MFp4:

  Bring in updated jail support from bz_jail branch.

This enhances the current jail implementation to permit multiple
addresses per jail. In addtion to IPv4, IPv6 is supported as well.
Due to updated checks it is even possible to have jails without
an IP address at all, which basically gives one a chroot with
restricted process view, no networking,..

SCTP support was updated and supports IPv6 in jails as well.

Cpuset support permits jails to be bound to specific processor
sets after creation.

Jails can have an unrestricted (no duplicate protection, etc.) name
in addition to the hostname. The jail name cannot be changed from
within a jail and is considered to be used for management purposes
or as audit-token in the future.

DDB 'show jails' command was added to aid debugging.

Proper compat support permits 32bit jail binaries to be used on 64bit
systems to manage jails. Also backward compatibility was preserved where
possible: for jail v1 syscalls, as well as with user space management
utilities.

Both jail as well as prison version were updated for the new features.
A gap was intentionally left as the intermediate versions had been
used by various patches floating around the last years.

Bump __FreeBSD_version for the afore mentioned and in kernel changes.

Special thanks to:
- Pawel Jakub Dawidek (pjd) for his multi-IPv4 patches
  and Olivier Houchard (cognet) for initial single-IPv6 patches.
- Jeff Roberson (jeff) and Randall Stewart (rrs) for their
  help, ideas and review on cpuset and SCTP support.
- Robert Watson (rwatson) for lots and lots of help, discussions,
  suggestions and review of most of the patch at various stages.
- John Baldwin (jhb) for his help.
- Simon L. Nielsen (simon) as early adopter testing changes
  on cluster machines as well as all the testers and people
  who provided feedback the last months on freebsd-jail and
  other channels.
- My employer, CK Software GmbH, for the support so I could work on this.

Reviewed by:	(see above)
MFC after:	3 months (this is just so that I get the mail)
X-MFC Before:   7.2-RELEASE if possible

1 files changed, 29 insertions, 5 deletions

diff --git a/usr.sbin/jls/jls.8 b/usr.sbin/jls/jls.8
index 4dc68c7..aff9848 100644
--- a/usr.sbin/jls/jls.8
+++ b/usr.sbin/jls/jls.8
@@ -25,20 +25,44 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd April 8, 2003
+.Dd November 29, 2008
 .Dt JLS 8
 .Os
 .Sh NAME
 .Nm jls
-.Nd "list active jails"
+.Nd "list jails"
 .Sh SYNOPSIS
 .Nm
+.Op Fl av
 .Sh DESCRIPTION
 The
 .Nm
-utility lists all active jails.
-Each jail is represented by one row which contains the following columns:
-jail identifier (JID), IP address, hostname, and path.
+utility lists all jails.
+By default only active jails are listed.
+.Pp
+The options are as follows:
+.Bl -tag -width ".Fl a"
+.It Fl a
+Show jails in all states, not only active ones.
+.It Fl v
+Show more verbose information.
+This also lists cpusets, jail state, multi-IP, etc. instead of the
+classic single-IP jail output.
+.El
+.Pp
+Each jail is represented by rows which, depending on
+.Fl v ,
+contain the following columns:
+.Bl -item -offset indent -compact
+.It
+jail identifier (JID), hostname and path
+.It
+jail state and name
+.It
+jail cpuset
+.It
+followed by one IP adddress per line.
+.El
 .Sh SEE ALSO
 .Xr jail 2 ,
 .Xr jail 8 ,