Re: [RFC][PATCH] /proc/<pid>/rlimit

[Chris Wright]

* Bill Rugolsky Jr. (brugolsky@xxxxxxxxxxxxxxxxxxxxxxxxx) wrote:
> This patch against 2.6.11-rc1-bk6 adds /proc/<pid>/rlimit to export
> per-process resource limit settings.  It was written to help analyze
> daemon core dump size settings, but may be more generally useful.
> Tested on 2.6.10. Sample output:

I can certainly see how it could be useful for debugging.  Perhaps it
should be available to only oneself (like getrlimit restriction) or
CAP_SYS_RESOURCE processes?  (Though, I'm not sure how useful the data
would be to a malicious user).  Also, since the format is both arch
dependent and release dependent I guess it's not ideal for anything that
depends on the format.

> +const char * const rlim_name[RLIM_NLIMITS] = {
> +#ifdef RLIMIT_CPU
> +	[RLIMIT_CPU] = "cpu",
> +#endif

BTW, when I went through the resource.h files, I didn't notice any that
leftout rlimits, it was only about ordering.  So I don't think those
ifdefs are necessary.

thanks,
-chris
-- 
Linux Security Modules     http://lsm.immunix.org     http://lsm.bkbits.net
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