If list_for_each_entry, etc complete a traversal of the list, the iterator
variable ends up pointing to an address at an offset from the list head,
and not a meaningful structure. Thus this value should not be used after
the end of the iterator. This seems to be a copy-paste bug from a previous
debugging message, and so the meaningless value is just deleted.
This problem was found using Coccinelle (http://coccinelle.lip6.fr/).
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
dev->priomap is allocated by extend_netdev_table() called from
update_netdev_tables().
And this is only called if write_priomap() is called.
But if write_priomap() is not called, it seems we can have out of bounds
accesses in cgrp_destroy(), read_priomap() & skb_update_prio()
With help from Gao Feng
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some devices (e.g. Sony's PaSoRi) can not do type B polling, so we have
to make a distinction between ISO14443 type A and B poll modes.
Cc: Eric Lapuyade <eric.lapuyade@intel.com>
Cc: Ilan Elias <ilane@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The socket local pointer can be NULL when a socket is created but never
bound or connected.
Reported-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
When receiving such frame, the sockets waiting for a connection to finish
should be woken up. Connecting to an unbound LLCP service will trigger a
DM as a response.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
With the LLCP 16 local SAPs we can potentially quickly run out of source
SAPs for non well known services.
With the so called late binding we will reserve an SAP only when we actually
get a client connection for a local service. The SAP will be released once
the last client is gone, leaving it available to other services.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
With not Well Known Services there is no guarantees as to which
SSAP the server will be listening on, so there is no reason to
support binding to a specific source SAP.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch fixes a typo and return the correct error when trying to
bind 2 sockets to the same service name.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The LLCP SAP should only be freed when the socket owning it is released.
As long as the socket is alive, the SAP should be reserved in order to
e.g. send the right wks array when bringing the MAC up.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
When the MAC link goes down, we should only keep the bound sockets
alive. They will be closed by sock_release or when the underlying
NFC device is moving away.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Drivers will need them before starting a poll or when being activated
as targets. Mostly WKS can have changed between device registration and
then so we need to re-build the whole array.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Some NFC chips will statically create and open pipes for both standard
and proprietary gates. The driver can now pass this information to HCI
such that HCI will not attempt to create and open them, but will instead
directly use the passed pipe ids.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The semantics for a zero target found event is that the polling operation
could not complete.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
There can ever be only one call to nfc_targets_found() after polling
has been engaged. This could be from a target discovered event from
the driver, or from an error handler to notify poll will never complete.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
If there is an ongoing HCI command executing, it will be completed,
thereby pushing the error up to the core. Otherwise, HCI will directly
notify the core with the error.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
HCI cmd can be completed either from an HCI response or from an
internal driver or HCI error. This requires to factorize the
completion code outside of the device lock.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This API should be used by drivers, HCI, SHDLC or NCI stacks to report an
unrecoverable error.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
An HCI command can complete either from an HCI response
(with an HCI result) or as a consequence of any other system
error during processing. The completion therefore needs to take
a standard errno code. The HCI response will convert its result
to a standard errno before calling the completion.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
shdlc reset may leave HCI in an inconsistent state by loosing parts of
HCI frames. Handle this case by reporting an unrecoverable error to HCI.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The questions asked in the comments have been answered and addressed.
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
If association failed due to internal error (e.g. no
supported rates IE), we call ieee80211_destroy_assoc_data()
with assoc=true, while we actually reject the association.
This results in the BSSID not being zeroed out.
After passing assoc=false, we no longer have to call
sta_info_destroy_addr() explicitly. While on it, move
the "associated" message after the assoc_success check.
Cc: stable@vger.kernel.org [3.4+]
Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
msp has type struct minstrel_ht_sta_priv not struct minstrel_ht_sta.
(This incorporates the fixup originally posted as "mac80211: fix kzalloc
memory corruption introduced in minstrel_ht". -- JWL)
Reported-by: Fengguang Wu <wfg@linux.intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The management frame and remain-on-channel APIs will be
needed in the P2P device abstraction, so move them over
to the new wdev-based APIs. Userspace can still use both
the interface index and wdev identifier for them so it's
backward compatible, but for the P2P Device wdev it will
be able to use the wdev identifier only.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There are a few places that iterate the wdev
list and assume wdev->netdev exists, check
there. The rfkill one has to be extended for
each non-netdev type later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since soon there will be virtual interfaces that
don't have a netdev, use the wdev identifier for
the API to retrieve interface data.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Some nl80211 callbacks will soon need the wdev instead
of the netdev, so add NL80211_FLAG_NEED_WDEV to allow
them to request that. Add NL80211_FLAG_NEED_WDEV_UP as
well which checks the netdev is UP if one exists.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In order to support a P2P device abstraction and
Bluetooth high-speed AMPs, we need to have a way
to identify virtual interfaces that don't have a
netdev associated.
Do this by adding a NL80211_ATTR_WDEV attribute
to identify a wdev which may or may not also be
a netdev.
To simplify things, use a 64-bit value with the
high 32 bits being the wiphy index for this new
wdev identifier in the nl80211 API.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This API call was intended to be used by drivers
if they want to optimize key handling by removing
one key when another is added. Remove it since no
driver is using it. If needed, it can always be
added back.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
ieee80211_mlme_notify_scan_completed() iterates all
interfaces and doesn't need to assign anything to
the sdata variable before the loop.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When the AC parameters change, drivers might rely
on getting a bss_info_changed notification with
BSS_CHANGED_QOS in addition to the conf_tx call.
Always call the function when userspace updates
are made (in AP/GO modes) and also set the change
flag when updates were made by the AP (in managed
mode.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Pablo Neira Ayuso says:
====================
* One to get the timeout special parameter for the SET target back working
(this was introduced while trying to fix another bug in 3.4) from
Jozsef Kadlecsik.
* One crash fix if containers and nf_conntrack are used reported by Hans
Schillstrom by myself.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
we set max_prioidx to the first zero bit index of prioidx_map in
function get_prioidx.
So when we delete the low index netprio cgroup and adding a new
netprio cgroup again,the max_prioidx will be set to the low index.
when we set the high index cgroup's net_prio.ifpriomap,the function
write_priomap will call update_netdev_tables to alloc memory which
size is sizeof(struct netprio_map) + sizeof(u32) * (max_prioidx + 1),
so the size of array that map->priomap point to is max_prioidx +1,
which is low than what we actually need.
fix this by adding check in get_prioidx,only set max_prioidx when
max_prioidx low than the new prioidx.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
