[9front] new user

[9front] new user

[thinktankworkspaces]

I created a new user on another system. Its running hjfs

I noticed permission had sys?

cpu% ls -l
d-rwxrwxr-x M 184 glenda glenda 0 Feb 26 14:46 glenda
d-rwxrwxr-x M 184 www    sys    0 Feb 26 16:08 www

This does not seem right?

Re: [9front] new user

[Alex Musolino]

> I created a new user on another system. Its running hjfs
> 
> I noticed permission had sys?
> 
> cpu% ls -l
> d-rwxrwxr-x M 184 glenda glenda 0 Feb 26 14:46 glenda
> d-rwxrwxr-x M 184 www    sys    0 Feb 26 16:08 www
> 
> This does not seem right?

This is a bug in hjfs that has been uncovered by changeset
e1907b41d32441e79e8cc3db26afc5f0c4cdcef9.  New directories *are*
supposed to inherit their group from the parent directory.  However,
this is not what we want when creating home directories for new users.

I think the following ought to fix it.  Can you give this a try?

diff facb0e757ac63f763bd942a2714f979538b99eb0 uncommitted
--- a/sys/src/cmd/hjfs/auth.c
+++ b/sys/src/cmd/hjfs/auth.c
@@ -366,13 +366,18 @@
 createuserdir(Fs *fs, char *name, short uid)
 {
 	Chan *ch;
+	Dir di;
 
 	ch = chanattach(fs, CHFNOPERM);
 	if(ch == nil)
 		return;
 	ch->uid = uid;
-	if(chanwalk(ch, "usr") > 0)
+	if(chanwalk(ch, "usr") > 0){
 		chancreat(ch, name, DMDIR | 0775, OREAD);
+		nulldir(&di);
+		di.gid = name;
+		chanwstat(ch, &di);
+	}
 	chanclunk(ch);
 }
 

Re: [9front] new user

[Alex Musolino]

> I think the following ought to fix it.  Can you give this a try?

After backing up your data, of course.  This is the filesystem code
you're messing about with after all.

Re: [9front] new user

[thinktankworkspaces]

Sorry. I felt something was wrong and purged it then did install with cwfs. 
I didn't have any data on it. It was a new install

Thanks!

Quoth Alex Musolino <alex@musolino.id.au>:
> > I created a new user on another system. Its running hjfs
> > 
> > I noticed permission had sys?
> > 
> > cpu% ls -l
> > d-rwxrwxr-x M 184 glenda glenda 0 Feb 26 14:46 glenda
> > d-rwxrwxr-x M 184 www    sys    0 Feb 26 16:08 www
> > 
> > This does not seem right?
> 
> This is a bug in hjfs that has been uncovered by changeset
> e1907b41d32441e79e8cc3db26afc5f0c4cdcef9.  New directories *are*
> supposed to inherit their group from the parent directory.  However,
> this is not what we want when creating home directories for new users.
> 
> I think the following ought to fix it.  Can you give this a try?
> 
> diff facb0e757ac63f763bd942a2714f979538b99eb0 uncommitted
> --- a/sys/src/cmd/hjfs/auth.c
> +++ b/sys/src/cmd/hjfs/auth.c
> @@ -366,13 +366,18 @@
>  createuserdir(Fs *fs, char *name, short uid)
>  {
>  	Chan *ch;
> +	Dir di;
>  
>  	ch = chanattach(fs, CHFNOPERM);
>  	if(ch == nil)
>  		return;
>  	ch->uid = uid;
> -	if(chanwalk(ch, "usr") > 0)
> +	if(chanwalk(ch, "usr") > 0){
>  		chancreat(ch, name, DMDIR | 0775, OREAD);
> +		nulldir(&di);
> +		di.gid = name;
> +		chanwstat(ch, &di);
> +	}
>  	chanclunk(ch);
>  }
>  
> 

Re: [9front] new user

[Alex Musolino]

> This is a bug in hjfs that has been uncovered by changeset
> e1907b41d32441e79e8cc3db26afc5f0c4cdcef9.  New directories *are*
> supposed to inherit their group from the parent directory.  However,
> this is not what we want when creating home directories for new users.
> 
> I think the following ought to fix it.  Can you give this a try?

I got around to trying this out on a spare machine/disk tonight.
Worked for me.  Committed.

Re: [9front] new user

[thinktankworkspaces]

Quoth Alex Musolino <alex@musolino.id.au>:
> > This is a bug in hjfs that has been uncovered by changeset
> > e1907b41d32441e79e8cc3db26afc5f0c4cdcef9.  New directories *are*
> > supposed to inherit their group from the parent directory.  However,
> > this is not what we want when creating home directories for new users.
> > 
> > I think the following ought to fix it.  Can you give this a try?
> 
> I got around to trying this out on a spare machine/disk tonight.
> Worked for me.  Committed.
> 

is it worth using hjfs vs cjfs. Not sure of the trade off after I switched?

Re: [9front] new user

[Alex Musolino]

> is it worth using hjfs vs cjfs.  Not sure of the trade off after I
> switched?

The main benefit of hjfs(4) would seem to me to be its ability to work
with small disks.  Running cwfs(4) on a 10GB VPS is a non-starter.  I
think you can run cwfs(4) in a cache-only mode in such a situation,
but then you lose the dump.  With hjfs(4) you can have it both ways.

Re: [9front] new user

[Stanley Lieber]

cwfs has 16k blocks.
hjfs has 4k blocks.
this makes a huge difference if you have a large number of small files.

sl


> On Mar 9, 2022, at 11:16 PM, Alex Musolino <alex@musolino.id.au> wrote:
> 
> 
>> 
>> is it worth using hjfs vs cjfs.  Not sure of the trade off after I
>> switched?
> 
> The main benefit of hjfs(4) would seem to me to be its ability to work
> with small disks.  Running cwfs(4) on a 10GB VPS is a non-starter.  I
> think you can run cwfs(4) in a cache-only mode in such a situation,
> but then you lose the dump.  With hjfs(4) you can have it both ways.
> 
> 

[9front] New user

[Benjamin Riefenstahl]

Hi everybody.

I am having some fun with 9front lately, just looking at what it does in
a VM and trying to wrap my head around concepts.

Besides trying out the native stuff, I have started a personal project
to get Tcl to run.  This is uncovering bugs in Tcl as well as in
9front's APE library.  Are you interested in patches for APE?  I notice
that voices on the net discourage porting packages to Plan 9 and that
"This UNIX compatibility [meaning APE] is old and quite unmaintained"
(https://pspodcasting.net/dan/blog/2019/plan9_desktop.html).

Let me know, and I can provide patches to individual problems when I
have them.

so long, benny

Re: [9front] New user

[Humm]

Quoth Benjamin Riefenstahl:
>Besides trying out the native stuff, I have started a personal project
>to get Tcl to run.

Isn’t there a Tcl port in fgb’s contrib?  (That means you do 
`9fs 9pio` (read /rc/bin/9fs) and look at 
/n/9pio/contrib/fgb/root/sys/src/^(lib cmd)/^tcl.) (Also, why?)

>This is uncovering bugs in Tcl as well as in
>9front's APE library.  Are you interested in patches for APE?

APE was not yet thrown out of 9front.  Generally bugfixes are good.

>I notice
>that voices on the net discourage porting packages to Plan 9 and that
>"This UNIX compatibility [meaning APE] is old and quite unmaintained"
>(https://pspodcasting.net/dan/blog/2019/plan9_desktop.html).

Yep, APE is old and quite unmaintained.  I recommend looking at 
https://git.sr.ht/~ft/npe .

-- 
Humm

Re: [9front] New user

[Benjamin Riefenstahl]

Hi Humm,

> Quoth Benjamin Riefenstahl:
>>Besides trying out the native stuff, I have started a personal project
>>to get Tcl to run.

Humm writes:
> Isn’t there a Tcl port in fgb’s contrib?  (That means you do `9fs
> 9pio` (read /rc/bin/9fs) and look at
> /n/9pio/contrib/fgb/root/sys/src/^(lib cmd)/^tcl.)

Right, that is the basis of what I am doing.  First there was a problem
with the 64 bit version (seems fgb worked on 32 bit at the time), that
was a Tcl problem.  Than I moved it to a recent version of Tcl and now I
am trying to get through the Tcl test suite.  And as I said, that turns
up some limitations.

> (Also, why?)

For fun, to learn about Plan 9 and to give back a bit to my favorite
programming language.

> APE was not yet thrown out of 9front.  Generally bugfixes are good.

Ok, thanks.

> Yep, APE is old and quite unmaintained.  I recommend looking at
> https://git.sr.ht/~ft/npe .

Thinks for that pointer, I have just seen that, too.  It looks quite
limited, though, even compared to APE.

Thanks, benny

Re: [9front] New user

[theinicke]

Quoth Benjamin Riefenstahl <b.riefenstahl@turtle-trading.net>:
> Hi everybody.
> 
> I am having some fun with 9front lately, just looking at what it does in
> a VM and trying to wrap my head around concepts.
> 
> Besides trying out the native stuff, I have started a personal project
> to get Tcl to run.  This is uncovering bugs in Tcl as well as in
> 9front's APE library.  Are you interested in patches for APE?  I notice
> that voices on the net discourage porting packages to Plan 9 and that
> "This UNIX compatibility [meaning APE] is old and quite unmaintained"
> (https://pspodcasting.net/dan/blog/2019/plan9_desktop.html).
> 
> Let me know, and I can provide patches to individual problems when I
> have them.
> 
> so long, benny
> 

Hi,

you might be interested in fgb's Tcl port:
https://9p.io/sources/contrib/fgb/root/sys/src/cmd/tcl/

That being said, I think that patches are always welcome.

Cheers,
Tobias Heinicke

Re: [9front] New user

[ori]

Quoth Benjamin Riefenstahl <b.riefenstahl@turtle-trading.net>:
> Hi everybody.
> 
> I am having some fun with 9front lately, just looking at what it does in
> a VM and trying to wrap my head around concepts.
> 
> Besides trying out the native stuff, I have started a personal project
> to get Tcl to run.  This is uncovering bugs in Tcl as well as in
> 9front's APE library.  Are you interested in patches for APE?  I notice
> that voices on the net discourage porting packages to Plan 9 and that
> "This UNIX compatibility [meaning APE] is old and quite unmaintained"
> (https://pspodcasting.net/dan/blog/2019/plan9_desktop.html).
> 
> Let me know, and I can provide patches to individual problems when I
> have them.

It's old and not particularly loved, but it's only
unmaintained if nobody sends patches to maintain it.

Re: [9front] New user

[qwx]

On Thu Dec 30 21:26:13 +0200 2021, b.riefenstahl@turtle-trading.net wrote:
> Besides trying out the native stuff, I have started a personal project
> to get Tcl to run.  This is uncovering bugs in Tcl as well as in
> 9front's APE library.
[...]

You might also be interested in this:  https://github.com/opless/jimsh9.

Cheers,
qwx

Re: [9front] New user

[Benjamin Riefenstahl]

Hi qwx,

qwx writes:
> You might also be interested in this:  https://github.com/opless/jimsh9.

I had heard about Jim before, but I did not know that it builds on Plan
9.  Interesting, thanks.

so long, benny