diff options
Diffstat (limited to '')
-rw-r--r-- | src/syscall/bpf_bsd.go | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/syscall/bpf_bsd.go b/src/syscall/bpf_bsd.go new file mode 100644 index 0000000..27d0ca3 --- /dev/null +++ b/src/syscall/bpf_bsd.go @@ -0,0 +1,187 @@ +// 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 +} |