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Path: utzoo!watmath!watdcsu!herbie
From: herbie@watdcsu.UUCP (Herb Chong [DCS])
Newsgroups: net.unix
Subject: Re: Is anybody *USING* ANSI tapes on UNIX (label handling)
Message-ID: <1240@watdcsu.UUCP>
Date: Sat, 13-Apr-85 17:12:49 EST
Article-I.D.: watdcsu.1240
Posted: Sat Apr 13 17:12:49 1985
Date-Received: Sun, 14-Apr-85 04:11:47 EST
References: <504@sal.UUCP> <533@spp2.UUCP>
Reply-To: herbie@watdcsu.UUCP (Herb Chong [DCS])
Distribution: net
Organization: U of Waterloo
Lines: 38
Summary: 

In article <533@spp2.UUCP> jhull@spp2.UUCP (Jeff Hull) writes:
>In article <504@sal.UUCP> jf@sal.UUCP (Johan Finnved) writes:
>>Possible implementation suggestions:
>>
>>... It starts by
>>rewinding the tape and checking its volume label in order to make sure
>>that this user (real uid) has really the right to use this tape. ...
>>Does anybody have ideas on what to put in the fields for Owner
>>Identifier (in VOL1 lables), Accessibility  (In VOL1 and HDR1-EOV1-EOF1
>>labels) and System Code (in HDR1-EOV1-EOF1 labels) ?
>
>Just be sure that, for those cases when I take my tape to your site, I
>can read & write to my tape without requiring recourse to superuser
>capabilities.  (The loginid & userid probably will be different.  Very
>often, my userid on my system will be assigned to someone else on
>your system.)
>
>-- 
> Blessed Be,
>
> Jeff Hull            {decvax,hplabs,ihnp4,scdrdcf,ucbvax}
> 13817 Yukon Ave.         trwrb!trwspp!spp2!jhull
> Hawthorne, CA 90250		34o3'15" N  by  118o14'28" W

most places i know map the tape volume identification to an owner
on the system that is being used on and the tape access routines verify
permissions before opening the tape file as in regular disk file
permission checking.  this requires an online tape registry and a method
for the owner to change permissions on the tape.

Herb Chong...

I'm user-friendly -- I don't byte, I nybble....

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