From patchwork Thu Mar 14 18:20:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pauli Virtanen X-Patchwork-Id: 780587 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 7EEBC76EF5 for ; Thu, 14 Mar 2024 18:21:00 +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=1710440462; cv=pass; b=Ygv+GwgGWKXmvbbXvZ3ljVIHXK8t/vKdwH1KQcPlvyZqJReWygYVooO3sp068HxsFa0DiKWZnTvToqsWtctli/U2mzfSH6qHBroh/u1lf5NqiMjcmKZm0MGihn5iPbEENx/LgR1w9IrZveTPHJMtyRmjr735t+ytQ17TgFhB+i4= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710440462; c=relaxed/simple; bh=+/xvom5mfne17LXSydbTnDY/e4A8mQIUOXTRL6flW+w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=roa2PIdu9gPB04Fvb20w/vVA5s3sOIhVkO/KR+4Y3HZ+9L18HkT0obvTmA3a2BftzPaxJur8gNa8D72Ph6KJvFXaTGMdK8yFIyXtXGREPs0zqs2hmp+nZC608tcYuv6xt0cX1A6QyGzQwKNuSyihr1k6R71tQwRP4C+FDv8BC+g= 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=dxTUHFhS; 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="dxTUHFhS" 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 4TwbKc0ZRxz102X; Thu, 14 Mar 2024 20:20:51 +0200 (EET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=iki.fi; s=meesny; t=1710440452; 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=NsLZgdDHfimWlUePJ4AqPklJXSpJwRJMFjiDb6ZlYj8=; b=dxTUHFhSDuEjVt4C0rkboPHQty7dyqexNJid32nNxmAwdJj47WLVH06jBw5QLsdDMi8eM8 gBioI6k8mVjtDSmuaZ6DMeSWU/XMIXTWN/2l4itUfQSGfUSHn0PAxG+bspJkITwFfjFUI/ fjCGdi2/XzQNKjuwW79KpqXMvtvexlM= ARC-Seal: i=1; s=meesny; d=iki.fi; t=1710440452; a=rsa-sha256; cv=none; b=yeAu7hS4wJVRY4H5fZii/Ch495AJ2vFBR+pXpjH+u3GhPzcKf2xAeL/nicMPZfx0NKERRb NQIwFLyjY80Rcnjo8EGsJqVnI2J2wkXyLSlYVcRGbPORT+UQ2sh0q4zp6mc6u3UNSwlFGM LOP+IKdBIzC85lvuf7K0WomEsN1vL24= 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=1710440452; 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=NsLZgdDHfimWlUePJ4AqPklJXSpJwRJMFjiDb6ZlYj8=; b=ZsJAbqLmTjIH1tba089qwWxXaXnKqGWN9m4OaIwUgi+GPHqf/8bmHCpRkcypivaLaR8UaQ jHuKQvxpr+HebaYotMuQ6MDrR4FlPpQJHyo9lm1/1/5Oy6LLSKgYhJBI/YHkk+bUgw15gu +XA5AkHgq4aPQG+oncabRWV4v7JUuIQ= From: Pauli Virtanen To: linux-bluetooth@vger.kernel.org Cc: Pauli Virtanen Subject: [PATCH v2 3/5] Bluetooth: L2CAP: add TX timestamping Date: Thu, 14 Mar 2024 20:20:19 +0200 Message-ID: <0dab77cf9ae8b348094c6a6fc97adeff28108e6b.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 Support TX timestamping in L2CAP sockets. Support MSG_ERRQUEUE recvmsg. Signed-off-by: Pauli Virtanen --- include/net/bluetooth/l2cap.h | 3 ++- net/bluetooth/6lowpan.c | 2 +- net/bluetooth/l2cap_core.c | 11 ++++++++++- net/bluetooth/l2cap_sock.c | 15 ++++++++++++++- net/bluetooth/smp.c | 2 +- 5 files changed, 28 insertions(+), 5 deletions(-) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index a4278aa618ab..3f4057ced971 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -941,7 +941,8 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason); int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, bdaddr_t *dst, u8 dst_type, u16 timeout); int l2cap_chan_reconfigure(struct l2cap_chan *chan, __u16 mtu); -int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len); +int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len, + const struct sockcm_cookie *sockc); void l2cap_chan_busy(struct l2cap_chan *chan, int busy); int l2cap_chan_check_security(struct l2cap_chan *chan, bool initiator); void l2cap_chan_set_defaults(struct l2cap_chan *chan); diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c index 27520a8a486f..24635f9e758a 100644 --- a/net/bluetooth/6lowpan.c +++ b/net/bluetooth/6lowpan.c @@ -443,7 +443,7 @@ static int send_pkt(struct l2cap_chan *chan, struct sk_buff *skb, memset(&msg, 0, sizeof(msg)); iov_iter_kvec(&msg.msg_iter, ITER_SOURCE, &iv, 1, skb->len); - err = l2cap_chan_send(chan, &msg, skb->len); + err = l2cap_chan_send(chan, &msg, skb->len, NULL); if (err > 0) { netdev->stats.tx_bytes += err; netdev->stats.tx_packets++; diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 467b242d8be0..cf3b8e9b7b3b 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -2488,7 +2488,8 @@ static void l2cap_le_flowctl_send(struct l2cap_chan *chan) skb_queue_len(&chan->tx_q)); } -int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len) +int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len, + const struct sockcm_cookie *sockc) { struct sk_buff *skb; int err; @@ -2503,6 +2504,8 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len) if (IS_ERR(skb)) return PTR_ERR(skb); + hci_tx_timestamp(skb, sockc); + l2cap_do_send(chan, skb); return len; } @@ -2526,6 +2529,8 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len) if (err) return err; + hci_tx_timestamp(skb_peek(&seg_queue), sockc); + skb_queue_splice_tail_init(&seg_queue, &chan->tx_q); l2cap_le_flowctl_send(chan); @@ -2547,6 +2552,8 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len) if (IS_ERR(skb)) return PTR_ERR(skb); + hci_tx_timestamp(skb, sockc); + l2cap_do_send(chan, skb); err = len; break; @@ -2570,6 +2577,8 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len) if (err) break; + hci_tx_timestamp(skb_peek(&seg_queue), sockc); + if (chan->mode == L2CAP_MODE_ERTM) l2cap_tx(chan, NULL, &seg_queue, L2CAP_EV_DATA_REQUEST); else diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 4287aa6cc988..9a9f933a748b 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -1115,6 +1115,7 @@ static int l2cap_sock_sendmsg(struct socket *sock, struct msghdr *msg, { struct sock *sk = sock->sk; struct l2cap_chan *chan = l2cap_pi(sk)->chan; + struct sockcm_cookie sockc; int err; BT_DBG("sock %p, sk %p", sock, sk); @@ -1129,6 +1130,14 @@ static int l2cap_sock_sendmsg(struct socket *sock, struct msghdr *msg, if (sk->sk_state != BT_CONNECTED) return -ENOTCONN; + sockcm_init(&sockc, sk); + + if (msg->msg_controllen) { + err = sock_cmsg_send(sk, msg, &sockc); + if (err) + return err; + } + lock_sock(sk); err = bt_sock_wait_ready(sk, msg->msg_flags); release_sock(sk); @@ -1136,7 +1145,7 @@ static int l2cap_sock_sendmsg(struct socket *sock, struct msghdr *msg, return err; l2cap_chan_lock(chan); - err = l2cap_chan_send(chan, msg, len); + err = l2cap_chan_send(chan, msg, len, &sockc); l2cap_chan_unlock(chan); return err; @@ -1149,6 +1158,10 @@ static int l2cap_sock_recvmsg(struct socket *sock, struct msghdr *msg, struct l2cap_pinfo *pi = l2cap_pi(sk); int err; + if (unlikely(flags & MSG_ERRQUEUE)) + return sock_recv_errqueue(sk, msg, len, SOL_BLUETOOTH, + BT_SCM_ERROR); + lock_sock(sk); if (sk->sk_state == BT_CONNECT2 && test_bit(BT_SK_DEFER_SETUP, diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 1e7ea3a4b7ef..4612115ec09a 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -608,7 +608,7 @@ static void smp_send_cmd(struct l2cap_conn *conn, u8 code, u16 len, void *data) iov_iter_kvec(&msg.msg_iter, ITER_SOURCE, iv, 2, 1 + len); - l2cap_chan_send(chan, &msg, 1 + len); + l2cap_chan_send(chan, &msg, 1 + len, NULL); if (!chan->data) return;