kmgSys

package

v0.0.0-...-05317bf Latest Latest Go to latest Published: Nov 21, 2015 License: MIT Imports: 20 Imported by: 0

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Repository

github.com/keysonZZZ/kmg

Links

Open Source Insights

Documentation ¶

Rendered for

Index ¶

Constants
Variables
func Cpu() (used float64, numOfCore int)
func Disk() (used float64, total int)
func FindDeviceNameByIp(ip string) string
func GetCurrentExecutePath() (string, error)
func GetCurrentUserHomeDir() string
func IKEUserCount() int
func IsIpForwardOn() bool
func Memory() (used float64, total int)
func MustIsRoot() bool
func MustIsRootOnCmd()
func MustSetCurrentMaxFileNum(limit uint64)
func MustSetIptableRule(rule IptableRule)
func NetworkConnection() (connectionCount int)
func NetworkRXTX(deviceName string) (rx int, tx int)
func RecoverPath()
func SetCurrentMaxFileNum(limit uint64) (err error)
func SetIpForwardOn()
func SetP2PIpAndUp(req SetP2PIpRequest) error
func SyncTime()
func UsagePreInstall()
type DeviceType
- func (s DeviceType) String() string
type IptableRule
- func MustGetIptableRuleList() []IptableRule
type RouteRule
- func MustGetDefaultRoute() *RouteRule
- func MustGetRouteTable() []*RouteRule
type SetP2PIpRequest
type TunTapInterface
- func NewTap(ifName string) (ifce TunTapInterface, err error)
- func NewTun(ifName string) (ifce TunTapInterface, err error)
- func NewTunNoName() (ifce TunTapInterface, err error)

Constants ¶

View Source

const MaxMaxFileNum = 1048576

经过多次尝试,发现这个值只能设置到 1048576

Variables ¶

View Source

var ErrAllDeviceBusy = errors.New("tun/tap: all dev is busy.")

View Source

var ErrPlatformNotSupport = errors.New("Platform Not Support")

Functions ¶

func Cpu ¶

func Cpu() (used float64, numOfCore int)

func Disk ¶

func Disk() (used float64, total int)

只返回 / 挂载的磁盘空间 total 1024byte 的默认单位，没有选项改成byte

func FindDeviceNameByIp ¶

func FindDeviceNameByIp(ip string) string

获取外网网卡

func GetCurrentExecutePath ¶

func GetCurrentExecutePath() (string, error)

func GetCurrentUserHomeDir ¶

func GetCurrentUserHomeDir() string

func IKEUserCount ¶

func IKEUserCount() int

func IsIpForwardOn ¶

func IsIpForwardOn() bool

func Memory ¶

func Memory() (used float64, total int)

byte

func MustIsRoot ¶

func MustIsRoot() bool

是否是root,此处只返回是否,其他错误抛panic TODO 名字比较费解.

func MustIsRootOnCmd ¶

func MustIsRootOnCmd()

func MustSetCurrentMaxFileNum ¶

func MustSetCurrentMaxFileNum(limit uint64)

func MustSetIptableRule ¶

func MustSetIptableRule(rule IptableRule)

func NetworkConnection ¶

func NetworkConnection() (connectionCount int)

func NetworkRXTX ¶

func NetworkRXTX(deviceName string) (rx int, tx int)

byte

func RecoverPath ¶

func RecoverPath()

确保PATH里面包含 /usr/local/bin 和 /bin

func SetCurrentMaxFileNum ¶

func SetCurrentMaxFileNum(limit uint64) (err error)

func SetIpForwardOn ¶

func SetIpForwardOn()

证实可用

func SetP2PIpAndUp ¶

func SetP2PIpAndUp(req SetP2PIpRequest) error

set tun p2p ip and up this device mtu default to 1500

func SyncTime ¶

func SyncTime()

目前只支持 Ubuntu TODO data race?

func UsagePreInstall ¶

func UsagePreInstall()

Types ¶

type DeviceType ¶

type DeviceType string

var DeviceTypeTap DeviceType = "tap"

var DeviceTypeTun DeviceType = "tun"

func (DeviceType) String ¶

func (s DeviceType) String() string

type IptableRule ¶

type IptableRule struct {
	Table string // example: "nat"
	Rule  string // example: "-A PREROUTING -s 172.20.0.0/16 -p udp -m udp --dport 53 -j REDIRECT --to-ports 53"
}

func MustGetIptableRuleList ¶

func MustGetIptableRuleList() []IptableRule

type RouteRule ¶

type RouteRule struct {
	Destination string
	Gateway     string
	Genmask     string
	Iface       string
}

func MustGetDefaultRoute ¶

func MustGetDefaultRoute() *RouteRule

仅支持linux ipv4 返回nil表示没找到.

func MustGetRouteTable ¶

func MustGetRouteTable() []*RouteRule

仅支持linux ipv4

type SetP2PIpRequest ¶

type SetP2PIpRequest struct {
	IfaceName string // 必填
	SrcIp     net.IP // 必填
	DstIp     net.IP // 必填
	Mtu       int
	Mask      net.IPMask
}

type TunTapInterface ¶

type TunTapInterface interface {
	io.ReadWriteCloser
	GetDeviceType() DeviceType
	Name() string
}

Interface is a TUN/TAP interface.

func NewTap ¶

func NewTap(ifName string) (ifce TunTapInterface, err error)

Create a new TAP interface whose name is ifName. If ifName is empty, a default name (tap0, tap1, ... ) will be assigned. ifName should not exceed 16 bytes.

func NewTun ¶

func NewTun(ifName string) (ifce TunTapInterface, err error)

Create a new TUN interface whose name is ifName. If ifName is empty, a default name (tap0, tap1, ... ) will be assigned. ifName should not exceed 16 bytes.

func NewTunNoName ¶

func NewTunNoName() (ifce TunTapInterface, err error)

Source Files ¶

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