text: // Code generated by cmd/cgo -godefs; DO NOT EDIT.
  // cgo -godefs defs_linux.go
  
  package ipv4
  
  const (
  	sysIP_TOS             = 0x1
  	sysIP_TTL             = 0x2
  	sysIP_HDRINCL         = 0x3
  	sysIP_OPTIONS         = 0x4
  	sysIP_ROUTER_ALERT    = 0x5
  	sysIP_RECVOPTS        = 0x6
  	sysIP_RETOPTS         = 0x7
  	sysIP_PKTINFO         = 0x8
  	sysIP_PKTOPTIONS      = 0x9
  	sysIP_MTU_DISCOVER    = 0xa
  	sysIP_RECVERR         = 0xb
  	sysIP_RECVTTL         = 0xc
  	sysIP_RECVTOS         = 0xd
  	sysIP_MTU             = 0xe
  	sysIP_FREEBIND        = 0xf
  	sysIP_TRANSPARENT     = 0x13
  	sysIP_RECVRETOPTS     = 0x7
  	sysIP_ORIGDSTADDR     = 0x14
  	sysIP_RECVORIGDSTADDR = 0x14
  	sysIP_MINTTL          = 0x15
  	sysIP_NODEFRAG        = 0x16
  	sysIP_UNICAST_IF      = 0x32
  
  	sysIP_MULTICAST_IF           = 0x20
  	sysIP_MULTICAST_TTL          = 0x21
  	sysIP_MULTICAST_LOOP         = 0x22
  	sysIP_ADD_MEMBERSHIP         = 0x23
  	sysIP_DROP_MEMBERSHIP        = 0x24
  	sysIP_UNBLOCK_SOURCE         = 0x25
  	sysIP_BLOCK_SOURCE           = 0x26
  	sysIP_ADD_SOURCE_MEMBERSHIP  = 0x27
  	sysIP_DROP_SOURCE_MEMBERSHIP = 0x28
  	sysIP_MSFILTER               = 0x29
  	sysMCAST_JOIN_GROUP          = 0x2a
  	sysMCAST_LEAVE_GROUP         = 0x2d
  	sysMCAST_JOIN_SOURCE_GROUP   = 0x2e
  	sysMCAST_LEAVE_SOURCE_GROUP  = 0x2f
  	sysMCAST_BLOCK_SOURCE        = 0x2b
  	sysMCAST_UNBLOCK_SOURCE      = 0x2c
  	sysMCAST_MSFILTER            = 0x30
  	sysIP_MULTICAST_ALL          = 0x31
  
  	sysICMP_FILTER = 0x1
  
  	sysSO_EE_ORIGIN_NONE         = 0x0
  	sysSO_EE_ORIGIN_LOCAL        = 0x1
  	sysSO_EE_ORIGIN_ICMP         = 0x2
  	sysSO_EE_ORIGIN_ICMP6        = 0x3
  	sysSO_EE_ORIGIN_TXSTATUS     = 0x4
  	sysSO_EE_ORIGIN_TIMESTAMPING = 0x4
  
  	sizeofKernelSockaddrStorage = 0x80
  	sizeofSockaddrInet          = 0x10
  	sizeofInetPktinfo           = 0xc
  	sizeofSockExtendedErr       = 0x10
  
  	sizeofIPMreq         = 0x8
  	sizeofIPMreqn        = 0xc
  	sizeofIPMreqSource   = 0xc
  	sizeofGroupReq       = 0x84
  	sizeofGroupSourceReq = 0x104
  
  	sizeofICMPFilter = 0x4
  )
  
  type kernelSockaddrStorage struct {
  	Family  uint16
  	X__data [126]int8
  }
  
  type sockaddrInet struct {
  	Family uint16
  	Port   uint16
  	Addr   [4]byte /* in_addr */
  	X__pad [8]uint8
  }
  
  type inetPktinfo struct {
  	Ifindex  int32
  	Spec_dst [4]byte /* in_addr */
  	Addr     [4]byte /* in_addr */
  }
  
  type sockExtendedErr struct {
  	Errno  uint32
  	Origin uint8
  	Type   uint8
  	Code   uint8
  	Pad    uint8
  	Info   uint32
  	Data   uint32
  }
  
  type ipMreq struct {
  	Multiaddr [4]byte /* in_addr */
  	Interface [4]byte /* in_addr */
  }
  
  type ipMreqn struct {
  	Multiaddr [4]byte /* in_addr */
  	Address   [4]byte /* in_addr */
  	Ifindex   int32
  }
  
  type ipMreqSource struct {
  	Multiaddr  uint32
  	Interface  uint32
  	Sourceaddr uint32
  }
  
  type groupReq struct {
  	Interface uint32
  	Group     kernelSockaddrStorage
  }
  
  type groupSourceReq struct {
  	Interface uint32
  	Group     kernelSockaddrStorage
  	Source    kernelSockaddrStorage
  }
  
  type icmpFilter struct {
  	Data uint32
  }
  