[Buildroot] [PATCH 2/4] core: allow packages to declare a permission file

Arnout Vandecappelle arnout at mind.be
Mon Jul 3 16:03:21 UTC 2017


 Hi all,

On 29-03-17 08:43, Arnout Vandecappelle wrote:
> 
> 
> On 29-03-17 00:12, Arnout Vandecappelle wrote:
> [snip]
>> define BUSYBOX_PERMISSIONS
>> 	$(foreach app,$(shell \
>> 		for app in `grep -r -e "APPLET.*BB_SUID_REQUIRE\|APPLET.*BB_SUID_MAYBE"
>> $(BUSYBOX_DIR)/include/applets.h \
>> 			| sed -e 's/,.*//' -e 's/.*(//'`; \
>> 		do \
>> 			grep -w $${app} $(BUSYBOX_DIR)/busybox.links; \
>> 		done #) ),$(app) f 4755 0  0 - - - - -$(sep))
>> endef
>>
>>  For that to work, the condition around PACKAGES_PERMISSIONS_TABLES += must be
>> removed, but that's fine IMO (just adds a lot of empty lines to the device
>> table, but that doesn't hurt). The #) is a bit ugly but I'm sure a better
>> solution can be found.
>>
>>  With that solution, patches 2 and 3 wouldn't be needed.
> 
>  And an even simpler approach would be to always run the installation commands
> under fakeroot (with the -i -s options of course) That would simplify a lot of
> things. But there are probably problems with that approach as well - e.g.
> nothing should install/remove anything in target outside of the install-target step.

 We finally got around to discussing this at the Summer Camp. The conclusion is
that the simplest option is in fact to go back to your earlier solution, where
makedevs would be extended with a file type that ignores files that don't exist,
and the BUSYBOX_PERMISSIONS are set statically for all potential busybox
applets. Yann doesn't like it but he's a minority :-).

 Bryce, Adam, do you think you could reconstruct such a series?

 For now, I've marked these three patches as Rejected in patchwork.

 Regards,
 Arnout

-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
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