Files
visor/pkg/abi/linux/seccomp.go
T
Michael PrattandShentubot 4d52a55201 Change copyright notice to "The gVisor Authors"
Based on the guidelines at
https://opensource.google.com/docs/releasing/authors/.

1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./'
2. Manual fixup of "Google Inc" references.
3. Add AUTHORS file. Authors may request to be added to this file.
4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS.

Fixes #209

PiperOrigin-RevId: 245823212
Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
2019-04-29 14:26:23 -07:00

66 lines
1.9 KiB
Go

// Copyright 2018 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package linux
import "fmt"
// Seccomp constants taken from <linux/seccomp.h>.
const (
SECCOMP_MODE_NONE = 0
SECCOMP_MODE_FILTER = 2
SECCOMP_RET_ACTION_FULL = 0xffff0000
SECCOMP_RET_ACTION = 0x7fff0000
SECCOMP_RET_DATA = 0x0000ffff
SECCOMP_SET_MODE_FILTER = 1
SECCOMP_FILTER_FLAG_TSYNC = 1
SECCOMP_GET_ACTION_AVAIL = 2
)
type BPFAction uint32
const (
SECCOMP_RET_KILL_PROCESS BPFAction = 0x80000000
SECCOMP_RET_KILL_THREAD = 0x00000000
SECCOMP_RET_TRAP = 0x00030000
SECCOMP_RET_ERRNO = 0x00050000
SECCOMP_RET_TRACE = 0x7ff00000
SECCOMP_RET_ALLOW = 0x7fff0000
)
func (a BPFAction) String() string {
switch a & SECCOMP_RET_ACTION_FULL {
case SECCOMP_RET_KILL_PROCESS:
return "kill process"
case SECCOMP_RET_KILL_THREAD:
return "kill thread"
case SECCOMP_RET_TRAP:
return fmt.Sprintf("trap (%d)", a.Data())
case SECCOMP_RET_ERRNO:
return fmt.Sprintf("errno (%d)", a.Data())
case SECCOMP_RET_TRACE:
return fmt.Sprintf("trace (%d)", a.Data())
case SECCOMP_RET_ALLOW:
return "allow"
}
return fmt.Sprintf("invalid action: %#x", a)
}
// Data returns the SECCOMP_RET_DATA portion of the action.
func (a BPFAction) Data() uint16 {
return uint16(a & SECCOMP_RET_DATA)
}