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* Bluetooth: Convert pend_le_conn list to a generic action listJohan Hedberg2014-07-04
| | | | | | | | | | | In preparation to store also HCI_AUTO_CONN_REPORT entries in a list it makes sense to convert the existing pend_le_conn list head of hci_conn_params into a more generically named "action". This makes sense because a parameter entry will never participate in more than one action list. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add support for controller configuration info commandMarcel Holtmann2014-07-04
| | | | | | | | | The Read Controller Configuration Information command allows retrieving details about possible configurations option. The supported options are returned and also the missing options (if any). Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Use hci_conn_params in pend_le_connsJohan Hedberg2014-07-03
| | | | | | | | | | | Since the connection parameters are always a basis for adding entries to hdev->pend_le_conns (so far of type bdaddr_list) it's simpler and more efficient to have the parameters themselves be the entries in the pend_le_conns list. We do this by adding another list_head to the hci_conn_params struct. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Track number of added devices with HCI_AUTO_CONN_REPORTJohan Hedberg2014-07-03
| | | | | | | | | | | To be able to make the right choice of whether to start passive scanning or to send out a mgmt_device_found event we need to know if there are any devices in the le_conn_params list with the auto_connect value set to HCI_AUTO_CONN_REPORT. This patch adds a counter for this kind of devices. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add support for Read Unconfigured Index List commandMarcel Holtmann2014-07-03
| | | | | | | | This command allows to get the list of currently known controller that are in unconfigured state. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Add support for Unconfigured Index Removed eventsMarcel Holtmann2014-07-03
| | | | | | | | When a controller in an unconfigured state gets removed, then send Unconfigured Index Removed events. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Add support for Unconfigured Index Added eventsMarcel Holtmann2014-07-03
| | | | | | | | | | When a controller is in unconfigured state it is currently hidden from the management interface. This change now announces the new controller with an Unconfigured Index Added event and allows clients to easily detect the controller. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Introduce unconfigured controller stateMarcel Holtmann2014-07-03
| | | | | | | | | | | | | | | | With the new unconfigured controller state it is possible to provide a fully functional HCI transport, but disable the higher level operations that would normally happen. This way userspace can try to configure the controller before releases the unconfigured state. The internal state is represented by HCI_UNCONFIGURED. This replaces the HCI_QUIRK_RAW_DEVICE quirk as internal state representation. This is now a real state and drivers can use the quirk to actually trigger this state. In the future this will allow a more fine grained switching from unconfigured state to configured state for controller inititialization. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Make is_identity_address a global functionJohan Hedberg2014-07-03
| | | | | | | | | There are more places that can take advantage of is_identity_address() besides hci_core.c. This patch moves the function to hci_core.h and gives it the appropriate hci_ prefix. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Pass store hint to mgmt_new_conn_paramJohan Hedberg2014-07-03
| | | | | | | | | | The calling functions of mgmt_new_conn_param have more information about the parameters, such as whether the kernel is tracking them or not. It makes therefore sense to have them pass an initial store_hint value to the mgmt_new_conn_param function. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Make hci_le_conn_update return the store hintJohan Hedberg2014-07-03
| | | | | | | | | | | The caller of hci_le_conn_update is directly interested in knowing what the best value is for the store_hint parameter of the corresponding mgmt event. Since hci_le_conn_update knows whether there were stored parameters that were updated or not we can have it return an initial store_hint value to the caller. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add Load Connection Parameters commandJohan Hedberg2014-07-03
| | | | | | | | | This patch implements the new Load Connection Parameters mgmt command that's intended to load the desired connection parameters for LE devices. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add new auto_conn value matching mgmt action 0x00Johan Hedberg2014-07-03
| | | | | | | | | The 0x00 action value of mgmt means "scan and report" but do not connect. This is different from HCI_AUTO_CONN_DISABLED so we need a new value for it. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add specific connection parameter clear functionsJohan Hedberg2014-07-03
| | | | | | | | | In some circumstances we'll need to either clear only the enabled parameters or only the disabled ones. This patch adds convenience functions for this purpose. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Rename hci_conn_params_clear to hci_conn_params_clear_allJohan Hedberg2014-07-03
| | | | | | | | | We'll soon have specific clear functions for clearing enabled or disabled entries, so rename the function that removes everything to clear_all(). Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add support for hdev->set_bdaddr callback handlingMarcel Holtmann2014-07-03
| | | | | | | | | Some embedded controllers allow the programming of a public address and this adds vendor support for supporting OEM confguration of such addresses. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Introduce "New Connection Parameter" EventAndre Guedes2014-07-03
| | | | | | | | | | | | | | | | | This patch introduces a new Mgmt event called "New Connection Parameter". This event indicates to userspace the connection parameters values the remote device requested. The user may store these values and load them into kernel. This way, next time a connection is established to that device, the kernel will use those parameters values instead of the default ones. This event is sent when the remote device requests new connection parameters through connection parameter update procedure. This event is not sent for slave connections. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Enable new LE meta eventAndre Guedes2014-07-03
| | | | | | | | | | The Bluetooth 4.1 introduces a new LE meta event called "LE Remote Connection Parameter Request" event. In order to the controller sends this event to host, we should enable it during controller initialization. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Connection Parameter Update ProcedureAndre Guedes2014-07-03
| | | | | | | | | | | | | | | This patch adds support for LE Connection Parameters Request Link Layer control procedure introduced in Core spec 4.1. This procedure allows a Peripheral or Central to update the Link Layer connection parameters of an established connection. Regarding the acceptance of connection parameters, the LL procedure follows the same approach of L2CAP procedure (see l2cap_conn_param_ update_req function). We accept any connection parameters values as long as they are within the valid range. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Fix redundant device (un)blocked eventsJohan Hedberg2014-07-03
| | | | | | | | | | | | | | | | | | | | For the Block/Unblock Device mgmt commands we should only emit the Blocked/Unblocked events on any socket except for the one which received the command. The code was previously incorrectly trying to look up a non-existent pending command and thereby ending up not skipping the command socket for the event. We can simplify the code a lot by simply sending the event directly from the command handler functions. We have the reference to the command socket available there which makes it easy to pass to the mgmt_event function for skipping. The only notable side-effect of this is that the old blacklisting ioctl's no-longer cause mgmt events to be emitted, however as user space versions using these ioctl's are not mgmt-aware this is acceptable. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add flag to track STK encryptionJohan Hedberg2014-07-03
| | | | | | | | | | There are certain subtle differences in behavior when we're encrypted with the STK, such as allowing re-encryption even though the security level stays the same. Because of this, add a flag to track whether we're encrypted with an STK or not. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add support for Not Connectable flag for Device Found eventsMarcel Holtmann2014-07-03
| | | | | | | | | | | The Device Found events of the management interface should indicate if it is possible to connect to a remote device or if it is broadcaster only advertising. To allow this differentation the Not Connectable flag is introduced that will be set when it is known that a device can not be connected. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Provide flags parameter direct to mgmt_device_foundMarcel Holtmann2014-07-03
| | | | | | | | | | | | | Providing the flags parameter directly to mgmt_device_found function makes the core simpler and more readable. With this it becomes a lot easier to add new flags in the future. This also changes hci_inquiry_cache_update to just return that flags needed for mgmt_device_found since that is its only use for the two return parameters anyway. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Remove connection interval parameters from hci_conn_params_setMarcel Holtmann2014-07-03
| | | | | | | | | | The connection interval parameter of hci_conn_params_set are always used with the controller defaults. So just let hci_conn_params_add set the controller default and not bother resetting them to controller defaults every time the hci_conn_params_set is called. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Change hci_conn_params_add to return the parameter structMarcel Holtmann2014-07-03
| | | | | | | | When adding new connection parameters, it is useful to return either the existing struct or the newly created one. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Connection parameters check helperAndre Guedes2014-07-03
| | | | | | | | | This patch renames l2cap_check_conn_param() to hci_check_conn_params() and moves it to hci_core.h so it can reused in others files. This helper will be reused in the next patch. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Provide function to create and set connection parametersMarcel Holtmann2014-07-03
| | | | | | | | | | | In some cases it is useful to not overwrite connection parametes and instead just create default ones if they don't exist. This function does exactly that. hci_conn_params_add will allow to create new default connection parameters. hci_conn_params_set will set the values and also create new parameters if they don't exist. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Provide defaults for LE connection latency and timeoutMarcel Holtmann2014-07-03
| | | | | | | | | Store the connection latency and supervision timeout default values with all the other controller defaults. And when needed use them for new connections. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Add Device Added and Device Removed management eventsMarcel Holtmann2014-07-03
| | | | | | | | | | When devices are added or removed, then make sure that events are send out to all other clients so that the list of devices can be easily tracked. This is especially important when external clients are adding or removing devices within the auto-connection list. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Add support for Add/Remove Device management commandsMarcel Holtmann2014-07-03
| | | | | | | | | | | | This allows adding or removing devices from the background scanning list the kernel maintains. Device flagged for auto-connection will be automatically connected if they are found. The passive scanning required for auto-connection will be started and stopped on demand. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Store latency and supervision timeout in connection paramsMarcel Holtmann2014-07-03
| | | | | | | | | | | | | When the slave updates the connection parameters, store also the connection latency and supervision timeout information in the internal list of connection parameters for known devices. Having these values available allowes the auto-connection procedure to use the correct values from the beginning without having to request an update on every connection establishment. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Add support for Get Clock Info mgmt commandJohan Hedberg2014-07-03
| | | | | | | | | | This patch implements support for the Get Clock Information mgmt command. This is done by performing one or two HCI_Read_Clock commands and creating the response from the stored values in the hci_dev and hci_conn structs. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add tracking of local and piconet clock valuesJohan Hedberg2014-07-03
| | | | | | | | | | This patch adds support for storing the local and piconet clock values from the HCI_Read_Clock command response to the hci_dev and hci_conn structs. This will be later used in another patch to implement support for the Get Clock Info mgmt command. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Send HCI_Read_Clock_Offset before disconnectingMarcel Holtmann2014-07-03
| | | | | | | | | | When the connection is in master role and it is going to be disconnected based on the disconnection timeout, then send the HCI_Read_Clock_Offset command in an attempt to update the clock offset value in the inquiry cache. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Remove unnecessary hcon->smp_conn variableJohan Hedberg2014-07-03
| | | | | | | | | | | The smp_conn member of struct hci_conn was simply a pointer to the l2cap_conn object. Since we already have hcon->l2cap_data that points to the same thing there's no need to have this second variable. This patch removes it and changes the single place that was using it to use hcon->l2cap_data instead. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Use macro instead of hard-coded valueAndre Guedes2014-07-03
| | | | | | | | This patch replaces the hard-coded value in hci_bdaddr_is_rpa() helper by the corresponding macro ADDR_LE_DEV_RANDOM. Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Convert hci_conn->link_mode into flagsJohan Hedberg2014-07-03
| | | | | | | | | | | | Since the link_mode member of the hci_conn struct is a bit field and we already have a flags member as well it makes sense to merge these two together. This patch moves all used link_mode bits into corresponding flags. To keep backwards compatibility with user space we still need to provide a get_link_mode() helper function for the ioctl's that expect a link_mode style value. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Add a new HCI_USE_DEBUG_KEYS flagJohan Hedberg2014-07-03
| | | | | | | | | | | To pave the way for actively using debug keys for pairing this patch adds a new HCI_USE_DEBUG_KEYS flag for the purpose. When the flag is set we issue a HCI_Write_SSP_Debug mode whenever HCI_Write_SSP_Mode(0x01) has been issued as well as before issuing a HCI_Write_SSP_Mode(0x00) command. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Convert hcon->flush_key to a proper flagJohan Hedberg2014-07-03
| | | | | | | | | There's no point in having boolean variables in the hci_conn struct since it already has a flags member. This patch converts the flush_key member into a proper flag. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Rename HCI_DEBUG_KEYS to HCI_KEEP_DEBUG_KEYSJohan Hedberg2014-07-03
| | | | | | | | | | | We're planning to add a flag to actively use debug keys in addition to simply just accepting them, which makes the current generically named DEBUG_KEYS flag a bit confusing. Since the flag in practice affects whether the kernel keeps debug keys around or not rename it to HCI_KEEP_DEBUG_KEYS. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Move mgmt event sending out from hci_add_link_key()Johan Hedberg2014-07-03
| | | | | | | | | | | | | | | There are two callers of hci_add_link_key(). The first one is the HCI Link Key Notification event and the second one the mgmt code that receives a list of link keys from user space. Previously we've had the hci_add_link_key() function being responsible for also emitting a mgmt signal but for the latter use case this should not happen. Because of this a rather awkward new_key paramter has been passed to the function. This patch moves the mgmt event sending out from the hci_add_link_key() function, thereby making the code a bit more understandable. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Update hci_add_link_key() to return pointer to keyJohan Hedberg2014-07-03
| | | | | | | | | | By returning the added (or updated) key we pave the way for further refactoring (in subsequent patches) that allows moving the mgmt event sending out from this function (and thereby removal of the awkward new_key parameter). Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Track LE connection parameter update eventMarcel Holtmann2014-07-03
| | | | | | | | | | When the LE controller changes its connection parameters, it will send a connection parameter update event. Make sure that the new set of parameters are stored in hci_conn struct and thus will properly update the previous values retrieved from the connection complete event. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Store current LE connection parameters in hci_conn structMarcel Holtmann2014-07-03
| | | | | | | | | | The LE connection parameters are needed later on to be able to decide if it is required to trigger connection update procedures. So when the connection has been established successfully, store the current used parameters in hci_conn struct. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: 6LoWPAN: Use connected oriented channel instead of fixed oneJukka Rissanen2014-07-03
| | | | | | | | Create a CoC dynamically instead of one fixed channel for communication to peer devices. Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Provide L2CAP ops callback for memcpy_fromiovecJukka Rissanen2014-07-03
| | | | | | | | | | | | | | | | | | | The highly optimized TX path for L2CAP channels and its fragmentation within the HCI ACL packets requires to copy data from user provided IO vectors and also kernel provided memory buffers. This patch allows channel clients to provide a memcpy_fromiovec callback to keep this optimized behavior, but adapt it to kernel vs user memory for the TX path. For all kernel internal L2CAP channels, a default implementation is provided that can be referenced. In case of A2MP, this fixes a long-standing issue with wrongly accessing kernel memory as user memory. This patch originally by Marcel Holtmann. Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Use separate dbg_flags to special debugfs optionsMarcel Holtmann2014-07-03
| | | | | | | | | All the special settings configured via debugfs are either developer only options or temporary solutions. To not clutter the standard flags, move them to their own dbg_flags entry. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
* Bluetooth: Remove unused LTK authentication definesJohan Hedberg2014-07-03
| | | | | | | | | These defines were probably put in to track authenticated vs unauthenticated LTKs, however since the LTK struct has a separate boolean authenticated member these were never used. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Remove HCI prefix from SMP LTK definesJohan Hedberg2014-07-03
| | | | | | | | | The LTK type has really nothing to do with HCI so it makes more sense to have these in smp.h than hci.h. This patch moves the defines to smp.h and removes the HCI_ prefix in the same go. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Bluetooth: Remove unnecessary SMP STK defineJohan Hedberg2014-07-03
| | | | | | | | | | We never store the "master" type of STKs since we request encryption directly with them so we only need one STK type (the one that's looked-up on the slave side). Simply remove the unnecessary define and rename the _SLAVE one to the shorter form. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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