mirror of
https://github.com/tailscale/tailscale.git
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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>
85 lines
2.4 KiB
Go
85 lines
2.4 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build !ts_omit_debugportmapper
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package local
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import (
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"cmp"
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"context"
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"fmt"
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"io"
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"net/http"
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"net/netip"
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"net/url"
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"strconv"
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"time"
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"tailscale.com/client/tailscale/apitype"
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)
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// DebugPortmapOpts contains options for the [Client.DebugPortmap] command.
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type DebugPortmapOpts struct {
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// Duration is how long the mapping should be created for. It defaults
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// to 5 seconds if not set.
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Duration time.Duration
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// Type is the kind of portmap to debug. The empty string instructs the
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// portmap client to perform all known types. Other valid options are
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// "pmp", "pcp", and "upnp".
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Type string
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// GatewayAddr specifies the gateway address used during portmapping.
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// If set, SelfAddr must also be set. If unset, it will be
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// autodetected.
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GatewayAddr netip.Addr
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// SelfAddr specifies the gateway address used during portmapping. If
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// set, GatewayAddr must also be set. If unset, it will be
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// autodetected.
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SelfAddr netip.Addr
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// LogHTTP instructs the debug-portmap endpoint to print all HTTP
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// requests and responses made to the logs.
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LogHTTP bool
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}
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// DebugPortmap invokes the debug-portmap endpoint, and returns an
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// io.ReadCloser that can be used to read the logs that are printed during this
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// process.
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//
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// opts can be nil; if so, default values will be used.
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func (lc *Client) DebugPortmap(ctx context.Context, opts *DebugPortmapOpts) (io.ReadCloser, error) {
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vals := make(url.Values)
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if opts == nil {
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opts = &DebugPortmapOpts{}
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}
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vals.Set("duration", cmp.Or(opts.Duration, 5*time.Second).String())
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vals.Set("type", opts.Type)
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vals.Set("log_http", strconv.FormatBool(opts.LogHTTP))
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if opts.GatewayAddr.IsValid() != opts.SelfAddr.IsValid() {
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return nil, fmt.Errorf("both GatewayAddr and SelfAddr must be provided if one is")
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} else if opts.GatewayAddr.IsValid() {
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vals.Set("gateway_and_self", fmt.Sprintf("%s/%s", opts.GatewayAddr, opts.SelfAddr))
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}
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req, err := http.NewRequestWithContext(ctx, "GET", "http://"+apitype.LocalAPIHost+"/localapi/v0/debug-portmap?"+vals.Encode(), nil)
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if err != nil {
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return nil, err
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}
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res, err := lc.doLocalRequestNiceError(req)
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if err != nil {
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return nil, err
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}
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if res.StatusCode != 200 {
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body, _ := io.ReadAll(res.Body)
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res.Body.Close()
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return nil, fmt.Errorf("HTTP %s: %s", res.Status, body)
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}
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return res.Body, nil
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}
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