Date: Wed, 07 Jun 2017 07:04:34 -0400 From: Allan Jude <allanjude@FreeBSD.org> To: Alexander Leidinger <Alexander@leidinger.net> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r319611 - in head: sys/kern sys/sys usr.sbin/jail Message-ID: <6949814E-4CA8-42AC-A4D4-8FE3680E3051@FreeBSD.org> In-Reply-To: <20170607102033.Horde.fNxJ0jaYva0yGHTMA77wPTz@webmail.leidinger.net> References: <20170607102033.Horde.fNxJ0jaYva0yGHTMA77wPTz@webmail.leidinger.net>
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On June 7, 2017 4:20:33 AM EDT, Alexander Leidinger <Alexander@leidinger=2E= net> wrote: > >Quoting Allan Jude <allanjude@freebsd=2Eorg> (from Tue, 6 Jun 2017 =20 >02:15:01 +0000 (UTC)): > >> Author: allanjude >> Date: Tue Jun 6 02:15:00 2017 >> New Revision: 319611 >> URL: https://svnweb=2Efreebsd=2Eorg/changeset/base/319611 >> >> Log: >> Jails: Optionally prevent jailed root from binding to privileged >ports >> >> You may now optionally specify allow=2Enoreserved_ports to prevent >root >> inside a jail from using privileged ports (less than 1024) > >What about a different name than "noreserved_ports"? This is very =20 >close to "nonreserverd_ports", and as such it's easy to get wrong the =20 >first time=2E IMO "block_reserved_ports" and "noblock_reserved_ports" =20 >(or another similar explicit wording) is less likely to get =20 >misunderstood (please take potential lack of language learning skills =20 >into account=2E=2E=2E)=2E > >> Modified: head/sys/kern/kern_jail=2Ec >> >=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D >> --- head/sys/kern/kern_jail=2Ec Tue Jun 6 02:03:22 2017 (r319610) >> +++ head/sys/kern/kern_jail=2Ec Tue Jun 6 02:15:00 2017 (r319611) >> @@ -199,6 +199,7 @@ static char *pr_allow_names[] =3D { >> "allow=2Emount=2Efdescfs", >> "allow=2Emount=2Elinprocfs", >> "allow=2Emount=2Elinsysfs", >> + "allow=2Ereserved_ports", >> }; >> const size_t pr_allow_names_size =3D sizeof(pr_allow_names); >> >> @@ -218,10 +219,11 @@ static char *pr_allow_nonames[] =3D { >> "allow=2Emount=2Enofdescfs", >> "allow=2Emount=2Enolinprocfs", >> "allow=2Emount=2Enolinsysfs", >> + "allow=2Enoreserved_ports", > >Bye, >Alexander=2E The option name is reserved_ports which allows root to bind to the ports= =2E As with all jail options, the no prefix disables it=2E This feature is = on by default for backwards compatibility=2E --=20 Allan Jude
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