From patchwork Wed Jun 14 06:22:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 13279553 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 0FDCB17FC for ; Wed, 14 Jun 2023 06:22:27 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 33CE61BE8 for ; Tue, 13 Jun 2023 23:22:21 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 7C4631FDE3; Wed, 14 Jun 2023 06:22:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1686723740; h=from:from:reply-to: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=T918lJ4pe3lcEkph+FxYYA6LurkHM2prd62WZyXU2AU=; b=QfD4PjsCgF76xTyyVv37gUpmF4iqdhlGLd4g8mqmj9XHiONe2f7pDWXz2lzr3oE2U8SSoE qUO5QJ8u+RMGdpFT+I5ae4ZUNqVtIcRp4XcpT71SFK2He5H8EiE9pY1EUgUFeUtn70rgxJ 0n7Aqq8v5Wy+KhNca6L9bfyrgPWr1qY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1686723740; h=from:from:reply-to: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=T918lJ4pe3lcEkph+FxYYA6LurkHM2prd62WZyXU2AU=; b=rmzjnlosgAcExS2zTgLABEXuOPJALQh30nAki4XIgYzxwIzn+tVgU/7njg/jZpxiSwxmDj N9iipf0vkW+qxqBg== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 5E0252C143; Wed, 14 Jun 2023 06:22:20 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 52F9F51C4DDB; Wed, 14 Jun 2023 08:22:20 +0200 (CEST) From: Hannes Reinecke To: Christoph Hellwig Cc: Sagi Grimberg , Keith Busch , linux-nvme@lists.infradead.org, Jakub Kicinski , netdev@vger.kernel.org, Hannes Reinecke Subject: [PATCH 2/4] net/tls: handle MSG_EOR for tls_device TX flow Date: Wed, 14 Jun 2023 08:22:10 +0200 Message-Id: <20230614062212.73288-3-hare@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230614062212.73288-1-hare@suse.de> References: <20230614062212.73288-1-hare@suse.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org tls_push_data() MSG_MORE / MSG_SENDPAGE_NOTLAST, but bails out on MSG_EOR. But seeing that MSG_EOR is basically the opposite of MSG_MORE / MSG_SENDPAGE_NOTLAST this patch adds handling MSG_EOR by treating it as the absence of MSG_MORE. Consequently we should return an error when both are set. Cc: Jakub Kicinski Cc: netdev@vger.kernel.org Signed-off-by: Hannes Reinecke --- net/tls/tls_device.c | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index b4864d55900f..2103d8b7b316 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -440,11 +440,6 @@ static int tls_push_data(struct sock *sk, int copy, rc = 0; long timeo; - if (flags & - ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | MSG_SENDPAGE_NOTLAST | - MSG_SPLICE_PAGES)) - return -EOPNOTSUPP; - if (unlikely(sk->sk_err)) return -sk->sk_err; @@ -536,6 +531,10 @@ static int tls_push_data(struct sock *sk, more = true; break; } + if (flags & MSG_EOR) { + more = false; + break; + } done = true; } @@ -582,6 +581,14 @@ int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) if (!tls_ctx->zerocopy_sendfile) msg->msg_flags &= ~MSG_SPLICE_PAGES; + if (msg->msg_flags & + ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | MSG_SENDPAGE_NOTLAST | + MSG_SPLICE_PAGES | MSG_EOR)) + return -EOPNOTSUPP; + + if ((msg->msg_flags & (MSG_MORE | MSG_EOR)) == (MSG_MORE | MSG_EOR)) + return -EOPNOTSUPP; + mutex_lock(&tls_ctx->tx_lock); lock_sock(sk); @@ -627,9 +634,17 @@ int tls_device_sendpage(struct sock *sk, struct page *page, struct bio_vec bvec; struct msghdr msg = { .msg_flags = flags | MSG_SPLICE_PAGES, }; + if (flags & + ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | MSG_SENDPAGE_NOTLAST | + MSG_SPLICE_PAGES | MSG_EOR)) + return -EOPNOTSUPP; + if (flags & MSG_SENDPAGE_NOTLAST) msg.msg_flags |= MSG_MORE; + if ((msg.msg_flags & (MSG_MORE | MSG_EOR)) == (MSG_MORE | MSG_EOR)) + return -EINVAL; + if (flags & MSG_OOB) return -EOPNOTSUPP;