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Merge pull request #31 from wmnsk/cleanup-improvements
Support all params & add XUDT
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| // Copyright 2018-2024 go-sccp authors. All rights reserved. | ||
| // Use of this source code is governed by a MIT-style license that can be | ||
| // found in the LICENSE file. | ||
|
|
||
| /* | ||
| Command receiver receives SCCP messages from the client and prints them out. | ||
| */ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "flag" | ||
| "io" | ||
| "log" | ||
| "net" | ||
| "time" | ||
|
|
||
| "github.com/wmnsk/go-m3ua/messages/params" | ||
| "github.com/wmnsk/go-sccp" | ||
|
|
||
| "github.com/ishidawataru/sctp" | ||
| "github.com/wmnsk/go-m3ua" | ||
| ) | ||
|
|
||
| func serve(conn *m3ua.Conn) { | ||
| defer conn.Close() | ||
|
|
||
| buf := make([]byte, 1500) | ||
| for { | ||
| n, err := conn.Read(buf) | ||
| if err != nil { | ||
| if errors.Is(err, io.EOF) || errors.Is(err, net.ErrClosed) { | ||
| log.Printf("Closed M3UA conn with: %s, waiting to come back on", conn.RemoteAddr()) | ||
| return | ||
| } | ||
| log.Printf("Error reading from M3UA conn: %s", err) | ||
| return | ||
| } | ||
|
|
||
| b := make([]byte, n) | ||
| copy(b, buf[:n]) | ||
| go func() { | ||
| msg, err := sccp.ParseMessage(b) | ||
| if err != nil { | ||
| log.Printf("Failed to parse SCCP message: %s, %x", err, b) | ||
| return | ||
| } | ||
|
|
||
| log.Printf("Received SCCP message: %v", msg) | ||
| }() | ||
| } | ||
| } | ||
|
|
||
| func main() { | ||
| var ( | ||
| addr = flag.String("addr", "127.0.0.1:2905", "Source IP and Port listen.") | ||
| ) | ||
| flag.Parse() | ||
|
|
||
| // see go-m3ua for the details of the configuration. | ||
| // https://github.com/wmnsk/go-m3ua | ||
| config := m3ua.NewServerConfig( | ||
| &m3ua.HeartbeatInfo{ | ||
| Enabled: true, | ||
| Interval: 0, | ||
| Timer: time.Duration(5 * time.Second), | ||
| }, | ||
| 0x22222222, // OriginatingPointCode | ||
| 0x11111111, // DestinationPointCode | ||
| 1, // AspIdentifier | ||
| params.TrafficModeLoadshare, // TrafficModeType | ||
| 0, // NetworkAppearance | ||
| 0, // CorrelationID | ||
| []uint32{1, 2}, // RoutingContexts | ||
| params.ServiceIndSCCP, // ServiceIndicator | ||
| 0, // NetworkIndicator | ||
| 0, // MessagePriority | ||
| 1, // SignalingLinkSelection | ||
| ) | ||
| config.AspIdentifier = nil | ||
| config.CorrelationID = nil | ||
|
|
||
| laddr, err := sctp.ResolveSCTPAddr("sctp", *addr) | ||
| if err != nil { | ||
| log.Fatalf("Failed to resolve SCTP address: %s", err) | ||
| } | ||
|
|
||
| listener, err := m3ua.Listen("m3ua", laddr, config) | ||
| if err != nil { | ||
| log.Fatalf("Failed to listen: %s", err) | ||
| } | ||
| log.Printf("Waiting for connection on: %s", listener.Addr()) | ||
|
|
||
| ctx := context.Background() | ||
| ctx, cancel := context.WithCancel(ctx) | ||
| defer cancel() | ||
|
|
||
| for { | ||
| conn, err := listener.Accept(ctx) | ||
| if err != nil { | ||
| log.Fatalf("Failed to accept M3UA: %s", err) | ||
| } | ||
| log.Printf("Connected with: %s", conn.RemoteAddr()) | ||
|
|
||
| go serve(conn) | ||
| } | ||
| } |
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