| David K. Bainbridge | 215e024 | 2017-09-05 23:18:24 -0700 | [diff] [blame^] | 1 | // Copyright 2017 The Go Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | // +build linux |
| 6 | |
| 7 | package ipv6 |
| 8 | |
| 9 | import ( |
| 10 | "unsafe" |
| 11 | |
| 12 | "golang.org/x/net/bpf" |
| 13 | "golang.org/x/net/internal/socket" |
| 14 | ) |
| 15 | |
| 16 | func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error { |
| 17 | prog := sockFProg{ |
| 18 | Len: uint16(len(f)), |
| 19 | Filter: (*sockFilter)(unsafe.Pointer(&f[0])), |
| 20 | } |
| 21 | b := (*[sizeofSockFprog]byte)(unsafe.Pointer(&prog))[:sizeofSockFprog] |
| 22 | return so.Set(c, b) |
| 23 | } |