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Thu, 12 Mar 2020 03:07:00 -0700 (PDT) From: Sathish Narsimman X-Google-Original-From: Sathish Narsimman To: linux-bluetooth@vger.kernel.org, nsathish41@gmail.com Cc: chethan.tumkur.narayan@intel.com, Sathish Narsimman , Joy Shermin Subject: [PATCH 3/7] Bluetooth: Update the Resolving list when Local IRK changed Date: Thu, 12 Mar 2020 15:37:50 +0530 Message-Id: <20200312100754.3445-4-sathish.narasimman@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200312100754.3445-1-sathish.narasimman@intel.com> References: <20200312100754.3445-1-sathish.narasimman@intel.com> Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org Whenever the Local IRK changes. i.e privacy mode is toggled this patch helps to change the IRK list in the bluetooth controller Signed-off-by: Sathish Narsimman Signed-off-by: Joy Shermin --- include/net/bluetooth/hci_core.h | 2 ++ net/bluetooth/hci_request.c | 50 ++++++++++++++++++++++++++++++++ 2 files changed, 52 insertions(+) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index e5e09d530ce7..43d31a9339a6 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1659,6 +1659,8 @@ void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *bdaddr_type); int hci_req_update_resolving_list(struct hci_dev *hdev, u8 addr_type, bdaddr_t *bdaddr, u8 irk[16]); +void hci_req_update_resolving_list_local_irk(struct hci_dev *hdev); + void hci_req_del_from_resolving_list(struct hci_dev *hdev, u8 addr_type, bdaddr_t *bdaddr); diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index 88225a9ca1f8..9ffb62178d24 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -965,6 +965,56 @@ int hci_req_update_resolving_list(struct hci_dev *hdev, u8 type, bdaddr_t *bdadd return 0; } +void hci_req_update_resolving_list_local_irk(struct hci_dev *hdev) +{ + struct bdaddr_list_with_irk *irk; + struct hci_request req; + + BT_DBG(""); + + /* Nothing to be done if LL privacy is not supported. */ + if (!(hdev->le_features[0] & HCI_LE_LL_PRIVACY)) + return; + + /* If resolving list is empty, nothing is to be done.*/ + if (list_empty(&hdev->le_resolv_list)) + return; + + /* Resolving List cannot be updated if address resolution + * in the controller is enabled and advertisement or scanning + * or create connection command is ongoing. + */ + if ( !hci_dev_test_flag(hdev, HCI_LL_RPA_RESOLUTION) && + ( hci_dev_test_flag(hdev, HCI_LE_ADV) || + hci_dev_test_flag(hdev, HCI_LE_SCAN) || + hci_lookup_le_connect(hdev) ) ) + return; + + /* If resolving list is not empty, then clear the resolving list + * and add back each entry with updated local IRK. + */ + hci_req_init(&req, hdev); + + list_for_each_entry(irk, &hdev->le_resolv_list, list) { + struct hci_cp_le_add_to_resolv_list cp; + struct hci_cp_le_del_from_resolv_list cp1; + + cp1.bdaddr_type = irk->bdaddr_type; + bacpy(&cp1.bdaddr, &irk->bdaddr); + hci_req_add(&req, HCI_OP_LE_DEL_FROM_RESOLV_LIST, + sizeof(cp1), &cp1); + + cp.bdaddr_type = irk->bdaddr_type; + bacpy(&cp.bdaddr, &irk->bdaddr); + memcpy(cp.peer_irk, irk->peer_irk, 16); + memcpy(cp.local_irk, hdev->irk, 16); + hci_req_add(&req, HCI_OP_LE_ADD_TO_RESOLV_LIST, + sizeof(cp), &cp); + } + + hci_req_run(&req, NULL); +} + void hci_req_del_from_resolving_list(struct hci_dev *hdev, u8 addr_type, bdaddr_t *bdaddr) { struct hci_cp_le_del_from_resolv_list cp;