91 lines
2.2 KiB
Go
91 lines
2.2 KiB
Go
package netlink
|
|
|
|
import (
|
|
"syscall"
|
|
"unsafe"
|
|
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
// ioctl for statistics.
|
|
const (
|
|
// ETHTOOL_GSSET_INFO gets string set info
|
|
ETHTOOL_GSSET_INFO = 0x00000037
|
|
// SIOCETHTOOL is Ethtool interface
|
|
SIOCETHTOOL = 0x8946
|
|
// ETHTOOL_GSTRINGS gets specified string set
|
|
ETHTOOL_GSTRINGS = 0x0000001b
|
|
// ETHTOOL_GSTATS gets NIC-specific statistics
|
|
ETHTOOL_GSTATS = 0x0000001d
|
|
)
|
|
|
|
// string set id.
|
|
const (
|
|
// ETH_SS_TEST is self-test result names, for use with %ETHTOOL_TEST
|
|
ETH_SS_TEST = iota
|
|
// ETH_SS_STATS statistic names, for use with %ETHTOOL_GSTATS
|
|
ETH_SS_STATS
|
|
// ETH_SS_PRIV_FLAGS are driver private flag names
|
|
ETH_SS_PRIV_FLAGS
|
|
// _ETH_SS_NTUPLE_FILTERS is deprecated
|
|
_ETH_SS_NTUPLE_FILTERS
|
|
// ETH_SS_FEATURES are device feature names
|
|
ETH_SS_FEATURES
|
|
// ETH_SS_RSS_HASH_FUNCS is RSS hush function names
|
|
ETH_SS_RSS_HASH_FUNCS
|
|
)
|
|
|
|
// IfreqSlave is a struct for ioctl bond manipulation syscalls.
|
|
// It is used to assign slave to bond interface with Name.
|
|
type IfreqSlave struct {
|
|
Name [unix.IFNAMSIZ]byte
|
|
Slave [unix.IFNAMSIZ]byte
|
|
}
|
|
|
|
// Ifreq is a struct for ioctl ethernet manipulation syscalls.
|
|
type Ifreq struct {
|
|
Name [unix.IFNAMSIZ]byte
|
|
Data uintptr
|
|
}
|
|
|
|
// ethtoolSset is a string set information
|
|
type ethtoolSset struct {
|
|
cmd uint32
|
|
reserved uint32
|
|
mask uint64
|
|
data [1]uint32
|
|
}
|
|
|
|
type ethtoolStats struct {
|
|
cmd uint32
|
|
nStats uint32
|
|
// Followed by nStats * []uint64.
|
|
}
|
|
|
|
// newIocltSlaveReq returns filled IfreqSlave with proper interface names
|
|
// It is used by ioctl to assign slave to bond master
|
|
func newIocltSlaveReq(slave, master string) *IfreqSlave {
|
|
ifreq := &IfreqSlave{}
|
|
copy(ifreq.Name[:unix.IFNAMSIZ-1], master)
|
|
copy(ifreq.Slave[:unix.IFNAMSIZ-1], slave)
|
|
return ifreq
|
|
}
|
|
|
|
// newIocltStringSetReq creates request to get interface string set
|
|
func newIocltStringSetReq(linkName string) (*Ifreq, *ethtoolSset) {
|
|
e := ðtoolSset{
|
|
cmd: ETHTOOL_GSSET_INFO,
|
|
mask: 1 << ETH_SS_STATS,
|
|
}
|
|
|
|
ifreq := &Ifreq{Data: uintptr(unsafe.Pointer(e))}
|
|
copy(ifreq.Name[:unix.IFNAMSIZ-1], linkName)
|
|
return ifreq, e
|
|
}
|
|
|
|
// getSocketUDP returns file descriptor to new UDP socket
|
|
// It is used for communication with ioctl interface.
|
|
func getSocketUDP() (int, error) {
|
|
return syscall.Socket(unix.AF_INET, unix.SOCK_DGRAM, 0)
|
|
}
|