A. Introduction

This document amends the Zones Project (PSARC 2002/174) device matching
interfaces, based on a mutually agreed decision between the Zones I-Team
and the I/O organization.  This case removes some interfaces
documented in the Zones Project case.  The simplification allows user
interface changes which make the device matching easier to use.

This case seeks the same binding as PSARC 2002/174 (minor release), and
will be delivered concurrently with the Zones integration.

B. Device Matching Rule Types

PSARC 2002/174 documents three kinds of device matching rules which
can be used to describe the set of devices which should appear in a
particular zone.  The case says:

      Device Path (devpath): This is expected to be the most common way
        to specify a device. The candidate device's global zone /dev
        pathname is tested against the match property using fnmatch(3C).

      Driver Name (driver): The driver name of the candidate device for
        the zone is tested against the match property.

      Driver Name & Minor Name (drv_min): Both the driver name and minor
        name of the candidate device are compared to the match property,
        which is expected to be in the format drivername:minorname.

The I/O group has provided the guidance that the only customer-facing
interface for matching devices should be the /dev pathname.
Accordingly, this case seeks to eliminate the "Driver Name" and "Driver
Name & Minor Name" matching rule types.  The principal rationale for
this change is that driver names and minor names are not as stable as
the /dev pathname for a device, which forms a more rigorous interface.

C. User Interface Changes

The current zonecfg(1M) syntax is described in PSARC 2003/621 "Zone
Administration Updates".  As documented in that case, a user creates
a device matching rule as follows:

	zonecfg:foo> add device
	zonecfg:foo:device> set matchtype=devpath
	zonecfg:foo:device> set match=/dev/dsk/c0*
	zonecfg:foo:device> end

This case seeks to eliminate the "matchtype" parameter, simplifying the
syntax:

	zonecfg:foo> add device
	zonecfg:foo:device> set match=/dev/dsk/c0*
	zonecfg:foo:device> end