mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-30 05:25:35 +00:00
b9adbe2002
In prep for most of the package funcs in net/interfaces to become methods in a long-lived netmon.Monitor that can cache things. (Many of the funcs are very heavy to call regularly, whereas the long-lived netmon.Monitor can subscribe to things from the OS and remember answers to questions it's asked regularly later) Updates tailscale/corp#10910 Updates tailscale/corp#18960 Updates #7967 Updates #3299 Change-Id: Ie4e8dedb70136af2d611b990b865a822cd1797e5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
85 lines
1.7 KiB
Go
85 lines
1.7 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package netns
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"tailscale.com/net/netmon"
|
|
)
|
|
|
|
func TestGetInterfaceIndex(t *testing.T) {
|
|
oldVal := bindToInterfaceByRoute.Load()
|
|
t.Cleanup(func() { bindToInterfaceByRoute.Store(oldVal) })
|
|
bindToInterfaceByRoute.Store(true)
|
|
|
|
tests := []struct {
|
|
name string
|
|
addr string
|
|
err string
|
|
}{
|
|
{
|
|
name: "IP_and_port",
|
|
addr: "8.8.8.8:53",
|
|
},
|
|
{
|
|
name: "bare_ip",
|
|
addr: "8.8.8.8",
|
|
},
|
|
{
|
|
name: "invalid",
|
|
addr: "!!!!!",
|
|
},
|
|
}
|
|
for _, tc := range tests {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
idx, err := getInterfaceIndex(t.Logf, nil, tc.addr)
|
|
if err != nil {
|
|
if tc.err == "" {
|
|
t.Fatalf("got unexpected error: %v", err)
|
|
}
|
|
if errstr := err.Error(); errstr != tc.err {
|
|
t.Errorf("expected error %q, got %q", errstr, tc.err)
|
|
}
|
|
} else {
|
|
t.Logf("getInterfaceIndex(%q) = %d", tc.addr, idx)
|
|
if tc.err != "" {
|
|
t.Fatalf("wanted error %q", tc.err)
|
|
}
|
|
if idx < 0 {
|
|
t.Fatalf("got invalid index %d", idx)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
t.Run("NoTailscale", func(t *testing.T) {
|
|
tsif, err := tailscaleInterface()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if tsif == nil {
|
|
t.Skip("no tailscale interface on this machine")
|
|
}
|
|
|
|
defaultIdx, err := netmon.DefaultRouteInterfaceIndex()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
idx, err := getInterfaceIndex(t.Logf, nil, "100.100.100.100:53")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
t.Logf("tailscaleIdx=%d defaultIdx=%d idx=%d", tsif.Index, defaultIdx, idx)
|
|
|
|
if idx == tsif.Index {
|
|
t.Fatalf("got idx=%d; wanted not Tailscale interface", idx)
|
|
} else if idx != defaultIdx {
|
|
t.Fatalf("got idx=%d, want %d", idx, defaultIdx)
|
|
}
|
|
})
|
|
}
|