cwinfo/yggdrasil-go
5
0
Fork 0
mirror of https://github.com/cwinfo/yggdrasil-go.git synced 2024-11-24 21:51:35 +00:00
Code Releases Activity

Use SO_REUSEADDR instead of SO_REUSEPORT on Linux

Browse Source
This commit is contained in:
Neil Alexander 2022-10-22 14:56:29 +01:00
parent c55611a478
commit 0a1a155e66
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/multicast/multicast_unix.go
View File

@ -15,15 +15,19 @@ func (m *Multicast) _multicastStarted() {
func (m *Multicast) multicastReuse(network string, address string, c syscall.RawConn) error { func (m *Multicast) multicastReuse(network string, address string, c syscall.RawConn) error {
var control error var control error
var reuseport error var reuseaddr error
control = c.Control(func(fd uintptr) { control = c.Control(func(fd uintptr) {
reuseport = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1) // Previously we used SO_REUSEPORT here, but that meant that machines running
// Yggdrasil nodes as different users would inevitably fail with EADDRINUSE.
// The behaviour for multicast is similar with both, so we'll use SO_REUSEADDR
// instead.
reuseaddr = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEADDR, 1)
}) })
switch { switch {
case reuseport != nil: case reuseaddr != nil:
return reuseport return reuseaddr
default: default:
return control return control
} }