TheArchive/tailscale
1
0
Fork 0
mirror of https://github.com/tailscale/tailscale.git synced 2025-08-11 13:18:53 +00:00
Code Issues Packages Projects Releases Wiki Activity

ipn: remove unused Options.LegacyMigrationPrefs

Browse Source 
I'm on a mission to simplify LocalBackend.Start and its locking
and deflake some tests.

I noticed this hasn't been used since March 2023 when it was removed
from the Windows client in corp 66be796d33c.

So, delete.

Updates #11649

Change-Id: I40f2cb75fb3f43baf23558007655f65a8ec5e1b2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2024-04-15 21:40:21 -07:00
committed by Brad Fitzpatrick
parent 7ec0dc3834
commit dd6c76ea24
3 changed files with 16 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files

53
ipn/ipnlocal/local.go
View File

@@ -1623,7 +1623,6 @@ func (b *LocalBackend) startIsNoopLocked(opts ipn.Options) bool {
return b.state == ipn.Running &&
b.hostinfo != nil &&
b.hostinfo.FrontendLogID == opts.FrontendLogID &&
opts.LegacyMigrationPrefs == nil &&
opts.UpdatePrefs == nil &&
opts.AuthKey == ""
}
@@ -1639,28 +1638,15 @@ func (b *LocalBackend) startIsNoopLocked(opts ipn.Options) bool {
// actually a supported operation (it should be, but it's very unclear
// from the following whether or not that is a safe transition).
func (b *LocalBackend) Start(opts ipn.Options) error {
if opts.LegacyMigrationPrefs != nil {
b.logf("Start: %v", opts.LegacyMigrationPrefs.Pretty())
} else {
b.logf("Start")
}
b.logf("Start")
b.mu.Lock()
if opts.LegacyMigrationPrefs == nil && !b.pm.CurrentPrefs().Valid() {
b.mu.Unlock()
return errors.New("no prefs provided")
}
if opts.UpdatePrefs != nil {
if err := b.checkPrefsLocked(opts.UpdatePrefs); err != nil {
b.mu.Unlock()
return err
}
} else if opts.LegacyMigrationPrefs != nil {
if err := b.checkPrefsLocked(opts.LegacyMigrationPrefs); err != nil {
b.mu.Unlock()
return err
}
}
profileID := b.pm.CurrentProfile().ID
if b.state != ipn.Running && b.conf != nil && b.conf.Parsed.AuthKey != nil && opts.AuthKey == "" {
@@ -1720,11 +1706,6 @@ func (b *LocalBackend) Start(opts ipn.Options) error {
b.hostinfo = hostinfo
b.state = ipn.NoState
if err := b.migrateStateLocked(opts.LegacyMigrationPrefs); err != nil {
b.mu.Unlock()
return fmt.Errorf("loading requested state: %v", err)
}
if opts.UpdatePrefs != nil {
oldPrefs := b.pm.CurrentPrefs()
newPrefs := opts.UpdatePrefs.Clone()
@@ -1737,6 +1718,8 @@ func (b *LocalBackend) Start(opts ipn.Options) error {
b.logf("failed to save UpdatePrefs state: %v", err)
}
b.setAtomicValuesFromPrefsLocked(pv)
} else {
b.setAtomicValuesFromPrefsLocked(b.pm.CurrentPrefs())
}
prefs := b.pm.CurrentPrefs()
@@ -1799,9 +1782,9 @@ func (b *LocalBackend) Start(opts ipn.Options) error {
}
// TODO(apenwarr): The only way to change the ServerURL is to
// re-run b.Start(), because this is the only place we create a
// new controlclient. SetPrefs() allows you to overwrite ServerURL,
// but it won't take effect until the next Start().
// re-run b.Start, because this is the only place we create a
// new controlclient. EditPrefs allows you to overwrite ServerURL,
// but it won't take effect until the next Start.
cc, err := b.getNewControlClientFunc()(controlclient.Options{
GetMachinePrivateKey: b.createGetMachinePrivateKeyFunc(),
Logf: logger.WithPrefix(b.logf, "control: "),
@@ -2681,30 +2664,6 @@ func (b *LocalBackend) clearMachineKeyLocked() error {
return nil
}
// migrateStateLocked migrates state from the frontend to the backend.
// It is a no-op if prefs is nil
// b.mu must be held.
func (b *LocalBackend) migrateStateLocked(prefs *ipn.Prefs) (err error) {
if prefs == nil && !b.pm.CurrentPrefs().Valid() {
return fmt.Errorf("no prefs provided and no current profile")
}
if prefs != nil {
// Backend owns the state, but frontend is trying to migrate
// state into the backend.
b.logf("importing frontend prefs into backend store; frontend prefs: %s", prefs.Pretty())
if err := b.pm.SetPrefs(prefs.View(), ipn.NetworkProfile{
MagicDNSName: b.netMap.MagicDNSSuffix(),
DomainName: b.netMap.DomainName(),
}); err != nil {
return fmt.Errorf("store.WriteState: %v", err)
}
}
b.setAtomicValuesFromPrefsLocked(b.pm.CurrentPrefs())
return nil
}
// setTCPPortsIntercepted populates b.shouldInterceptTCPPortAtomic with an
// efficient func for ShouldInterceptTCPPort to use, which is called on every
// incoming packet.