swap); set `-1` to enable unlimited swap
+	MemorySwap int64 `json:"memory_swap"`
+
+	// Kernel memory limit (in bytes)
+	KernelMemory int64 `json:"kernel_memory"`
+
+	// Kernel memory limit for TCP use (in bytes)
+	KernelMemoryTCP int64 `json:"kernel_memory_tcp"`
+
+	// CPU shares (relative weight vs. other containers)
+	CpuShares uint64 `json:"cpu_shares"`
+
+	// CPU hardcap limit (in usecs). Allowed cpu time in a given period.
+	CpuQuota int64 `json:"cpu_quota"`
+
+	// CPU period to be used for hardcapping (in usecs). 0 to use system default.
+	CpuPeriod uint64 `json:"cpu_period"`
+
+	// How many time CPU will use in realtime scheduling (in usecs).
+	CpuRtRuntime int64 `json:"cpu_rt_quota"`
+
+	// CPU period to be used for realtime scheduling (in usecs).
+	CpuRtPeriod uint64 `json:"cpu_rt_period"`
+
+	// CPU to use
+	CpusetCpus string `json:"cpuset_cpus"`
+
+	// MEM to use
+	CpusetMems string `json:"cpuset_mems"`
+
+	// Process limit; set <= `0' to disable limit.
+	PidsLimit int64 `json:"pids_limit"`
+
+	// Specifies per cgroup weight, range is from 10 to 1000.
+	BlkioWeight uint16 `json:"blkio_weight"`
+
+	// Specifies tasks' weight in the given cgroup while competing with the cgroup's child cgroups, range is from 10 to 1000, cfq scheduler only
+	BlkioLeafWeight uint16 `json:"blkio_leaf_weight"`
+
+	// Weight per cgroup per device, can override BlkioWeight.
+	BlkioWeightDevice []*WeightDevice `json:"blkio_weight_device"`
+
+	// IO read rate limit per cgroup per device, bytes per second.
+	BlkioThrottleReadBpsDevice []*ThrottleDevice `json:"blkio_throttle_read_bps_device"`
+
+	// IO write rate limit per cgroup per device, bytes per second.
+	BlkioThrottleWriteBpsDevice []*ThrottleDevice `json:"blkio_throttle_write_bps_device"`
+
+	// IO read rate limit per cgroup per device, IO per second.
+	BlkioThrottleReadIOPSDevice []*ThrottleDevice `json:"blkio_throttle_read_iops_device"`
+
+	// IO write rate limit per cgroup per device, IO per second.
+	BlkioThrottleWriteIOPSDevice []*ThrottleDevice `json:"blkio_throttle_write_iops_device"`
+
+	// set the freeze value for the process
+	Freezer FreezerState `json:"freezer"`
+
+	// Hugetlb limit (in bytes)
+	HugetlbLimit []*HugepageLimit `json:"hugetlb_limit"`
+
+	// Whether to disable OOM Killer
+	OomKillDisable bool `json:"oom_kill_disable"`
+
+	// Tuning swappiness behaviour per cgroup
+	MemorySwappiness *uint64 `json:"memory_swappiness"`
+
+	// Set priority of network traffic for container
+	NetPrioIfpriomap []*IfPrioMap `json:"net_prio_ifpriomap"`
+
+	// Set class identifier for container's network packets
+	NetClsClassid uint32 `json:"net_cls_classid_u"`
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/cgroup_windows.go

@@ -0,0 +1,6 @@
+package configs
+
+// TODO Windows: This can ultimately be entirely factored out on Windows as
+// cgroups are a Unix-specific construct.
+type Cgroup struct {
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/config.go

@@ -0,0 +1,348 @@
+package configs
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"os/exec"
+	"time"
+
+	"github.com/opencontainers/runtime-spec/specs-go"
+
+	"github.com/sirupsen/logrus"
+)
+
+type Rlimit struct {
+	Type int    `json:"type"`
+	Hard uint64 `json:"hard"`
+	Soft uint64 `json:"soft"`
+}
+
+// IDMap represents UID/GID Mappings for User Namespaces.
+type IDMap struct {
+	ContainerID int `json:"container_id"`
+	HostID      int `json:"host_id"`
+	Size        int `json:"size"`
+}
+
+// Seccomp represents syscall restrictions
+// By default, only the native architecture of the kernel is allowed to be used
+// for syscalls. Additional architectures can be added by specifying them in
+// Architectures.
+type Seccomp struct {
+	DefaultAction Action     `json:"default_action"`
+	Architectures []string   `json:"architectures"`
+	Syscalls      []*Syscall `json:"syscalls"`
+}
+
+// Action is taken upon rule match in Seccomp
+type Action int
+
+const (
+	Kill Action = iota + 1
+	Errno
+	Trap
+	Allow
+	Trace
+)
+
+// Operator is a comparison operator to be used when matching syscall arguments in Seccomp
+type Operator int
+
+const (
+	EqualTo Operator = iota + 1
+	NotEqualTo
+	GreaterThan
+	GreaterThanOrEqualTo
+	LessThan
+	LessThanOrEqualTo
+	MaskEqualTo
+)
+
+// Arg is a rule to match a specific syscall argument in Seccomp
+type Arg struct {
+	Index    uint     `json:"index"`
+	Value    uint64   `json:"value"`
+	ValueTwo uint64   `json:"value_two"`
+	Op       Operator `json:"op"`
+}
+
+// Syscall is a rule to match a syscall in Seccomp
+type Syscall struct {
+	Name   string `json:"name"`
+	Action Action `json:"action"`
+	Args   []*Arg `json:"args"`
+}
+
+// TODO Windows. Many of these fields should be factored out into those parts
+// which are common across platforms, and those which are platform specific.
+
+// Config defines configuration options for executing a process inside a contained environment.
+type Config struct {
+	// NoPivotRoot will use MS_MOVE and a chroot to jail the process into the container's rootfs
+	// This is a common option when the container is running in ramdisk
+	NoPivotRoot bool `json:"no_pivot_root"`
+
+	// ParentDeathSignal specifies the signal that is sent to the container's process in the case
+	// that the parent process dies.
+	ParentDeathSignal int `json:"parent_death_signal"`
+
+	// Path to a directory containing the container's root filesystem.
+	Rootfs string `json:"rootfs"`
+
+	// Readonlyfs will remount the container's rootfs as readonly where only externally mounted
+	// bind mounts are writtable.
+	Readonlyfs bool `json:"readonlyfs"`
+
+	// Specifies the mount propagation flags to be applied to /.
+	RootPropagation int `json:"rootPropagation"`
+
+	// Mounts specify additional source and destination paths that will be mounted inside the container's
+	// rootfs and mount namespace if specified
+	Mounts []*Mount `json:"mounts"`
+
+	// The device nodes that should be automatically created within the container upon container start.  Note, make sure that the node is marked as allowed in the cgroup as well!
+	Devices []*Device `json:"devices"`
+
+	MountLabel string `json:"mount_label"`
+
+	// Hostname optionally sets the container's hostname if provided
+	Hostname string `json:"hostname"`
+
+	// Namespaces specifies the container's namespaces that it should setup when cloning the init process
+	// If a namespace is not provided that namespace is shared from the container's parent process
+	Namespaces Namespaces `json:"namespaces"`
+
+	// Capabilities specify the capabilities to keep when executing the process inside the container
+	// All capabilities not specified will be dropped from the processes capability mask
+	Capabilities *Capabilities `json:"capabilities"`
+
+	// Networks specifies the container's network setup to be created
+	Networks []*Network `json:"networks"`
+
+	// Routes can be specified to create entries in the route table as the container is started
+	Routes []*Route `json:"routes"`
+
+	// Cgroups specifies specific cgroup settings for the various subsystems that the container is
+	// placed into to limit the resources the container has available
+	Cgroups *Cgroup `json:"cgroups"`
+
+	// AppArmorProfile specifies the profile to apply to the process running in the container and is
+	// change at the time the process is execed
+	AppArmorProfile string `json:"apparmor_profile,omitempty"`
+
+	// ProcessLabel specifies the label to apply to the process running in the container.  It is
+	// commonly used by selinux
+	ProcessLabel string `json:"process_label,omitempty"`
+
+	// Rlimits specifies the resource limits, such as max open files, to set in the container
+	// If Rlimits are not set, the container will inherit rlimits from the parent process
+	Rlimits []Rlimit `json:"rlimits,omitempty"`
+
+	// OomScoreAdj specifies the adjustment to be made by the kernel when calculating oom scores
+	// for a process. Valid values are between the range [-1000, '1000'], where processes with
+	// higher scores are preferred for being killed.
+	// More information about kernel oom score calculation here: https://lwn.net/Articles/317814/
+	OomScoreAdj int `json:"oom_score_adj"`
+
+	// UidMappings is an array of User ID mappings for User Namespaces
+	UidMappings []IDMap `json:"uid_mappings"`
+
+	// GidMappings is an array of Group ID mappings for User Namespaces
+	GidMappings []IDMap `json:"gid_mappings"`
+
+	// MaskPaths specifies paths within the container's rootfs to mask over with a bind
+	// mount pointing to /dev/null as to prevent reads of the file.
+	MaskPaths []string `json:"mask_paths"`
+
+	// ReadonlyPaths specifies paths within the container's rootfs to remount as read-only
+	// so that these files prevent any writes.
+	ReadonlyPaths []string `json:"readonly_paths"`
+
+	// Sysctl is a map of properties and their values. It is the equivalent of using
+	// sysctl -w my.property.name value in Linux.
+	Sysctl map[string]string `json:"sysctl"`
+
+	// Seccomp allows actions to be taken whenever a syscall is made within the container.
+	// A number of rules are given, each having an action to be taken if a syscall matches it.
+	// A default action to be taken if no rules match is also given.
+	Seccomp *Seccomp `json:"seccomp"`
+
+	// NoNewPrivileges controls whether processes in the container can gain additional privileges.
+	NoNewPrivileges bool `json:"no_new_privileges,omitempty"`
+
+	// Hooks are a collection of actions to perform at various container lifecycle events.
+	// CommandHooks are serialized to JSON, but other hooks are not.
+	Hooks *Hooks
+
+	// Version is the version of opencontainer specification that is supported.
+	Version string `json:"version"`
+
+	// Labels are user defined metadata that is stored in the config and populated on the state
+	Labels []string `json:"labels"`
+
+	// NoNewKeyring will not allocated a new session keyring for the container.  It will use the
+	// callers keyring in this case.
+	NoNewKeyring bool `json:"no_new_keyring"`
+
+	// Rootless specifies whether the container is a rootless container.
+	Rootless bool `json:"rootless"`
+
+	// IntelRdt specifies settings for Intel RDT/CAT group that the container is placed into
+	// to limit the resources (e.g., L3 cache) the container has available
+	IntelRdt *IntelRdt `json:"intel_rdt,omitempty"`
+}
+
+type Hooks struct {
+	// Prestart commands are executed after the container namespaces are created,
+	// but before the user supplied command is executed from init.
+	Prestart []Hook
+
+	// Poststart commands are executed after the container init process starts.
+	Poststart []Hook
+
+	// Poststop commands are executed after the container init process exits.
+	Poststop []Hook
+}
+
+type Capabilities struct {
+	// Bounding is the set of capabilities checked by the kernel.
+	Bounding []string
+	// Effective is the set of capabilities checked by the kernel.
+	Effective []string
+	// Inheritable is the capabilities preserved across execve.
+	Inheritable []string
+	// Permitted is the limiting superset for effective capabilities.
+	Permitted []string
+	// Ambient is the ambient set of capabilities that are kept.
+	Ambient []string
+}
+
+func (hooks *Hooks) UnmarshalJSON(b []byte) error {
+	var state struct {
+		Prestart  []CommandHook
+		Poststart []CommandHook
+		Poststop  []CommandHook
+	}
+
+	if err := json.Unmarshal(b, &state); err != nil {
+		return err
+	}
+
+	deserialize := func(shooks []CommandHook) (hooks []Hook) {
+		for _, shook := range shooks {
+			hooks = append(hooks, shook)
+		}
+
+		return hooks
+	}
+
+	hooks.Prestart = deserialize(state.Prestart)
+	hooks.Poststart = deserialize(state.Poststart)
+	hooks.Poststop = deserialize(state.Poststop)
+	return nil
+}
+
+func (hooks Hooks) MarshalJSON() ([]byte, error) {
+	serialize := func(hooks []Hook) (serializableHooks []CommandHook) {
+		for _, hook := range hooks {
+			switch chook := hook.(type) {
+			case CommandHook:
+				serializableHooks = append(serializableHooks, chook)
+			default:
+				logrus.Warnf("cannot serialize hook of type %T, skipping", hook)
+			}
+		}
+
+		return serializableHooks
+	}
+
+	return json.Marshal(map[string]interface{}{
+		"prestart":  serialize(hooks.Prestart),
+		"poststart": serialize(hooks.Poststart),
+		"poststop":  serialize(hooks.Poststop),
+	})
+}
+
+// HookState is the payload provided to a hook on execution.
+type HookState specs.State
+
+type Hook interface {
+	// Run executes the hook with the provided state.
+	Run(HookState) error
+}
+
+// NewFunctionHook will call the provided function when the hook is run.
+func NewFunctionHook(f func(HookState) error) FuncHook {
+	return FuncHook{
+		run: f,
+	}
+}
+
+type FuncHook struct {
+	run func(HookState) error
+}
+
+func (f FuncHook) Run(s HookState) error {
+	return f.run(s)
+}
+
+type Command struct {
+	Path    string         `json:"path"`
+	Args    []string       `json:"args"`
+	Env     []string       `json:"env"`
+	Dir     string         `json:"dir"`
+	Timeout *time.Duration `json:"timeout"`
+}
+
+// NewCommandHook will execute the provided command when the hook is run.
+func NewCommandHook(cmd Command) CommandHook {
+	return CommandHook{
+		Command: cmd,
+	}
+}
+
+type CommandHook struct {
+	Command
+}
+
+func (c Command) Run(s HookState) error {
+	b, err := json.Marshal(s)
+	if err != nil {
+		return err
+	}
+	var stdout, stderr bytes.Buffer
+	cmd := exec.Cmd{
+		Path:   c.Path,
+		Args:   c.Args,
+		Env:    c.Env,
+		Stdin:  bytes.NewReader(b),
+		Stdout: &stdout,
+		Stderr: &stderr,
+	}
+	if err := cmd.Start(); err != nil {
+		return err
+	}
+	errC := make(chan error, 1)
+	go func() {
+		err := cmd.Wait()
+		if err != nil {
+			err = fmt.Errorf("error running hook: %v, stdout: %s, stderr: %s", err, stdout.String(), stderr.String())
+		}
+		errC <- err
+	}()
+	var timerCh <-chan time.Time
+	if c.Timeout != nil {
+		timer := time.NewTimer(*c.Timeout)
+		defer timer.Stop()
+		timerCh = timer.C
+	}
+	select {
+	case err := <-errC:
+		return err
+	case <-timerCh:
+		cmd.Process.Kill()
+		cmd.Wait()
+		return fmt.Errorf("hook ran past specified timeout of %.1fs", c.Timeout.Seconds())
+	}
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/config_linux.go

@@ -0,0 +1,61 @@
+package configs
+
+import "fmt"
+
+// HostUID gets the translated uid for the process on host which could be
+// different when user namespaces are enabled.
+func (c Config) HostUID(containerId int) (int, error) {
+	if c.Namespaces.Contains(NEWUSER) {
+		if c.UidMappings == nil {
+			return -1, fmt.Errorf("User namespaces enabled, but no uid mappings found.")
+		}
+		id, found := c.hostIDFromMapping(containerId, c.UidMappings)
+		if !found {
+			return -1, fmt.Errorf("User namespaces enabled, but no user mapping found.")
+		}
+		return id, nil
+	}
+	// Return unchanged id.
+	return containerId, nil
+}
+
+// HostRootUID gets the root uid for the process on host which could be non-zero
+// when user namespaces are enabled.
+func (c Config) HostRootUID() (int, error) {
+	return c.HostUID(0)
+}
+
+// HostGID gets the translated gid for the process on host which could be
+// different when user namespaces are enabled.
+func (c Config) HostGID(containerId int) (int, error) {
+	if c.Namespaces.Contains(NEWUSER) {
+		if c.GidMappings == nil {
+			return -1, fmt.Errorf("User namespaces enabled, but no gid mappings found.")
+		}
+		id, found := c.hostIDFromMapping(containerId, c.GidMappings)
+		if !found {
+			return -1, fmt.Errorf("User namespaces enabled, but no group mapping found.")
+		}
+		return id, nil
+	}
+	// Return unchanged id.
+	return containerId, nil
+}
+
+// HostRootGID gets the root gid for the process on host which could be non-zero
+// when user namespaces are enabled.
+func (c Config) HostRootGID() (int, error) {
+	return c.HostGID(0)
+}
+
+// Utility function that gets a host ID for a container ID from user namespace map
+// if that ID is present in the map.
+func (c Config) hostIDFromMapping(containerID int, uMap []IDMap) (int, bool) {
+	for _, m := range uMap {
+		if (containerID >= m.ContainerID) && (containerID <= (m.ContainerID + m.Size - 1)) {
+			hostID := m.HostID + (containerID - m.ContainerID)
+			return hostID, true
+		}
+	}
+	return -1, false
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/device.go

@@ -0,0 +1,57 @@
+package configs
+
+import (
+	"fmt"
+	"os"
+)
+
+const (
+	Wildcard = -1
+)
+
+// TODO Windows: This can be factored out in the future
+
+type Device struct {
+	// Device type, block, char, etc.
+	Type rune `json:"type"`
+
+	// Path to the device.
+	Path string `json:"path"`
+
+	// Major is the device's major number.
+	Major int64 `json:"major"`
+
+	// Minor is the device's minor number.
+	Minor int64 `json:"minor"`
+
+	// Cgroup permissions format, rwm.
+	Permissions string `json:"permissions"`
+
+	// FileMode permission bits for the device.
+	FileMode os.FileMode `json:"file_mode"`
+
+	// Uid of the device.
+	Uid uint32 `json:"uid"`
+
+	// Gid of the device.
+	Gid uint32 `json:"gid"`
+
+	// Write the file to the allowed list
+	Allow bool `json:"allow"`
+}
+
+func (d *Device) CgroupString() string {
+	return fmt.Sprintf("%c %s:%s %s", d.Type, deviceNumberString(d.Major), deviceNumberString(d.Minor), d.Permissions)
+}
+
+func (d *Device) Mkdev() int {
+	return int((d.Major << 8) | (d.Minor & 0xff) | ((d.Minor & 0xfff00) << 12))
+}
+
+// deviceNumberString converts the device number to a string return result.
+func deviceNumberString(number int64) string {
+	if number == Wildcard {
+		return "*"
+	}
+	return fmt.Sprint(number)
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/device_defaults.go

@@ -0,0 +1,111 @@
+// +build linux
+
+package configs
+
+var (
+	// DefaultSimpleDevices are devices that are to be both allowed and created.
+	DefaultSimpleDevices = []*Device{
+		// /dev/null and zero
+		{
+			Path:        "/dev/null",
+			Type:        'c',
+			Major:       1,
+			Minor:       3,
+			Permissions: "rwm",
+			FileMode:    0666,
+		},
+		{
+			Path:        "/dev/zero",
+			Type:        'c',
+			Major:       1,
+			Minor:       5,
+			Permissions: "rwm",
+			FileMode:    0666,
+		},
+
+		{
+			Path:        "/dev/full",
+			Type:        'c',
+			Major:       1,
+			Minor:       7,
+			Permissions: "rwm",
+			FileMode:    0666,
+		},
+
+		// consoles and ttys
+		{
+			Path:        "/dev/tty",
+			Type:        'c',
+			Major:       5,
+			Minor:       0,
+			Permissions: "rwm",
+			FileMode:    0666,
+		},
+
+		// /dev/urandom,/dev/random
+		{
+			Path:        "/dev/urandom",
+			Type:        'c',
+			Major:       1,
+			Minor:       9,
+			Permissions: "rwm",
+			FileMode:    0666,
+		},
+		{
+			Path:        "/dev/random",
+			Type:        'c',
+			Major:       1,
+			Minor:       8,
+			Permissions: "rwm",
+			FileMode:    0666,
+		},
+	}
+	DefaultAllowedDevices = append([]*Device{
+		// allow mknod for any device
+		{
+			Type:        'c',
+			Major:       Wildcard,
+			Minor:       Wildcard,
+			Permissions: "m",
+		},
+		{
+			Type:        'b',
+			Major:       Wildcard,
+			Minor:       Wildcard,
+			Permissions: "m",
+		},
+
+		{
+			Path:        "/dev/console",
+			Type:        'c',
+			Major:       5,
+			Minor:       1,
+			Permissions: "rwm",
+		},
+		// /dev/pts/ - pts namespaces are "coming soon"
+		{
+			Path:        "",
+			Type:        'c',
+			Major:       136,
+			Minor:       Wildcard,
+			Permissions: "rwm",
+		},
+		{
+			Path:        "",
+			Type:        'c',
+			Major:       5,
+			Minor:       2,
+			Permissions: "rwm",
+		},
+
+		// tuntap
+		{
+			Path:        "",
+			Type:        'c',
+			Major:       10,
+			Minor:       200,
+			Permissions: "rwm",
+		},
+	}, DefaultSimpleDevices...)
+	DefaultAutoCreatedDevices = append([]*Device{}, DefaultSimpleDevices...)
+)

vendor/github.com/opencontainers/runc/libcontainer/configs/hugepage_limit.go

@@ -0,0 +1,9 @@
+package configs
+
+type HugepageLimit struct {
+	// which type of hugepage to limit.
+	Pagesize string `json:"page_size"`
+
+	// usage limit for hugepage.
+	Limit uint64 `json:"limit"`
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/intelrdt.go

@@ -0,0 +1,7 @@
+package configs
+
+type IntelRdt struct {
+	// The schema for L3 cache id and capacity bitmask (CBM)
+	// Format: "L3:<cache_id0>=<cbm0>;<cache_id1>=<cbm1>;..."
+	L3CacheSchema string `json:"l3_cache_schema,omitempty"`
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/interface_priority_map.go

@@ -0,0 +1,14 @@
+package configs
+
+import (
+	"fmt"
+)
+
+type IfPrioMap struct {
+	Interface string `json:"interface"`
+	Priority  int64  `json:"priority"`
+}
+
+func (i *IfPrioMap) CgroupString() string {
+	return fmt.Sprintf("%s %d", i.Interface, i.Priority)
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/mount.go

@@ -0,0 +1,39 @@
+package configs
+
+const (
+	// EXT_COPYUP is a directive to copy up the contents of a directory when
+	// a tmpfs is mounted over it.
+	EXT_COPYUP = 1 << iota
+)
+
+type Mount struct {
+	// Source path for the mount.
+	Source string `json:"source"`
+
+	// Destination path for the mount inside the container.
+	Destination string `json:"destination"`
+
+	// Device the mount is for.
+	Device string `json:"device"`
+
+	// Mount flags.
+	Flags int `json:"flags"`
+
+	// Propagation Flags
+	PropagationFlags []int `json:"propagation_flags"`
+
+	// Mount data applied to the mount.
+	Data string `json:"data"`
+
+	// Relabel source if set, "z" indicates shared, "Z" indicates unshared.
+	Relabel string `json:"relabel"`
+
+	// Extensions are additional flags that are specific to runc.
+	Extensions int `json:"extensions"`
+
+	// Optional Command to be run before Source is mounted.
+	PremountCmds []Command `json:"premount_cmds"`
+
+	// Optional Command to be run after Source is mounted.
+	PostmountCmds []Command `json:"postmount_cmds"`
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/namespaces.go

@@ -0,0 +1,5 @@
+package configs
+
+type NamespaceType string
+
+type Namespaces []Namespace

vendor/github.com/opencontainers/runc/libcontainer/configs/namespaces_linux.go

@@ -0,0 +1,122 @@
+package configs
+
+import (
+	"fmt"
+	"os"
+	"sync"
+)
+
+const (
+	NEWNET  NamespaceType = "NEWNET"
+	NEWPID  NamespaceType = "NEWPID"
+	NEWNS   NamespaceType = "NEWNS"
+	NEWUTS  NamespaceType = "NEWUTS"
+	NEWIPC  NamespaceType = "NEWIPC"
+	NEWUSER NamespaceType = "NEWUSER"
+)
+
+var (
+	nsLock              sync.Mutex
+	supportedNamespaces = make(map[NamespaceType]bool)
+)
+
+// NsName converts the namespace type to its filename
+func NsName(ns NamespaceType) string {
+	switch ns {
+	case NEWNET:
+		return "net"
+	case NEWNS:
+		return "mnt"
+	case NEWPID:
+		return "pid"
+	case NEWIPC:
+		return "ipc"
+	case NEWUSER:
+		return "user"
+	case NEWUTS:
+		return "uts"
+	}
+	return ""
+}
+
+// IsNamespaceSupported returns whether a namespace is available or
+// not
+func IsNamespaceSupported(ns NamespaceType) bool {
+	nsLock.Lock()
+	defer nsLock.Unlock()
+	supported, ok := supportedNamespaces[ns]
+	if ok {
+		return supported
+	}
+	nsFile := NsName(ns)
+	// if the namespace type is unknown, just return false
+	if nsFile == "" {
+		return false
+	}
+	_, err := os.Stat(fmt.Sprintf("/proc/self/ns/%s", nsFile))
+	// a namespace is supported if it exists and we have permissions to read it
+	supported = err == nil
+	supportedNamespaces[ns] = supported
+	return supported
+}
+
+func NamespaceTypes() []NamespaceType {
+	return []NamespaceType{
+		NEWUSER, // Keep user NS always first, don't move it.
+		NEWIPC,
+		NEWUTS,
+		NEWNET,
+		NEWPID,
+		NEWNS,
+	}
+}
+
+// Namespace defines configuration for each namespace.  It specifies an
+// alternate path that is able to be joined via setns.
+type Namespace struct {
+	Type NamespaceType `json:"type"`
+	Path string        `json:"path"`
+}
+
+func (n *Namespace) GetPath(pid int) string {
+	return fmt.Sprintf("/proc/%d/ns/%s", pid, NsName(n.Type))
+}
+
+func (n *Namespaces) Remove(t NamespaceType) bool {
+	i := n.index(t)
+	if i == -1 {
+		return false
+	}
+	*n = append((*n)[:i], (*n)[i+1:]...)
+	return true
+}
+
+func (n *Namespaces) Add(t NamespaceType, path string) {
+	i := n.index(t)
+	if i == -1 {
+		*n = append(*n, Namespace{Type: t, Path: path})
+		return
+	}
+	(*n)[i].Path = path
+}
+
+func (n *Namespaces) index(t NamespaceType) int {
+	for i, ns := range *n {
+		if ns.Type == t {
+			return i
+		}
+	}
+	return -1
+}
+
+func (n *Namespaces) Contains(t NamespaceType) bool {
+	return n.index(t) != -1
+}
+
+func (n *Namespaces) PathOf(t NamespaceType) string {
+	i := n.index(t)
+	if i == -1 {
+		return ""
+	}
+	return (*n)[i].Path
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/namespaces_syscall.go

@@ -0,0 +1,31 @@
+// +build linux
+
+package configs
+
+import "golang.org/x/sys/unix"
+
+func (n *Namespace) Syscall() int {
+	return namespaceInfo[n.Type]
+}
+
+var namespaceInfo = map[NamespaceType]int{
+	NEWNET:  unix.CLONE_NEWNET,
+	NEWNS:   unix.CLONE_NEWNS,
+	NEWUSER: unix.CLONE_NEWUSER,
+	NEWIPC:  unix.CLONE_NEWIPC,
+	NEWUTS:  unix.CLONE_NEWUTS,
+	NEWPID:  unix.CLONE_NEWPID,
+}
+
+// CloneFlags parses the container's Namespaces options to set the correct
+// flags on clone, unshare. This function returns flags only for new namespaces.
+func (n *Namespaces) CloneFlags() uintptr {
+	var flag int
+	for _, v := range *n {
+		if v.Path != "" {
+			continue
+		}
+		flag |= namespaceInfo[v.Type]
+	}
+	return uintptr(flag)
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/namespaces_syscall_unsupported.go

@@ -0,0 +1,13 @@
+// +build !linux,!windows
+
+package configs
+
+func (n *Namespace) Syscall() int {
+	panic("No namespace syscall support")
+}
+
+// CloneFlags parses the container's Namespaces options to set the correct
+// flags on clone, unshare. This function returns flags only for new namespaces.
+func (n *Namespaces) CloneFlags() uintptr {
+	panic("No namespace syscall support")
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/namespaces_unsupported.go

@@ -0,0 +1,8 @@
+// +build !linux
+
+package configs
+
+// Namespace defines configuration for each namespace.  It specifies an
+// alternate path that is able to be joined via setns.
+type Namespace struct {
+}

vendor/github.com/opencontainers/runc/libcontainer/configs/network.go

@@ -0,0 +1,72 @@
+package configs
+
+// Network defines configuration for a container's networking stack
+//
+// The network configuration can be omitted from a container causing the
+// container to be setup with the host's networking stack
+type Network struct {
+	// Type sets the networks type, commonly veth and loopback
+	Type string `json:"type"`
+
+	// Name of the network interface
+	Name string `json:"name"`
+
+	// The bridge to use.
+	Bridge string `json:"bridge"`
+
+	// MacAddress contains the MAC address to set on the network interface
+	MacAddress string `json:"mac_address"`
+
+	// Address contains the IPv4 and mask to set on the network interface
+	Address string `json:"address"`
+
+	// Gateway sets the gateway address that is used as the default for the interface
+	Gateway string `json:"gateway"`
+
+	// IPv6Address contains the IPv6 and mask to set on the network interface
+	IPv6Address string `json:"ipv6_address"`
+
+	// IPv6Gateway sets the ipv6 gateway address that is used as the default for the interface
+	IPv6Gateway string `json:"ipv6_gateway"`
+
+	// Mtu sets the mtu value for the interface and will be mirrored on both the host and
+	// container's interfaces if a pair is created, specifically in the case of type veth
+	// Note: This does not apply to loopback interfaces.
+	Mtu int `json:"mtu"`
+
+	// TxQueueLen sets the tx_queuelen value for the interface and will be mirrored on both the host and
+	// container's interfaces if a pair is created, specifically in the case of type veth
+	// Note: This does not apply to loopback interfaces.
+	TxQueueLen int `json:"txqueuelen"`
+
+	// HostInterfaceName is a unique name of a veth pair that resides on in the host interface of the
+	// container.
+	HostInterfaceName string `json:"host_interface_name"`
+
+	// HairpinMode specifies if hairpin NAT should be enabled on the virtual interface
+	// bridge port in the case of type veth
+	// Note: This is unsupported on some systems.
+	// Note: This does not apply to loopback interfaces.
+	HairpinMode bool `json:"hairpin_mode"`
+}
+
+// Routes can be specified to create entries in the route table as the container is started
+//
+// All of destination, source, and gateway should be either IPv4 or IPv6.
+// One of the three options must be present, and omitted entries will use their
+// IP family default for the route table.  For IPv4 for example, setting the
+// gateway to 1.2.3.4 and the interface to eth0 will set up a standard
+// destination of 0.0.0.0(or *) when viewed in the route table.
+type Route struct {
+	// Sets the destination and mask, should be a CIDR.  Accepts IPv4 and IPv6
+	Destination string `json:"destination"`
+
+	// Sets the source and mask, should be a CIDR.  Accepts IPv4 and IPv6
+	Source string `json:"source"`
+
+	// Sets the gateway.  Accepts IPv4 and IPv6
+	Gateway string `json:"gateway"`
+
+	// The device to set this route up for, for example: eth0
+	InterfaceName string `json:"interface_name"`
+}

vendor/github.com/opencontainers/runc/libcontainer/devices/devices.go

@@ -0,0 +1,104 @@
+package devices
+
+import (
+	"errors"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"github.com/opencontainers/runc/libcontainer/configs"
+
+	"golang.org/x/sys/unix"
+)
+
+var (
+	ErrNotADevice = errors.New("not a device node")
+)
+
+// Testing dependencies
+var (
+	unixLstat     = unix.Lstat
+	ioutilReadDir = ioutil.ReadDir
+)
+
+// Given the path to a device and its cgroup_permissions(which cannot be easily queried) look up the information about a linux device and return that information as a Device struct.
+func DeviceFromPath(path, permissions string) (*configs.Device, error) {
+	var stat unix.Stat_t
+	err := unixLstat(path, &stat)
+	if err != nil {
+		return nil, err
+	}
+
+	var (
+		devNumber = stat.Rdev
+		major     = unix.Major(devNumber)
+	)
+	if major == 0 {
+		return nil, ErrNotADevice
+	}
+
+	var (
+		devType rune
+		mode    = stat.Mode
+	)
+	switch {
+	case mode&unix.S_IFBLK == unix.S_IFBLK:
+		devType = 'b'
+	case mode&unix.S_IFCHR == unix.S_IFCHR:
+		devType = 'c'
+	}
+	return &configs.Device{
+		Type:        devType,
+		Path:        path,
+		Major:       int64(major),
+		Minor:       int64(unix.Minor(devNumber)),
+		Permissions: permissions,
+		FileMode:    os.FileMode(mode),
+		Uid:         stat.Uid,
+		Gid:         stat.Gid,
+	}, nil
+}
+
+func HostDevices() ([]*configs.Device, error) {
+	return getDevices("/dev")
+}
+
+func getDevices(path string) ([]*configs.Device, error) {
+	files, err := ioutilReadDir(path)
+	if err != nil {
+		return nil, err
+	}
+	out := []*configs.Device{}
+	for _, f := range files {
+		switch {
+		case f.IsDir():
+			switch f.Name() {
+			// ".lxc" & ".lxd-mounts" added to address https://github.com/lxc/lxd/issues/2825
+			case "pts", "shm", "fd", "mqueue", ".lxc", ".lxd-mounts":
+				continue
+			default:
+				sub, err := getDevices(filepath.Join(path, f.Name()))
+				if err != nil {
+					return nil, err
+				}
+
+				out = append(out, sub...)
+				continue
+			}
+		case f.Name() == "console":
+			continue
+		}
+		device, err := DeviceFromPath(filepath.Join(path, f.Name()), "rwm")
+		if err != nil {
+			if err == ErrNotADevice {
+				continue
+			}
+			if os.IsNotExist(err) {
+				continue
+			}
+			return nil, err
+		}
+		out = append(out, device)
+	}
+	return out, nil
+}

vendor/github.com/opencontainers/runc/libcontainer/seccomp/config.go

@@ -0,0 +1,76 @@
+package seccomp
+
+import (
+	"fmt"
+
+	"github.com/opencontainers/runc/libcontainer/configs"
+)
+
+var operators = map[string]configs.Operator{
+	"SCMP_CMP_NE":        configs.NotEqualTo,
+	"SCMP_CMP_LT":        configs.LessThan,
+	"SCMP_CMP_LE":        configs.LessThanOrEqualTo,
+	"SCMP_CMP_EQ":        configs.EqualTo,
+	"SCMP_CMP_GE":        configs.GreaterThanOrEqualTo,
+	"SCMP_CMP_GT":        configs.GreaterThan,
+	"SCMP_CMP_MASKED_EQ": configs.MaskEqualTo,
+}
+
+var actions = map[string]configs.Action{
+	"SCMP_ACT_KILL":  configs.Kill,
+	"SCMP_ACT_ERRNO": configs.Errno,
+	"SCMP_ACT_TRAP":  configs.Trap,
+	"SCMP_ACT_ALLOW": configs.Allow,
+	"SCMP_ACT_TRACE": configs.Trace,
+}
+
+var archs = map[string]string{
+	"SCMP_ARCH_X86":         "x86",
+	"SCMP_ARCH_X86_64":      "amd64",
+	"SCMP_ARCH_X32":         "x32",
+	"SCMP_ARCH_ARM":         "arm",
+	"SCMP_ARCH_AARCH64":     "arm64",
+	"SCMP_ARCH_MIPS":        "mips",
+	"SCMP_ARCH_MIPS64":      "mips64",
+	"SCMP_ARCH_MIPS64N32":   "mips64n32",
+	"SCMP_ARCH_MIPSEL":      "mipsel",
+	"SCMP_ARCH_MIPSEL64":    "mipsel64",
+	"SCMP_ARCH_MIPSEL64N32": "mipsel64n32",
+	"SCMP_ARCH_PPC":         "ppc",
+	"SCMP_ARCH_PPC64":       "ppc64",
+	"SCMP_ARCH_PPC64LE":     "ppc64le",
+	"SCMP_ARCH_S390":        "s390",
+	"SCMP_ARCH_S390X":       "s390x",
+}
+
+// ConvertStringToOperator converts a string into a Seccomp comparison operator.
+// Comparison operators use the names they are assigned by Libseccomp's header.
+// Attempting to convert a string that is not a valid operator results in an
+// error.
+func ConvertStringToOperator(in string) (configs.Operator, error) {
+	if op, ok := operators[in]; ok == true {
+		return op, nil
+	}
+	return 0, fmt.Errorf("string %s is not a valid operator for seccomp", in)
+}
+
+// ConvertStringToAction converts a string into a Seccomp rule match action.
+// Actions use the names they are assigned in Libseccomp's header, though some
+// (notable, SCMP_ACT_TRACE) are not available in this implementation and will
+// return errors.
+// Attempting to convert a string that is not a valid action results in an
+// error.
+func ConvertStringToAction(in string) (configs.Action, error) {
+	if act, ok := actions[in]; ok == true {
+		return act, nil
+	}
+	return 0, fmt.Errorf("string %s is not a valid action for seccomp", in)
+}
+
+// ConvertStringToArch converts a string into a Seccomp comparison arch.
+func ConvertStringToArch(in string) (string, error) {
+	if arch, ok := archs[in]; ok == true {
+		return arch, nil
+	}
+	return "", fmt.Errorf("string %s is not a valid arch for seccomp", in)
+}

vendor/github.com/opencontainers/runc/libcontainer/seccomp/seccomp_linux.go

@@ -0,0 +1,258 @@
+// +build linux,cgo,seccomp
+
+package seccomp
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/opencontainers/runc/libcontainer/configs"
+	libseccomp "github.com/seccomp/libseccomp-golang"
+
+	"golang.org/x/sys/unix"
+)
+
+var (
+	actAllow = libseccomp.ActAllow
+	actTrap  = libseccomp.ActTrap
+	actKill  = libseccomp.ActKill
+	actTrace = libseccomp.ActTrace.SetReturnCode(int16(unix.EPERM))
+	actErrno = libseccomp.ActErrno.SetReturnCode(int16(unix.EPERM))
+)
+
+const (
+	// Linux system calls can have at most 6 arguments
+	syscallMaxArguments int = 6
+)
+
+// Filters given syscalls in a container, preventing them from being used
+// Started in the container init process, and carried over to all child processes
+// Setns calls, however, require a separate invocation, as they are not children
+// of the init until they join the namespace
+func InitSeccomp(config *configs.Seccomp) error {
+	if config == nil {
+		return fmt.Errorf("cannot initialize Seccomp - nil config passed")
+	}
+
+	defaultAction, err := getAction(config.DefaultAction)
+	if err != nil {
+		return fmt.Errorf("error initializing seccomp - invalid default action")
+	}
+
+	filter, err := libseccomp.NewFilter(defaultAction)
+	if err != nil {
+		return fmt.Errorf("error creating filter: %s", err)
+	}
+
+	// Add extra architectures
+	for _, arch := range config.Architectures {
+		scmpArch, err := libseccomp.GetArchFromString(arch)
+		if err != nil {
+			return fmt.Errorf("error validating Seccomp architecture: %s", err)
+		}
+
+		if err := filter.AddArch(scmpArch); err != nil {
+			return fmt.Errorf("error adding architecture to seccomp filter: %s", err)
+		}
+	}
+
+	// Unset no new privs bit
+	if err := filter.SetNoNewPrivsBit(false); err != nil {
+		return fmt.Errorf("error setting no new privileges: %s", err)
+	}
+
+	// Add a rule for each syscall
+	for _, call := range config.Syscalls {
+		if call == nil {
+			return fmt.Errorf("encountered nil syscall while initializing Seccomp")
+		}
+
+		if err = matchCall(filter, call); err != nil {
+			return err
+		}
+	}
+
+	if err = filter.Load(); err != nil {
+		return fmt.Errorf("error loading seccomp filter into kernel: %s", err)
+	}
+
+	return nil
+}
+
+// IsEnabled returns if the kernel has been configured to support seccomp.
+func IsEnabled() bool {
+	// Try to read from /proc/self/status for kernels > 3.8
+	s, err := parseStatusFile("/proc/self/status")
+	if err != nil {
+		// Check if Seccomp is supported, via CONFIG_SECCOMP.
+		if err := unix.Prctl(unix.PR_GET_SECCOMP, 0, 0, 0, 0); err != unix.EINVAL {
+			// Make sure the kernel has CONFIG_SECCOMP_FILTER.
+			if err := unix.Prctl(unix.PR_SET_SECCOMP, unix.SECCOMP_MODE_FILTER, 0, 0, 0); err != unix.EINVAL {
+				return true
+			}
+		}
+		return false
+	}
+	_, ok := s["Seccomp"]
+	return ok
+}
+
+// Convert Libcontainer Action to Libseccomp ScmpAction
+func getAction(act configs.Action) (libseccomp.ScmpAction, error) {
+	switch act {
+	case configs.Kill:
+		return actKill, nil
+	case configs.Errno:
+		return actErrno, nil
+	case configs.Trap:
+		return actTrap, nil
+	case configs.Allow:
+		return actAllow, nil
+	case configs.Trace:
+		return actTrace, nil
+	default:
+		return libseccomp.ActInvalid, fmt.Errorf("invalid action, cannot use in rule")
+	}
+}
+
+// Convert Libcontainer Operator to Libseccomp ScmpCompareOp
+func getOperator(op configs.Operator) (libseccomp.ScmpCompareOp, error) {
+	switch op {
+	case configs.EqualTo:
+		return libseccomp.CompareEqual, nil
+	case configs.NotEqualTo:
+		return libseccomp.CompareNotEqual, nil
+	case configs.GreaterThan:
+		return libseccomp.CompareGreater, nil
+	case configs.GreaterThanOrEqualTo:
+		return libseccomp.CompareGreaterEqual, nil
+	case configs.LessThan:
+		return libseccomp.CompareLess, nil
+	case configs.LessThanOrEqualTo:
+		return libseccomp.CompareLessOrEqual, nil
+	case configs.MaskEqualTo:
+		return libseccomp.CompareMaskedEqual, nil
+	default:
+		return libseccomp.CompareInvalid, fmt.Errorf("invalid operator, cannot use in rule")
+	}
+}
+
+// Convert Libcontainer Arg to Libseccomp ScmpCondition
+func getCondition(arg *configs.Arg) (libseccomp.ScmpCondition, error) {
+	cond := libseccomp.ScmpCondition{}
+
+	if arg == nil {
+		return cond, fmt.Errorf("cannot convert nil to syscall condition")
+	}
+
+	op, err := getOperator(arg.Op)
+	if err != nil {
+		return cond, err
+	}
+
+	return libseccomp.MakeCondition(arg.Index, op, arg.Value, arg.ValueTwo)
+}
+
+// Add a rule to match a single syscall
+func matchCall(filter *libseccomp.ScmpFilter, call *configs.Syscall) error {
+	if call == nil || filter == nil {
+		return fmt.Errorf("cannot use nil as syscall to block")
+	}
+
+	if len(call.Name) == 0 {
+		return fmt.Errorf("empty string is not a valid syscall")
+	}
+
+	// If we can't resolve the syscall, assume it's not supported on this kernel
+	// Ignore it, don't error out
+	callNum, err := libseccomp.GetSyscallFromName(call.Name)
+	if err != nil {
+		return nil
+	}
+
+	// Convert the call's action to the libseccomp equivalent
+	callAct, err := getAction(call.Action)
+	if err != nil {
+		return fmt.Errorf("action in seccomp profile is invalid: %s", err)
+	}
+
+	// Unconditional match - just add the rule
+	if len(call.Args) == 0 {
+		if err = filter.AddRule(callNum, callAct); err != nil {
+			return fmt.Errorf("error adding seccomp filter rule for syscall %s: %s", call.Name, err)
+		}
+	} else {
+		// If two or more arguments have the same condition,
+		// Revert to old behavior, adding each condition as a separate rule
+		argCounts := make([]uint, syscallMaxArguments)
+		conditions := []libseccomp.ScmpCondition{}
+
+		for _, cond := range call.Args {
+			newCond, err := getCondition(cond)
+			if err != nil {
+				return fmt.Errorf("error creating seccomp syscall condition for syscall %s: %s", call.Name, err)
+			}
+
+			argCounts[cond.Index] += 1
+
+			conditions = append(conditions, newCond)
+		}
+
+		hasMultipleArgs := false
+		for _, count := range argCounts {
+			if count > 1 {
+				hasMultipleArgs = true
+				break
+			}
+		}
+
+		if hasMultipleArgs {
+			// Revert to old behavior
+			// Add each condition attached to a separate rule
+			for _, cond := range conditions {
+				condArr := []libseccomp.ScmpCondition{cond}
+
+				if err = filter.AddRuleConditional(callNum, callAct, condArr); err != nil {
+					return fmt.Errorf("error adding seccomp rule for syscall %s: %s", call.Name, err)
+				}
+			}
+		} else {
+			// No conditions share same argument
+			// Use new, proper behavior
+			if err = filter.AddRuleConditional(callNum, callAct, conditions); err != nil {
+				return fmt.Errorf("error adding seccomp rule for syscall %s: %s", call.Name, err)
+			}
+		}
+	}
+
+	return nil
+}
+
+func parseStatusFile(path string) (map[string]string, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	s := bufio.NewScanner(f)
+	status := make(map[string]string)
+
+	for s.Scan() {
+		text := s.Text()
+		parts := strings.Split(text, ":")
+
+		if len(parts) <= 1 {
+			continue
+		}
+
+		status[parts[0]] = parts[1]
+	}
+	if err := s.Err(); err != nil {
+		return nil, err
+	}
+
+	return status, nil
+}

vendor/github.com/opencontainers/runc/libcontainer/seccomp/seccomp_unsupported.go

@@ -0,0 +1,24 @@
+// +build !linux !cgo !seccomp
+
+package seccomp
+
+import (
+	"errors"
+
+	"github.com/opencontainers/runc/libcontainer/configs"
+)
+
+var ErrSeccompNotEnabled = errors.New("seccomp: config provided but seccomp not supported")
+
+// InitSeccomp does nothing because seccomp is not supported.
+func InitSeccomp(config *configs.Seccomp) error {
+	if config != nil {
+		return ErrSeccompNotEnabled
+	}
+	return nil
+}
+
+// IsEnabled returns false, because it is not supported.
+func IsEnabled() bool {
+	return false
+}

vendor/github.com/opencontainers/runtime-tools/LICENSE

@@ -0,0 +1,191 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
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+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
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+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
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+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
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+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   Copyright 2015 The Linux Foundation.
+
+   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.

vendor/github.com/opencontainers/runtime-tools/README.md

@@ -0,0 +1,84 @@
+# oci-runtime-tool [![Build Status](https://travis-ci.org/opencontainers/runtime-tools.svg?branch=master)](https://travis-ci.org/opencontainers/runtime-tools) [![Go Report Card](https://goreportcard.com/badge/github.com/opencontainers/runtime-tools)](https://goreportcard.com/report/github.com/opencontainers/runtime-tools)
+
+oci-runtime-tool is a collection of tools for working with the [OCI runtime specification][runtime-spec].
+To build from source code, runtime-tools requires Go 1.7.x or above.
+
+## Generating an OCI runtime spec configuration files
+
+[`oci-runtime-tool generate`][generate.1] generates [configuration JSON][config.json] for an [OCI bundle][bundle].
+[OCI-compatible runtimes][runtime-spec] like [runC][] expect to read the configuration from `config.json`.
+
+```sh
+$ oci-runtime-tool generate --output config.json
+$ cat config.json
+{
+        "ociVersion": "0.5.0",
+        …
+}
+```
+
+## Validating an OCI bundle
+
+[`oci-runtime-tool validate`][validate.1] validates an OCI bundle.
+The error message will be printed if the OCI bundle failed the validation procedure.
+
+```sh
+$ oci-runtime-tool generate
+$ oci-runtime-tool validate
+INFO[0000] Bundle validation succeeded.
+```
+
+## Testing OCI runtimes
+
+```sh
+$ sudo make RUNTIME=runc localvalidation
+RUNTIME=runc go test -tags ""  -v github.com/opencontainers/runtime-tools/validation
+=== RUN   TestValidateBasic
+TAP version 13
+ok 1 - root filesystem
+ok 2 - hostname
+ok 3 - mounts
+ok 4 - capabilities
+ok 5 - default symlinks
+ok 6 - default devices
+ok 7 - linux devices
+ok 8 - linux process
+ok 9 - masked paths
+ok 10 - oom score adj
+ok 11 - read only paths
+ok 12 - rlimits
+ok 13 - sysctls
+ok 14 - uid mappings
+ok 15 - gid mappings
+1..15
+--- PASS: TestValidateBasic (0.08s)
+=== RUN   TestValidateSysctls
+TAP version 13
+ok 1 - root filesystem
+ok 2 - hostname
+ok 3 - mounts
+ok 4 - capabilities
+ok 5 - default symlinks
+ok 6 - default devices
+ok 7 - linux devices
+ok 8 - linux process
+ok 9 - masked paths
+ok 10 - oom score adj
+ok 11 - read only paths
+ok 12 - rlimits
+ok 13 - sysctls
+ok 14 - uid mappings
+ok 15 - gid mappings
+1..15
+--- PASS: TestValidateSysctls (0.20s)
+PASS
+ok      github.com/opencontainers/runtime-tools/validation      0.281s
+```
+
+[bundle]: https://github.com/opencontainers/runtime-spec/blob/master/bundle.md
+[config.json]: https://github.com/opencontainers/runtime-spec/blob/master/config.md
+[runC]: https://github.com/opencontainers/runc
+[runtime-spec]: https://github.com/opencontainers/runtime-spec
+
+[generate.1]: man/oci-runtime-tool-generate.1.md
+[validate.1]: man/oci-runtime-tool-validate.1.md

vendor/github.com/opencontainers/runtime-tools/error/error.go

@@ -0,0 +1,92 @@
+// Package error implements generic tooling for tracking RFC 2119
+// violations and linking back to the appropriate specification section.
+package error
+
+import (
+	"fmt"
+	"strings"
+)
+
+// Level represents the RFC 2119 compliance levels
+type Level int
+
+const (
+	// MAY-level
+
+	// May represents 'MAY' in RFC 2119.
+	May Level = iota
+	// Optional represents 'OPTIONAL' in RFC 2119.
+	Optional
+
+	// SHOULD-level
+
+	// Should represents 'SHOULD' in RFC 2119.
+	Should
+	// ShouldNot represents 'SHOULD NOT' in RFC 2119.
+	ShouldNot
+	// Recommended represents 'RECOMMENDED' in RFC 2119.
+	Recommended
+	// NotRecommended represents 'NOT RECOMMENDED' in RFC 2119.
+	NotRecommended
+
+	// MUST-level
+
+	// Must represents 'MUST' in RFC 2119
+	Must
+	// MustNot represents 'MUST NOT' in RFC 2119.
+	MustNot
+	// Shall represents 'SHALL' in RFC 2119.
+	Shall
+	// ShallNot represents 'SHALL NOT' in RFC 2119.
+	ShallNot
+	// Required represents 'REQUIRED' in RFC 2119.
+	Required
+)
+
+// Error represents an error with compliance level and specification reference.
+type Error struct {
+	// Level represents the RFC 2119 compliance level.
+	Level Level
+
+	// Reference is a URL for the violated specification requirement.
+	Reference string
+
+	// Err holds additional details about the violation.
+	Err error
+}
+
+// ParseLevel takes a string level and returns the RFC 2119 compliance level constant.
+func ParseLevel(level string) (Level, error) {
+	switch strings.ToUpper(level) {
+	case "MAY":
+		fallthrough
+	case "OPTIONAL":
+		return May, nil
+	case "SHOULD":
+		fallthrough
+	case "SHOULDNOT":
+		fallthrough
+	case "RECOMMENDED":
+		fallthrough
+	case "NOTRECOMMENDED":
+		return Should, nil
+	case "MUST":
+		fallthrough
+	case "MUSTNOT":
+		fallthrough
+	case "SHALL":
+		fallthrough
+	case "SHALLNOT":
+		fallthrough
+	case "REQUIRED":
+		return Must, nil
+	}
+
+	var l Level
+	return l, fmt.Errorf("%q is not a valid compliance level", level)
+}
+
+// Error returns the error message with specification reference.
+func (err *Error) Error() string {
+	return fmt.Sprintf("%s\nRefer to: %s", err.Err.Error(), err.Reference)
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/consts.go

@@ -0,0 +1,12 @@
+package seccomp
+
+const (
+	seccompOverwrite = "overwrite"
+	seccompAppend    = "append"
+	nothing          = "nothing"
+	kill             = "kill"
+	trap             = "trap"
+	trace            = "trace"
+	allow            = "allow"
+	errno            = "errno"
+)

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/parse_action.go

@@ -0,0 +1,135 @@
+package seccomp
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// SyscallOpts contain options for parsing syscall rules
+type SyscallOpts struct {
+	Action   string
+	Syscall  string
+	Index    string
+	Value    string
+	ValueTwo string
+	Operator string
+}
+
+// ParseSyscallFlag takes a SyscallOpts struct and the seccomp configuration
+// and sets the new syscall rule accordingly
+func ParseSyscallFlag(args SyscallOpts, config *rspec.LinuxSeccomp) error {
+	var arguments []string
+	if args.Index != "" && args.Value != "" && args.ValueTwo != "" && args.Operator != "" {
+		arguments = []string{args.Action, args.Syscall, args.Index, args.Value,
+			args.ValueTwo, args.Operator}
+	} else {
+		arguments = []string{args.Action, args.Syscall}
+	}
+
+	action, _ := parseAction(arguments[0])
+	if action == config.DefaultAction && args.argsAreEmpty() {
+		// default already set, no need to make changes
+		return nil
+	}
+
+	var newSyscall rspec.LinuxSyscall
+	numOfArgs := len(arguments)
+	if numOfArgs == 6 || numOfArgs == 2 {
+		argStruct, err := parseArguments(arguments[1:])
+		if err != nil {
+			return err
+		}
+		newSyscall = newSyscallStruct(arguments[1], action, argStruct)
+	} else {
+		return fmt.Errorf("incorrect number of arguments to ParseSyscall: %d", numOfArgs)
+	}
+
+	descison, err := decideCourseOfAction(&newSyscall, config.Syscalls)
+	if err != nil {
+		return err
+	}
+	delimDescison := strings.Split(descison, ":")
+
+	if delimDescison[0] == seccompAppend {
+		config.Syscalls = append(config.Syscalls, newSyscall)
+	}
+
+	if delimDescison[0] == seccompOverwrite {
+		indexForOverwrite, err := strconv.ParseInt(delimDescison[1], 10, 32)
+		if err != nil {
+			return err
+		}
+		config.Syscalls[indexForOverwrite] = newSyscall
+	}
+
+	return nil
+}
+
+var actions = map[string]rspec.LinuxSeccompAction{
+	"allow": rspec.ActAllow,
+	"errno": rspec.ActErrno,
+	"kill":  rspec.ActKill,
+	"trace": rspec.ActTrace,
+	"trap":  rspec.ActTrap,
+}
+
+// Take passed action, return the SCMP_ACT_<ACTION> version of it
+func parseAction(action string) (rspec.LinuxSeccompAction, error) {
+	a, ok := actions[action]
+	if !ok {
+		return "", fmt.Errorf("unrecognized action: %s", action)
+	}
+	return a, nil
+}
+
+// ParseDefaultAction sets the default action of the seccomp configuration
+// and then removes any rules that were already specified with this action
+func ParseDefaultAction(action string, config *rspec.LinuxSeccomp) error {
+	if action == "" {
+		return nil
+	}
+
+	defaultAction, err := parseAction(action)
+	if err != nil {
+		return err
+	}
+	config.DefaultAction = defaultAction
+	err = RemoveAllMatchingRules(config, defaultAction)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// ParseDefaultActionForce simply sets the default action of the seccomp configuration
+func ParseDefaultActionForce(action string, config *rspec.LinuxSeccomp) error {
+	if action == "" {
+		return nil
+	}
+
+	defaultAction, err := parseAction(action)
+	if err != nil {
+		return err
+	}
+	config.DefaultAction = defaultAction
+	return nil
+}
+
+func newSyscallStruct(name string, action rspec.LinuxSeccompAction, args []rspec.LinuxSeccompArg) rspec.LinuxSyscall {
+	syscallStruct := rspec.LinuxSyscall{
+		Names:  []string{name},
+		Action: action,
+		Args:   args,
+	}
+	return syscallStruct
+}
+
+func (s SyscallOpts) argsAreEmpty() bool {
+	return (s.Index == "" &&
+		s.Value == "" &&
+		s.ValueTwo == "" &&
+		s.Operator == "")
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/parse_architecture.go

@@ -0,0 +1,55 @@
+package seccomp
+
+import (
+	"fmt"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// ParseArchitectureFlag takes the raw string passed with the --arch flag, parses it
+// and updates the Seccomp config accordingly
+func ParseArchitectureFlag(architectureArg string, config *rspec.LinuxSeccomp) error {
+	correctedArch, err := parseArch(architectureArg)
+	if err != nil {
+		return err
+	}
+
+	shouldAppend := true
+	for _, alreadySpecified := range config.Architectures {
+		if correctedArch == alreadySpecified {
+			shouldAppend = false
+		}
+	}
+	if shouldAppend {
+		config.Architectures = append(config.Architectures, correctedArch)
+	}
+	return nil
+}
+
+func parseArch(arch string) (rspec.Arch, error) {
+	arches := map[string]rspec.Arch{
+		"x86":         rspec.ArchX86,
+		"amd64":       rspec.ArchX86_64,
+		"x32":         rspec.ArchX32,
+		"arm":         rspec.ArchARM,
+		"arm64":       rspec.ArchAARCH64,
+		"mips":        rspec.ArchMIPS,
+		"mips64":      rspec.ArchMIPS64,
+		"mips64n32":   rspec.ArchMIPS64N32,
+		"mipsel":      rspec.ArchMIPSEL,
+		"mipsel64":    rspec.ArchMIPSEL64,
+		"mipsel64n32": rspec.ArchMIPSEL64N32,
+		"parisc":      rspec.ArchPARISC,
+		"parisc64":    rspec.ArchPARISC64,
+		"ppc":         rspec.ArchPPC,
+		"ppc64":       rspec.ArchPPC64,
+		"ppc64le":     rspec.ArchPPC64LE,
+		"s390":        rspec.ArchS390,
+		"s390x":       rspec.ArchS390X,
+	}
+	a, ok := arches[arch]
+	if !ok {
+		return "", fmt.Errorf("unrecognized architecture: %s", arch)
+	}
+	return a, nil
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/parse_arguments.go

@@ -0,0 +1,73 @@
+package seccomp
+
+import (
+	"fmt"
+	"strconv"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// parseArguments takes a list of arguments (delimArgs). It parses and fills out
+// the argument information and returns a slice of arg structs
+func parseArguments(delimArgs []string) ([]rspec.LinuxSeccompArg, error) {
+	nilArgSlice := []rspec.LinuxSeccompArg{}
+	numberOfArgs := len(delimArgs)
+
+	// No parameters passed with syscall
+	if numberOfArgs == 1 {
+		return nilArgSlice, nil
+	}
+
+	// Correct number of parameters passed with syscall
+	if numberOfArgs == 5 {
+		syscallIndex, err := strconv.ParseUint(delimArgs[1], 10, 0)
+		if err != nil {
+			return nilArgSlice, err
+		}
+
+		syscallValue, err := strconv.ParseUint(delimArgs[2], 10, 64)
+		if err != nil {
+			return nilArgSlice, err
+		}
+
+		syscallValueTwo, err := strconv.ParseUint(delimArgs[3], 10, 64)
+		if err != nil {
+			return nilArgSlice, err
+		}
+
+		syscallOp, err := parseOperator(delimArgs[4])
+		if err != nil {
+			return nilArgSlice, err
+		}
+
+		argStruct := rspec.LinuxSeccompArg{
+			Index:    uint(syscallIndex),
+			Value:    syscallValue,
+			ValueTwo: syscallValueTwo,
+			Op:       syscallOp,
+		}
+
+		argSlice := []rspec.LinuxSeccompArg{}
+		argSlice = append(argSlice, argStruct)
+		return argSlice, nil
+	}
+
+	return nilArgSlice, fmt.Errorf("incorrect number of arguments passed with syscall: %d", numberOfArgs)
+}
+
+func parseOperator(operator string) (rspec.LinuxSeccompOperator, error) {
+	operators := map[string]rspec.LinuxSeccompOperator{
+		"NE": rspec.OpNotEqual,
+		"LT": rspec.OpLessThan,
+		"LE": rspec.OpLessEqual,
+		"EQ": rspec.OpEqualTo,
+		"GE": rspec.OpGreaterEqual,
+		"GT": rspec.OpGreaterThan,
+		"ME": rspec.OpMaskedEqual,
+	}
+	o, ok := operators[operator]
+	if !ok {
+		return "", fmt.Errorf("unrecognized operator: %s", operator)
+	}
+	return o, nil
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/parse_remove.go

@@ -0,0 +1,52 @@
+package seccomp
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// RemoveAction takes the argument string that was passed with the --remove flag,
+// parses it, and updates the Seccomp config accordingly
+func RemoveAction(arguments string, config *rspec.LinuxSeccomp) error {
+	if config == nil {
+		return fmt.Errorf("Cannot remove action from nil Seccomp pointer")
+	}
+
+	syscallsToRemove := strings.Split(arguments, ",")
+
+	for counter, syscallStruct := range config.Syscalls {
+		if reflect.DeepEqual(syscallsToRemove, syscallStruct.Names) {
+			config.Syscalls = append(config.Syscalls[:counter], config.Syscalls[counter+1:]...)
+		}
+	}
+
+	return nil
+}
+
+// RemoveAllSeccompRules removes all seccomp syscall rules
+func RemoveAllSeccompRules(config *rspec.LinuxSeccomp) error {
+	if config == nil {
+		return fmt.Errorf("Cannot remove action from nil Seccomp pointer")
+	}
+	newSyscallSlice := []rspec.LinuxSyscall{}
+	config.Syscalls = newSyscallSlice
+	return nil
+}
+
+// RemoveAllMatchingRules will remove any syscall rules that match the specified action
+func RemoveAllMatchingRules(config *rspec.LinuxSeccomp, seccompAction rspec.LinuxSeccompAction) error {
+	if config == nil {
+		return fmt.Errorf("Cannot remove action from nil Seccomp pointer")
+	}
+
+	for _, syscall := range config.Syscalls {
+		if reflect.DeepEqual(syscall.Action, seccompAction) {
+			RemoveAction(strings.Join(syscall.Names, ","), config)
+		}
+	}
+
+	return nil
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/seccomp_default.go

@@ -0,0 +1,577 @@
+package seccomp
+
+import (
+	"runtime"
+	"syscall"
+
+	"github.com/opencontainers/runtime-spec/specs-go"
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+func arches() []rspec.Arch {
+	native := runtime.GOARCH
+
+	switch native {
+	case "amd64":
+		return []rspec.Arch{rspec.ArchX86_64, rspec.ArchX86, rspec.ArchX32}
+	case "arm64":
+		return []rspec.Arch{rspec.ArchARM, rspec.ArchAARCH64}
+	case "mips64":
+		return []rspec.Arch{rspec.ArchMIPS, rspec.ArchMIPS64, rspec.ArchMIPS64N32}
+	case "mips64n32":
+		return []rspec.Arch{rspec.ArchMIPS, rspec.ArchMIPS64, rspec.ArchMIPS64N32}
+	case "mipsel64":
+		return []rspec.Arch{rspec.ArchMIPSEL, rspec.ArchMIPSEL64, rspec.ArchMIPSEL64N32}
+	case "mipsel64n32":
+		return []rspec.Arch{rspec.ArchMIPSEL, rspec.ArchMIPSEL64, rspec.ArchMIPSEL64N32}
+	case "s390x":
+		return []rspec.Arch{rspec.ArchS390, rspec.ArchS390X}
+	default:
+		return []rspec.Arch{}
+	}
+}
+
+// DefaultProfile defines the whitelist for the default seccomp profile.
+func DefaultProfile(rs *specs.Spec) *rspec.LinuxSeccomp {
+
+	syscalls := []rspec.LinuxSyscall{
+		{
+			Names: []string{
+				"accept",
+				"accept4",
+				"access",
+				"alarm",
+				"bind",
+				"brk",
+				"capget",
+				"capset",
+				"chdir",
+				"chmod",
+				"chown",
+				"chown32",
+				"clock_getres",
+				"clock_gettime",
+				"clock_nanosleep",
+				"close",
+				"connect",
+				"copy_file_range",
+				"creat",
+				"dup",
+				"dup2",
+				"dup3",
+				"epoll_create",
+				"epoll_create1",
+				"epoll_ctl",
+				"epoll_ctl_old",
+				"epoll_pwait",
+				"epoll_wait",
+				"epoll_wait_old",
+				"eventfd",
+				"eventfd2",
+				"execve",
+				"execveat",
+				"exit",
+				"exit_group",
+				"faccessat",
+				"fadvise64",
+				"fadvise64_64",
+				"fallocate",
+				"fanotify_mark",
+				"fchdir",
+				"fchmod",
+				"fchmodat",
+				"fchown",
+				"fchown32",
+				"fchownat",
+				"fcntl",
+				"fcntl64",
+				"fdatasync",
+				"fgetxattr",
+				"flistxattr",
+				"flock",
+				"fork",
+				"fremovexattr",
+				"fsetxattr",
+				"fstat",
+				"fstat64",
+				"fstatat64",
+				"fstatfs",
+				"fstatfs64",
+				"fsync",
+				"ftruncate",
+				"ftruncate64",
+				"futex",
+				"futimesat",
+				"getcpu",
+				"getcwd",
+				"getdents",
+				"getdents64",
+				"getegid",
+				"getegid32",
+				"geteuid",
+				"geteuid32",
+				"getgid",
+				"getgid32",
+				"getgroups",
+				"getgroups32",
+				"getitimer",
+				"getpeername",
+				"getpgid",
+				"getpgrp",
+				"getpid",
+				"getppid",
+				"getpriority",
+				"getrandom",
+				"getresgid",
+				"getresgid32",
+				"getresuid",
+				"getresuid32",
+				"getrlimit",
+				"get_robust_list",
+				"getrusage",
+				"getsid",
+				"getsockname",
+				"getsockopt",
+				"get_thread_area",
+				"gettid",
+				"gettimeofday",
+				"getuid",
+				"getuid32",
+				"getxattr",
+				"inotify_add_watch",
+				"inotify_init",
+				"inotify_init1",
+				"inotify_rm_watch",
+				"io_cancel",
+				"ioctl",
+				"io_destroy",
+				"io_getevents",
+				"ioprio_get",
+				"ioprio_set",
+				"io_setup",
+				"io_submit",
+				"ipc",
+				"kill",
+				"lchown",
+				"lchown32",
+				"lgetxattr",
+				"link",
+				"linkat",
+				"listen",
+				"listxattr",
+				"llistxattr",
+				"_llseek",
+				"lremovexattr",
+				"lseek",
+				"lsetxattr",
+				"lstat",
+				"lstat64",
+				"madvise",
+				"memfd_create",
+				"mincore",
+				"mkdir",
+				"mkdirat",
+				"mknod",
+				"mknodat",
+				"mlock",
+				"mlock2",
+				"mlockall",
+				"mmap",
+				"mmap2",
+				"mprotect",
+				"mq_getsetattr",
+				"mq_notify",
+				"mq_open",
+				"mq_timedreceive",
+				"mq_timedsend",
+				"mq_unlink",
+				"mremap",
+				"msgctl",
+				"msgget",
+				"msgrcv",
+				"msgsnd",
+				"msync",
+				"munlock",
+				"munlockall",
+				"munmap",
+				"nanosleep",
+				"newfstatat",
+				"_newselect",
+				"open",
+				"openat",
+				"pause",
+				"pipe",
+				"pipe2",
+				"poll",
+				"ppoll",
+				"prctl",
+				"pread64",
+				"preadv",
+				"prlimit64",
+				"pselect6",
+				"pwrite64",
+				"pwritev",
+				"read",
+				"readahead",
+				"readlink",
+				"readlinkat",
+				"readv",
+				"recv",
+				"recvfrom",
+				"recvmmsg",
+				"recvmsg",
+				"remap_file_pages",
+				"removexattr",
+				"rename",
+				"renameat",
+				"renameat2",
+				"restart_syscall",
+				"rmdir",
+				"rt_sigaction",
+				"rt_sigpending",
+				"rt_sigprocmask",
+				"rt_sigqueueinfo",
+				"rt_sigreturn",
+				"rt_sigsuspend",
+				"rt_sigtimedwait",
+				"rt_tgsigqueueinfo",
+				"sched_getaffinity",
+				"sched_getattr",
+				"sched_getparam",
+				"sched_get_priority_max",
+				"sched_get_priority_min",
+				"sched_getscheduler",
+				"sched_rr_get_interval",
+				"sched_setaffinity",
+				"sched_setattr",
+				"sched_setparam",
+				"sched_setscheduler",
+				"sched_yield",
+				"seccomp",
+				"select",
+				"semctl",
+				"semget",
+				"semop",
+				"semtimedop",
+				"send",
+				"sendfile",
+				"sendfile64",
+				"sendmmsg",
+				"sendmsg",
+				"sendto",
+				"setfsgid",
+				"setfsgid32",
+				"setfsuid",
+				"setfsuid32",
+				"setgid",
+				"setgid32",
+				"setgroups",
+				"setgroups32",
+				"setitimer",
+				"setpgid",
+				"setpriority",
+				"setregid",
+				"setregid32",
+				"setresgid",
+				"setresgid32",
+				"setresuid",
+				"setresuid32",
+				"setreuid",
+				"setreuid32",
+				"setrlimit",
+				"set_robust_list",
+				"setsid",
+				"setsockopt",
+				"set_thread_area",
+				"set_tid_address",
+				"setuid",
+				"setuid32",
+				"setxattr",
+				"shmat",
+				"shmctl",
+				"shmdt",
+				"shmget",
+				"shutdown",
+				"sigaltstack",
+				"signalfd",
+				"signalfd4",
+				"sigreturn",
+				"socket",
+				"socketcall",
+				"socketpair",
+				"splice",
+				"stat",
+				"stat64",
+				"statfs",
+				"statfs64",
+				"symlink",
+				"symlinkat",
+				"sync",
+				"sync_file_range",
+				"syncfs",
+				"sysinfo",
+				"syslog",
+				"tee",
+				"tgkill",
+				"time",
+				"timer_create",
+				"timer_delete",
+				"timerfd_create",
+				"timerfd_gettime",
+				"timerfd_settime",
+				"timer_getoverrun",
+				"timer_gettime",
+				"timer_settime",
+				"times",
+				"tkill",
+				"truncate",
+				"truncate64",
+				"ugetrlimit",
+				"umask",
+				"uname",
+				"unlink",
+				"unlinkat",
+				"utime",
+				"utimensat",
+				"utimes",
+				"vfork",
+				"vmsplice",
+				"wait4",
+				"waitid",
+				"waitpid",
+				"write",
+				"writev",
+			},
+			Action: rspec.ActAllow,
+			Args:   []rspec.LinuxSeccompArg{},
+		},
+		{
+			Names:  []string{"personality"},
+			Action: rspec.ActAllow,
+			Args: []rspec.LinuxSeccompArg{
+				{
+					Index: 0,
+					Value: 0x0,
+					Op:    rspec.OpEqualTo,
+				},
+				{
+					Index: 0,
+					Value: 0x0008,
+					Op:    rspec.OpEqualTo,
+				},
+				{
+					Index: 0,
+					Value: 0xffffffff,
+					Op:    rspec.OpEqualTo,
+				},
+			},
+		},
+	}
+	var sysCloneFlagsIndex uint
+
+	capSysAdmin := false
+	caps := make(map[string]bool)
+
+	for _, cap := range rs.Process.Capabilities.Bounding {
+		caps[cap] = true
+	}
+	for _, cap := range rs.Process.Capabilities.Effective {
+		caps[cap] = true
+	}
+	for _, cap := range rs.Process.Capabilities.Inheritable {
+		caps[cap] = true
+	}
+	for _, cap := range rs.Process.Capabilities.Permitted {
+		caps[cap] = true
+	}
+	for _, cap := range rs.Process.Capabilities.Ambient {
+		caps[cap] = true
+	}
+
+	for cap := range caps {
+		switch cap {
+		case "CAP_DAC_READ_SEARCH":
+			syscalls = append(syscalls, []rspec.LinuxSyscall{
+				{
+					Names:  []string{"open_by_handle_at"},
+					Action: rspec.ActAllow,
+					Args:   []rspec.LinuxSeccompArg{},
+				},
+			}...)
+		case "CAP_SYS_ADMIN":
+			capSysAdmin = true
+			syscalls = append(syscalls, []rspec.LinuxSyscall{
+				{
+					Names: []string{
+						"bpf",
+						"clone",
+						"fanotify_init",
+						"lookup_dcookie",
+						"mount",
+						"name_to_handle_at",
+						"perf_event_open",
+						"setdomainname",
+						"sethostname",
+						"setns",
+						"umount",
+						"umount2",
+						"unshare",
+					},
+					Action: rspec.ActAllow,
+					Args:   []rspec.LinuxSeccompArg{},
+				},
+			}...)
+		case "CAP_SYS_BOOT":
+			syscalls = append(syscalls, []rspec.LinuxSyscall{
+				{
+					Names:  []string{"reboot"},
+					Action: rspec.ActAllow,
+					Args:   []rspec.LinuxSeccompArg{},
+				},
+			}...)
+		case "CAP_SYS_CHROOT":
+			syscalls = append(syscalls, []rspec.LinuxSyscall{
+				{
+					Names:  []string{"chroot"},
+					Action: rspec.ActAllow,
+					Args:   []rspec.LinuxSeccompArg{},
+				},
+			}...)
+		case "CAP_SYS_MODULE":
+			syscalls = append(syscalls, []rspec.LinuxSyscall{
+				{
+					Names: []string{
+						"delete_module",
+						"init_module",
+						"finit_module",
+						"query_module",
+					},
+					Action: rspec.ActAllow,
+					Args:   []rspec.LinuxSeccompArg{},
+				},
+			}...)
+		case "CAP_SYS_PACCT":
+			syscalls = append(syscalls, []rspec.LinuxSyscall{
+				{
+					Names:  []string{"acct"},
+					Action: rspec.ActAllow,
+					Args:   []rspec.LinuxSeccompArg{},
+				},
+			}...)
+		case "CAP_SYS_PTRACE":
+			syscalls = append(syscalls, []rspec.LinuxSyscall{
+				{
+					Names: []string{
+						"kcmp",
+						"process_vm_readv",
+						"process_vm_writev",
+						"ptrace",
+					},
+					Action: rspec.ActAllow,
+					Args:   []rspec.LinuxSeccompArg{},
+				},
+			}...)
+		case "CAP_SYS_RAWIO":
+			syscalls = append(syscalls, []rspec.LinuxSyscall{
+				{
+					Names: []string{
+						"iopl",
+						"ioperm",
+					},
+					Action: rspec.ActAllow,
+					Args:   []rspec.LinuxSeccompArg{},
+				},
+			}...)
+		case "CAP_SYS_TIME":
+			syscalls = append(syscalls, []rspec.LinuxSyscall{
+				{
+					Names: []string{
+						"settimeofday",
+						"stime",
+						"adjtimex",
+					},
+					Action: rspec.ActAllow,
+					Args:   []rspec.LinuxSeccompArg{},
+				},
+			}...)
+		case "CAP_SYS_TTY_CONFIG":
+			syscalls = append(syscalls, []rspec.LinuxSyscall{
+				{
+					Names:  []string{"vhangup"},
+					Action: rspec.ActAllow,
+					Args:   []rspec.LinuxSeccompArg{},
+				},
+			}...)
+		}
+	}
+
+	if !capSysAdmin {
+		syscalls = append(syscalls, []rspec.LinuxSyscall{
+			{
+				Names:  []string{"clone"},
+				Action: rspec.ActAllow,
+				Args: []rspec.LinuxSeccompArg{
+					{
+						Index:    sysCloneFlagsIndex,
+						Value:    syscall.CLONE_NEWNS | syscall.CLONE_NEWUTS | syscall.CLONE_NEWIPC | syscall.CLONE_NEWUSER | syscall.CLONE_NEWPID | syscall.CLONE_NEWNET,
+						ValueTwo: 0,
+						Op:       rspec.OpMaskedEqual,
+					},
+				},
+			},
+		}...)
+
+	}
+
+	arch := runtime.GOARCH
+	switch arch {
+	case "arm", "arm64":
+		syscalls = append(syscalls, []rspec.LinuxSyscall{
+			{
+				Names: []string{
+					"breakpoint",
+					"cacheflush",
+					"set_tls",
+				},
+				Action: rspec.ActAllow,
+				Args:   []rspec.LinuxSeccompArg{},
+			},
+		}...)
+	case "amd64", "x32":
+		syscalls = append(syscalls, []rspec.LinuxSyscall{
+			{
+				Names:  []string{"arch_prctl"},
+				Action: rspec.ActAllow,
+				Args:   []rspec.LinuxSeccompArg{},
+			},
+		}...)
+		fallthrough
+	case "x86":
+		syscalls = append(syscalls, []rspec.LinuxSyscall{
+			{
+				Names:  []string{"modify_ldt"},
+				Action: rspec.ActAllow,
+				Args:   []rspec.LinuxSeccompArg{},
+			},
+		}...)
+	case "s390", "s390x":
+		syscalls = append(syscalls, []rspec.LinuxSyscall{
+			{
+				Names: []string{
+					"s390_pci_mmio_read",
+					"s390_pci_mmio_write",
+					"s390_runtime_instr",
+				},
+				Action: rspec.ActAllow,
+				Args:   []rspec.LinuxSeccompArg{},
+			},
+		}...)
+		/* Flags parameter of the clone syscall is the 2nd on s390 */
+	}
+
+	return &rspec.LinuxSeccomp{
+		DefaultAction: rspec.ActErrno,
+		Architectures: arches(),
+		Syscalls:      syscalls,
+	}
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/syscall_compare.go

@@ -0,0 +1,140 @@
+package seccomp
+
+import (
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// Determine if a new syscall rule should be appended, overwrite an existing rule
+// or if no action should be taken at all
+func decideCourseOfAction(newSyscall *rspec.LinuxSyscall, syscalls []rspec.LinuxSyscall) (string, error) {
+	ruleForSyscallAlreadyExists := false
+
+	var sliceOfDeterminedActions []string
+	for i, syscall := range syscalls {
+		if sameName(&syscall, newSyscall) {
+			ruleForSyscallAlreadyExists = true
+
+			if identical(newSyscall, &syscall) {
+				sliceOfDeterminedActions = append(sliceOfDeterminedActions, nothing)
+			}
+
+			if sameAction(newSyscall, &syscall) {
+				if bothHaveArgs(newSyscall, &syscall) {
+					sliceOfDeterminedActions = append(sliceOfDeterminedActions, seccompAppend)
+				}
+				if onlyOneHasArgs(newSyscall, &syscall) {
+					if firstParamOnlyHasArgs(newSyscall, &syscall) {
+						sliceOfDeterminedActions = append(sliceOfDeterminedActions, "overwrite:"+strconv.Itoa(i))
+					} else {
+						sliceOfDeterminedActions = append(sliceOfDeterminedActions, nothing)
+					}
+				}
+			}
+
+			if !sameAction(newSyscall, &syscall) {
+				if bothHaveArgs(newSyscall, &syscall) {
+					if sameArgs(newSyscall, &syscall) {
+						sliceOfDeterminedActions = append(sliceOfDeterminedActions, "overwrite:"+strconv.Itoa(i))
+					}
+					if !sameArgs(newSyscall, &syscall) {
+						sliceOfDeterminedActions = append(sliceOfDeterminedActions, seccompAppend)
+					}
+				}
+				if onlyOneHasArgs(newSyscall, &syscall) {
+					sliceOfDeterminedActions = append(sliceOfDeterminedActions, seccompAppend)
+				}
+				if neitherHasArgs(newSyscall, &syscall) {
+					sliceOfDeterminedActions = append(sliceOfDeterminedActions, "overwrite:"+strconv.Itoa(i))
+				}
+			}
+		}
+	}
+
+	if !ruleForSyscallAlreadyExists {
+		sliceOfDeterminedActions = append(sliceOfDeterminedActions, seccompAppend)
+	}
+
+	// Nothing has highest priority
+	for _, determinedAction := range sliceOfDeterminedActions {
+		if determinedAction == nothing {
+			return determinedAction, nil
+		}
+	}
+
+	// Overwrite has second highest priority
+	for _, determinedAction := range sliceOfDeterminedActions {
+		if strings.Contains(determinedAction, seccompOverwrite) {
+			return determinedAction, nil
+		}
+	}
+
+	// Append has the lowest priority
+	for _, determinedAction := range sliceOfDeterminedActions {
+		if determinedAction == seccompAppend {
+			return determinedAction, nil
+		}
+	}
+
+	return "", fmt.Errorf("Trouble determining action: %s", sliceOfDeterminedActions)
+}
+
+func hasArguments(config *rspec.LinuxSyscall) bool {
+	nilSyscall := new(rspec.LinuxSyscall)
+	return !sameArgs(nilSyscall, config)
+}
+
+func identical(config1, config2 *rspec.LinuxSyscall) bool {
+	return reflect.DeepEqual(config1, config2)
+}
+
+func identicalExceptAction(config1, config2 *rspec.LinuxSyscall) bool {
+	samename := sameName(config1, config2)
+	sameAction := sameAction(config1, config2)
+	sameArgs := sameArgs(config1, config2)
+
+	return samename && !sameAction && sameArgs
+}
+
+func identicalExceptArgs(config1, config2 *rspec.LinuxSyscall) bool {
+	samename := sameName(config1, config2)
+	sameAction := sameAction(config1, config2)
+	sameArgs := sameArgs(config1, config2)
+
+	return samename && sameAction && !sameArgs
+}
+
+func sameName(config1, config2 *rspec.LinuxSyscall) bool {
+	return reflect.DeepEqual(config1.Names, config2.Names)
+}
+
+func sameAction(config1, config2 *rspec.LinuxSyscall) bool {
+	return config1.Action == config2.Action
+}
+
+func sameArgs(config1, config2 *rspec.LinuxSyscall) bool {
+	return reflect.DeepEqual(config1.Args, config2.Args)
+}
+
+func bothHaveArgs(config1, config2 *rspec.LinuxSyscall) bool {
+	return hasArguments(config1) && hasArguments(config2)
+}
+
+func onlyOneHasArgs(config1, config2 *rspec.LinuxSyscall) bool {
+	conf1 := hasArguments(config1)
+	conf2 := hasArguments(config2)
+
+	return (conf1 && !conf2) || (!conf1 && conf2)
+}
+
+func neitherHasArgs(config1, config2 *rspec.LinuxSyscall) bool {
+	return !hasArguments(config1) && !hasArguments(config2)
+}
+
+func firstParamOnlyHasArgs(config1, config2 *rspec.LinuxSyscall) bool {
+	return !hasArguments(config1) && hasArguments(config2)
+}

vendor/github.com/opencontainers/runtime-tools/generate/spec.go

@@ -0,0 +1,109 @@
+package generate
+
+import (
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+func (g *Generator) initSpec() {
+	if g.spec == nil {
+		g.spec = &rspec.Spec{}
+	}
+}
+
+func (g *Generator) initSpecProcess() {
+	g.initSpec()
+	if g.spec.Process == nil {
+		g.spec.Process = &rspec.Process{}
+	}
+}
+
+func (g *Generator) initSpecProcessConsoleSize() {
+	g.initSpecProcess()
+	if g.spec.Process.ConsoleSize == nil {
+		g.spec.Process.ConsoleSize = &rspec.Box{}
+	}
+}
+
+func (g *Generator) initSpecProcessCapabilities() {
+	g.initSpecProcess()
+	if g.spec.Process.Capabilities == nil {
+		g.spec.Process.Capabilities = &rspec.LinuxCapabilities{}
+	}
+}
+
+func (g *Generator) initSpecRoot() {
+	g.initSpec()
+	if g.spec.Root == nil {
+		g.spec.Root = &rspec.Root{}
+	}
+}
+
+func (g *Generator) initSpecAnnotations() {
+	g.initSpec()
+	if g.spec.Annotations == nil {
+		g.spec.Annotations = make(map[string]string)
+	}
+}
+
+func (g *Generator) initSpecHooks() {
+	g.initSpec()
+	if g.spec.Hooks == nil {
+		g.spec.Hooks = &rspec.Hooks{}
+	}
+}
+
+func (g *Generator) initSpecLinux() {
+	g.initSpec()
+	if g.spec.Linux == nil {
+		g.spec.Linux = &rspec.Linux{}
+	}
+}
+
+func (g *Generator) initSpecLinuxSysctl() {
+	g.initSpecLinux()
+	if g.spec.Linux.Sysctl == nil {
+		g.spec.Linux.Sysctl = make(map[string]string)
+	}
+}
+
+func (g *Generator) initSpecLinuxSeccomp() {
+	g.initSpecLinux()
+	if g.spec.Linux.Seccomp == nil {
+		g.spec.Linux.Seccomp = &rspec.LinuxSeccomp{}
+	}
+}
+
+func (g *Generator) initSpecLinuxResources() {
+	g.initSpecLinux()
+	if g.spec.Linux.Resources == nil {
+		g.spec.Linux.Resources = &rspec.LinuxResources{}
+	}
+}
+
+func (g *Generator) initSpecLinuxResourcesCPU() {
+	g.initSpecLinuxResources()
+	if g.spec.Linux.Resources.CPU == nil {
+		g.spec.Linux.Resources.CPU = &rspec.LinuxCPU{}
+	}
+}
+
+func (g *Generator) initSpecLinuxResourcesMemory() {
+	g.initSpecLinuxResources()
+	if g.spec.Linux.Resources.Memory == nil {
+		g.spec.Linux.Resources.Memory = &rspec.LinuxMemory{}
+	}
+}
+
+func (g *Generator) initSpecLinuxResourcesNetwork() {
+	g.initSpecLinuxResources()
+	if g.spec.Linux.Resources.Network == nil {
+		g.spec.Linux.Resources.Network = &rspec.LinuxNetwork{}
+	}
+}
+
+func (g *Generator) initSpecLinuxResourcesPids() {
+	g.initSpecLinuxResources()
+	if g.spec.Linux.Resources.Pids == nil {
+		g.spec.Linux.Resources.Pids = &rspec.LinuxPids{}
+	}
+}

vendor/github.com/opencontainers/runtime-tools/specerror/error.go

@@ -0,0 +1,170 @@
+// Package specerror implements runtime-spec-specific tooling for
+// tracking RFC 2119 violations.
+package specerror
+
+import (
+	"fmt"
+
+	"github.com/hashicorp/go-multierror"
+	rfc2119 "github.com/opencontainers/runtime-tools/error"
+)
+
+const referenceTemplate = "https://github.com/opencontainers/runtime-spec/blob/v%s/%s"
+
+// Code represents the spec violation, enumerating both
+// configuration violations and runtime violations.
+type Code int
+
+const (
+	// NonError represents that an input is not an error
+	NonError Code = iota
+	// NonRFCError represents that an error is not a rfc2119 error
+	NonRFCError
+
+	// ConfigFileExistence represents the error code of 'config.json' existence test
+	ConfigFileExistence
+	// ArtifactsInSingleDir represents the error code of artifacts place test
+	ArtifactsInSingleDir
+
+	// SpecVersion represents the error code of specfication version test
+	SpecVersion
+
+	// RootOnNonHyperV represents the error code of root setting test on non hyper-v containers
+	RootOnNonHyperV
+	// RootOnHyperV represents the error code of root setting test on hyper-v containers
+	RootOnHyperV
+	// PathFormatOnWindows represents the error code of the path format test on Window
+	PathFormatOnWindows
+	// PathName represents the error code of the path name test
+	PathName
+	// PathExistence represents the error code of the path existence test
+	PathExistence
+	// ReadonlyFilesystem represents the error code of readonly test
+	ReadonlyFilesystem
+	// ReadonlyOnWindows represents the error code of readonly setting test on Windows
+	ReadonlyOnWindows
+
+	// DefaultFilesystems represents the error code of default filesystems test
+	DefaultFilesystems
+
+	// CreateWithID represents the error code of 'create' lifecyle test with 'id' provided
+	CreateWithID
+	// CreateWithUniqueID represents the error code of 'create' lifecyle test with unique 'id' provided
+	CreateWithUniqueID
+	// CreateNewContainer represents the error code 'create' lifecyle test that creates new container
+	CreateNewContainer
+)
+
+type errorTemplate struct {
+	Level     rfc2119.Level
+	Reference func(version string) (reference string, err error)
+}
+
+// Error represents a runtime-spec violation.
+type Error struct {
+	// Err holds the RFC 2119 violation.
+	Err rfc2119.Error
+
+	// Code is a matchable holds a Code
+	Code Code
+}
+
+var (
+	containerFormatRef = func(version string) (reference string, err error) {
+		return fmt.Sprintf(referenceTemplate, version, "bundle.md#container-format"), nil
+	}
+	specVersionRef = func(version string) (reference string, err error) {
+		return fmt.Sprintf(referenceTemplate, version, "config.md#specification-version"), nil
+	}
+	rootRef = func(version string) (reference string, err error) {
+		return fmt.Sprintf(referenceTemplate, version, "config.md#root"), nil
+	}
+	defaultFSRef = func(version string) (reference string, err error) {
+		return fmt.Sprintf(referenceTemplate, version, "config-linux.md#default-filesystems"), nil
+	}
+	runtimeCreateRef = func(version string) (reference string, err error) {
+		return fmt.Sprintf(referenceTemplate, version, "runtime.md#create"), nil
+	}
+)
+
+var ociErrors = map[Code]errorTemplate{
+	// Bundle.md
+	// Container Format
+	ConfigFileExistence:  {Level: rfc2119.Must, Reference: containerFormatRef},
+	ArtifactsInSingleDir: {Level: rfc2119.Must, Reference: containerFormatRef},
+
+	// Config.md
+	// Specification Version
+	SpecVersion: {Level: rfc2119.Must, Reference: specVersionRef},
+	// Root
+	RootOnNonHyperV: {Level: rfc2119.Required, Reference: rootRef},
+	RootOnHyperV:    {Level: rfc2119.Must, Reference: rootRef},
+	// TODO: add tests for 'PathFormatOnWindows'
+	PathFormatOnWindows: {Level: rfc2119.Must, Reference: rootRef},
+	PathName:            {Level: rfc2119.Should, Reference: rootRef},
+	PathExistence:       {Level: rfc2119.Must, Reference: rootRef},
+	ReadonlyFilesystem:  {Level: rfc2119.Must, Reference: rootRef},
+	ReadonlyOnWindows:   {Level: rfc2119.Must, Reference: rootRef},
+
+	// Config-Linux.md
+	// Default Filesystems
+	DefaultFilesystems: {Level: rfc2119.Should, Reference: defaultFSRef},
+
+	// Runtime.md
+	// Create
+	CreateWithID:       {Level: rfc2119.Must, Reference: runtimeCreateRef},
+	CreateWithUniqueID: {Level: rfc2119.Must, Reference: runtimeCreateRef},
+	CreateNewContainer: {Level: rfc2119.Must, Reference: runtimeCreateRef},
+}
+
+// Error returns the error message with specification reference.
+func (err *Error) Error() string {
+	return err.Err.Error()
+}
+
+// NewError creates an Error referencing a spec violation.  The error
+// can be cast to an *Error for extracting structured information
+// about the level of the violation and a reference to the violated
+// spec condition.
+//
+// A version string (for the version of the spec that was violated)
+// must be set to get a working URL.
+func NewError(code Code, err error, version string) error {
+	template := ociErrors[code]
+	reference, err2 := template.Reference(version)
+	if err2 != nil {
+		return err2
+	}
+	return &Error{
+		Err: rfc2119.Error{
+			Level:     template.Level,
+			Reference: reference,
+			Err:       err,
+		},
+		Code: code,
+	}
+}
+
+// FindError finds an error from a source error (multiple error) and
+// returns the error code if found.
+// If the source error is nil or empty, return NonError.
+// If the source error is not a multiple error, return NonRFCError.
+func FindError(err error, code Code) Code {
+	if err == nil {
+		return NonError
+	}
+
+	if merr, ok := err.(*multierror.Error); ok {
+		if merr.ErrorOrNil() == nil {
+			return NonError
+		}
+		for _, e := range merr.Errors {
+			if rfcErr, ok := e.(*Error); ok {
+				if rfcErr.Code == code {
+					return code
+				}
+			}
+		}
+	}
+	return NonRFCError
+}

vendor/github.com/opencontainers/selinux/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright {yyyy} {name of copyright owner}
+
+   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.

vendor/github.com/opencontainers/selinux/README.md

@@ -0,0 +1,7 @@
+# selinux
+
+[![GoDoc](https://godoc.org/github.com/opencontainers/selinux?status.svg)](https://godoc.org/github.com/opencontainers/selinux) [![Go Report Card](https://goreportcard.com/badge/github.com/opencontainers/selinux)](https://goreportcard.com/report/github.com/opencontainers/selinux) [![Build Status](https://travis-ci.org/opencontainers/selinux.svg?branch=master)](https://travis-ci.org/opencontainers/selinux)
+
+Common SELinux package used across the container ecosystem.
+
+Please see the [godoc](https://godoc.org/github.com/opencontainers/selinux) for more information.

vendor/github.com/opencontainers/selinux/go-selinux/label/label.go

@@ -0,0 +1,84 @@
+// +build !selinux !linux
+
+package label
+
+// InitLabels returns the process label and file labels to be used within
+// the container.  A list of options can be passed into this function to alter
+// the labels.
+func InitLabels(options []string) (string, string, error) {
+	return "", "", nil
+}
+
+func GetROMountLabel() string {
+	return ""
+}
+
+func GenLabels(options string) (string, string, error) {
+	return "", "", nil
+}
+
+func FormatMountLabel(src string, mountLabel string) string {
+	return src
+}
+
+func SetProcessLabel(processLabel string) error {
+	return nil
+}
+
+func GetFileLabel(path string) (string, error) {
+	return "", nil
+}
+
+func SetFileLabel(path string, fileLabel string) error {
+	return nil
+}
+
+func SetFileCreateLabel(fileLabel string) error {
+	return nil
+}
+
+func Relabel(path string, fileLabel string, shared bool) error {
+	return nil
+}
+
+func GetPidLabel(pid int) (string, error) {
+	return "", nil
+}
+
+func Init() {
+}
+
+func ReserveLabel(label string) error {
+	return nil
+}
+
+func ReleaseLabel(label string) error {
+	return nil
+}
+
+// DupSecOpt takes a process label and returns security options that
+// can be used to set duplicate labels on future container processes
+func DupSecOpt(src string) []string {
+	return nil
+}
+
+// DisableSecOpt returns a security opt that can disable labeling
+// support for future container processes
+func DisableSecOpt() []string {
+	return nil
+}
+
+// Validate checks that the label does not include unexpected options
+func Validate(label string) error {
+	return nil
+}
+
+// RelabelNeeded checks whether the user requested a relabel
+func RelabelNeeded(label string) bool {
+	return false
+}
+
+// IsShared checks that the label includes a "shared" mark
+func IsShared(label string) bool {
+	return false
+}

vendor/github.com/opencontainers/selinux/go-selinux/label/label_selinux.go

@@ -0,0 +1,204 @@
+// +build selinux,linux
+
+package label
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/opencontainers/selinux/go-selinux"
+)
+
+// Valid Label Options
+var validOptions = map[string]bool{
+	"disable": true,
+	"type":    true,
+	"user":    true,
+	"role":    true,
+	"level":   true,
+}
+
+var ErrIncompatibleLabel = fmt.Errorf("Bad SELinux option z and Z can not be used together")
+
+// InitLabels returns the process label and file labels to be used within
+// the container.  A list of options can be passed into this function to alter
+// the labels.  The labels returned will include a random MCS String, that is
+// guaranteed to be unique.
+func InitLabels(options []string) (string, string, error) {
+	if !selinux.GetEnabled() {
+		return "", "", nil
+	}
+	processLabel, mountLabel := selinux.ContainerLabels()
+	if processLabel != "" {
+		pcon := selinux.NewContext(processLabel)
+		mcon := selinux.NewContext(mountLabel)
+		for _, opt := range options {
+			if opt == "disable" {
+				return "", "", nil
+			}
+			if i := strings.Index(opt, ":"); i == -1 {
+				return "", "", fmt.Errorf("Bad label option %q, valid options 'disable' or \n'user, role, level, type' followed by ':' and a value", opt)
+			}
+			con := strings.SplitN(opt, ":", 2)
+			if !validOptions[con[0]] {
+				return "", "", fmt.Errorf("Bad label option %q, valid options 'disable, user, role, level, type'", con[0])
+
+			}
+			pcon[con[0]] = con[1]
+			if con[0] == "level" || con[0] == "user" {
+				mcon[con[0]] = con[1]
+			}
+		}
+		processLabel = pcon.Get()
+		mountLabel = mcon.Get()
+	}
+	return processLabel, mountLabel, nil
+}
+
+func ROMountLabel() string {
+	return selinux.ROFileLabel()
+}
+
+// DEPRECATED: The GenLabels function is only to be used during the transition to the official API.
+func GenLabels(options string) (string, string, error) {
+	return InitLabels(strings.Fields(options))
+}
+
+// FormatMountLabel returns a string to be used by the mount command.
+// The format of this string will be used to alter the labeling of the mountpoint.
+// The string returned is suitable to be used as the options field of the mount command.
+// If you need to have additional mount point options, you can pass them in as
+// the first parameter.  Second parameter is the label that you wish to apply
+// to all content in the mount point.
+func FormatMountLabel(src, mountLabel string) string {
+	if mountLabel != "" {
+		switch src {
+		case "":
+			src = fmt.Sprintf("context=%q", mountLabel)
+		default:
+			src = fmt.Sprintf("%s,context=%q", src, mountLabel)
+		}
+	}
+	return src
+}
+
+// SetProcessLabel takes a process label and tells the kernel to assign the
+// label to the next program executed by the current process.
+func SetProcessLabel(processLabel string) error {
+	if processLabel == "" {
+		return nil
+	}
+	return selinux.SetExecLabel(processLabel)
+}
+
+// ProcessLabel returns the process label that the kernel will assign
+// to the next program executed by the current process.  If "" is returned
+// this indicates that the default labeling will happen for the process.
+func ProcessLabel() (string, error) {
+	return selinux.ExecLabel()
+}
+
+// GetFileLabel returns the label for specified path
+func FileLabel(path string) (string, error) {
+	return selinux.FileLabel(path)
+}
+
+// SetFileLabel modifies the "path" label to the specified file label
+func SetFileLabel(path string, fileLabel string) error {
+	if selinux.GetEnabled() && fileLabel != "" {
+		return selinux.SetFileLabel(path, fileLabel)
+	}
+	return nil
+}
+
+// SetFileCreateLabel tells the kernel the label for all files to be created
+func SetFileCreateLabel(fileLabel string) error {
+	if selinux.GetEnabled() {
+		return selinux.SetFSCreateLabel(fileLabel)
+	}
+	return nil
+}
+
+// Relabel changes the label of path to the filelabel string.
+// It changes the MCS label to s0 if shared is true.
+// This will allow all containers to share the content.
+func Relabel(path string, fileLabel string, shared bool) error {
+	if !selinux.GetEnabled() {
+		return nil
+	}
+
+	if fileLabel == "" {
+		return nil
+	}
+
+	exclude_paths := map[string]bool{"/": true, "/usr": true, "/etc": true}
+	if exclude_paths[path] {
+		return fmt.Errorf("SELinux relabeling of %s is not allowed", path)
+	}
+
+	if shared {
+		c := selinux.NewContext(fileLabel)
+		c["level"] = "s0"
+		fileLabel = c.Get()
+	}
+	if err := selinux.Chcon(path, fileLabel, true); err != nil {
+		return err
+	}
+	return nil
+}
+
+// PidLabel will return the label of the process running with the specified pid
+func PidLabel(pid int) (string, error) {
+	return selinux.PidLabel(pid)
+}
+
+// Init initialises the labeling system
+func Init() {
+	selinux.GetEnabled()
+}
+
+// ReserveLabel will record the fact that the MCS label has already been used.
+// This will prevent InitLabels from using the MCS label in a newly created
+// container
+func ReserveLabel(label string) error {
+	selinux.ReserveLabel(label)
+	return nil
+}
+
+// ReleaseLabel will remove the reservation of the MCS label.
+// This will allow InitLabels to use the MCS label in a newly created
+// containers
+func ReleaseLabel(label string) error {
+	selinux.ReleaseLabel(label)
+	return nil
+}
+
+// DupSecOpt takes a process label and returns security options that
+// can be used to set duplicate labels on future container processes
+func DupSecOpt(src string) []string {
+	return selinux.DupSecOpt(src)
+}
+
+// DisableSecOpt returns a security opt that can disable labeling
+// support for future container processes
+func DisableSecOpt() []string {
+	return selinux.DisableSecOpt()
+}
+
+// Validate checks that the label does not include unexpected options
+func Validate(label string) error {
+	if strings.Contains(label, "z") && strings.Contains(label, "Z") {
+		return ErrIncompatibleLabel
+	}
+	return nil
+}
+
+// RelabelNeeded checks whether the user requested a relabel
+func RelabelNeeded(label string) bool {
+	return strings.Contains(label, "z") || strings.Contains(label, "Z")
+}
+
+// IsShared checks that the label includes a "shared" mark
+func IsShared(label string) bool {
+	return strings.Contains(label, "z")
+}

vendor/github.com/opencontainers/selinux/go-selinux/selinux.go

@@ -0,0 +1,593 @@
+// +build linux
+
+package selinux
+
+import (
+	"bufio"
+	"crypto/rand"
+	"encoding/binary"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strconv"
+	"strings"
+	"sync"
+	"syscall"
+)
+
+const (
+	// Enforcing constant indicate SELinux is in enforcing mode
+	Enforcing = 1
+	// Permissive constant to indicate SELinux is in permissive mode
+	Permissive = 0
+	// Disabled constant to indicate SELinux is disabled
+	Disabled         = -1
+	selinuxDir       = "/etc/selinux/"
+	selinuxConfig    = selinuxDir + "config"
+	selinuxTypeTag   = "SELINUXTYPE"
+	selinuxTag       = "SELINUX"
+	selinuxPath      = "/sys/fs/selinux"
+	xattrNameSelinux = "security.selinux"
+	stRdOnly         = 0x01
+)
+
+type selinuxState struct {
+	enabledSet   bool
+	enabled      bool
+	selinuxfsSet bool
+	selinuxfs    string
+	mcsList      map[string]bool
+	sync.Mutex
+}
+
+var (
+	assignRegex = regexp.MustCompile(`^([^=]+)=(.*)$`)
+	state       = selinuxState{
+		mcsList: make(map[string]bool),
+	}
+)
+
+// Context is a representation of the SELinux label broken into 4 parts
+type Context map[string]string
+
+func (s *selinuxState) setEnable(enabled bool) bool {
+	s.Lock()
+	defer s.Unlock()
+	s.enabledSet = true
+	s.enabled = enabled
+	return s.enabled
+}
+
+func (s *selinuxState) getEnabled() bool {
+	s.Lock()
+	enabled := s.enabled
+	enabledSet := s.enabledSet
+	s.Unlock()
+	if enabledSet {
+		return enabled
+	}
+
+	enabled = false
+	if fs := getSelinuxMountPoint(); fs != "" {
+		if con, _ := CurrentLabel(); con != "kernel" {
+			enabled = true
+		}
+	}
+	return s.setEnable(enabled)
+}
+
+// SetDisabled disables selinux support for the package
+func SetDisabled() {
+	state.setEnable(false)
+}
+
+func (s *selinuxState) setSELinuxfs(selinuxfs string) string {
+	s.Lock()
+	defer s.Unlock()
+	s.selinuxfsSet = true
+	s.selinuxfs = selinuxfs
+	return s.selinuxfs
+}
+
+func (s *selinuxState) getSELinuxfs() string {
+	s.Lock()
+	selinuxfs := s.selinuxfs
+	selinuxfsSet := s.selinuxfsSet
+	s.Unlock()
+	if selinuxfsSet {
+		return selinuxfs
+	}
+
+	selinuxfs = ""
+	f, err := os.Open("/proc/self/mountinfo")
+	if err != nil {
+		return selinuxfs
+	}
+	defer f.Close()
+
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		txt := scanner.Text()
+		// Safe as mountinfo encodes mountpoints with spaces as \040.
+		sepIdx := strings.Index(txt, " - ")
+		if sepIdx == -1 {
+			continue
+		}
+		if !strings.Contains(txt[sepIdx:], "selinuxfs") {
+			continue
+		}
+		fields := strings.Split(txt, " ")
+		if len(fields) < 5 {
+			continue
+		}
+		selinuxfs = fields[4]
+		break
+	}
+
+	if selinuxfs != "" {
+		var buf syscall.Statfs_t
+		syscall.Statfs(selinuxfs, &buf)
+		if (buf.Flags & stRdOnly) == 1 {
+			selinuxfs = ""
+		}
+	}
+	return s.setSELinuxfs(selinuxfs)
+}
+
+// getSelinuxMountPoint returns the path to the mountpoint of an selinuxfs
+// filesystem or an empty string if no mountpoint is found.  Selinuxfs is
+// a proc-like pseudo-filesystem that exposes the selinux policy API to
+// processes.  The existence of an selinuxfs mount is used to determine
+// whether selinux is currently enabled or not.
+func getSelinuxMountPoint() string {
+	return state.getSELinuxfs()
+}
+
+// GetEnabled returns whether selinux is currently enabled.
+func GetEnabled() bool {
+	return state.getEnabled()
+}
+
+func readConfig(target string) (value string) {
+	var (
+		val, key string
+		bufin    *bufio.Reader
+	)
+
+	in, err := os.Open(selinuxConfig)
+	if err != nil {
+		return ""
+	}
+	defer in.Close()
+
+	bufin = bufio.NewReader(in)
+
+	for done := false; !done; {
+		var line string
+		if line, err = bufin.ReadString('\n'); err != nil {
+			if err != io.EOF {
+				return ""
+			}
+			done = true
+		}
+		line = strings.TrimSpace(line)
+		if len(line) == 0 {
+			// Skip blank lines
+			continue
+		}
+		if line[0] == ';' || line[0] == '#' {
+			// Skip comments
+			continue
+		}
+		if groups := assignRegex.FindStringSubmatch(line); groups != nil {
+			key, val = strings.TrimSpace(groups[1]), strings.TrimSpace(groups[2])
+			if key == target {
+				return strings.Trim(val, "\"")
+			}
+		}
+	}
+	return ""
+}
+
+func getSELinuxPolicyRoot() string {
+	return selinuxDir + readConfig(selinuxTypeTag)
+}
+
+func readCon(name string) (string, error) {
+	var val string
+
+	in, err := os.Open(name)
+	if err != nil {
+		return "", err
+	}
+	defer in.Close()
+
+	_, err = fmt.Fscanf(in, "%s", &val)
+	return val, err
+}
+
+// SetFileLabel sets the SELinux label for this path or returns an error.
+func SetFileLabel(path string, label string) error {
+	return lsetxattr(path, xattrNameSelinux, []byte(label), 0)
+}
+
+// FileLabel returns the SELinux label for this path or returns an error.
+func FileLabel(path string) (string, error) {
+	label, err := lgetxattr(path, xattrNameSelinux)
+	if err != nil {
+		return "", err
+	}
+	// Trim the NUL byte at the end of the byte buffer, if present.
+	if len(label) > 0 && label[len(label)-1] == '\x00' {
+		label = label[:len(label)-1]
+	}
+	return string(label), nil
+}
+
+/*
+SetFSCreateLabel tells kernel the label to create all file system objects
+created by this task. Setting label="" to return to default.
+*/
+func SetFSCreateLabel(label string) error {
+	return writeCon(fmt.Sprintf("/proc/self/task/%d/attr/fscreate", syscall.Gettid()), label)
+}
+
+/*
+FSCreateLabel returns the default label the kernel which the kernel is using
+for file system objects created by this task. "" indicates default.
+*/
+func FSCreateLabel() (string, error) {
+	return readCon(fmt.Sprintf("/proc/self/task/%d/attr/fscreate", syscall.Gettid()))
+}
+
+// CurrentLabel returns the SELinux label of the current process thread, or an error.
+func CurrentLabel() (string, error) {
+	return readCon(fmt.Sprintf("/proc/self/task/%d/attr/current", syscall.Gettid()))
+}
+
+// PidLabel returns the SELinux label of the given pid, or an error.
+func PidLabel(pid int) (string, error) {
+	return readCon(fmt.Sprintf("/proc/%d/attr/current", pid))
+}
+
+/*
+ExecLabel returns the SELinux label that the kernel will use for any programs
+that are executed by the current process thread, or an error.
+*/
+func ExecLabel() (string, error) {
+	return readCon(fmt.Sprintf("/proc/self/task/%d/attr/exec", syscall.Gettid()))
+}
+
+func writeCon(name string, val string) error {
+	out, err := os.OpenFile(name, os.O_WRONLY, 0)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	if val != "" {
+		_, err = out.Write([]byte(val))
+	} else {
+		_, err = out.Write(nil)
+	}
+	return err
+}
+
+/*
+SetExecLabel sets the SELinux label that the kernel will use for any programs
+that are executed by the current process thread, or an error.
+*/
+func SetExecLabel(label string) error {
+	return writeCon(fmt.Sprintf("/proc/self/task/%d/attr/exec", syscall.Gettid()), label)
+}
+
+// Get returns the Context as a string
+func (c Context) Get() string {
+	return fmt.Sprintf("%s:%s:%s:%s", c["user"], c["role"], c["type"], c["level"])
+}
+
+// NewContext creates a new Context struct from the specified label
+func NewContext(label string) Context {
+	c := make(Context)
+
+	if len(label) != 0 {
+		con := strings.SplitN(label, ":", 4)
+		c["user"] = con[0]
+		c["role"] = con[1]
+		c["type"] = con[2]
+		c["level"] = con[3]
+	}
+	return c
+}
+
+// ReserveLabel reserves the MLS/MCS level component of the specified label
+func ReserveLabel(label string) {
+	if len(label) != 0 {
+		con := strings.SplitN(label, ":", 4)
+		mcsAdd(con[3])
+	}
+}
+
+func selinuxEnforcePath() string {
+	return fmt.Sprintf("%s/enforce", selinuxPath)
+}
+
+// EnforceMode returns the current SELinux mode Enforcing, Permissive, Disabled
+func EnforceMode() int {
+	var enforce int
+
+	enforceS, err := readCon(selinuxEnforcePath())
+	if err != nil {
+		return -1
+	}
+
+	enforce, err = strconv.Atoi(string(enforceS))
+	if err != nil {
+		return -1
+	}
+	return enforce
+}
+
+/*
+SetEnforceMode sets the current SELinux mode Enforcing, Permissive.
+Disabled is not valid, since this needs to be set at boot time.
+*/
+func SetEnforceMode(mode int) error {
+	return writeCon(selinuxEnforcePath(), fmt.Sprintf("%d", mode))
+}
+
+/*
+DefaultEnforceMode returns the systems default SELinux mode Enforcing,
+Permissive or Disabled. Note this is is just the default at boot time.
+EnforceMode tells you the systems current mode.
+*/
+func DefaultEnforceMode() int {
+	switch readConfig(selinuxTag) {
+	case "enforcing":
+		return Enforcing
+	case "permissive":
+		return Permissive
+	}
+	return Disabled
+}
+
+func mcsAdd(mcs string) error {
+	state.Lock()
+	defer state.Unlock()
+	if state.mcsList[mcs] {
+		return fmt.Errorf("MCS Label already exists")
+	}
+	state.mcsList[mcs] = true
+	return nil
+}
+
+func mcsDelete(mcs string) {
+	state.Lock()
+	defer state.Unlock()
+	state.mcsList[mcs] = false
+}
+
+func intToMcs(id int, catRange uint32) string {
+	var (
+		SETSIZE = int(catRange)
+		TIER    = SETSIZE
+		ORD     = id
+	)
+
+	if id < 1 || id > 523776 {
+		return ""
+	}
+
+	for ORD > TIER {
+		ORD = ORD - TIER
+		TIER--
+	}
+	TIER = SETSIZE - TIER
+	ORD = ORD + TIER
+	return fmt.Sprintf("s0:c%d,c%d", TIER, ORD)
+}
+
+func uniqMcs(catRange uint32) string {
+	var (
+		n      uint32
+		c1, c2 uint32
+		mcs    string
+	)
+
+	for {
+		binary.Read(rand.Reader, binary.LittleEndian, &n)
+		c1 = n % catRange
+		binary.Read(rand.Reader, binary.LittleEndian, &n)
+		c2 = n % catRange
+		if c1 == c2 {
+			continue
+		} else {
+			if c1 > c2 {
+				c1, c2 = c2, c1
+			}
+		}
+		mcs = fmt.Sprintf("s0:c%d,c%d", c1, c2)
+		if err := mcsAdd(mcs); err != nil {
+			continue
+		}
+		break
+	}
+	return mcs
+}
+
+/*
+ReleaseLabel will unreserve the MLS/MCS Level field of the specified label.
+Allowing it to be used by another process.
+*/
+func ReleaseLabel(label string) {
+	if len(label) != 0 {
+		con := strings.SplitN(label, ":", 4)
+		mcsDelete(con[3])
+	}
+}
+
+var roFileLabel string
+
+// ROFileLabel returns the specified SELinux readonly file label
+func ROFileLabel() (fileLabel string) {
+	return roFileLabel
+}
+
+/*
+ContainerLabels returns an allocated processLabel and fileLabel to be used for
+container labeling by the calling process.
+*/
+func ContainerLabels() (processLabel string, fileLabel string) {
+	var (
+		val, key string
+		bufin    *bufio.Reader
+	)
+
+	if !GetEnabled() {
+		return "", ""
+	}
+	lxcPath := fmt.Sprintf("%s/contexts/lxc_contexts", getSELinuxPolicyRoot())
+	in, err := os.Open(lxcPath)
+	if err != nil {
+		return "", ""
+	}
+	defer in.Close()
+
+	bufin = bufio.NewReader(in)
+
+	for done := false; !done; {
+		var line string
+		if line, err = bufin.ReadString('\n'); err != nil {
+			if err == io.EOF {
+				done = true
+			} else {
+				goto exit
+			}
+		}
+		line = strings.TrimSpace(line)
+		if len(line) == 0 {
+			// Skip blank lines
+			continue
+		}
+		if line[0] == ';' || line[0] == '#' {
+			// Skip comments
+			continue
+		}
+		if groups := assignRegex.FindStringSubmatch(line); groups != nil {
+			key, val = strings.TrimSpace(groups[1]), strings.TrimSpace(groups[2])
+			if key == "process" {
+				processLabel = strings.Trim(val, "\"")
+			}
+			if key == "file" {
+				fileLabel = strings.Trim(val, "\"")
+			}
+			if key == "ro_file" {
+				roFileLabel = strings.Trim(val, "\"")
+			}
+		}
+	}
+
+	if processLabel == "" || fileLabel == "" {
+		return "", ""
+	}
+
+	if roFileLabel == "" {
+		roFileLabel = fileLabel
+	}
+exit:
+	mcs := uniqMcs(1024)
+	scon := NewContext(processLabel)
+	scon["level"] = mcs
+	processLabel = scon.Get()
+	scon = NewContext(fileLabel)
+	scon["level"] = mcs
+	fileLabel = scon.Get()
+	return processLabel, fileLabel
+}
+
+// SecurityCheckContext validates that the SELinux label is understood by the kernel
+func SecurityCheckContext(val string) error {
+	return writeCon(fmt.Sprintf("%s.context", selinuxPath), val)
+}
+
+/*
+CopyLevel returns a label with the MLS/MCS level from src label replaces on
+the dest label.
+*/
+func CopyLevel(src, dest string) (string, error) {
+	if src == "" {
+		return "", nil
+	}
+	if err := SecurityCheckContext(src); err != nil {
+		return "", err
+	}
+	if err := SecurityCheckContext(dest); err != nil {
+		return "", err
+	}
+	scon := NewContext(src)
+	tcon := NewContext(dest)
+	mcsDelete(tcon["level"])
+	mcsAdd(scon["level"])
+	tcon["level"] = scon["level"]
+	return tcon.Get(), nil
+}
+
+// Prevent users from relabing system files
+func badPrefix(fpath string) error {
+	var badprefixes = []string{"/usr"}
+
+	for _, prefix := range badprefixes {
+		if fpath == prefix || strings.HasPrefix(fpath, fmt.Sprintf("%s/", prefix)) {
+			return fmt.Errorf("relabeling content in %s is not allowed", prefix)
+		}
+	}
+	return nil
+}
+
+// Chcon changes the fpath file object to the SELinux label label.
+// If the fpath is a directory and recurse is true Chcon will walk the
+// directory tree setting the label
+func Chcon(fpath string, label string, recurse bool) error {
+	if label == "" {
+		return nil
+	}
+	if err := badPrefix(fpath); err != nil {
+		return err
+	}
+	callback := func(p string, info os.FileInfo, err error) error {
+		return SetFileLabel(p, label)
+	}
+
+	if recurse {
+		return filepath.Walk(fpath, callback)
+	}
+
+	return SetFileLabel(fpath, label)
+}
+
+// DupSecOpt takes an SELinux process label and returns security options that
+// can will set the SELinux Type and Level for future container processes
+func DupSecOpt(src string) []string {
+	if src == "" {
+		return nil
+	}
+	con := NewContext(src)
+	if con["user"] == "" ||
+		con["role"] == "" ||
+		con["type"] == "" ||
+		con["level"] == "" {
+		return nil
+	}
+	return []string{"user:" + con["user"],
+		"role:" + con["role"],
+		"type:" + con["type"],
+		"level:" + con["level"]}
+}
+
+// DisableSecOpt returns a security opt that can be used to disabling SELinux
+// labeling support for future container processes
+func DisableSecOpt() []string {
+	return []string{"disable"}
+}

vendor/github.com/opencontainers/selinux/go-selinux/xattrs.go

@@ -0,0 +1,78 @@
+// +build linux
+
+package selinux
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+var _zero uintptr
+
+// Returns a []byte slice if the xattr is set and nil otherwise
+// Requires path and its attribute as arguments
+func lgetxattr(path string, attr string) ([]byte, error) {
+	var sz int
+	pathBytes, err := syscall.BytePtrFromString(path)
+	if err != nil {
+		return nil, err
+	}
+	attrBytes, err := syscall.BytePtrFromString(attr)
+	if err != nil {
+		return nil, err
+	}
+
+	// Start with a 128 length byte array
+	sz = 128
+	dest := make([]byte, sz)
+	destBytes := unsafe.Pointer(&dest[0])
+	_sz, _, errno := syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
+
+	switch {
+	case errno == syscall.ENODATA:
+		return nil, errno
+	case errno == syscall.ENOTSUP:
+		return nil, errno
+	case errno == syscall.ERANGE:
+		// 128 byte array might just not be good enough,
+		// A dummy buffer is used ``uintptr(0)`` to get real size
+		// of the xattrs on disk
+		_sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(unsafe.Pointer(nil)), uintptr(0), 0, 0)
+		sz = int(_sz)
+		if sz < 0 {
+			return nil, errno
+		}
+		dest = make([]byte, sz)
+		destBytes := unsafe.Pointer(&dest[0])
+		_sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
+		if errno != 0 {
+			return nil, errno
+		}
+	case errno != 0:
+		return nil, errno
+	}
+	sz = int(_sz)
+	return dest[:sz], nil
+}
+
+func lsetxattr(path string, attr string, data []byte, flags int) error {
+	pathBytes, err := syscall.BytePtrFromString(path)
+	if err != nil {
+		return err
+	}
+	attrBytes, err := syscall.BytePtrFromString(attr)
+	if err != nil {
+		return err
+	}
+	var dataBytes unsafe.Pointer
+	if len(data) > 0 {
+		dataBytes = unsafe.Pointer(&data[0])
+	} else {
+		dataBytes = unsafe.Pointer(&_zero)
+	}
+	_, _, errno := syscall.Syscall6(syscall.SYS_LSETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(dataBytes), uintptr(len(data)), uintptr(flags), 0)
+	if errno != 0 {
+		return errno
+	}
+	return nil
+}