// Copyright 2018 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. //go: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 := ioctlPtr(fd, BIOCGBLEN, unsafe.Pointer(&l)) if err != nil { return 0, err } return l, nil } // Deprecated: Use golang.org/x/net/bpf instead. func SetBpfBuflen(fd, l int) (int, error) { err := ioctlPtr(fd, BIOCSBLEN, unsafe.Pointer(&l)) if err != nil { return 0, err } return l, nil } // Deprecated: Use golang.org/x/net/bpf instead. func BpfDatalink(fd int) (int, error) { var t int err := ioctlPtr(fd, BIOCGDLT, unsafe.Pointer(&t)) if err != nil { return 0, err } return t, nil } // Deprecated: Use golang.org/x/net/bpf instead. func SetBpfDatalink(fd, t int) (int, error) { err := ioctlPtr(fd, BIOCSDLT, unsafe.Pointer(&t)) if err != nil { return 0, err } return t, nil } // Deprecated: Use golang.org/x/net/bpf instead. func SetBpfPromisc(fd, m int) error { err := ioctlPtr(fd, BIOCPROMISC, unsafe.Pointer(&m)) if err != nil { return err } return nil } // Deprecated: Use golang.org/x/net/bpf instead. func FlushBpf(fd int) error { err := ioctlPtr(fd, BIOCFLUSH, nil) if err != nil { return 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 := ioctlPtr(fd, BIOCGETIF, unsafe.Pointer(&iv)) if err != nil { return "", 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 := ioctlPtr(fd, BIOCSETIF, unsafe.Pointer(&iv)) if err != nil { return err } return nil } // Deprecated: Use golang.org/x/net/bpf instead. func BpfTimeout(fd int) (*Timeval, error) { var tv Timeval err := ioctlPtr(fd, BIOCGRTIMEOUT, unsafe.Pointer(&tv)) if err != nil { return nil, err } return &tv, nil } // Deprecated: Use golang.org/x/net/bpf instead. func SetBpfTimeout(fd int, tv *Timeval) error { err := ioctlPtr(fd, BIOCSRTIMEOUT, unsafe.Pointer(tv)) if err != nil { return err } return nil } // Deprecated: Use golang.org/x/net/bpf instead. func BpfStats(fd int) (*BpfStat, error) { var s BpfStat err := ioctlPtr(fd, BIOCGSTATS, unsafe.Pointer(&s)) if err != nil { return nil, err } return &s, nil } // Deprecated: Use golang.org/x/net/bpf instead. func SetBpfImmediate(fd, m int) error { err := ioctlPtr(fd, BIOCIMMEDIATE, unsafe.Pointer(&m)) if err != nil { return 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 := ioctlPtr(fd, BIOCSETF, unsafe.Pointer(&p)) if err != nil { return err } return nil } // Deprecated: Use golang.org/x/net/bpf instead. func CheckBpfVersion(fd int) error { var v BpfVersion err := ioctlPtr(fd, BIOCVERSION, unsafe.Pointer(&v)) if err != nil { return 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 := ioctlPtr(fd, BIOCGHDRCMPLT, unsafe.Pointer(&f)) if err != nil { return 0, err } return f, nil } // Deprecated: Use golang.org/x/net/bpf instead. func SetBpfHeadercmpl(fd, f int) error { err := ioctlPtr(fd, BIOCSHDRCMPLT, unsafe.Pointer(&f)) if err != nil { return err } return nil }