Commit Graph

69 Commits

Author SHA1 Message Date
alex.bluesman.smirnov@gmail.com
768f7c7c12 6lowpan: add missing spin_lock_init()
Add missing spin_lock_init() for frames list lock.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26 05:32:55 -04:00
alex.bluesman.smirnov@gmail.com
8deff4af87 6lowpan: clean up fragments list if module unloaded
Clean all the pending fragments and relative timers if 6lowpan link
is going to be deleted.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26 05:32:55 -04:00
alex.bluesman.smirnov@gmail.com
0848e40430 6lowpan: fix segmentation fault caused by mlme request
Add nescesary mlme callbacks to satisfy "iz list" request from user space.
Due to 6lowpan device doesn't have its own phy, mlme implemented as a pipe
to a real phy to which 6lowpan is attached.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26 05:32:55 -04:00
Danny Kukawka
cdf49c283e net/ieee802154/6lowpan.c: reuse eth_mac_addr()
Use eth_mac_addr() for .ndo_set_mac_address, remove
lowpan_set_address since it do currently the same as
eth_mac_addr(). Additional advantage: eth_mac_addr() already
checks if the given address is valid

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-22 14:46:37 -05:00
Herbert Xu
ae641949df net: Remove all uses of LL_ALLOCATED_SPACE
net: Remove all uses of LL_ALLOCATED_SPACE

The macro LL_ALLOCATED_SPACE was ill-conceived.  It applies the
alignment to the sum of needed_headroom and needed_tailroom.  As
the amount that is then reserved for head room is needed_headroom
with alignment, this means that the tail room left may be too small.

This patch replaces all uses of LL_ALLOCATED_SPACE with the macro
LL_RESERVED_SPACE and direct reference to needed_tailroom.

This also fixes the problem with needed_headroom changing between
allocating the skb and reserving the head room.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-18 14:37:09 -05:00
Dan Carpenter
d445ba613f 6LoWPAN: double free in lowpan_fragment_xmit()
dev_queue_xmit() consumes its own skb, so the call to dev_kfree_skb()
in lowpan_fragment_xmit() is a double free.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16 18:13:38 -05:00
alex.bluesman.smirnov@gmail.com
f8b1b5d231 6LoWPAN: UDP header decompression
This patch provides possibility to decompress UDP headers.
Derived from Contiki OS.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:19:43 -05:00
alex.bluesman.smirnov@gmail.com
3bd5b958c2 6LoWPAN: UDP header compression
This patch adds support for UDP header compression.
Derived from Contiki OS.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:19:43 -05:00
alex.bluesman.smirnov@gmail.com
4d039f6843 6LoWPAN: set proper netdev flags
This patch fixes settings for device initialization which makes possible to
use NDISC and TCP.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:19:43 -05:00
alex.bluesman.smirnov@gmail.com
e86586ba8c 6LoWPAN: disable debugging by default
This patch disables debug output enabled by default.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:19:42 -05:00
alex.bluesman.smirnov@gmail.com
719269afbc 6LoWPAN: add fragmentation support
This patch adds support for frame fragmentation.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14 00:19:42 -05:00
Paul Gortmaker
bc3b2d7fb9 net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules
These files are non modular, but need to export symbols using
the macros now living in export.h -- call out the include so
that things won't break when we remove the implicit presence
of module.h from everywhere.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:30:30 -04:00
alex.bluesman.smirnov@gmail.com
dcef115180 6LoWPAN: fix skb_copy call
This patch fixes 2 issues in lowpan_skb_deliver function:
1. Check for return status of skb_copy call;
2. Use skb_copy with proper GFP flag, drop check for non-interrupt
context.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-15 15:36:35 -04:00
Dan Carpenter
dc00fd4441 6LoWPAN: call dev_put() on error in lowpan_newlink()
We should release the dev_hold() on error before returning here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-15 15:36:32 -04:00
Dan Carpenter
aec9db355c 6LoWPAN: use the _safe version of list_for_each
When we kfree(entry) that causes a use-after-free bug so we have to
use list_for_each_entry_safe() safe here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-15 15:36:32 -04:00
Dan Carpenter
90d0963d17 6LoWPAN: use kfree_skb() instead of kfree()
Use kfree_skb() to free sbk_buffs.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-15 15:36:32 -04:00
Alexander Smirnov
44331fe2aa IEEE802.15.4: 6LoWPAN basic support
This patch provides base support for transmission of IPv6 packets as
well as the formation of IPv6 link-local addresses and statelessly
autoconfigured addresses on top of IEEE 802.15.4 networks.

For more information please look at the RFC4944 "Compression Format
for IPv6 Datagrams in Low Power and Losst Networks (6LoWPAN).

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 19:36:06 -07:00
Alexander Smirnov
fa1da8835b ieee802154: free skb buffer if dev isn't running
Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2011-06-30 16:18:09 +04:00
Dmitry Eremin-Solenikov
5fd72607a4 ieee802154: it's IEEE 802.15.4, not ZigBee
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2011-06-30 16:18:09 +04:00
Dmitry Eremin-Solenikov
060e41794e ieee802154: support specifying hw address for created devices
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2011-06-30 16:18:09 +04:00
Jesper Juhl
b9cabe52c2 ieee802154: Don't leak memory in ieee802154_nl_fill_phy
In net/ieee802154/nl-phy.c::ieee802154_nl_fill_phy() I see two small
issues.
1) If the allocation of 'buf' fails we may just as well return -EMSGSIZE
   directly rather than jumping to 'out:' and do a pointless kfree(0).
2) We do not free 'buf' unless we jump to one of the error labels and this
   leaks memory.
This patch should address both.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>
2011-06-13 18:03:22 -04:00
David S. Miller
bfac3693c4 ieee802154: Remove hacked CFLAGS in net/ieee802154/Makefile
It adds -Wall (which the kernel carefully controls already) and of all
things -DDEBUG (which should be set by other means if desired, please
we have dynamic-debug these days).

Kill this noise.

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-12 15:33:23 -07:00
Eric Dumazet
941666c2e3 net: RCU conversion of dev_getbyhwaddr() and arp_ioctl()
Le dimanche 05 décembre 2010 à 09:19 +0100, Eric Dumazet a écrit :

> Hmm..
>
> If somebody can explain why RTNL is held in arp_ioctl() (and therefore
> in arp_req_delete()), we might first remove RTNL use in arp_ioctl() so
> that your patch can be applied.
>
> Right now it is not good, because RTNL wont be necessarly held when you
> are going to call arp_invalidate() ?

While doing this analysis, I found a refcount bug in llc, I'll send a
patch for net-2.6

Meanwhile, here is the patch for net-next-2.6

Your patch then can be applied after mine.

Thanks

[PATCH] net: RCU conversion of dev_getbyhwaddr() and arp_ioctl()

dev_getbyhwaddr() was called under RTNL.

Rename it to dev_getbyhwaddr_rcu() and change all its caller to now use
RCU locking instead of RTNL.

Change arp_ioctl() to use RCU instead of RTNL locking.

Note: this fix a dev refcount bug in llc

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-08 10:07:24 -08:00
Denis Kirjanov
a6c0f8217c ieee802154: Fix possible NULL pointer dereference in wpan_phy_alloc
Check for NULL pointer after kzalloc

Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-23 23:11:07 -07:00
Stefan Schmidt
93c0c8b4a5 ieee802154: Fix oops during ieee802154_sock_ioctl
Trying to run izlisten (from lowpan-tools tests) on a device that does not
exists I got the oops below. The problem is that we are using get_dev_by_name
without checking if we really get a device back. We don't in this case and
writing to dev->type generates this oops.

[Oops code removed by Dmitry Eremin-Solenikov]

If possible this patch should be applied to the current -rc fixes branch.

Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26 11:20:32 -07:00
Linus Torvalds
cb4361c1dc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (37 commits)
  smc91c92_cs: fix the problem of "Unable to find hardware address"
  r8169: clean up my printk uglyness
  net: Hook up cxgb4 to Kconfig and Makefile
  cxgb4: Add main driver file and driver Makefile
  cxgb4: Add remaining driver headers and L2T management
  cxgb4: Add packet queues and packet DMA code
  cxgb4: Add HW and FW support code
  cxgb4: Add register, message, and FW definitions
  netlabel: Fix several rcu_dereference() calls used without RCU read locks
  bonding: fix potential deadlock in bond_uninit()
  net: check the length of the socket address passed to connect(2)
  stmmac: add documentation for the driver.
  stmmac: fix kconfig for crc32 build error
  be2net: fix bug in vlan rx path for big endian architecture
  be2net: fix flashing on big endian architectures
  be2net: fix a bug in flashing the redboot section
  bonding: bond_xmit_roundrobin() fix
  drivers/net: Add missing unlock
  net: gianfar - align BD ring size console messages
  net: gianfar - initialize per-queue statistics
  ...
2010-04-06 08:34:06 -07:00
Changli Gao
6503d96168 net: check the length of the socket address passed to connect(2)
check the length of the socket address passed to connect(2).

Check the length of the socket address passed to connect(2). If the
length is invalid, -EINVAL will be returned.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
----
net/bluetooth/l2cap.c | 3 ++-
net/bluetooth/rfcomm/sock.c | 3 ++-
net/bluetooth/sco.c | 3 ++-
net/can/bcm.c | 3 +++
net/ieee802154/af_ieee802154.c | 3 +++
net/ipv4/af_inet.c | 5 +++++
net/netlink/af_netlink.c | 3 +++
7 files changed, 20 insertions(+), 3 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-01 17:26:01 -07:00
Tejun Heo
5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Octavian Purdila
09ad9bc752 net: use net_eq to compare nets
Generated with the following semantic patch

@@
struct net *n1;
struct net *n2;
@@
- n1 == n2
+ net_eq(n1, n2)

@@
struct net *n1;
struct net *n2;
@@
- n1 != n2
+ !net_eq(n1, n2)

applied over {include,net,drivers/net}.

Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-25 15:14:13 -08:00
David S. Miller
958fc41e32 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan 2009-11-14 20:24:30 -08:00
Dmitry Eremin-Solenikov
282a39546f ieee802154: make wpan-phy class registration to subsys_initcall
Move ieee802154 initialisation to subsys_initcall call, so that
wpan-phy class is initialised before all devices (thus saving us from
oops during bootup).

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-13 00:07:15 +03:00
David S. Miller
10d626f4f4 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan 2009-11-06 17:57:51 -08:00
Dmitry Eremin-Solenikov
bb1cafb8fc ieee802154: add support for creation/removal of logic interfaces
Add support for two more NL802154 commands: ADD_IFACE and DEL_IFACE,
thus allowing creation and removal of logic WPAN interfaces on the top
of wpan-phy.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:32:24 +03:00
Dmitry Eremin-Solenikov
0a868b26c8 ieee802154: add PHY_NAME to LIST_IFACE command results
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:32:22 +03:00
Dmitry Eremin-Solenikov
339b4ca5f6 ieee802154: add two nl802154 helpers
Add two nl802154 helpers: one for starting a reply message, one for sending.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:32:21 +03:00
Dmitry Eremin-Solenikov
1eaa9d03d3 ieee802154: add LIST_PHY command support
Add nl802154 command to get information about PHY's present in
the system.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:31:22 +03:00
Dmitry Eremin-Solenikov
78fe738d1a ieee802154: split away MAC commands implementation
Move all mac-related stuff to separate file so that ieee802154/netlink.c
contains only generic code.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:31:20 +03:00
Dmitry Eremin-Solenikov
cb6b376357 ieee802154: merge nl802154 and wpan-class in single module
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: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:31:18 +03:00
Dmitry Eremin-Solenikov
e9cf356c0c wpan-phy: follow usual patter of devices registration
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: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:29:50 +03:00
Dmitry Eremin-Solenikov
a0b4a738e0 wpan-phy: allow specifying a per-page channel mask
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: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:23:41 +03:00
Dmitry Eremin-Solenikov
375bb0e04b wpan-phy: use snprintf to limit the amount of chars written
Use snprintf to limit the amount of chars put in the buffer for attr -> show.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:13:45 +03:00
Dmitry Eremin-Solenikov
37eb0edc84 wpan-phy: init channel/page fields
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: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:13:22 +03:00
Dmitry Eremin-Solenikov
1c889f4db6 wpan-phy: add wpan-phy iteration functions
Add API to iterate over the wpan-phy instances.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-11-06 14:12:24 +03:00
Eric Paris
3f378b6844 net: pass kern to net_proto_family create function
The generic __sock_create function has a kern argument which allows the
security system to make decisions based on if a socket is being created by
the kernel or by userspace.  This patch passes that flag to the
net_proto_family specific create function, so it can do the same thing.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05 22:18:14 -08:00
Eric Dumazet
766e9037cc net: sk_drops consolidation
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: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-14 20:40:11 -07:00
Neil Horman
3b885787ea net: Generalize socket rx gap / receive queue overflow cmsg
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
977750076d (my af packet cmsg patch) is reverted

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-12 13:26:31 -07:00
Stephen Hemminger
ec1b4cf74c net: mark net_proto_ops as const
All usages of structure net_proto_ops should be declared const.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-07 01:10:46 -07:00
David S. Miller
b7058842c9 net: Make setsockopt() optlen be unsigned.
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: David S. Miller <davem@davemloft.net>
2009-09-30 16:12:20 -07:00
Dmitry Eremin-Solenikov
c4835d81ef ieee802154: add locking for seq numbers
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-09-15 18:25:16 +04:00
Dmitry Eremin-Solenikov
066fc51275 af_ieee802154: setsockopt optlen arg isn't __user
Remove __user annotation from optlen arg as it's bogus.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
2009-09-15 18:25:15 +04:00