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Source file src/syscall/bpf_bsd.go

Documentation: syscall

  // Copyright 2011 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  // +build darwin dragonfly freebsd netbsd openbsd
  
  // Berkeley packet filter for BSD variants
  
  package syscall
  
  import (
  	"unsafe"
  )
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func BpfStmt(code, k int) *BpfInsn {
  	return &BpfInsn{Code: uint16(code), K: uint32(k)}
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func BpfJump(code, k, jt, jf int) *BpfInsn {
  	return &BpfInsn{Code: uint16(code), Jt: uint8(jt), Jf: uint8(jf), K: uint32(k)}
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func BpfBuflen(fd int) (int, error) {
  	var l int
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGBLEN, uintptr(unsafe.Pointer(&l)))
  	if err != 0 {
  		return 0, Errno(err)
  	}
  	return l, nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func SetBpfBuflen(fd, l int) (int, error) {
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSBLEN, uintptr(unsafe.Pointer(&l)))
  	if err != 0 {
  		return 0, Errno(err)
  	}
  	return l, nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func BpfDatalink(fd int) (int, error) {
  	var t int
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGDLT, uintptr(unsafe.Pointer(&t)))
  	if err != 0 {
  		return 0, Errno(err)
  	}
  	return t, nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func SetBpfDatalink(fd, t int) (int, error) {
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSDLT, uintptr(unsafe.Pointer(&t)))
  	if err != 0 {
  		return 0, Errno(err)
  	}
  	return t, nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func SetBpfPromisc(fd, m int) error {
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCPROMISC, uintptr(unsafe.Pointer(&m)))
  	if err != 0 {
  		return Errno(err)
  	}
  	return nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func FlushBpf(fd int) error {
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCFLUSH, 0)
  	if err != 0 {
  		return Errno(err)
  	}
  	return nil
  }
  
  type ivalue struct {
  	name  [IFNAMSIZ]byte
  	value int16
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func BpfInterface(fd int, name string) (string, error) {
  	var iv ivalue
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGETIF, uintptr(unsafe.Pointer(&iv)))
  	if err != 0 {
  		return "", Errno(err)
  	}
  	return name, nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func SetBpfInterface(fd int, name string) error {
  	var iv ivalue
  	copy(iv.name[:], []byte(name))
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSETIF, uintptr(unsafe.Pointer(&iv)))
  	if err != 0 {
  		return Errno(err)
  	}
  	return nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func BpfTimeout(fd int) (*Timeval, error) {
  	var tv Timeval
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGRTIMEOUT, uintptr(unsafe.Pointer(&tv)))
  	if err != 0 {
  		return nil, Errno(err)
  	}
  	return &tv, nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func SetBpfTimeout(fd int, tv *Timeval) error {
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSRTIMEOUT, uintptr(unsafe.Pointer(tv)))
  	if err != 0 {
  		return Errno(err)
  	}
  	return nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func BpfStats(fd int) (*BpfStat, error) {
  	var s BpfStat
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGSTATS, uintptr(unsafe.Pointer(&s)))
  	if err != 0 {
  		return nil, Errno(err)
  	}
  	return &s, nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func SetBpfImmediate(fd, m int) error {
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCIMMEDIATE, uintptr(unsafe.Pointer(&m)))
  	if err != 0 {
  		return Errno(err)
  	}
  	return nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func SetBpf(fd int, i []BpfInsn) error {
  	var p BpfProgram
  	p.Len = uint32(len(i))
  	p.Insns = (*BpfInsn)(unsafe.Pointer(&i[0]))
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSETF, uintptr(unsafe.Pointer(&p)))
  	if err != 0 {
  		return Errno(err)
  	}
  	return nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func CheckBpfVersion(fd int) error {
  	var v BpfVersion
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCVERSION, uintptr(unsafe.Pointer(&v)))
  	if err != 0 {
  		return Errno(err)
  	}
  	if v.Major != BPF_MAJOR_VERSION || v.Minor != BPF_MINOR_VERSION {
  		return EINVAL
  	}
  	return nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func BpfHeadercmpl(fd int) (int, error) {
  	var f int
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCGHDRCMPLT, uintptr(unsafe.Pointer(&f)))
  	if err != 0 {
  		return 0, Errno(err)
  	}
  	return f, nil
  }
  
  // Deprecated: Use golang.org/x/net/bpf instead.
  func SetBpfHeadercmpl(fd, f int) error {
  	_, _, err := Syscall(SYS_IOCTL, uintptr(fd), BIOCSHDRCMPLT, uintptr(unsafe.Pointer(&f)))
  	if err != 0 {
  		return Errno(err)
  	}
  	return nil
  }
  

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