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Remove unused vendor. 

Signed-off-by: Daniel Nephin <dnephin@docker.com>
This commit is contained in:
Daniel Nephin 2017-08-29 13:22:17 -04:00
parent dae1b7112c
commit 8edd2dd3df
59 changed files with 0 additions and 5162 deletions
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1
vendor.conf
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@ -32,7 +32,6 @@ github.com/mitchellh/mapstructure f3009df150dadf309fdee4a54ed65c124afad715
github.com/opencontainers/go-digest a6d0ee40d4207ea02364bd3b9e8e77b9159ba1eb github.com/opencontainers/go-digest a6d0ee40d4207ea02364bd3b9e8e77b9159ba1eb
github.com/opencontainers/image-spec f03dbe35d449c54915d235f1a3cf8f585a24babe github.com/opencontainers/image-spec f03dbe35d449c54915d235f1a3cf8f585a24babe
github.com/opencontainers/runc 9c2d8d184e5da67c95d601382adf14862e4f2228 https://github.com/docker/runc.git github.com/opencontainers/runc 9c2d8d184e5da67c95d601382adf14862e4f2228 https://github.com/docker/runc.git
github.com/opencontainers/selinux v1.0.0-rc1
github.com/pkg/errors 839d9e913e063e28dfd0e6c7b7512793e0a48be9 github.com/pkg/errors 839d9e913e063e28dfd0e6c7b7512793e0a48be9
github.com/pmezard/go-difflib v1.0.0 github.com/pmezard/go-difflib v1.0.0
github.com/russross/blackfriday 1d6b8e9301e720b08a8938b8c25c018285885438 github.com/russross/blackfriday 1d6b8e9301e720b08a8938b8c25c018285885438

69
vendor/github.com/docker/docker/pkg/parsers/parsers.go generated vendored
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@ -1,69 +0,0 @@
// Package parsers provides helper functions to parse and validate different type
// of string. It can be hosts, unix addresses, tcp addresses, filters, kernel
// operating system versions.
package parsers
import (
"fmt"
"strconv"
"strings"
)
// ParseKeyValueOpt parses and validates the specified string as a key/value pair (key=value)
func ParseKeyValueOpt(opt string) (string, string, error) {
parts := strings.SplitN(opt, "=", 2)
if len(parts) != 2 {
return "", "", fmt.Errorf("Unable to parse key/value option: %s", opt)
}
return strings.TrimSpace(parts[0]), strings.TrimSpace(parts[1]), nil
}
// ParseUintList parses and validates the specified string as the value
// found in some cgroup file (e.g. `cpuset.cpus`, `cpuset.mems`), which could be
// one of the formats below. Note that duplicates are actually allowed in the
// input string. It returns a `map[int]bool` with available elements from `val`
// set to `true`.
// Supported formats:
// 7
// 1-6
// 0,3-4,7,8-10
// 0-0,0,1-7
// 03,1-3 <- this is gonna get parsed as [1,2,3]
// 3,2,1
// 0-2,3,1
func ParseUintList(val string) (map[int]bool, error) {
if val == "" {
return map[int]bool{}, nil
}
availableInts := make(map[int]bool)
split := strings.Split(val, ",")
errInvalidFormat := fmt.Errorf("invalid format: %s", val)
for _, r := range split {
if !strings.Contains(r, "-") {
v, err := strconv.Atoi(r)
if err != nil {
return nil, errInvalidFormat
}
availableInts[v] = true
} else {
split := strings.SplitN(r, "-", 2)
min, err := strconv.Atoi(split[0])
if err != nil {
return nil, errInvalidFormat
}
max, err := strconv.Atoi(split[1])
if err != nil {
return nil, errInvalidFormat
}
if max < min {
return nil, errInvalidFormat
}
for i := min; i <= max; i++ {
availableInts[i] = true
}
}
}
return availableInts, nil
}

1
vendor/github.com/docker/docker/pkg/sysinfo/README.md generated vendored
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@ -1 +0,0 @@
SysInfo stores information about which features a kernel supports.

12
vendor/github.com/docker/docker/pkg/sysinfo/numcpu.go generated vendored
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@ -1,12 +0,0 @@
// +build !linux,!windows
package sysinfo
import (
"runtime"
)
// NumCPU returns the number of CPUs
func NumCPU() int {
return runtime.NumCPU()
}

43
vendor/github.com/docker/docker/pkg/sysinfo/numcpu_linux.go generated vendored
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@ -1,43 +0,0 @@
// +build linux
package sysinfo
import (
"runtime"
"syscall"
"unsafe"
)
// numCPU queries the system for the count of threads available
// for use to this process.
//
// Issues two syscalls.
// Returns 0 on errors. Use |runtime.NumCPU| in that case.
func numCPU() int {
// Gets the affinity mask for a process: The very one invoking this function.
pid, _, _ := syscall.RawSyscall(syscall.SYS_GETPID, 0, 0, 0)
var mask [1024 / 64]uintptr
_, _, err := syscall.RawSyscall(syscall.SYS_SCHED_GETAFFINITY, pid, uintptr(len(mask)*8), uintptr(unsafe.Pointer(&mask[0])))
if err != 0 {
return 0
}
// For every available thread a bit is set in the mask.
ncpu := 0
for _, e := range mask {
if e == 0 {
continue
}
ncpu += int(popcnt(uint64(e)))
}
return ncpu
}
// NumCPU returns the number of CPUs which are currently online
func NumCPU() int {
if ncpu := numCPU(); ncpu > 0 {
return ncpu
}
return runtime.NumCPU()
}

37
vendor/github.com/docker/docker/pkg/sysinfo/numcpu_windows.go generated vendored
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@ -1,37 +0,0 @@
// +build windows
package sysinfo
import (
"runtime"
"unsafe"
"golang.org/x/sys/windows"
)
var (
kernel32 = windows.NewLazySystemDLL("kernel32.dll")
getCurrentProcess = kernel32.NewProc("GetCurrentProcess")
getProcessAffinityMask = kernel32.NewProc("GetProcessAffinityMask")
)
func numCPU() int {
// Gets the affinity mask for a process
var mask, sysmask uintptr
currentProcess, _, _ := getCurrentProcess.Call()
ret, _, _ := getProcessAffinityMask.Call(currentProcess, uintptr(unsafe.Pointer(&mask)), uintptr(unsafe.Pointer(&sysmask)))
if ret == 0 {
return 0
}
// For every available thread a bit is set in the mask.
ncpu := int(popcnt(uint64(mask)))
return ncpu
}
// NumCPU returns the number of CPUs which are currently online
func NumCPU() int {
if ncpu := numCPU(); ncpu > 0 {
return ncpu
}
return runtime.NumCPU()
}

144
vendor/github.com/docker/docker/pkg/sysinfo/sysinfo.go generated vendored
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@ -1,144 +0,0 @@
package sysinfo
import "github.com/docker/docker/pkg/parsers"
// SysInfo stores information about which features a kernel supports.
// TODO Windows: Factor out platform specific capabilities.
type SysInfo struct {
// Whether the kernel supports AppArmor or not
AppArmor bool
// Whether the kernel supports Seccomp or not
Seccomp bool
cgroupMemInfo
cgroupCPUInfo
cgroupBlkioInfo
cgroupCpusetInfo
cgroupPids
// Whether IPv4 forwarding is supported or not, if this was disabled, networking will not work
IPv4ForwardingDisabled bool
// Whether bridge-nf-call-iptables is supported or not
BridgeNFCallIPTablesDisabled bool
// Whether bridge-nf-call-ip6tables is supported or not
BridgeNFCallIP6TablesDisabled bool
// Whether the cgroup has the mountpoint of "devices" or not
CgroupDevicesEnabled bool
}
type cgroupMemInfo struct {
// Whether memory limit is supported or not
MemoryLimit bool
// Whether swap limit is supported or not
SwapLimit bool
// Whether soft limit is supported or not
MemoryReservation bool
// Whether OOM killer disable is supported or not
OomKillDisable bool
// Whether memory swappiness is supported or not
MemorySwappiness bool
// Whether kernel memory limit is supported or not
KernelMemory bool
}
type cgroupCPUInfo struct {
// Whether CPU shares is supported or not
CPUShares bool
// Whether CPU CFS(Completely Fair Scheduler) period is supported or not
CPUCfsPeriod bool
// Whether CPU CFS(Completely Fair Scheduler) quota is supported or not
CPUCfsQuota bool
// Whether CPU real-time period is supported or not
CPURealtimePeriod bool
// Whether CPU real-time runtime is supported or not
CPURealtimeRuntime bool
}
type cgroupBlkioInfo struct {
// Whether Block IO weight is supported or not
BlkioWeight bool
// Whether Block IO weight_device is supported or not
BlkioWeightDevice bool
// Whether Block IO read limit in bytes per second is supported or not
BlkioReadBpsDevice bool
// Whether Block IO write limit in bytes per second is supported or not
BlkioWriteBpsDevice bool
// Whether Block IO read limit in IO per second is supported or not
BlkioReadIOpsDevice bool
// Whether Block IO write limit in IO per second is supported or not
BlkioWriteIOpsDevice bool
}
type cgroupCpusetInfo struct {
// Whether Cpuset is supported or not
Cpuset bool
// Available Cpuset's cpus
Cpus string
// Available Cpuset's memory nodes
Mems string
}
type cgroupPids struct {
// Whether Pids Limit is supported or not
PidsLimit bool
}
// IsCpusetCpusAvailable returns `true` if the provided string set is contained
// in cgroup's cpuset.cpus set, `false` otherwise.
// If error is not nil a parsing error occurred.
func (c cgroupCpusetInfo) IsCpusetCpusAvailable(provided string) (bool, error) {
return isCpusetListAvailable(provided, c.Cpus)
}
// IsCpusetMemsAvailable returns `true` if the provided string set is contained
// in cgroup's cpuset.mems set, `false` otherwise.
// If error is not nil a parsing error occurred.
func (c cgroupCpusetInfo) IsCpusetMemsAvailable(provided string) (bool, error) {
return isCpusetListAvailable(provided, c.Mems)
}
func isCpusetListAvailable(provided, available string) (bool, error) {
parsedProvided, err := parsers.ParseUintList(provided)
if err != nil {
return false, err
}
parsedAvailable, err := parsers.ParseUintList(available)
if err != nil {
return false, err
}
for k := range parsedProvided {
if !parsedAvailable[k] {
return false, nil
}
}
return true, nil
}
// Returns bit count of 1, used by NumCPU
func popcnt(x uint64) (n byte) {
x -= (x >> 1) & 0x5555555555555555
x = (x>>2)&0x3333333333333333 + x&0x3333333333333333
x += x >> 4
x &= 0x0f0f0f0f0f0f0f0f
x *= 0x0101010101010101
return byte(x >> 56)
}

259
vendor/github.com/docker/docker/pkg/sysinfo/sysinfo_linux.go generated vendored
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@ -1,259 +0,0 @@
package sysinfo
import (
"fmt"
"io/ioutil"
"os"
"path"
"strings"
"syscall"
"github.com/Sirupsen/logrus"
"github.com/opencontainers/runc/libcontainer/cgroups"
)
const (
// SeccompModeFilter refers to the syscall argument SECCOMP_MODE_FILTER.
SeccompModeFilter = uintptr(2)
)
func findCgroupMountpoints() (map[string]string, error) {
cgMounts, err := cgroups.GetCgroupMounts(false)
if err != nil {
return nil, fmt.Errorf("Failed to parse cgroup information: %v", err)
}
mps := make(map[string]string)
for _, m := range cgMounts {
for _, ss := range m.Subsystems {
mps[ss] = m.Mountpoint
}
}
return mps, nil
}
// New returns a new SysInfo, using the filesystem to detect which features
// the kernel supports. If `quiet` is `false` warnings are printed in logs
// whenever an error occurs or misconfigurations are present.
func New(quiet bool) *SysInfo {
sysInfo := &SysInfo{}
cgMounts, err := findCgroupMountpoints()
if err != nil {
logrus.Warnf("Failed to parse cgroup information: %v", err)
} else {
sysInfo.cgroupMemInfo = checkCgroupMem(cgMounts, quiet)
sysInfo.cgroupCPUInfo = checkCgroupCPU(cgMounts, quiet)
sysInfo.cgroupBlkioInfo = checkCgroupBlkioInfo(cgMounts, quiet)
sysInfo.cgroupCpusetInfo = checkCgroupCpusetInfo(cgMounts, quiet)
sysInfo.cgroupPids = checkCgroupPids(quiet)
}
_, ok := cgMounts["devices"]
sysInfo.CgroupDevicesEnabled = ok
sysInfo.IPv4ForwardingDisabled = !readProcBool("/proc/sys/net/ipv4/ip_forward")
sysInfo.BridgeNFCallIPTablesDisabled = !readProcBool("/proc/sys/net/bridge/bridge-nf-call-iptables")
sysInfo.BridgeNFCallIP6TablesDisabled = !readProcBool("/proc/sys/net/bridge/bridge-nf-call-ip6tables")
// Check if AppArmor is supported.
if _, err := os.Stat("/sys/kernel/security/apparmor"); !os.IsNotExist(err) {
sysInfo.AppArmor = true
}
// Check if Seccomp is supported, via CONFIG_SECCOMP.
if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_GET_SECCOMP, 0, 0); err != syscall.EINVAL {
// Make sure the kernel has CONFIG_SECCOMP_FILTER.
if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_SECCOMP, SeccompModeFilter, 0); err != syscall.EINVAL {
sysInfo.Seccomp = true
}
}
return sysInfo
}
// checkCgroupMem reads the memory information from the memory cgroup mount point.
func checkCgroupMem(cgMounts map[string]string, quiet bool) cgroupMemInfo {
mountPoint, ok := cgMounts["memory"]
if !ok {
if !quiet {
logrus.Warn("Your kernel does not support cgroup memory limit")
}
return cgroupMemInfo{}
}
swapLimit := cgroupEnabled(mountPoint, "memory.memsw.limit_in_bytes")
if !quiet && !swapLimit {
logrus.Warn("Your kernel does not support swap memory limit")
}
memoryReservation := cgroupEnabled(mountPoint, "memory.soft_limit_in_bytes")
if !quiet && !memoryReservation {
logrus.Warn("Your kernel does not support memory reservation")
}
oomKillDisable := cgroupEnabled(mountPoint, "memory.oom_control")
if !quiet && !oomKillDisable {
logrus.Warn("Your kernel does not support oom control")
}
memorySwappiness := cgroupEnabled(mountPoint, "memory.swappiness")
if !quiet && !memorySwappiness {
logrus.Warn("Your kernel does not support memory swappiness")
}
kernelMemory := cgroupEnabled(mountPoint, "memory.kmem.limit_in_bytes")
if !quiet && !kernelMemory {
logrus.Warn("Your kernel does not support kernel memory limit")
}
return cgroupMemInfo{
MemoryLimit: true,
SwapLimit: swapLimit,
MemoryReservation: memoryReservation,
OomKillDisable: oomKillDisable,
MemorySwappiness: memorySwappiness,
KernelMemory: kernelMemory,
}
}
// checkCgroupCPU reads the cpu information from the cpu cgroup mount point.
func checkCgroupCPU(cgMounts map[string]string, quiet bool) cgroupCPUInfo {
mountPoint, ok := cgMounts["cpu"]
if !ok {
if !quiet {
logrus.Warn("Unable to find cpu cgroup in mounts")
}
return cgroupCPUInfo{}
}
cpuShares := cgroupEnabled(mountPoint, "cpu.shares")
if !quiet && !cpuShares {
logrus.Warn("Your kernel does not support cgroup cpu shares")
}
cpuCfsPeriod := cgroupEnabled(mountPoint, "cpu.cfs_period_us")
if !quiet && !cpuCfsPeriod {
logrus.Warn("Your kernel does not support cgroup cfs period")
}
cpuCfsQuota := cgroupEnabled(mountPoint, "cpu.cfs_quota_us")
if !quiet && !cpuCfsQuota {
logrus.Warn("Your kernel does not support cgroup cfs quotas")
}
cpuRealtimePeriod := cgroupEnabled(mountPoint, "cpu.rt_period_us")
if !quiet && !cpuRealtimePeriod {
logrus.Warn("Your kernel does not support cgroup rt period")
}
cpuRealtimeRuntime := cgroupEnabled(mountPoint, "cpu.rt_runtime_us")
if !quiet && !cpuRealtimeRuntime {
logrus.Warn("Your kernel does not support cgroup rt runtime")
}
return cgroupCPUInfo{
CPUShares: cpuShares,
CPUCfsPeriod: cpuCfsPeriod,
CPUCfsQuota: cpuCfsQuota,
CPURealtimePeriod: cpuRealtimePeriod,
CPURealtimeRuntime: cpuRealtimeRuntime,
}
}
// checkCgroupBlkioInfo reads the blkio information from the blkio cgroup mount point.
func checkCgroupBlkioInfo(cgMounts map[string]string, quiet bool) cgroupBlkioInfo {
mountPoint, ok := cgMounts["blkio"]
if !ok {
if !quiet {
logrus.Warn("Unable to find blkio cgroup in mounts")
}
return cgroupBlkioInfo{}
}
weight := cgroupEnabled(mountPoint, "blkio.weight")
if !quiet && !weight {
logrus.Warn("Your kernel does not support cgroup blkio weight")
}
weightDevice := cgroupEnabled(mountPoint, "blkio.weight_device")
if !quiet && !weightDevice {
logrus.Warn("Your kernel does not support cgroup blkio weight_device")
}
readBpsDevice := cgroupEnabled(mountPoint, "blkio.throttle.read_bps_device")
if !quiet && !readBpsDevice {
logrus.Warn("Your kernel does not support cgroup blkio throttle.read_bps_device")
}
writeBpsDevice := cgroupEnabled(mountPoint, "blkio.throttle.write_bps_device")
if !quiet && !writeBpsDevice {
logrus.Warn("Your kernel does not support cgroup blkio throttle.write_bps_device")
}
readIOpsDevice := cgroupEnabled(mountPoint, "blkio.throttle.read_iops_device")
if !quiet && !readIOpsDevice {
logrus.Warn("Your kernel does not support cgroup blkio throttle.read_iops_device")
}
writeIOpsDevice := cgroupEnabled(mountPoint, "blkio.throttle.write_iops_device")
if !quiet && !writeIOpsDevice {
logrus.Warn("Your kernel does not support cgroup blkio throttle.write_iops_device")
}
return cgroupBlkioInfo{
BlkioWeight: weight,
BlkioWeightDevice: weightDevice,
BlkioReadBpsDevice: readBpsDevice,
BlkioWriteBpsDevice: writeBpsDevice,
BlkioReadIOpsDevice: readIOpsDevice,
BlkioWriteIOpsDevice: writeIOpsDevice,
}
}
// checkCgroupCpusetInfo reads the cpuset information from the cpuset cgroup mount point.
func checkCgroupCpusetInfo(cgMounts map[string]string, quiet bool) cgroupCpusetInfo {
mountPoint, ok := cgMounts["cpuset"]
if !ok {
if !quiet {
logrus.Warn("Unable to find cpuset cgroup in mounts")
}
return cgroupCpusetInfo{}
}
cpus, err := ioutil.ReadFile(path.Join(mountPoint, "cpuset.cpus"))
if err != nil {
return cgroupCpusetInfo{}
}
mems, err := ioutil.ReadFile(path.Join(mountPoint, "cpuset.mems"))
if err != nil {
return cgroupCpusetInfo{}
}
return cgroupCpusetInfo{
Cpuset: true,
Cpus: strings.TrimSpace(string(cpus)),
Mems: strings.TrimSpace(string(mems)),
}
}
// checkCgroupPids reads the pids information from the pids cgroup mount point.
func checkCgroupPids(quiet bool) cgroupPids {
_, err := cgroups.FindCgroupMountpoint("pids")
if err != nil {
if !quiet {
logrus.Warn(err)
}
return cgroupPids{}
}
return cgroupPids{
PidsLimit: true,
}
}
func cgroupEnabled(mountPoint, name string) bool {
_, err := os.Stat(path.Join(mountPoint, name))
return err == nil
}
func readProcBool(path string) bool {
val, err := ioutil.ReadFile(path)
if err != nil {
return false
}
return strings.TrimSpace(string(val)) == "1"
}

121
vendor/github.com/docker/docker/pkg/sysinfo/sysinfo_solaris.go generated vendored
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@ -1,121 +0,0 @@
// +build solaris,cgo
package sysinfo
import (
"bytes"
"os/exec"
"strconv"
"strings"
)
/*
#cgo LDFLAGS: -llgrp
#include <unistd.h>
#include <stdlib.h>
#include <sys/lgrp_user.h>
int getLgrpCount() {
lgrp_cookie_t lgrpcookie = LGRP_COOKIE_NONE;
uint_t nlgrps;
if ((lgrpcookie = lgrp_init(LGRP_VIEW_OS)) == LGRP_COOKIE_NONE) {
return -1;
}
nlgrps = lgrp_nlgrps(lgrpcookie);
return nlgrps;
}
*/
import "C"
// IsCPUSharesAvailable returns whether CPUShares setting is supported.
// We need FSS to be set as default scheduling class to support CPU Shares
func IsCPUSharesAvailable() bool {
cmd := exec.Command("/usr/sbin/dispadmin", "-d")
outBuf := new(bytes.Buffer)
errBuf := new(bytes.Buffer)
cmd.Stderr = errBuf
cmd.Stdout = outBuf
if err := cmd.Run(); err != nil {
return false
}
return (strings.Contains(outBuf.String(), "FSS"))
}
// New returns a new SysInfo, using the filesystem to detect which features
// the kernel supports.
//NOTE Solaris: If we change the below capabilities be sure
// to update verifyPlatformContainerSettings() in daemon_solaris.go
func New(quiet bool) *SysInfo {
sysInfo := &SysInfo{}
sysInfo.cgroupMemInfo = setCgroupMem(quiet)
sysInfo.cgroupCPUInfo = setCgroupCPU(quiet)
sysInfo.cgroupBlkioInfo = setCgroupBlkioInfo(quiet)
sysInfo.cgroupCpusetInfo = setCgroupCPUsetInfo(quiet)
sysInfo.IPv4ForwardingDisabled = false
sysInfo.AppArmor = false
return sysInfo
}
// setCgroupMem reads the memory information for Solaris.
func setCgroupMem(quiet bool) cgroupMemInfo {
return cgroupMemInfo{
MemoryLimit: true,
SwapLimit: true,
MemoryReservation: false,
OomKillDisable: false,
MemorySwappiness: false,
KernelMemory: false,
}
}
// setCgroupCPU reads the cpu information for Solaris.
func setCgroupCPU(quiet bool) cgroupCPUInfo {
return cgroupCPUInfo{
CPUShares: true,
CPUCfsPeriod: false,
CPUCfsQuota: true,
CPURealtimePeriod: false,
CPURealtimeRuntime: false,
}
}
// blkio switches are not supported in Solaris.
func setCgroupBlkioInfo(quiet bool) cgroupBlkioInfo {
return cgroupBlkioInfo{
BlkioWeight: false,
BlkioWeightDevice: false,
}
}
// setCgroupCPUsetInfo reads the cpuset information for Solaris.
func setCgroupCPUsetInfo(quiet bool) cgroupCpusetInfo {
return cgroupCpusetInfo{
Cpuset: true,
Cpus: getCPUCount(),
Mems: getLgrpCount(),
}
}
func getCPUCount() string {
ncpus := C.sysconf(C._SC_NPROCESSORS_ONLN)
if ncpus <= 0 {
return ""
}
return strconv.FormatInt(int64(ncpus), 16)
}
func getLgrpCount() string {
nlgrps := C.getLgrpCount()
if nlgrps <= 0 {
return ""
}
return strconv.FormatInt(int64(nlgrps), 16)
}

9
vendor/github.com/docker/docker/pkg/sysinfo/sysinfo_unix.go generated vendored
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@ -1,9 +0,0 @@
// +build !linux,!solaris,!windows
package sysinfo
// New returns an empty SysInfo for non linux nor solaris for now.
func New(quiet bool) *SysInfo {
sysInfo := &SysInfo{}
return sysInfo
}

9
vendor/github.com/docker/docker/pkg/sysinfo/sysinfo_windows.go generated vendored
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@ -1,9 +0,0 @@
// +build windows
package sysinfo
// New returns an empty SysInfo for windows for now.
func New(quiet bool) *SysInfo {
sysInfo := &SysInfo{}
return sysInfo
}

108
vendor/github.com/docker/docker/runconfig/config.go generated vendored
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@ -1,108 +0,0 @@
package runconfig
import (
"encoding/json"
"fmt"
"io"
"github.com/docker/docker/api/types/container"
networktypes "github.com/docker/docker/api/types/network"
"github.com/docker/docker/pkg/sysinfo"
"github.com/docker/docker/volume"
)
// ContainerDecoder implements httputils.ContainerDecoder
// calling DecodeContainerConfig.
type ContainerDecoder struct{}
// DecodeConfig makes ContainerDecoder to implement httputils.ContainerDecoder
func (r ContainerDecoder) DecodeConfig(src io.Reader) (*container.Config, *container.HostConfig, *networktypes.NetworkingConfig, error) {
return DecodeContainerConfig(src)
}
// DecodeHostConfig makes ContainerDecoder to implement httputils.ContainerDecoder
func (r ContainerDecoder) DecodeHostConfig(src io.Reader) (*container.HostConfig, error) {
return DecodeHostConfig(src)
}
// DecodeContainerConfig decodes a json encoded config into a ContainerConfigWrapper
// struct and returns both a Config and a HostConfig struct
// Be aware this function is not checking whether the resulted structs are nil,
// it's your business to do so
func DecodeContainerConfig(src io.Reader) (*container.Config, *container.HostConfig, *networktypes.NetworkingConfig, error) {
var w ContainerConfigWrapper
decoder := json.NewDecoder(src)
if err := decoder.Decode(&w); err != nil {
return nil, nil, nil, err
}
hc := w.getHostConfig()
// Perform platform-specific processing of Volumes and Binds.
if w.Config != nil && hc != nil {
// Initialize the volumes map if currently nil
if w.Config.Volumes == nil {
w.Config.Volumes = make(map[string]struct{})
}
// Now validate all the volumes and binds
if err := validateMountSettings(w.Config, hc); err != nil {
return nil, nil, nil, err
}
}
// Certain parameters need daemon-side validation that cannot be done
// on the client, as only the daemon knows what is valid for the platform.
if err := validateNetMode(w.Config, hc); err != nil {
return nil, nil, nil, err
}
// Validate isolation
if err := validateIsolation(hc); err != nil {
return nil, nil, nil, err
}
// Validate QoS
if err := validateQoS(hc); err != nil {
return nil, nil, nil, err
}
// Validate Resources
if err := validateResources(hc, sysinfo.New(true)); err != nil {
return nil, nil, nil, err
}
// Validate Privileged
if err := validatePrivileged(hc); err != nil {
return nil, nil, nil, err
}
// Validate ReadonlyRootfs
if err := validateReadonlyRootfs(hc); err != nil {
return nil, nil, nil, err
}
return w.Config, hc, w.NetworkingConfig, nil
}
// validateMountSettings validates each of the volumes and bind settings
// passed by the caller to ensure they are valid.
func validateMountSettings(c *container.Config, hc *container.HostConfig) error {
// it is ok to have len(hc.Mounts) > 0 && (len(hc.Binds) > 0 || len (c.Volumes) > 0 || len (hc.Tmpfs) > 0 )
// Ensure all volumes and binds are valid.
for spec := range c.Volumes {
if _, err := volume.ParseMountRaw(spec, hc.VolumeDriver); err != nil {
return fmt.Errorf("invalid volume spec %q: %v", spec, err)
}
}
for _, spec := range hc.Binds {
if _, err := volume.ParseMountRaw(spec, hc.VolumeDriver); err != nil {
return fmt.Errorf("invalid bind mount spec %q: %v", spec, err)
}
}
return nil
}

59
vendor/github.com/docker/docker/runconfig/config_unix.go generated vendored
View File

@ -1,59 +0,0 @@
// +build !windows
package runconfig
import (
"github.com/docker/docker/api/types/container"
networktypes "github.com/docker/docker/api/types/network"
)
// ContainerConfigWrapper is a Config wrapper that holds the container Config (portable)
// and the corresponding HostConfig (non-portable).
type ContainerConfigWrapper struct {
*container.Config
InnerHostConfig *container.HostConfig `json:"HostConfig,omitempty"`
Cpuset string `json:",omitempty"` // Deprecated. Exported for backwards compatibility.
NetworkingConfig *networktypes.NetworkingConfig `json:"NetworkingConfig,omitempty"`
*container.HostConfig // Deprecated. Exported to read attributes from json that are not in the inner host config structure.
}
// getHostConfig gets the HostConfig of the Config.
// It's mostly there to handle Deprecated fields of the ContainerConfigWrapper
func (w *ContainerConfigWrapper) getHostConfig() *container.HostConfig {
hc := w.HostConfig
if hc == nil && w.InnerHostConfig != nil {
hc = w.InnerHostConfig
} else if w.InnerHostConfig != nil {
if hc.Memory != 0 && w.InnerHostConfig.Memory == 0 {
w.InnerHostConfig.Memory = hc.Memory
}
if hc.MemorySwap != 0 && w.InnerHostConfig.MemorySwap == 0 {
w.InnerHostConfig.MemorySwap = hc.MemorySwap
}
if hc.CPUShares != 0 && w.InnerHostConfig.CPUShares == 0 {
w.InnerHostConfig.CPUShares = hc.CPUShares
}
if hc.CpusetCpus != "" && w.InnerHostConfig.CpusetCpus == "" {
w.InnerHostConfig.CpusetCpus = hc.CpusetCpus
}
if hc.VolumeDriver != "" && w.InnerHostConfig.VolumeDriver == "" {
w.InnerHostConfig.VolumeDriver = hc.VolumeDriver
}
hc = w.InnerHostConfig
}
if hc != nil {
if w.Cpuset != "" && hc.CpusetCpus == "" {
hc.CpusetCpus = w.Cpuset
}
}
// Make sure NetworkMode has an acceptable value. We do this to ensure
// backwards compatible API behavior.
SetDefaultNetModeIfBlank(hc)
return hc
}

19
vendor/github.com/docker/docker/runconfig/config_windows.go generated vendored
View File

@ -1,19 +0,0 @@
package runconfig
import (
"github.com/docker/docker/api/types/container"
networktypes "github.com/docker/docker/api/types/network"
)
// ContainerConfigWrapper is a Config wrapper that holds the container Config (portable)
// and the corresponding HostConfig (non-portable).
type ContainerConfigWrapper struct {
*container.Config
HostConfig *container.HostConfig `json:"HostConfig,omitempty"`
NetworkingConfig *networktypes.NetworkingConfig `json:"NetworkingConfig,omitempty"`
}
// getHostConfig gets the HostConfig of the Config.
func (w *ContainerConfigWrapper) getHostConfig() *container.HostConfig {
return w.HostConfig
}

38
vendor/github.com/docker/docker/runconfig/errors.go generated vendored
View File

@ -1,38 +0,0 @@
package runconfig
import (
"fmt"
)
var (
// ErrConflictContainerNetworkAndLinks conflict between --net=container and links
ErrConflictContainerNetworkAndLinks = fmt.Errorf("conflicting options: container type network can't be used with links. This would result in undefined behavior")
// ErrConflictSharedNetwork conflict between private and other networks
ErrConflictSharedNetwork = fmt.Errorf("container sharing network namespace with another container or host cannot be connected to any other network")
// ErrConflictHostNetwork conflict from being disconnected from host network or connected to host network.
ErrConflictHostNetwork = fmt.Errorf("container cannot be disconnected from host network or connected to host network")
// ErrConflictNoNetwork conflict between private and other networks
ErrConflictNoNetwork = fmt.Errorf("container cannot be connected to multiple networks with one of the networks in private (none) mode")
// ErrConflictNetworkAndDNS conflict between --dns and the network mode
ErrConflictNetworkAndDNS = fmt.Errorf("conflicting options: dns and the network mode")
// ErrConflictNetworkHostname conflict between the hostname and the network mode
ErrConflictNetworkHostname = fmt.Errorf("conflicting options: hostname and the network mode")
// ErrConflictHostNetworkAndLinks conflict between --net=host and links
ErrConflictHostNetworkAndLinks = fmt.Errorf("conflicting options: host type networking can't be used with links. This would result in undefined behavior")
// ErrConflictContainerNetworkAndMac conflict between the mac address and the network mode
ErrConflictContainerNetworkAndMac = fmt.Errorf("conflicting options: mac-address and the network mode")
// ErrConflictNetworkHosts conflict between add-host and the network mode
ErrConflictNetworkHosts = fmt.Errorf("conflicting options: custom host-to-IP mapping and the network mode")
// ErrConflictNetworkPublishPorts conflict between the publish options and the network mode
ErrConflictNetworkPublishPorts = fmt.Errorf("conflicting options: port publishing and the container type network mode")
// ErrConflictNetworkExposePorts conflict between the expose option and the network mode
ErrConflictNetworkExposePorts = fmt.Errorf("conflicting options: port exposing and the container type network mode")
// ErrUnsupportedNetworkAndIP conflict between network mode and requested ip address
ErrUnsupportedNetworkAndIP = fmt.Errorf("user specified IP address is supported on user defined networks only")
// ErrUnsupportedNetworkNoSubnetAndIP conflict between network with no configured subnet and requested ip address
ErrUnsupportedNetworkNoSubnetAndIP = fmt.Errorf("user specified IP address is supported only when connecting to networks with user configured subnets")
// ErrUnsupportedNetworkAndAlias conflict between network mode and alias
ErrUnsupportedNetworkAndAlias = fmt.Errorf("network-scoped alias is supported only for containers in user defined networks")
// ErrConflictUTSHostname conflict between the hostname and the UTS mode
ErrConflictUTSHostname = fmt.Errorf("conflicting options: hostname and the UTS mode")
)

80
vendor/github.com/docker/docker/runconfig/hostconfig.go generated vendored
View File

@ -1,80 +0,0 @@
package runconfig
import (
"encoding/json"
"fmt"
"io"
"strings"
"github.com/docker/docker/api/types/container"
)
// DecodeHostConfig creates a HostConfig based on the specified Reader.
// It assumes the content of the reader will be JSON, and decodes it.
func DecodeHostConfig(src io.Reader) (*container.HostConfig, error) {
decoder := json.NewDecoder(src)
var w ContainerConfigWrapper
if err := decoder.Decode(&w); err != nil {
return nil, err
}
hc := w.getHostConfig()
return hc, nil
}
// SetDefaultNetModeIfBlank changes the NetworkMode in a HostConfig structure
// to default if it is not populated. This ensures backwards compatibility after
// the validation of the network mode was moved from the docker CLI to the
// docker daemon.
func SetDefaultNetModeIfBlank(hc *container.HostConfig) {
if hc != nil {
if hc.NetworkMode == container.NetworkMode("") {
hc.NetworkMode = container.NetworkMode("default")
}
}
}
// validateNetContainerMode ensures that the various combinations of requested
// network settings wrt container mode are valid.
func validateNetContainerMode(c *container.Config, hc *container.HostConfig) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
parts := strings.Split(string(hc.NetworkMode), ":")
if parts[0] == "container" {
if len(parts) < 2 || parts[1] == "" {
return fmt.Errorf("Invalid network mode: invalid container format container:<name|id>")
}
}
if hc.NetworkMode.IsContainer() && c.Hostname != "" {
return ErrConflictNetworkHostname
}
if hc.NetworkMode.IsContainer() && len(hc.Links) > 0 {
return ErrConflictContainerNetworkAndLinks
}
if hc.NetworkMode.IsContainer() && len(hc.DNS) > 0 {
return ErrConflictNetworkAndDNS
}
if hc.NetworkMode.IsContainer() && len(hc.ExtraHosts) > 0 {
return ErrConflictNetworkHosts
}
if (hc.NetworkMode.IsContainer() || hc.NetworkMode.IsHost()) && c.MacAddress != "" {
return ErrConflictContainerNetworkAndMac
}
if hc.NetworkMode.IsContainer() && (len(hc.PortBindings) > 0 || hc.PublishAllPorts == true) {
return ErrConflictNetworkPublishPorts
}
if hc.NetworkMode.IsContainer() && len(c.ExposedPorts) > 0 {
return ErrConflictNetworkExposePorts
}
return nil
}

46
vendor/github.com/docker/docker/runconfig/hostconfig_solaris.go generated vendored
View File

@ -1,46 +0,0 @@
package runconfig
import (
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/pkg/sysinfo"
)
// DefaultDaemonNetworkMode returns the default network stack the daemon should
// use.
func DefaultDaemonNetworkMode() container.NetworkMode {
return container.NetworkMode("bridge")
}
// IsPreDefinedNetwork indicates if a network is predefined by the daemon
func IsPreDefinedNetwork(network string) bool {
return false
}
// validateNetMode ensures that the various combinations of requested
// network settings are valid.
func validateNetMode(c *container.Config, hc *container.HostConfig) error {
// We may not be passed a host config, such as in the case of docker commit
return nil
}
// validateIsolation performs platform specific validation of the
// isolation level in the hostconfig structure.
// This setting is currently discarded for Solaris so this is a no-op.
func validateIsolation(hc *container.HostConfig) error {
return nil
}
// validateQoS performs platform specific validation of the QoS settings
func validateQoS(hc *container.HostConfig) error {
return nil
}
// validateResources performs platform specific validation of the resource settings
func validateResources(hc *container.HostConfig, si *sysinfo.SysInfo) error {
return nil
}
// validatePrivileged performs platform specific validation of the Privileged setting
func validatePrivileged(hc *container.HostConfig) error {
return nil
}

110
vendor/github.com/docker/docker/runconfig/hostconfig_unix.go generated vendored
View File

@ -1,110 +0,0 @@
// +build !windows,!solaris
package runconfig
import (
"fmt"
"runtime"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/pkg/sysinfo"
)
// DefaultDaemonNetworkMode returns the default network stack the daemon should
// use.
func DefaultDaemonNetworkMode() container.NetworkMode {
return container.NetworkMode("bridge")
}
// IsPreDefinedNetwork indicates if a network is predefined by the daemon
func IsPreDefinedNetwork(network string) bool {
n := container.NetworkMode(network)
return n.IsBridge() || n.IsHost() || n.IsNone() || n.IsDefault()
}
// validateNetMode ensures that the various combinations of requested
// network settings are valid.
func validateNetMode(c *container.Config, hc *container.HostConfig) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
err := validateNetContainerMode(c, hc)
if err != nil {
return err
}
if hc.UTSMode.IsHost() && c.Hostname != "" {
return ErrConflictUTSHostname
}
if hc.NetworkMode.IsHost() && len(hc.Links) > 0 {
return ErrConflictHostNetworkAndLinks
}
return nil
}
// validateIsolation performs platform specific validation of
// isolation in the hostconfig structure. Linux only supports "default"
// which is LXC container isolation
func validateIsolation(hc *container.HostConfig) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
if !hc.Isolation.IsValid() {
return fmt.Errorf("Invalid isolation: %q - %s only supports 'default'", hc.Isolation, runtime.GOOS)
}
return nil
}
// validateQoS performs platform specific validation of the QoS settings
func validateQoS(hc *container.HostConfig) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
if hc.IOMaximumBandwidth != 0 {
return fmt.Errorf("Invalid QoS settings: %s does not support configuration of maximum bandwidth", runtime.GOOS)
}
if hc.IOMaximumIOps != 0 {
return fmt.Errorf("Invalid QoS settings: %s does not support configuration of maximum IOPs", runtime.GOOS)
}
return nil
}
// validateResources performs platform specific validation of the resource settings
// cpu-rt-runtime and cpu-rt-period can not be greater than their parent, cpu-rt-runtime requires sys_nice
func validateResources(hc *container.HostConfig, si *sysinfo.SysInfo) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
if hc.Resources.CPURealtimePeriod > 0 && !si.CPURealtimePeriod {
return fmt.Errorf("Your kernel does not support cgroup cpu real-time period")
}
if hc.Resources.CPURealtimeRuntime > 0 && !si.CPURealtimeRuntime {
return fmt.Errorf("Your kernel does not support cgroup cpu real-time runtime")
}
if hc.Resources.CPURealtimePeriod != 0 && hc.Resources.CPURealtimeRuntime != 0 && hc.Resources.CPURealtimeRuntime > hc.Resources.CPURealtimePeriod {
return fmt.Errorf("cpu real-time runtime cannot be higher than cpu real-time period")
}
return nil
}
// validatePrivileged performs platform specific validation of the Privileged setting
func validatePrivileged(hc *container.HostConfig) error {
return nil
}
// validateReadonlyRootfs performs platform specific validation of the ReadonlyRootfs setting
func validateReadonlyRootfs(hc *container.HostConfig) error {
return nil
}

96
vendor/github.com/docker/docker/runconfig/hostconfig_windows.go generated vendored
View File

@ -1,96 +0,0 @@
package runconfig
import (
"fmt"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/pkg/sysinfo"
)
// DefaultDaemonNetworkMode returns the default network stack the daemon should
// use.
func DefaultDaemonNetworkMode() container.NetworkMode {
return container.NetworkMode("nat")
}
// IsPreDefinedNetwork indicates if a network is predefined by the daemon
func IsPreDefinedNetwork(network string) bool {
return !container.NetworkMode(network).IsUserDefined()
}
// validateNetMode ensures that the various combinations of requested
// network settings are valid.
func validateNetMode(c *container.Config, hc *container.HostConfig) error {
if hc == nil {
return nil
}
err := validateNetContainerMode(c, hc)
if err != nil {
return err
}
if hc.NetworkMode.IsContainer() && hc.Isolation.IsHyperV() {
return fmt.Errorf("Using the network stack of another container is not supported while using Hyper-V Containers")
}
return nil
}
// validateIsolation performs platform specific validation of the
// isolation in the hostconfig structure. Windows supports 'default' (or
// blank), 'process', or 'hyperv'.
func validateIsolation(hc *container.HostConfig) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
if !hc.Isolation.IsValid() {
return fmt.Errorf("Invalid isolation: %q. Windows supports 'default', 'process', or 'hyperv'", hc.Isolation)
}
return nil
}
// validateQoS performs platform specific validation of the Qos settings
func validateQoS(hc *container.HostConfig) error {
return nil
}
// validateResources performs platform specific validation of the resource settings
func validateResources(hc *container.HostConfig, si *sysinfo.SysInfo) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
if hc.Resources.CPURealtimePeriod != 0 {
return fmt.Errorf("Windows does not support CPU real-time period")
}
if hc.Resources.CPURealtimeRuntime != 0 {
return fmt.Errorf("Windows does not support CPU real-time runtime")
}
return nil
}
// validatePrivileged performs platform specific validation of the Privileged setting
func validatePrivileged(hc *container.HostConfig) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
if hc.Privileged {
return fmt.Errorf("Windows does not support privileged mode")
}
return nil
}
// validateReadonlyRootfs performs platform specific validation of the ReadonlyRootfs setting
func validateReadonlyRootfs(hc *container.HostConfig) error {
// We may not be passed a host config, such as in the case of docker commit
if hc == nil {
return nil
}
if hc.ReadonlyRootfs {
return fmt.Errorf("Windows does not support root filesystem in read-only mode")
}
return nil
}

140
vendor/github.com/docker/docker/volume/validate.go generated vendored
View File

@ -1,140 +0,0 @@
package volume
import (
"errors"
"fmt"
"os"
"path/filepath"
"github.com/docker/docker/api/types/mount"
)
var errBindNotExist = errors.New("bind source path does not exist")
type validateOpts struct {
skipBindSourceCheck bool
skipAbsolutePathCheck bool
}
func validateMountConfig(mnt *mount.Mount, options ...func(*validateOpts)) error {
opts := validateOpts{}
for _, o := range options {
o(&opts)
}
if len(mnt.Target) == 0 {
return &errMountConfig{mnt, errMissingField("Target")}
}
if err := validateNotRoot(mnt.Target); err != nil {
return &errMountConfig{mnt, err}
}
if !opts.skipAbsolutePathCheck {
if err := validateAbsolute(mnt.Target); err != nil {
return &errMountConfig{mnt, err}
}
}
switch mnt.Type {
case mount.TypeBind:
if len(mnt.Source) == 0 {
return &errMountConfig{mnt, errMissingField("Source")}
}
// Don't error out just because the propagation mode is not supported on the platform
if opts := mnt.BindOptions; opts != nil {
if len(opts.Propagation) > 0 && len(propagationModes) > 0 {
if _, ok := propagationModes[opts.Propagation]; !ok {
return &errMountConfig{mnt, fmt.Errorf("invalid propagation mode: %s", opts.Propagation)}
}
}
}
if mnt.VolumeOptions != nil {
return &errMountConfig{mnt, errExtraField("VolumeOptions")}
}
if err := validateAbsolute(mnt.Source); err != nil {
return &errMountConfig{mnt, err}
}
// Do not allow binding to non-existent path
if !opts.skipBindSourceCheck {
fi, err := os.Stat(mnt.Source)
if err != nil {
if !os.IsNotExist(err) {
return &errMountConfig{mnt, err}
}
return &errMountConfig{mnt, errBindNotExist}
}
if err := validateStat(fi); err != nil {
return &errMountConfig{mnt, err}
}
}
case mount.TypeVolume:
if mnt.BindOptions != nil {
return &errMountConfig{mnt, errExtraField("BindOptions")}
}
if len(mnt.Source) == 0 && mnt.ReadOnly {
return &errMountConfig{mnt, fmt.Errorf("must not set ReadOnly mode when using anonymous volumes")}
}
if len(mnt.Source) != 0 {
if valid, err := IsVolumeNameValid(mnt.Source); !valid {
if err == nil {
err = errors.New("invalid volume name")
}
return &errMountConfig{mnt, err}
}
}
case mount.TypeTmpfs:
if len(mnt.Source) != 0 {
return &errMountConfig{mnt, errExtraField("Source")}
}
if err := ValidateTmpfsMountDestination(mnt.Target); err != nil {
return &errMountConfig{mnt, err}
}
if _, err := ConvertTmpfsOptions(mnt.TmpfsOptions, mnt.ReadOnly); err != nil {
return &errMountConfig{mnt, err}
}
default:
return &errMountConfig{mnt, errors.New("mount type unknown")}
}
return nil
}
type errMountConfig struct {
mount *mount.Mount
err error
}
func (e *errMountConfig) Error() string {
return fmt.Sprintf("invalid mount config for type %q: %v", e.mount.Type, e.err.Error())
}
func errExtraField(name string) error {
return fmt.Errorf("field %s must not be specified", name)
}
func errMissingField(name string) error {
return fmt.Errorf("field %s must not be empty", name)
}
func validateAbsolute(p string) error {
p = convertSlash(p)
if filepath.IsAbs(p) {
return nil
}
return fmt.Errorf("invalid mount path: '%s' mount path must be absolute", p)
}
// ValidateTmpfsMountDestination validates the destination of tmpfs mount.
// Currently, we have only two obvious rule for validation:
// - path must not be "/"
// - path must be absolute
// We should add more rules carefully (#30166)
func ValidateTmpfsMountDestination(dest string) error {
if err := validateNotRoot(dest); err != nil {
return err
}
return validateAbsolute(dest)
}

8
vendor/github.com/docker/docker/volume/validate_test_unix.go generated vendored
View File

@ -1,8 +0,0 @@
// +build !windows
package volume
var (
testDestinationPath = "/foo"
testSourcePath = "/foo"
)

6
vendor/github.com/docker/docker/volume/validate_test_windows.go generated vendored
View File

@ -1,6 +0,0 @@
package volume
var (
testDestinationPath = `c:\foo`
testSourcePath = `c:\foo`
)

374
vendor/github.com/docker/docker/volume/volume.go generated vendored
View File

@ -1,374 +0,0 @@
package volume
import (
"fmt"
"os"
"path/filepath"
"strings"
"syscall"
"time"
mounttypes "github.com/docker/docker/api/types/mount"
"github.com/docker/docker/pkg/idtools"
"github.com/docker/docker/pkg/stringid"
"github.com/opencontainers/selinux/go-selinux/label"
"github.com/pkg/errors"
)
// DefaultDriverName is the driver name used for the driver
// implemented in the local package.
const DefaultDriverName = "local"
// Scopes define if a volume has is cluster-wide (global) or local only.
// Scopes are returned by the volume driver when it is queried for capabilities and then set on a volume
const (
LocalScope = "local"
GlobalScope = "global"
)
// Driver is for creating and removing volumes.
type Driver interface {
// Name returns the name of the volume driver.
Name() string
// Create makes a new volume with the given name.
Create(name string, opts map[string]string) (Volume, error)
// Remove deletes the volume.
Remove(vol Volume) (err error)
// List lists all the volumes the driver has
List() ([]Volume, error)
// Get retrieves the volume with the requested name
Get(name string) (Volume, error)
// Scope returns the scope of the driver (e.g. `global` or `local`).
// Scope determines how the driver is handled at a cluster level
Scope() string
}
// Capability defines a set of capabilities that a driver is able to handle.
type Capability struct {
// Scope is the scope of the driver, `global` or `local`
// A `global` scope indicates that the driver manages volumes across the cluster
// A `local` scope indicates that the driver only manages volumes resources local to the host
// Scope is declared by the driver
Scope string
}
// Volume is a place to store data. It is backed by a specific driver, and can be mounted.
type Volume interface {
// Name returns the name of the volume
Name() string
// DriverName returns the name of the driver which owns this volume.
DriverName() string
// Path returns the absolute path to the volume.
Path() string
// Mount mounts the volume and returns the absolute path to
// where it can be consumed.
Mount(id string) (string, error)
// Unmount unmounts the volume when it is no longer in use.
Unmount(id string) error
// CreatedAt returns Volume Creation time
CreatedAt() (time.Time, error)
// Status returns low-level status information about a volume
Status() map[string]interface{}
}
// DetailedVolume wraps a Volume with user-defined labels, options, and cluster scope (e.g., `local` or `global`)
type DetailedVolume interface {
Labels() map[string]string
Options() map[string]string
Scope() string
Volume
}
// MountPoint is the intersection point between a volume and a container. It
// specifies which volume is to be used and where inside a container it should
// be mounted.
type MountPoint struct {
// Source is the source path of the mount.
// E.g. `mount --bind /foo /bar`, `/foo` is the `Source`.
Source string
// Destination is the path relative to the container root (`/`) to the mount point
// It is where the `Source` is mounted to
Destination string
// RW is set to true when the mountpoint should be mounted as read-write
RW bool
// Name is the name reference to the underlying data defined by `Source`
// e.g., the volume name
Name string
// Driver is the volume driver used to create the volume (if it is a volume)
Driver string
// Type of mount to use, see `Type<foo>` definitions in github.com/docker/docker/api/types/mount
Type mounttypes.Type `json:",omitempty"`
// Volume is the volume providing data to this mountpoint.
// This is nil unless `Type` is set to `TypeVolume`
Volume Volume `json:"-"`
// Mode is the comma separated list of options supplied by the user when creating
// the bind/volume mount.
// Note Mode is not used on Windows
Mode string `json:"Relabel,omitempty"` // Originally field was `Relabel`"
// Propagation describes how the mounts are propagated from the host into the
// mount point, and vice-versa.
// See https://www.kernel.org/doc/Documentation/filesystems/sharedsubtree.txt
// Note Propagation is not used on Windows
Propagation mounttypes.Propagation `json:",omitempty"` // Mount propagation string
// Specifies if data should be copied from the container before the first mount
// Use a pointer here so we can tell if the user set this value explicitly
// This allows us to error out when the user explicitly enabled copy but we can't copy due to the volume being populated
CopyData bool `json:"-"`
// ID is the opaque ID used to pass to the volume driver.
// This should be set by calls to `Mount` and unset by calls to `Unmount`
ID string `json:",omitempty"`
// Sepc is a copy of the API request that created this mount.
Spec mounttypes.Mount
// Track usage of this mountpoint
// Specifically needed for containers which are running and calls to `docker cp`
// because both these actions require mounting the volumes.
active int
}
// Cleanup frees resources used by the mountpoint
func (m *MountPoint) Cleanup() error {
if m.Volume == nil || m.ID == "" {
return nil
}
if err := m.Volume.Unmount(m.ID); err != nil {
return errors.Wrapf(err, "error unmounting volume %s", m.Volume.Name())
}
m.active--
if m.active == 0 {
m.ID = ""
}
return nil
}
// Setup sets up a mount point by either mounting the volume if it is
// configured, or creating the source directory if supplied.
// The, optional, checkFun parameter allows doing additional checking
// before creating the source directory on the host.
func (m *MountPoint) Setup(mountLabel string, rootIDs idtools.IDPair, checkFun func(m *MountPoint) error) (path string, err error) {
defer func() {
if err != nil || !label.RelabelNeeded(m.Mode) {
return
}
err = label.Relabel(m.Source, mountLabel, label.IsShared(m.Mode))
if err == syscall.ENOTSUP {
err = nil
}
if err != nil {
path = ""
err = errors.Wrapf(err, "error setting label on mount source '%s'", m.Source)
}
}()
if m.Volume != nil {
id := m.ID
if id == "" {
id = stringid.GenerateNonCryptoID()
}
path, err := m.Volume.Mount(id)
if err != nil {
return "", errors.Wrapf(err, "error while mounting volume '%s'", m.Source)
}
m.ID = id
m.active++
return path, nil
}
if len(m.Source) == 0 {
return "", fmt.Errorf("Unable to setup mount point, neither source nor volume defined")
}
// system.MkdirAll() produces an error if m.Source exists and is a file (not a directory),
if m.Type == mounttypes.TypeBind {
// Before creating the source directory on the host, invoke checkFun if it's not nil. One of
// the use case is to forbid creating the daemon socket as a directory if the daemon is in
// the process of shutting down.
if checkFun != nil {
if err := checkFun(m); err != nil {
return "", err
}
}
// idtools.MkdirAllNewAs() produces an error if m.Source exists and is a file (not a directory)
// also, makes sure that if the directory is created, the correct remapped rootUID/rootGID will own it
if err := idtools.MkdirAllAndChownNew(m.Source, 0755, rootIDs); err != nil {
if perr, ok := err.(*os.PathError); ok {
if perr.Err != syscall.ENOTDIR {
return "", errors.Wrapf(err, "error while creating mount source path '%s'", m.Source)
}
}
}
}
return m.Source, nil
}
// Path returns the path of a volume in a mount point.
func (m *MountPoint) Path() string {
if m.Volume != nil {
return m.Volume.Path()
}
return m.Source
}
// ParseVolumesFrom ensures that the supplied volumes-from is valid.
func ParseVolumesFrom(spec string) (string, string, error) {
if len(spec) == 0 {
return "", "", fmt.Errorf("volumes-from specification cannot be an empty string")
}
specParts := strings.SplitN(spec, ":", 2)
id := specParts[0]
mode := "rw"
if len(specParts) == 2 {
mode = specParts[1]
if !ValidMountMode(mode) {
return "", "", errInvalidMode(mode)
}
// For now don't allow propagation properties while importing
// volumes from data container. These volumes will inherit
// the same propagation property as of the original volume
// in data container. This probably can be relaxed in future.
if HasPropagation(mode) {
return "", "", errInvalidMode(mode)
}
// Do not allow copy modes on volumes-from
if _, isSet := getCopyMode(mode); isSet {
return "", "", errInvalidMode(mode)
}
}
return id, mode, nil
}
// ParseMountRaw parses a raw volume spec (e.g. `-v /foo:/bar:shared`) into a
// structured spec. Once the raw spec is parsed it relies on `ParseMountSpec` to
// validate the spec and create a MountPoint
func ParseMountRaw(raw, volumeDriver string) (*MountPoint, error) {
arr, err := splitRawSpec(convertSlash(raw))
if err != nil {
return nil, err
}
var spec mounttypes.Mount
var mode string
switch len(arr) {
case 1:
// Just a destination path in the container
spec.Target = arr[0]
case 2:
if ValidMountMode(arr[1]) {
// Destination + Mode is not a valid volume - volumes
// cannot include a mode. e.g. /foo:rw
return nil, errInvalidSpec(raw)
}
// Host Source Path or Name + Destination
spec.Source = arr[0]
spec.Target = arr[1]
case 3:
// HostSourcePath+DestinationPath+Mode
spec.Source = arr[0]
spec.Target = arr[1]
mode = arr[2]
default:
return nil, errInvalidSpec(raw)
}
if !ValidMountMode(mode) {
return nil, errInvalidMode(mode)
}
if filepath.IsAbs(spec.Source) {
spec.Type = mounttypes.TypeBind
} else {
spec.Type = mounttypes.TypeVolume
}
spec.ReadOnly = !ReadWrite(mode)
// cannot assume that if a volume driver is passed in that we should set it
if volumeDriver != "" && spec.Type == mounttypes.TypeVolume {
spec.VolumeOptions = &mounttypes.VolumeOptions{
DriverConfig: &mounttypes.Driver{Name: volumeDriver},
}
}
if copyData, isSet := getCopyMode(mode); isSet {
if spec.VolumeOptions == nil {
spec.VolumeOptions = &mounttypes.VolumeOptions{}
}
spec.VolumeOptions.NoCopy = !copyData
}
if HasPropagation(mode) {
spec.BindOptions = &mounttypes.BindOptions{
Propagation: GetPropagation(mode),
}
}
mp, err := ParseMountSpec(spec, platformRawValidationOpts...)
if mp != nil {
mp.Mode = mode
}
if err != nil {
err = fmt.Errorf("%v: %v", errInvalidSpec(raw), err)
}
return mp, err
}
// ParseMountSpec reads a mount config, validates it, and configures a mountpoint from it.
func ParseMountSpec(cfg mounttypes.Mount, options ...func(*validateOpts)) (*MountPoint, error) {
if err := validateMountConfig(&cfg, options...); err != nil {
return nil, err
}
mp := &MountPoint{
RW: !cfg.ReadOnly,
Destination: clean(convertSlash(cfg.Target)),
Type: cfg.Type,
Spec: cfg,
}
switch cfg.Type {
case mounttypes.TypeVolume:
if cfg.Source == "" {
mp.Name = stringid.GenerateNonCryptoID()
} else {
mp.Name = cfg.Source
}
mp.CopyData = DefaultCopyMode
if cfg.VolumeOptions != nil {
if cfg.VolumeOptions.DriverConfig != nil {
mp.Driver = cfg.VolumeOptions.DriverConfig.Name
}
if cfg.VolumeOptions.NoCopy {
mp.CopyData = false
}
}
case mounttypes.TypeBind:
mp.Source = clean(convertSlash(cfg.Source))
if cfg.BindOptions != nil && len(cfg.BindOptions.Propagation) > 0 {
mp.Propagation = cfg.BindOptions.Propagation
} else {
// If user did not specify a propagation mode, get
// default propagation mode.
mp.Propagation = DefaultPropagationMode
}
case mounttypes.TypeTmpfs:
// NOP
}
return mp, nil
}
func errInvalidMode(mode string) error {
return fmt.Errorf("invalid mode: %v", mode)
}
func errInvalidSpec(spec string) error {
return fmt.Errorf("invalid volume specification: '%s'", spec)
}

23
vendor/github.com/docker/docker/volume/volume_copy.go generated vendored
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@ -1,23 +0,0 @@
package volume
import "strings"
// {<copy mode>=isEnabled}
var copyModes = map[string]bool{
"nocopy": false,
}
func copyModeExists(mode string) bool {
_, exists := copyModes[mode]
return exists
}
// GetCopyMode gets the copy mode from the mode string for mounts
func getCopyMode(mode string) (bool, bool) {
for _, o := range strings.Split(mode, ",") {
if isEnabled, exists := copyModes[o]; exists {
return isEnabled, true
}
}
return DefaultCopyMode, false
}

8
vendor/github.com/docker/docker/volume/volume_copy_unix.go generated vendored
View File

@ -1,8 +0,0 @@
// +build !windows
package volume
const (
// DefaultCopyMode is the copy mode used by default for normal/named volumes
DefaultCopyMode = true
)

6
vendor/github.com/docker/docker/volume/volume_copy_windows.go generated vendored
View File

@ -1,6 +0,0 @@
package volume
const (
// DefaultCopyMode is the copy mode used by default for normal/named volumes
DefaultCopyMode = false
)

56
vendor/github.com/docker/docker/volume/volume_linux.go generated vendored
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@ -1,56 +0,0 @@
// +build linux
package volume
import (
"fmt"
"strings"
mounttypes "github.com/docker/docker/api/types/mount"
)
// ConvertTmpfsOptions converts *mounttypes.TmpfsOptions to the raw option string
// for mount(2).
func ConvertTmpfsOptions(opt *mounttypes.TmpfsOptions, readOnly bool) (string, error) {
var rawOpts []string
if readOnly {
rawOpts = append(rawOpts, "ro")
}
if opt != nil && opt.Mode != 0 {
rawOpts = append(rawOpts, fmt.Sprintf("mode=%o", opt.Mode))
}
if opt != nil && opt.SizeBytes != 0 {
// calculate suffix here, making this linux specific, but that is
// okay, since API is that way anyways.
// we do this by finding the suffix that divides evenly into the
// value, returning the value itself, with no suffix, if it fails.
//
// For the most part, we don't enforce any semantic to this values.
// The operating system will usually align this and enforce minimum
// and maximums.
var (
size = opt.SizeBytes
suffix string
)
for _, r := range []struct {
suffix string
divisor int64
}{
{"g", 1 << 30},
{"m", 1 << 20},
{"k", 1 << 10},
} {
if size%r.divisor == 0 {
size = size / r.divisor
suffix = r.suffix
break
}
}
rawOpts = append(rawOpts, fmt.Sprintf("size=%d%s", size, suffix))
}
return strings.Join(rawOpts, ","), nil
}

47
vendor/github.com/docker/docker/volume/volume_propagation_linux.go generated vendored
View File

@ -1,47 +0,0 @@
// +build linux
package volume
import (
"strings"
mounttypes "github.com/docker/docker/api/types/mount"
)
// DefaultPropagationMode defines what propagation mode should be used by
// default if user has not specified one explicitly.
// propagation modes
const DefaultPropagationMode = mounttypes.PropagationRPrivate
var propagationModes = map[mounttypes.Propagation]bool{
mounttypes.PropagationPrivate: true,
mounttypes.PropagationRPrivate: true,
mounttypes.PropagationSlave: true,
mounttypes.PropagationRSlave: true,
mounttypes.PropagationShared: true,
mounttypes.PropagationRShared: true,
}
// GetPropagation extracts and returns the mount propagation mode. If there
// are no specifications, then by default it is "private".
func GetPropagation(mode string) mounttypes.Propagation {
for _, o := range strings.Split(mode, ",") {
prop := mounttypes.Propagation(o)
if propagationModes[prop] {
return prop
}
}
return DefaultPropagationMode
}
// HasPropagation checks if there is a valid propagation mode present in
// passed string. Returns true if a valid propagation mode specifier is
// present, false otherwise.
func HasPropagation(mode string) bool {
for _, o := range strings.Split(mode, ",") {
if propagationModes[mounttypes.Propagation(o)] {
return true
}
}
return false
}

24
vendor/github.com/docker/docker/volume/volume_propagation_unsupported.go generated vendored
View File

@ -1,24 +0,0 @@
// +build !linux
package volume
import mounttypes "github.com/docker/docker/api/types/mount"
// DefaultPropagationMode is used only in linux. In other cases it returns
// empty string.
const DefaultPropagationMode mounttypes.Propagation = ""
// propagation modes not supported on this platform.
var propagationModes = map[mounttypes.Propagation]bool{}
// GetPropagation is not supported. Return empty string.
func GetPropagation(mode string) mounttypes.Propagation {
return DefaultPropagationMode
}
// HasPropagation checks if there is a valid propagation mode present in
// passed string. Returns true if a valid propagation mode specifier is
// present, false otherwise.
func HasPropagation(mode string) bool {
return false
}

148
vendor/github.com/docker/docker/volume/volume_unix.go generated vendored
View File

@ -1,148 +0,0 @@
// +build linux freebsd darwin solaris
package volume
import (
"fmt"
"os"
"path/filepath"
"strings"
mounttypes "github.com/docker/docker/api/types/mount"
)
var platformRawValidationOpts = []func(o *validateOpts){
// need to make sure to not error out if the bind source does not exist on unix
// this is supported for historical reasons, the path will be automatically
// created later.
func(o *validateOpts) { o.skipBindSourceCheck = true },
}
// read-write modes
var rwModes = map[string]bool{
"rw": true,
"ro": true,
}
// label modes
var labelModes = map[string]bool{
"Z": true,
"z": true,
}
// consistency modes
var consistencyModes = map[mounttypes.Consistency]bool{
mounttypes.ConsistencyFull: true,
mounttypes.ConsistencyCached: true,
mounttypes.ConsistencyDelegated: true,
}
// BackwardsCompatible decides whether this mount point can be
// used in old versions of Docker or not.
// Only bind mounts and local volumes can be used in old versions of Docker.
func (m *MountPoint) BackwardsCompatible() bool {
return len(m.Source) > 0 || m.Driver == DefaultDriverName
}
// HasResource checks whether the given absolute path for a container is in
// this mount point. If the relative path starts with `../` then the resource
// is outside of this mount point, but we can't simply check for this prefix
// because it misses `..` which is also outside of the mount, so check both.
func (m *MountPoint) HasResource(absolutePath string) bool {
relPath, err := filepath.Rel(m.Destination, absolutePath)
return err == nil && relPath != ".." && !strings.HasPrefix(relPath, fmt.Sprintf("..%c", filepath.Separator))
}
// IsVolumeNameValid checks a volume name in a platform specific manner.
func IsVolumeNameValid(name string) (bool, error) {
return true, nil
}
// ValidMountMode will make sure the mount mode is valid.
// returns if it's a valid mount mode or not.
func ValidMountMode(mode string) bool {
if mode == "" {
return true
}
rwModeCount := 0
labelModeCount := 0
propagationModeCount := 0
copyModeCount := 0
consistencyModeCount := 0
for _, o := range strings.Split(mode, ",") {
switch {
case rwModes[o]:
rwModeCount++
case labelModes[o]:
labelModeCount++
case propagationModes[mounttypes.Propagation(o)]:
propagationModeCount++
case copyModeExists(o):
copyModeCount++
case consistencyModes[mounttypes.Consistency(o)]:
consistencyModeCount++
default:
return false
}
}
// Only one string for each mode is allowed.
if rwModeCount > 1 || labelModeCount > 1 || propagationModeCount > 1 || copyModeCount > 1 || consistencyModeCount > 1 {
return false
}
return true
}
// ReadWrite tells you if a mode string is a valid read-write mode or not.
// If there are no specifications w.r.t read write mode, then by default
// it returns true.
func ReadWrite(mode string) bool {
if !ValidMountMode(mode) {
return false
}
for _, o := range strings.Split(mode, ",") {
if o == "ro" {
return false
}
}
return true
}
func validateNotRoot(p string) error {
p = filepath.Clean(convertSlash(p))
if p == "/" {
return fmt.Errorf("invalid specification: destination can't be '/'")
}
return nil
}
func validateCopyMode(mode bool) error {
return nil
}
func convertSlash(p string) string {
return filepath.ToSlash(p)
}
func splitRawSpec(raw string) ([]string, error) {
if strings.Count(raw, ":") > 2 {
return nil, errInvalidSpec(raw)
}
arr := strings.SplitN(raw, ":", 3)
if arr[0] == "" {
return nil, errInvalidSpec(raw)
}
return arr, nil
}
func clean(p string) string {
return filepath.Clean(p)
}
func validateStat(fi os.FileInfo) error {
return nil
}

16
vendor/github.com/docker/docker/volume/volume_unsupported.go generated vendored
View File

@ -1,16 +0,0 @@
// +build !linux
package volume
import (
"fmt"
"runtime"
mounttypes "github.com/docker/docker/api/types/mount"
)
// ConvertTmpfsOptions converts *mounttypes.TmpfsOptions to the raw option string
// for mount(2).
func ConvertTmpfsOptions(opt *mounttypes.TmpfsOptions, readOnly bool) (string, error) {
return "", fmt.Errorf("%s does not support tmpfs", runtime.GOOS)
}

201
vendor/github.com/docker/docker/volume/volume_windows.go generated vendored
View File

@ -1,201 +0,0 @@
package volume
import (
"fmt"
"os"
"path/filepath"
"regexp"
"strings"
)
// read-write modes
var rwModes = map[string]bool{
"rw": true,
}
// read-only modes
var roModes = map[string]bool{
"ro": true,
}
var platformRawValidationOpts = []func(*validateOpts){
// filepath.IsAbs is weird on Windows:
// `c:` is not considered an absolute path
// `c:\` is considered an absolute path
// In any case, the regex matching below ensures absolute paths
// TODO: consider this a bug with filepath.IsAbs (?)
func(o *validateOpts) { o.skipAbsolutePathCheck = true },
}
const (
// Spec should be in the format [source:]destination[:mode]
//
// Examples: c:\foo bar:d:rw
// c:\foo:d:\bar
// myname:d:
// d:\
//
// Explanation of this regex! Thanks @thaJeztah on IRC and gist for help. See
// https://gist.github.com/thaJeztah/6185659e4978789fb2b2. A good place to
// test is https://regex-golang.appspot.com/assets/html/index.html
//
// Useful link for referencing named capturing groups:
// http://stackoverflow.com/questions/20750843/using-named-matches-from-go-regex
//
// There are three match groups: source, destination and mode.
//
// RXHostDir is the first option of a source
RXHostDir = `[a-z]:\\(?:[^\\/:*?"<>|\r\n]+\\?)*`
// RXName is the second option of a source
RXName = `[^\\/:*?"<>|\r\n]+`
// RXReservedNames are reserved names not possible on Windows
RXReservedNames = `(con)|(prn)|(nul)|(aux)|(com[1-9])|(lpt[1-9])`
// RXSource is the combined possibilities for a source
RXSource = `((?P<source>((` + RXHostDir + `)|(` + RXName + `))):)?`
// Source. Can be either a host directory, a name, or omitted:
// HostDir:
// - Essentially using the folder solution from
// https://www.safaribooksonline.com/library/view/regular-expressions-cookbook/9781449327453/ch08s18.html
// but adding case insensitivity.
// - Must be an absolute path such as c:\path
// - Can include spaces such as `c:\program files`
// - And then followed by a colon which is not in the capture group
// - And can be optional
// Name:
// - Must not contain invalid NTFS filename characters (https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx)
// - And then followed by a colon which is not in the capture group
// - And can be optional
// RXDestination is the regex expression for the mount destination
RXDestination = `(?P<destination>([a-z]):((?:\\[^\\/:*?"<>\r\n]+)*\\?))`
// Destination (aka container path):
// - Variation on hostdir but can be a drive followed by colon as well
// - If a path, must be absolute. Can include spaces
// - Drive cannot be c: (explicitly checked in code, not RegEx)
// RXMode is the regex expression for the mode of the mount
// Mode (optional):
// - Hopefully self explanatory in comparison to above regex's.
// - Colon is not in the capture group
RXMode = `(:(?P<mode>(?i)ro|rw))?`
)
// BackwardsCompatible decides whether this mount point can be
// used in old versions of Docker or not.
// Windows volumes are never backwards compatible.
func (m *MountPoint) BackwardsCompatible() bool {
return false
}
func splitRawSpec(raw string) ([]string, error) {
specExp := regexp.MustCompile(`^` + RXSource + RXDestination + RXMode + `$`)
match := specExp.FindStringSubmatch(strings.ToLower(raw))
// Must have something back
if len(match) == 0 {
return nil, errInvalidSpec(raw)
}
var split []string
matchgroups := make(map[string]string)
// Pull out the sub expressions from the named capture groups
for i, name := range specExp.SubexpNames() {
matchgroups[name] = strings.ToLower(match[i])
}
if source, exists := matchgroups["source"]; exists {
if source != "" {
split = append(split, source)
}
}
if destination, exists := matchgroups["destination"]; exists {
if destination != "" {
split = append(split, destination)
}
}
if mode, exists := matchgroups["mode"]; exists {
if mode != "" {
split = append(split, mode)
}
}
// Fix #26329. If the destination appears to be a file, and the source is null,
// it may be because we've fallen through the possible naming regex and hit a
// situation where the user intention was to map a file into a container through
// a local volume, but this is not supported by the platform.
if matchgroups["source"] == "" && matchgroups["destination"] != "" {
validName, err := IsVolumeNameValid(matchgroups["destination"])
if err != nil {
return nil, err
}
if !validName {
if fi, err := os.Stat(matchgroups["destination"]); err == nil {
if !fi.IsDir() {
return nil, fmt.Errorf("file '%s' cannot be mapped. Only directories can be mapped on this platform", matchgroups["destination"])
}
}
}
}
return split, nil
}
// IsVolumeNameValid checks a volume name in a platform specific manner.
func IsVolumeNameValid(name string) (bool, error) {
nameExp := regexp.MustCompile(`^` + RXName + `$`)
if !nameExp.MatchString(name) {
return false, nil
}
nameExp = regexp.MustCompile(`^` + RXReservedNames + `$`)
if nameExp.MatchString(name) {
return false, fmt.Errorf("volume name %q cannot be a reserved word for Windows filenames", name)
}
return true, nil
}
// ValidMountMode will make sure the mount mode is valid.
// returns if it's a valid mount mode or not.
func ValidMountMode(mode string) bool {
if mode == "" {
return true
}
return roModes[strings.ToLower(mode)] || rwModes[strings.ToLower(mode)]
}
// ReadWrite tells you if a mode string is a valid read-write mode or not.
func ReadWrite(mode string) bool {
return rwModes[strings.ToLower(mode)] || mode == ""
}
func validateNotRoot(p string) error {
p = strings.ToLower(convertSlash(p))
if p == "c:" || p == `c:\` {
return fmt.Errorf("destination path cannot be `c:` or `c:\\`: %v", p)
}
return nil
}
func validateCopyMode(mode bool) error {
if mode {
return fmt.Errorf("Windows does not support copying image path content")
}
return nil
}
func convertSlash(p string) string {
return filepath.FromSlash(p)
}
func clean(p string) string {
if match, _ := regexp.MatchString("^[a-z]:$", p); match {
return p
}
return filepath.Clean(p)
}
func validateStat(fi os.FileInfo) error {
if !fi.IsDir() {
return fmt.Errorf("source path must be a directory")
}
return nil
}

64
vendor/github.com/opencontainers/runc/libcontainer/cgroups/cgroups.go generated vendored
View File

@ -1,64 +0,0 @@
// +build linux
package cgroups
import (
"fmt"
"github.com/opencontainers/runc/libcontainer/configs"
)
type Manager interface {
// Applies cgroup configuration to the process with the specified pid
Apply(pid int) error
// Returns the PIDs inside the cgroup set
GetPids() ([]int, error)
// Returns the PIDs inside the cgroup set & all sub-cgroups
GetAllPids() ([]int, error)
// Returns statistics for the cgroup set
GetStats() (*Stats, error)
// Toggles the freezer cgroup according with specified state
Freeze(state configs.FreezerState) error
// Destroys the cgroup set
Destroy() error
// NewCgroupManager() and LoadCgroupManager() require following attributes:
// Paths map[string]string
// Cgroups *cgroups.Cgroup
// Paths maps cgroup subsystem to path at which it is mounted.
// Cgroups specifies specific cgroup settings for the various subsystems
// Returns cgroup paths to save in a state file and to be able to
// restore the object later.
GetPaths() map[string]string
// Sets the cgroup as configured.
Set(container *configs.Config) error
}
type NotFoundError struct {
Subsystem string
}
func (e *NotFoundError) Error() string {
return fmt.Sprintf("mountpoint for %s not found", e.Subsystem)
}
func NewNotFoundError(sub string) error {
return &NotFoundError{
Subsystem: sub,
}
}
func IsNotFound(err error) bool {
if err == nil {
return false
}
_, ok := err.(*NotFoundError)
return ok
}

3
vendor/github.com/opencontainers/runc/libcontainer/cgroups/cgroups_unsupported.go generated vendored
View File

@ -1,3 +0,0 @@
// +build !linux
package cgroups

106
vendor/github.com/opencontainers/runc/libcontainer/cgroups/stats.go generated vendored
View File

@ -1,106 +0,0 @@
// +build linux
package cgroups
type ThrottlingData struct {
// Number of periods with throttling active
Periods uint64 `json:"periods,omitempty"`
// Number of periods when the container hit its throttling limit.
ThrottledPeriods uint64 `json:"throttled_periods,omitempty"`
// Aggregate time the container was throttled for in nanoseconds.
ThrottledTime uint64 `json:"throttled_time,omitempty"`
}
// CpuUsage denotes the usage of a CPU.
// All CPU stats are aggregate since container inception.
type CpuUsage struct {
// Total CPU time consumed.
// Units: nanoseconds.
TotalUsage uint64 `json:"total_usage,omitempty"`
// Total CPU time consumed per core.
// Units: nanoseconds.
PercpuUsage []uint64 `json:"percpu_usage,omitempty"`
// Time spent by tasks of the cgroup in kernel mode.
// Units: nanoseconds.
UsageInKernelmode uint64 `json:"usage_in_kernelmode"`
// Time spent by tasks of the cgroup in user mode.
// Units: nanoseconds.
UsageInUsermode uint64 `json:"usage_in_usermode"`
}
type CpuStats struct {
CpuUsage CpuUsage `json:"cpu_usage,omitempty"`
ThrottlingData ThrottlingData `json:"throttling_data,omitempty"`
}
type MemoryData struct {
Usage uint64 `json:"usage,omitempty"`
MaxUsage uint64 `json:"max_usage,omitempty"`
Failcnt uint64 `json:"failcnt"`
Limit uint64 `json:"limit"`
}
type MemoryStats struct {
// memory used for cache
Cache uint64 `json:"cache,omitempty"`
// usage of memory
Usage MemoryData `json:"usage,omitempty"`
// usage of memory + swap
SwapUsage MemoryData `json:"swap_usage,omitempty"`
// usage of kernel memory
KernelUsage MemoryData `json:"kernel_usage,omitempty"`
// usage of kernel TCP memory
KernelTCPUsage MemoryData `json:"kernel_tcp_usage,omitempty"`
Stats map[string]uint64 `json:"stats,omitempty"`
}
type PidsStats struct {
// number of pids in the cgroup
Current uint64 `json:"current,omitempty"`
// active pids hard limit
Limit uint64 `json:"limit,omitempty"`
}
type BlkioStatEntry struct {
Major uint64 `json:"major,omitempty"`
Minor uint64 `json:"minor,omitempty"`
Op string `json:"op,omitempty"`
Value uint64 `json:"value,omitempty"`
}
type BlkioStats struct {
// number of bytes tranferred to and from the block device
IoServiceBytesRecursive []BlkioStatEntry `json:"io_service_bytes_recursive,omitempty"`
IoServicedRecursive []BlkioStatEntry `json:"io_serviced_recursive,omitempty"`
IoQueuedRecursive []BlkioStatEntry `json:"io_queue_recursive,omitempty"`
IoServiceTimeRecursive []BlkioStatEntry `json:"io_service_time_recursive,omitempty"`
IoWaitTimeRecursive []BlkioStatEntry `json:"io_wait_time_recursive,omitempty"`
IoMergedRecursive []BlkioStatEntry `json:"io_merged_recursive,omitempty"`
IoTimeRecursive []BlkioStatEntry `json:"io_time_recursive,omitempty"`
SectorsRecursive []BlkioStatEntry `json:"sectors_recursive,omitempty"`
}
type HugetlbStats struct {
// current res_counter usage for hugetlb
Usage uint64 `json:"usage,omitempty"`
// maximum usage ever recorded.
MaxUsage uint64 `json:"max_usage,omitempty"`
// number of times hugetlb usage allocation failure.
Failcnt uint64 `json:"failcnt"`
}
type Stats struct {
CpuStats CpuStats `json:"cpu_stats,omitempty"`
MemoryStats MemoryStats `json:"memory_stats,omitempty"`
PidsStats PidsStats `json:"pids_stats,omitempty"`
BlkioStats BlkioStats `json:"blkio_stats,omitempty"`
// the map is in the format "size of hugepage: stats of the hugepage"
HugetlbStats map[string]HugetlbStats `json:"hugetlb_stats,omitempty"`
}
func NewStats() *Stats {
memoryStats := MemoryStats{Stats: make(map[string]uint64)}
hugetlbStats := make(map[string]HugetlbStats)
return &Stats{MemoryStats: memoryStats, HugetlbStats: hugetlbStats}
}

436
vendor/github.com/opencontainers/runc/libcontainer/cgroups/utils.go generated vendored
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@ -1,436 +0,0 @@
// +build linux
package cgroups
import (
"bufio"
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/docker/go-units"
)
const (
cgroupNamePrefix = "name="
CgroupProcesses = "cgroup.procs"
)
// https://www.kernel.org/doc/Documentation/cgroup-v1/cgroups.txt
func FindCgroupMountpoint(subsystem string) (string, error) {
// We are not using mount.GetMounts() because it's super-inefficient,
// parsing it directly sped up x10 times because of not using Sscanf.
// It was one of two major performance drawbacks in container start.
if !isSubsystemAvailable(subsystem) {
return "", NewNotFoundError(subsystem)
}
f, err := os.Open("/proc/self/mountinfo")
if err != nil {
return "", err
}
defer f.Close()
scanner := bufio.NewScanner(f)
for scanner.Scan() {
txt := scanner.Text()
fields := strings.Split(txt, " ")
for _, opt := range strings.Split(fields[len(fields)-1], ",") {
if opt == subsystem {
return fields[4], nil
}
}
}
if err := scanner.Err(); err != nil {
return "", err
}
return "", NewNotFoundError(subsystem)
}
func FindCgroupMountpointAndRoot(subsystem string) (string, string, error) {
if !isSubsystemAvailable(subsystem) {
return "", "", NewNotFoundError(subsystem)
}
f, err := os.Open("/proc/self/mountinfo")
if err != nil {
return "", "", err
}
defer f.Close()
scanner := bufio.NewScanner(f)
for scanner.Scan() {
txt := scanner.Text()
fields := strings.Split(txt, " ")
for _, opt := range strings.Split(fields[len(fields)-1], ",") {
if opt == subsystem {
return fields[4], fields[3], nil
}
}
}
if err := scanner.Err(); err != nil {
return "", "", err
}
return "", "", NewNotFoundError(subsystem)
}
func isSubsystemAvailable(subsystem string) bool {
cgroups, err := ParseCgroupFile("/proc/self/cgroup")
if err != nil {
return false
}
_, avail := cgroups[subsystem]
return avail
}
func FindCgroupMountpointDir() (string, error) {
f, err := os.Open("/proc/self/mountinfo")
if err != nil {
return "", err
}
defer f.Close()
scanner := bufio.NewScanner(f)
for scanner.Scan() {
text := scanner.Text()
fields := strings.Split(text, " ")
// Safe as mountinfo encodes mountpoints with spaces as \040.
index := strings.Index(text, " - ")
postSeparatorFields := strings.Fields(text[index+3:])
numPostFields := len(postSeparatorFields)
// This is an error as we can't detect if the mount is for "cgroup"
if numPostFields == 0 {
return "", fmt.Errorf("Found no fields post '-' in %q", text)
}
if postSeparatorFields[0] == "cgroup" {
// Check that the mount is properly formated.
if numPostFields < 3 {
return "", fmt.Errorf("Error found less than 3 fields post '-' in %q", text)
}
return filepath.Dir(fields[4]), nil
}
}
if err := scanner.Err(); err != nil {
return "", err
}
return "", NewNotFoundError("cgroup")
}
type Mount struct {
Mountpoint string
Root string
Subsystems []string
}
func (m Mount) GetThisCgroupDir(cgroups map[string]string) (string, error) {
if len(m.Subsystems) == 0 {
return "", fmt.Errorf("no subsystem for mount")
}
return getControllerPath(m.Subsystems[0], cgroups)
}
func getCgroupMountsHelper(ss map[string]bool, mi io.Reader, all bool) ([]Mount, error) {
res := make([]Mount, 0, len(ss))
scanner := bufio.NewScanner(mi)
numFound := 0
for scanner.Scan() && numFound < len(ss) {
txt := scanner.Text()
sepIdx := strings.Index(txt, " - ")
if sepIdx == -1 {
return nil, fmt.Errorf("invalid mountinfo format")
}
if txt[sepIdx+3:sepIdx+10] == "cgroup2" || txt[sepIdx+3:sepIdx+9] != "cgroup" {
continue
}
fields := strings.Split(txt, " ")
m := Mount{
Mountpoint: fields[4],
Root: fields[3],
}
for _, opt := range strings.Split(fields[len(fields)-1], ",") {
if !ss[opt] {
continue
}
if strings.HasPrefix(opt, cgroupNamePrefix) {
m.Subsystems = append(m.Subsystems, opt[len(cgroupNamePrefix):])
} else {
m.Subsystems = append(m.Subsystems, opt)
}
if !all {
numFound++
}
}
res = append(res, m)
}
if err := scanner.Err(); err != nil {
return nil, err
}
return res, nil
}
// GetCgroupMounts returns the mounts for the cgroup subsystems.
// all indicates whether to return just the first instance or all the mounts.
func GetCgroupMounts(all bool) ([]Mount, error) {
f, err := os.Open("/proc/self/mountinfo")
if err != nil {
return nil, err
}
defer f.Close()
allSubsystems, err := ParseCgroupFile("/proc/self/cgroup")
if err != nil {
return nil, err
}
allMap := make(map[string]bool)
for s := range allSubsystems {
allMap[s] = true
}
return getCgroupMountsHelper(allMap, f, all)
}
// GetAllSubsystems returns all the cgroup subsystems supported by the kernel
func GetAllSubsystems() ([]string, error) {
f, err := os.Open("/proc/cgroups")
if err != nil {
return nil, err
}
defer f.Close()
subsystems := []string{}
s := bufio.NewScanner(f)
for s.Scan() {
if err := s.Err(); err != nil {
return nil, err
}
text := s.Text()
if text[0] != '#' {
parts := strings.Fields(text)
if len(parts) >= 4 && parts[3] != "0" {
subsystems = append(subsystems, parts[0])
}
}
}
return subsystems, nil
}
// GetThisCgroupDir returns the relative path to the cgroup docker is running in.
func GetThisCgroupDir(subsystem string) (string, error) {
cgroups, err := ParseCgroupFile("/proc/self/cgroup")
if err != nil {
return "", err
}
return getControllerPath(subsystem, cgroups)
}
func GetInitCgroupDir(subsystem string) (string, error) {
cgroups, err := ParseCgroupFile("/proc/1/cgroup")
if err != nil {
return "", err
}
return getControllerPath(subsystem, cgroups)
}
func readProcsFile(dir string) ([]int, error) {
f, err := os.Open(filepath.Join(dir, CgroupProcesses))
if err != nil {
return nil, err
}
defer f.Close()
var (
s = bufio.NewScanner(f)
out = []int{}
)
for s.Scan() {
if t := s.Text(); t != "" {
pid, err := strconv.Atoi(t)
if err != nil {
return nil, err
}
out = append(out, pid)
}
}
return out, nil
}
// ParseCgroupFile parses the given cgroup file, typically from
// /proc/<pid>/cgroup, into a map of subgroups to cgroup names.
func ParseCgroupFile(path string) (map[string]string, error) {
f, err := os.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
return parseCgroupFromReader(f)
}
// helper function for ParseCgroupFile to make testing easier
func parseCgroupFromReader(r io.Reader) (map[string]string, error) {
s := bufio.NewScanner(r)
cgroups := make(map[string]string)
for s.Scan() {
if err := s.Err(); err != nil {
return nil, err
}
text := s.Text()
// from cgroups(7):
// /proc/[pid]/cgroup
// ...
// For each cgroup hierarchy ... there is one entry
// containing three colon-separated fields of the form:
// hierarchy-ID:subsystem-list:cgroup-path
parts := strings.SplitN(text, ":", 3)
if len(parts) < 3 {
return nil, fmt.Errorf("invalid cgroup entry: must contain at least two colons: %v", text)
}
for _, subs := range strings.Split(parts[1], ",") {
cgroups[subs] = parts[2]
}
}
return cgroups, nil
}
func getControllerPath(subsystem string, cgroups map[string]string) (string, error) {
if p, ok := cgroups[subsystem]; ok {
return p, nil
}
if p, ok := cgroups[cgroupNamePrefix+subsystem]; ok {
return p, nil
}
return "", NewNotFoundError(subsystem)
}
func PathExists(path string) bool {
if _, err := os.Stat(path); err != nil {
return false
}
return true
}
func EnterPid(cgroupPaths map[string]string, pid int) error {
for _, path := range cgroupPaths {
if PathExists(path) {
if err := WriteCgroupProc(path, pid); err != nil {
return err
}
}
}
return nil
}
// RemovePaths iterates over the provided paths removing them.
// We trying to remove all paths five times with increasing delay between tries.
// If after all there are not removed cgroups - appropriate error will be
// returned.
func RemovePaths(paths map[string]string) (err error) {
delay := 10 * time.Millisecond
for i := 0; i < 5; i++ {
if i != 0 {
time.Sleep(delay)
delay *= 2
}
for s, p := range paths {
os.RemoveAll(p)
// TODO: here probably should be logging
_, err := os.Stat(p)
// We need this strange way of checking cgroups existence because
// RemoveAll almost always returns error, even on already removed
// cgroups
if os.IsNotExist(err) {
delete(paths, s)
}
}
if len(paths) == 0 {
return nil
}
}
return fmt.Errorf("Failed to remove paths: %v", paths)
}
func GetHugePageSize() ([]string, error) {
var pageSizes []string
sizeList := []string{"B", "kB", "MB", "GB", "TB", "PB"}
files, err := ioutil.ReadDir("/sys/kernel/mm/hugepages")
if err != nil {
return pageSizes, err
}
for _, st := range files {
nameArray := strings.Split(st.Name(), "-")
pageSize, err := units.RAMInBytes(nameArray[1])
if err != nil {
return []string{}, err
}
sizeString := units.CustomSize("%g%s", float64(pageSize), 1024.0, sizeList)
pageSizes = append(pageSizes, sizeString)
}
return pageSizes, nil
}
// GetPids returns all pids, that were added to cgroup at path.
func GetPids(path string) ([]int, error) {
return readProcsFile(path)
}
// GetAllPids returns all pids, that were added to cgroup at path and to all its
// subcgroups.
func GetAllPids(path string) ([]int, error) {
var pids []int
// collect pids from all sub-cgroups
err := filepath.Walk(path, func(p string, info os.FileInfo, iErr error) error {
dir, file := filepath.Split(p)
if file != CgroupProcesses {
return nil
}
if iErr != nil {
return iErr
}
cPids, err := readProcsFile(dir)
if err != nil {
return err
}
pids = append(pids, cPids...)
return nil
})
return pids, err
}
// WriteCgroupProc writes the specified pid into the cgroup's cgroup.procs file
func WriteCgroupProc(dir string, pid int) error {
// Normally dir should not be empty, one case is that cgroup subsystem
// is not mounted, we will get empty dir, and we want it fail here.
if dir == "" {
return fmt.Errorf("no such directory for %s", CgroupProcesses)
}
// Dont attach any pid to the cgroup if -1 is specified as a pid
if pid != -1 {
if err := ioutil.WriteFile(filepath.Join(dir, CgroupProcesses), []byte(strconv.Itoa(pid)), 0700); err != nil {
return fmt.Errorf("failed to write %v to %v: %v", pid, CgroupProcesses, err)
}
}
return nil
}

61
vendor/github.com/opencontainers/runc/libcontainer/configs/blkio_device.go generated vendored
View File

@ -1,61 +0,0 @@
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)
}

124
vendor/github.com/opencontainers/runc/libcontainer/configs/cgroup_unix.go generated vendored
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@ -1,124 +0,0 @@
// +build linux freebsd
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 int64 `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 int64 `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 int64 `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 *int64 `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"`
}

6
vendor/github.com/opencontainers/runc/libcontainer/configs/cgroup_unsupported.go generated vendored
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@ -1,6 +0,0 @@
// +build !windows,!linux,!freebsd
package configs
type Cgroup struct {
}

6
vendor/github.com/opencontainers/runc/libcontainer/configs/cgroup_windows.go generated vendored
View File

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

332
vendor/github.com/opencontainers/runc/libcontainer/configs/config.go generated vendored
View File

@ -1,332 +0,0 @@
package configs
import (
"bytes"
"encoding/json"
"fmt"
"os/exec"
"time"
"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 capbilities not specified will be dropped from the processes capability mask
Capabilities []string `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"`
}
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
}
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 struct {
Version string `json:"ociVersion"`
ID string `json:"id"`
Pid int `json:"pid"`
Root string `json:"root"`
BundlePath string `json:"bundlePath"`
}
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())
}
}

51
vendor/github.com/opencontainers/runc/libcontainer/configs/config_unix.go generated vendored
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@ -1,51 +0,0 @@
// +build freebsd linux
package configs
import "fmt"
// HostUID gets the root uid for the process on host which could be non-zero
// when user namespaces are enabled.
func (c Config) HostUID() (int, error) {
if c.Namespaces.Contains(NEWUSER) {
if c.UidMappings == nil {
return -1, fmt.Errorf("User namespaces enabled, but no user mappings found.")
}
id, found := c.hostIDFromMapping(0, c.UidMappings)
if !found {
return -1, fmt.Errorf("User namespaces enabled, but no root user mapping found.")
}
return id, nil
}
// Return default root uid 0
return 0, nil
}
// HostGID gets the root gid for the process on host which could be non-zero
// when user namespaces are enabled.
func (c Config) HostGID() (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(0, c.GidMappings)
if !found {
return -1, fmt.Errorf("User namespaces enabled, but no root group mapping found.")
}
return id, nil
}
// Return default root gid 0
return 0, nil
}
// 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
}

57
vendor/github.com/opencontainers/runc/libcontainer/configs/device.go generated vendored
View File

@ -1,57 +0,0 @@
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)
}

111
vendor/github.com/opencontainers/runc/libcontainer/configs/device_defaults.go generated vendored
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@ -1,111 +0,0 @@
// +build linux freebsd
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...)
)

9
vendor/github.com/opencontainers/runc/libcontainer/configs/hugepage_limit.go generated vendored
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@ -1,9 +0,0 @@
package configs
type HugepageLimit struct {
// which type of hugepage to limit.
Pagesize string `json:"page_size"`
// usage limit for hugepage.
Limit uint64 `json:"limit"`
}

14
vendor/github.com/opencontainers/runc/libcontainer/configs/interface_priority_map.go generated vendored
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@ -1,14 +0,0 @@
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)
}

39
vendor/github.com/opencontainers/runc/libcontainer/configs/mount.go generated vendored
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@ -1,39 +0,0 @@
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"`
}

5
vendor/github.com/opencontainers/runc/libcontainer/configs/namespaces.go generated vendored
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@ -1,5 +0,0 @@
package configs
type NamespaceType string
type Namespaces []Namespace

31
vendor/github.com/opencontainers/runc/libcontainer/configs/namespaces_syscall.go generated vendored
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@ -1,31 +0,0 @@
// +build linux
package configs
import "syscall"
func (n *Namespace) Syscall() int {
return namespaceInfo[n.Type]
}
var namespaceInfo = map[NamespaceType]int{
NEWNET: syscall.CLONE_NEWNET,
NEWNS: syscall.CLONE_NEWNS,
NEWUSER: syscall.CLONE_NEWUSER,
NEWIPC: syscall.CLONE_NEWIPC,
NEWUTS: syscall.CLONE_NEWUTS,
NEWPID: syscall.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)
}

15
vendor/github.com/opencontainers/runc/libcontainer/configs/namespaces_syscall_unsupported.go generated vendored
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@ -1,15 +0,0 @@
// +build !linux,!windows
package configs
func (n *Namespace) Syscall() int {
panic("No namespace syscall support")
return 0
}
// 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")
return uintptr(0)
}

127
vendor/github.com/opencontainers/runc/libcontainer/configs/namespaces_unix.go generated vendored
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@ -1,127 +0,0 @@
// +build linux freebsd
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{
NEWNET,
NEWPID,
NEWNS,
NEWUTS,
NEWIPC,
NEWUSER,
}
}
// 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 {
if n.Path != "" {
return n.Path
}
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
}

8
vendor/github.com/opencontainers/runc/libcontainer/configs/namespaces_unsupported.go generated vendored
View File

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

72
vendor/github.com/opencontainers/runc/libcontainer/configs/network.go generated vendored
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@ -1,72 +0,0 @@
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"`
}

201
vendor/github.com/opencontainers/selinux/LICENSE generated vendored
View File

@ -1,201 +0,0 @@
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
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the copyright owner. For the purposes of this definition, "submitted"
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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,
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(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
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Contribution(s) alone or by combination of their Contribution(s)
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as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
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meet the following conditions:
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(b) You must cause any modified files to carry prominent notices
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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
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whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
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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.
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replaced with your own identifying information. (Don't include
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Licensed under the Apache License, Version 2.0 (the "License");
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7
vendor/github.com/opencontainers/selinux/README.md generated vendored
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@ -1,7 +0,0 @@
# 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.

84
vendor/github.com/opencontainers/selinux/go-selinux/label/label.go generated vendored
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@ -1,84 +0,0 @@
// +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
}

204
vendor/github.com/opencontainers/selinux/go-selinux/label/label_selinux.go generated vendored
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@ -1,204 +0,0 @@
// +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")
}

593
vendor/github.com/opencontainers/selinux/go-selinux/selinux.go generated vendored
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@ -1,593 +0,0 @@
// +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)
}
// Filecon 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
}
/*
SetEnforce 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"}
}

78
vendor/github.com/opencontainers/selinux/go-selinux/xattrs.go generated vendored
View File

@ -1,78 +0,0 @@
// +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
}