diff options
| author | kevin.xu <cming.xu@gmail.com> | 2020-04-27 21:51:31 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-04-27 21:51:31 +0800 |
| commit | e896ca54db67524afc20b644d43c72185e72dc0e (patch) | |
| tree | 2a16f3a62a5cafd098f1f028c621f1b655589d69 /pkg/abi/linux/ioctl.go | |
| parent | 1f19624fa127d7d59cabe29593cc80b7fe6c81f8 (diff) | |
| parent | 3c67754663f424f2ebbc0ff2a4c80e30618d5355 (diff) | |
Merge pull request #1 from google/master
catch up
Diffstat (limited to 'pkg/abi/linux/ioctl.go')
| -rw-r--r-- | pkg/abi/linux/ioctl.go | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/pkg/abi/linux/ioctl.go b/pkg/abi/linux/ioctl.go index 0e18db9ef..2062e6a4b 100644 --- a/pkg/abi/linux/ioctl.go +++ b/pkg/abi/linux/ioctl.go @@ -72,3 +72,29 @@ const ( SIOCGMIIPHY = 0x8947 SIOCGMIIREG = 0x8948 ) + +// ioctl(2) directions. Used to calculate requests number. +// Constants from asm-generic/ioctl.h. +const ( + _IOC_NONE = 0 + _IOC_WRITE = 1 + _IOC_READ = 2 +) + +// Constants from asm-generic/ioctl.h. +const ( + _IOC_NRBITS = 8 + _IOC_TYPEBITS = 8 + _IOC_SIZEBITS = 14 + _IOC_DIRBITS = 2 + + _IOC_NRSHIFT = 0 + _IOC_TYPESHIFT = _IOC_NRSHIFT + _IOC_NRBITS + _IOC_SIZESHIFT = _IOC_TYPESHIFT + _IOC_TYPEBITS + _IOC_DIRSHIFT = _IOC_SIZESHIFT + _IOC_SIZEBITS +) + +// IOC outputs the result of _IOC macro in asm-generic/ioctl.h. +func IOC(dir, typ, nr, size uint32) uint32 { + return uint32(dir)<<_IOC_DIRSHIFT | typ<<_IOC_TYPESHIFT | nr<<_IOC_NRSHIFT | size<<_IOC_SIZESHIFT +} |