Date: Fri, 16 Nov 2018 23:25:27 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 233262] security.jail.param.children sysctls don't display correctly Message-ID: <bug-233262-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233262 Bug ID: 233262 Summary: security.jail.param.children sysctls don't display correctly Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: asomers@FreeBSD.org The children.max jail parameter is supposed to show the maximum number of child jails allows by a jail, when using hierarchical jails. From experiment, this parameter seems to work, but it's always displayed as 0. The children.current parameter is supposed to be a read-only sysctl displaying the current number of children. However it, too, always displays 0. The jls command can correctly display these parameters for child jails, but I don't see any way to get them from within a jail. Steps to reproduce: [somers@fbsd12 ~]$ sudo jail -c name=foo host.hostname=foo children.max=99 persist [somers@fbsd12 ~]$ jls -h jid name children.max children.cur jid name children.max children.cur 7 foo 99 0 [somers@fbsd12 ~]$ sudo jexec foo /bin/sh # sysctl security.jail.param.children security.jail.param.children.max: 0 security.jail.param.children.cur: 0 # jail -c name=bar host.hostname=bar persist # sysctl security.jail.param.children security.jail.param.children.max: 0 security.jail.param.children.cur: 0 # exit [somers@fbsd12 ~]$ jls -h jid name children.max children.cur jid name children.max children.cur 7 foo 99 1 8 foo.bar 0 0 Tested on 12.0-BETA4 and 12.0-CURRENT as of r340301. -- You are receiving this mail because: You are the assignee for the bug.help
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