linux-toradex.git/net/nfc/llcp_core.c, branch v4.10

NFC: llcp: Use dynamic debug for hex dump

2016-07-04T10:26:27+00:00

LLCP skb tx and rx functions now use print_hex_dump_debug() making
these verbose traces controllable using dynamic debug.

Signed-off-by: Thierry Escande 
Signed-off-by: Samuel Ortiz

net: Pass kern from net_proto_family.create to sk_alloc

2015-05-11T14:50:17+00:00

In preparation for changing how struct net is refcounted
on kernel sockets pass the knowledge that we are creating
a kernel socket from sock_create_kern through to sk_alloc.

Signed-off-by: "Eric W. Biederman" 
Signed-off-by: David S. Miller

NFC: Fix a memory leak

2014-11-28T13:07:51+00:00

Signed-off-by: Julien Lefrique 
Signed-off-by: Samuel Ortiz

net: add __pskb_copy_fclone and pskb_copy_for_clone

2014-06-11T22:38:02+00:00

There are several instances where a pskb_copy or __pskb_copy is
immediately followed by an skb_clone.

Add a couple of new functions to allow the copy skb to be allocated
from the fclone cache and thus speed up subsequent skb_clone calls.

Cc: Alexander Smirnov 
Cc: Dmitry Eremin-Solenikov 
Cc: Marek Lindner 
Cc: Simon Wunderlich 
Cc: Antonio Quartulli 
Cc: Marcel Holtmann 
Cc: Gustavo Padovan 
Cc: Johan Hedberg 
Cc: Arvid Brodin 
Cc: Patrick McHardy 
Cc: Pablo Neira Ayuso 
Cc: Jozsef Kadlecsik 
Cc: Lauro Ramos Venancio 
Cc: Aloisio Almeida Jr 
Cc: Samuel Ortiz 
Cc: Jon Maloy 
Cc: Allan Stephens 
Cc: Andrew Hendry 
Cc: Eric Dumazet 
Reviewed-by: Christoph Paasch 
Signed-off-by: Octavian Purdila 
Signed-off-by: David S. Miller

NFC: Add RAW socket type support for SOCKPROTO_RAW

2014-05-19T22:06:04+00:00

This allows for a more generic NFC sniffing by using SOCKPROTO_RAW
SOCK_RAW to read RAW NFC frames. This is for sniffing anything but LLCP
(HCI, NCI, etc...).

Signed-off-by: Hiren Tandel 
Signed-off-by: Rahul Tank 
Signed-off-by: Samuel Ortiz

net: Fix use after free by removing length arg from sk_data_ready callbacks.

2014-04-11T20:15:36+00:00

Several spots in the kernel perform a sequence like:

	skb_queue_tail(&sk->s_receive_queue, skb);
	sk->sk_data_ready(sk, skb->len);

But at the moment we place the SKB onto the socket receive queue it
can be consumed and freed up.  So this skb->len access is potentially
to freed up memory.

Furthermore, the skb->len can be modified by the consumer so it is
possible that the value isn't accurate.

And finally, no actual implementation of this callback actually uses
the length argument.  And since nobody actually cared about it's
value, lots of call sites pass arbitrary values in such as '0' and
even '1'.

So just remove the length argument from the callback, that way there
is no confusion whatsoever and all of these use-after-free cases get
fixed as a side effect.

Based upon a patch by Eric Dumazet and his suggestion to audit this
issue tree-wide.

Signed-off-by: David S. Miller

NFC: llcp: Use list_for_each_entry in nfc_llcp_find_local()

2014-03-14T19:19:08+00:00

nfc_llcp_find_local() does not modify any list entry while iterating the list.
So use list_for_each_entry instead of list_for_each_entry_safe.

Signed-off-by: Axel Lin 
Signed-off-by: Samuel Ortiz

NFC: Move checking valid gb_len value to nfc_llcp_set_remote_gb

2014-03-14T19:19:08+00:00

This checking is common for all caller, so move the checking to one place.

Signed-off-by: Axel Lin 
Signed-off-by: Samuel Ortiz

NFC: Use LIST_HEAD() at appropriate places

2014-02-23T22:34:09+00:00

Signed-off-by: Axel Lin 
Signed-off-by: Samuel Ortiz

NFC: llcp: Use default MIU if none was specified on connect

2014-01-04T02:32:27+00:00

If MIUX is not present in CONNECT or CC use default MIU value (128)
instead of one announced durring link setup.

This was affecting Bluetooth handover with Android 4.3+ NCI stack.

Signed-off-by: Szymon Janc 
Signed-off-by: Samuel Ortiz