mirror of
https://github.com/tailscale/tailscale.git
synced 2026-02-15 02:12:07 -05:00
99b3f69126
Starting at a minimal binary and adding one feature back...
tailscaled tailscale combined (linux/amd64)
30073135 17451704 31543692 omitting everything
+ 480302 + 10258 + 493896 .. add debugportmapper
+ 475317 + 151943 + 467660 .. add portmapper
+ 500086 + 162873 + 510511 .. add portmapper+debugportmapper
Fixes #17148
Change-Id: I90bd0e9d1bd8cbe64fa2e885e9afef8fb5ee74b1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
80 lines
2.2 KiB
Go
80 lines
2.2 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build !ios && !ts_omit_debugportmapper
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package cli
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import (
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"context"
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"flag"
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"fmt"
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"io"
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"net/netip"
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"os"
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"time"
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"github.com/peterbourgon/ff/v3/ffcli"
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"tailscale.com/client/local"
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)
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func init() {
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debugPortmapCmd = mkDebugPortmapCmd
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}
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func mkDebugPortmapCmd() *ffcli.Command {
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return &ffcli.Command{
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Name: "portmap",
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ShortUsage: "tailscale debug portmap",
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Exec: debugPortmap,
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ShortHelp: "Run portmap debugging",
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FlagSet: (func() *flag.FlagSet {
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fs := newFlagSet("portmap")
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fs.DurationVar(&debugPortmapArgs.duration, "duration", 5*time.Second, "timeout for port mapping")
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fs.StringVar(&debugPortmapArgs.ty, "type", "", `portmap debug type (one of "", "pmp", "pcp", or "upnp")`)
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fs.StringVar(&debugPortmapArgs.gatewayAddr, "gateway-addr", "", `override gateway IP (must also pass --self-addr)`)
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fs.StringVar(&debugPortmapArgs.selfAddr, "self-addr", "", `override self IP (must also pass --gateway-addr)`)
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fs.BoolVar(&debugPortmapArgs.logHTTP, "log-http", false, `print all HTTP requests and responses to the log`)
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return fs
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})(),
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}
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}
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var debugPortmapArgs struct {
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duration time.Duration
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gatewayAddr string
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selfAddr string
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ty string
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logHTTP bool
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}
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func debugPortmap(ctx context.Context, args []string) error {
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opts := &local.DebugPortmapOpts{
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Duration: debugPortmapArgs.duration,
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Type: debugPortmapArgs.ty,
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LogHTTP: debugPortmapArgs.logHTTP,
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}
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if (debugPortmapArgs.gatewayAddr != "") != (debugPortmapArgs.selfAddr != "") {
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return fmt.Errorf("if one of --gateway-addr and --self-addr is provided, the other must be as well")
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}
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if debugPortmapArgs.gatewayAddr != "" {
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var err error
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opts.GatewayAddr, err = netip.ParseAddr(debugPortmapArgs.gatewayAddr)
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if err != nil {
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return fmt.Errorf("invalid --gateway-addr: %w", err)
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}
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opts.SelfAddr, err = netip.ParseAddr(debugPortmapArgs.selfAddr)
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if err != nil {
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return fmt.Errorf("invalid --self-addr: %w", err)
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}
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}
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rc, err := localClient.DebugPortmap(ctx, opts)
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if err != nil {
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return err
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}
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defer rc.Close()
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_, err = io.Copy(os.Stdout, rc)
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return err
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}
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