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From: Julien Grall <julien.grall@linaro.org>
To: Daniel De Graaf <dgdegra@tycho.nsa.gov>, selinux@tycho.nsa.gov
Cc: xen-devel@lists.xenproject.org
Subject: Re: [Xen-devel] [PATCH 2/4] Add device tree ocontext nodes to Xen policy
Date: Thu, 12 Mar 2015 17:27:39 +0000	[thread overview]
Message-ID: <5501CC8B.2040303@linaro.org> (raw)
In-Reply-To: <1426180350-16259-3-git-send-email-dgdegra@tycho.nsa.gov>

Hi Daniel,

On 12/03/15 17:12, Daniel De Graaf wrote:
>  		        ;
> +dtree_context_def	: DEVICETREECON path security_context_def
> +		        {if (define_devicetree_context()) return -1;}
> +		        ;

The regex for matching the device tree path is different from a path.

the pathname convention is:

node-name@unit-address

The characters allowed for node-name/unit-name are:
	0-9 a-z A-Z , . _ + -

Although the @unit-address may be ommitted.

So the regex should be something like:
"/"({alnum}|['\._\+\-@])*

Regards,

-- 
Julien Grall

WARNING: multiple messages have this Message-ID (diff)
From: Julien Grall <julien.grall@linaro.org>
To: Daniel De Graaf <dgdegra@tycho.nsa.gov>, selinux@tycho.nsa.gov
Cc: xen-devel@lists.xenproject.org
Subject: Re: [PATCH 2/4] Add device tree ocontext nodes to Xen policy
Date: Thu, 12 Mar 2015 17:27:39 +0000	[thread overview]
Message-ID: <5501CC8B.2040303@linaro.org> (raw)
In-Reply-To: <1426180350-16259-3-git-send-email-dgdegra@tycho.nsa.gov>

Hi Daniel,

On 12/03/15 17:12, Daniel De Graaf wrote:
>  		        ;
> +dtree_context_def	: DEVICETREECON path security_context_def
> +		        {if (define_devicetree_context()) return -1;}
> +		        ;

The regex for matching the device tree path is different from a path.

the pathname convention is:

node-name@unit-address

The characters allowed for node-name/unit-name are:
	0-9 a-z A-Z , . _ + -

Although the @unit-address may be ommitted.

So the regex should be something like:
"/"({alnum}|['\._\+\-@])*

Regards,

-- 
Julien Grall

  reply	other threads:[~2015-03-12 17:28 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-12 17:12 [PATCH 0/4] Xen/FLASK policy updates for device contexts Daniel De Graaf
2015-03-12 17:12 ` [PATCH 1/4] Expand Xen IOMEMCON to 64 bits Daniel De Graaf
2015-03-12 17:12   ` Daniel De Graaf
2015-03-12 17:34   ` [Xen-devel] " Julien Grall
2015-03-12 17:34     ` Julien Grall
2015-03-12 17:12 ` [PATCH 2/4] Add device tree ocontext nodes to Xen policy Daniel De Graaf
2015-03-12 17:12   ` Daniel De Graaf
2015-03-12 17:27   ` Julien Grall [this message]
2015-03-12 17:27     ` Julien Grall
2015-03-12 17:32     ` [Xen-devel] " Daniel De Graaf
2015-03-12 17:32       ` Daniel De Graaf
2015-03-12 18:04       ` [Xen-devel] " Julien Grall
2015-03-12 18:04         ` Julien Grall
2015-03-12 17:12 ` [PATCH 3/4] checkpolicy: add output for Xen policy version support Daniel De Graaf
2015-03-12 17:12   ` Daniel De Graaf
2015-03-12 17:43   ` Stephen Smalley
2015-03-12 17:43   ` Stephen Smalley
2015-03-12 17:12 ` [PATCH 4/4] checkpolicy: Expand allowed character set in paths Daniel De Graaf
2015-03-12 17:12   ` Daniel De Graaf

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