mirror of
https://github.com/bolucat/Archive.git
synced 2026-04-22 16:07:49 +08:00
github-action[bot]
134 lines
4.0 KiB
Go
134 lines
4.0 KiB
Go
// Copyright (C) 2023 mieru authors
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <https://www.gnu.org/licenses/>
|
|
|
|
package protocol
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
|
|
"github.com/enfein/mieru/v3/pkg/appctl/appctlpb"
|
|
"github.com/enfein/mieru/v3/pkg/common"
|
|
"github.com/enfein/mieru/v3/pkg/metrics"
|
|
)
|
|
|
|
var (
|
|
UnderlayMaxConn = metrics.RegisterMetric("underlay", "MaxConn", metrics.GAUGE)
|
|
UnderlayActiveOpens = metrics.RegisterMetric("underlay", "ActiveOpens", metrics.COUNTER)
|
|
UnderlayPassiveOpens = metrics.RegisterMetric("underlay", "PassiveOpens", metrics.COUNTER)
|
|
UnderlayCurrEstablished = metrics.RegisterMetric("underlay", "CurrEstablished", metrics.GAUGE)
|
|
UnderlayMalformedUDP = metrics.RegisterMetric("underlay", "UnderlayMalformedUDP", metrics.COUNTER)
|
|
UnderlayUnsolicitedUDP = metrics.RegisterMetric("underlay", "UnsolicitedUDP", metrics.COUNTER)
|
|
)
|
|
|
|
// UnderlayProperties defines network properties of a underlay.
|
|
type UnderlayProperties interface {
|
|
// Maximum transission unit of this network connection
|
|
// in the current network layer.
|
|
MTU() int
|
|
|
|
// The transport protocol used to implement the underlay.
|
|
TransportProtocol() common.TransportProtocol
|
|
|
|
// LocalAddr implements net.Conn interface.
|
|
LocalAddr() net.Addr
|
|
|
|
// RemoteAddr implements net.Conn interface.
|
|
RemoteAddr() net.Addr
|
|
}
|
|
|
|
// Underlay contains methods implemented by a underlay network connection.
|
|
type Underlay interface {
|
|
// Accept incoming sessions.
|
|
net.Listener
|
|
|
|
// Store basic network properties.
|
|
UnderlayProperties
|
|
|
|
// Add a session to the underlay connection.
|
|
// Optionally, the remote network address can be specified for the session.
|
|
// The session is ready to use when this returns.
|
|
AddSession(*Session, net.Addr) error
|
|
|
|
// Remove a session from the underlay connection.
|
|
// The session is destroyed when this returns.
|
|
RemoveSession(*Session) error
|
|
|
|
// Returns the number of sessions.
|
|
SessionCount() int
|
|
|
|
// Returns detailed information of all the sessions.
|
|
SessionInfos() []*appctlpb.SessionInfo
|
|
|
|
// Number of bytes received from the network.
|
|
InBytes() int64
|
|
|
|
// Number of bytes sent to the network.
|
|
OutBytes() int64
|
|
|
|
// Run event loop.
|
|
// The underlay needs to be closed when this returns.
|
|
RunEventLoop(context.Context) error
|
|
|
|
// Return the schedule controller.
|
|
Scheduler() *ScheduleController
|
|
|
|
// Indicate the underlay is closed.
|
|
Done() chan struct{}
|
|
}
|
|
|
|
// underlayDescriptor implements UnderlayProperties.
|
|
type underlayDescriptor struct {
|
|
mtu int
|
|
transportProtocol common.TransportProtocol
|
|
localAddr net.Addr
|
|
remoteAddr net.Addr
|
|
}
|
|
|
|
var _ UnderlayProperties = &underlayDescriptor{}
|
|
|
|
func (d *underlayDescriptor) MTU() int {
|
|
return d.mtu
|
|
}
|
|
|
|
func (d *underlayDescriptor) TransportProtocol() common.TransportProtocol {
|
|
return d.transportProtocol
|
|
}
|
|
|
|
func (d *underlayDescriptor) LocalAddr() net.Addr {
|
|
return d.localAddr
|
|
}
|
|
|
|
func (d *underlayDescriptor) RemoteAddr() net.Addr {
|
|
return d.remoteAddr
|
|
}
|
|
|
|
// NewUnderlayProperties creates a new instance of UnderlayProperties.
|
|
func NewUnderlayProperties(mtu int, transportProtocol common.TransportProtocol, localAddr net.Addr, remoteAddr net.Addr) UnderlayProperties {
|
|
d := &underlayDescriptor{
|
|
mtu: mtu,
|
|
transportProtocol: transportProtocol,
|
|
localAddr: localAddr,
|
|
remoteAddr: remoteAddr,
|
|
}
|
|
if localAddr == nil {
|
|
d.localAddr = common.NilNetAddr()
|
|
}
|
|
if remoteAddr == nil {
|
|
d.remoteAddr = common.NilNetAddr()
|
|
}
|
|
return d
|
|
}
|