From patchwork Thu Mar 14 18:20:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pauli Virtanen X-Patchwork-Id: 13592648 Received: from meesny.iki.fi (meesny.iki.fi [195.140.195.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 64A4176EEC for ; Thu, 14 Mar 2024 18:20:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=195.140.195.201 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710440461; cv=pass; b=JAFQGRSz73YMwVqMjdknIsGkLMVUWQDyToiya7abKjqBfK8e76bl5wV3zUexHmznjhWDcFfO1NJ/C+gotib/wQyCQx4rq3A7wB98JEqidjVfr0P4PqTyh/vITxWqmhZJ3jKho6z6oE3faKVxVY/mum3mpSdd9nssuG4p1vLGCYk= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710440461; c=relaxed/simple; bh=upwLDxZeHoJ7y9p4wA1PGl0wvgGS07qfkAPnl5l4fTE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mvHAzZ17MYO5qnpeD9eLF5SnIuxi1iLAUbNVOqR3bOA7fGBFo2+j7chtd11EY47I+XLqRwMN4s3Lli2NSFAY91/wKVlo0tTKbMj5fAN3bJV6nebIK5U8ygqWIaNRJttsNOkT3V8F+P2Kem9qQx984rBOGIUZx4Lo3+X1X9vN3ec= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iki.fi; spf=pass smtp.mailfrom=iki.fi; dkim=pass (1024-bit key) header.d=iki.fi header.i=@iki.fi header.b=NyGoqq7x; arc=pass smtp.client-ip=195.140.195.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iki.fi Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iki.fi Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=iki.fi header.i=@iki.fi header.b="NyGoqq7x" Received: from monolith.lan (unknown [193.138.7.198]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: pav) by meesny.iki.fi (Postfix) with ESMTPSA id 4TwbKZ6xhlz1026; Thu, 14 Mar 2024 20:20:50 +0200 (EET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=iki.fi; s=meesny; t=1710440451; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=qqAbdeHgbf6SrAl4IQ4INi2J0n7FCiKQNKklcsCW2+I=; b=NyGoqq7x1aqviyAGnMdQR2iCBrZkRli8h4IdgGgK9IUr9po5WKTj8zG/mjwlQgbHDC4ryU KewIC2nfNS/tNN99U0iOUnnDos9dhe4uStd64WQek/ct8hG+3UAHC44ULmiI7g6GIazsBN mhmwiM3sfyIlNHRM/3inZUL/HoaAfdw= ARC-Seal: i=1; s=meesny; d=iki.fi; t=1710440451; a=rsa-sha256; cv=none; b=BYRGPS8UdSwnE3JUoyqeNIgT5g7s2yDUgsRtQ8alDVJu4CHY3SsVSOW0Z5bnIlFgxny46E cy3EDo6qypMocaZgUAooe9DkcKLyKsRGdjExdJx4X3sOSMvTdwYYaAGgo0oEZxOnLl+yDl l9Ng3R9ZmNLMWz173BtSKkvtaeKFeKI= ARC-Authentication-Results: i=1; ORIGINATING; auth=pass smtp.auth=pav smtp.mailfrom=pav@iki.fi ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=iki.fi; s=meesny; t=1710440451; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=qqAbdeHgbf6SrAl4IQ4INi2J0n7FCiKQNKklcsCW2+I=; b=dlm4e1Qvk8q8DWN+/v1lKNYh+24MsVM5bh81FqdzbHJwHQcmpe0KTrUiIP20ZQPIx4ORXi sYjj+X+ZJ7ne7VS4zpEtdrnovt2KbvC9C2f30A6sUGteikycCjNGflmDyy6NvqBkQusFCW H/wXdeTY/HadOf7/Fn0VVS7H4hp7bBU= From: Pauli Virtanen To: linux-bluetooth@vger.kernel.org Cc: Pauli Virtanen Subject: [PATCH v2 2/5] Bluetooth: ISO: add TX timestamping Date: Thu, 14 Mar 2024 20:20:18 +0200 Message-ID: <05534fa39b2e6106bda98e1835a84e49821d6f58.1710440392.git.pav@iki.fi> X-Mailer: git-send-email 2.44.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add BT_SCM_ERROR socket CMSG type. Support TX timestamping in ISO sockets. Support MSG_ERRQUEUE in ISO recvmsg. Signed-off-by: Pauli Virtanen --- include/net/bluetooth/bluetooth.h | 1 + net/bluetooth/iso.c | 24 ++++++++++++++++++++---- 2 files changed, 21 insertions(+), 4 deletions(-) diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 7ffa8c192c3f..9280e72093ee 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -155,6 +155,7 @@ struct bt_voice { #define BT_PKT_STATUS 16 #define BT_SCM_PKT_STATUS 0x03 +#define BT_SCM_ERROR 0x04 #define BT_ISO_QOS 17 diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c index 8af75d37b14c..a77ab9df7994 100644 --- a/net/bluetooth/iso.c +++ b/net/bluetooth/iso.c @@ -489,7 +489,8 @@ static struct bt_iso_qos *iso_sock_get_qos(struct sock *sk) return &iso_pi(sk)->qos; } -static int iso_send_frame(struct sock *sk, struct sk_buff *skb) +static int iso_send_frame(struct sock *sk, struct sk_buff *skb, + const struct sockcm_cookie *sockc) { struct iso_conn *conn = iso_pi(sk)->conn; struct bt_iso_qos *qos = iso_sock_get_qos(sk); @@ -509,10 +510,12 @@ static int iso_send_frame(struct sock *sk, struct sk_buff *skb) hdr->slen = cpu_to_le16(hci_iso_data_len_pack(len, HCI_ISO_STATUS_VALID)); - if (sk->sk_state == BT_CONNECTED) + if (sk->sk_state == BT_CONNECTED) { + hci_tx_timestamp(skb, sockc); hci_send_iso(conn->hcon, skb); - else + } else { len = -ENOTCONN; + } return len; } @@ -1266,6 +1269,7 @@ static int iso_sock_sendmsg(struct socket *sock, struct msghdr *msg, { struct sock *sk = sock->sk; struct sk_buff *skb, **frag; + struct sockcm_cookie sockc; size_t mtu; int err; @@ -1278,6 +1282,14 @@ static int iso_sock_sendmsg(struct socket *sock, struct msghdr *msg, if (msg->msg_flags & MSG_OOB) return -EOPNOTSUPP; + sockcm_init(&sockc, sk); + + if (msg->msg_controllen) { + err = sock_cmsg_send(sk, msg, &sockc); + if (err) + return err; + } + lock_sock(sk); if (sk->sk_state != BT_CONNECTED) { @@ -1323,7 +1335,7 @@ static int iso_sock_sendmsg(struct socket *sock, struct msghdr *msg, lock_sock(sk); if (sk->sk_state == BT_CONNECTED) - err = iso_send_frame(sk, skb); + err = iso_send_frame(sk, skb, &sockc); else err = -ENOTCONN; @@ -1379,6 +1391,10 @@ static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg, BT_DBG("sk %p", sk); + if (unlikely(flags & MSG_ERRQUEUE)) + return sock_recv_errqueue(sk, msg, len, SOL_BLUETOOTH, + BT_SCM_ERROR); + if (test_and_clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { lock_sock(sk); switch (sk->sk_state) {