TheArchive/tailscale
1
0
Fork 0
mirror of https://github.com/tailscale/tailscale.git synced 2024-11-25 11:05:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

wgengine/magicsock: fix the freshness of endpoints in callmemaybe

Browse Source 
Endpoint storage and state updates are all over the place so the full
story is hard to track, but explicitly callmemaybe is executed by a
callback that is triggered before the write of new endpoints into the
storage that CallMeMaybe sends read from. This is now reordered, so that
CallMeMaybe should always observe the most recent endpoints.

Signed-off-by: James Tucker <james@tailscale.com>
This commit is contained in:
James Tucker 2024-08-08 11:02:30 -07:00
parent 1ed958fe23
commit 0ce86e813a
No known key found for this signature in database
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
wgengine/magicsock/magicsock.go
View File

@ -634,16 +634,17 @@ func (c *Conn) setEndpoints(endpoints []tailcfg.Endpoint) (changed bool) {
}
c.lastEndpointsTime = time.Now()
if !endpointSetsEqual(endpoints, c.lastEndpoints) {
changed = true
}
// lastEndpoints must be updated before onEndpointsRefreshed,
// as CallMyMaybe sent via this callback must observe the new endpoints.
c.lastEndpoints = endpoints
for de, fn := range c.onEndpointRefreshed {
go fn()
delete(c.onEndpointRefreshed, de)
}
if endpointSetsEqual(endpoints, c.lastEndpoints) {
return false
}
c.lastEndpoints = endpoints
return true
return changed
}
// SetStaticEndpoints sets static endpoints to the provided value and triggers