seccomp: move seccomp types from api into seccomp profile

These types were not used in the API, so could not come up with
a reason why they were in that package.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2020-09-18 18:14:16 +02:00
parent 7f7e4abb33
commit 0efee50b95
No known key found for this signature in database
GPG key ID: 76698F39D527CE8C
4 changed files with 119 additions and 125 deletions

View file

@ -3,46 +3,45 @@
package seccomp // import "github.com/docker/docker/profiles/seccomp"
import (
"github.com/docker/docker/api/types"
"golang.org/x/sys/unix"
)
func arches() []types.Architecture {
return []types.Architecture{
func arches() []Architecture {
return []Architecture{
{
Arch: types.ArchX86_64,
SubArches: []types.Arch{types.ArchX86, types.ArchX32},
Arch: ArchX86_64,
SubArches: []Arch{ArchX86, ArchX32},
},
{
Arch: types.ArchAARCH64,
SubArches: []types.Arch{types.ArchARM},
Arch: ArchAARCH64,
SubArches: []Arch{ArchARM},
},
{
Arch: types.ArchMIPS64,
SubArches: []types.Arch{types.ArchMIPS, types.ArchMIPS64N32},
Arch: ArchMIPS64,
SubArches: []Arch{ArchMIPS, ArchMIPS64N32},
},
{
Arch: types.ArchMIPS64N32,
SubArches: []types.Arch{types.ArchMIPS, types.ArchMIPS64},
Arch: ArchMIPS64N32,
SubArches: []Arch{ArchMIPS, ArchMIPS64},
},
{
Arch: types.ArchMIPSEL64,
SubArches: []types.Arch{types.ArchMIPSEL, types.ArchMIPSEL64N32},
Arch: ArchMIPSEL64,
SubArches: []Arch{ArchMIPSEL, ArchMIPSEL64N32},
},
{
Arch: types.ArchMIPSEL64N32,
SubArches: []types.Arch{types.ArchMIPSEL, types.ArchMIPSEL64},
Arch: ArchMIPSEL64N32,
SubArches: []Arch{ArchMIPSEL, ArchMIPSEL64},
},
{
Arch: types.ArchS390X,
SubArches: []types.Arch{types.ArchS390},
Arch: ArchS390X,
SubArches: []Arch{ArchS390},
},
}
}
// DefaultProfile defines the allowed syscalls for the default seccomp profile.
func DefaultProfile() *types.Seccomp {
syscalls := []*types.Syscall{
func DefaultProfile() *Seccomp {
syscalls := []*Syscall{
{
Names: []string{
"accept",
@ -382,68 +381,68 @@ func DefaultProfile() *types.Seccomp {
"write",
"writev",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Action: ActAllow,
Args: []*Arg{},
},
{
Names: []string{"ptrace"},
Action: types.ActAllow,
Includes: types.Filter{
Action: ActAllow,
Includes: Filter{
MinKernel: "4.8",
},
},
{
Names: []string{"personality"},
Action: types.ActAllow,
Args: []*types.Arg{
Action: ActAllow,
Args: []*Arg{
{
Index: 0,
Value: 0x0,
Op: types.OpEqualTo,
Op: OpEqualTo,
},
},
},
{
Names: []string{"personality"},
Action: types.ActAllow,
Args: []*types.Arg{
Action: ActAllow,
Args: []*Arg{
{
Index: 0,
Value: 0x0008,
Op: types.OpEqualTo,
Op: OpEqualTo,
},
},
},
{
Names: []string{"personality"},
Action: types.ActAllow,
Args: []*types.Arg{
Action: ActAllow,
Args: []*Arg{
{
Index: 0,
Value: 0x20000,
Op: types.OpEqualTo,
Op: OpEqualTo,
},
},
},
{
Names: []string{"personality"},
Action: types.ActAllow,
Args: []*types.Arg{
Action: ActAllow,
Args: []*Arg{
{
Index: 0,
Value: 0x20008,
Op: types.OpEqualTo,
Op: OpEqualTo,
},
},
},
{
Names: []string{"personality"},
Action: types.ActAllow,
Args: []*types.Arg{
Action: ActAllow,
Args: []*Arg{
{
Index: 0,
Value: 0xffffffff,
Op: types.OpEqualTo,
Op: OpEqualTo,
},
},
},
@ -451,9 +450,9 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"sync_file_range2",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Arches: []string{"ppc64le"},
},
},
@ -466,9 +465,9 @@ func DefaultProfile() *types.Seccomp {
"cacheflush",
"set_tls",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Arches: []string{"arm", "arm64"},
},
},
@ -476,9 +475,9 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"arch_prctl",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Arches: []string{"amd64", "x32"},
},
},
@ -486,9 +485,9 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"modify_ldt",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Arches: []string{"amd64", "x32", "x86"},
},
},
@ -498,9 +497,9 @@ func DefaultProfile() *types.Seccomp {
"s390_pci_mmio_write",
"s390_runtime_instr",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Arches: []string{"s390", "s390x"},
},
},
@ -508,9 +507,9 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"open_by_handle_at",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_DAC_READ_SEARCH"},
},
},
@ -532,9 +531,9 @@ func DefaultProfile() *types.Seccomp {
"umount2",
"unshare",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYS_ADMIN"},
},
},
@ -542,16 +541,16 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"clone",
},
Action: types.ActAllow,
Args: []*types.Arg{
Action: ActAllow,
Args: []*Arg{
{
Index: 0,
Value: unix.CLONE_NEWNS | unix.CLONE_NEWUTS | unix.CLONE_NEWIPC | unix.CLONE_NEWUSER | unix.CLONE_NEWPID | unix.CLONE_NEWNET | unix.CLONE_NEWCGROUP,
ValueTwo: 0,
Op: types.OpMaskedEqual,
Op: OpMaskedEqual,
},
},
Excludes: types.Filter{
Excludes: Filter{
Caps: []string{"CAP_SYS_ADMIN"},
Arches: []string{"s390", "s390x"},
},
@ -560,20 +559,20 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"clone",
},
Action: types.ActAllow,
Args: []*types.Arg{
Action: ActAllow,
Args: []*Arg{
{
Index: 1,
Value: unix.CLONE_NEWNS | unix.CLONE_NEWUTS | unix.CLONE_NEWIPC | unix.CLONE_NEWUSER | unix.CLONE_NEWPID | unix.CLONE_NEWNET | unix.CLONE_NEWCGROUP,
ValueTwo: 0,
Op: types.OpMaskedEqual,
Op: OpMaskedEqual,
},
},
Comment: "s390 parameter ordering for clone is different",
Includes: types.Filter{
Includes: Filter{
Arches: []string{"s390", "s390x"},
},
Excludes: types.Filter{
Excludes: Filter{
Caps: []string{"CAP_SYS_ADMIN"},
},
},
@ -581,9 +580,9 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"reboot",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYS_BOOT"},
},
},
@ -591,9 +590,9 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"chroot",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYS_CHROOT"},
},
},
@ -603,9 +602,9 @@ func DefaultProfile() *types.Seccomp {
"init_module",
"finit_module",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYS_MODULE"},
},
},
@ -613,9 +612,9 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"acct",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYS_PACCT"},
},
},
@ -626,9 +625,9 @@ func DefaultProfile() *types.Seccomp {
"process_vm_writev",
"ptrace",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYS_PTRACE"},
},
},
@ -637,9 +636,9 @@ func DefaultProfile() *types.Seccomp {
"iopl",
"ioperm",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYS_RAWIO"},
},
},
@ -649,9 +648,9 @@ func DefaultProfile() *types.Seccomp {
"stime",
"clock_settime",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYS_TIME"},
},
},
@ -659,9 +658,9 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"vhangup",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYS_TTY_CONFIG"},
},
},
@ -671,9 +670,9 @@ func DefaultProfile() *types.Seccomp {
"mbind",
"set_mempolicy",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYS_NICE"},
},
},
@ -681,16 +680,16 @@ func DefaultProfile() *types.Seccomp {
Names: []string{
"syslog",
},
Action: types.ActAllow,
Args: []*types.Arg{},
Includes: types.Filter{
Action: ActAllow,
Args: []*Arg{},
Includes: Filter{
Caps: []string{"CAP_SYSLOG"},
},
},
}
return &types.Seccomp{
DefaultAction: types.ActErrno,
return &Seccomp{
DefaultAction: ActErrno,
ArchMap: arches(),
Syscalls: syscalls,
}

View file

@ -1,4 +1,4 @@
package types // import "github.com/docker/docker/api/types"
package seccomp // import "github.com/docker/docker/profiles/seccomp"
// Seccomp represents the config for a seccomp profile for syscall restriction.
type Seccomp struct {

View file

@ -8,7 +8,6 @@ import (
"fmt"
"runtime"
"github.com/docker/docker/api/types"
"github.com/docker/docker/pkg/parsers/kernel"
specs "github.com/opencontainers/runtime-spec/specs-go"
)
@ -20,7 +19,7 @@ func GetDefaultProfile(rs *specs.Spec) (*specs.LinuxSeccomp, error) {
// LoadProfile takes a json string and decodes the seccomp profile.
func LoadProfile(body string, rs *specs.Spec) (*specs.LinuxSeccomp, error) {
var config types.Seccomp
var config Seccomp
if err := json.Unmarshal([]byte(body), &config); err != nil {
return nil, fmt.Errorf("Decoding seccomp profile failed: %v", err)
}
@ -28,21 +27,21 @@ func LoadProfile(body string, rs *specs.Spec) (*specs.LinuxSeccomp, error) {
}
// libseccomp string => seccomp arch
var nativeToSeccomp = map[string]types.Arch{
"x86": types.ArchX86,
"amd64": types.ArchX86_64,
"arm": types.ArchARM,
"arm64": types.ArchAARCH64,
"mips64": types.ArchMIPS64,
"mips64n32": types.ArchMIPS64N32,
"mipsel64": types.ArchMIPSEL64,
"mips3l64n32": types.ArchMIPSEL64N32,
"mipsle": types.ArchMIPSEL,
"ppc": types.ArchPPC,
"ppc64": types.ArchPPC64,
"ppc64le": types.ArchPPC64LE,
"s390": types.ArchS390,
"s390x": types.ArchS390X,
var nativeToSeccomp = map[string]Arch{
"x86": ArchX86,
"amd64": ArchX86_64,
"arm": ArchARM,
"arm64": ArchAARCH64,
"mips64": ArchMIPS64,
"mips64n32": ArchMIPS64N32,
"mipsel64": ArchMIPSEL64,
"mips3l64n32": ArchMIPSEL64N32,
"mipsle": ArchMIPSEL,
"ppc": ArchPPC,
"ppc64": ArchPPC64,
"ppc64le": ArchPPC64LE,
"s390": ArchS390,
"s390x": ArchS390X,
}
// GOARCH => libseccomp string
@ -74,7 +73,7 @@ func inSlice(slice []string, s string) bool {
return false
}
func setupSeccomp(config *types.Seccomp, rs *specs.Spec) (*specs.LinuxSeccomp, error) {
func setupSeccomp(config *Seccomp, rs *specs.Spec) (*specs.LinuxSeccomp, error) {
if config == nil {
return nil, nil
}
@ -170,7 +169,7 @@ Loop:
return newConfig, nil
}
func createSpecsSyscall(names []string, action types.Action, args []*types.Arg) specs.LinuxSyscall {
func createSpecsSyscall(names []string, action Action, args []*Arg) specs.LinuxSyscall {
newCall := specs.LinuxSyscall{
Names: names,
Action: specs.LinuxSeccompAction(action),

View file

@ -2,11 +2,7 @@
package seccomp // import "github.com/docker/docker/profiles/seccomp"
import (
"github.com/docker/docker/api/types"
)
// DefaultProfile returns a nil pointer on unsupported systems.
func DefaultProfile() *types.Seccomp {
func DefaultProfile() *Seccomp {
return nil
}