From: Marcel Holtmann <[email protected]>
The usage of __hci_cmd_sync() within the hdev->setup() callback allows for
a nice and simple serialized execution of HCI commands. More importantly
it allows for result processing before issueing the next command.
With the current usage of hci_req_run() it is possible to batch up
commands and execute them, but it is impossible to react to their
results or errors.
This is an attempt to generalize the hdev->setup() handling and provide
a simple way of running multiple HCI commands from a single function
context.
There are multiple struct work that are decdicated to certain tasks
already used right now. It is add a lot of bloat to hci_dev struct and
extra handling code. So it might be possible to put all of these behind
a common HCI command infrastructure and just execute the HCI commands
from the same work context in a serialized fashion.
For example updating the white list and resolving list can be done now
without having to know the list size ahead of time. Also preparing for
suspend or resume shouldn't require a state machine anymore. There are
other tasks that should be simplified as well.
Signed-off-by: Marcel Holtmann <[email protected]>
Signed-off-by: Luiz Augusto von Dentz <[email protected]>
---
include/net/bluetooth/hci_core.h | 17 +++++++
net/bluetooth/hci_core.c | 82 ++++++++++++++++++++++++++++++++
2 files changed, 99 insertions(+)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index a53e94459ecd..7b8dac2131e7 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -302,6 +302,17 @@ struct amp_assoc {
#define HCI_MAX_PAGES 3
+typedef int (*cmd_sync_work_func_t)(struct hci_dev *hdev, void *data);
+typedef void (*cmd_sync_work_destroy_t)(struct hci_dev *hdev, void *data,
+ int err);
+
+struct cmd_sync_work_entry {
+ struct list_head list;
+ cmd_sync_work_func_t func;
+ void *data;
+ cmd_sync_work_destroy_t destroy;
+};
+
struct hci_dev {
struct list_head list;
struct mutex lock;
@@ -463,6 +474,9 @@ struct hci_dev {
struct work_struct power_on;
struct delayed_work power_off;
struct work_struct error_reset;
+ struct work_struct cmd_sync_work;
+ struct list_head cmd_sync_work_list;
+ struct mutex cmd_sync_work_lock;
__u16 discov_timeout;
struct delayed_work discov_off;
@@ -1701,6 +1715,9 @@ void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u32 timeout);
+int hci_cmd_sync_queue(struct hci_dev *hdev, cmd_sync_work_func_t func,
+ void *data, cmd_sync_work_destroy_t destroy);
+
u32 hci_conn_get_phy(struct hci_conn *conn);
/* ----- HCI Sockets ----- */
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 1eb7ffd0dd29..8100a3a1ae13 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2329,6 +2329,81 @@ static void hci_error_reset(struct work_struct *work)
hci_dev_do_open(hdev);
}
+static void hci_cmd_sync_work(struct work_struct *work)
+{
+ struct hci_dev *hdev = container_of(work, struct hci_dev, cmd_sync_work);
+ struct cmd_sync_work_entry *entry;
+ cmd_sync_work_func_t func;
+ cmd_sync_work_destroy_t destroy;
+ void *data;
+
+ bt_dev_dbg(hdev, "");
+
+ mutex_lock(&hdev->cmd_sync_work_lock);
+ entry = list_first_entry(&hdev->cmd_sync_work_list,
+ struct cmd_sync_work_entry, list);
+ if (entry) {
+ list_del(&entry->list);
+ func = entry->func;
+ data = entry->data;
+ destroy = entry->destroy;
+ kfree(entry);
+ } else {
+ func = NULL;
+ data = NULL;
+ destroy = NULL;
+ }
+ mutex_unlock(&hdev->cmd_sync_work_lock);
+
+ if (func) {
+ int err;
+
+ hci_req_sync_lock(hdev);
+
+ err = func(hdev, data);
+
+ if (destroy)
+ destroy(hdev, data, err);
+
+ hci_req_sync_unlock(hdev);
+ }
+}
+
+int hci_cmd_sync_queue(struct hci_dev *hdev, cmd_sync_work_func_t func,
+ void *data, cmd_sync_work_destroy_t destroy)
+{
+ struct cmd_sync_work_entry *entry;
+
+ entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+
+ entry->func = func;
+ entry->data = data;
+ entry->destroy = destroy;
+
+ mutex_lock(&hdev->cmd_sync_work_lock);
+ list_add_tail(&entry->list, &hdev->cmd_sync_work_list);
+ mutex_unlock(&hdev->cmd_sync_work_lock);
+
+ queue_work(hdev->req_workqueue, &hdev->cmd_sync_work);
+
+ return 0;
+}
+
+static void hci_cmd_sync_clear(struct hci_dev *hdev)
+{
+ struct cmd_sync_work_entry *entry, *tmp;
+
+ list_for_each_entry_safe(entry, tmp, &hdev->cmd_sync_work_list, list) {
+ if (entry->destroy)
+ entry->destroy(hdev, entry->data, -ECANCELED);
+
+ list_del(&entry->list);
+ kfree(entry);
+ }
+}
+
void hci_uuids_clear(struct hci_dev *hdev)
{
struct bt_uuid *uuid, *tmp;
@@ -3845,6 +3920,10 @@ struct hci_dev *hci_alloc_dev(void)
INIT_WORK(&hdev->error_reset, hci_error_reset);
INIT_WORK(&hdev->suspend_prepare, hci_prepare_suspend);
+ INIT_WORK(&hdev->cmd_sync_work, hci_cmd_sync_work);
+ INIT_LIST_HEAD(&hdev->cmd_sync_work_list);
+ mutex_init(&hdev->cmd_sync_work_lock);
+
INIT_DELAYED_WORK(&hdev->power_off, hci_power_off);
skb_queue_head_init(&hdev->rx_q);
@@ -4005,6 +4084,9 @@ void hci_unregister_dev(struct hci_dev *hdev)
cancel_work_sync(&hdev->power_on);
+ cancel_work_sync(&hdev->cmd_sync_work);
+ hci_cmd_sync_clear(hdev);
+
if (!test_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks)) {
hci_suspend_clear_tasks(hdev);
unregister_pm_notifier(&hdev->suspend_notifier);
--
2.31.1
From: Luiz Augusto von Dentz <[email protected]>
This make use of hci_cmd_sync_queue for the following MGMT commands:
Add Advertising
Remove Advertising
Add Extended Advertising Parameters
Add Extended Advertising Data
mgmt-tester -s "Add Advertising"
Test Summary
------------
Add Advertising - Failure: LE off Passed 0.175 seconds
Add Advertising - Invalid Params 1 (AD too long) Passed 0.017 seconds
Add Advertising - Invalid Params 2 (Malformed len) Passed 0.016 seconds
Add Advertising - Invalid Params 3 (Malformed len) Passed 0.015 seconds
Add Advertising - Invalid Params 4 (Malformed len) Passed 0.016 seconds
Add Advertising - Invalid Params 5 (AD too long) Passed 0.020 seconds
Add Advertising - Invalid Params 6 (ScRsp too long) Passed 0.020 seconds
Add Advertising - Invalid Params 7 (Malformed len) Passed 0.020 seconds
Add Advertising - Invalid Params 8 (Malformed len) Passed 0.021 seconds
Add Advertising - Invalid Params 9 (Malformed len) Passed 0.021 seconds
Add Advertising - Invalid Params 10 (ScRsp too long) Passed 0.014 seconds
Add Advertising - Rejected (Timeout, !Powered) Passed 0.022 seconds
Add Advertising - Success 1 (Powered, Add Adv Inst) Passed 0.028 seconds
Add Advertising - Success 2 (!Powered, Add Adv Inst) Passed 0.027 seconds
Add Advertising - Success 3 (!Powered, Adv Enable) Passed 0.019 seconds
Add Advertising - Success 4 (Set Adv on override) Passed 0.019 seconds
Add Advertising - Success 5 (Set Adv off override) Passed 0.019 seconds
Add Advertising - Success 6 (Scan Rsp Dta, Adv ok) Passed 0.020 seconds
Add Advertising - Success 7 (Scan Rsp Dta, Scan ok) Passed 0.020 seconds
Add Advertising - Success 8 (Connectable Flag) Passed 0.019 seconds
Add Advertising - Success 9 (General Discov Flag) Passed 0.018 seconds
Add Advertising - Success 10 (Limited Discov Flag) Passed 0.018 seconds
Add Advertising - Success 11 (Managed Flags) Passed 0.018 seconds
Add Advertising - Success 12 (TX Power Flag) Passed 0.017 seconds
Add Advertising - Success 13 (ADV_SCAN_IND) Passed 0.021 seconds
Add Advertising - Success 14 (ADV_NONCONN_IND) Passed 0.018 seconds
Add Advertising - Success 15 (ADV_IND) Passed 0.017 seconds
Add Advertising - Success 16 (Connectable -> on) Passed 0.019 seconds
Add Advertising - Success 17 (Connectable -> off) Passed 0.019 seconds
Add Advertising - Success 18 (Power -> off, Remove) Passed 0.018 seconds
Add Advertising - Success 19 (Power -> off, Keep) Passed 0.033 seconds
Add Advertising - Success 20 (Add Adv override) Passed 0.019 seconds
Add Advertising - Success 21 (Timeout expires) Passed 1.050 seconds
Add Advertising - Success 22 (LE -> off, Remove) Passed 0.025 seconds
Add Advertising - Success (Empty ScRsp) Passed 0.016 seconds
Add Advertising - Success (ScRsp only) Passed 0.024 seconds
Add Advertising - Invalid Params (ScRsp too long) Passed 0.016 seconds
Add Advertising - Success (ScRsp appear) Passed 0.016 seconds
Add Advertising - Invalid Params (ScRsp appear long) Passed 0.017 seconds
Add Advertising - Success (Appear is null) Passed 0.016 seconds
Add Advertising - Success (Name is null) Passed 0.018 seconds
Add Advertising - Success (Complete name) Passed 0.020 seconds
Add Advertising - Success (Shortened name) Passed 0.019 seconds
Add Advertising - Success (Short name) Passed 0.019 seconds
Add Advertising - Success (Name + data) Passed 0.020 seconds
Add Advertising - Invalid Params (Name + data) Passed 0.016 seconds
Add Advertising - Success (Name+data+appear) Passed 0.022 seconds
Total: 47, Passed: 47 (100.0%), Failed: 0, Not Run: 0
Overall execution time: 2.17 seconds
mgmt-tester -s "Remove Advertising"
Test Summary
------------
Remove Advertising - Invalid Params 1 Passed 0.017 seconds
Remove Advertising - Success 1 Passed 0.020 seconds
Remove Advertising - Success 2 Passed 0.019 seconds
Total: 3, Passed: 3 (100.0%), Failed: 0, Not Run: 0
Overall execution time: 0.0585 seconds
mgmt-tester -s "Ext Adv MGMT Params"
Test Summary:
------------
Ext Adv MGMT Params - Unpowered Passed 0.019 seconds
Ext Adv MGMT Params - Invalid parameters Passed 0.015 seconds
Ext Adv MGMT Params - Success Passed 0.016 seconds
Ext Adv MGMT Params - (5.0) Success Passed 0.019 seconds
Total: 4, Passed: 4 (100.0%), Failed: 0, Not Run: 0
Overall execution time: 0.0746 seconds
mgmt-tester -s "Ext Adv MGMT -"
Test Summary
------------
Ext Adv MGMT - Data set without Params Passed 0.019 seconds
Ext Adv MGMT - AD Data (5.0) Invalid parameters Passed 0.018 seconds
Ext Adv MGMT - AD Data (5.0) Success Passed 0.019 seconds
Ext Adv MGMT - AD Scan Response (5.0) Success Passed 0.019 seconds
Total: 4, Passed: 4 (100.0%), Failed: 0, Not Run: 0
Overall execution time: 0.0805 seconds
Signed-off-by: Luiz Augusto von Dentz <[email protected]>
---
net/bluetooth/hci_sync.c | 763 +++++++++++++++++++++++++++++++++++++++
net/bluetooth/hci_sync.h | 22 ++
net/bluetooth/mgmt.c | 400 ++++++++++----------
3 files changed, 983 insertions(+), 202 deletions(-)
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index e2ddfdf7c515..e45551fba809 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -7,9 +7,11 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/mgmt.h>
#include "hci_request.h"
#include "hci_sync.h"
+#include "smp.h"
#include "eir.h"
struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
@@ -169,3 +171,764 @@ int hci_update_class_sync(struct hci_dev *hdev)
return __hci_cmd_sync_status(hdev, HCI_OP_WRITE_CLASS_OF_DEV,
sizeof(cod), cod, HCI_CMD_TIMEOUT);
}
+
+static bool is_advertising_allowed(struct hci_dev *hdev, bool connectable)
+{
+ /* If there is no connection we are OK to advertise. */
+ if (hci_conn_num(hdev, LE_LINK) == 0)
+ return true;
+
+ /* Check le_states if there is any connection in peripheral role. */
+ if (hdev->conn_hash.le_num_peripheral > 0) {
+ /* Peripheral connection state and non connectable mode
+ * bit 20.
+ */
+ if (!connectable && !(hdev->le_states[2] & 0x10))
+ return false;
+
+ /* Peripheral connection state and connectable mode bit 38
+ * and scannable bit 21.
+ */
+ if (connectable && (!(hdev->le_states[4] & 0x40) ||
+ !(hdev->le_states[2] & 0x20)))
+ return false;
+ }
+
+ /* Check le_states if there is any connection in central role. */
+ if (hci_conn_num(hdev, LE_LINK) != hdev->conn_hash.le_num_peripheral) {
+ /* Central connection state and non connectable mode bit 18. */
+ if (!connectable && !(hdev->le_states[2] & 0x02))
+ return false;
+
+ /* Central connection state and connectable mode bit 35 and
+ * scannable 19.
+ */
+ if (connectable && (!(hdev->le_states[4] & 0x08) ||
+ !(hdev->le_states[2] & 0x08)))
+ return false;
+ }
+
+ return true;
+}
+
+static bool adv_use_rpa(struct hci_dev *hdev, uint32_t flags)
+{
+ /* If privacy is not enabled don't use RPA */
+ if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
+ return false;
+
+ /* If basic privacy mode is enabled use RPA */
+ if (!hci_dev_test_flag(hdev, HCI_LIMITED_PRIVACY))
+ return true;
+
+ /* If limited privacy mode is enabled don't use RPA if we're
+ * both discoverable and bondable.
+ */
+ if ((flags & MGMT_ADV_FLAG_DISCOV) &&
+ hci_dev_test_flag(hdev, HCI_BONDABLE))
+ return false;
+
+ /* We're neither bondable nor discoverable in the limited
+ * privacy mode, therefore use RPA.
+ */
+ return true;
+}
+
+static int hci_set_random_addr_sync(struct hci_dev *hdev, bdaddr_t *rpa)
+{
+ /* If we're advertising or initiating an LE connection we can't
+ * go ahead and change the random address at this time. This is
+ * because the eventual initiator address used for the
+ * subsequently created connection will be undefined (some
+ * controllers use the new address and others the one we had
+ * when the operation started).
+ *
+ * In this kind of scenario skip the update and let the random
+ * address be updated at the next cycle.
+ */
+ if (hci_dev_test_flag(hdev, HCI_LE_ADV) ||
+ hci_lookup_le_connect(hdev)) {
+ bt_dev_dbg(hdev, "Deferring random address update");
+ hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
+ return 0;
+ }
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_RANDOM_ADDR,
+ 6, rpa, HCI_CMD_TIMEOUT);
+}
+
+int hci_update_random_address_sync(struct hci_dev *hdev, bool require_privacy,
+ bool rpa, u8 *own_addr_type)
+{
+ int err;
+
+ /* If privacy is enabled use a resolvable private address. If
+ * current RPA has expired or there is something else than
+ * the current RPA in use, then generate a new one.
+ */
+ if (rpa) {
+ int to;
+
+ /* If Controller supports LL Privacy use own address type is
+ * 0x03
+ */
+ if (use_ll_privacy(hdev) &&
+ hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ *own_addr_type = ADDR_LE_DEV_RANDOM_RESOLVED;
+ else
+ *own_addr_type = ADDR_LE_DEV_RANDOM;
+
+ if (!hci_dev_test_and_clear_flag(hdev, HCI_RPA_EXPIRED) &&
+ !bacmp(&hdev->random_addr, &hdev->rpa))
+ return 0;
+
+ err = smp_generate_rpa(hdev, hdev->irk, &hdev->rpa);
+ if (err < 0) {
+ bt_dev_err(hdev, "failed to generate new RPA");
+ return err;
+ }
+
+ err = hci_set_random_addr_sync(hdev, &hdev->rpa);
+ if (err)
+ return err;
+
+ to = msecs_to_jiffies(hdev->rpa_timeout * 1000);
+ queue_delayed_work(hdev->workqueue, &hdev->rpa_expired, to);
+
+ return 0;
+ }
+
+ /* In case of required privacy without resolvable private address,
+ * use an non-resolvable private address. This is useful for active
+ * scanning and non-connectable advertising.
+ */
+ if (require_privacy) {
+ bdaddr_t nrpa;
+
+ while (true) {
+ /* The non-resolvable private address is generated
+ * from random six bytes with the two most significant
+ * bits cleared.
+ */
+ get_random_bytes(&nrpa, 6);
+ nrpa.b[5] &= 0x3f;
+
+ /* The non-resolvable private address shall not be
+ * equal to the public address.
+ */
+ if (bacmp(&hdev->bdaddr, &nrpa))
+ break;
+ }
+
+ *own_addr_type = ADDR_LE_DEV_RANDOM;
+
+ return hci_set_random_addr_sync(hdev, &hdev->rpa);
+ }
+
+ /* If forcing static address is in use or there is no public
+ * address use the static address as random address (but skip
+ * the HCI command if the current random address is already the
+ * static one.
+ *
+ * In case BR/EDR has been disabled on a dual-mode controller
+ * and a static address has been configured, then use that
+ * address instead of the public BR/EDR address.
+ */
+ if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
+ !bacmp(&hdev->bdaddr, BDADDR_ANY) ||
+ (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
+ bacmp(&hdev->static_addr, BDADDR_ANY))) {
+ *own_addr_type = ADDR_LE_DEV_RANDOM;
+ if (bacmp(&hdev->static_addr, &hdev->random_addr))
+ return hci_set_random_addr_sync(hdev,
+ &hdev->static_addr);
+ return 0;
+ }
+
+ /* Neither privacy nor static address is being used so use a
+ * public address.
+ */
+ *own_addr_type = ADDR_LE_DEV_PUBLIC;
+
+ return 0;
+}
+
+int hci_setup_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance)
+{
+ struct hci_cp_le_set_ext_adv_params cp;
+ bool connectable;
+ u32 flags;
+ bdaddr_t random_addr;
+ u8 own_addr_type;
+ int err;
+ struct adv_info *adv;
+ bool secondary_adv;
+
+ if (instance > 0) {
+ adv = hci_find_adv_instance(hdev, instance);
+ if (!adv)
+ return -EINVAL;
+ } else {
+ adv = NULL;
+ }
+
+ /* Updating parameters of an active instance will return a
+ * Command Disallowed error, so we must first disable the
+ * instance if it is active.
+ */
+ if (adv && !adv->pending) {
+ err = hci_disable_ext_adv_instance_sync(hdev, instance);
+ if (err)
+ return err;
+ }
+
+ flags = hci_adv_instance_flags(hdev, instance);
+
+ /* If the "connectable" instance flag was not set, then choose between
+ * ADV_IND and ADV_NONCONN_IND based on the global connectable setting.
+ */
+ connectable = (flags & MGMT_ADV_FLAG_CONNECTABLE) ||
+ mgmt_get_connectable(hdev);
+
+ if (!is_advertising_allowed(hdev, connectable))
+ return -EPERM;
+
+ /* Set require_privacy to true only when non-connectable
+ * advertising is used. In that case it is fine to use a
+ * non-resolvable private address.
+ */
+ err = hci_get_random_address(hdev, !connectable,
+ adv_use_rpa(hdev, flags), adv,
+ &own_addr_type, &random_addr);
+ if (err < 0)
+ return err;
+
+ memset(&cp, 0, sizeof(cp));
+
+ if (adv) {
+ hci_cpu_to_le24(adv->min_interval, cp.min_interval);
+ hci_cpu_to_le24(adv->max_interval, cp.max_interval);
+ cp.tx_power = adv->tx_power;
+ } else {
+ hci_cpu_to_le24(hdev->le_adv_min_interval, cp.min_interval);
+ hci_cpu_to_le24(hdev->le_adv_max_interval, cp.max_interval);
+ cp.tx_power = HCI_ADV_TX_POWER_NO_PREFERENCE;
+ }
+
+ secondary_adv = (flags & MGMT_ADV_FLAG_SEC_MASK);
+
+ if (connectable) {
+ if (secondary_adv)
+ cp.evt_properties = cpu_to_le16(LE_EXT_ADV_CONN_IND);
+ else
+ cp.evt_properties = cpu_to_le16(LE_LEGACY_ADV_IND);
+ } else if (hci_adv_instance_is_scannable(hdev, instance) ||
+ (flags & MGMT_ADV_PARAM_SCAN_RSP)) {
+ if (secondary_adv)
+ cp.evt_properties = cpu_to_le16(LE_EXT_ADV_SCAN_IND);
+ else
+ cp.evt_properties = cpu_to_le16(LE_LEGACY_ADV_SCAN_IND);
+ } else {
+ if (secondary_adv)
+ cp.evt_properties = cpu_to_le16(LE_EXT_ADV_NON_CONN_IND);
+ else
+ cp.evt_properties = cpu_to_le16(LE_LEGACY_NONCONN_IND);
+ }
+
+ cp.own_addr_type = own_addr_type;
+ cp.channel_map = hdev->le_adv_channel_map;
+ cp.handle = instance;
+
+ if (flags & MGMT_ADV_FLAG_SEC_2M) {
+ cp.primary_phy = HCI_ADV_PHY_1M;
+ cp.secondary_phy = HCI_ADV_PHY_2M;
+ } else if (flags & MGMT_ADV_FLAG_SEC_CODED) {
+ cp.primary_phy = HCI_ADV_PHY_CODED;
+ cp.secondary_phy = HCI_ADV_PHY_CODED;
+ } else {
+ /* In all other cases use 1M */
+ cp.primary_phy = HCI_ADV_PHY_1M;
+ cp.secondary_phy = HCI_ADV_PHY_1M;
+ }
+
+ err = __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+ if (err)
+ return err;
+
+ if (own_addr_type == ADDR_LE_DEV_RANDOM &&
+ bacmp(&random_addr, BDADDR_ANY)) {
+ /* Check if random address need to be updated */
+ if (adv) {
+ if (!bacmp(&random_addr, &adv->random_addr))
+ return 0;
+ } else {
+ if (!bacmp(&random_addr, &hdev->random_addr))
+ return 0;
+ }
+
+ return hci_set_random_addr_sync(hdev, &random_addr);
+ }
+
+ return 0;
+}
+
+static int hci_set_ext_scan_rsp_data_sync(struct hci_dev *hdev, u8 instance)
+{
+ struct {
+ struct hci_cp_le_set_ext_scan_rsp_data cp;
+ u8 data[HCI_MAX_EXT_AD_LENGTH];
+ } pdu;
+ u8 len;
+
+ memset(&pdu, 0, sizeof(pdu));
+
+ len = eir_create_scan_rsp(hdev, instance, pdu.data);
+
+ if (hdev->scan_rsp_data_len == len &&
+ !memcmp(pdu.data, hdev->scan_rsp_data, len))
+ return 0;
+
+ memcpy(hdev->scan_rsp_data, pdu.data, len);
+ hdev->scan_rsp_data_len = len;
+
+ pdu.cp.handle = instance;
+ pdu.cp.length = len;
+ pdu.cp.operation = LE_SET_ADV_DATA_OP_COMPLETE;
+ pdu.cp.frag_pref = LE_SET_ADV_DATA_NO_FRAG;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_EXT_SCAN_RSP_DATA,
+ sizeof(pdu.cp) + len, &pdu.cp,
+ HCI_CMD_TIMEOUT);
+}
+
+static int __hci_set_scan_rsp_data_sync(struct hci_dev *hdev, u8 instance)
+{
+ struct hci_cp_le_set_scan_rsp_data cp;
+ u8 len;
+
+ memset(&cp, 0, sizeof(cp));
+
+ len = eir_create_scan_rsp(hdev, instance, cp.data);
+
+ if (hdev->scan_rsp_data_len == len &&
+ !memcmp(cp.data, hdev->scan_rsp_data, len))
+ return 0;
+
+ memcpy(hdev->scan_rsp_data, cp.data, sizeof(cp.data));
+ hdev->scan_rsp_data_len = len;
+
+ cp.length = len;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_SCAN_RSP_DATA,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
+int hci_update_scan_rsp_data_sync(struct hci_dev *hdev, u8 instance)
+{
+ if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
+ return 0;
+
+ if (ext_adv_capable(hdev))
+ return hci_set_ext_scan_rsp_data_sync(hdev, instance);
+
+ return __hci_set_scan_rsp_data_sync(hdev, instance);
+}
+
+int hci_enable_ext_advertising_sync(struct hci_dev *hdev, u8 instance)
+{
+ struct hci_cp_le_set_ext_adv_enable *cp;
+ struct hci_cp_ext_adv_set *set;
+ u8 data[sizeof(*cp) + sizeof(*set) * 1];
+ struct adv_info *adv;
+
+ if (instance > 0) {
+ adv = hci_find_adv_instance(hdev, instance);
+ if (!adv)
+ return -EINVAL;
+ } else {
+ adv = NULL;
+ }
+
+ cp = (void *)data;
+ set = (void *)cp->data;
+
+ memset(cp, 0, sizeof(*cp));
+
+ cp->enable = 0x01;
+ cp->num_of_sets = 0x01;
+
+ memset(set, 0, sizeof(*set));
+
+ set->handle = instance;
+
+ /* Set duration per instance since controller is responsible for
+ * scheduling it.
+ */
+ if (adv && adv->duration) {
+ u16 duration = adv->timeout * MSEC_PER_SEC;
+
+ /* Time = N * 10 ms */
+ set->duration = cpu_to_le16(duration / 10);
+ }
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE,
+ sizeof(*cp) +
+ sizeof(*set) * cp->num_of_sets,
+ data, HCI_CMD_TIMEOUT);
+}
+
+int hci_start_ext_adv_sync(struct hci_dev *hdev, u8 instance)
+{
+ int err;
+
+ err = hci_setup_ext_adv_instance_sync(hdev, instance);
+ if (err)
+ return err;
+
+ err = hci_set_ext_scan_rsp_data_sync(hdev, instance);
+ if (err)
+ return err;
+
+ return hci_enable_ext_advertising_sync(hdev, instance);
+}
+
+static int hci_start_adv_sync(struct hci_dev *hdev, u8 instance)
+{
+ int err;
+
+ if (ext_adv_capable(hdev))
+ return hci_start_ext_adv_sync(hdev, instance);
+
+ err = hci_update_adv_data_sync(hdev, instance);
+ if (err)
+ return err;
+
+ err = hci_update_scan_rsp_data_sync(hdev, instance);
+ if (err)
+ return err;
+
+ return hci_enable_advertising_sync(hdev);
+}
+
+int hci_enable_advertising_sync(struct hci_dev *hdev)
+{
+ struct adv_info *adv_instance;
+ struct hci_cp_le_set_adv_param cp;
+ u8 own_addr_type, enable = 0x01;
+ bool connectable;
+ u16 adv_min_interval, adv_max_interval;
+ u32 flags;
+ u8 status;
+
+ flags = hci_adv_instance_flags(hdev, hdev->cur_adv_instance);
+ adv_instance = hci_find_adv_instance(hdev, hdev->cur_adv_instance);
+
+ /* If the "connectable" instance flag was not set, then choose between
+ * ADV_IND and ADV_NONCONN_IND based on the global connectable setting.
+ */
+ connectable = (flags & MGMT_ADV_FLAG_CONNECTABLE) ||
+ mgmt_get_connectable(hdev);
+
+ if (!is_advertising_allowed(hdev, connectable))
+ return -EINVAL;
+
+ if (hci_dev_test_flag(hdev, HCI_LE_ADV)) {
+ status = hci_disable_advertising_sync(hdev);
+ if (status)
+ return status;
+ }
+
+ /* Clear the HCI_LE_ADV bit temporarily so that the
+ * hci_update_random_address knows that it's safe to go ahead
+ * and write a new random address. The flag will be set back on
+ * as soon as the SET_ADV_ENABLE HCI command completes.
+ */
+ hci_dev_clear_flag(hdev, HCI_LE_ADV);
+
+ /* Set require_privacy to true only when non-connectable
+ * advertising is used. In that case it is fine to use a
+ * non-resolvable private address.
+ */
+ status = hci_update_random_address_sync(hdev, !connectable,
+ adv_use_rpa(hdev, flags),
+ &own_addr_type);
+ if (status)
+ return status;
+
+ memset(&cp, 0, sizeof(cp));
+
+ if (adv_instance) {
+ adv_min_interval = adv_instance->min_interval;
+ adv_max_interval = adv_instance->max_interval;
+ } else {
+ adv_min_interval = hdev->le_adv_min_interval;
+ adv_max_interval = hdev->le_adv_max_interval;
+ }
+
+ if (connectable) {
+ cp.type = LE_ADV_IND;
+ } else {
+ if (hci_adv_instance_is_scannable(hdev, hdev->cur_adv_instance))
+ cp.type = LE_ADV_SCAN_IND;
+ else
+ cp.type = LE_ADV_NONCONN_IND;
+
+ if (!hci_dev_test_flag(hdev, HCI_DISCOVERABLE) ||
+ hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE)) {
+ adv_min_interval = DISCOV_LE_FAST_ADV_INT_MIN;
+ adv_max_interval = DISCOV_LE_FAST_ADV_INT_MAX;
+ }
+ }
+
+ cp.min_interval = cpu_to_le16(adv_min_interval);
+ cp.max_interval = cpu_to_le16(adv_max_interval);
+ cp.own_address_type = own_addr_type;
+ cp.channel_map = hdev->le_adv_channel_map;
+
+ status = __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_ADV_PARAM,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+ if (status)
+ return status;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_ADV_ENABLE,
+ sizeof(enable), &enable, HCI_CMD_TIMEOUT);
+}
+
+int hci_remove_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance)
+{
+ /* If request specifies an instance that doesn't exist, fail */
+ if (instance > 0 && !hci_find_adv_instance(hdev, instance))
+ return -EINVAL;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_REMOVE_ADV_SET,
+ sizeof(instance), &instance,
+ HCI_CMD_TIMEOUT);
+}
+
+int hci_disable_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance)
+{
+ struct hci_cp_le_set_ext_adv_enable *cp;
+ struct hci_cp_ext_adv_set *set;
+ u8 data[sizeof(*cp) + sizeof(*set) * 1];
+ u8 size;
+
+ /* If request specifies an instance that doesn't exist, fail */
+ if (instance > 0 && !hci_find_adv_instance(hdev, instance))
+ return -EINVAL;
+
+ memset(data, 0, sizeof(data));
+
+ cp = (void *)data;
+ set = (void *)cp->data;
+
+ /* Instance 0x00 indicates all advertising instances will be disabled */
+ cp->num_of_sets = !!instance;
+ cp->enable = 0x00;
+
+ set->handle = instance;
+
+ size = sizeof(*cp) + sizeof(*set) * cp->num_of_sets;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE,
+ size, data, HCI_CMD_TIMEOUT);
+}
+
+static void cancel_adv_timeout(struct hci_dev *hdev)
+{
+ if (hdev->adv_instance_timeout) {
+ hdev->adv_instance_timeout = 0;
+ cancel_delayed_work(&hdev->adv_instance_expire);
+ }
+}
+
+static int hci_set_ext_adv_data_sync(struct hci_dev *hdev, u8 instance)
+{
+ struct {
+ struct hci_cp_le_set_ext_adv_data cp;
+ u8 data[HCI_MAX_EXT_AD_LENGTH];
+ } pdu;
+ u8 len;
+
+ memset(&pdu, 0, sizeof(pdu));
+
+ len = eir_create_adv_data(hdev, instance, pdu.data);
+
+ /* There's nothing to do if the data hasn't changed */
+ if (hdev->adv_data_len == len &&
+ memcmp(pdu.data, hdev->adv_data, len) == 0)
+ return 0;
+
+ memcpy(hdev->adv_data, pdu.data, len);
+ hdev->adv_data_len = len;
+
+ pdu.cp.length = len;
+ pdu.cp.handle = instance;
+ pdu.cp.operation = LE_SET_ADV_DATA_OP_COMPLETE;
+ pdu.cp.frag_pref = LE_SET_ADV_DATA_NO_FRAG;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_EXT_ADV_DATA,
+ sizeof(pdu.cp) + len, &pdu.cp,
+ HCI_CMD_TIMEOUT);
+}
+
+static int hci_set_adv_data_sync(struct hci_dev *hdev, u8 instance)
+{
+ struct hci_cp_le_set_adv_data cp;
+ u8 len;
+
+ memset(&cp, 0, sizeof(cp));
+
+ len = eir_create_adv_data(hdev, instance, cp.data);
+
+ /* There's nothing to do if the data hasn't changed */
+ if (hdev->adv_data_len == len &&
+ memcmp(cp.data, hdev->adv_data, len) == 0)
+ return 0;
+
+ memcpy(hdev->adv_data, cp.data, sizeof(cp.data));
+ hdev->adv_data_len = len;
+
+ cp.length = len;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_ADV_DATA,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
+int hci_update_adv_data_sync(struct hci_dev *hdev, u8 instance)
+{
+ if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
+ return 0;
+
+ if (ext_adv_capable(hdev))
+ return hci_set_ext_adv_data_sync(hdev, instance);
+
+ return hci_set_adv_data_sync(hdev, instance);
+}
+
+int hci_schedule_adv_instance_sync(struct hci_dev *hdev, u8 instance,
+ bool force)
+{
+ struct adv_info *adv = NULL;
+ u16 timeout;
+
+ if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
+ list_empty(&hdev->adv_instances))
+ return -EPERM;
+
+ if (hdev->adv_instance_timeout)
+ return -EBUSY;
+
+ adv = hci_find_adv_instance(hdev, instance);
+ if (!adv)
+ return -ENOENT;
+
+ /* A zero timeout means unlimited advertising. As long as there is
+ * only one instance, duration should be ignored. We still set a timeout
+ * in case further instances are being added later on.
+ *
+ * If the remaining lifetime of the instance is more than the duration
+ * then the timeout corresponds to the duration, otherwise it will be
+ * reduced to the remaining instance lifetime.
+ */
+ if (adv->timeout == 0 || adv->duration <= adv->remaining_time)
+ timeout = adv->duration;
+ else
+ timeout = adv->remaining_time;
+
+ /* The remaining time is being reduced unless the instance is being
+ * advertised without time limit.
+ */
+ if (adv->timeout)
+ adv->remaining_time = adv->remaining_time - timeout;
+
+ /* Only use work for scheduling instances with legacy advertising */
+ if (!ext_adv_capable(hdev)) {
+ hdev->adv_instance_timeout = timeout;
+ queue_delayed_work(hdev->req_workqueue,
+ &hdev->adv_instance_expire,
+ msecs_to_jiffies(timeout * 1000));
+ }
+
+ /* If we're just re-scheduling the same instance again then do not
+ * execute any HCI commands. This happens when a single instance is
+ * being advertised.
+ */
+ if (!force && hdev->cur_adv_instance == instance &&
+ hci_dev_test_flag(hdev, HCI_LE_ADV))
+ return 0;
+
+ hdev->cur_adv_instance = instance;
+
+ return hci_start_adv_sync(hdev, instance);
+}
+
+/* For a single instance:
+ * - force == true: The instance will be removed even when its remaining
+ * lifetime is not zero.
+ * - force == false: the instance will be deactivated but kept stored unless
+ * the remaining lifetime is zero.
+ *
+ * For instance == 0x00:
+ * - force == true: All instances will be removed regardless of their timeout
+ * setting.
+ * - force == false: Only instances that have a timeout will be removed.
+ */
+void hci_clear_adv_instance_sync(struct hci_dev *hdev, struct sock *sk,
+ u8 instance, bool force)
+{
+ struct adv_info *adv, *n, *next = NULL;
+ int err;
+
+ /* Cancel any timeout concerning the removed instance(s). */
+ if (!instance || hdev->cur_adv_instance == instance)
+ cancel_adv_timeout(hdev);
+
+ /* Get the next instance to advertise BEFORE we remove
+ * the current one. This can be the same instance again
+ * if there is only one instance.
+ */
+ if (instance && hdev->cur_adv_instance == instance)
+ next = hci_get_next_instance(hdev, instance);
+
+ if (instance == 0x00) {
+ list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
+ if (!(force || adv->timeout))
+ continue;
+
+ instance = adv->instance;
+ err = hci_remove_adv_instance(hdev, instance);
+ if (!err)
+ mgmt_advertising_removed(sk, hdev, instance);
+ }
+ } else {
+ adv = hci_find_adv_instance(hdev, instance);
+
+ if (force || (adv && adv->timeout && !adv->remaining_time)) {
+ /* Don't advertise a removed instance. */
+ if (next && next->instance == instance)
+ next = NULL;
+
+ err = hci_remove_adv_instance(hdev, instance);
+ if (!err)
+ mgmt_advertising_removed(sk, hdev, instance);
+ }
+ }
+
+ if (!hdev_is_powered(hdev) || hci_dev_test_flag(hdev, HCI_ADVERTISING))
+ return;
+
+ if (next && !ext_adv_capable(hdev))
+ hci_schedule_adv_instance_sync(hdev, next->instance, false);
+}
+
+int hci_disable_advertising_sync(struct hci_dev *hdev)
+{
+ u8 enable = 0x00;
+
+ if (ext_adv_capable(hdev))
+ return hci_disable_ext_adv_instance_sync(hdev, 0x00);
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_ADV_ENABLE,
+ sizeof(enable), &enable, HCI_CMD_TIMEOUT);
+}
diff --git a/net/bluetooth/hci_sync.h b/net/bluetooth/hci_sync.h
index e3437150031c..5e4392a93607 100644
--- a/net/bluetooth/hci_sync.h
+++ b/net/bluetooth/hci_sync.h
@@ -7,3 +7,25 @@
int hci_update_eir_sync(struct hci_dev *hdev);
int hci_update_class_sync(struct hci_dev *hdev);
+
+int hci_update_eir_sync(struct hci_dev *hdev);
+int hci_update_class_sync(struct hci_dev *hdev);
+
+int hci_update_random_address_sync(struct hci_dev *hdev, bool require_privacy,
+ bool rpa, u8 *own_addr_type);
+
+int hci_update_scan_rsp_data_sync(struct hci_dev *hdev, u8 instance);
+int hci_update_adv_data_sync(struct hci_dev *hdev, u8 instance);
+int hci_schedule_adv_instance_sync(struct hci_dev *hdev, u8 instance,
+ bool force);
+
+int hci_setup_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance);
+int hci_start_ext_adv_sync(struct hci_dev *hdev, u8 instance);
+int hci_enable_ext_advertising_sync(struct hci_dev *hdev, u8 instance);
+int hci_enable_advertising_sync(struct hci_dev *hdev);
+
+int hci_disable_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance);
+int hci_remove_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance);
+void hci_clear_adv_instance_sync(struct hci_dev *hdev, struct sock *sk,
+ u8 instance, bool force);
+int hci_disable_advertising_sync(struct hci_dev *hdev);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index d3e3cd073ed3..c9c90e3d2647 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1000,11 +1000,22 @@ static void service_cache_off(struct work_struct *work)
hci_cmd_sync_queue(hdev, service_cache_sync, NULL, NULL);
}
+static int rpa_expired_sync(struct hci_dev *hdev, void *data)
+{
+ /* The generation of a new RPA and programming it into the
+ * controller happens in the hci_req_enable_advertising()
+ * function.
+ */
+ if (ext_adv_capable(hdev))
+ return hci_start_ext_adv_sync(hdev, hdev->cur_adv_instance);
+ else
+ return hci_enable_advertising_sync(hdev);
+}
+
static void rpa_expired(struct work_struct *work)
{
struct hci_dev *hdev = container_of(work, struct hci_dev,
rpa_expired.work);
- struct hci_request req;
bt_dev_dbg(hdev, "");
@@ -1013,16 +1024,7 @@ static void rpa_expired(struct work_struct *work)
if (!hci_dev_test_flag(hdev, HCI_ADVERTISING))
return;
- /* The generation of a new RPA and programming it into the
- * controller happens in the hci_req_enable_advertising()
- * function.
- */
- hci_req_init(&req, hdev);
- if (ext_adv_capable(hdev))
- __hci_req_start_ext_adv(&req, hdev->cur_adv_instance);
- else
- __hci_req_enable_advertising(&req);
- hci_req_run(&req, NULL);
+ hci_cmd_sync_queue(hdev, rpa_expired_sync, NULL, NULL);
}
static void mgmt_init_hdev(struct sock *sk, struct hci_dev *hdev)
@@ -7641,58 +7643,66 @@ static bool adv_busy(struct hci_dev *hdev)
pending_find(MGMT_OP_ADD_EXT_ADV_DATA, hdev));
}
-static void add_advertising_complete(struct hci_dev *hdev, u8 status,
- u16 opcode)
+static void add_adv_complete(struct hci_dev *hdev, struct sock *sk, u8 instance,
+ int err)
{
- struct mgmt_pending_cmd *cmd;
- struct mgmt_cp_add_advertising *cp;
- struct mgmt_rp_add_advertising rp;
- struct adv_info *adv_instance, *n;
- u8 instance;
+ struct adv_info *adv, *n;
- bt_dev_dbg(hdev, "status %u", status);
+ bt_dev_dbg(hdev, "err %d", err);
hci_dev_lock(hdev);
- cmd = pending_find(MGMT_OP_ADD_ADVERTISING, hdev);
- if (!cmd)
- cmd = pending_find(MGMT_OP_ADD_EXT_ADV_DATA, hdev);
+ list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
+ u8 instance;
- list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances, list) {
- if (!adv_instance->pending)
+ if (!adv->pending)
continue;
- if (!status) {
- adv_instance->pending = false;
+ if (!err) {
+ adv->pending = false;
continue;
}
- instance = adv_instance->instance;
+ instance = adv->instance;
if (hdev->cur_adv_instance == instance)
cancel_adv_timeout(hdev);
hci_remove_adv_instance(hdev, instance);
- mgmt_advertising_removed(cmd ? cmd->sk : NULL, hdev, instance);
+ mgmt_advertising_removed(sk, hdev, instance);
}
- if (!cmd)
- goto unlock;
+ hci_dev_unlock(hdev);
+}
+
+static void add_advertising_complete(struct hci_dev *hdev, void *data, int err)
+{
+ struct mgmt_pending_cmd *cmd = data;
+ struct mgmt_cp_add_advertising *cp = cmd->param;
+ struct mgmt_rp_add_advertising rp;
+
+ memset(&rp, 0, sizeof(rp));
- cp = cmd->param;
rp.instance = cp->instance;
- if (status)
+ if (err)
mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
- mgmt_status(status));
+ mgmt_status(err));
else
mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
- mgmt_status(status), &rp, sizeof(rp));
+ mgmt_status(err), &rp, sizeof(rp));
- mgmt_pending_remove(cmd);
+ add_adv_complete(hdev, cmd->sk, cp->instance, err);
-unlock:
- hci_dev_unlock(hdev);
+ mgmt_pending_free(cmd);
+}
+
+static int add_advertising_sync(struct hci_dev *hdev, void *data)
+{
+ struct mgmt_pending_cmd *cmd = data;
+ struct mgmt_cp_add_advertising *cp = cmd->param;
+
+ return hci_schedule_adv_instance_sync(hdev, cp->instance, true);
}
static int add_advertising(struct sock *sk, struct hci_dev *hdev,
@@ -7708,7 +7718,6 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
struct adv_info *next_instance;
int err;
struct mgmt_pending_cmd *cmd;
- struct hci_request req;
bt_dev_dbg(hdev, "sock %p", sk);
@@ -7816,25 +7825,19 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
/* We're good to go, update advertising data, parameters, and start
* advertising.
*/
- cmd = mgmt_pending_add(sk, MGMT_OP_ADD_ADVERTISING, hdev, data,
+ cmd = mgmt_pending_new(sk, MGMT_OP_ADD_ADVERTISING, hdev, data,
data_len);
if (!cmd) {
err = -ENOMEM;
goto unlock;
}
- hci_req_init(&req, hdev);
-
- err = __hci_req_schedule_adv_instance(&req, schedule_instance, true);
+ cp->instance = schedule_instance;
- if (!err)
- err = hci_req_run(&req, add_advertising_complete);
-
- if (err < 0) {
- err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
- MGMT_STATUS_FAILED);
- mgmt_pending_remove(cmd);
- }
+ err = hci_cmd_sync_queue(hdev, add_advertising_sync, cmd,
+ add_advertising_complete);
+ if (err < 0)
+ mgmt_pending_free(cmd);
unlock:
hci_dev_unlock(hdev);
@@ -7842,30 +7845,25 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
return err;
}
-static void add_ext_adv_params_complete(struct hci_dev *hdev, u8 status,
- u16 opcode)
+static void add_ext_adv_params_complete(struct hci_dev *hdev, void *data,
+ int err)
{
- struct mgmt_pending_cmd *cmd;
- struct mgmt_cp_add_ext_adv_params *cp;
+ struct mgmt_pending_cmd *cmd = data;
+ struct mgmt_cp_add_ext_adv_params *cp = cmd->param;
struct mgmt_rp_add_ext_adv_params rp;
- struct adv_info *adv_instance;
+ struct adv_info *adv;
u32 flags;
BT_DBG("%s", hdev->name);
hci_dev_lock(hdev);
- cmd = pending_find(MGMT_OP_ADD_EXT_ADV_PARAMS, hdev);
- if (!cmd)
- goto unlock;
-
- cp = cmd->param;
- adv_instance = hci_find_adv_instance(hdev, cp->instance);
- if (!adv_instance)
+ adv = hci_find_adv_instance(hdev, cp->instance);
+ if (!adv)
goto unlock;
rp.instance = cp->instance;
- rp.tx_power = adv_instance->tx_power;
+ rp.tx_power = adv->tx_power;
/* While we're at it, inform userspace of the available space for this
* advertisement, given the flags that will be used.
@@ -7874,39 +7872,44 @@ static void add_ext_adv_params_complete(struct hci_dev *hdev, u8 status,
rp.max_adv_data_len = tlv_data_max_len(hdev, flags, true);
rp.max_scan_rsp_len = tlv_data_max_len(hdev, flags, false);
- if (status) {
+ if (err) {
/* If this advertisement was previously advertising and we
* failed to update it, we signal that it has been removed and
* delete its structure
*/
- if (!adv_instance->pending)
+ if (!adv->pending)
mgmt_advertising_removed(cmd->sk, hdev, cp->instance);
hci_remove_adv_instance(hdev, cp->instance);
mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
- mgmt_status(status));
-
+ mgmt_status(err));
} else {
mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
- mgmt_status(status), &rp, sizeof(rp));
+ mgmt_status(err), &rp, sizeof(rp));
}
unlock:
if (cmd)
- mgmt_pending_remove(cmd);
+ mgmt_pending_free(cmd);
hci_dev_unlock(hdev);
}
+static int add_ext_adv_params_sync(struct hci_dev *hdev, void *data)
+{
+ struct mgmt_pending_cmd *cmd = data;
+ struct mgmt_cp_add_ext_adv_params *cp = cmd->param;
+
+ return hci_setup_ext_adv_instance_sync(hdev, cp->instance);
+}
+
static int add_ext_adv_params(struct sock *sk, struct hci_dev *hdev,
void *data, u16 data_len)
{
struct mgmt_cp_add_ext_adv_params *cp = data;
struct mgmt_rp_add_ext_adv_params rp;
struct mgmt_pending_cmd *cmd = NULL;
- struct adv_info *adv_instance;
- struct hci_request req;
u32 flags, min_interval, max_interval;
u16 timeout, duration;
u8 status;
@@ -7988,29 +7991,18 @@ static int add_ext_adv_params(struct sock *sk, struct hci_dev *hdev,
/* Submit request for advertising params if ext adv available */
if (ext_adv_capable(hdev)) {
- hci_req_init(&req, hdev);
- adv_instance = hci_find_adv_instance(hdev, cp->instance);
-
- /* Updating parameters of an active instance will return a
- * Command Disallowed error, so we must first disable the
- * instance if it is active.
- */
- if (!adv_instance->pending)
- __hci_req_disable_ext_adv_instance(&req, cp->instance);
-
- __hci_req_setup_ext_adv_instance(&req, cp->instance);
-
- err = hci_req_run(&req, add_ext_adv_params_complete);
-
- if (!err)
- cmd = mgmt_pending_add(sk, MGMT_OP_ADD_EXT_ADV_PARAMS,
- hdev, data, data_len);
+ cmd = mgmt_pending_new(sk, MGMT_OP_ADD_EXT_ADV_PARAMS, hdev,
+ data, data_len);
if (!cmd) {
err = -ENOMEM;
hci_remove_adv_instance(hdev, cp->instance);
goto unlock;
}
+ err = hci_cmd_sync_queue(hdev, add_ext_adv_params_sync, cmd,
+ add_ext_adv_params_complete);
+ if (err < 0)
+ mgmt_pending_free(cmd);
} else {
rp.instance = cp->instance;
rp.tx_power = HCI_ADV_TX_POWER_NO_PREFERENCE;
@@ -8027,6 +8019,49 @@ static int add_ext_adv_params(struct sock *sk, struct hci_dev *hdev,
return err;
}
+static void add_ext_adv_data_complete(struct hci_dev *hdev, void *data, int err)
+{
+ struct mgmt_pending_cmd *cmd = data;
+ struct mgmt_cp_add_ext_adv_data *cp = cmd->param;
+ struct mgmt_rp_add_advertising rp;
+
+ add_adv_complete(hdev, cmd->sk, cp->instance, err);
+
+ memset(&rp, 0, sizeof(rp));
+
+ rp.instance = cp->instance;
+
+ if (err)
+ mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
+ mgmt_status(err));
+ else
+ mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
+ mgmt_status(err), &rp, sizeof(rp));
+
+ mgmt_pending_free(cmd);
+}
+
+static int add_ext_adv_data_sync(struct hci_dev *hdev, void *data)
+{
+ struct mgmt_pending_cmd *cmd = data;
+ struct mgmt_cp_add_ext_adv_data *cp = cmd->param;
+ int err;
+
+ if (ext_adv_capable(hdev)) {
+ err = hci_update_adv_data_sync(hdev, cp->instance);
+ if (err)
+ return err;
+
+ err = hci_update_scan_rsp_data_sync(hdev, cp->instance);
+ if (err)
+ return err;
+
+ return hci_enable_ext_advertising_sync(hdev, cp->instance);
+ }
+
+ return hci_schedule_adv_instance_sync(hdev, cp->instance, true);
+}
+
static int add_ext_adv_data(struct sock *sk, struct hci_dev *hdev, void *data,
u16 data_len)
{
@@ -8037,7 +8072,6 @@ static int add_ext_adv_data(struct sock *sk, struct hci_dev *hdev, void *data,
struct adv_info *adv_instance;
int err = 0;
struct mgmt_pending_cmd *cmd;
- struct hci_request req;
BT_DBG("%s", hdev->name);
@@ -8079,78 +8113,52 @@ static int add_ext_adv_data(struct sock *sk, struct hci_dev *hdev, void *data,
cp->data, cp->scan_rsp_len,
cp->data + cp->adv_data_len);
- /* We're good to go, update advertising data, parameters, and start
- * advertising.
- */
-
- hci_req_init(&req, hdev);
-
- hci_req_add(&req, HCI_OP_READ_LOCAL_NAME, 0, NULL);
-
- if (ext_adv_capable(hdev)) {
- __hci_req_update_adv_data(&req, cp->instance);
- __hci_req_update_scan_rsp_data(&req, cp->instance);
- __hci_req_enable_ext_advertising(&req, cp->instance);
-
- } else {
- /* If using software rotation, determine next instance to use */
-
- if (hdev->cur_adv_instance == cp->instance) {
- /* If the currently advertised instance is being changed
- * then cancel the current advertising and schedule the
- * next instance. If there is only one instance then the
- * overridden advertising data will be visible right
- * away
- */
- cancel_adv_timeout(hdev);
-
- next_instance = hci_get_next_instance(hdev,
- cp->instance);
- if (next_instance)
- schedule_instance = next_instance->instance;
- } else if (!hdev->adv_instance_timeout) {
- /* Immediately advertise the new instance if no other
- * instance is currently being advertised.
- */
- schedule_instance = cp->instance;
- }
+ /* If using software rotation, determine next instance to use */
+ if (hdev->cur_adv_instance == cp->instance) {
+ /* If the currently advertised instance is being changed
+ * then cancel the current advertising and schedule the
+ * next instance. If there is only one instance then the
+ * overridden advertising data will be visible right
+ * away
+ */
+ cancel_adv_timeout(hdev);
- /* If the HCI_ADVERTISING flag is set or there is no instance to
- * be advertised then we have no HCI communication to make.
- * Simply return.
+ next_instance = hci_get_next_instance(hdev, cp->instance);
+ if (next_instance)
+ schedule_instance = next_instance->instance;
+ } else if (!hdev->adv_instance_timeout) {
+ /* Immediately advertise the new instance if no other
+ * instance is currently being advertised.
*/
- if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
- !schedule_instance) {
- if (adv_instance->pending) {
- mgmt_advertising_added(sk, hdev, cp->instance);
- adv_instance->pending = false;
- }
- rp.instance = cp->instance;
- err = mgmt_cmd_complete(sk, hdev->id,
- MGMT_OP_ADD_EXT_ADV_DATA,
- MGMT_STATUS_SUCCESS, &rp,
- sizeof(rp));
- goto unlock;
- }
+ schedule_instance = cp->instance;
+ }
- err = __hci_req_schedule_adv_instance(&req, schedule_instance,
- true);
+ /* If the HCI_ADVERTISING flag is set or there is no instance to
+ * be advertised then we have no HCI communication to make.
+ * Simply return.
+ */
+ if (hci_dev_test_flag(hdev, HCI_ADVERTISING) || !schedule_instance) {
+ if (adv_instance->pending) {
+ mgmt_advertising_added(sk, hdev, cp->instance);
+ adv_instance->pending = false;
+ }
+ rp.instance = cp->instance;
+ err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_DATA,
+ MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
+ goto unlock;
}
- cmd = mgmt_pending_add(sk, MGMT_OP_ADD_EXT_ADV_DATA, hdev, data,
+ cmd = mgmt_pending_new(sk, MGMT_OP_ADD_EXT_ADV_DATA, hdev, data,
data_len);
if (!cmd) {
err = -ENOMEM;
goto clear_new_instance;
}
- if (!err)
- err = hci_req_run(&req, add_advertising_complete);
-
+ err = hci_cmd_sync_queue(hdev, add_ext_adv_data_sync, cmd,
+ add_ext_adv_data_complete);
if (err < 0) {
- err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_DATA,
- MGMT_STATUS_FAILED);
- mgmt_pending_remove(cmd);
+ mgmt_pending_free(cmd);
goto clear_new_instance;
}
@@ -8173,43 +8181,58 @@ static int add_ext_adv_data(struct sock *sk, struct hci_dev *hdev, void *data,
return err;
}
-static void remove_advertising_complete(struct hci_dev *hdev, u8 status,
- u16 opcode)
+static void remove_advertising_complete(struct hci_dev *hdev, void *data,
+ int err)
{
- struct mgmt_pending_cmd *cmd;
- struct mgmt_cp_remove_advertising *cp;
+ struct mgmt_pending_cmd *cmd = data;
+ struct mgmt_cp_remove_advertising *cp = cmd->param;
struct mgmt_rp_remove_advertising rp;
- bt_dev_dbg(hdev, "status %u", status);
+ bt_dev_dbg(hdev, "err %d", err);
- hci_dev_lock(hdev);
+ memset(&rp, 0, sizeof(rp));
+ rp.instance = cp->instance;
- /* A failure status here only means that we failed to disable
- * advertising. Otherwise, the advertising instance has been removed,
- * so report success.
- */
- cmd = pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev);
- if (!cmd)
- goto unlock;
+ if (err)
+ mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
+ mgmt_status(err));
+ else
+ mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
+ MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
- cp = cmd->param;
- rp.instance = cp->instance;
+ mgmt_pending_free(cmd);
+}
- mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, MGMT_STATUS_SUCCESS,
- &rp, sizeof(rp));
- mgmt_pending_remove(cmd);
+static int remove_advertising_sync(struct hci_dev *hdev, void *data)
+{
+ struct mgmt_pending_cmd *cmd = data;
+ struct mgmt_cp_remove_advertising *cp = cmd->param;
+ int err;
-unlock:
- hci_dev_unlock(hdev);
+ /* If we use extended advertising, instance is disabled and removed */
+ if (ext_adv_capable(hdev)) {
+ err = hci_disable_ext_adv_instance_sync(hdev, cp->instance);
+ if (err)
+ return err;
+
+ err = hci_remove_ext_adv_instance_sync(hdev, cp->instance);
+ if (err)
+ return err;
+ }
+
+ hci_clear_adv_instance_sync(hdev, cmd->sk, cp->instance, true);
+
+ if (list_empty(&hdev->adv_instances))
+ err = hci_disable_advertising_sync(hdev);
+
+ return err;
}
static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
void *data, u16 data_len)
{
struct mgmt_cp_remove_advertising *cp = data;
- struct mgmt_rp_remove_advertising rp;
struct mgmt_pending_cmd *cmd;
- struct hci_request req;
int err;
bt_dev_dbg(hdev, "sock %p", sk);
@@ -8244,44 +8267,17 @@ static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
goto unlock;
}
- hci_req_init(&req, hdev);
-
- /* If we use extended advertising, instance is disabled and removed */
- if (ext_adv_capable(hdev)) {
- __hci_req_disable_ext_adv_instance(&req, cp->instance);
- __hci_req_remove_ext_adv_instance(&req, cp->instance);
- }
-
- hci_req_clear_adv_instance(hdev, sk, &req, cp->instance, true);
-
- if (list_empty(&hdev->adv_instances))
- __hci_req_disable_advertising(&req);
-
- /* If no HCI commands have been collected so far or the HCI_ADVERTISING
- * flag is set or the device isn't powered then we have no HCI
- * communication to make. Simply return.
- */
- if (skb_queue_empty(&req.cmd_q) ||
- !hdev_is_powered(hdev) ||
- hci_dev_test_flag(hdev, HCI_ADVERTISING)) {
- hci_req_purge(&req);
- rp.instance = cp->instance;
- err = mgmt_cmd_complete(sk, hdev->id,
- MGMT_OP_REMOVE_ADVERTISING,
- MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
- goto unlock;
- }
-
- cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_ADVERTISING, hdev, data,
+ cmd = mgmt_pending_new(sk, MGMT_OP_REMOVE_ADVERTISING, hdev, data,
data_len);
if (!cmd) {
err = -ENOMEM;
goto unlock;
}
- err = hci_req_run(&req, remove_advertising_complete);
+ err = hci_cmd_sync_queue(hdev, remove_advertising_sync, cmd,
+ remove_advertising_complete);
if (err < 0)
- mgmt_pending_remove(cmd);
+ mgmt_pending_free(cmd);
unlock:
hci_dev_unlock(hdev);
--
2.31.1
From: Luiz Augusto von Dentz <[email protected]>
This make use of hci_cmd_sync_queue for the following MGMT commands:
Add Device
Remove Device
Tested with:
mgmt-tester -s "Add Device"
Test Summary
------------
Add Device - Invalid Params 1 Passed 0.016 seconds
Add Device - Invalid Params 2 Passed 0.013 seconds
Add Device - Invalid Params 3 Passed 0.015 seconds
Add Device - Invalid Params 4 Passed 0.013 seconds
Add Device - Success 1 Passed 0.015 seconds
Add Device - Success 2 Passed 0.014 seconds
Add Device - Success 3 Passed 0.015 seconds
Add Device - Success 4 Passed 0.018 seconds
Add Device - Success 5 Passed 0.017 seconds
Add Device - Success 6 - Add to whitelist Passed 0.019 seconds
Add Device - Success 7 - Add to resolv list Passed 0.021 seconds
Add Device - Success 8 - Enable resolv list Passed 0.021 seconds
Total: 12, Passed: 12 (100.0%), Failed: 0, Not Run: 0
Overall execution time: 0.209 seconds
mgmt-tester -s "Remove Device"
Test Summary
------------
Remove Device - Invalid Params 1 Passed 0.017 seconds
Remove Device - Invalid Params 2 Passed 0.013 seconds
Remove Device - Invalid Params 3 Passed 0.014 seconds
Remove Device - Success 1 Passed 0.017 seconds
Remove Device - Success 2 Passed 0.017 seconds
Remove Device - Success 3 Passed 1.034 seconds
Remove Device - Success 4 Passed 1.036 seconds
Remove Device - Success 5 Passed 1.021 seconds
Remove Device - Success 6 - All Devices Passed 1.023 seconds
Remove Device - Success 7 - Remove from whitelist Passed 0.026 seconds
Remove Device - Success 8 - Remove from resolv list Passed 0.023 seconds
Total: 11, Passed: 11 (100.0%), Failed: 0, Not Run: 0
Overall execution time: 4.26 seconds
Signed-off-by: Luiz Augusto von Dentz <[email protected]>
---
net/bluetooth/hci_sync.c | 601 +++++++++++++++++++++++++++++++++++++++
net/bluetooth/hci_sync.h | 2 +
net/bluetooth/mgmt.c | 19 +-
3 files changed, 618 insertions(+), 4 deletions(-)
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index e45551fba809..336165e3b1a5 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -932,3 +932,604 @@ int hci_disable_advertising_sync(struct hci_dev *hdev)
return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_ADV_ENABLE,
sizeof(enable), &enable, HCI_CMD_TIMEOUT);
}
+
+static int hci_le_set_ext_scan_enable_sync(struct hci_dev *hdev, u8 val,
+ u8 filter_dup)
+{
+ struct hci_cp_le_set_ext_scan_enable cp;
+
+ memset(&cp, 0, sizeof(cp));
+ cp.enable = val;
+ cp.filter_dup = filter_dup;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
+static int hci_le_set_scan_enable_sync(struct hci_dev *hdev, u8 val,
+ u8 filter_dup)
+{
+ struct hci_cp_le_set_scan_enable cp;
+
+ if (use_ext_scan(hdev))
+ return hci_le_set_ext_scan_enable_sync(hdev, val, filter_dup);
+
+ memset(&cp, 0, sizeof(cp));
+ cp.enable = val;
+ cp.filter_dup = filter_dup;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_SCAN_ENABLE,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
+static int hci_le_set_addr_resolution_enable_sync(struct hci_dev *hdev, u8 val)
+{
+ if (!use_ll_privacy(hdev) ||
+ !hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ return 0;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
+ sizeof(val), &val, HCI_CMD_TIMEOUT);
+}
+
+int hci_scan_disable_sync(struct hci_dev *hdev, bool rpa_le_conn)
+{
+ int err;
+
+ /* If controller is not scanning we are done. */
+ if (!hci_dev_test_flag(hdev, HCI_LE_SCAN))
+ return 0;
+
+ if (hdev->scanning_paused) {
+ bt_dev_dbg(hdev, "Scanning is paused for suspend");
+ return 0;
+ }
+
+ if (hdev->suspended)
+ set_bit(SUSPEND_SCAN_DISABLE, hdev->suspend_tasks);
+
+ err = hci_le_set_scan_enable_sync(hdev, LE_SCAN_DISABLE, 0x00);
+ if (err) {
+ bt_dev_err(hdev, "Unable to disable scanning: %d", err);
+ return err;
+ }
+
+ if (rpa_le_conn) {
+ err = hci_le_set_addr_resolution_enable_sync(hdev, 0x00);
+ if (err)
+ bt_dev_err(hdev, "Unable to disable LL privacy: %d",
+ err);
+ }
+
+ return err;
+}
+
+static bool scan_use_rpa(struct hci_dev *hdev)
+{
+ return hci_dev_test_flag(hdev, HCI_PRIVACY);
+}
+
+static void hci_start_interleave_scan(struct hci_dev *hdev)
+{
+ hdev->interleave_scan_state = INTERLEAVE_SCAN_NO_FILTER;
+ queue_delayed_work(hdev->req_workqueue,
+ &hdev->interleave_scan, 0);
+}
+
+static bool is_interleave_scanning(struct hci_dev *hdev)
+{
+ return hdev->interleave_scan_state != INTERLEAVE_SCAN_NONE;
+}
+
+static void cancel_interleave_scan(struct hci_dev *hdev)
+{
+ bt_dev_dbg(hdev, "cancelling interleave scan");
+
+ cancel_delayed_work_sync(&hdev->interleave_scan);
+
+ hdev->interleave_scan_state = INTERLEAVE_SCAN_NONE;
+}
+
+/* Return true if interleave_scan wasn't started until exiting this function,
+ * otherwise, return false
+ */
+static bool hci_update_interleaved_scan_sync(struct hci_dev *hdev)
+{
+ /* Do interleaved scan only if all of the following are true:
+ * - There is at least one ADV monitor
+ * - At least one pending LE connection or one device to be scanned for
+ * - Monitor offloading is not supported
+ * If so, we should alternate between allowlist scan and one without
+ * any filters to save power.
+ */
+ bool use_interleaving = hci_is_adv_monitoring(hdev) &&
+ !(list_empty(&hdev->pend_le_conns) &&
+ list_empty(&hdev->pend_le_reports)) &&
+ hci_get_adv_monitor_offload_ext(hdev) ==
+ HCI_ADV_MONITOR_EXT_NONE;
+ bool is_interleaving = is_interleave_scanning(hdev);
+
+ if (use_interleaving && !is_interleaving) {
+ hci_start_interleave_scan(hdev);
+ bt_dev_dbg(hdev, "starting interleave scan");
+ return true;
+ }
+
+ if (!use_interleaving && is_interleaving)
+ cancel_interleave_scan(hdev);
+
+ return false;
+}
+
+/* Removes connection to resolve list if needed.*/
+static int hci_le_del_resolve_list_sync(struct hci_dev *hdev,
+ bdaddr_t *bdaddr, u8 bdaddr_type)
+{
+ struct hci_cp_le_del_from_resolv_list cp;
+ struct smp_irk *irk;
+
+ if (!use_ll_privacy(hdev) ||
+ !hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ return 0;
+
+ irk = hci_find_irk_by_addr(hdev, bdaddr, bdaddr_type);
+ if (!irk)
+ return 0;
+
+ cp.bdaddr_type = bdaddr_type;
+ bacpy(&cp.bdaddr, bdaddr);
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
+static int hci_le_del_accept_list_sync(struct hci_dev *hdev,
+ bdaddr_t *bdaddr, u8 bdaddr_type)
+{
+ struct hci_cp_le_del_from_accept_list cp;
+ int err;
+
+ cp.bdaddr_type = bdaddr_type;
+ bacpy(&cp.bdaddr, bdaddr);
+
+ err = __hci_cmd_sync_status(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+ if (err) {
+ bt_dev_err(hdev, "Unable to remove from allow list: %d", err);
+ return err;
+ }
+
+ bt_dev_dbg(hdev, "Remove %pMR (0x%x) from allow list", &cp.bdaddr,
+ cp.bdaddr_type);
+
+ return hci_le_del_resolve_list_sync(hdev, &cp.bdaddr, cp.bdaddr_type);
+}
+
+/* Adds connection to resolve list if needed.*/
+static int hci_le_add_resolve_list_sync(struct hci_dev *hdev,
+ struct hci_conn_params *params)
+{
+ struct hci_cp_le_add_to_resolv_list cp;
+ struct smp_irk *irk;
+
+ if (!use_ll_privacy(hdev) ||
+ !hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ return 0;
+
+ irk = hci_find_irk_by_addr(hdev, ¶ms->addr, params->addr_type);
+ if (!irk)
+ return 0;
+
+ cp.bdaddr_type = params->addr_type;
+ bacpy(&cp.bdaddr, ¶ms->addr);
+ memcpy(cp.peer_irk, irk->val, 16);
+
+ if (hci_dev_test_flag(hdev, HCI_PRIVACY))
+ memcpy(cp.local_irk, hdev->irk, 16);
+ else
+ memset(cp.local_irk, 0, 16);
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
+/* Adds connection to allow list if needed.*/
+static int hci_le_add_allow_list_sync(struct hci_dev *hdev,
+ struct hci_conn_params *params,
+ u8 *num_entries, bool allow_rpa)
+{
+ struct hci_cp_le_add_to_accept_list cp;
+ int err;
+
+ /* Already in accept list */
+ if (hci_bdaddr_list_lookup(&hdev->le_accept_list, ¶ms->addr,
+ params->addr_type))
+ return 0;
+
+ /* Select filter policy to accept all advertising */
+ if (*num_entries >= hdev->le_accept_list_size)
+ return -ENOSPC;
+
+ /* Accept list can not be used with RPAs */
+ if (!allow_rpa &&
+ !hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) &&
+ hci_find_irk_by_addr(hdev, ¶ms->addr, params->addr_type)) {
+ return -EINVAL;
+ }
+
+ /* During suspend, only wakeable devices can be in acceptlist */
+ if (hdev->suspended && !hci_conn_test_flag(HCI_CONN_FLAG_REMOTE_WAKEUP,
+ params->current_flags))
+ return 0;
+
+ *num_entries += 1;
+ cp.bdaddr_type = params->addr_type;
+ bacpy(&cp.bdaddr, ¶ms->addr);
+
+ err = __hci_cmd_sync_status(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+ if (err) {
+ bt_dev_err(hdev, "Unable to add to allow list: %d", err);
+ return err;
+ }
+
+ bt_dev_dbg(hdev, "Add %pMR (0x%x) to allow list", &cp.bdaddr,
+ cp.bdaddr_type);
+
+ return hci_le_add_resolve_list_sync(hdev, params);
+}
+
+static u8 hci_update_accept_list_sync(struct hci_dev *hdev)
+{
+ struct hci_conn_params *params;
+ struct bdaddr_list *b, *t;
+ u8 num_entries = 0;
+ bool pend_conn, pend_report;
+ /* We allow acceptlisting even with RPAs in suspend. In the worst case,
+ * we won't be able to wake from devices that use the privacy1.2
+ * features. Additionally, once we support privacy1.2 and IRK
+ * offloading, we can update this to also check for those conditions.
+ */
+ bool allow_rpa = hdev->suspended;
+
+ if (use_ll_privacy(hdev) &&
+ hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ allow_rpa = true;
+
+ /* Go through the current accept list programmed into the
+ * controller one by one and check if that address is still
+ * in the list of pending connections or list of devices to
+ * report. If not present in either list, then remove it from
+ * the controller.
+ */
+ list_for_each_entry_safe(b, t, &hdev->le_accept_list, list) {
+ pend_conn = hci_pend_le_action_lookup(&hdev->pend_le_conns,
+ &b->bdaddr,
+ b->bdaddr_type);
+ pend_report = hci_pend_le_action_lookup(&hdev->pend_le_reports,
+ &b->bdaddr,
+ b->bdaddr_type);
+
+ /* If the device is not likely to connect or report,
+ * remove it from the acceptlist.
+ */
+ if (!pend_conn && !pend_report) {
+ hci_le_del_accept_list_sync(hdev, &b->bdaddr,
+ b->bdaddr_type);
+ continue;
+ }
+
+ /* Accept list can not be used with RPAs */
+ if (!allow_rpa &&
+ !hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) &&
+ hci_find_irk_by_addr(hdev, &b->bdaddr, b->bdaddr_type)) {
+ return 0x00;
+ }
+
+ num_entries++;
+ }
+
+ /* Since all no longer valid accept list entries have been
+ * removed, walk through the list of pending connections
+ * and ensure that any new device gets programmed into
+ * the controller.
+ *
+ * If the list of the devices is larger than the list of
+ * available accept list entries in the controller, then
+ * just abort and return filer policy value to not use the
+ * accept list.
+ */
+ list_for_each_entry(params, &hdev->pend_le_conns, action) {
+ if (hci_le_add_allow_list_sync(hdev, params, &num_entries,
+ allow_rpa))
+ return 0x00;
+ }
+
+ /* After adding all new pending connections, walk through
+ * the list of pending reports and also add these to the
+ * accept list if there is still space. Abort if space runs out.
+ */
+ list_for_each_entry(params, &hdev->pend_le_reports, action) {
+ if (hci_le_add_allow_list_sync(hdev, params, &num_entries,
+ allow_rpa))
+ return 0x00;
+ }
+
+ /* Use the allowlist unless the following conditions are all true:
+ * - We are not currently suspending
+ * - There are 1 or more ADV monitors registered and it's not offloaded
+ * - Interleaved scanning is not currently using the allowlist
+ */
+ if (!idr_is_empty(&hdev->adv_monitors_idr) && !hdev->suspended &&
+ hci_get_adv_monitor_offload_ext(hdev) == HCI_ADV_MONITOR_EXT_NONE &&
+ hdev->interleave_scan_state != INTERLEAVE_SCAN_ALLOWLIST)
+ return 0x00;
+
+ /* Select filter policy to use accept list */
+ return 0x01;
+}
+
+/* Returns true if an le connection is in the scanning state */
+static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
+{
+ struct hci_conn_hash *h = &hdev->conn_hash;
+ struct hci_conn *c;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(c, &h->list, list) {
+ if (c->type == LE_LINK && c->state == BT_CONNECT &&
+ test_bit(HCI_CONN_SCANNING, &c->flags)) {
+ rcu_read_unlock();
+ return true;
+ }
+ }
+
+ rcu_read_unlock();
+
+ return false;
+}
+
+static int hci_le_set_ext_scan_param_sync(struct hci_dev *hdev, u8 type,
+ u16 interval, u16 window,
+ u8 own_addr_type, u8 filter_policy)
+{
+ struct hci_cp_le_set_ext_scan_params *cp;
+ struct hci_cp_le_scan_phy_params *phy;
+ u8 data[sizeof(*cp) + sizeof(*phy) * 2];
+ u8 num_phy = 0;
+
+ cp = (void *)data;
+ phy = (void *)cp->data;
+
+ memset(data, 0, sizeof(data));
+
+ cp->own_addr_type = own_addr_type;
+ cp->filter_policy = filter_policy;
+
+ if (scan_1m(hdev) || scan_2m(hdev)) {
+ cp->scanning_phys |= LE_SCAN_PHY_1M;
+
+ phy->type = type;
+ phy->interval = cpu_to_le16(interval);
+ phy->window = cpu_to_le16(window);
+
+ num_phy++;
+ phy++;
+ }
+
+ if (scan_coded(hdev)) {
+ cp->scanning_phys |= LE_SCAN_PHY_CODED;
+
+ phy->type = type;
+ phy->interval = cpu_to_le16(interval);
+ phy->window = cpu_to_le16(window);
+
+ num_phy++;
+ phy++;
+ }
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS,
+ sizeof(*cp) + sizeof(*phy) * num_phy,
+ data, HCI_CMD_TIMEOUT);
+}
+
+static int hci_le_set_scan_param_sync(struct hci_dev *hdev, u8 type,
+ u16 interval, u16 window,
+ u8 own_addr_type, u8 filter_policy)
+{
+ struct hci_cp_le_set_scan_param cp;
+
+ if (use_ext_scan(hdev))
+ return hci_le_set_ext_scan_param_sync(hdev, type, interval,
+ window, own_addr_type,
+ filter_policy);
+
+ memset(&cp, 0, sizeof(cp));
+ cp.type = type;
+ cp.interval = cpu_to_le16(interval);
+ cp.window = cpu_to_le16(window);
+ cp.own_address_type = own_addr_type;
+ cp.filter_policy = filter_policy;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_SCAN_PARAM,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+}
+
+static int hci_start_scan_sync(struct hci_dev *hdev, u8 type, u16 interval,
+ u16 window, u8 own_addr_type, u8 filter_policy,
+ bool addr_resolv)
+{
+ int err;
+
+ if (hdev->scanning_paused) {
+ bt_dev_dbg(hdev, "Scanning is paused for suspend");
+ return 0;
+ }
+
+ if (addr_resolv) {
+ err = hci_le_set_addr_resolution_enable_sync(hdev, 0x01);
+ if (err)
+ return err;
+ }
+
+ err = hci_le_set_scan_param_sync(hdev, type, interval, window,
+ own_addr_type, filter_policy);
+ if (err)
+ return err;
+
+ return hci_le_set_scan_enable_sync(hdev, LE_SCAN_ENABLE,
+ LE_SCAN_FILTER_DUP_ENABLE);
+}
+
+/* Ensure to call hci_scan_disable_sync first to disable the controller based
+ * address resolution to be able to reconfigure resolving list.
+ */
+int hci_passive_scan_sync(struct hci_dev *hdev)
+{
+ u8 own_addr_type;
+ u8 filter_policy;
+ u16 window, interval;
+ /* Background scanning should run with address resolution */
+ bool addr_resolv = true;
+
+ if (hdev->scanning_paused) {
+ bt_dev_dbg(hdev, "Scanning is paused for suspend");
+ return 0;
+ }
+
+ /* Set require_privacy to false since no SCAN_REQ are send
+ * during passive scanning. Not using an non-resolvable address
+ * here is important so that peer devices using direct
+ * advertising with our address will be correctly reported
+ * by the controller.
+ */
+ if (hci_update_random_address_sync(hdev, false, scan_use_rpa(hdev),
+ &own_addr_type))
+ return 0;
+
+ if (hdev->enable_advmon_interleave_scan &&
+ hci_update_interleaved_scan_sync(hdev))
+ return 0;
+
+ bt_dev_dbg(hdev, "interleave state %d", hdev->interleave_scan_state);
+ /* Adding or removing entries from the accept list must
+ * happen before enabling scanning. The controller does
+ * not allow accept list modification while scanning.
+ */
+ filter_policy = hci_update_accept_list_sync(hdev);
+
+ /* When the controller is using random resolvable addresses and
+ * with that having LE privacy enabled, then controllers with
+ * Extended Scanner Filter Policies support can now enable support
+ * for handling directed advertising.
+ *
+ * So instead of using filter polices 0x00 (no acceptlist)
+ * and 0x01 (acceptlist enabled) use the new filter policies
+ * 0x02 (no acceptlist) and 0x03 (acceptlist enabled).
+ */
+ if (hci_dev_test_flag(hdev, HCI_PRIVACY) &&
+ (hdev->le_features[0] & HCI_LE_EXT_SCAN_POLICY))
+ filter_policy |= 0x02;
+
+ if (hdev->suspended) {
+ window = hdev->le_scan_window_suspend;
+ interval = hdev->le_scan_int_suspend;
+
+ set_bit(SUSPEND_SCAN_ENABLE, hdev->suspend_tasks);
+ } else if (hci_is_le_conn_scanning(hdev)) {
+ window = hdev->le_scan_window_connect;
+ interval = hdev->le_scan_int_connect;
+ } else if (hci_is_adv_monitoring(hdev)) {
+ window = hdev->le_scan_window_adv_monitor;
+ interval = hdev->le_scan_int_adv_monitor;
+ } else {
+ window = hdev->le_scan_window;
+ interval = hdev->le_scan_interval;
+ }
+
+ bt_dev_dbg(hdev, "LE passive scan with acceptlist = %d", filter_policy);
+
+ return hci_start_scan_sync(hdev, LE_SCAN_PASSIVE, interval, window,
+ own_addr_type, filter_policy, addr_resolv);
+}
+
+/* This function controls the background scanning based on hdev->pend_le_conns
+ * list. If there are pending LE connection we start the background scanning,
+ * otherwise we stop it.
+ */
+int hci_update_background_scan_sync(struct hci_dev *hdev)
+{
+ int err;
+
+ if (!test_bit(HCI_UP, &hdev->flags) ||
+ test_bit(HCI_INIT, &hdev->flags) ||
+ hci_dev_test_flag(hdev, HCI_SETUP) ||
+ hci_dev_test_flag(hdev, HCI_CONFIG) ||
+ hci_dev_test_flag(hdev, HCI_AUTO_OFF) ||
+ hci_dev_test_flag(hdev, HCI_UNREGISTER))
+ return 0;
+
+ /* No point in doing scanning if LE support hasn't been enabled */
+ if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
+ return 0;
+
+ /* If discovery is active don't interfere with it */
+ if (hdev->discovery.state != DISCOVERY_STOPPED)
+ return 0;
+
+ /* Reset RSSI and UUID filters when starting background scanning
+ * since these filters are meant for service discovery only.
+ *
+ * The Start Discovery and Start Service Discovery operations
+ * ensure to set proper values for RSSI threshold and UUID
+ * filter list. So it is safe to just reset them here.
+ */
+ hci_discovery_filter_clear(hdev);
+
+ bt_dev_dbg(hdev, "ADV monitoring is %s",
+ hci_is_adv_monitoring(hdev) ? "on" : "off");
+
+ if (list_empty(&hdev->pend_le_conns) &&
+ list_empty(&hdev->pend_le_reports) &&
+ !hci_is_adv_monitoring(hdev)) {
+ /* If there is no pending LE connections or devices
+ * to be scanned for or no ADV monitors, we should stop the
+ * background scanning.
+ */
+
+ bt_dev_dbg(hdev, "stopping background scanning");
+
+ err = hci_scan_disable_sync(hdev, false);
+ if (err)
+ bt_dev_err(hdev, "stop background scanning failed: %d",
+ err);
+ } else {
+ /* If there is at least one pending LE connection, we should
+ * keep the background scan running.
+ */
+
+ /* If controller is connecting, we should not start scanning
+ * since some controllers are not able to scan and connect at
+ * the same time.
+ */
+ if (hci_lookup_le_connect(hdev))
+ return 0;
+
+ err = hci_scan_disable_sync(hdev, false);
+ if (err) {
+ bt_dev_err(hdev, "stop background scanning failed: %d",
+ err);
+ return err;
+ }
+
+ bt_dev_dbg(hdev, "start background scanning");
+
+ err = hci_passive_scan_sync(hdev);
+ if (err)
+ bt_dev_err(hdev, "start background scanning failed: %d",
+ err);
+ }
+
+ return err;
+}
diff --git a/net/bluetooth/hci_sync.h b/net/bluetooth/hci_sync.h
index 5e4392a93607..5ef02b1cb8c1 100644
--- a/net/bluetooth/hci_sync.h
+++ b/net/bluetooth/hci_sync.h
@@ -29,3 +29,5 @@ int hci_remove_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance);
void hci_clear_adv_instance_sync(struct hci_dev *hdev, struct sock *sk,
u8 instance, bool force);
int hci_disable_advertising_sync(struct hci_dev *hdev);
+
+int hci_update_background_scan_sync(struct hci_dev *hdev);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index c9c90e3d2647..9b89c0e7f6da 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -6700,6 +6700,11 @@ static void device_added(struct sock *sk, struct hci_dev *hdev,
mgmt_event(MGMT_EV_DEVICE_ADDED, hdev, &ev, sizeof(ev), sk);
}
+static int add_device_sync(struct hci_dev *hdev, void *data)
+{
+ return hci_update_background_scan_sync(hdev);
+}
+
static int add_device(struct sock *sk, struct hci_dev *hdev,
void *data, u16 len)
{
@@ -6782,7 +6787,9 @@ static int add_device(struct sock *sk, struct hci_dev *hdev,
current_flags = params->current_flags;
}
- hci_update_background_scan(hdev);
+ err = hci_cmd_sync_queue(hdev, add_device_sync, NULL, NULL);
+ if (err < 0)
+ goto unlock;
added:
device_added(sk, hdev, &cp->addr.bdaddr, cp->addr.type, cp->action);
@@ -6809,6 +6816,11 @@ static void device_removed(struct sock *sk, struct hci_dev *hdev,
mgmt_event(MGMT_EV_DEVICE_REMOVED, hdev, &ev, sizeof(ev), sk);
}
+static int remove_device_sync(struct hci_dev *hdev, void *data)
+{
+ return hci_update_background_scan_sync(hdev);
+}
+
static int remove_device(struct sock *sk, struct hci_dev *hdev,
void *data, u16 len)
{
@@ -6888,7 +6900,6 @@ static int remove_device(struct sock *sk, struct hci_dev *hdev,
list_del(¶ms->action);
list_del(¶ms->list);
kfree(params);
- hci_update_background_scan(hdev);
device_removed(sk, hdev, &cp->addr.bdaddr, cp->addr.type);
} else {
@@ -6925,10 +6936,10 @@ static int remove_device(struct sock *sk, struct hci_dev *hdev,
}
bt_dev_dbg(hdev, "All LE connection parameters were removed");
-
- hci_update_background_scan(hdev);
}
+ hci_cmd_sync_queue(hdev, remove_device_sync, NULL, NULL);
+
complete:
err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_DEVICE,
MGMT_STATUS_SUCCESS, &cp->addr,
--
2.31.1
From: Luiz Augusto von Dentz <[email protected]>
This moves functions manipulating EIR/Adv Data to its own file so it
can be reused by other files.
Signed-off-by: Luiz Augusto von Dentz <[email protected]>
---
include/net/bluetooth/hci_core.h | 39 +--
net/bluetooth/Makefile | 2 +-
net/bluetooth/eir.c | 335 +++++++++++++++++++++++++
net/bluetooth/eir.h | 72 ++++++
net/bluetooth/hci_core.c | 54 ++++
net/bluetooth/hci_event.c | 1 +
net/bluetooth/hci_request.c | 416 ++-----------------------------
net/bluetooth/hci_request.h | 23 --
net/bluetooth/mgmt.c | 3 +-
9 files changed, 482 insertions(+), 463 deletions(-)
create mode 100644 net/bluetooth/eir.c
create mode 100644 net/bluetooth/eir.h
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 7b8dac2131e7..f672b8390463 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1360,6 +1360,8 @@ int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
u16 scan_rsp_len, u8 *scan_rsp_data);
int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
+u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
+bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
void hci_adv_monitors_clear(struct hci_dev *hdev);
void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
@@ -1605,43 +1607,6 @@ static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
mutex_unlock(&hci_cb_list_lock);
}
-static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
- size_t *data_len)
-{
- size_t parsed = 0;
-
- if (eir_len < 2)
- return NULL;
-
- while (parsed < eir_len - 1) {
- u8 field_len = eir[0];
-
- if (field_len == 0)
- break;
-
- parsed += field_len + 1;
-
- if (parsed > eir_len)
- break;
-
- if (eir[1] != type) {
- eir += field_len + 1;
- continue;
- }
-
- /* Zero length data */
- if (field_len == 1)
- return NULL;
-
- if (data_len)
- *data_len = field_len - 1;
-
- return &eir[2];
- }
-
- return NULL;
-}
-
static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
{
if (addr_type != ADDR_LE_DEV_RANDOM)
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index cc0995301f93..0276e7d5d7ad 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -14,7 +14,7 @@ bluetooth_6lowpan-y := 6lowpan.o
bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \
hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o lib.o \
- ecdh_helper.o hci_request.o mgmt_util.o mgmt_config.o
+ ecdh_helper.o eir.o hci_request.o mgmt_util.o mgmt_config.o
bluetooth-$(CONFIG_BT_BREDR) += sco.o
bluetooth-$(CONFIG_BT_HS) += a2mp.o amp.o
diff --git a/net/bluetooth/eir.c b/net/bluetooth/eir.c
new file mode 100644
index 000000000000..7e930f77ecab
--- /dev/null
+++ b/net/bluetooth/eir.c
@@ -0,0 +1,335 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2021 Intel Corporation
+ */
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/mgmt.h>
+
+#include "eir.h"
+
+#define PNP_INFO_SVCLASS_ID 0x1200
+
+u8 eir_append_local_name(struct hci_dev *hdev, u8 *ptr, u8 ad_len)
+{
+ size_t short_len;
+ size_t complete_len;
+
+ /* no space left for name (+ NULL + type + len) */
+ if ((HCI_MAX_AD_LENGTH - ad_len) < HCI_MAX_SHORT_NAME_LENGTH + 3)
+ return ad_len;
+
+ /* use complete name if present and fits */
+ complete_len = strlen(hdev->dev_name);
+ if (complete_len && complete_len <= HCI_MAX_SHORT_NAME_LENGTH)
+ return eir_append_data(ptr, ad_len, EIR_NAME_COMPLETE,
+ hdev->dev_name, complete_len + 1);
+
+ /* use short name if present */
+ short_len = strlen(hdev->short_name);
+ if (short_len)
+ return eir_append_data(ptr, ad_len, EIR_NAME_SHORT,
+ hdev->short_name, short_len + 1);
+
+ /* use shortened full name if present, we already know that name
+ * is longer then HCI_MAX_SHORT_NAME_LENGTH
+ */
+ if (complete_len) {
+ u8 name[HCI_MAX_SHORT_NAME_LENGTH + 1];
+
+ memcpy(name, hdev->dev_name, HCI_MAX_SHORT_NAME_LENGTH);
+ name[HCI_MAX_SHORT_NAME_LENGTH] = '\0';
+
+ return eir_append_data(ptr, ad_len, EIR_NAME_SHORT, name,
+ sizeof(name));
+ }
+
+ return ad_len;
+}
+
+u8 eir_append_appearance(struct hci_dev *hdev, u8 *ptr, u8 ad_len)
+{
+ return eir_append_le16(ptr, ad_len, EIR_APPEARANCE, hdev->appearance);
+}
+
+static u8 *create_uuid16_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
+{
+ u8 *ptr = data, *uuids_start = NULL;
+ struct bt_uuid *uuid;
+
+ if (len < 4)
+ return ptr;
+
+ list_for_each_entry(uuid, &hdev->uuids, list) {
+ u16 uuid16;
+
+ if (uuid->size != 16)
+ continue;
+
+ uuid16 = get_unaligned_le16(&uuid->uuid[12]);
+ if (uuid16 < 0x1100)
+ continue;
+
+ if (uuid16 == PNP_INFO_SVCLASS_ID)
+ continue;
+
+ if (!uuids_start) {
+ uuids_start = ptr;
+ uuids_start[0] = 1;
+ uuids_start[1] = EIR_UUID16_ALL;
+ ptr += 2;
+ }
+
+ /* Stop if not enough space to put next UUID */
+ if ((ptr - data) + sizeof(u16) > len) {
+ uuids_start[1] = EIR_UUID16_SOME;
+ break;
+ }
+
+ *ptr++ = (uuid16 & 0x00ff);
+ *ptr++ = (uuid16 & 0xff00) >> 8;
+ uuids_start[0] += sizeof(uuid16);
+ }
+
+ return ptr;
+}
+
+static u8 *create_uuid32_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
+{
+ u8 *ptr = data, *uuids_start = NULL;
+ struct bt_uuid *uuid;
+
+ if (len < 6)
+ return ptr;
+
+ list_for_each_entry(uuid, &hdev->uuids, list) {
+ if (uuid->size != 32)
+ continue;
+
+ if (!uuids_start) {
+ uuids_start = ptr;
+ uuids_start[0] = 1;
+ uuids_start[1] = EIR_UUID32_ALL;
+ ptr += 2;
+ }
+
+ /* Stop if not enough space to put next UUID */
+ if ((ptr - data) + sizeof(u32) > len) {
+ uuids_start[1] = EIR_UUID32_SOME;
+ break;
+ }
+
+ memcpy(ptr, &uuid->uuid[12], sizeof(u32));
+ ptr += sizeof(u32);
+ uuids_start[0] += sizeof(u32);
+ }
+
+ return ptr;
+}
+
+static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
+{
+ u8 *ptr = data, *uuids_start = NULL;
+ struct bt_uuid *uuid;
+
+ if (len < 18)
+ return ptr;
+
+ list_for_each_entry(uuid, &hdev->uuids, list) {
+ if (uuid->size != 128)
+ continue;
+
+ if (!uuids_start) {
+ uuids_start = ptr;
+ uuids_start[0] = 1;
+ uuids_start[1] = EIR_UUID128_ALL;
+ ptr += 2;
+ }
+
+ /* Stop if not enough space to put next UUID */
+ if ((ptr - data) + 16 > len) {
+ uuids_start[1] = EIR_UUID128_SOME;
+ break;
+ }
+
+ memcpy(ptr, uuid->uuid, 16);
+ ptr += 16;
+ uuids_start[0] += 16;
+ }
+
+ return ptr;
+}
+
+void eir_create(struct hci_dev *hdev, u8 *data)
+{
+ u8 *ptr = data;
+ size_t name_len;
+
+ name_len = strlen(hdev->dev_name);
+
+ if (name_len > 0) {
+ /* EIR Data type */
+ if (name_len > 48) {
+ name_len = 48;
+ ptr[1] = EIR_NAME_SHORT;
+ } else {
+ ptr[1] = EIR_NAME_COMPLETE;
+ }
+
+ /* EIR Data length */
+ ptr[0] = name_len + 1;
+
+ memcpy(ptr + 2, hdev->dev_name, name_len);
+
+ ptr += (name_len + 2);
+ }
+
+ if (hdev->inq_tx_power != HCI_TX_POWER_INVALID) {
+ ptr[0] = 2;
+ ptr[1] = EIR_TX_POWER;
+ ptr[2] = (u8)hdev->inq_tx_power;
+
+ ptr += 3;
+ }
+
+ if (hdev->devid_source > 0) {
+ ptr[0] = 9;
+ ptr[1] = EIR_DEVICE_ID;
+
+ put_unaligned_le16(hdev->devid_source, ptr + 2);
+ put_unaligned_le16(hdev->devid_vendor, ptr + 4);
+ put_unaligned_le16(hdev->devid_product, ptr + 6);
+ put_unaligned_le16(hdev->devid_version, ptr + 8);
+
+ ptr += 10;
+ }
+
+ ptr = create_uuid16_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
+ ptr = create_uuid32_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
+ ptr = create_uuid128_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
+}
+
+u8 eir_create_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr)
+{
+ struct adv_info *adv = NULL;
+ u8 ad_len = 0, flags = 0;
+ u32 instance_flags;
+
+ /* Return 0 when the current instance identifier is invalid. */
+ if (instance) {
+ adv = hci_find_adv_instance(hdev, instance);
+ if (!adv)
+ return 0;
+ }
+
+ instance_flags = hci_adv_instance_flags(hdev, instance);
+
+ /* If instance already has the flags set skip adding it once
+ * again.
+ */
+ if (adv && eir_get_data(adv->adv_data, adv->adv_data_len, EIR_FLAGS,
+ NULL))
+ goto skip_flags;
+
+ /* The Add Advertising command allows userspace to set both the general
+ * and limited discoverable flags.
+ */
+ if (instance_flags & MGMT_ADV_FLAG_DISCOV)
+ flags |= LE_AD_GENERAL;
+
+ if (instance_flags & MGMT_ADV_FLAG_LIMITED_DISCOV)
+ flags |= LE_AD_LIMITED;
+
+ if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
+ flags |= LE_AD_NO_BREDR;
+
+ if (flags || (instance_flags & MGMT_ADV_FLAG_MANAGED_FLAGS)) {
+ /* If a discovery flag wasn't provided, simply use the global
+ * settings.
+ */
+ if (!flags)
+ flags |= mgmt_get_adv_discov_flags(hdev);
+
+ /* If flags would still be empty, then there is no need to
+ * include the "Flags" AD field".
+ */
+ if (flags) {
+ ptr[0] = 0x02;
+ ptr[1] = EIR_FLAGS;
+ ptr[2] = flags;
+
+ ad_len += 3;
+ ptr += 3;
+ }
+ }
+
+skip_flags:
+ if (adv) {
+ memcpy(ptr, adv->adv_data, adv->adv_data_len);
+ ad_len += adv->adv_data_len;
+ ptr += adv->adv_data_len;
+ }
+
+ if (instance_flags & MGMT_ADV_FLAG_TX_POWER) {
+ s8 adv_tx_power;
+
+ if (ext_adv_capable(hdev)) {
+ if (adv)
+ adv_tx_power = adv->tx_power;
+ else
+ adv_tx_power = hdev->adv_tx_power;
+ } else {
+ adv_tx_power = hdev->adv_tx_power;
+ }
+
+ /* Provide Tx Power only if we can provide a valid value for it */
+ if (adv_tx_power != HCI_TX_POWER_INVALID) {
+ ptr[0] = 0x02;
+ ptr[1] = EIR_TX_POWER;
+ ptr[2] = (u8)adv_tx_power;
+
+ ad_len += 3;
+ ptr += 3;
+ }
+ }
+
+ return ad_len;
+}
+
+static u8 create_default_scan_rsp(struct hci_dev *hdev, u8 *ptr)
+{
+ u8 scan_rsp_len = 0;
+
+ if (hdev->appearance)
+ scan_rsp_len = eir_append_appearance(hdev, ptr, scan_rsp_len);
+
+ return eir_append_local_name(hdev, ptr, scan_rsp_len);
+}
+
+u8 eir_create_scan_rsp(struct hci_dev *hdev, u8 instance, u8 *ptr)
+{
+ struct adv_info *adv;
+ u8 scan_rsp_len = 0;
+
+ if (!instance)
+ return create_default_scan_rsp(hdev, ptr);
+
+ adv = hci_find_adv_instance(hdev, instance);
+ if (!adv)
+ return 0;
+
+ if ((adv->flags & MGMT_ADV_FLAG_APPEARANCE) && hdev->appearance)
+ scan_rsp_len = eir_append_appearance(hdev, ptr, scan_rsp_len);
+
+ memcpy(&ptr[scan_rsp_len], adv->scan_rsp_data, adv->scan_rsp_len);
+
+ scan_rsp_len += adv->scan_rsp_len;
+
+ if (adv->flags & MGMT_ADV_FLAG_LOCAL_NAME)
+ scan_rsp_len = eir_append_local_name(hdev, ptr, scan_rsp_len);
+
+ return scan_rsp_len;
+}
diff --git a/net/bluetooth/eir.h b/net/bluetooth/eir.h
new file mode 100644
index 000000000000..724662f8f8b1
--- /dev/null
+++ b/net/bluetooth/eir.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2021 Intel Corporation
+ */
+
+void eir_create(struct hci_dev *hdev, u8 *data);
+
+u8 eir_create_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr);
+u8 eir_create_scan_rsp(struct hci_dev *hdev, u8 instance, u8 *ptr);
+
+u8 eir_append_local_name(struct hci_dev *hdev, u8 *eir, u8 ad_len);
+u8 eir_append_appearance(struct hci_dev *hdev, u8 *ptr, u8 ad_len);
+
+static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type,
+ u8 *data, u8 data_len)
+{
+ eir[eir_len++] = sizeof(type) + data_len;
+ eir[eir_len++] = type;
+ memcpy(&eir[eir_len], data, data_len);
+ eir_len += data_len;
+
+ return eir_len;
+}
+
+static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
+{
+ eir[eir_len++] = sizeof(type) + sizeof(data);
+ eir[eir_len++] = type;
+ put_unaligned_le16(data, &eir[eir_len]);
+ eir_len += sizeof(data);
+
+ return eir_len;
+}
+
+static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
+ size_t *data_len)
+{
+ size_t parsed = 0;
+
+ if (eir_len < 2)
+ return NULL;
+
+ while (parsed < eir_len - 1) {
+ u8 field_len = eir[0];
+
+ if (field_len == 0)
+ break;
+
+ parsed += field_len + 1;
+
+ if (parsed > eir_len)
+ break;
+
+ if (eir[1] != type) {
+ eir += field_len + 1;
+ continue;
+ }
+
+ /* Zero length data */
+ if (field_len == 1)
+ return NULL;
+
+ if (data_len)
+ *data_len = field_len - 1;
+
+ return &eir[2];
+ }
+
+ return NULL;
+}
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 8100a3a1ae13..d63c4d6c8bc2 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3143,6 +3143,60 @@ int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
return 0;
}
+/* This function requires the caller holds hdev->lock */
+u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance)
+{
+ u32 flags;
+ struct adv_info *adv;
+
+ if (instance == 0x00) {
+ /* Instance 0 always manages the "Tx Power" and "Flags"
+ * fields
+ */
+ flags = MGMT_ADV_FLAG_TX_POWER | MGMT_ADV_FLAG_MANAGED_FLAGS;
+
+ /* For instance 0, the HCI_ADVERTISING_CONNECTABLE setting
+ * corresponds to the "connectable" instance flag.
+ */
+ if (hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE))
+ flags |= MGMT_ADV_FLAG_CONNECTABLE;
+
+ if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
+ flags |= MGMT_ADV_FLAG_LIMITED_DISCOV;
+ else if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
+ flags |= MGMT_ADV_FLAG_DISCOV;
+
+ return flags;
+ }
+
+ adv = hci_find_adv_instance(hdev, instance);
+
+ /* Return 0 when we got an invalid instance identifier. */
+ if (!adv)
+ return 0;
+
+ return adv->flags;
+}
+
+bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance)
+{
+ struct adv_info *adv;
+
+ /* Instance 0x00 always set local name */
+ if (instance == 0x00)
+ return true;
+
+ adv = hci_find_adv_instance(hdev, instance);
+ if (!adv)
+ return false;
+
+ if (adv->flags & MGMT_ADV_FLAG_APPEARANCE ||
+ adv->flags & MGMT_ADV_FLAG_LOCAL_NAME)
+ return true;
+
+ return adv->scan_rsp_len ? true : false;
+}
+
/* This function requires the caller holds hdev->lock */
void hci_adv_monitors_clear(struct hci_dev *hdev)
{
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 98ec486743ba..c2c047783a84 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -36,6 +36,7 @@
#include "amp.h"
#include "smp.h"
#include "msft.h"
+#include "eir.h"
#define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
"\x00\x00\x00\x00\x00\x00\x00\x00"
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 1d14adc023e9..5ec809d3d57e 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -30,6 +30,7 @@
#include "smp.h"
#include "hci_request.h"
#include "msft.h"
+#include "eir.h"
#define HCI_REQ_DONE 0
#define HCI_REQ_PEND 1
@@ -521,164 +522,6 @@ void __hci_req_update_name(struct hci_request *req)
hci_req_add(req, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp);
}
-#define PNP_INFO_SVCLASS_ID 0x1200
-
-static u8 *create_uuid16_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
-{
- u8 *ptr = data, *uuids_start = NULL;
- struct bt_uuid *uuid;
-
- if (len < 4)
- return ptr;
-
- list_for_each_entry(uuid, &hdev->uuids, list) {
- u16 uuid16;
-
- if (uuid->size != 16)
- continue;
-
- uuid16 = get_unaligned_le16(&uuid->uuid[12]);
- if (uuid16 < 0x1100)
- continue;
-
- if (uuid16 == PNP_INFO_SVCLASS_ID)
- continue;
-
- if (!uuids_start) {
- uuids_start = ptr;
- uuids_start[0] = 1;
- uuids_start[1] = EIR_UUID16_ALL;
- ptr += 2;
- }
-
- /* Stop if not enough space to put next UUID */
- if ((ptr - data) + sizeof(u16) > len) {
- uuids_start[1] = EIR_UUID16_SOME;
- break;
- }
-
- *ptr++ = (uuid16 & 0x00ff);
- *ptr++ = (uuid16 & 0xff00) >> 8;
- uuids_start[0] += sizeof(uuid16);
- }
-
- return ptr;
-}
-
-static u8 *create_uuid32_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
-{
- u8 *ptr = data, *uuids_start = NULL;
- struct bt_uuid *uuid;
-
- if (len < 6)
- return ptr;
-
- list_for_each_entry(uuid, &hdev->uuids, list) {
- if (uuid->size != 32)
- continue;
-
- if (!uuids_start) {
- uuids_start = ptr;
- uuids_start[0] = 1;
- uuids_start[1] = EIR_UUID32_ALL;
- ptr += 2;
- }
-
- /* Stop if not enough space to put next UUID */
- if ((ptr - data) + sizeof(u32) > len) {
- uuids_start[1] = EIR_UUID32_SOME;
- break;
- }
-
- memcpy(ptr, &uuid->uuid[12], sizeof(u32));
- ptr += sizeof(u32);
- uuids_start[0] += sizeof(u32);
- }
-
- return ptr;
-}
-
-static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
-{
- u8 *ptr = data, *uuids_start = NULL;
- struct bt_uuid *uuid;
-
- if (len < 18)
- return ptr;
-
- list_for_each_entry(uuid, &hdev->uuids, list) {
- if (uuid->size != 128)
- continue;
-
- if (!uuids_start) {
- uuids_start = ptr;
- uuids_start[0] = 1;
- uuids_start[1] = EIR_UUID128_ALL;
- ptr += 2;
- }
-
- /* Stop if not enough space to put next UUID */
- if ((ptr - data) + 16 > len) {
- uuids_start[1] = EIR_UUID128_SOME;
- break;
- }
-
- memcpy(ptr, uuid->uuid, 16);
- ptr += 16;
- uuids_start[0] += 16;
- }
-
- return ptr;
-}
-
-static void create_eir(struct hci_dev *hdev, u8 *data)
-{
- u8 *ptr = data;
- size_t name_len;
-
- name_len = strlen(hdev->dev_name);
-
- if (name_len > 0) {
- /* EIR Data type */
- if (name_len > 48) {
- name_len = 48;
- ptr[1] = EIR_NAME_SHORT;
- } else
- ptr[1] = EIR_NAME_COMPLETE;
-
- /* EIR Data length */
- ptr[0] = name_len + 1;
-
- memcpy(ptr + 2, hdev->dev_name, name_len);
-
- ptr += (name_len + 2);
- }
-
- if (hdev->inq_tx_power != HCI_TX_POWER_INVALID) {
- ptr[0] = 2;
- ptr[1] = EIR_TX_POWER;
- ptr[2] = (u8) hdev->inq_tx_power;
-
- ptr += 3;
- }
-
- if (hdev->devid_source > 0) {
- ptr[0] = 9;
- ptr[1] = EIR_DEVICE_ID;
-
- put_unaligned_le16(hdev->devid_source, ptr + 2);
- put_unaligned_le16(hdev->devid_vendor, ptr + 4);
- put_unaligned_le16(hdev->devid_product, ptr + 6);
- put_unaligned_le16(hdev->devid_version, ptr + 8);
-
- ptr += 10;
- }
-
- ptr = create_uuid16_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
- ptr = create_uuid32_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
- ptr = create_uuid128_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
-}
-
void __hci_req_update_eir(struct hci_request *req)
{
struct hci_dev *hdev = req->hdev;
@@ -698,7 +541,7 @@ void __hci_req_update_eir(struct hci_request *req)
memset(&cp, 0, sizeof(cp));
- create_eir(hdev, cp.data);
+ eir_create(hdev, cp.data);
if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0)
return;
@@ -1134,25 +977,6 @@ void hci_req_add_le_passive_scan(struct hci_request *req)
addr_resolv);
}
-static bool adv_instance_is_scannable(struct hci_dev *hdev, u8 instance)
-{
- struct adv_info *adv_instance;
-
- /* Instance 0x00 always set local name */
- if (instance == 0x00)
- return true;
-
- adv_instance = hci_find_adv_instance(hdev, instance);
- if (!adv_instance)
- return false;
-
- if (adv_instance->flags & MGMT_ADV_FLAG_APPEARANCE ||
- adv_instance->flags & MGMT_ADV_FLAG_LOCAL_NAME)
- return true;
-
- return adv_instance->scan_rsp_len ? true : false;
-}
-
static void hci_req_clear_event_filter(struct hci_request *req)
{
struct hci_cp_set_event_filter f;
@@ -1442,7 +1266,7 @@ void hci_req_prepare_suspend(struct hci_dev *hdev, enum suspended_state next)
static bool adv_cur_instance_is_scannable(struct hci_dev *hdev)
{
- return adv_instance_is_scannable(hdev, hdev->cur_adv_instance);
+ return hci_adv_instance_is_scannable(hdev, hdev->cur_adv_instance);
}
void __hci_req_disable_advertising(struct hci_request *req)
@@ -1457,40 +1281,6 @@ void __hci_req_disable_advertising(struct hci_request *req)
}
}
-static u32 get_adv_instance_flags(struct hci_dev *hdev, u8 instance)
-{
- u32 flags;
- struct adv_info *adv_instance;
-
- if (instance == 0x00) {
- /* Instance 0 always manages the "Tx Power" and "Flags"
- * fields
- */
- flags = MGMT_ADV_FLAG_TX_POWER | MGMT_ADV_FLAG_MANAGED_FLAGS;
-
- /* For instance 0, the HCI_ADVERTISING_CONNECTABLE setting
- * corresponds to the "connectable" instance flag.
- */
- if (hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE))
- flags |= MGMT_ADV_FLAG_CONNECTABLE;
-
- if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
- flags |= MGMT_ADV_FLAG_LIMITED_DISCOV;
- else if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
- flags |= MGMT_ADV_FLAG_DISCOV;
-
- return flags;
- }
-
- adv_instance = hci_find_adv_instance(hdev, instance);
-
- /* Return 0 when we got an invalid instance identifier. */
- if (!adv_instance)
- return 0;
-
- return adv_instance->flags;
-}
-
static bool adv_use_rpa(struct hci_dev *hdev, uint32_t flags)
{
/* If privacy is not enabled don't use RPA */
@@ -1555,15 +1345,15 @@ static bool is_advertising_allowed(struct hci_dev *hdev, bool connectable)
void __hci_req_enable_advertising(struct hci_request *req)
{
struct hci_dev *hdev = req->hdev;
- struct adv_info *adv_instance;
+ struct adv_info *adv;
struct hci_cp_le_set_adv_param cp;
u8 own_addr_type, enable = 0x01;
bool connectable;
u16 adv_min_interval, adv_max_interval;
u32 flags;
- flags = get_adv_instance_flags(hdev, hdev->cur_adv_instance);
- adv_instance = hci_find_adv_instance(hdev, hdev->cur_adv_instance);
+ flags = hci_adv_instance_flags(hdev, hdev->cur_adv_instance);
+ adv = hci_find_adv_instance(hdev, hdev->cur_adv_instance);
/* If the "connectable" instance flag was not set, then choose between
* ADV_IND and ADV_NONCONN_IND based on the global connectable setting.
@@ -1595,9 +1385,9 @@ void __hci_req_enable_advertising(struct hci_request *req)
memset(&cp, 0, sizeof(cp));
- if (adv_instance) {
- adv_min_interval = adv_instance->min_interval;
- adv_max_interval = adv_instance->max_interval;
+ if (adv) {
+ adv_min_interval = adv->min_interval;
+ adv_max_interval = adv->max_interval;
} else {
adv_min_interval = hdev->le_adv_min_interval;
adv_max_interval = hdev->le_adv_max_interval;
@@ -1628,85 +1418,6 @@ void __hci_req_enable_advertising(struct hci_request *req)
hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
}
-u8 append_local_name(struct hci_dev *hdev, u8 *ptr, u8 ad_len)
-{
- size_t short_len;
- size_t complete_len;
-
- /* no space left for name (+ NULL + type + len) */
- if ((HCI_MAX_AD_LENGTH - ad_len) < HCI_MAX_SHORT_NAME_LENGTH + 3)
- return ad_len;
-
- /* use complete name if present and fits */
- complete_len = strlen(hdev->dev_name);
- if (complete_len && complete_len <= HCI_MAX_SHORT_NAME_LENGTH)
- return eir_append_data(ptr, ad_len, EIR_NAME_COMPLETE,
- hdev->dev_name, complete_len + 1);
-
- /* use short name if present */
- short_len = strlen(hdev->short_name);
- if (short_len)
- return eir_append_data(ptr, ad_len, EIR_NAME_SHORT,
- hdev->short_name, short_len + 1);
-
- /* use shortened full name if present, we already know that name
- * is longer then HCI_MAX_SHORT_NAME_LENGTH
- */
- if (complete_len) {
- u8 name[HCI_MAX_SHORT_NAME_LENGTH + 1];
-
- memcpy(name, hdev->dev_name, HCI_MAX_SHORT_NAME_LENGTH);
- name[HCI_MAX_SHORT_NAME_LENGTH] = '\0';
-
- return eir_append_data(ptr, ad_len, EIR_NAME_SHORT, name,
- sizeof(name));
- }
-
- return ad_len;
-}
-
-static u8 append_appearance(struct hci_dev *hdev, u8 *ptr, u8 ad_len)
-{
- return eir_append_le16(ptr, ad_len, EIR_APPEARANCE, hdev->appearance);
-}
-
-static u8 create_default_scan_rsp_data(struct hci_dev *hdev, u8 *ptr)
-{
- u8 scan_rsp_len = 0;
-
- if (hdev->appearance)
- scan_rsp_len = append_appearance(hdev, ptr, scan_rsp_len);
-
- return append_local_name(hdev, ptr, scan_rsp_len);
-}
-
-static u8 create_instance_scan_rsp_data(struct hci_dev *hdev, u8 instance,
- u8 *ptr)
-{
- struct adv_info *adv_instance;
- u32 instance_flags;
- u8 scan_rsp_len = 0;
-
- adv_instance = hci_find_adv_instance(hdev, instance);
- if (!adv_instance)
- return 0;
-
- instance_flags = adv_instance->flags;
-
- if ((instance_flags & MGMT_ADV_FLAG_APPEARANCE) && hdev->appearance)
- scan_rsp_len = append_appearance(hdev, ptr, scan_rsp_len);
-
- memcpy(&ptr[scan_rsp_len], adv_instance->scan_rsp_data,
- adv_instance->scan_rsp_len);
-
- scan_rsp_len += adv_instance->scan_rsp_len;
-
- if (instance_flags & MGMT_ADV_FLAG_LOCAL_NAME)
- scan_rsp_len = append_local_name(hdev, ptr, scan_rsp_len);
-
- return scan_rsp_len;
-}
-
void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance)
{
struct hci_dev *hdev = req->hdev;
@@ -1723,11 +1434,7 @@ void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance)
memset(&pdu, 0, sizeof(pdu));
- if (instance)
- len = create_instance_scan_rsp_data(hdev, instance,
- pdu.data);
- else
- len = create_default_scan_rsp_data(hdev, pdu.data);
+ len = eir_create_scan_rsp(hdev, instance, pdu.data);
if (hdev->scan_rsp_data_len == len &&
!memcmp(pdu.data, hdev->scan_rsp_data, len))
@@ -1748,11 +1455,7 @@ void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance)
memset(&cp, 0, sizeof(cp));
- if (instance)
- len = create_instance_scan_rsp_data(hdev, instance,
- cp.data);
- else
- len = create_default_scan_rsp_data(hdev, cp.data);
+ len = eir_create_scan_rsp(hdev, instance, cp.data);
if (hdev->scan_rsp_data_len == len &&
!memcmp(cp.data, hdev->scan_rsp_data, len))
@@ -1767,95 +1470,6 @@ void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance)
}
}
-static u8 create_instance_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr)
-{
- struct adv_info *adv_instance = NULL;
- u8 ad_len = 0, flags = 0;
- u32 instance_flags;
-
- /* Return 0 when the current instance identifier is invalid. */
- if (instance) {
- adv_instance = hci_find_adv_instance(hdev, instance);
- if (!adv_instance)
- return 0;
- }
-
- instance_flags = get_adv_instance_flags(hdev, instance);
-
- /* If instance already has the flags set skip adding it once
- * again.
- */
- if (adv_instance && eir_get_data(adv_instance->adv_data,
- adv_instance->adv_data_len, EIR_FLAGS,
- NULL))
- goto skip_flags;
-
- /* The Add Advertising command allows userspace to set both the general
- * and limited discoverable flags.
- */
- if (instance_flags & MGMT_ADV_FLAG_DISCOV)
- flags |= LE_AD_GENERAL;
-
- if (instance_flags & MGMT_ADV_FLAG_LIMITED_DISCOV)
- flags |= LE_AD_LIMITED;
-
- if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
- flags |= LE_AD_NO_BREDR;
-
- if (flags || (instance_flags & MGMT_ADV_FLAG_MANAGED_FLAGS)) {
- /* If a discovery flag wasn't provided, simply use the global
- * settings.
- */
- if (!flags)
- flags |= mgmt_get_adv_discov_flags(hdev);
-
- /* If flags would still be empty, then there is no need to
- * include the "Flags" AD field".
- */
- if (flags) {
- ptr[0] = 0x02;
- ptr[1] = EIR_FLAGS;
- ptr[2] = flags;
-
- ad_len += 3;
- ptr += 3;
- }
- }
-
-skip_flags:
- if (adv_instance) {
- memcpy(ptr, adv_instance->adv_data,
- adv_instance->adv_data_len);
- ad_len += adv_instance->adv_data_len;
- ptr += adv_instance->adv_data_len;
- }
-
- if (instance_flags & MGMT_ADV_FLAG_TX_POWER) {
- s8 adv_tx_power;
-
- if (ext_adv_capable(hdev)) {
- if (adv_instance)
- adv_tx_power = adv_instance->tx_power;
- else
- adv_tx_power = hdev->adv_tx_power;
- } else {
- adv_tx_power = hdev->adv_tx_power;
- }
-
- /* Provide Tx Power only if we can provide a valid value for it */
- if (adv_tx_power != HCI_TX_POWER_INVALID) {
- ptr[0] = 0x02;
- ptr[1] = EIR_TX_POWER;
- ptr[2] = (u8)adv_tx_power;
-
- ad_len += 3;
- ptr += 3;
- }
- }
-
- return ad_len;
-}
-
void __hci_req_update_adv_data(struct hci_request *req, u8 instance)
{
struct hci_dev *hdev = req->hdev;
@@ -1872,7 +1486,7 @@ void __hci_req_update_adv_data(struct hci_request *req, u8 instance)
memset(&pdu, 0, sizeof(pdu));
- len = create_instance_adv_data(hdev, instance, pdu.data);
+ len = eir_create_adv_data(hdev, instance, pdu.data);
/* There's nothing to do if the data hasn't changed */
if (hdev->adv_data_len == len &&
@@ -1894,7 +1508,7 @@ void __hci_req_update_adv_data(struct hci_request *req, u8 instance)
memset(&cp, 0, sizeof(cp));
- len = create_instance_adv_data(hdev, instance, cp.data);
+ len = eir_create_adv_data(hdev, instance, cp.data);
/* There's nothing to do if the data hasn't changed */
if (hdev->adv_data_len == len &&
@@ -2173,7 +1787,7 @@ int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance)
adv_instance = NULL;
}
- flags = get_adv_instance_flags(hdev, instance);
+ flags = hci_adv_instance_flags(hdev, instance);
/* If the "connectable" instance flag was not set, then choose between
* ADV_IND and ADV_NONCONN_IND based on the global connectable setting.
@@ -2213,7 +1827,7 @@ int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance)
cp.evt_properties = cpu_to_le16(LE_EXT_ADV_CONN_IND);
else
cp.evt_properties = cpu_to_le16(LE_LEGACY_ADV_IND);
- } else if (adv_instance_is_scannable(hdev, instance) ||
+ } else if (hci_adv_instance_is_scannable(hdev, instance) ||
(flags & MGMT_ADV_PARAM_SCAN_RSP)) {
if (secondary_adv)
cp.evt_properties = cpu_to_le16(LE_EXT_ADV_SCAN_IND);
diff --git a/net/bluetooth/hci_request.h b/net/bluetooth/hci_request.h
index 39ee8a18087a..4824be833169 100644
--- a/net/bluetooth/hci_request.h
+++ b/net/bluetooth/hci_request.h
@@ -122,26 +122,3 @@ static inline void hci_update_background_scan(struct hci_dev *hdev)
void hci_request_setup(struct hci_dev *hdev);
void hci_request_cancel_all(struct hci_dev *hdev);
-
-u8 append_local_name(struct hci_dev *hdev, u8 *ptr, u8 ad_len);
-
-static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type,
- u8 *data, u8 data_len)
-{
- eir[eir_len++] = sizeof(type) + data_len;
- eir[eir_len++] = type;
- memcpy(&eir[eir_len], data, data_len);
- eir_len += data_len;
-
- return eir_len;
-}
-
-static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
-{
- eir[eir_len++] = sizeof(type) + sizeof(data);
- eir[eir_len++] = type;
- put_unaligned_le16(data, &eir[eir_len]);
- eir_len += sizeof(data);
-
- return eir_len;
-}
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index d1bf5a55ff85..d44832c90860 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -38,6 +38,7 @@
#include "mgmt_util.h"
#include "mgmt_config.h"
#include "msft.h"
+#include "eir.h"
#define MGMT_VERSION 1
#define MGMT_REVISION 20
@@ -7526,7 +7527,7 @@ static u8 calculate_name_len(struct hci_dev *hdev)
{
u8 buf[HCI_MAX_SHORT_NAME_LENGTH + 3];
- return append_local_name(hdev, buf, 0);
+ return eir_append_local_name(hdev, buf, 0);
}
static u8 tlv_data_max_len(struct hci_dev *hdev, u32 adv_flags,
--
2.31.1
From: Luiz Augusto von Dentz <[email protected]>
This make use of hci_cmd_sync_queue for the following MGMT commands:
Set Device Class
Set Device ID
Add UUID
Remove UUID
tools/mgmt-tester -s "Set Device Class"
Test Summary
------------
Set Device Class - Success 1 Passed 0.024 seconds
Set Device Class - Success 2 Passed 0.019 seconds
Set Device Class - Invalid parameters 1 Passed 0.014 seconds
Total: 3, Passed: 3 (100.0%), Failed: 0, Not Run: 0
Overall execution time: 0.0599 seconds
tools/mgmt-tester -s "Set Device ID"
Test Summary
------------
Set Device ID - Success 1 Passed 0.019 seconds
Set Device ID - Success 2 Passed 0.016 seconds
Set Device ID - Disable Passed 0.014 seconds
Set Device ID - Power off and Power on Passed 0.019 seconds
Set Device ID - SSP off and Power on Passed 0.017 seconds
Set Device ID - Invalid Parameter Passed 0.015 seconds
Total: 6, Passed: 6 (100.0%), Failed: 0, Not Run: 0
Overall execution time: 0.107 seconds
tools/mgmt-tester -s "Add UUID"
Test Summary
------------
Add UUID - UUID-16 1 Passed 0.023 seconds
Add UUID - UUID-16 multiple 1 Passed 0.018 seconds
Add UUID - UUID-16 partial 1 Passed 0.024 seconds
Add UUID - UUID-32 1 Passed 0.015 seconds
Add UUID - UUID-32 multiple 1 Passed 0.017 seconds
Add UUID - UUID-32 partial 1 Passed 0.020 seconds
Add UUID - UUID-128 1 Passed 0.016 seconds
Add UUID - UUID-128 multiple 1 Passed 0.017 seconds
Add UUID - UUID-128 partial 1 Passed 0.018 seconds
Add UUID - UUID mix Passed 0.017 seconds
Total: 10, Passed: 10 (100.0%), Failed: 0, Not Run: 0
Overall execution time: 0.198 seconds
tools/mgmt-tester -s "Remove UUID"
Test Summary
------------
Remove UUID - Success 1 Passed 0.022 seconds
Remove UUID - All UUID - Success 2 Passed 0.017 seconds
Remove UUID - Power Off - Success 3 Passed 0.015 seconds
Remove UUID - Power Off and On - Success 4 Passed 0.017 seconds
Remove UUID - Not Exist - Invalid Params 1 Passed 0.015 seconds
Total: 5, Passed: 5 (100.0%), Failed: 0, Not Run: 0
Overall execution time: 0.0908 seconds
Signed-off-by: Luiz Augusto von Dentz <[email protected]>
---
include/net/bluetooth/hci_core.h | 2 +
net/bluetooth/Makefile | 2 +-
net/bluetooth/hci_request.c | 72 +-----------
net/bluetooth/hci_request.h | 6 +
net/bluetooth/hci_sync.c | 171 +++++++++++++++++++++++++++
net/bluetooth/hci_sync.h | 9 ++
net/bluetooth/mgmt.c | 193 +++++++++++++++----------------
net/bluetooth/mgmt_util.c | 15 ++-
net/bluetooth/mgmt_util.h | 3 +
9 files changed, 302 insertions(+), 171 deletions(-)
create mode 100644 net/bluetooth/hci_sync.c
create mode 100644 net/bluetooth/hci_sync.h
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index f672b8390463..9fb90facf3c0 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1667,6 +1667,8 @@ struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u32 timeout);
struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u8 event, u32 timeout);
+int __hci_cmd_sync_status(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u32 timeout);
int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param);
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index 0276e7d5d7ad..de4e79060851 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -14,7 +14,7 @@ bluetooth_6lowpan-y := 6lowpan.o
bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \
hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o lib.o \
- ecdh_helper.o eir.o hci_request.o mgmt_util.o mgmt_config.o
+ ecdh_helper.o eir.o hci_request.o hci_sync.o mgmt_util.o mgmt_config.o
bluetooth-$(CONFIG_BT_BREDR) += sco.o
bluetooth-$(CONFIG_BT_HS) += a2mp.o amp.o
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 5ec809d3d57e..7edd9ab1b611 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -32,10 +32,6 @@
#include "msft.h"
#include "eir.h"
-#define HCI_REQ_DONE 0
-#define HCI_REQ_PEND 1
-#define HCI_REQ_CANCELED 2
-
void hci_req_init(struct hci_request *req, struct hci_dev *hdev)
{
skb_queue_head_init(&req->cmd_q);
@@ -101,8 +97,8 @@ int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete)
return req_run(req, NULL, complete);
}
-static void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode,
- struct sk_buff *skb)
+void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode,
+ struct sk_buff *skb)
{
bt_dev_dbg(hdev, "result 0x%2.2x", result);
@@ -126,70 +122,6 @@ void hci_req_sync_cancel(struct hci_dev *hdev, int err)
}
}
-struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
- const void *param, u8 event, u32 timeout)
-{
- struct hci_request req;
- struct sk_buff *skb;
- int err = 0;
-
- bt_dev_dbg(hdev, "");
-
- hci_req_init(&req, hdev);
-
- hci_req_add_ev(&req, opcode, plen, param, event);
-
- hdev->req_status = HCI_REQ_PEND;
-
- err = hci_req_run_skb(&req, hci_req_sync_complete);
- if (err < 0)
- return ERR_PTR(err);
-
- err = wait_event_interruptible_timeout(hdev->req_wait_q,
- hdev->req_status != HCI_REQ_PEND, timeout);
-
- if (err == -ERESTARTSYS)
- return ERR_PTR(-EINTR);
-
- switch (hdev->req_status) {
- case HCI_REQ_DONE:
- err = -bt_to_errno(hdev->req_result);
- break;
-
- case HCI_REQ_CANCELED:
- err = -hdev->req_result;
- break;
-
- default:
- err = -ETIMEDOUT;
- break;
- }
-
- hdev->req_status = hdev->req_result = 0;
- skb = hdev->req_skb;
- hdev->req_skb = NULL;
-
- bt_dev_dbg(hdev, "end: err %d", err);
-
- if (err < 0) {
- kfree_skb(skb);
- return ERR_PTR(err);
- }
-
- if (!skb)
- return ERR_PTR(-ENODATA);
-
- return skb;
-}
-EXPORT_SYMBOL(__hci_cmd_sync_ev);
-
-struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
- const void *param, u32 timeout)
-{
- return __hci_cmd_sync_ev(hdev, opcode, plen, param, 0, timeout);
-}
-EXPORT_SYMBOL(__hci_cmd_sync);
-
/* Execute request and wait for completion. */
int __hci_req_sync(struct hci_dev *hdev, int (*func)(struct hci_request *req,
unsigned long opt),
diff --git a/net/bluetooth/hci_request.h b/net/bluetooth/hci_request.h
index 4824be833169..3234ed99c133 100644
--- a/net/bluetooth/hci_request.h
+++ b/net/bluetooth/hci_request.h
@@ -22,6 +22,10 @@
#include <asm/unaligned.h>
+#define HCI_REQ_DONE 0
+#define HCI_REQ_PEND 1
+#define HCI_REQ_CANCELED 2
+
#define hci_req_sync_lock(hdev) mutex_lock(&hdev->req_lock)
#define hci_req_sync_unlock(hdev) mutex_unlock(&hdev->req_lock)
@@ -40,6 +44,8 @@ void hci_req_purge(struct hci_request *req);
bool hci_req_status_pend(struct hci_dev *hdev);
int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete);
+void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode,
+ struct sk_buff *skb);
void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
const void *param);
void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
new file mode 100644
index 000000000000..e2ddfdf7c515
--- /dev/null
+++ b/net/bluetooth/hci_sync.c
@@ -0,0 +1,171 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2021 Intel Corporation
+ */
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "hci_request.h"
+#include "hci_sync.h"
+#include "eir.h"
+
+struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u8 event, u32 timeout)
+{
+ struct hci_request req;
+ struct sk_buff *skb;
+ int err = 0;
+
+ bt_dev_dbg(hdev, "");
+
+ hci_req_init(&req, hdev);
+
+ hci_req_add_ev(&req, opcode, plen, param, event);
+
+ hdev->req_status = HCI_REQ_PEND;
+
+ err = hci_req_run_skb(&req, hci_req_sync_complete);
+ if (err < 0)
+ return ERR_PTR(err);
+
+ err = wait_event_interruptible_timeout(hdev->req_wait_q,
+ hdev->req_status != HCI_REQ_PEND,
+ timeout);
+
+ if (err == -ERESTARTSYS)
+ return ERR_PTR(-EINTR);
+
+ switch (hdev->req_status) {
+ case HCI_REQ_DONE:
+ err = -bt_to_errno(hdev->req_result);
+ break;
+
+ case HCI_REQ_CANCELED:
+ err = -hdev->req_result;
+ break;
+
+ default:
+ err = -ETIMEDOUT;
+ break;
+ }
+
+ hdev->req_status = 0;
+ hdev->req_result = 0;
+ skb = hdev->req_skb;
+ hdev->req_skb = NULL;
+
+ bt_dev_dbg(hdev, "end: err %d", err);
+
+ if (err < 0) {
+ kfree_skb(skb);
+ return ERR_PTR(err);
+ }
+
+ if (!skb)
+ return ERR_PTR(-ENODATA);
+
+ return skb;
+}
+EXPORT_SYMBOL(__hci_cmd_sync_ev);
+
+struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u32 timeout)
+{
+ return __hci_cmd_sync_ev(hdev, opcode, plen, param, 0, timeout);
+}
+EXPORT_SYMBOL(__hci_cmd_sync);
+
+int __hci_cmd_sync_status(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u32 timeout)
+{
+ struct sk_buff *skb;
+ u8 status;
+
+ skb = __hci_cmd_sync(hdev, opcode, plen, param, timeout);
+ if (IS_ERR_OR_NULL(skb)) {
+ bt_dev_err(hdev, "Opcode 0x%4x failed: %ld", opcode,
+ PTR_ERR(skb));
+ return PTR_ERR(skb);
+ }
+
+ status = skb->data[0];
+
+ kfree_skb(skb);
+
+ return status;
+}
+EXPORT_SYMBOL(__hci_cmd_sync_status);
+
+int hci_update_eir_sync(struct hci_dev *hdev)
+{
+ struct hci_cp_write_eir cp;
+
+ bt_dev_dbg(hdev, "");
+
+ if (!hdev_is_powered(hdev))
+ return 0;
+
+ if (!lmp_ext_inq_capable(hdev))
+ return 0;
+
+ if (!hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
+ return 0;
+
+ if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE))
+ return 0;
+
+ memset(&cp, 0, sizeof(cp));
+
+ eir_create(hdev, cp.data);
+
+ if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0)
+ return 0;
+
+ memcpy(hdev->eir, cp.data, sizeof(cp.data));
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp,
+ HCI_CMD_TIMEOUT);
+}
+
+static u8 get_service_classes(struct hci_dev *hdev)
+{
+ struct bt_uuid *uuid;
+ u8 val = 0;
+
+ list_for_each_entry(uuid, &hdev->uuids, list)
+ val |= uuid->svc_hint;
+
+ return val;
+}
+
+int hci_update_class_sync(struct hci_dev *hdev)
+{
+ u8 cod[3];
+
+ bt_dev_dbg(hdev, "");
+
+ if (!hdev_is_powered(hdev))
+ return 0;
+
+ if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
+ return 0;
+
+ if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE))
+ return 0;
+
+ cod[0] = hdev->minor_class;
+ cod[1] = hdev->major_class;
+ cod[2] = get_service_classes(hdev);
+
+ if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
+ cod[1] |= 0x20;
+
+ if (memcmp(cod, hdev->dev_class, 3) == 0)
+ return 0;
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_WRITE_CLASS_OF_DEV,
+ sizeof(cod), cod, HCI_CMD_TIMEOUT);
+}
diff --git a/net/bluetooth/hci_sync.h b/net/bluetooth/hci_sync.h
new file mode 100644
index 000000000000..e3437150031c
--- /dev/null
+++ b/net/bluetooth/hci_sync.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2021 Intel Corporation
+ */
+
+int hci_update_eir_sync(struct hci_dev *hdev);
+int hci_update_class_sync(struct hci_dev *hdev);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index d44832c90860..d3e3cd073ed3 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -34,6 +34,7 @@
#include <net/bluetooth/mgmt.h>
#include "hci_request.h"
+#include "hci_sync.h"
#include "smp.h"
#include "mgmt_util.h"
#include "mgmt_config.h"
@@ -276,10 +277,39 @@ static const u8 mgmt_status_table[] = {
MGMT_STATUS_CONNECT_FAILED, /* MAC Connection Failed */
};
-static u8 mgmt_status(u8 hci_status)
+static u8 mgmt_errno_status(int err)
{
- if (hci_status < ARRAY_SIZE(mgmt_status_table))
- return mgmt_status_table[hci_status];
+ switch (err) {
+ case 0:
+ return MGMT_STATUS_SUCCESS;
+ case -EPERM:
+ return MGMT_STATUS_REJECTED;
+ case -EINVAL:
+ return MGMT_STATUS_INVALID_PARAMS;
+ case -EOPNOTSUPP:
+ return MGMT_STATUS_NOT_SUPPORTED;
+ case -EBUSY:
+ return MGMT_STATUS_BUSY;
+ case -ETIMEDOUT:
+ return MGMT_STATUS_AUTH_FAILED;
+ case -ENOMEM:
+ return MGMT_STATUS_NO_RESOURCES;
+ case -EISCONN:
+ return MGMT_STATUS_ALREADY_CONNECTED;
+ case -ENOTCONN:
+ return MGMT_STATUS_DISCONNECTED;
+ }
+
+ return MGMT_STATUS_FAILED;
+}
+
+static u8 mgmt_status(int err)
+{
+ if (err < 0)
+ return mgmt_errno_status(err);
+
+ if (err < ARRAY_SIZE(mgmt_status_table))
+ return mgmt_status_table[err];
return MGMT_STATUS_FAILED;
}
@@ -951,25 +981,23 @@ bool mgmt_get_connectable(struct hci_dev *hdev)
return hci_dev_test_flag(hdev, HCI_CONNECTABLE);
}
+static int service_cache_sync(struct hci_dev *hdev, void *data)
+{
+ hci_update_eir_sync(hdev);
+ hci_update_class_sync(hdev);
+
+ return 0;
+}
+
static void service_cache_off(struct work_struct *work)
{
struct hci_dev *hdev = container_of(work, struct hci_dev,
service_cache.work);
- struct hci_request req;
if (!hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE))
return;
- hci_req_init(&req, hdev);
-
- hci_dev_lock(hdev);
-
- __hci_req_update_eir(&req);
- __hci_req_update_class(&req);
-
- hci_dev_unlock(hdev);
-
- hci_req_run(&req, NULL);
+ hci_cmd_sync_queue(hdev, service_cache_sync, NULL, NULL);
}
static void rpa_expired(struct work_struct *work)
@@ -2075,37 +2103,33 @@ static u8 get_uuid_size(const u8 *uuid)
return 16;
}
-static void mgmt_class_complete(struct hci_dev *hdev, u16 mgmt_op, u8 status)
+static void mgmt_class_complete(struct hci_dev *hdev, void *data, int err)
{
- struct mgmt_pending_cmd *cmd;
-
- hci_dev_lock(hdev);
+ struct mgmt_pending_cmd *cmd = data;
- cmd = pending_find(mgmt_op, hdev);
- if (!cmd)
- goto unlock;
+ bt_dev_dbg(hdev, "err %d", err);
mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
- mgmt_status(status), hdev->dev_class, 3);
+ mgmt_status(err), hdev->dev_class, 3);
- mgmt_pending_remove(cmd);
-
-unlock:
- hci_dev_unlock(hdev);
+ mgmt_pending_free(cmd);
}
-static void add_uuid_complete(struct hci_dev *hdev, u8 status, u16 opcode)
+static int add_uuid_sync(struct hci_dev *hdev, void *data)
{
- bt_dev_dbg(hdev, "status 0x%02x", status);
+ int err;
- mgmt_class_complete(hdev, MGMT_OP_ADD_UUID, status);
+ err = hci_update_class_sync(hdev);
+ if (err)
+ return err;
+
+ return hci_update_eir_sync(hdev);
}
static int add_uuid(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
{
struct mgmt_cp_add_uuid *cp = data;
struct mgmt_pending_cmd *cmd;
- struct hci_request req;
struct bt_uuid *uuid;
int err;
@@ -2131,28 +2155,17 @@ static int add_uuid(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
list_add_tail(&uuid->list, &hdev->uuids);
- hci_req_init(&req, hdev);
-
- __hci_req_update_class(&req);
- __hci_req_update_eir(&req);
-
- err = hci_req_run(&req, add_uuid_complete);
- if (err < 0) {
- if (err != -ENODATA)
- goto failed;
-
- err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_UUID, 0,
- hdev->dev_class, 3);
- goto failed;
- }
-
- cmd = mgmt_pending_add(sk, MGMT_OP_ADD_UUID, hdev, data, len);
+ cmd = mgmt_pending_new(sk, MGMT_OP_ADD_UUID, hdev, data, len);
if (!cmd) {
err = -ENOMEM;
goto failed;
}
- err = 0;
+ err = hci_cmd_sync_queue(hdev, add_uuid_sync, cmd, mgmt_class_complete);
+ if (err < 0) {
+ mgmt_pending_free(cmd);
+ goto failed;
+ }
failed:
hci_dev_unlock(hdev);
@@ -2173,11 +2186,15 @@ static bool enable_service_cache(struct hci_dev *hdev)
return false;
}
-static void remove_uuid_complete(struct hci_dev *hdev, u8 status, u16 opcode)
+static int remove_uuid_sync(struct hci_dev *hdev, void *data)
{
- bt_dev_dbg(hdev, "status 0x%02x", status);
+ int err;
- mgmt_class_complete(hdev, MGMT_OP_REMOVE_UUID, status);
+ err = hci_update_class_sync(hdev);
+ if (err)
+ return err;
+
+ return hci_update_eir_sync(hdev);
}
static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
@@ -2187,7 +2204,6 @@ static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
struct mgmt_pending_cmd *cmd;
struct bt_uuid *match, *tmp;
u8 bt_uuid_any[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
- struct hci_request req;
int err, found;
bt_dev_dbg(hdev, "sock %p", sk);
@@ -2231,39 +2247,35 @@ static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
}
update_class:
- hci_req_init(&req, hdev);
-
- __hci_req_update_class(&req);
- __hci_req_update_eir(&req);
-
- err = hci_req_run(&req, remove_uuid_complete);
- if (err < 0) {
- if (err != -ENODATA)
- goto unlock;
-
- err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID, 0,
- hdev->dev_class, 3);
- goto unlock;
- }
-
- cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_UUID, hdev, data, len);
+ cmd = mgmt_pending_new(sk, MGMT_OP_REMOVE_UUID, hdev, data, len);
if (!cmd) {
err = -ENOMEM;
goto unlock;
}
- err = 0;
+ err = hci_cmd_sync_queue(hdev, remove_uuid_sync, cmd,
+ mgmt_class_complete);
+ if (err < 0)
+ mgmt_pending_free(cmd);
unlock:
hci_dev_unlock(hdev);
return err;
}
-static void set_class_complete(struct hci_dev *hdev, u8 status, u16 opcode)
+static int set_class_sync(struct hci_dev *hdev, void *data)
{
- bt_dev_dbg(hdev, "status 0x%02x", status);
+ int err = 0;
+
+ if (hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE)) {
+ cancel_delayed_work_sync(&hdev->service_cache);
+ err = hci_update_eir_sync(hdev);
+ }
+
+ if (err)
+ return err;
- mgmt_class_complete(hdev, MGMT_OP_SET_DEV_CLASS, status);
+ return hci_update_class_sync(hdev);
}
static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
@@ -2271,7 +2283,6 @@ static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
{
struct mgmt_cp_set_dev_class *cp = data;
struct mgmt_pending_cmd *cmd;
- struct hci_request req;
int err;
bt_dev_dbg(hdev, "sock %p", sk);
@@ -2303,34 +2314,16 @@ static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
goto unlock;
}
- hci_req_init(&req, hdev);
-
- if (hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE)) {
- hci_dev_unlock(hdev);
- cancel_delayed_work_sync(&hdev->service_cache);
- hci_dev_lock(hdev);
- __hci_req_update_eir(&req);
- }
-
- __hci_req_update_class(&req);
-
- err = hci_req_run(&req, set_class_complete);
- if (err < 0) {
- if (err != -ENODATA)
- goto unlock;
-
- err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
- hdev->dev_class, 3);
- goto unlock;
- }
-
- cmd = mgmt_pending_add(sk, MGMT_OP_SET_DEV_CLASS, hdev, data, len);
+ cmd = mgmt_pending_new(sk, MGMT_OP_SET_DEV_CLASS, hdev, data, len);
if (!cmd) {
err = -ENOMEM;
goto unlock;
}
- err = 0;
+ err = hci_cmd_sync_queue(hdev, set_class_sync, cmd,
+ mgmt_class_complete);
+ if (err < 0)
+ mgmt_pending_free(cmd);
unlock:
hci_dev_unlock(hdev);
@@ -5266,11 +5259,15 @@ static int unblock_device(struct sock *sk, struct hci_dev *hdev, void *data,
return err;
}
+static int set_device_id_sync(struct hci_dev *hdev, void *data)
+{
+ return hci_update_eir_sync(hdev);
+}
+
static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data,
u16 len)
{
struct mgmt_cp_set_device_id *cp = data;
- struct hci_request req;
int err;
__u16 source;
@@ -5292,9 +5289,7 @@ static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data,
err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEVICE_ID, 0,
NULL, 0);
- hci_req_init(&req, hdev);
- __hci_req_update_eir(&req);
- hci_req_run(&req, NULL);
+ hci_cmd_sync_queue(hdev, set_device_id_sync, NULL, NULL);
hci_dev_unlock(hdev);
diff --git a/net/bluetooth/mgmt_util.c b/net/bluetooth/mgmt_util.c
index 0d0a6d77b9e8..83875f2a0604 100644
--- a/net/bluetooth/mgmt_util.c
+++ b/net/bluetooth/mgmt_util.c
@@ -227,7 +227,7 @@ void mgmt_pending_foreach(u16 opcode, struct hci_dev *hdev,
}
}
-struct mgmt_pending_cmd *mgmt_pending_add(struct sock *sk, u16 opcode,
+struct mgmt_pending_cmd *mgmt_pending_new(struct sock *sk, u16 opcode,
struct hci_dev *hdev,
void *data, u16 len)
{
@@ -251,6 +251,19 @@ struct mgmt_pending_cmd *mgmt_pending_add(struct sock *sk, u16 opcode,
cmd->sk = sk;
sock_hold(sk);
+ return cmd;
+}
+
+struct mgmt_pending_cmd *mgmt_pending_add(struct sock *sk, u16 opcode,
+ struct hci_dev *hdev,
+ void *data, u16 len)
+{
+ struct mgmt_pending_cmd *cmd;
+
+ cmd = mgmt_pending_new(sk, opcode, hdev, data, len);
+ if (!cmd)
+ return NULL;
+
list_add(&cmd->list, &hdev->mgmt_pending);
return cmd;
diff --git a/net/bluetooth/mgmt_util.h b/net/bluetooth/mgmt_util.h
index 6559f189213c..9dc24ba0d51a 100644
--- a/net/bluetooth/mgmt_util.h
+++ b/net/bluetooth/mgmt_util.h
@@ -49,5 +49,8 @@ void mgmt_pending_foreach(u16 opcode, struct hci_dev *hdev,
struct mgmt_pending_cmd *mgmt_pending_add(struct sock *sk, u16 opcode,
struct hci_dev *hdev,
void *data, u16 len);
+struct mgmt_pending_cmd *mgmt_pending_new(struct sock *sk, u16 opcode,
+ struct hci_dev *hdev,
+ void *data, u16 len);
void mgmt_pending_free(struct mgmt_pending_cmd *cmd);
void mgmt_pending_remove(struct mgmt_pending_cmd *cmd);
--
2.31.1
From: Luiz Augusto von Dentz <[email protected]>
This enables advertising when LL privacy is enabled and changes the
command sequence when resolving list is updated to also account for when
advertising is enabled using the following sequence:
Disable Scanning -> (Disable Advertising) -> Disable Resolving List ->
Update Resolving List -> Enable Resolving List -> Enable Scanning ->
(Enable Advertising)
Signed-off-by: Luiz Augusto von Dentz <[email protected]>
---
include/net/bluetooth/hci_core.h | 5 +-
net/bluetooth/hci_event.c | 11 +---
net/bluetooth/hci_request.c | 26 +++-----
net/bluetooth/hci_sync.c | 106 +++++++++++++++++++------------
net/bluetooth/mgmt.c | 40 ++----------
5 files changed, 85 insertions(+), 103 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 9fb90facf3c0..733ee07841af 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1437,8 +1437,11 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
#define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
+#define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
+
/* Use LL Privacy based address resolution if supported */
-#define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
+#define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
+ hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
/* Use ext scanning if set ext scan param and ext scan enable is supported */
#define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index c2c047783a84..513fa3778673 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2340,8 +2340,7 @@ static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
* address types 0x02 and 0x03 are used. These types need to be
* converted back into either public address or random address type
*/
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION)) {
+ if (hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION)) {
switch (own_address_type) {
case ADDR_LE_DEV_PUBLIC_RESOLVED:
own_address_type = ADDR_LE_DEV_PUBLIC;
@@ -5201,9 +5200,7 @@ static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
* address types 0x02 and 0x03 are used. These types need to be
* converted back into either public address or random address type
*/
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) &&
- hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION)) {
+ if (hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION)) {
switch (conn->dst_type) {
case ADDR_LE_DEV_PUBLIC_RESOLVED:
conn->dst_type = ADDR_LE_DEV_PUBLIC;
@@ -5310,9 +5307,7 @@ static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev,
le16_to_cpu(ev->latency),
le16_to_cpu(ev->supervision_timeout));
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) &&
- hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION))
+ if (hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION))
hci_req_disable_address_resolution(hdev);
}
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 7edd9ab1b611..62fdec90b7db 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -511,9 +511,7 @@ void hci_req_add_le_scan_disable(struct hci_request *req, bool rpa_le_conn)
}
/* Disable address resolution */
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) &&
- hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION) && !rpa_le_conn) {
+ if (hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION) && !rpa_le_conn) {
__u8 enable = 0x00;
hci_req_add(req, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE, 1, &enable);
@@ -532,8 +530,7 @@ static void del_from_accept_list(struct hci_request *req, bdaddr_t *bdaddr,
cp.bdaddr_type);
hci_req_add(req, HCI_OP_LE_DEL_FROM_ACCEPT_LIST, sizeof(cp), &cp);
- if (use_ll_privacy(req->hdev) &&
- hci_dev_test_flag(req->hdev, HCI_ENABLE_LL_PRIVACY)) {
+ if (use_ll_privacy(req->hdev)) {
struct smp_irk *irk;
irk = hci_find_irk_by_addr(req->hdev, bdaddr, bdaddr_type);
@@ -586,8 +583,7 @@ static int add_to_accept_list(struct hci_request *req,
cp.bdaddr_type);
hci_req_add(req, HCI_OP_LE_ADD_TO_ACCEPT_LIST, sizeof(cp), &cp);
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY)) {
+ if (use_ll_privacy(hdev)) {
struct smp_irk *irk;
irk = hci_find_irk_by_addr(hdev, ¶ms->addr,
@@ -626,8 +622,7 @@ static u8 update_accept_list(struct hci_request *req)
*/
bool allow_rpa = hdev->suspended;
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ if (use_ll_privacy(hdev))
allow_rpa = true;
/* Go through the current accept list programmed into the
@@ -716,9 +711,7 @@ static void hci_req_start_scan(struct hci_request *req, u8 type, u16 interval,
return;
}
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY) &&
- addr_resolv) {
+ if (use_ll_privacy(hdev) && addr_resolv) {
u8 enable = 0x01;
hci_req_add(req, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE, 1, &enable);
@@ -1477,8 +1470,7 @@ void hci_req_disable_address_resolution(struct hci_dev *hdev)
struct hci_request req;
__u8 enable = 0x00;
- if (!use_ll_privacy(hdev) &&
- !hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION))
+ if (!hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION))
return;
hci_req_init(&req, hdev);
@@ -1623,8 +1615,7 @@ int hci_get_random_address(struct hci_dev *hdev, bool require_privacy,
/* If Controller supports LL Privacy use own address type is
* 0x03
*/
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ if (use_ll_privacy(hdev))
*own_addr_type = ADDR_LE_DEV_RANDOM_RESOLVED;
else
*own_addr_type = ADDR_LE_DEV_RANDOM;
@@ -2098,8 +2089,7 @@ int hci_update_random_address(struct hci_request *req, bool require_privacy,
/* If Controller supports LL Privacy use own address type is
* 0x03
*/
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ if (use_ll_privacy(hdev))
*own_addr_type = ADDR_LE_DEV_RANDOM_RESOLVED;
else
*own_addr_type = ADDR_LE_DEV_RANDOM;
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 336165e3b1a5..c1c65cba13fc 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -272,8 +272,7 @@ int hci_update_random_address_sync(struct hci_dev *hdev, bool require_privacy,
/* If Controller supports LL Privacy use own address type is
* 0x03
*/
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ if (use_ll_privacy(hdev))
*own_addr_type = ADDR_LE_DEV_RANDOM_RESOLVED;
else
*own_addr_type = ADDR_LE_DEV_RANDOM;
@@ -633,11 +632,9 @@ int hci_enable_advertising_sync(struct hci_dev *hdev)
if (!is_advertising_allowed(hdev, connectable))
return -EINVAL;
- if (hci_dev_test_flag(hdev, HCI_LE_ADV)) {
- status = hci_disable_advertising_sync(hdev);
- if (status)
- return status;
- }
+ status = hci_disable_advertising_sync(hdev);
+ if (status)
+ return status;
/* Clear the HCI_LE_ADV bit temporarily so that the
* hci_update_random_address knows that it's safe to go ahead
@@ -926,6 +923,10 @@ int hci_disable_advertising_sync(struct hci_dev *hdev)
{
u8 enable = 0x00;
+ /* If controller is not advertising we are done. */
+ if (!hci_dev_test_flag(hdev, HCI_LE_ADV))
+ return 0;
+
if (ext_adv_capable(hdev))
return hci_disable_ext_adv_instance_sync(hdev, 0x00);
@@ -964,15 +965,18 @@ static int hci_le_set_scan_enable_sync(struct hci_dev *hdev, u8 val,
static int hci_le_set_addr_resolution_enable_sync(struct hci_dev *hdev, u8 val)
{
- if (!use_ll_privacy(hdev) ||
- !hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ if (!use_ll_privacy(hdev))
+ return 0;
+
+ /* If controller is not/already resolving we are done. */
+ if (val == hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION))
return 0;
return __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
sizeof(val), &val, HCI_CMD_TIMEOUT);
}
-int hci_scan_disable_sync(struct hci_dev *hdev, bool rpa_le_conn)
+int hci_scan_disable_sync(struct hci_dev *hdev)
{
int err;
@@ -994,13 +998,6 @@ int hci_scan_disable_sync(struct hci_dev *hdev, bool rpa_le_conn)
return err;
}
- if (rpa_le_conn) {
- err = hci_le_set_addr_resolution_enable_sync(hdev, 0x00);
- if (err)
- bt_dev_err(hdev, "Unable to disable LL privacy: %d",
- err);
- }
-
return err;
}
@@ -1068,8 +1065,7 @@ static int hci_le_del_resolve_list_sync(struct hci_dev *hdev,
struct hci_cp_le_del_from_resolv_list cp;
struct smp_irk *irk;
- if (!use_ll_privacy(hdev) ||
- !hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ if (!use_ll_privacy(hdev))
return 0;
irk = hci_find_irk_by_addr(hdev, bdaddr, bdaddr_type);
@@ -1111,9 +1107,9 @@ static int hci_le_add_resolve_list_sync(struct hci_dev *hdev,
{
struct hci_cp_le_add_to_resolv_list cp;
struct smp_irk *irk;
+ int err;
- if (!use_ll_privacy(hdev) ||
- !hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ if (!use_ll_privacy(hdev))
return 0;
irk = hci_find_irk_by_addr(hdev, ¶ms->addr, params->addr_type);
@@ -1129,8 +1125,16 @@ static int hci_le_add_resolve_list_sync(struct hci_dev *hdev,
else
memset(cp.local_irk, 0, 16);
- return __hci_cmd_sync_status(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST,
- sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+ err = __hci_cmd_sync_status(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
+ /* When a controller cannot add a device to the list because there is
+ * no space available, it shall return the error code Memory Capacity
+ * Exceeded (0x07).
+ */
+ if (err == HCI_ERROR_MEMORY_EXCEEDED)
+ return 0;
+
+ return err;
}
/* Adds connection to allow list if needed.*/
@@ -1192,8 +1196,7 @@ static u8 hci_update_accept_list_sync(struct hci_dev *hdev)
*/
bool allow_rpa = hdev->suspended;
- if (use_ll_privacy(hdev) &&
- hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
+ if (use_ll_privacy(hdev))
allow_rpa = true;
/* Go through the current accept list programmed into the
@@ -1382,22 +1385,25 @@ static int hci_start_scan_sync(struct hci_dev *hdev, u8 type, u16 interval,
LE_SCAN_FILTER_DUP_ENABLE);
}
-/* Ensure to call hci_scan_disable_sync first to disable the controller based
- * address resolution to be able to reconfigure resolving list.
- */
int hci_passive_scan_sync(struct hci_dev *hdev)
{
u8 own_addr_type;
u8 filter_policy;
u16 window, interval;
- /* Background scanning should run with address resolution */
- bool addr_resolv = true;
+ bool restart_adv = false;
+ int err;
if (hdev->scanning_paused) {
bt_dev_dbg(hdev, "Scanning is paused for suspend");
return 0;
}
+ err = hci_scan_disable_sync(hdev);
+ if (err) {
+ bt_dev_err(hdev, "disable scanning failed: %d", err);
+ return err;
+ }
+
/* Set require_privacy to false since no SCAN_REQ are send
* during passive scanning. Not using an non-resolvable address
* here is important so that peer devices using direct
@@ -1413,6 +1419,25 @@ int hci_passive_scan_sync(struct hci_dev *hdev)
return 0;
bt_dev_dbg(hdev, "interleave state %d", hdev->interleave_scan_state);
+
+ /* Stop advertising if resolving list can be used as controllers are
+ * cannot accept resolving list modifications while advertising.
+ */
+ if (use_ll_privacy(hdev) && hci_dev_test_flag(hdev, HCI_LE_ADV)) {
+ err = hci_disable_advertising_sync(hdev);
+ if (err) {
+ bt_dev_err(hdev, "disable advertising failed: %d", err);
+ return err;
+ }
+ restart_adv = true;
+ }
+
+ err = hci_le_set_addr_resolution_enable_sync(hdev, 0x00);
+ if (err) {
+ bt_dev_err(hdev, "Unable to disable LL privacy: %d", err);
+ return err;
+ }
+
/* Adding or removing entries from the accept list must
* happen before enabling scanning. The controller does
* not allow accept list modification while scanning.
@@ -1450,8 +1475,16 @@ int hci_passive_scan_sync(struct hci_dev *hdev)
bt_dev_dbg(hdev, "LE passive scan with acceptlist = %d", filter_policy);
- return hci_start_scan_sync(hdev, LE_SCAN_PASSIVE, interval, window,
- own_addr_type, filter_policy, addr_resolv);
+ /* Start scanning, it will also program allowlist and resolvinglist so
+ * it needs to be done before restarting advertising.
+ */
+ err = hci_start_scan_sync(hdev, LE_SCAN_PASSIVE, interval, window,
+ own_addr_type, filter_policy, true);
+ if (err || !restart_adv)
+ return err;
+
+ /* Restart advertising if it was stopped */
+ return hci_enable_advertising_sync(hdev);
}
/* This function controls the background scanning based on hdev->pend_le_conns
@@ -1500,7 +1533,7 @@ int hci_update_background_scan_sync(struct hci_dev *hdev)
bt_dev_dbg(hdev, "stopping background scanning");
- err = hci_scan_disable_sync(hdev, false);
+ err = hci_scan_disable_sync(hdev);
if (err)
bt_dev_err(hdev, "stop background scanning failed: %d",
err);
@@ -1516,13 +1549,6 @@ int hci_update_background_scan_sync(struct hci_dev *hdev)
if (hci_lookup_le_connect(hdev))
return 0;
- err = hci_scan_disable_sync(hdev, false);
- if (err) {
- bt_dev_err(hdev, "stop background scanning failed: %d",
- err);
- return err;
- }
-
bt_dev_dbg(hdev, "start background scanning");
err = hci_passive_scan_sync(hdev);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 9b89c0e7f6da..6bd2255b46b2 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -840,12 +840,7 @@ static u32 get_supported_settings(struct hci_dev *hdev)
settings |= MGMT_SETTING_SECURE_CONN;
settings |= MGMT_SETTING_PRIVACY;
settings |= MGMT_SETTING_STATIC_ADDRESS;
-
- /* When the experimental feature for LL Privacy support is
- * enabled, then advertising is no longer supported.
- */
- if (!hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
- settings |= MGMT_SETTING_ADVERTISING;
+ settings |= MGMT_SETTING_ADVERTISING;
}
if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) ||
@@ -3835,7 +3830,7 @@ static int read_exp_features_info(struct sock *sk, struct hci_dev *hdev,
idx++;
}
- if (hdev && use_ll_privacy(hdev)) {
+ if (hdev && ll_privacy_capable(hdev)) {
if (hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
flags = BIT(0) | BIT(1);
else
@@ -3911,7 +3906,8 @@ static int set_exp_feature(struct sock *sk, struct hci_dev *hdev,
}
#endif
- if (hdev && use_ll_privacy(hdev) && !hdev_is_powered(hdev)) {
+ if (hdev && ll_privacy_capable(hdev) &&
+ !hdev_is_powered(hdev)) {
bool changed = hci_dev_test_flag(hdev,
HCI_ENABLE_LL_PRIVACY);
@@ -5394,13 +5390,6 @@ static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
status);
- /* Enabling the experimental LL Privay support disables support for
- * advertising.
- */
- if (hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
- return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
- MGMT_STATUS_NOT_SUPPORTED);
-
if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
MGMT_STATUS_INVALID_PARAMS);
@@ -7491,13 +7480,6 @@ static int read_adv_features(struct sock *sk, struct hci_dev *hdev,
return mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
MGMT_STATUS_REJECTED);
- /* Enabling the experimental LL Privay support disables support for
- * advertising.
- */
- if (hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
- return mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
- MGMT_STATUS_NOT_SUPPORTED);
-
hci_dev_lock(hdev);
rp_len = sizeof(*rp) + hdev->adv_instance_cnt;
@@ -7737,13 +7719,6 @@ static int add_advertising(struct sock *sk, struct hci_dev *hdev,
return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
status);
- /* Enabling the experimental LL Privay support disables support for
- * advertising.
- */
- if (hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
- return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
- MGMT_STATUS_NOT_SUPPORTED);
-
if (cp->instance < 1 || cp->instance > hdev->le_num_of_adv_sets)
return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
MGMT_STATUS_INVALID_PARAMS);
@@ -8248,13 +8223,6 @@ static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
bt_dev_dbg(hdev, "sock %p", sk);
- /* Enabling the experimental LL Privay support disables support for
- * advertising.
- */
- if (hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
- return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
- MGMT_STATUS_NOT_SUPPORTED);
-
hci_dev_lock(hdev);
if (cp->instance && !hci_find_adv_instance(hdev, cp->instance)) {
--
2.31.1
This is automated email and please do not reply to this email!
Dear submitter,
Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=497585
---Test result---
Test Summary:
CheckPatch FAIL 7.20 seconds
GitLint PASS 0.66 seconds
BuildKernel PASS 505.19 seconds
TestRunner: Setup PASS 361.86 seconds
TestRunner: l2cap-tester PASS 2.94 seconds
TestRunner: bnep-tester PASS 2.09 seconds
TestRunner: mgmt-tester PASS 29.57 seconds
TestRunner: rfcomm-tester PASS 2.24 seconds
TestRunner: sco-tester PASS 2.09 seconds
TestRunner: smp-tester PASS 2.21 seconds
TestRunner: userchan-tester PASS 2.01 seconds
Details
##############################
Test: CheckPatch - FAIL - 7.20 seconds
Run checkpatch.pl script with rule in .checkpatch.conf
Bluetooth: eir: Move EIR/Adv Data functions to its own file
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#82:
new file mode 100644
total: 0 errors, 1 warnings, 0 checks, 1069 lines checked
NOTE: For some of the reported defects, checkpatch may be able to
mechanically convert to the typical style using --fix or --fix-inplace.
"[PATCH] Bluetooth: eir: Move EIR/Adv Data functions to its own file" has style problems, please review.
NOTE: If any of the errors are false positives, please report
them to the maintainer, see CHECKPATCH in MAINTAINERS.
Bluetooth: hci_sync: Make use of hci_cmd_sync_queue set 1
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#17:
Set Device Class - Success 1 Passed 0.024 seconds
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#215:
new file mode 100644
total: 0 errors, 2 warnings, 0 checks, 657 lines checked
NOTE: For some of the reported defects, checkpatch may be able to
mechanically convert to the typical style using --fix or --fix-inplace.
"[PATCH] Bluetooth: hci_sync: Make use of hci_cmd_sync_queue set 1" has style problems, please review.
NOTE: If any of the errors are false positives, please report
them to the maintainer, see CHECKPATCH in MAINTAINERS.
Bluetooth: hci_sync: Make use of hci_cmd_sync_queue set 2
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#17:
Add Advertising - Failure: LE off Passed 0.175 seconds
CHECK: Alignment should match open parenthesis
#402: FILE: net/bluetooth/hci_sync.c:455:
+ err = __hci_cmd_sync_status(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS,
+ sizeof(cp), &cp, HCI_CMD_TIMEOUT);
total: 0 errors, 1 warnings, 1 checks, 1391 lines checked
NOTE: For some of the reported defects, checkpatch may be able to
mechanically convert to the typical style using --fix or --fix-inplace.
"[PATCH] Bluetooth: hci_sync: Make use of hci_cmd_sync_queue set 2" has style problems, please review.
NOTE: If any of the errors are false positives, please report
them to the maintainer, see CHECKPATCH in MAINTAINERS.
Bluetooth: hci_sync: Make use of hci_cmd_sync_queue set 3
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#17:
Add Device - Invalid Params 1 Passed 0.016 seconds
CHECK: Alignment should match open parenthesis
#463: FILE: net/bluetooth/hci_sync.c:1338:
+static int hci_le_set_scan_param_sync(struct hci_dev *hdev, u8 type,
+ u16 interval, u16 window,
total: 0 errors, 1 warnings, 1 checks, 660 lines checked
NOTE: For some of the reported defects, checkpatch may be able to
mechanically convert to the typical style using --fix or --fix-inplace.
"[PATCH] Bluetooth: hci_sync: Make use of hci_cmd_sync_queue set 3" has style problems, please review.
NOTE: If any of the errors are false positives, please report
them to the maintainer, see CHECKPATCH in MAINTAINERS.
##############################
Test: GitLint - PASS - 0.66 seconds
Run gitlint with rule in .gitlint
##############################
Test: BuildKernel - PASS - 505.19 seconds
Build Kernel with minimal configuration supports Bluetooth
##############################
Test: TestRunner: Setup - PASS - 361.86 seconds
Setup environment for running Test Runner
##############################
Test: TestRunner: l2cap-tester - PASS - 2.94 seconds
Run test-runner with l2cap-tester
Total: 40, Passed: 40 (100.0%), Failed: 0, Not Run: 0
##############################
Test: TestRunner: bnep-tester - PASS - 2.09 seconds
Run test-runner with bnep-tester
Total: 1, Passed: 1 (100.0%), Failed: 0, Not Run: 0
##############################
Test: TestRunner: mgmt-tester - PASS - 29.57 seconds
Run test-runner with mgmt-tester
Total: 446, Passed: 433 (97.1%), Failed: 0, Not Run: 13
##############################
Test: TestRunner: rfcomm-tester - PASS - 2.24 seconds
Run test-runner with rfcomm-tester
Total: 9, Passed: 9 (100.0%), Failed: 0, Not Run: 0
##############################
Test: TestRunner: sco-tester - PASS - 2.09 seconds
Run test-runner with sco-tester
Total: 8, Passed: 8 (100.0%), Failed: 0, Not Run: 0
##############################
Test: TestRunner: smp-tester - PASS - 2.21 seconds
Run test-runner with smp-tester
Total: 8, Passed: 8 (100.0%), Failed: 0, Not Run: 0
##############################
Test: TestRunner: userchan-tester - PASS - 2.01 seconds
Run test-runner with userchan-tester
Total: 3, Passed: 3 (100.0%), Failed: 0, Not Run: 0
---
Regards,
Linux Bluetooth