Date: Tue, 14 Nov 2017 10:52:55 +0100 From: Harry Schmalzbauer <freebsd@omnilan.de> To: freebsd-net@freebsd.org Subject: userland shutdown(2)? Message-ID: <5A0ABCF7.6080606@omnilan.de>
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Hello, stoping jails leaves open sockets with no process attached. (sockstat shows like this line: ? ? ? ? tcp6 2001:db8::fedc:389 2001:db8::abcd:15666 ) Since I make use of mount lines in jail.conf, umounting the root filesystem of the jail fails because "device busy". To avoid dirty filesystems after reboot of the host, my modified rc.d/jail updates the corresponding filesystem to be mounted readonly, but that's not a great solution. I'd like to get all sockets killed before jail vanishes. There's shutdown(2), which seems to do exactly what I want, but where/how to implement? Is there any userland tool utilizing shutdown(2)? Thanks, -Harry
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