Re: [Perfparse-devel] Perparse Method 4 (pipe) - patch proposal

[Yves <yme...@pe...>]

Hi Daniele,

> Hello folks!
> First of all, I want to congratulate you on the great job doing...

Thanks a lot :)

> I'm currently using nagios 1.2 and perfparse 0.105.5 on a test
> environment on a FreeBSD 5.3, monitoring some host and servicies.

Any compilation problem, or can we consider that it works as perfectly on=
 FreeBSD as on
Linux ?

> I chose the pipe method for perfparse and ran perfparsed as root, but I

First, you should never run a program as root if it does need to. Perfpar=
se does not
need root privileges. This is an admin advice :)

> noticed that perfparse create the pipe with prw-r----- permissions; as =
I
> run nagios as unprivileged user, it wasn't able to write to this pipe..=
.
> I take a look at the source code and noticed that perfparse try to
> create a pipe group writable, but can't do because of some restrictive
> general options set. So I wrote this little patch (in attach) that
> create the pipe with prw-rw---- permissions...
> I think was the author intention to create a group writable pipe,
> otherwise don't care about this patch.

Perfparse creates a pipe with prw-rw---- permissions because I consider t=
hat some users
can run perfparse as "perfparse" user and nagios as "nagios" user, both i=
n the same
group.
It seems to be what you want.

Your problem is a umask problem, and I think this should be set in your e=
nvironment.
Some users like you need a permissive umask like 006. Others prefer a res=
trictive umask
like 066. And I use the usual 022 umask.
There are 2 ways to do it : a config option to specify what permissions t=
o use (a lot of
work) or use "umask" on the command line (nothing to do in perfparse).

I think that most admins will prefer to use umask on the command line bec=
ause it's a
common way to restrict permissions. If you need a specific umask for perf=
parse, this is
easy to do :
#!/bin/sh
umask 006
perfparsed &


Thanks for the patch anyways : it helped at least to understand precisely=
 your problem :)

> I appreciate a lot the summary feature and I'd like to know if it's
> planned a graphical representation and, if yes, if it's planned in a
> short-range or middle-range time.

I let Ben, Tim and others to answer this question.

Yves
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