72 lines
1.7 KiB
Go
72 lines
1.7 KiB
Go
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// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
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package ipv4
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import (
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"net"
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"unsafe"
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"golang.org/x/net/bpf"
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"golang.org/x/net/internal/socket"
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)
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func (so *sockOpt) getMulticastInterface(c *socket.Conn) (*net.Interface, error) {
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switch so.typ {
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case ssoTypeIPMreqn:
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return so.getIPMreqn(c)
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default:
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return so.getMulticastIf(c)
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}
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}
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func (so *sockOpt) setMulticastInterface(c *socket.Conn, ifi *net.Interface) error {
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switch so.typ {
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case ssoTypeIPMreqn:
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return so.setIPMreqn(c, ifi, nil)
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default:
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return so.setMulticastIf(c, ifi)
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}
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}
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func (so *sockOpt) getICMPFilter(c *socket.Conn) (*ICMPFilter, error) {
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b := make([]byte, so.Len)
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n, err := so.Get(c, b)
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if err != nil {
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return nil, err
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}
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if n != sizeofICMPFilter {
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return nil, errOpNoSupport
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}
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return (*ICMPFilter)(unsafe.Pointer(&b[0])), nil
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}
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func (so *sockOpt) setICMPFilter(c *socket.Conn, f *ICMPFilter) error {
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b := (*[sizeofICMPFilter]byte)(unsafe.Pointer(f))[:sizeofICMPFilter]
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return so.Set(c, b)
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}
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func (so *sockOpt) setGroup(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
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switch so.typ {
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case ssoTypeIPMreq:
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return so.setIPMreq(c, ifi, grp)
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case ssoTypeIPMreqn:
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return so.setIPMreqn(c, ifi, grp)
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case ssoTypeGroupReq:
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return so.setGroupReq(c, ifi, grp)
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default:
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return errOpNoSupport
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}
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}
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func (so *sockOpt) setSourceGroup(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error {
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return so.setGroupSourceReq(c, ifi, grp, src)
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}
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func (so *sockOpt) setBPF(c *socket.Conn, f []bpf.RawInstruction) error {
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return so.setAttachFilter(c, f)
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}
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