RE: [PATCH] network: Check full BNEP UUID

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Hi Johan,

> -----Original Message-----
> From: Johan Hedberg [mailto:johan.hedberg@xxxxxxxxx]
> Sent: den 15 augusti 2012 14:41
> To: Par-Gunnar HJALMDAHL
> Cc: linux-bluetooth@xxxxxxxxxxxxxxx; Anurag GUPTA-1
> Subject: Re: [PATCH] network: Check full BNEP UUID
> 
> Hi P-G,
> 
> On Wed, Aug 15, 2012, Par-Gunnar HJALMDAHL wrote:
> > Basically I tried to keep the patch to a minimum since it was quite a
> > simple issue to fix.
> >
> > I have no problems to use the UUID in lib/uuid.c. I could add a 2 new
> > exported functions for retrieving base UUID, one for little endian
> and
> > one for big endian, since uuid.c endian depends on CPU endian while
> > PAN endian is always big endian. So:
> > void get_le_bt_base_uuid(uint128_t *uuid);
> > void get_be_bt_base_uuid(uint128_t *uuid);
> 
> Note that the uuid.{c,h} name space is bt_uuid_*
> 
> So far uuid.c has been fully hiding any endianness issues in its public
> API by only talking host-endianness. So, if this was to be really done
> in a clean way I'd say the calling code should look like:
> 
> 	uint128_t u128;
> 	bt_uuid_t uuid;
> 
> 	u128 = bt_get_be128(dest);
> 
> 	bt_uuid128_create(&uuid, u128);
> 	if (!bt_uuid_is_bluetooth(&uuid))
> 		return BNEP_CONN_INVALID_DST;
> 
> 	/* same for source */
> 
> However, as this would require at least two new functions
> (bt_get_be128() in lib/bluetooth.h and bt_uuid_is_bluetooth() in
> lib/uuid.c) and like you say the use case is quite trivial, I think
> this
> might be a bit overkill.
> 
> So, since you were fine with my alteration of your patch I think I'll
> just go ahead and push it upstream. If you still want to add the
> necessary APIs for the "truly clean" approach, feel free, but I won't
> be
> bugging you about it ;)
> 
> Johan

Yes, I'm fine with your suggested patch as-is.
It's OK to just push it. :-)

/P-G

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