zsyscall

package

v0.0.0-alpha.9 Latest Latest Go to latest Published: Jun 4, 2025 License: Apache-2.0 Imports: 4 Imported by: 1

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github.com/aileron-projects/go

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Documentation ¶

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Index ¶

Constants
type ControlFunc
type Controller
type SockIPOption
- func (c *SockIPOption) Controllers() []Controller
type SockIPV6Option
- func (c *SockIPV6Option) Controllers() []Controller
type SockOption
- func (o *SockOption) ControlFunc(opts uint) ControlFunc
type SockSOOption
- func (c *SockSOOption) Controllers() []Controller
type SockTCPOption
- func (c *SockTCPOption) Controllers() []Controller
type SockUDPOption
- func (c *SockUDPOption) Controllers() []Controller
type SocketError
- func (e *SocketError) Error() string
- func (e *SocketError) Is(err error) bool

Constants ¶

View Source

const (
	SockOptSO uint = 1 << iota
	SockOptIP
	SockOptIPV6
	SockOptTCP
	SockOptUDP
)

View Source

const (
	SO_BINDTOIFINDEX = 0x3e
	SO_REUSEPORT     = 0xf
	SO_ZEROCOPY      = 0x3c

	IP_BIND_ADDRESS_NO_PORT = 0x18
	IP_LOCAL_PORT_RANGE     = 0x33

	TCP_FASTOPEN         = 0x17
	TCP_FASTOPEN_CONNECT = 0x1e
	TCP_USER_TIMEOUT     = 0x12

	UDP_CORK    = 0x1
	UDP_GRO     = 0x68
	UDP_SEGMENT = 0x67
)

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type ControlFunc ¶

type ControlFunc func(string, string, syscall.RawConn) error

ControlFunc is the function type that handle RawConn.

type Controller ¶

type Controller func(fd uintptr) error

Controller is a function type that controls socket.

type SockIPOption ¶

type SockIPOption struct {
	BindAddressNoPort   bool   // IP_BIND_ADDRESS_NO_PORT (since Linux 4.2)
	FreeBind            bool   // IP_FREEBIND (since Linux 2.4)
	LocalPortRangeUpper uint16 // IP_LOCAL_PORT_RANGE (since Linux 6.3)
	LocalPortRangeLower uint16 // IP_LOCAL_PORT_RANGE (since Linux 6.3)
	Transparent         bool   // IP_TRANSPARENT (since Linux 2.6.24)
	TTL                 int    // IP_TTL (since Linux 1.0)
}

SockIPOption is socket options for IPPROTO_IP level.

https://man7.org/linux/man-pages/man7/ip.7.html

func (*SockIPOption) Controllers ¶

func (c *SockIPOption) Controllers() []Controller

type SockIPV6Option ¶

type SockIPV6Option struct {
	V6Only bool // IPV6_V6ONLY (since Linux 2.4.21 and 2.6)
}

SockIPV6Option is socket options for IPPROTO_IPV6 level.

https://man7.org/linux/man-pages/man7/ipv6.7.html

func (*SockIPV6Option) Controllers ¶

func (c *SockIPV6Option) Controllers() []Controller

type SockOption ¶

type SockOption struct {
	SO   *SockSOOption
	IP   *SockIPOption
	IPV6 *SockIPV6Option
	TCP  *SockTCPOption
	UDP  *SockUDPOption
}

SockOption is aggregated socket options.

func (*SockOption) ControlFunc ¶

func (o *SockOption) ControlFunc(opts uint) ControlFunc

ControlFunc returns a control function from options. Only specified options are enabled. For example, pass the SockOptSO and SockOptIP to enable both options as shown below.

ControlFunc(zsyscall.SockOptSO|zsyscall.SockOptIP)

type SockSOOption ¶

type SockSOOption struct {
	BindToIFindex      int           // SO_BINDTOIFINDEX
	BindToDevice       string        // SO_BINDTODEVICE
	Debug              bool          // SO_DEBUG
	KeepAlive          bool          // SO_KEEPALIVE
	Linger             int32         // SO_LINGER
	Mark               int           // SO_MARK (since Linux 2.6.25)
	ReceiveBuffer      int           // SO_RCVBUF
	ReceiveBufferForce int           // SO_RCVBUFFORCE (since Linux 2.6.14)
	ReceiveTimeout     time.Duration // SO_RCVTIMEO
	SendTimeout        time.Duration // SO_SNDTIMEO
	ReuseAddr          bool          // SO_REUSEADDR
	ReusePort          bool          // SO_REUSEPORT (since Linux 3.9)
	SendBuffer         int           // SO_SNDBUF
	SendBufferForce    int           // SO_SNDBUFFORCE (since Linux 2.6.14)
}

SockSOOption is socket options for SOL_SOCKET level.

func (*SockSOOption) Controllers ¶

func (c *SockSOOption) Controllers() []Controller

type SockTCPOption ¶

type SockTCPOption struct {
	CORK            bool  // TCP_CORK (since Linux 2.2)
	DeferAccept     int   // TCP_DEFER_ACCEPT (since Linux 2.4)
	KeepCount       int   // TCP_KEEPCNT (since Linux 2.4)
	KeepIdle        int   // TCP_KEEPIDLE (since Linux 2.4)
	KeepInterval    int   // TCP_KEEPINTVL (since Linux 2.4)
	Linger2         int32 // TCP_LINGER2 (since Linux 2.4)
	MaxSegment      int   // TCP_MAXSEG
	NoDelay         bool  // TCP_NODELAY
	QuickAck        bool  // TCP_QUICKACK (since Linux 2.4.4)
	SynCount        int   // TCP_SYNCNT (since Linux 2.4)
	UserTimeout     int   // TCP_USER_TIMEOUT (since Linux 2.6.37)
	WindowClamp     int   // TCP_WINDOW_CLAMP (since Linux 2.4)
	FastOpen        bool  // TCP_FASTOPEN (since Linux 3.6)
	FastOpenConnect bool  // TCP_FASTOPEN_CONNECT (since Linux 4.11)
}

SockTCPOption is socket options for IPPROTO_TCP level.

https://man7.org/linux/man-pages/man7/tcp.7.html

func (*SockTCPOption) Controllers ¶

func (c *SockTCPOption) Controllers() []Controller

type SockUDPOption ¶

type SockUDPOption struct {
	CORK    bool // UDP_CORK (since Linux 2.5.44)
	Segment int  // UDP_SEGMENT (since Linux 4.18)
	GRO     bool // UDP_GRO (since Linux 5.0)
}

SockUDPOption is socket options for IPPROTO_UDP level.

https://man7.org/linux/man-pages/man7/udp.7.html

func (*SockUDPOption) Controllers ¶

func (c *SockUDPOption) Controllers() []Controller

type SocketError ¶

type SocketError struct {
	Err  error
	Opts string
}

SocketError is an error type that tells an application of a socket option failed.

func (*SocketError) Error ¶

func (e *SocketError) Error() string

func (*SocketError) Is ¶

func (e *SocketError) Is(err error) bool

Source Files ¶

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