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ieee80211_rx_h_check returned RX_DROP_MONITOR in case the if statement
in question was true but the same return value is also used directly
after the if clause. Hence, we can just drop the whole if clause and as
such simplify the code.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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My previous patch to optimize scanning on operating channel
accidentally removed the code that would ensure power was
set to maximum for scanning.
This patch re-adds that functionality.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Narrow channel types can function within larger channel types.
So, use existing channel type for work items when possible.
This decreases hardware channel changes significantly when
using non NO_HT channel types on the operating channel.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Previous code set the channel type to NO_HT, but it
appears that NO_HT packets can be sent on any channel
type, so we do not need to change the channel type
as long as the channel is correct.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Some were indirectly set to NO_HT (zero), but I think
it's better to explicitly set it in case the enum ever
changes. In cfg.c, it seems the channel-type was just
ignored (and thus always set to NO_HT).
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Change hcid to bluetoothd.
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Also moves some L2CAP sending functions declaration to l2cap.h
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Declare __l2cap_wait_ack() and l2cap_sock_clear_timer() in l2cap.h
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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It causes the move of the declaration of 3 functions to l2cap.h:
l2cap_get_ident(), l2cap_send_cmd(), l2cap_build_conf_req()
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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First step to move all l2cap_sock_ops function to l2cap_sock.c
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch tries to do the minimal to move l2cap_sock_create() and its
dependencies to l2cap_sock.c. It create a API to initialize and cleanup
the L2CAP sockets from l2cap_core.c through l2cap_init_sockets() and
l2cap_cleanup_sockets().
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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In a preparation to the the L2CAP code split in many files.
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Crash can happen when tasklet handling connect/disconnect requests
preempts socket accept. Can be reproduced with "l2test -r" on one
side and several "l2test -c -b 1000 -i hci0 -P 10 <bdaddr>" on the
other side.
disable taskets in socket accept and change lock_sock and release_sock
to bh_lock_sock and bh_unlock_sock since we have to use spinlocks and
there is no need to mark sock as owned by user.
...
[ 3555.897247] Unable to handle kernel NULL pointer dereference at virtual
address 000000bc
[ 3555.915039] pgd = cab9c000
[ 3555.917785] [000000bc] *pgd=8bf3d031, *pte=00000000, *ppte=00000000
[ 3555.928314] Internal error: Oops: 17 [#1] PREEMPT
[ 3555.999786] CPU: 0 Not tainted (2.6.32.21-13874-g67918ef #65)
...
[ 3556.005981] PC is at bt_accept_unlink+0x20/0x58 [bluetooth]
[ 3556.011627] LR is at bt_accept_dequeue+0x3c/0xe8 [bluetooth]
...
[ 3556.161285] [<bf0007fc>] (bt_accept_unlink+0x20/0x58 [bluetooth]) from
[<bf000870>] (bt_accept_dequeue+0x3c/0xe8 [bluetooth])
[ 3556.172729] [<bf000870>] (bt_accept_dequeue+0x3c/0xe8 [bluetooth]) from
[<bf324df8>] (l2cap_sock_accept+0x100/0x15c [l2cap])
[ 3556.184082] [<bf324df8>] (l2cap_sock_accept+0x100/0x15c [l2cap]) from
[<c026a0a8>] (sys_accept4+0x120/0x1e0)
[ 3556.193969] [<c026a0a8>] (sys_accept4+0x120/0x1e0) from [<c002c9a0>]
(ret_fast_syscall+0x0/0x2c)
[ 3556.202819] Code: e5813000 e5901164 e580c160 e580c15c (e1d13bbc)
...
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Fix checkpatch warnings concerning assignments in if conditions.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds a new set_io_capability management command which is used
to set the IO capability for Secure Simple Pairing (SSP) as well as the
Security Manager Protocol (SMP). The value is per hci_dev and each
hci_conn object inherits it upon creation.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds the necessary commands and events needed to communicate
PIN code related actions between the kernel and userspace. This includes
a pin_code_request event as well as pin_code_reply and
pin_code_negative_reply commands.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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A lot of management code needs to generate command complete events so it
makes sense to have a helper function for this.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds a get_connections command to the management interface.
With this command userspace can get the current list of connected
devices. Typically this command would only be used once when enumerating
existing adapters. After that the connected and disconnected events are
used to track connections.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch add a new connect failed management event to track failures
in connecting to remote devices. It is particularly useful for security
mode 3 scenarios when we don't have a connected state while pairing but
still need to detect when the connect attempt failed.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds a disconnect command to the managment interface. Using
this command user space is able to force the disconnection of connected
devices. The command maps directly to the Disconnect HCI command.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds connected and disconnected managment events to track the
connection status to remote devices. The events map directly to
successful connection complete and disconnection complete HCI events for
ACL links.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds a management commands to feed the kernel with all stored
link keys as well as remove specific ones or all of them. Once the
load_keys command has been called the kernel takes over link key
replies. A new_key event is also added to inform userspace of newly
created link keys that should be stored permanently.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds the possibility for user space to fully control the
Class of Device value of local adapters. To control the service class
bits each UUID that's added comes with a service class "hint" which acts
as a mask of bits that the UUID needs to have enabled. The
set_service_cache management command is used to make sure we queue up
all UUID changes as user space initializes its drivers and then send a
single HCI_Write_Class_of_Device command when initialization is
complete.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Using the managment interface means that user space doesn't need to do
any HCI command sending at all. This patch moves the remaining
initialization commands from user space to the kernel side. The patch
makes use of the new feature of __hci_request which allows the request
to be dynamically modified while it is ongoing (something that is needed
to react appropriately to the local features and the version of the
adapter).
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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User space should set the page timeout so there's no need to explicitly
set it in the HCI init sequence. Even if user space fails to set it the
controller default value will be used.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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The controller may have link keys in its own memory and these keys could
be used for secure connections. However, since the interface to access
these keys doesn't provide information about the key types (which would
be needed to infer the level of security each key provides) using these
keys is rather useless. Therefore, simply clear the controller side list
in the initialization procedure.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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To support a more dynamic HCI initialization sequence the __hci_request
behavior requires some more changes. Particularly, the init sequence
should be able to have conditionals in it (sending some HCI commands
depending on the outcome of a previous command) instead of being a fixed
list as it is right now.
The reasons for these additional requirements are the moving all
previously user space driven initialization commands to the kernel side
as well as the support the Low Energy controllers.
To fulfull these requirements the init sequence is made the only special
case for multi-command requests and req_last_cmd is renamed to
init_last_cmd. The hci_send_cmd function is changed to update
init_last_cmd as long as the HCI_INIT flag is set.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds the necessary logic to act accordingly when the
HCI_PAIRABLE flag is not set. In that case PIN code replies as well as
Secure Simple Pairing requests without a NoBonding requirement need to
be rejected.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds a debugfs entry to list the UUIDs that have been
registered through the management interface.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds methods to the management interface for userspace to
notify the kernel of which services have been registered for specific
adapters. This information is needed for setting the appropriate Class
of Device value as well as the Extended Inquiry Response value. This
patch doesn't actually implement setting of these values but just
provides the storage of the UUIDs so the needed functionality can be
built on top of it.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch implements a new set_pairable management command to control
the pairable state of local adapters. The state is represented using a
new HCI_PAIRABLE flag in the hci_dev struct.
For backwards compatibility with older user space versions the
HCI_PAIRABLE flag gets automatically set when the existence of an
adapter is reported to user space through legacy methods and the
HCI_MGMT flag is not set.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Several management commands have similar responses but they are not
always sent asynchronously. To enable synchronous sending (from the
managment command handler function) a send_mode_rsp function is added.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds a HCI_MGMT flag to track adapters which are under the
control of the management interface. This is needed to make sure that
new kernels will work with old user space versions. I.e. behaviour which
could break old user space versions (but is needed by the management
interface) should not be exhibited when the HCI_MGMT flag is not set.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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The powered, connectable and discoverable messages all have the same
format. By using a single struct for all of them a lot of code can be
simplified and reused.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds a set_connectable command as well as a corresponding
event to the management interface. It's mainly useful for setting an
adapter as connectable from a non-initialized state as well as setting
an already initialized adapter as non-connectable (mostly useful for
qualification purposes).
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds a set_discoverable command to the management interface
as well as the corresponding event. The command is used to control the
discoverable state of adapters.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds a set_powered command to the management interface
through which the powered state of local adapters can be controlled.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch adds support for the powered event that's used to indicate to
userspace when the powered state of a local adapter changes.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This patch implements automatic initialization of basic information
about newly registered Bluetooth adapters. E.g. the address and features
are always needed so it makes sense for the kernel to automatically
power on adapters and read this information. A new HCI_SETUP flag is
added to track this state.
In order to not consume unnecessary amounts of power if there isn't a
user space available that could switch the adapter back off, a timer is
added to do this automatically as long as no Bluetooth user space seems
to be present. A new HCI_AUTO_OFF flag is added that user space needs to
clear to avoid the automatic power off.
Additionally, the management interface index_added event is moved to the
end of the HCI_SETUP stage so a user space supporting the managment
inteface has all the necessary information available for fetching when
it gets notified of a new adapter. The HCI_DEV_REG event is kept in the
same place as before since existing HCI raw socket based user space
versions depend on seeing the kernels initialization sequence
(hci_init_req) to determine when the adapter is ready for use.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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The desired MTU should be sent in an Config_Req for all modes.
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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