Add nl802154 command to get information about PHY's present in
the system.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Move all mac-related stuff to separate file so that ieee802154/netlink.c
contains only generic code.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

There is no real need to have ieee802154 interfaces separate
into several small modules, as neither of them has it's own use.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Follow the usual pattern of devices registration by adding new function
(wpan_phy_set_dev) that sets child->parent relationship and removing
parent argument from wpan_phy_register call.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

IEEE 802.15.4-2006 defines channel pages that hold channels (max 32 pages,
27 channels per page). Allow the driver to specify supported channels
on pages, other than the first one.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Use snprintf to limit the amount of chars put in the buffer for attr -> show.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Set page to zero (for compatibility w/ devices supporting only first page).
Also init channel by default to -1 to disallow transfers for non-initialised
devices.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Add API to iterate over the wpan-phy instances.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

sock_queue_rcv_skb() can update sk_drops itself, removing need for
callers to take care of it. This is more consistent since
sock_queue_rcv_skb() also reads sk_drops when queueing a skb.

This adds sk_drops managment to many protocols that not cared yet.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Create a new socket level option to report number of queue overflows

Recently I augmented the AF_PACKET protocol to report the number of frames lost
on the socket receive queue between any two enqueued frames.  This value was
exported via a SOL_PACKET level cmsg.  AFter I completed that work it was
requested that this feature be generalized so that any datagram oriented socket
could make use of this option.  As such I've created this patch, It creates a
new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a
SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue
overflowed between any two given frames.  It also augments the AF_PACKET
protocol to take advantage of this new feature (as it previously did not touch
sk->sk_drops, which this patch uses to record the overflow count).  Tested
successfully by me.

Notes:

1) Unlike my previous patch, this patch simply records the sk_drops value, which
is not a number of drops between packets, but rather a total number of drops.
Deltas must be computed in user space.

2) While this patch currently works with datagram oriented protocols, it will
also be accepted by non-datagram oriented protocols. I'm not sure if thats
agreeable to everyone, but my argument in favor of doing so is that, for those
protocols which aren't applicable to this option, sk_drops will always be zero,
and reporting no drops on a receive queue that isn't used for those
non-participating protocols seems reasonable to me.  This also saves us having
to code in a per-protocol opt in mechanism.

3) This applies cleanly to net-next assuming that commit
97775007 (my af packet cmsg patch) is reverted
Signed-off-by: NNeil Horman <nhorman@tuxdriver.com>
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

All usages of structure net_proto_ops should be declared const.
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This provides safety against negative optlen at the type
level instead of depending upon (sometimes non-trivial)
checks against this sprinkled all over the the place, in
each and every implementation.

Based upon work done by Arjan van de Ven and feedback
from Linus Torvalds.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Remove __user annotation from optlen arg as it's bogus.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

There are not maste devices in mac802154 anymore, so drop
ARPHRD_IEEE802154_PHY definition.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

IEEE 802.15.4-2006 adds new concept: channel pages, which can contain several
channels. Add support for channel pages in the API and in the fakehard driver.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Add a sysfs/in-kernel representation of LR-WPAN master devices.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

1) fix ro->bound protection by socket lock
2) make ro->bound bit instead of int
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Provide dummt get/setsockopt implementations to stop these
syscalls from oopsing on our sockets.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

fix two errors in ioctl processing:
1) if the ioctl isn't supported one should return -ENOIOCTLCMD
2) don't call ndo_do_ioctl if the device doesn't provide it
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

include/net/ieee802154/af_ieee802154.h (and others) naming seems to be too long
and redundant. Drop one level of subdirectories.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

ieee802154_nl_get_dev() lacks check for the existance of the device
that was returned by dev_get_XXX, thus resulting in Oops for non-existing
devices. Fix it.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>

Use print_hex_dump_bytes instead of self-written dumping function
for outputting packet dumps.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

commit 2b85a34e
(net: No more expensive sock_hold()/sock_put() on each tx)
changed initial sk_wmem_alloc value.

We need to take into account this offset when reporting
sk_wmem_alloc to user, in PROC_FS files or various
ioctls (SIOCOUTQ/TIOCOUTQ)
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add a netlink interface for configuration of IEEE 802.15.4 device. Also this
interface specifies events notification sent by devices towards higher layers.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NSergey Lapin <slapin@ossfans.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add support for communication over IEEE 802.15.4 networks. This implementation
is neither certified nor complete, but aims to that goal. This commit contains
only the socket interface for communication over IEEE 802.15.4 networks.
One can either send RAW datagrams or use SOCK_DGRAM to encapsulate data
inside normal IEEE 802.15.4 packets.

Configuration interface, drivers and software MAC 802.15.4 implementation will
follow.

Initial implementation was done by Maxim Gorbachyov, Maxim Osipov and Pavel
Smolensky as a research project at Siemens AG. Later the stack was heavily
reworked to better suit the linux networking model, and is now maitained
as an open project partially sponsored by Siemens.
Signed-off-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NSergey Lapin <slapin@ossfans.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>