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ipn/ipnlocal: add a LocalBackend.Start fast path if already running

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Updates tailscale/corp#1621

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2021-04-23 10:26:25 -07:00
committed by Brad Fitzpatrick
parent ad1a595a75
commit fe53a714bd
2 changed files with 53 additions and 13 deletions
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26
ipn/backend.go
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@ -55,17 +55,21 @@ type EngineStatus struct {
// that they have not changed.
// They are JSON-encoded on the wire, despite the lack of struct tags.
type Notify struct {
_ structs.Incomparable
Version string // version number of IPN backend
ErrMessage *string // critical error message, if any; for InUseOtherUser, the details
LoginFinished *empty.Message // event: non-nil when login process succeeded
State *State // current IPN state has changed
Prefs *Prefs // preferences were changed
NetMap *netmap.NetworkMap // new netmap received
Engine *EngineStatus // wireguard engine stats
BrowseToURL *string // UI should open a browser right now
BackendLogID *string // public logtail id used by backend
PingResult *ipnstate.PingResult
_ structs.Incomparable
Version string // version number of IPN backend
// ErrMessage, if non-nil, contains a critical error message.
// For State InUseOtherUser, ErrMessage is not critical and just contains the details.
ErrMessage *string
LoginFinished *empty.Message // non-nil when/if the login process succeeded
State *State // if non-nil, the new or current IPN state
Prefs *Prefs // if non-nil, the new or current preferences
NetMap *netmap.NetworkMap // if non-nil, the new or current netmap
Engine *EngineStatus // if non-nil, the new or urrent wireguard stats
BrowseToURL *string // if non-nil, UI should open a browser right now
BackendLogID *string // if non-nil, the public logtail ID used by backend
PingResult *ipnstate.PingResult // if non-nil, a ping response arrived
// FilesWaiting if non-nil means that files are buffered in
// the Tailscale daemon and ready for local transfer to the