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tailscaled: revert to using pointers for subcommands 

As part of #10631, we stopped using function pointers for subcommands,
preventing us from registering platform-specific installSystemDaemon
and uninstallSystemDaemon subcommands.

Fixes #11099

Signed-off-by: Percy Wegmann <percy@tailscale.com>
This commit is contained in:
Percy Wegmann 2024-02-10 11:32:25 -06:00 committed by Percy Wegmann
parent 87154a2f88
commit 55b372a79f
1 changed files with 17 additions and 9 deletions
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26
cmd/tailscaled/tailscaled.go
View File

@ -136,12 +136,16 @@ var (
createBIRDClient func(string) (wgengine.BIRDClient, error) // non-nil on some platforms
)
var subCommands = map[string]func([]string) error{
"install-system-daemon": installSystemDaemon,
"uninstall-system-daemon": uninstallSystemDaemon,
"debug": debugModeFunc,
"be-child": beChild,
"serve-tailfs": serveTailFS,
// Note - we use function pointers for subcommands so that subcommands like
// installSystemDaemon and uninstallSystemDaemon can be assigned platform-
// specific variants.
var subCommands = map[string]*func([]string) error{
"install-system-daemon": &installSystemDaemon,
"uninstall-system-daemon": &uninstallSystemDaemon,
"debug": &debugModeFunc,
"be-child": &beChildFunc,
"serve-tailfs": &serveTailFSFunc,
}
var beCLI func() // non-nil if CLI is linked in
@ -173,12 +177,12 @@ func main() {
if len(os.Args) > 1 {
sub := os.Args[1]
if fn, ok := subCommands[sub]; ok {
if fn == nil {
if fp, ok := subCommands[sub]; ok {
if fp == nil {
log.SetFlags(0)
log.Fatalf("%s not available on %v", sub, runtime.GOOS)
}
if err := fn(os.Args[2:]); err != nil {
if err := (*fp)(os.Args[2:]); err != nil {
log.SetFlags(0)
log.Fatal(err)
}
@ -799,6 +803,8 @@ func mustStartProxyListeners(socksAddr, httpAddr string) (socksListener, httpLis
return socksListener, httpListener
}
var beChildFunc = beChild
func beChild(args []string) error {
if len(args) == 0 {
return errors.New("missing mode argument")
@ -811,6 +817,8 @@ func beChild(args []string) error {
return f(args[1:])
}
var serveTailFSFunc = serveTailFS
// serveTailFS serves one or more tailfs on localhost using the WebDAV
// protocol. On UNIX and MacOS tailscaled environment, tailfs spawns child
// tailscaled processes in serve-tailfs mode in order to access the fliesystem