UI frames still need to follow the MIU rule, and they need to use the
client passed dsap as the listening socket dsap is stuck on SDP.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
When DEP goes down, bound cl sockets can be kept alive as there is no
reason to kill a connection less server socket because the LLCP link
went down.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Replying to an SNL (Service Name Lookup) means that the other end of
the link can now rely on our answer (Which is an ssap) and thus we have
to reserve it.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Return code from nfc_hci_execute_cmd was not propagated to caller.
Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Check for error and return if any. This makes it easier to see what is
a 'positive' function flow.
Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
There is no need for return statement at the end of function returning
void.
Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
No need for local rc variable as result of nci_request can be returned
directly.
Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
local_gb is of size NFC_MAX_GT_LEN and len is used as index for it.
Check len against this instead of NCI_MAX_PARAM_LEN before accessing
local_gb.
Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
rf_mode is now set to NFC_RF_NONE when a device gets allocated,
when the link goes down, and when stop polling.
Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
SNL (Service Name Lookup) allows for LLCP peers to map service names with
SAPs. This is mandatory for connection less support as peers need to get
the right SAPs without sending the CONNECT frame.
Here we only support the Rx part of SNL. The Tx one will be implemented
when supporting connection less LLCP sockets.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
SNL (Service Name Lookup) frames are used to respond to SNL requests.
This is needed for SDP implementation.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
In some cases (SNL, DISC, DM) we need to send an LLCP skbs without
having a sock owning it. I frames are an exception here since
they may be requeued to the llcp_sock queue.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
When the driver does not support checking the tag is still present, it
must return -EOPNOTSUPP. The NFC Core will then stop asking and not
report a tag lost event to user space.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
We need to send continue activation command to allow NFCIP-1
activation when a NFC target has been discovered in type A or
type F reader gate.
Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Depending on the driver, a lot of setup may be
necessary to start operating as an AP, some of
which may fail. Add an explicit AP start driver
method to make such failures easier to handle,
and add an AP stop driver method for symmetry.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since cfg80211 will now call the explicit stop_ap
operation when an AP interface goes down, move all
teardown code there and remove it from interface
handling. The only thing that needs to stay is the
code to dev_close() all dependent VLANs.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The cgroup logic part of net_cls is very similar as the one in
net_prio. Let's stream line the net_cls logic with the net_prio one.
The net_prio update logic was changed by following commit (note there
were some changes necessary later on)
commit 406a3c638c
Author: John Fastabend <john.r.fastabend@intel.com>
Date: Fri Jul 20 10:39:25 2012 +0000
net: netprio_cgroup: rework update socket logic
Instead of updating the sk_cgrp_prioidx struct field on every send
this only updates the field when a task is moved via cgroup
infrastructure.
This allows sockets that may be used by a kernel worker thread
to be managed. For example in the iscsi case today a user can
put iscsid in a netprio cgroup and control traffic will be sent
with the correct sk_cgrp_prioidx value set but as soon as data
is sent the kernel worker thread isssues a send and sk_cgrp_prioidx
is updated with the kernel worker threads value which is the
default case.
It seems more correct to only update the field when the user
explicitly sets it via control group infrastructure. This allows
the users to manage sockets that may be used with other threads.
Since classid is now updated when the task is moved between the
cgroups, we don't have to call sock_update_classid() from various
places to ensure we always using the latest classid value.
[v2: Use iterate_fd() instead of open coding]
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Cc: Li Zefan <lizefan@huawei.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Joe Perches <joe@perches.com>
Cc: John Fastabend <john.r.fastabend@intel.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: <netdev@vger.kernel.org>
Cc: <cgroups@vger.kernel.org>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently sctp allows for the optional use of md5 of sha1 hmac algorithms to
generate cookie values when establishing new connections via two build time
config options. Theres no real reason to make this a static selection. We can
add a sysctl that allows for the dynamic selection of these algorithms at run
time, with the default value determined by the corresponding crypto library
availability.
This comes in handy when, for example running a system in FIPS mode, where use
of md5 is disallowed, but SHA1 is permitted.
Note: This new sysctl has no corresponding socket option to select the cookie
hmac algorithm. I chose not to implement that intentionally, as RFC 6458
contains no option for this value, and I opted not to pollute the socket option
namespace.
Change notes:
v2)
* Updated subject to have the proper sctp prefix as per Dave M.
* Replaced deafult selection options with new options that allow
developers to explicitly select available hmac algs at build time
as per suggestion by Vlad Y.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Vlad Yasevich <vyasevich@gmail.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: netdev@vger.kernel.org
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This tiny patch removes two unused err assignments. In those two cases the
err variable is either overwritten with another value at a later point in
time without having read the previous assigment, or it is assigned and the
function returns without using/reading err after the assignment.
Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Per IEEE Std. 802.11-2012, Sec 8.2.4.4.1, the sequence Control field is
not present in control frames. We noticed this problem when processing
Block Ack Requests.
Cc: stable@vger.kernel.org
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Javier Lopez <jlopex@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
For a local variable there's no need to use the atomic
set_bit() operation, use __set_bit() instead.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Prior this fix, those frames were not received, nor forwarded. Fix
this to receive and not forward.
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Remove a duplicate check in ieee80211_rx_mgmt_beacon,
there is no need to make again the same check for the
IEEE80211_HW_PS_NULLFUNC_STACK twice; the two ifs can
be consolidated.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
[reword commit message & break long lines and also
clean up variable]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Commit a02e4b7dae4551(Demark default hoplimit as zero) only changes the
hoplimit checking condition and default value in ip6_dst_hoplimit, not
zeros all hoplimit default value.
Keep the zeroing ip6_template_metrics[RTAX_HOPLIMIT - 1] to force it as
const, cause as a37e6e344910(net: force dst_default_metrics to const
section)
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ceph_on_in_msg_alloc() method drops con->mutex while it allocates a
message. If that races with a timeout that resends a zillion messages and
resets the connection, and the ->alloc_msg() method returns a NULL message,
it will call ceph_msg_put(NULL) and BUG.
Fix by only calling put if msg is non-NULL.
Fixes http://tracker.newdream.net/issues/3142
Signed-off-by: Sage Weil <sage@inktank.com>
Instead of the current whitelist which accepts duplicates
only for the quiet and vendor IEs, use a blacklist of all
IEs (that we currently parse) that can't be duplicated.
This avoids detecting a beacon as corrupt in the future
when new IEs are added that can be duplicated.
Cc: stable@vger.kernel.org
Signed-off-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Chris Perl reports that we're seeing races between the wakeup call in
xs_error_report and the connect attempts. Basically, Chris has shown
that in certain circumstances, the call to xs_error_report causes the
rpc_task that is responsible for reconnecting to wake up early, thus
triggering a disconnect and retry.
Since the sk->sk_error_report() calls in the socket layer are always
followed by a tcp_done() in the cases where we care about waking up
the rpc_tasks, just let the state_change callbacks take responsibility
for those wake ups.
Reported-by: Chris Perl <chris.perl@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Tested-by: Chris Perl <chris.perl@gmail.com>
The call to xprt_disconnect_done() that is triggered by a successful
connection reset will trigger another automatic wakeup of all tasks
on the xprt->pending rpc_wait_queue. In particular it will cause an
early wake up of the task that called xprt_connect().
All we really want to do here is clear all the socket-specific state
flags, so we split that functionality out of xs_sock_mark_closed()
into a helper that can be called by xs_abort_connection()
Reported-by: Chris Perl <chris.perl@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Tested-by: Chris Perl <chris.perl@gmail.com>
This reverts commit 55420c24a0.
Now that we clear the connected flag when entering TCP_CLOSE_WAIT,
the deadlock described in this commit is no longer possible.
Instead, the resulting call to xs_tcp_shutdown() can interfere
with pending reconnection attempts.
Reported-by: Chris Perl <chris.perl@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Tested-by: Chris Perl <chris.perl@gmail.com>
le_init() and bredr_init() are now called le_setup() and bredr_setup() to
avoid duplicates names over the tree even if they are all static.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This patch adds the reading of the LE advertising channel TX power to
the HCI init sequence of LE-capable controllers. This data will be used
e.g. for inclusion in the advertising data packets when advertising is
enabled.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
