linux-toradex.git/net/6lowpan/iphc.c, branch v4.10

6lowpan: add support for 802.15.4 short addr handling

2016-06-16T03:41:24+00:00

This patch adds necessary handling for use the short address for
802.15.4 6lowpan. It contains support for IPHC address compression
and new matching algorithmn to decide which link layer address will be
used for 802.15.4 frame.

Reviewed-by: Stefan Schmidt 
Signed-off-by: Alexander Aring 
Signed-off-by: David S. Miller

6lowpan: move mac802154 header

2016-04-13T08:41:10+00:00

In case of link-layer specific handling for 802.15.4 we need to cast to
802.15.4 sepcific structures. Simple add this header when include the
6lowpan header.

Signed-off-by: Alexander Aring 
Reviewed-by: Stefan Schmidt
Acked-by: Jukka Rissanen 
Signed-off-by: Marcel Holtmann

6lowpan: move eui64 uncompress function

2016-04-13T08:41:10+00:00

This function will be use in later functionality in other branches than
generic 6lowpan, so we move it to the global 6lowpan header.

Signed-off-by: Alexander Aring 
Reviewed-by: Stefan Schmidt
Acked-by: Jukka Rissanen 
Signed-off-by: Marcel Holtmann

6lowpan: iphc: remove unnecessary zero data

2016-04-13T08:41:09+00:00

This patch removes unnecessary zero data for a stack variable.

Signed-off-by: Alexander Aring 
Acked-by: Jukka Rissanen 
Signed-off-by: Marcel Holtmann

6lowpan: iphc: rename add lowpan prefix

2016-04-13T08:41:09+00:00

This patch adds a lowpan prefix to each functions which doesn't have
such prefix currently.

Reviewed-by: Stefan Schmidt 
Signed-off-by: Alexander Aring 
Acked-by: Jukka Rissanen 
Signed-off-by: Marcel Holtmann

6lowpan: change naming for lowpan private data

2016-04-13T08:41:09+00:00

This patch changes the naming for interface private data for lowpan
intefaces. The current private data scheme is:

-------------------------------------------------
|    6LoWPAN Generic   |    LinkLayer 6LoWPAN   |
-------------------------------------------------

the current naming schemes are:

- 6LoWPAN Generic:
  - lowpan_priv
- LinkLayer 6LoWPAN:
  - BTLE
    - lowpan_dev
  - 802.15.4:
    - lowpan_dev_info

the new naming scheme with this patch will be:

- 6LoWPAN Generic:
  - lowpan_dev
- LinkLayer 6LoWPAN:
  - BTLE
    - lowpan_btle_dev
  - 802.15.4:
    - lowpan_802154_dev

Signed-off-by: Alexander Aring 
Reviewed-by: Stefan Schmidt
Acked-by: Jukka Rissanen 
Signed-off-by: Marcel Holtmann

6lowpan: iphc: fix handling of link-local compression

2016-04-08T17:28:13+00:00

This patch fixes handling in case of link-local address compression. A
IPv6 link-local address is defined as fe80::/10 prefix which is also
what ipv6_addr_type checks for link-local addresses.

But IPHC compression for link-local addresses are for fe80::/64 types
only. This patch adds additional checks for zero padded bits in case of
link-local address compression to match on a fe80::/64 address only.

Signed-off-by: Alexander Aring 
Acked-by: Jukka Rissanen 
Reviewed-by: Stefan Schmidt 
Signed-off-by: Marcel Holtmann

6lowpan: iphc: fix SAM/DAM bit comment

2016-03-10T18:51:29+00:00

This patch fixes the comments for SAM/DAM value.

Signed-off-by: Alexander Aring 
Signed-off-by: Marcel Holtmann

6lowpan: iphc: fix invalid case handling

2016-02-26T08:08:15+00:00

This patch fixes the return value in a case which should never occur.
Instead returning "-EINVAL" we return LOWPAN_IPHC_DAM_00 which is
invalid on context based addresses. Also change the WARN_ON_ONCE to
WARN_ONCE which was suggested by Dan Carpenter.

Reported-by: Dan Carpenter 
Signed-off-by: Alexander Aring 
Signed-off-by: Marcel Holtmann

6lowpan: fix error checking code

2016-02-24T15:16:04+00:00

Bool variable 'fail' is always non-negative, it indicates an error if it
is true.

The problem has been detected using coccinelle script
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci

Signed-off-by: Andrzej Hajda 
Acked-by: Alexander Aring 
Signed-off-by: Marcel Holtmann