From patchwork Wed Aug 16 22:31:47 2023 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: 13355746 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D786DC27C7A for ; Wed, 16 Aug 2023 22:32:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346934AbjHPWcZ (ORCPT ); Wed, 16 Aug 2023 18:32:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346928AbjHPWby (ORCPT ); Wed, 16 Aug 2023 18:31:54 -0400 Received: from mail-pl1-x633.google.com (mail-pl1-x633.google.com [IPv6:2607:f8b0:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E0519125 for ; Wed, 16 Aug 2023 15:31:52 -0700 (PDT) Received: by mail-pl1-x633.google.com with SMTP id d9443c01a7336-1bc8045e09dso46666605ad.0 for ; Wed, 16 Aug 2023 15:31:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1692225111; x=1692829911; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=fHCnStYv3VpHCvWJ+Rqq7y9urXTVeJpgi7x1cxy6CdQ=; b=ZTzzUPmizDrDGboO8jNNp8fXAOeP/lBurztSX1MfAS+hxSjDvUCE56n/5gAP1NTM4F 88xnixP6bxI3R4xBzo6QFkf8hcvvvsWEJrCxp+UcAPc0HqUnLAfG6UcOLSKg8seCbzfv k6PJx9NkQGCkV1JhhuCBDWwTl5lTjTwD0Kx21FQmpQfJ4YDOItajCd7Vr8pEM/4GHLfd DLA3Y44ZkucynqQ2QGFOxlLj9eiOq5e3KtNzQHB1vlmxNCTCoXYat8M6n1wys7KwBPbm 1xmIH6DYzlDnGkC6vjaetBcGnr64hYIrDcFZt66AEm37gKP/Gw6c+D51sNpi+wTs/aOM 5N9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692225111; x=1692829911; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=fHCnStYv3VpHCvWJ+Rqq7y9urXTVeJpgi7x1cxy6CdQ=; b=kjVSUYpeUxUg7SM1ZBlngDgJdIQLfXP0yEHX8a6nOaO53E1DyCX77hxY5johunK6bf VNS+9aIl4Vw3BAdK7+MLeFpLknKAS26V/dyck3rhjTglHnpYdom0INP2hiCZD0IPytaU hG0jMEJK6gV53i97IkXaNtR0hlOxO/5GFXghQgnzVfRA0ON9Hy5U5sreIlPivbAvfpT8 qERLafiaOY1NMbFZ+p/mvST8rlzM2BD9dEziA24eainNh4O9FgBxqdyoovHR3qFyA51p RU9I5Tmlgpky0RyEFFtGVtfJqNQiM01m5MKWjbAmJkp53l6B2fXrvyeLzwnhS7r7kWry nqEg== X-Gm-Message-State: AOJu0YwGjLrvvmCRQ+18LBlW6rXbjVs20Eiue1y/GvdAwKLJsYIOMvp7 2ilKqwQoilo7mJkqlL+QwCBK21EQ1rs= X-Google-Smtp-Source: AGHT+IHI6USqwexVzdsVYJC0YvJdWHHhhkKGX2jnsuAxKozLOZg9Qh4GRXm9WVDfLljcMgKcvkzEZQ== X-Received: by 2002:a17:902:ea08:b0:1b3:ea47:796c with SMTP id s8-20020a170902ea0800b001b3ea47796cmr3183104plg.29.1692225111529; Wed, 16 Aug 2023 15:31:51 -0700 (PDT) Received: from lvondent-mobl4.. (c-98-232-221-87.hsd1.or.comcast.net. [98.232.221.87]) by smtp.gmail.com with ESMTPSA id 12-20020a170902e9cc00b001993a1fce7bsm13582347plk.196.2023.08.16.15.31.49 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Aug 2023 15:31:50 -0700 (PDT) From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH BlueZ 2/2] monitor: Detect LE-ACL connections Date: Wed, 16 Aug 2023 15:31:47 -0700 Message-ID: <20230816223147.2787284-2-luiz.dentz@gmail.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230816223147.2787284-1-luiz.dentz@gmail.com> References: <20230816223147.2787284-1-luiz.dentz@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Luiz Augusto von Dentz This enables LE-ACL connections to be detected by processing its events otherwise they would be assumed to be BR-ACL. Also make sure that LE-ISO address is set based on its ACL link. --- monitor/analyze.c | 88 ++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 84 insertions(+), 4 deletions(-) diff --git a/monitor/analyze.c b/monitor/analyze.c index 608ef4d77c85..3cc482cd9227 100644 --- a/monitor/analyze.c +++ b/monitor/analyze.c @@ -71,6 +71,7 @@ struct hci_stats { struct hci_conn { uint16_t handle; + uint16_t link; uint8_t type; uint8_t bdaddr[6]; bool setup_seen; @@ -290,6 +291,20 @@ static struct hci_conn *conn_lookup(struct hci_dev *dev, uint16_t handle) UINT_TO_PTR(handle)); } +static bool link_match_handle(const void *a, const void *b) +{ + const struct hci_conn *conn = a; + uint16_t handle = PTR_TO_UINT(b); + + return (conn->link == handle && !conn->terminated); +} + +static struct hci_conn *link_lookup(struct hci_dev *dev, uint16_t handle) +{ + return queue_find(dev->conn_list, link_match_handle, + UINT_TO_PTR(handle)); +} + static struct hci_conn *conn_lookup_type(struct hci_dev *dev, uint16_t handle, uint8_t type) { @@ -297,7 +312,7 @@ static struct hci_conn *conn_lookup_type(struct hci_dev *dev, uint16_t handle, conn = queue_find(dev->conn_list, conn_match_handle, UINT_TO_PTR(handle)); - if (!conn || conn->type != type) { + if (!conn || (type && conn->type != type)) { conn = conn_alloc(dev, handle, type); queue_push_tail(dev->conn_list, conn); } @@ -542,6 +557,42 @@ static void plot_add(struct queue *queue, struct timeval *latency, queue_push_tail(queue, plot); } +static void evt_le_conn_complete(struct hci_dev *dev, struct timeval *tv, + struct iovec *iov) +{ + const struct bt_hci_evt_le_conn_complete *evt; + struct hci_conn *conn; + + evt = util_iov_pull_mem(iov, sizeof(*evt)); + if (!evt || evt->status) + return; + + conn = conn_lookup_type(dev, le16_to_cpu(evt->handle), CONN_LE_ACL); + if (!conn) + return; + + memcpy(conn->bdaddr, evt->peer_addr, 6); + conn->setup_seen = true; +} + +static void evt_le_enh_conn_complete(struct hci_dev *dev, struct timeval *tv, + struct iovec *iov) +{ + const struct bt_hci_evt_le_enhanced_conn_complete *evt; + struct hci_conn *conn; + + evt = util_iov_pull_mem(iov, sizeof(*evt)); + if (!evt || evt->status) + return; + + conn = conn_lookup_type(dev, le16_to_cpu(evt->handle), CONN_LE_ACL); + if (!conn) + return; + + memcpy(conn->bdaddr, evt->peer_addr, 6); + conn->setup_seen = true; +} + static void evt_num_completed_packets(struct hci_dev *dev, struct timeval *tv, const void *data, uint16_t size) { @@ -612,7 +663,7 @@ static void evt_le_cis_established(struct hci_dev *dev, struct timeval *tv, struct iovec *iov) { const struct bt_hci_evt_le_cis_established *evt; - struct hci_conn *conn; + struct hci_conn *conn, *link; evt = util_iov_pull_mem(iov, sizeof(*evt)); if (!evt || evt->status) @@ -624,6 +675,27 @@ static void evt_le_cis_established(struct hci_dev *dev, struct timeval *tv, return; conn->setup_seen = true; + + link = link_lookup(dev, conn->handle); + if (link) + memcpy(conn->bdaddr, link->bdaddr, 6); +} + +static void evt_le_cis_req(struct hci_dev *dev, struct timeval *tv, + struct iovec *iov) +{ + const struct bt_hci_evt_le_cis_req *evt; + struct hci_conn *conn; + + evt = util_iov_pull_mem(iov, sizeof(*evt)); + if (!evt) + return; + + conn = conn_lookup(dev, le16_to_cpu(evt->acl_handle)); + if (!conn) + return; + + conn->link = le16_to_cpu(evt->cis_handle); } static void evt_le_big_complete(struct hci_dev *dev, struct timeval *tv, @@ -685,9 +757,18 @@ static void evt_le_meta_event(struct hci_dev *dev, struct timeval *tv, return; switch (subevt) { + case BT_HCI_EVT_LE_CONN_COMPLETE: + evt_le_conn_complete(dev, tv, &iov); + break; + case BT_HCI_EVT_LE_ENHANCED_CONN_COMPLETE: + evt_le_enh_conn_complete(dev, tv, &iov); + break; case BT_HCI_EVT_LE_CIS_ESTABLISHED: evt_le_cis_established(dev, tv, &iov); break; + case BT_HCI_EVT_LE_CIS_REQ: + evt_le_cis_req(dev, tv, &iov); + break; case BT_HCI_EVT_LE_BIG_COMPLETE: evt_le_big_complete(dev, tv, &iov); break; @@ -811,8 +892,7 @@ static void acl_pkt(struct timeval *tv, uint16_t index, bool out, dev->num_hci++; dev->num_acl++; - conn = conn_lookup_type(dev, le16_to_cpu(hdr->handle) & 0x0fff, - CONN_BR_ACL); + conn = conn_lookup_type(dev, le16_to_cpu(hdr->handle) & 0x0fff, 0x00); if (!conn) return;