[9fans] logout from cpu server

[9fans] logout from cpu server

[okamoto]

I remember that Charles made us possible to logout from
cou server.   I have now multiple cpu servers, and want to
logout from those.

Does nayone have such thing for this release?

Kenji

Re: [9fans] logout from cpu server

[C H Forsyth]

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i don't remember that at all.  what did it/i do?

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From: okamoto@granite.cias.osakafu-u.ac.jp
To: 9fans@cse.psu.edu
Subject: [9fans] logout from cpu server
Date: Fri, 25 Jul 2003 17:02:07 +0900
Message-ID: <9841db59954fbeb3b28cd2caa5dcdbb4@granite.cias.osakafu-u.ac.jp>

I remember that Charles made us possible to logout from
cou server.   I have now multiple cpu servers, and want to
logout from those.

Does nayone have such thing for this release?

Kenji

Re: [9fans] logout from cpu server

[okamoto]

> i don't remember that at all.  what did it/i do?

make change to console of cpu server to logout from it.
It was for Release 3 Plan 9 I remember.

Kenji

Re: [9fans] logout from cpu server

[Charles Forsyth]

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i think there was some code that was simply commented out or somehow
conditional, probably in /sys/src/9/boot, that if enabled
would force a prompt for the password.
the code seems to have gone completely now because getpasswd
is still there but completely unused.

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From: okamoto@granite.cias.osakafu-u.ac.jp
To: 9fans@cse.psu.edu
Subject: Re: [9fans] logout from cpu server
Date: Fri, 25 Jul 2003 17:20:08 +0900
Message-ID: <737224cc03679161c17186da82a8e768@granite.cias.osakafu-u.ac.jp>

> i don't remember that at all.  what did it/i do?

make change to console of cpu server to logout from it.
It was for Release 3 Plan 9 I remember.

Kenji

Re: [9fans] logout from cpu server

[Fco.J.Ballesteros]

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what do you mean by logout? To stop the processes you have on them?
Or to avoid the console session for your local bootes user?

If you mean last, you can run a cat /dev/kprint on the console, since
del is handled by rio it wont be interrupted.

I'm just confussed. ☺

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From: okamoto@granite.cias.osakafu-u.ac.jp
To: 9fans@cse.psu.edu
Subject: [9fans] logout from cpu server
Date: Fri, 25 Jul 2003 17:02:07 +0900
Message-ID: <9841db59954fbeb3b28cd2caa5dcdbb4@granite.cias.osakafu-u.ac.jp>

I remember that Charles made us possible to logout from
cou server.   I have now multiple cpu servers, and want to
logout from those.

Does nayone have such thing for this release?

Kenji

Re: [9fans] logout from cpu server

[okamoto]

> what do you mean by logout? To stop the processes you have on them?
> Or to avoid the console session for your local bootes user?

Just disable someone who can be a host owner when I was not in
the room.   ☺   That is, let the machine to require password when
someone wants to dispatche some commands on the cpu server's
console.

Kenji

Re: [9fans] logout from cpu server

[Lucio De Re]

On Fri, Jul 25, 2003 at 05:20:08PM +0900, okamoto@granite.cias.osakafu-u.ac.jp wrote:
>
> > i don't remember that at all.  what did it/i do?
>
> make change to console of cpu server to logout from it.
> It was for Release 3 Plan 9 I remember.
>
The pass() function that does the prompting is still in
/sys/src/cmd/init.c, but the call seems to have vanished.  I guess I
best look in old sources for it...

Here is what it used to look like:

for(;;){
	if(iscpu){
		consctl = open("#c/consctl", OWRITE);
		key = open("#c/key", OREAD);
		if(consctl<0 || key<0 || write(consctl, "rawon", 5) != 5)
			print("init: can't check password; insecure\n");
		else{
			pass(key);
			write(consctl, "rawoff", 6);
		}
		close(consctl);
		close(key);
	}
	print("\ninit: starting /bin/rc\n");
	fexec(rcexec);
	manual = 1;
	cmd = 0;
	sleep(1000);
}

And here is the new one:

for(;;){
	print("\ninit: starting /bin/rc\n");
	fexec(rcexec);
	manual = 1;
	cmd = 0;
	sleep(1000);
}

I always regretted losing this bit.

++L

Re: [9fans] logout from cpu server

[okamoto]

> Here is what it used to look like:
> 
> for(;;){
> 	if(iscpu){
> 		consctl = open("#c/consctl", OWRITE);
> 		key = open("#c/key", OREAD);
> 		if(consctl<0 || key<0 || write(consctl, "rawon", 5) != 5)
> 			print("init: can't check password; insecure\n");
> 		else{
> 			pass(key);
> 			write(consctl, "rawoff", 6);
> 		}
> 		close(consctl);
> 		close(key);
> 	}
> 	print("\ninit: starting /bin/rc\n");
> 	fexec(rcexec);
> 	manual = 1;
> 	cmd = 0;
> 	sleep(1000);
> }
> 
> And here is the new one:
> 
> for(;;){
> 	print("\ninit: starting /bin/rc\n");
> 	fexec(rcexec);
> 	manual = 1;
> 	cmd = 0;
> 	sleep(1000);
> }

I tried this, and failed. ☺

The error messages are as follows:

peridotite# Ctl-d
init: rc exit status: rc 106: false
init: can't check password; insecure

init: starting /bin/rc
peridotite#

Hmm... Once again I'm seeing the cpu server's prompt!, even if
I did not enter the right password!

Kenji

Re: [9fans] logout from cpu server

[Lucio De Re]

On Fri, Jul 25, 2003 at 06:12:25PM +0900, okamoto@granite.cias.osakafu-u.ac.jp wrote:
>
> peridotite# Ctl-d
> init: rc exit status: rc 106: false
> init: can't check password; insecure
>
That must be because:

	if(consctl<0 || key<0 || write(consctl, "rawon", 5) != 5)
		print("init: can't check password; insecure\n");

which could be due to a number of causes.  Maybe we can check which of

	consctl = open("#c/consctl", OWRITE);
	key = open("#c/key", OREAD);
	write(consctl, "rawon", 5);

is most likely to have failed.  Hm, /dev/key (#c/key) doesn't seem to
exist anymore.  Any suggestions from Bell Labs?

++L

Re: [9fans] logout from cpu server

[David Presotto]

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#c/key is replaced by factotum.  If you want a getty-like program on the
console server, have it query factotum for logins.

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From: Lucio De Re <lucio@proxima.alt.za>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] logout from cpu server
Date: Fri, 25 Jul 2003 11:38:36 +0200
Message-ID: <20030725113833.R28024@cackle.proxima.alt.za>

On Fri, Jul 25, 2003 at 06:12:25PM +0900, okamoto@granite.cias.osakafu-u.ac.jp wrote:
>
> peridotite# Ctl-d
> init: rc exit status: rc 106: false
> init: can't check password; insecure
>
That must be because:

	if(consctl<0 || key<0 || write(consctl, "rawon", 5) != 5)
		print("init: can't check password; insecure\n");

which could be due to a number of causes.  Maybe we can check which of

	consctl = open("#c/consctl", OWRITE);
	key = open("#c/key", OREAD);
	write(consctl, "rawon", 5);

is most likely to have failed.  Hm, /dev/key (#c/key) doesn't seem to
exist anymore.  Any suggestions from Bell Labs?

++L

Re: [9fans] logout from cpu server

[boyd, rounin]

factotum rocks!!