From patchwork Mon Feb 26 21:15:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luiz Augusto von Dentz X-Patchwork-Id: 776022 Received: from mail-ua1-f47.google.com (mail-ua1-f47.google.com [209.85.222.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B58DE12F5A5 for ; Mon, 26 Feb 2024 21:15:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.47 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708982146; cv=none; b=LZLhD4yVUq53VahvlWnC3V8sZEEvv/HVkwk4L1Jc55jh4xJOQM8vk2LDTRJ9uW6V0LV3HJSuE7oAE1uOZclc0jImdhLwkfr6WWi5GpvxV6myq4+prtMgI/CS2s0A4CK8Aw33IL3ggDf8IO/XE+0d0vIg92bsFew5WadFbz+WgwM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708982146; c=relaxed/simple; bh=yAwVjnii4gOdKjVBPRKqszUhbHC1xKlL80xFSv2WaF0=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=UGqee8SiYgif6U/kbQ4jsixzxGSRm1ytsQN4Amc9wshgDkkO7ArdKPCXx+4NL4arWgAO9v19kJAdbZAlllOdU9LGA0rNjPjeyllIOnWBhPgUJP22THRwIHyQ3yVup3RN0lyW+n7/H62dvChi2qykIL2nSWMVEqFfOUukncrVxMM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=JwYruh/m; arc=none smtp.client-ip=209.85.222.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="JwYruh/m" Received: by mail-ua1-f47.google.com with SMTP id a1e0cc1a2514c-7d2e19120b5so2340950241.2 for ; Mon, 26 Feb 2024 13:15:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1708982143; x=1709586943; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:from:to:cc:subject:date:message-id:reply-to; bh=ef5cxWS/DHX003FFu3ZV3XHChZLsTqEMaAm7lSIlAsk=; b=JwYruh/m+p3wyzds3zdCdQLfF0GvRV1aMChSLKxyK6XfE08Pno9evLA975oB+Dg9rt pMg4KgGpGkwfUMKLmRsSpKqz5TtomlyecUkmnBBZXteT7NLou7WinJTzhHhxVNAIqu9W U1QlHKA1s0FfvU7wJgMcUth5Wp2sDgijgXhFXN/yjcVj88BpEJ9QfsuPX3EZvYV9whI+ TK/93AK8gTEqTusMF57v+hh9VK1a9wRBph+ZVH3OK7quS/HabLbRBwKFJ6K+kItPjPgq OgWNVXYxgbk5NdZKbS0kz27IVKbUpq88gKIfQoJ3404GKAhw8dtsh76jSYBTjQoZGrhL Uptw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708982143; x=1709586943; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ef5cxWS/DHX003FFu3ZV3XHChZLsTqEMaAm7lSIlAsk=; b=Xqnk6iDITDtcSOGSQiJyMTrQsWRwhuW7mYKzwhcQ0hTc9M0eGstyfuULChvHMt+nfw ASfpIl/pjyKWVwxTXNTA76x3uwbswQAOzrqHqvVKV4NoSofwMJLPZ2SB9ckuFH5BHzgY 70/voUNOHw7IM6h+96MrJjCOGHbgkzmdxry4X1e0sVzHSYYHUipaQRwFgqeM5aNya6ZX 84QmbM+HT4gROmSXbwJO+F9hBTNkoSvJ0PG1BlOpd/9RN/4YYsJ37gqd+htZLDL8nRpu emFtGjutJLfnG/K3XAxtDyowry3oMXlRNicHOXLITxVrjJt8UXHCWVcrDVkdsXR21tdu 576g== X-Gm-Message-State: AOJu0Yzg9CK/5mqVVt1piR1Sy40vkgrXWjyHJ/idzc1eNX5JUzO22Ir5 H9X5nm2Y5dMa4rzmzgi/DBYeWb+B4HZxqZyopkDmDXwLnOdWhlRT+fA4ERZ0 X-Google-Smtp-Source: AGHT+IGGTInKFg5YWhAzMw+P9kYJyNznvvcAyltsoRWljg0uPl3Zrr3PoQX59PP2xIwV3r3fjxqdIA== X-Received: by 2002:a1f:ca47:0:b0:4c9:b8a8:78d4 with SMTP id a68-20020a1fca47000000b004c9b8a878d4mr5511919vkg.3.1708982141467; Mon, 26 Feb 2024 13:15:41 -0800 (PST) Received: from lvondent-mobl4.. (071-047-239-151.res.spectrum.com. [71.47.239.151]) by smtp.gmail.com with ESMTPSA id ep9-20020a056122390900b004c003cf5e14sm724487vkb.28.2024.02.26.13.15.39 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Feb 2024 13:15:40 -0800 (PST) From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH v3 1/2] Bluetooth: hci_sync: Use address filtering when HCI_PA_SYNC is set Date: Mon, 26 Feb 2024 16:15:38 -0500 Message-ID: <20240226211539.1675928-1-luiz.dentz@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Luiz Augusto von Dentz If HCI_PA_SYNC flag is set it means there is a Periodic Advertising Synchronization pending, so this attempts to locate the address passed to HCI_OP_LE_PA_CREATE_SYNC and program it in the accept list so only reports with that address are processed. Signed-off-by: Luiz Augusto von Dentz --- net/bluetooth/hci_sync.c | 45 +++++++++++++++++++++++++++++++--------- 1 file changed, 35 insertions(+), 10 deletions(-) diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c index 669099cf9b1a..ab609089ac4c 100644 --- a/net/bluetooth/hci_sync.c +++ b/net/bluetooth/hci_sync.c @@ -2566,6 +2566,16 @@ static struct conn_params *conn_params_copy(struct list_head *list, size_t *n) return p; } +/* Clear LE Accept List */ +static int hci_le_clear_accept_list_sync(struct hci_dev *hdev) +{ + if (!(hdev->commands[26] & 0x80)) + return 0; + + return __hci_cmd_sync_status(hdev, HCI_OP_LE_CLEAR_ACCEPT_LIST, 0, NULL, + HCI_CMD_TIMEOUT); +} + /* Device must not be scanning when updating the accept list. * * Update is done using the following sequence: @@ -2614,6 +2624,31 @@ static u8 hci_update_accept_list_sync(struct hci_dev *hdev) goto done; } + /* Force address filtering if PA Sync is in progress */ + if (hci_dev_test_flag(hdev, HCI_PA_SYNC)) { + struct hci_cp_le_pa_create_sync *sent; + + sent = hci_sent_cmd_data(hdev, HCI_OP_LE_PA_CREATE_SYNC); + if (sent) { + struct conn_params pa; + + memset(&pa, 0, sizeof(pa)); + + bacpy(&pa.addr, &sent->addr); + pa.addr_type = sent->addr_type; + + /* Clear first since there could be addresses left + * behind. + */ + hci_le_clear_accept_list_sync(hdev); + + num_entries = 1; + err = hci_le_add_accept_list_sync(hdev, &pa, + &num_entries); + goto done; + } + } + /* Go through the current accept list programmed into the * controller one by one and check if that address is connected or is * still in the list of pending connections or list of devices to @@ -4220,16 +4255,6 @@ static int hci_le_read_accept_list_size_sync(struct hci_dev *hdev) 0, NULL, HCI_CMD_TIMEOUT); } -/* Clear LE Accept List */ -static int hci_le_clear_accept_list_sync(struct hci_dev *hdev) -{ - if (!(hdev->commands[26] & 0x80)) - return 0; - - return __hci_cmd_sync_status(hdev, HCI_OP_LE_CLEAR_ACCEPT_LIST, 0, NULL, - HCI_CMD_TIMEOUT); -} - /* Read LE Resolving List Size */ static int hci_le_read_resolv_list_size_sync(struct hci_dev *hdev) {