Re: [PATCH 5/8] Bluetooth: Add MGMT handlers for dealing with SMP LTK's

[Vinicius Costa Gomes <vinicius.gomes@openbossa.org>]

Hi Marcel,

On 14:46 Mon 30 Jan, Marcel Holtmann wrote:
> Hi Vinicius,
> 
> > This adds a method to notify that a new LTK is available and
> > a handler to store keys coming from userspace into the kernel LTK
> > list.
> > 
> > Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
> > ---
> >  include/net/bluetooth/hci_core.h |    2 +
> >  net/bluetooth/mgmt.c             |   82 ++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 84 insertions(+), 0 deletions(-)
> > 
> > diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
> > index ae3f653..9e415dc 100644
> > --- a/include/net/bluetooth/hci_core.h
> > +++ b/include/net/bluetooth/hci_core.h
> > @@ -994,6 +994,8 @@ int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
> >  int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
> >  int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
> >  
> > +int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
> > +
> >  /* HCI info for socket */
> >  #define hci_pi(sk) ((struct hci_pinfo *) sk)
> >  
> > diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
> > index 8970799..57aa716 100644
> > --- a/net/bluetooth/mgmt.c
> > +++ b/net/bluetooth/mgmt.c
> > @@ -2181,6 +2181,62 @@ done:
> >  	return err;
> >  }
> >  
> > +static int load_long_term_keys(struct sock *sk, u16 index,
> > +					unsigned char *data, u16 len)
> > +{
> > +	struct hci_dev *hdev;
> > +	struct mgmt_cp_load_long_term_keys *cp;
> > +	u16 key_count, expected_len;
> > +	int i;
> > +
> > +	cp = (void *) data;
> 
> can we get rid of this nasty casting by using proper void pointers in
> the first place instead of unsigned char?

I will send this change as a separated patch, as there are quite a few
places that do the same thing.

> 
> Regards
> 
> Marcel
> 
> 

Cheers,
-- 
Vinicius