blob: 7c36ce9ee970f0ba47a7d197e4a2ce3b57fb39a6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
package container
import (
"syscall"
"unsafe"
)
const (
_LINUX_CAPABILITY_VERSION_3 = 0x20080522
PR_CAP_AMBIENT = 0x2f
PR_CAP_AMBIENT_RAISE = 0x2
PR_CAP_AMBIENT_CLEAR_ALL = 0x4
CAP_SYS_ADMIN = 0x15
CAP_SETPCAP = 0x8
)
type (
capHeader struct {
version uint32
pid int32
}
capData struct {
effective uint32
permitted uint32
inheritable uint32
}
)
// See CAP_TO_INDEX in linux/capability.h:
func capToIndex(cap uintptr) uintptr { return cap >> 5 }
// See CAP_TO_MASK in linux/capability.h:
func capToMask(cap uintptr) uint32 { return 1 << uint(cap&31) }
func capset(hdrp *capHeader, datap *[2]capData) error {
if _, _, errno := syscall.Syscall(syscall.SYS_CAPSET,
uintptr(unsafe.Pointer(hdrp)),
uintptr(unsafe.Pointer(&datap[0])), 0); errno != 0 {
return errno
}
return nil
}
|
