[PATCH] SO_REUSEADDR and SO_REUSEPORT behaviour

[Ermal Luçi]

Hello,

since SO_REUSEADDR and SO_REUSEPORT are supposed to allow two daemons to
share the same port and possibly listening ip, you would expect if you bind
two daemon with such options to same port to see the same traffic on both!

This is not the case today.
Only multicast sockets seem to have the behaviour of broadcasting the data
to all sockets sharing the same properties through these options!

The patch at [1] implements/corrects the behaviour for UDP sockets.
Is there anything to be corrected in that patch?
Why it has not been provided there before?
Can it be committed to the tree?
Any extra security checks for jails needed there?


[1]
https://github.com/pfsense/pfsense-tools/blob/master/patches/RELENG_10_0/udp_SO_REUSEADDR%2BPORT.diff

-- 
Ermal