25 lines
611 B
Go
Vendored
25 lines
611 B
Go
Vendored
// Copyright 2017 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 linux
|
|
// +build linux
|
|
|
|
package ipv6
|
|
|
|
import (
|
|
"unsafe"
|
|
|
|
"golang.org/x/net/bpf"
|
|
"golang.org/x/net/internal/socket"
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error {
|
|
prog := unix.SockFprog{
|
|
Len: uint16(len(f)),
|
|
Filter: (*unix.SockFilter)(unsafe.Pointer(&f[0])),
|
|
}
|
|
b := (*[unix.SizeofSockFprog]byte)(unsafe.Pointer(&prog))[:unix.SizeofSockFprog]
|
|
return so.Set(c, b)
|
|
}
|