mirror of
https://github.com/mainflux/mainflux.git
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481b5b230d
All validation has been moved to the API resources layer, i.e. the domain objects provide validation method, but the service itself assumes no corrupted values are passed to it. Signed-off-by: Dejan Mijic <dejan@mainflux.com>
129 lines
3.1 KiB
Go
129 lines
3.1 KiB
Go
// Copyright 2013 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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package ipv6
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import (
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"net"
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"syscall"
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"time"
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"golang.org/x/net/internal/socket"
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)
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// BUG(mikio): On Windows, the JoinSourceSpecificGroup,
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// LeaveSourceSpecificGroup, ExcludeSourceSpecificGroup and
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// IncludeSourceSpecificGroup methods of PacketConn are not
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// implemented.
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// A Conn represents a network endpoint that uses IPv6 transport.
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// It allows to set basic IP-level socket options such as traffic
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// class and hop limit.
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type Conn struct {
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genericOpt
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}
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type genericOpt struct {
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*socket.Conn
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}
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func (c *genericOpt) ok() bool { return c != nil && c.Conn != nil }
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// PathMTU returns a path MTU value for the destination associated
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// with the endpoint.
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func (c *Conn) PathMTU() (int, error) {
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if !c.ok() {
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return 0, syscall.EINVAL
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}
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so, ok := sockOpts[ssoPathMTU]
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if !ok {
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return 0, errOpNoSupport
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}
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_, mtu, err := so.getMTUInfo(c.Conn)
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if err != nil {
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return 0, err
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}
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return mtu, nil
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}
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// NewConn returns a new Conn.
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func NewConn(c net.Conn) *Conn {
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cc, _ := socket.NewConn(c)
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return &Conn{
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genericOpt: genericOpt{Conn: cc},
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}
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}
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// A PacketConn represents a packet network endpoint that uses IPv6
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// transport. It is used to control several IP-level socket options
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// including IPv6 header manipulation. It also provides datagram
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// based network I/O methods specific to the IPv6 and higher layer
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// protocols such as OSPF, GRE, and UDP.
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type PacketConn struct {
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genericOpt
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dgramOpt
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payloadHandler
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}
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type dgramOpt struct {
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*socket.Conn
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}
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func (c *dgramOpt) ok() bool { return c != nil && c.Conn != nil }
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// SetControlMessage allows to receive the per packet basis IP-level
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// socket options.
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func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error {
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if !c.payloadHandler.ok() {
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return syscall.EINVAL
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}
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return setControlMessage(c.dgramOpt.Conn, &c.payloadHandler.rawOpt, cf, on)
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}
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// SetDeadline sets the read and write deadlines associated with the
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// endpoint.
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func (c *PacketConn) SetDeadline(t time.Time) error {
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if !c.payloadHandler.ok() {
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return syscall.EINVAL
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}
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return c.payloadHandler.SetDeadline(t)
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}
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// SetReadDeadline sets the read deadline associated with the
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// endpoint.
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func (c *PacketConn) SetReadDeadline(t time.Time) error {
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if !c.payloadHandler.ok() {
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return syscall.EINVAL
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}
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return c.payloadHandler.SetReadDeadline(t)
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}
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// SetWriteDeadline sets the write deadline associated with the
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// endpoint.
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func (c *PacketConn) SetWriteDeadline(t time.Time) error {
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if !c.payloadHandler.ok() {
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return syscall.EINVAL
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}
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return c.payloadHandler.SetWriteDeadline(t)
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}
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// Close closes the endpoint.
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func (c *PacketConn) Close() error {
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if !c.payloadHandler.ok() {
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return syscall.EINVAL
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}
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return c.payloadHandler.Close()
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}
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// NewPacketConn returns a new PacketConn using c as its underlying
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// transport.
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func NewPacketConn(c net.PacketConn) *PacketConn {
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cc, _ := socket.NewConn(c.(net.Conn))
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return &PacketConn{
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genericOpt: genericOpt{Conn: cc},
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dgramOpt: dgramOpt{Conn: cc},
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payloadHandler: payloadHandler{PacketConn: c, Conn: cc},
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}
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}
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