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boundif: introduce API for socket binding

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This commit is contained in:
Jason A. Donenfeld
2019-03-03 05:01:06 +01:00
parent 69f0fe67b6
commit b8e85267cf
8 changed files with 155 additions and 21 deletions
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14
device/conn_default.go
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@@ -20,14 +20,14 @@ import (
* See conn_linux.go for an implementation on the linux platform.
*/
type NativeBind struct {
type nativeBind struct {
ipv4 *net.UDPConn
ipv6 *net.UDPConn
}
type NativeEndpoint net.UDPAddr
var _ Bind = (*NativeBind)(nil)
var _ Bind = (*nativeBind)(nil)
var _ Endpoint = (*NativeEndpoint)(nil)
func CreateEndpoint(s string) (Endpoint, error) {
@@ -100,7 +100,7 @@ func extractErrno(err error) error {
func CreateBind(uport uint16, device *Device) (Bind, uint16, error) {
var err error
var bind NativeBind
var bind nativeBind
port := int(uport)
@@ -119,7 +119,7 @@ func CreateBind(uport uint16, device *Device) (Bind, uint16, error) {
return &bind, uint16(port), nil
}
func (bind *NativeBind) Close() error {
func (bind *nativeBind) Close() error {
var err1, err2 error
if bind.ipv4 != nil {
err1 = bind.ipv4.Close()
@@ -133,7 +133,7 @@ func (bind *NativeBind) Close() error {
return err2
}
func (bind *NativeBind) ReceiveIPv4(buff []byte) (int, Endpoint, error) {
func (bind *nativeBind) ReceiveIPv4(buff []byte) (int, Endpoint, error) {
if bind.ipv4 == nil {
return 0, nil, syscall.EAFNOSUPPORT
}
@@ -144,7 +144,7 @@ func (bind *NativeBind) ReceiveIPv4(buff []byte) (int, Endpoint, error) {
return n, (*NativeEndpoint)(endpoint), err
}
func (bind *NativeBind) ReceiveIPv6(buff []byte) (int, Endpoint, error) {
func (bind *nativeBind) ReceiveIPv6(buff []byte) (int, Endpoint, error) {
if bind.ipv6 == nil {
return 0, nil, syscall.EAFNOSUPPORT
}
@@ -152,7 +152,7 @@ func (bind *NativeBind) ReceiveIPv6(buff []byte) (int, Endpoint, error) {
return n, (*NativeEndpoint)(endpoint), err
}
func (bind *NativeBind) Send(buff []byte, endpoint Endpoint) error {
func (bind *nativeBind) Send(buff []byte, endpoint Endpoint) error {
var err error
nend := endpoint.(*NativeEndpoint)
if nend.IP.To4() != nil {