mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-26 03:25:35 +00:00
21509db121
I saw some panics in CI, like:
2024-05-08T04:30:25.9553518Z ## WARNING: (non-fatal) nil health.Tracker (being strict in CI):
2024-05-08T04:30:25.9554043Z goroutine 801 [running]:
2024-05-08T04:30:25.9554489Z tailscale.com/health.(*Tracker).nil(0x0)
2024-05-08T04:30:25.9555086Z tailscale.com/health/health.go:185 +0x70
2024-05-08T04:30:25.9555688Z tailscale.com/health.(*Tracker).SetUDP4Unbound(0x0, 0x0)
2024-05-08T04:30:25.9556373Z tailscale.com/health/health.go:532 +0x2f
2024-05-08T04:30:25.9557296Z tailscale.com/wgengine/magicsock.(*Conn).bindSocket(0xc0003b4808, 0xc0003b4878, {0x1fbca53, 0x4}, 0x0)
2024-05-08T04:30:25.9558301Z tailscale.com/wgengine/magicsock/magicsock.go:2481 +0x12c5
2024-05-08T04:30:25.9559026Z tailscale.com/wgengine/magicsock.(*Conn).rebind(0xc0003b4808, 0x0)
2024-05-08T04:30:25.9559874Z tailscale.com/wgengine/magicsock/magicsock.go:2510 +0x16f
2024-05-08T04:30:25.9561038Z tailscale.com/wgengine/magicsock.NewConn({0xc000063c80, 0x0, 0xc000197930, 0xc000197950, 0xc000197960, {0x0, 0x0}, 0xc000197970, 0xc000198ee0, 0x0, ...})
2024-05-08T04:30:25.9562402Z tailscale.com/wgengine/magicsock/magicsock.go:476 +0xd5f
2024-05-08T04:30:25.9563779Z tailscale.com/wgengine.NewUserspaceEngine(0xc000063c80, {{0x22c8750, 0xc0001976b0}, 0x0, {0x22c3210, 0xc000063c80}, {0x22c31d8, 0x2d3c900}, 0x0, 0x0, ...})
2024-05-08T04:30:25.9564982Z tailscale.com/wgengine/userspace.go:389 +0x159d
2024-05-08T04:30:25.9565529Z tailscale.com/ipn/ipnlocal.newTestBackend(0xc000358b60)
2024-05-08T04:30:25.9566086Z tailscale.com/ipn/ipnlocal/serve_test.go:675 +0x2a5
2024-05-08T04:30:25.9566612Z ta
Updates #11874
Change-Id: I3432ed52d670743e532be4642f38dbd6e3763b1b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
912 lines
24 KiB
Go
912 lines
24 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
||
// SPDX-License-Identifier: BSD-3-Clause
|
||
|
||
package ipnlocal
|
||
|
||
import (
|
||
"bytes"
|
||
"context"
|
||
"encoding/json"
|
||
"fmt"
|
||
"io"
|
||
"io/fs"
|
||
"math/rand"
|
||
"net/http"
|
||
"net/http/httptest"
|
||
"net/netip"
|
||
"os"
|
||
"path/filepath"
|
||
"slices"
|
||
"strings"
|
||
"testing"
|
||
|
||
"github.com/google/go-cmp/cmp"
|
||
"go4.org/netipx"
|
||
"golang.org/x/net/dns/dnsmessage"
|
||
"tailscale.com/appc"
|
||
"tailscale.com/appc/appctest"
|
||
"tailscale.com/client/tailscale/apitype"
|
||
"tailscale.com/health"
|
||
"tailscale.com/ipn"
|
||
"tailscale.com/ipn/store/mem"
|
||
"tailscale.com/tailcfg"
|
||
"tailscale.com/taildrop"
|
||
"tailscale.com/tstest"
|
||
"tailscale.com/types/logger"
|
||
"tailscale.com/types/netmap"
|
||
"tailscale.com/util/must"
|
||
"tailscale.com/wgengine"
|
||
"tailscale.com/wgengine/filter"
|
||
)
|
||
|
||
type peerAPITestEnv struct {
|
||
ph *peerAPIHandler
|
||
rr *httptest.ResponseRecorder
|
||
logBuf tstest.MemLogger
|
||
}
|
||
|
||
type check func(*testing.T, *peerAPITestEnv)
|
||
|
||
func checks(vv ...check) []check { return vv }
|
||
|
||
func httpStatus(wantStatus int) check {
|
||
return func(t *testing.T, e *peerAPITestEnv) {
|
||
if res := e.rr.Result(); res.StatusCode != wantStatus {
|
||
t.Errorf("HTTP response code = %v; want %v", res.Status, wantStatus)
|
||
}
|
||
}
|
||
}
|
||
|
||
func bodyContains(sub string) check {
|
||
return func(t *testing.T, e *peerAPITestEnv) {
|
||
if body := e.rr.Body.String(); !strings.Contains(body, sub) {
|
||
t.Errorf("HTTP response body does not contain %q; got: %s", sub, body)
|
||
}
|
||
}
|
||
}
|
||
|
||
func bodyNotContains(sub string) check {
|
||
return func(t *testing.T, e *peerAPITestEnv) {
|
||
if body := e.rr.Body.String(); strings.Contains(body, sub) {
|
||
t.Errorf("HTTP response body unexpectedly contains %q; got: %s", sub, body)
|
||
}
|
||
}
|
||
}
|
||
|
||
func fileHasSize(name string, size int) check {
|
||
return func(t *testing.T, e *peerAPITestEnv) {
|
||
root := e.ph.ps.taildrop.Dir()
|
||
if root == "" {
|
||
t.Errorf("no rootdir; can't check whether %q has size %v", name, size)
|
||
return
|
||
}
|
||
path := filepath.Join(root, name)
|
||
if fi, err := os.Stat(path); err != nil {
|
||
t.Errorf("fileHasSize(%q, %v): %v", name, size, err)
|
||
} else if fi.Size() != int64(size) {
|
||
t.Errorf("file %q has size %v; want %v", name, fi.Size(), size)
|
||
}
|
||
}
|
||
}
|
||
|
||
func fileHasContents(name string, want string) check {
|
||
return func(t *testing.T, e *peerAPITestEnv) {
|
||
root := e.ph.ps.taildrop.Dir()
|
||
if root == "" {
|
||
t.Errorf("no rootdir; can't check contents of %q", name)
|
||
return
|
||
}
|
||
path := filepath.Join(root, name)
|
||
got, err := os.ReadFile(path)
|
||
if err != nil {
|
||
t.Errorf("fileHasContents: %v", err)
|
||
return
|
||
}
|
||
if string(got) != want {
|
||
t.Errorf("file contents = %q; want %q", got, want)
|
||
}
|
||
}
|
||
}
|
||
|
||
func hexAll(v string) string {
|
||
var sb strings.Builder
|
||
for i := range len(v) {
|
||
fmt.Fprintf(&sb, "%%%02x", v[i])
|
||
}
|
||
return sb.String()
|
||
}
|
||
|
||
func TestHandlePeerAPI(t *testing.T) {
|
||
tests := []struct {
|
||
name string
|
||
isSelf bool // the peer sending the request is owned by us
|
||
capSharing bool // self node has file sharing capability
|
||
debugCap bool // self node has debug capability
|
||
omitRoot bool // don't configure
|
||
reqs []*http.Request
|
||
checks []check
|
||
}{
|
||
{
|
||
name: "not_peer_api",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("GET", "/", nil)},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
bodyContains("This is my Tailscale device."),
|
||
bodyContains("You are the owner of this node."),
|
||
),
|
||
},
|
||
{
|
||
name: "not_peer_api_not_owner",
|
||
isSelf: false,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("GET", "/", nil)},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
bodyContains("This is my Tailscale device."),
|
||
bodyNotContains("You are the owner of this node."),
|
||
),
|
||
},
|
||
{
|
||
name: "goroutines/deny-self-no-cap",
|
||
isSelf: true,
|
||
debugCap: false,
|
||
reqs: []*http.Request{httptest.NewRequest("GET", "/v0/goroutines", nil)},
|
||
checks: checks(httpStatus(403)),
|
||
},
|
||
{
|
||
name: "goroutines/deny-nonself",
|
||
isSelf: false,
|
||
debugCap: true,
|
||
reqs: []*http.Request{httptest.NewRequest("GET", "/v0/goroutines", nil)},
|
||
checks: checks(httpStatus(403)),
|
||
},
|
||
{
|
||
name: "goroutines/accept-self",
|
||
isSelf: true,
|
||
debugCap: true,
|
||
reqs: []*http.Request{httptest.NewRequest("GET", "/v0/goroutines", nil)},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
bodyContains("ServeHTTP"),
|
||
),
|
||
},
|
||
{
|
||
name: "reject_non_owner_put",
|
||
isSelf: false,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/foo", nil)},
|
||
checks: checks(
|
||
httpStatus(http.StatusForbidden),
|
||
bodyContains("Taildrop disabled"),
|
||
),
|
||
},
|
||
{
|
||
name: "owner_without_cap",
|
||
isSelf: true,
|
||
capSharing: false,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/foo", nil)},
|
||
checks: checks(
|
||
httpStatus(http.StatusForbidden),
|
||
bodyContains("Taildrop disabled"),
|
||
),
|
||
},
|
||
{
|
||
name: "owner_with_cap_no_rootdir",
|
||
omitRoot: true,
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/foo", nil)},
|
||
checks: checks(
|
||
httpStatus(http.StatusForbidden),
|
||
bodyContains("Taildrop disabled; no storage directory"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_method",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("POST", "/v0/put/foo", nil)},
|
||
checks: checks(
|
||
httpStatus(405),
|
||
bodyContains("expected method GET or PUT"),
|
||
),
|
||
},
|
||
{
|
||
name: "put_zero_length",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/foo", nil)},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
bodyContains("{}"),
|
||
fileHasSize("foo", 0),
|
||
fileHasContents("foo", ""),
|
||
),
|
||
},
|
||
{
|
||
name: "put_non_zero_length_content_length",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/foo", strings.NewReader("contents"))},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
bodyContains("{}"),
|
||
fileHasSize("foo", len("contents")),
|
||
fileHasContents("foo", "contents"),
|
||
),
|
||
},
|
||
{
|
||
name: "put_non_zero_length_chunked",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/foo", struct{ io.Reader }{strings.NewReader("contents")})},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
bodyContains("{}"),
|
||
fileHasSize("foo", len("contents")),
|
||
fileHasContents("foo", "contents"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_filename_partial",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/foo.partial", nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_filename_deleted",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/foo.deleted", nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_filename_dot",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/.", nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_filename_empty",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/", nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_filename_slash",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/foo/bar", nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_filename_encoded_dot",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/"+hexAll("."), nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_filename_encoded_slash",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/"+hexAll("/"), nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_filename_encoded_backslash",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/"+hexAll("\\"), nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_filename_encoded_dotdot",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/"+hexAll(".."), nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "bad_filename_encoded_dotdot_out",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/"+hexAll("foo/../../../../../etc/passwd"), nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "put_spaces_and_caps",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/"+hexAll("Foo Bar.dat"), strings.NewReader("baz"))},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
bodyContains("{}"),
|
||
fileHasContents("Foo Bar.dat", "baz"),
|
||
),
|
||
},
|
||
{
|
||
name: "put_unicode",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/"+hexAll("Томас и его друзья.mp3"), strings.NewReader("главный озорник"))},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
bodyContains("{}"),
|
||
fileHasContents("Томас и его друзья.mp3", "главный озорник"),
|
||
),
|
||
},
|
||
{
|
||
name: "put_invalid_utf8",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/"+(hexAll("😜")[:3]), nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "put_invalid_null",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/%00", nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "put_invalid_non_printable",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/%01", nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "put_invalid_colon",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/"+hexAll("nul:"), nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "put_invalid_surrounding_whitespace",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{httptest.NewRequest("PUT", "/v0/put/"+hexAll(" foo "), nil)},
|
||
checks: checks(
|
||
httpStatus(400),
|
||
bodyContains("invalid filename"),
|
||
),
|
||
},
|
||
{
|
||
name: "host-val/bad-ip",
|
||
isSelf: true,
|
||
debugCap: true,
|
||
reqs: []*http.Request{httptest.NewRequest("GET", "http://12.23.45.66:1234/v0/env", nil)},
|
||
checks: checks(
|
||
httpStatus(403),
|
||
),
|
||
},
|
||
{
|
||
name: "host-val/no-port",
|
||
isSelf: true,
|
||
debugCap: true,
|
||
reqs: []*http.Request{httptest.NewRequest("GET", "http://100.100.100.101/v0/env", nil)},
|
||
checks: checks(
|
||
httpStatus(403),
|
||
),
|
||
},
|
||
{
|
||
name: "host-val/peer",
|
||
isSelf: true,
|
||
debugCap: true,
|
||
reqs: []*http.Request{httptest.NewRequest("GET", "http://peer/v0/env", nil)},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
),
|
||
},
|
||
{
|
||
name: "duplicate_zero_length",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{
|
||
httptest.NewRequest("PUT", "/v0/put/foo", nil),
|
||
httptest.NewRequest("PUT", "/v0/put/foo", nil),
|
||
},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
func(t *testing.T, env *peerAPITestEnv) {
|
||
got, err := env.ph.ps.taildrop.WaitingFiles()
|
||
if err != nil {
|
||
t.Fatalf("WaitingFiles error: %v", err)
|
||
}
|
||
want := []apitype.WaitingFile{{Name: "foo", Size: 0}}
|
||
if diff := cmp.Diff(got, want); diff != "" {
|
||
t.Fatalf("WaitingFile mismatch (-got +want):\n%s", diff)
|
||
}
|
||
},
|
||
),
|
||
},
|
||
{
|
||
name: "duplicate_non_zero_length_content_length",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{
|
||
httptest.NewRequest("PUT", "/v0/put/foo", strings.NewReader("contents")),
|
||
httptest.NewRequest("PUT", "/v0/put/foo", strings.NewReader("contents")),
|
||
},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
func(t *testing.T, env *peerAPITestEnv) {
|
||
got, err := env.ph.ps.taildrop.WaitingFiles()
|
||
if err != nil {
|
||
t.Fatalf("WaitingFiles error: %v", err)
|
||
}
|
||
want := []apitype.WaitingFile{{Name: "foo", Size: 8}}
|
||
if diff := cmp.Diff(got, want); diff != "" {
|
||
t.Fatalf("WaitingFile mismatch (-got +want):\n%s", diff)
|
||
}
|
||
},
|
||
),
|
||
},
|
||
{
|
||
name: "duplicate_different_files",
|
||
isSelf: true,
|
||
capSharing: true,
|
||
reqs: []*http.Request{
|
||
httptest.NewRequest("PUT", "/v0/put/foo", strings.NewReader("fizz")),
|
||
httptest.NewRequest("PUT", "/v0/put/foo", strings.NewReader("buzz")),
|
||
},
|
||
checks: checks(
|
||
httpStatus(200),
|
||
func(t *testing.T, env *peerAPITestEnv) {
|
||
got, err := env.ph.ps.taildrop.WaitingFiles()
|
||
if err != nil {
|
||
t.Fatalf("WaitingFiles error: %v", err)
|
||
}
|
||
want := []apitype.WaitingFile{{Name: "foo", Size: 4}, {Name: "foo (1)", Size: 4}}
|
||
if diff := cmp.Diff(got, want); diff != "" {
|
||
t.Fatalf("WaitingFile mismatch (-got +want):\n%s", diff)
|
||
}
|
||
},
|
||
),
|
||
},
|
||
}
|
||
for _, tt := range tests {
|
||
t.Run(tt.name, func(t *testing.T) {
|
||
selfNode := &tailcfg.Node{
|
||
Addresses: []netip.Prefix{
|
||
netip.MustParsePrefix("100.100.100.101/32"),
|
||
},
|
||
}
|
||
if tt.debugCap {
|
||
selfNode.CapMap = tailcfg.NodeCapMap{tailcfg.CapabilityDebug: nil}
|
||
}
|
||
var e peerAPITestEnv
|
||
lb := &LocalBackend{
|
||
logf: e.logBuf.Logf,
|
||
capFileSharing: tt.capSharing,
|
||
netMap: &netmap.NetworkMap{SelfNode: selfNode.View()},
|
||
clock: &tstest.Clock{},
|
||
}
|
||
e.ph = &peerAPIHandler{
|
||
isSelf: tt.isSelf,
|
||
selfNode: selfNode.View(),
|
||
peerNode: (&tailcfg.Node{
|
||
ComputedName: "some-peer-name",
|
||
}).View(),
|
||
ps: &peerAPIServer{
|
||
b: lb,
|
||
},
|
||
}
|
||
var rootDir string
|
||
if !tt.omitRoot {
|
||
rootDir = t.TempDir()
|
||
if e.ph.ps.taildrop == nil {
|
||
e.ph.ps.taildrop = taildrop.ManagerOptions{
|
||
Logf: e.logBuf.Logf,
|
||
Dir: rootDir,
|
||
}.New()
|
||
}
|
||
}
|
||
for _, req := range tt.reqs {
|
||
e.rr = httptest.NewRecorder()
|
||
if req.Host == "example.com" {
|
||
req.Host = "100.100.100.101:12345"
|
||
}
|
||
e.ph.ServeHTTP(e.rr, req)
|
||
}
|
||
for _, f := range tt.checks {
|
||
f(t, &e)
|
||
}
|
||
if t.Failed() && rootDir != "" {
|
||
t.Logf("Contents of %s:", rootDir)
|
||
des, _ := fs.ReadDir(os.DirFS(rootDir), ".")
|
||
for _, de := range des {
|
||
fi, err := de.Info()
|
||
if err != nil {
|
||
t.Log(err)
|
||
} else {
|
||
t.Logf(" %v %5d %s", fi.Mode(), fi.Size(), de.Name())
|
||
}
|
||
}
|
||
}
|
||
})
|
||
}
|
||
}
|
||
|
||
// Windows likes to hold on to file descriptors for some indeterminate
|
||
// amount of time after you close them and not let you delete them for
|
||
// a bit. So test that we work around that sufficiently.
|
||
func TestFileDeleteRace(t *testing.T) {
|
||
dir := t.TempDir()
|
||
ps := &peerAPIServer{
|
||
b: &LocalBackend{
|
||
logf: t.Logf,
|
||
capFileSharing: true,
|
||
clock: &tstest.Clock{},
|
||
},
|
||
taildrop: taildrop.ManagerOptions{
|
||
Logf: t.Logf,
|
||
Dir: dir,
|
||
}.New(),
|
||
}
|
||
ph := &peerAPIHandler{
|
||
isSelf: true,
|
||
peerNode: (&tailcfg.Node{
|
||
ComputedName: "some-peer-name",
|
||
}).View(),
|
||
selfNode: (&tailcfg.Node{
|
||
Addresses: []netip.Prefix{netip.MustParsePrefix("100.100.100.101/32")},
|
||
}).View(),
|
||
ps: ps,
|
||
}
|
||
buf := make([]byte, 2<<20)
|
||
for range 30 {
|
||
rr := httptest.NewRecorder()
|
||
ph.ServeHTTP(rr, httptest.NewRequest("PUT", "http://100.100.100.101:123/v0/put/foo.txt", bytes.NewReader(buf[:rand.Intn(len(buf))])))
|
||
if res := rr.Result(); res.StatusCode != 200 {
|
||
t.Fatal(res.Status)
|
||
}
|
||
wfs, err := ps.taildrop.WaitingFiles()
|
||
if err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
if len(wfs) != 1 {
|
||
t.Fatalf("waiting files = %d; want 1", len(wfs))
|
||
}
|
||
|
||
if err := ps.taildrop.DeleteFile("foo.txt"); err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
wfs, err = ps.taildrop.WaitingFiles()
|
||
if err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
if len(wfs) != 0 {
|
||
t.Fatalf("waiting files = %d; want 0", len(wfs))
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestPeerAPIReplyToDNSQueries(t *testing.T) {
|
||
var h peerAPIHandler
|
||
|
||
h.isSelf = true
|
||
if !h.replyToDNSQueries() {
|
||
t.Errorf("for isSelf = false; want true")
|
||
}
|
||
h.isSelf = false
|
||
h.remoteAddr = netip.MustParseAddrPort("100.150.151.152:12345")
|
||
|
||
ht := new(health.Tracker)
|
||
eng, _ := wgengine.NewFakeUserspaceEngine(logger.Discard, 0, ht)
|
||
pm := must.Get(newProfileManager(new(mem.Store), t.Logf, ht))
|
||
h.ps = &peerAPIServer{
|
||
b: &LocalBackend{
|
||
e: eng,
|
||
pm: pm,
|
||
store: pm.Store(),
|
||
},
|
||
}
|
||
if h.ps.b.OfferingExitNode() {
|
||
t.Fatal("unexpectedly offering exit node")
|
||
}
|
||
h.ps.b.pm.SetPrefs((&ipn.Prefs{
|
||
AdvertiseRoutes: []netip.Prefix{
|
||
netip.MustParsePrefix("0.0.0.0/0"),
|
||
netip.MustParsePrefix("::/0"),
|
||
},
|
||
}).View(), ipn.NetworkProfile{})
|
||
if !h.ps.b.OfferingExitNode() {
|
||
t.Fatal("unexpectedly not offering exit node")
|
||
}
|
||
|
||
if h.replyToDNSQueries() {
|
||
t.Errorf("unexpectedly doing DNS without filter")
|
||
}
|
||
|
||
h.ps.b.setFilter(filter.NewAllowNone(logger.Discard, new(netipx.IPSet)))
|
||
if h.replyToDNSQueries() {
|
||
t.Errorf("unexpectedly doing DNS without filter")
|
||
}
|
||
|
||
f := filter.NewAllowAllForTest(logger.Discard)
|
||
|
||
h.ps.b.setFilter(f)
|
||
if !h.replyToDNSQueries() {
|
||
t.Errorf("unexpectedly deny; wanted to be a DNS server")
|
||
}
|
||
|
||
// Also test IPv6.
|
||
h.remoteAddr = netip.MustParseAddrPort("[fe70::1]:12345")
|
||
if !h.replyToDNSQueries() {
|
||
t.Errorf("unexpectedly IPv6 deny; wanted to be a DNS server")
|
||
}
|
||
}
|
||
|
||
func TestPeerAPIPrettyReplyCNAME(t *testing.T) {
|
||
for _, shouldStore := range []bool{false, true} {
|
||
var h peerAPIHandler
|
||
h.remoteAddr = netip.MustParseAddrPort("100.150.151.152:12345")
|
||
|
||
ht := new(health.Tracker)
|
||
eng, _ := wgengine.NewFakeUserspaceEngine(logger.Discard, 0, ht)
|
||
pm := must.Get(newProfileManager(new(mem.Store), t.Logf, ht))
|
||
var a *appc.AppConnector
|
||
if shouldStore {
|
||
a = appc.NewAppConnector(t.Logf, &appctest.RouteCollector{}, &appc.RouteInfo{}, fakeStoreRoutes)
|
||
} else {
|
||
a = appc.NewAppConnector(t.Logf, &appctest.RouteCollector{}, nil, nil)
|
||
}
|
||
h.ps = &peerAPIServer{
|
||
b: &LocalBackend{
|
||
e: eng,
|
||
pm: pm,
|
||
store: pm.Store(),
|
||
// configure as an app connector just to enable the API.
|
||
appConnector: a,
|
||
},
|
||
}
|
||
|
||
h.ps.resolver = &fakeResolver{build: func(b *dnsmessage.Builder) {
|
||
b.CNAMEResource(
|
||
dnsmessage.ResourceHeader{
|
||
Name: dnsmessage.MustNewName("www.example.com."),
|
||
Type: dnsmessage.TypeCNAME,
|
||
Class: dnsmessage.ClassINET,
|
||
TTL: 0,
|
||
},
|
||
dnsmessage.CNAMEResource{
|
||
CNAME: dnsmessage.MustNewName("example.com."),
|
||
},
|
||
)
|
||
b.AResource(
|
||
dnsmessage.ResourceHeader{
|
||
Name: dnsmessage.MustNewName("example.com."),
|
||
Type: dnsmessage.TypeA,
|
||
Class: dnsmessage.ClassINET,
|
||
TTL: 0,
|
||
},
|
||
dnsmessage.AResource{
|
||
A: [4]byte{192, 0, 0, 8},
|
||
},
|
||
)
|
||
}}
|
||
f := filter.NewAllowAllForTest(logger.Discard)
|
||
h.ps.b.setFilter(f)
|
||
|
||
if !h.replyToDNSQueries() {
|
||
t.Errorf("unexpectedly deny; wanted to be a DNS server")
|
||
}
|
||
|
||
w := httptest.NewRecorder()
|
||
h.handleDNSQuery(w, httptest.NewRequest("GET", "/dns-query?q=www.example.com.", nil))
|
||
if w.Code != http.StatusOK {
|
||
t.Errorf("unexpected status code: %v", w.Code)
|
||
}
|
||
var addrs []string
|
||
json.NewDecoder(w.Body).Decode(&addrs)
|
||
if len(addrs) == 0 {
|
||
t.Fatalf("no addresses returned")
|
||
}
|
||
for _, addr := range addrs {
|
||
netip.MustParseAddr(addr)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestPeerAPIReplyToDNSQueriesAreObserved(t *testing.T) {
|
||
for _, shouldStore := range []bool{false, true} {
|
||
ctx := context.Background()
|
||
var h peerAPIHandler
|
||
h.remoteAddr = netip.MustParseAddrPort("100.150.151.152:12345")
|
||
|
||
rc := &appctest.RouteCollector{}
|
||
ht := new(health.Tracker)
|
||
eng, _ := wgengine.NewFakeUserspaceEngine(logger.Discard, 0, ht)
|
||
pm := must.Get(newProfileManager(new(mem.Store), t.Logf, ht))
|
||
var a *appc.AppConnector
|
||
if shouldStore {
|
||
a = appc.NewAppConnector(t.Logf, rc, &appc.RouteInfo{}, fakeStoreRoutes)
|
||
} else {
|
||
a = appc.NewAppConnector(t.Logf, rc, nil, nil)
|
||
}
|
||
h.ps = &peerAPIServer{
|
||
b: &LocalBackend{
|
||
e: eng,
|
||
pm: pm,
|
||
store: pm.Store(),
|
||
appConnector: a,
|
||
},
|
||
}
|
||
h.ps.b.appConnector.UpdateDomains([]string{"example.com"})
|
||
h.ps.b.appConnector.Wait(ctx)
|
||
|
||
h.ps.resolver = &fakeResolver{build: func(b *dnsmessage.Builder) {
|
||
b.AResource(
|
||
dnsmessage.ResourceHeader{
|
||
Name: dnsmessage.MustNewName("example.com."),
|
||
Type: dnsmessage.TypeA,
|
||
Class: dnsmessage.ClassINET,
|
||
TTL: 0,
|
||
},
|
||
dnsmessage.AResource{
|
||
A: [4]byte{192, 0, 0, 8},
|
||
},
|
||
)
|
||
}}
|
||
f := filter.NewAllowAllForTest(logger.Discard)
|
||
h.ps.b.setFilter(f)
|
||
|
||
if !h.ps.b.OfferingAppConnector() {
|
||
t.Fatal("expecting to be offering app connector")
|
||
}
|
||
if !h.replyToDNSQueries() {
|
||
t.Errorf("unexpectedly deny; wanted to be a DNS server")
|
||
}
|
||
|
||
w := httptest.NewRecorder()
|
||
h.handleDNSQuery(w, httptest.NewRequest("GET", "/dns-query?q=example.com.", nil))
|
||
if w.Code != http.StatusOK {
|
||
t.Errorf("unexpected status code: %v", w.Code)
|
||
}
|
||
h.ps.b.appConnector.Wait(ctx)
|
||
|
||
wantRoutes := []netip.Prefix{netip.MustParsePrefix("192.0.0.8/32")}
|
||
if !slices.Equal(rc.Routes(), wantRoutes) {
|
||
t.Errorf("got %v; want %v", rc.Routes(), wantRoutes)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestPeerAPIReplyToDNSQueriesAreObservedWithCNAMEFlattening(t *testing.T) {
|
||
for _, shouldStore := range []bool{false, true} {
|
||
ctx := context.Background()
|
||
var h peerAPIHandler
|
||
h.remoteAddr = netip.MustParseAddrPort("100.150.151.152:12345")
|
||
|
||
ht := new(health.Tracker)
|
||
rc := &appctest.RouteCollector{}
|
||
eng, _ := wgengine.NewFakeUserspaceEngine(logger.Discard, 0, ht)
|
||
pm := must.Get(newProfileManager(new(mem.Store), t.Logf, ht))
|
||
var a *appc.AppConnector
|
||
if shouldStore {
|
||
a = appc.NewAppConnector(t.Logf, rc, &appc.RouteInfo{}, fakeStoreRoutes)
|
||
} else {
|
||
a = appc.NewAppConnector(t.Logf, rc, nil, nil)
|
||
}
|
||
h.ps = &peerAPIServer{
|
||
b: &LocalBackend{
|
||
e: eng,
|
||
pm: pm,
|
||
store: pm.Store(),
|
||
appConnector: a,
|
||
},
|
||
}
|
||
h.ps.b.appConnector.UpdateDomains([]string{"www.example.com"})
|
||
h.ps.b.appConnector.Wait(ctx)
|
||
|
||
h.ps.resolver = &fakeResolver{build: func(b *dnsmessage.Builder) {
|
||
b.CNAMEResource(
|
||
dnsmessage.ResourceHeader{
|
||
Name: dnsmessage.MustNewName("www.example.com."),
|
||
Type: dnsmessage.TypeCNAME,
|
||
Class: dnsmessage.ClassINET,
|
||
TTL: 0,
|
||
},
|
||
dnsmessage.CNAMEResource{
|
||
CNAME: dnsmessage.MustNewName("example.com."),
|
||
},
|
||
)
|
||
b.AResource(
|
||
dnsmessage.ResourceHeader{
|
||
Name: dnsmessage.MustNewName("example.com."),
|
||
Type: dnsmessage.TypeA,
|
||
Class: dnsmessage.ClassINET,
|
||
TTL: 0,
|
||
},
|
||
dnsmessage.AResource{
|
||
A: [4]byte{192, 0, 0, 8},
|
||
},
|
||
)
|
||
}}
|
||
f := filter.NewAllowAllForTest(logger.Discard)
|
||
h.ps.b.setFilter(f)
|
||
|
||
if !h.ps.b.OfferingAppConnector() {
|
||
t.Fatal("expecting to be offering app connector")
|
||
}
|
||
if !h.replyToDNSQueries() {
|
||
t.Errorf("unexpectedly deny; wanted to be a DNS server")
|
||
}
|
||
|
||
w := httptest.NewRecorder()
|
||
h.handleDNSQuery(w, httptest.NewRequest("GET", "/dns-query?q=www.example.com.", nil))
|
||
if w.Code != http.StatusOK {
|
||
t.Errorf("unexpected status code: %v", w.Code)
|
||
}
|
||
h.ps.b.appConnector.Wait(ctx)
|
||
|
||
wantRoutes := []netip.Prefix{netip.MustParsePrefix("192.0.0.8/32")}
|
||
if !slices.Equal(rc.Routes(), wantRoutes) {
|
||
t.Errorf("got %v; want %v", rc.Routes(), wantRoutes)
|
||
}
|
||
}
|
||
}
|
||
|
||
type fakeResolver struct {
|
||
build func(*dnsmessage.Builder)
|
||
}
|
||
|
||
func (f *fakeResolver) HandlePeerDNSQuery(ctx context.Context, q []byte, from netip.AddrPort, allowName func(name string) bool) (res []byte, err error) {
|
||
b := dnsmessage.NewBuilder(nil, dnsmessage.Header{})
|
||
b.EnableCompression()
|
||
b.StartAnswers()
|
||
f.build(&b)
|
||
return b.Finish()
|
||
}
|